diff options
Diffstat (limited to 'openssl/CHANGES')
| -rw-r--r-- | openssl/CHANGES | 18904 |
1 files changed, 9452 insertions, 9452 deletions
diff --git a/openssl/CHANGES b/openssl/CHANGES index 5cae85c9c..862321280 100644 --- a/openssl/CHANGES +++ b/openssl/CHANGES @@ -1,9452 +1,9452 @@ - - OpenSSL CHANGES - _______________ - - Changes between 1.0.0c and 1.0.0d [8 Feb 2011] - - *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 - [Neel Mehta, Adam Langley, Bodo Moeller (Google)] - - *) Fix bug in string printing code: if *any* escaping is enabled we must - escape the escape character (backslash) or the resulting string is - ambiguous. - [Steve Henson] - - Changes between 1.0.0b and 1.0.0c [2 Dec 2010] - - *) Disable code workaround for ancient and obsolete Netscape browsers - and servers: an attacker can use it in a ciphersuite downgrade attack. - Thanks to Martin Rex for discovering this bug. CVE-2010-4180 - [Steve Henson] - - *) Fixed J-PAKE implementation error, originally discovered by - Sebastien Martini, further info and confirmation from Stefan - Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 - [Ben Laurie] - - Changes between 1.0.0a and 1.0.0b [16 Nov 2010] - - *) Fix extension code to avoid race conditions which can result in a buffer - overrun vulnerability: resumed sessions must not be modified as they can - be shared by multiple threads. CVE-2010-3864 - [Steve Henson] - - *) Fix WIN32 build system to correctly link an ENGINE directory into - a DLL. - [Steve Henson] - - Changes between 1.0.0 and 1.0.0a [01 Jun 2010] - - *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover - (CVE-2010-1633) - [Steve Henson, Peter-Michael Hager <hager@dortmund.net>] - - Changes between 0.9.8n and 1.0.0 [29 Mar 2010] - - *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher - context. The operation can be customised via the ctrl mechanism in - case ENGINEs want to include additional functionality. - [Steve Henson] - - *) Tolerate yet another broken PKCS#8 key format: private key value negative. - [Steve Henson] - - *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to - output hashes compatible with older versions of OpenSSL. - [Willy Weisz <weisz@vcpc.univie.ac.at>] - - *) Fix compression algorithm handling: if resuming a session use the - compression algorithm of the resumed session instead of determining - it from client hello again. Don't allow server to change algorithm. - [Steve Henson] - - *) Add load_crls() function to apps tidying load_certs() too. Add option - to verify utility to allow additional CRLs to be included. - [Steve Henson] - - *) Update OCSP request code to permit adding custom headers to the request: - some responders need this. - [Steve Henson] - - *) The function EVP_PKEY_sign() returns <=0 on error: check return code - correctly. - [Julia Lawall <julia@diku.dk>] - - *) Update verify callback code in apps/s_cb.c and apps/verify.c, it - needlessly dereferenced structures, used obsolete functions and - didn't handle all updated verify codes correctly. - [Steve Henson] - - *) Disable MD2 in the default configuration. - [Steve Henson] - - *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to - indicate the initial BIO being pushed or popped. This makes it possible - to determine whether the BIO is the one explicitly called or as a result - of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so - it handles reference counts correctly and doesn't zero out the I/O bio - when it is not being explicitly popped. WARNING: applications which - included workarounds for the old buggy behaviour will need to be modified - or they could free up already freed BIOs. - [Steve Henson] - - *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni - renaming to all platforms (within the 0.9.8 branch, this was - done conditionally on Netware platforms to avoid a name clash). - [Guenter <lists@gknw.net>] - - *) Add ECDHE and PSK support to DTLS. - [Michael Tuexen <tuexen@fh-muenster.de>] - - *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't - be used on C++. - [Steve Henson] - - *) Add "missing" function EVP_MD_flags() (without this the only way to - retrieve a digest flags is by accessing the structure directly. Update - EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest - or cipher is registered as in the "from" argument. Print out all - registered digests in the dgst usage message instead of manually - attempting to work them out. - [Steve Henson] - - *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: - this allows the use of compression and extensions. Change default cipher - string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 - by default unless an application cipher string requests it. - [Steve Henson] - - *) Alter match criteria in PKCS12_parse(). It used to try to use local - key ids to find matching certificates and keys but some PKCS#12 files - don't follow the (somewhat unwritten) rules and this strategy fails. - Now just gather all certificates together and the first private key - then look for the first certificate that matches the key. - [Steve Henson] - - *) Support use of registered digest and cipher names for dgst and cipher - commands instead of having to add each one as a special case. So now - you can do: - - openssl sha256 foo - - as well as: - - openssl dgst -sha256 foo - - and this works for ENGINE based algorithms too. - - [Steve Henson] - - *) Update Gost ENGINE to support parameter files. - [Victor B. Wagner <vitus@cryptocom.ru>] - - *) Support GeneralizedTime in ca utility. - [Oliver Martin <oliver@volatilevoid.net>, Steve Henson] - - *) Enhance the hash format used for certificate directory links. The new - form uses the canonical encoding (meaning equivalent names will work - even if they aren't identical) and uses SHA1 instead of MD5. This form - is incompatible with the older format and as a result c_rehash should - be used to rebuild symbolic links. - [Steve Henson] - - *) Make PKCS#8 the default write format for private keys, replacing the - traditional format. This form is standardised, more secure and doesn't - include an implicit MD5 dependency. - [Steve Henson] - - *) Add a $gcc_devteam_warn option to Configure. The idea is that any code - committed to OpenSSL should pass this lot as a minimum. - [Steve Henson] - - *) Add session ticket override functionality for use by EAP-FAST. - [Jouni Malinen <j@w1.fi>] - - *) Modify HMAC functions to return a value. Since these can be implemented - in an ENGINE errors can occur. - [Steve Henson] - - *) Type-checked OBJ_bsearch_ex. - [Ben Laurie] - - *) Type-checked OBJ_bsearch. Also some constification necessitated - by type-checking. Still to come: TXT_DB, bsearch(?), - OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, - CONF_VALUE. - [Ben Laurie] - - *) New function OPENSSL_gmtime_adj() to add a specific number of days and - seconds to a tm structure directly, instead of going through OS - specific date routines. This avoids any issues with OS routines such - as the year 2038 bug. New *_adj() functions for ASN1 time structures - and X509_time_adj_ex() to cover the extended range. The existing - X509_time_adj() is still usable and will no longer have any date issues. - [Steve Henson] - - *) Delta CRL support. New use deltas option which will attempt to locate - and search any appropriate delta CRLs available. - - This work was sponsored by Google. - [Steve Henson] - - *) Support for CRLs partitioned by reason code. Reorganise CRL processing - code and add additional score elements. Validate alternate CRL paths - as part of the CRL checking and indicate a new error "CRL path validation - error" in this case. Applications wanting additional details can use - the verify callback and check the new "parent" field. If this is not - NULL CRL path validation is taking place. Existing applications wont - see this because it requires extended CRL support which is off by - default. - - This work was sponsored by Google. - [Steve Henson] - - *) Support for freshest CRL extension. - - This work was sponsored by Google. - [Steve Henson] - - *) Initial indirect CRL support. Currently only supported in the CRLs - passed directly and not via lookup. Process certificate issuer - CRL entry extension and lookup CRL entries by bother issuer name - and serial number. Check and process CRL issuer entry in IDP extension. - - This work was sponsored by Google. - [Steve Henson] - - *) Add support for distinct certificate and CRL paths. The CRL issuer - certificate is validated separately in this case. Only enabled if - an extended CRL support flag is set: this flag will enable additional - CRL functionality in future. - - This work was sponsored by Google. - [Steve Henson] - - *) Add support for policy mappings extension. - - This work was sponsored by Google. - [Steve Henson] - - *) Fixes to pathlength constraint, self issued certificate handling, - policy processing to align with RFC3280 and PKITS tests. - - This work was sponsored by Google. - [Steve Henson] - - *) Support for name constraints certificate extension. DN, email, DNS - and URI types are currently supported. - - This work was sponsored by Google. - [Steve Henson] - - *) To cater for systems that provide a pointer-based thread ID rather - than numeric, deprecate the current numeric thread ID mechanism and - replace it with a structure and associated callback type. This - mechanism allows a numeric "hash" to be extracted from a thread ID in - either case, and on platforms where pointers are larger than 'long', - mixing is done to help ensure the numeric 'hash' is usable even if it - can't be guaranteed unique. The default mechanism is to use "&errno" - as a pointer-based thread ID to distinguish between threads. - - Applications that want to provide their own thread IDs should now use - CRYPTO_THREADID_set_callback() to register a callback that will call - either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). - - Note that ERR_remove_state() is now deprecated, because it is tied - to the assumption that thread IDs are numeric. ERR_remove_state(0) - to free the current thread's error state should be replaced by - ERR_remove_thread_state(NULL). - - (This new approach replaces the functions CRYPTO_set_idptr_callback(), - CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in - OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an - application was previously providing a numeric thread callback that - was inappropriate for distinguishing threads, then uniqueness might - have been obtained with &errno that happened immediately in the - intermediate development versions of OpenSSL; this is no longer the - case, the numeric thread callback will now override the automatic use - of &errno.) - [Geoff Thorpe, with help from Bodo Moeller] - - *) Initial support for different CRL issuing certificates. This covers a - simple case where the self issued certificates in the chain exist and - the real CRL issuer is higher in the existing chain. - - This work was sponsored by Google. - [Steve Henson] - - *) Removed effectively defunct crypto/store from the build. - [Ben Laurie] - - *) Revamp of STACK to provide stronger type-checking. Still to come: - TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, - ASN1_STRING, CONF_VALUE. - [Ben Laurie] - - *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer - RAM on SSL connections. This option can save about 34k per idle SSL. - [Nick Mathewson] - - *) Revamp of LHASH to provide stronger type-checking. Still to come: - STACK, TXT_DB, bsearch, qsort. - [Ben Laurie] - - *) Initial support for Cryptographic Message Syntax (aka CMS) based - on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, - support for data, signedData, compressedData, digestedData and - encryptedData, envelopedData types included. Scripts to check against - RFC4134 examples draft and interop and consistency checks of many - content types and variants. - [Steve Henson] - - *) Add options to enc utility to support use of zlib compression BIO. - [Steve Henson] - - *) Extend mk1mf to support importing of options and assembly language - files from Configure script, currently only included in VC-WIN32. - The assembly language rules can now optionally generate the source - files from the associated perl scripts. - [Steve Henson] - - *) Implement remaining functionality needed to support GOST ciphersuites. - Interop testing has been performed using CryptoPro implementations. - [Victor B. Wagner <vitus@cryptocom.ru>] - - *) s390x assembler pack. - [Andy Polyakov] - - *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU - "family." - [Andy Polyakov] - - *) Implement Opaque PRF Input TLS extension as specified in - draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an - official specification yet and no extension type assignment by - IANA exists, this extension (for now) will have to be explicitly - enabled when building OpenSSL by providing the extension number - to use. For example, specify an option - - -DTLSEXT_TYPE_opaque_prf_input=0x9527 - - to the "config" or "Configure" script to enable the extension, - assuming extension number 0x9527 (which is a completely arbitrary - and unofficial assignment based on the MD5 hash of the Internet - Draft). Note that by doing so, you potentially lose - interoperability with other TLS implementations since these might - be using the same extension number for other purposes. - - SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the - opaque PRF input value to use in the handshake. This will create - an interal copy of the length-'len' string at 'src', and will - return non-zero for success. - - To get more control and flexibility, provide a callback function - by using - - SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) - SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) - - where - - int (*cb)(SSL *, void *peerinput, size_t len, void *arg); - void *arg; - - Callback function 'cb' will be called in handshakes, and is - expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. - Argument 'arg' is for application purposes (the value as given to - SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly - be provided to the callback function). The callback function - has to return non-zero to report success: usually 1 to use opaque - PRF input just if possible, or 2 to enforce use of the opaque PRF - input. In the latter case, the library will abort the handshake - if opaque PRF input is not successfully negotiated. - - Arguments 'peerinput' and 'len' given to the callback function - will always be NULL and 0 in the case of a client. A server will - see the client's opaque PRF input through these variables if - available (NULL and 0 otherwise). Note that if the server - provides an opaque PRF input, the length must be the same as the - length of the client's opaque PRF input. - - Note that the callback function will only be called when creating - a new session (session resumption can resume whatever was - previously negotiated), and will not be called in SSL 2.0 - handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or - SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended - for applications that need to enforce opaque PRF input. - - [Bodo Moeller] - - *) Update ssl code to support digests other than SHA1+MD5 for handshake - MAC. - - [Victor B. Wagner <vitus@cryptocom.ru>] - - *) Add RFC4507 support to OpenSSL. This includes the corrections in - RFC4507bis. The encrypted ticket format is an encrypted encoded - SSL_SESSION structure, that way new session features are automatically - supported. - - If a client application caches session in an SSL_SESSION structure - support is transparent because tickets are now stored in the encoded - SSL_SESSION. - - The SSL_CTX structure automatically generates keys for ticket - protection in servers so again support should be possible - with no application modification. - - If a client or server wishes to disable RFC4507 support then the option - SSL_OP_NO_TICKET can be set. - - Add a TLS extension debugging callback to allow the contents of any client - or server extensions to be examined. - - This work was sponsored by Google. - [Steve Henson] - - *) Final changes to avoid use of pointer pointer casts in OpenSSL. - OpenSSL should now compile cleanly on gcc 4.2 - [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson] - - *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC - support including streaming MAC support: this is required for GOST - ciphersuite support. - [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson] - - *) Add option -stream to use PKCS#7 streaming in smime utility. New - function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() - to output in BER and PEM format. - [Steve Henson] - - *) Experimental support for use of HMAC via EVP_PKEY interface. This - allows HMAC to be handled via the EVP_DigestSign*() interface. The - EVP_PKEY "key" in this case is the HMAC key, potentially allowing - ENGINE support for HMAC keys which are unextractable. New -mac and - -macopt options to dgst utility. - [Steve Henson] - - *) New option -sigopt to dgst utility. Update dgst to use - EVP_Digest{Sign,Verify}*. These two changes make it possible to use - alternative signing paramaters such as X9.31 or PSS in the dgst - utility. - [Steve Henson] - - *) Change ssl_cipher_apply_rule(), the internal function that does - the work each time a ciphersuite string requests enabling - ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or - removing ("!foo+bar") a class of ciphersuites: Now it maintains - the order of disabled ciphersuites such that those ciphersuites - that most recently went from enabled to disabled not only stay - in order with respect to each other, but also have higher priority - than other disabled ciphersuites the next time ciphersuites are - enabled again. - - This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable - the same ciphersuites as with "HIGH" alone, but in a specific - order where the PSK ciphersuites come first (since they are the - most recently disabled ciphersuites when "HIGH" is parsed). - - Also, change ssl_create_cipher_list() (using this new - funcionality) such that between otherwise identical - cihpersuites, ephemeral ECDH is preferred over ephemeral DH in - the default order. - [Bodo Moeller] - - *) Change ssl_create_cipher_list() so that it automatically - arranges the ciphersuites in reasonable order before starting - to process the rule string. Thus, the definition for "DEFAULT" - (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but - remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH". - This makes it much easier to arrive at a reasonable default order - in applications for which anonymous ciphers are OK (meaning - that you can't actually use DEFAULT). - [Bodo Moeller; suggested by Victor Duchovni] - - *) Split the SSL/TLS algorithm mask (as used for ciphersuite string - processing) into multiple integers instead of setting - "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", - "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. - (These masks as well as the individual bit definitions are hidden - away into the non-exported interface ssl/ssl_locl.h, so this - change to the definition of the SSL_CIPHER structure shouldn't - affect applications.) This give us more bits for each of these - categories, so there is no longer a need to coagulate AES128 and - AES256 into a single algorithm bit, and to coagulate Camellia128 - and Camellia256 into a single algorithm bit, which has led to all - kinds of kludges. - - Thus, among other things, the kludge introduced in 0.9.7m and - 0.9.8e for masking out AES256 independently of AES128 or masking - out Camellia256 independently of AES256 is not needed here in 0.9.9. - - With the change, we also introduce new ciphersuite aliases that - so far were missing: "AES128", "AES256", "CAMELLIA128", and - "CAMELLIA256". - [Bodo Moeller] - - *) Add support for dsa-with-SHA224 and dsa-with-SHA256. - Use the leftmost N bytes of the signature input if the input is - larger than the prime q (with N being the size in bytes of q). - [Nils Larsch] - - *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses - it yet and it is largely untested. - [Steve Henson] - - *) Add support for the ecdsa-with-SHA224/256/384/512 signature types. - [Nils Larsch] - - *) Initial incomplete changes to avoid need for function casts in OpenSSL - some compilers (gcc 4.2 and later) reject their use. Safestack is - reimplemented. Update ASN1 to avoid use of legacy functions. - [Steve Henson] - - *) Win32/64 targets are linked with Winsock2. - [Andy Polyakov] - - *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected - to external functions. This can be used to increase CRL handling - efficiency especially when CRLs are very large by (for example) storing - the CRL revoked certificates in a database. - [Steve Henson] - - *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so - new CRLs added to a directory can be used. New command line option - -verify_return_error to s_client and s_server. This causes real errors - to be returned by the verify callback instead of carrying on no matter - what. This reflects the way a "real world" verify callback would behave. - [Steve Henson] - - *) GOST engine, supporting several GOST algorithms and public key formats. - Kindly donated by Cryptocom. - [Cryptocom] - - *) Partial support for Issuing Distribution Point CRL extension. CRLs - partitioned by DP are handled but no indirect CRL or reason partitioning - (yet). Complete overhaul of CRL handling: now the most suitable CRL is - selected via a scoring technique which handles IDP and AKID in CRLs. - [Steve Henson] - - *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which - will ultimately be used for all verify operations: this will remove the - X509_STORE dependency on certificate verification and allow alternative - lookup methods. X509_STORE based implementations of these two callbacks. - [Steve Henson] - - *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names. - Modify get_crl() to find a valid (unexpired) CRL if possible. - [Steve Henson] - - *) New function X509_CRL_match() to check if two CRLs are identical. Normally - this would be called X509_CRL_cmp() but that name is already used by - a function that just compares CRL issuer names. Cache several CRL - extensions in X509_CRL structure and cache CRLDP in X509. - [Steve Henson] - - *) Store a "canonical" representation of X509_NAME structure (ASN1 Name) - this maps equivalent X509_NAME structures into a consistent structure. - Name comparison can then be performed rapidly using memcmp(). - [Steve Henson] - - *) Non-blocking OCSP request processing. Add -timeout option to ocsp - utility. - [Steve Henson] - - *) Allow digests to supply their own micalg string for S/MIME type using - the ctrl EVP_MD_CTRL_MICALG. - [Steve Henson] - - *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the - EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN - ctrl. It can then customise the structure before and/or after signing - if necessary. - [Steve Henson] - - *) New function OBJ_add_sigid() to allow application defined signature OIDs - to be added to OpenSSLs internal tables. New function OBJ_sigid_free() - to free up any added signature OIDs. - [Steve Henson] - - *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), - EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal - digest and cipher tables. New options added to openssl utility: - list-message-digest-algorithms and list-cipher-algorithms. - [Steve Henson] - - *) Change the array representation of binary polynomials: the list - of degrees of non-zero coefficients is now terminated with -1. - Previously it was terminated with 0, which was also part of the - value; thus, the array representation was not applicable to - polynomials where t^0 has coefficient zero. This change makes - the array representation useful in a more general context. - [Douglas Stebila] - - *) Various modifications and fixes to SSL/TLS cipher string - handling. For ECC, the code now distinguishes between fixed ECDH - with RSA certificates on the one hand and with ECDSA certificates - on the other hand, since these are separate ciphersuites. The - unused code for Fortezza ciphersuites has been removed. - - For consistency with EDH, ephemeral ECDH is now called "EECDH" - (not "ECDHE"). For consistency with the code for DH - certificates, use of ECDH certificates is now considered ECDH - authentication, not RSA or ECDSA authentication (the latter is - merely the CA's signing algorithm and not actively used in the - protocol). - - The temporary ciphersuite alias "ECCdraft" is no longer - available, and ECC ciphersuites are no longer excluded from "ALL" - and "DEFAULT". The following aliases now exist for RFC 4492 - ciphersuites, most of these by analogy with the DH case: - - kECDHr - ECDH cert, signed with RSA - kECDHe - ECDH cert, signed with ECDSA - kECDH - ECDH cert (signed with either RSA or ECDSA) - kEECDH - ephemeral ECDH - ECDH - ECDH cert or ephemeral ECDH - - aECDH - ECDH cert - aECDSA - ECDSA cert - ECDSA - ECDSA cert - - AECDH - anonymous ECDH - EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") - - [Bodo Moeller] - - *) Add additional S/MIME capabilities for AES and GOST ciphers if supported. - Use correct micalg parameters depending on digest(s) in signed message. - [Steve Henson] - - *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process - an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. - [Steve Henson] - - *) Initial engine support for EVP_PKEY_METHOD. New functions to permit - an engine to register a method. Add ENGINE lookups for methods and - functional reference processing. - [Steve Henson] - - *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of - EVP_{Sign,Verify}* which allow an application to customise the signature - process. - [Steve Henson] - - *) New -resign option to smime utility. This adds one or more signers - to an existing PKCS#7 signedData structure. Also -md option to use an - alternative message digest algorithm for signing. - [Steve Henson] - - *) Tidy up PKCS#7 routines and add new functions to make it easier to - create PKCS7 structures containing multiple signers. Update smime - application to support multiple signers. - [Steve Henson] - - *) New -macalg option to pkcs12 utility to allow setting of an alternative - digest MAC. - [Steve Henson] - - *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. - Reorganize PBE internals to lookup from a static table using NIDs, - add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: - EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative - PRF which will be automatically used with PBES2. - [Steve Henson] - - *) Replace the algorithm specific calls to generate keys in "req" with the - new API. - [Steve Henson] - - *) Update PKCS#7 enveloped data routines to use new API. This is now - supported by any public key method supporting the encrypt operation. A - ctrl is added to allow the public key algorithm to examine or modify - the PKCS#7 RecipientInfo structure if it needs to: for RSA this is - a no op. - [Steve Henson] - - *) Add a ctrl to asn1 method to allow a public key algorithm to express - a default digest type to use. In most cases this will be SHA1 but some - algorithms (such as GOST) need to specify an alternative digest. The - return value indicates how strong the prefernce is 1 means optional and - 2 is mandatory (that is it is the only supported type). Modify - ASN1_item_sign() to accept a NULL digest argument to indicate it should - use the default md. Update openssl utilities to use the default digest - type for signing if it is not explicitly indicated. - [Steve Henson] - - *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New - EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant - signing method from the key type. This effectively removes the link - between digests and public key types. - [Steve Henson] - - *) Add an OID cross reference table and utility functions. Its purpose is to - translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, - rsaEncryption. This will allow some of the algorithm specific hackery - needed to use the correct OID to be removed. - [Steve Henson] - - *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO - structures for PKCS7_sign(). They are now set up by the relevant public - key ASN1 method. - [Steve Henson] - - *) Add provisional EC pkey method with support for ECDSA and ECDH. - [Steve Henson] - - *) Add support for key derivation (agreement) in the API, DH method and - pkeyutl. - [Steve Henson] - - *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support - public and private key formats. As a side effect these add additional - command line functionality not previously available: DSA signatures can be - generated and verified using pkeyutl and DH key support and generation in - pkey, genpkey. - [Steve Henson] - - *) BeOS support. - [Oliver Tappe <zooey@hirschkaefer.de>] - - *) New make target "install_html_docs" installs HTML renditions of the - manual pages. - [Oliver Tappe <zooey@hirschkaefer.de>] - - *) New utility "genpkey" this is analagous to "genrsa" etc except it can - generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to - support key and parameter generation and add initial key generation - functionality for RSA. - [Steve Henson] - - *) Add functions for main EVP_PKEY_method operations. The undocumented - functions EVP_PKEY_{encrypt,decrypt} have been renamed to - EVP_PKEY_{encrypt,decrypt}_old. - [Steve Henson] - - *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public - key API, doesn't do much yet. - [Steve Henson] - - *) New function EVP_PKEY_asn1_get0_info() to retrieve information about - public key algorithms. New option to openssl utility: - "list-public-key-algorithms" to print out info. - [Steve Henson] - - *) Implement the Supported Elliptic Curves Extension for - ECC ciphersuites from draft-ietf-tls-ecc-12.txt. - [Douglas Stebila] - - *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or - EVP_CIPHER structures to avoid later problems in EVP_cleanup(). - [Steve Henson] - - *) New utilities pkey and pkeyparam. These are similar to algorithm specific - utilities such as rsa, dsa, dsaparam etc except they process any key - type. - [Steve Henson] - - *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New - functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), - EVP_PKEY_print_param() to print public key data from an EVP_PKEY - structure. - [Steve Henson] - - *) Initial support for pluggable public key ASN1. - De-spaghettify the public key ASN1 handling. Move public and private - key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate - algorithm specific handling to a single module within the relevant - algorithm directory. Add functions to allow (near) opaque processing - of public and private key structures. - [Steve Henson] - - *) Implement the Supported Point Formats Extension for - ECC ciphersuites from draft-ietf-tls-ecc-12.txt. - [Douglas Stebila] - - *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members - for the psk identity [hint] and the psk callback functions to the - SSL_SESSION, SSL and SSL_CTX structure. - - New ciphersuites: - PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, - PSK-AES256-CBC-SHA - - New functions: - SSL_CTX_use_psk_identity_hint - SSL_get_psk_identity_hint - SSL_get_psk_identity - SSL_use_psk_identity_hint - - [Mika Kousa and Pasi Eronen of Nokia Corporation] - - *) Add RFC 3161 compliant time stamp request creation, response generation - and response verification functionality. - [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project] - - *) Add initial support for TLS extensions, specifically for the server_name - extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now - have new members for a host name. The SSL data structure has an - additional member SSL_CTX *initial_ctx so that new sessions can be - stored in that context to allow for session resumption, even after the - SSL has been switched to a new SSL_CTX in reaction to a client's - server_name extension. - - New functions (subject to change): - - SSL_get_servername() - SSL_get_servername_type() - SSL_set_SSL_CTX() - - New CTRL codes and macros (subject to change): - - SSL_CTRL_SET_TLSEXT_SERVERNAME_CB - - SSL_CTX_set_tlsext_servername_callback() - SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG - - SSL_CTX_set_tlsext_servername_arg() - SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() - - openssl s_client has a new '-servername ...' option. - - openssl s_server has new options '-servername_host ...', '-cert2 ...', - '-key2 ...', '-servername_fatal' (subject to change). This allows - testing the HostName extension for a specific single host name ('-cert' - and '-key' remain fallbacks for handshakes without HostName - negotiation). If the unrecogninzed_name alert has to be sent, this by - default is a warning; it becomes fatal with the '-servername_fatal' - option. - - [Peter Sylvester, Remy Allais, Christophe Renou] - - *) Whirlpool hash implementation is added. - [Andy Polyakov] - - *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to - bn(64,32). Because of instruction set limitations it doesn't have - any negative impact on performance. This was done mostly in order - to make it possible to share assembler modules, such as bn_mul_mont - implementations, between 32- and 64-bit builds without hassle. - [Andy Polyakov] - - *) Move code previously exiled into file crypto/ec/ec2_smpt.c - to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP - macro. - [Bodo Moeller] - - *) New candidate for BIGNUM assembler implementation, bn_mul_mont, - dedicated Montgomery multiplication procedure, is introduced. - BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher - "64-bit" performance on certain 32-bit targets. - [Andy Polyakov] - - *) New option SSL_OP_NO_COMP to disable use of compression selectively - in SSL structures. New SSL ctrl to set maximum send fragment size. - Save memory by seeting the I/O buffer sizes dynamically instead of - using the maximum available value. - [Steve Henson] - - *) New option -V for 'openssl ciphers'. This prints the ciphersuite code - in addition to the text details. - [Bodo Moeller] - - *) Very, very preliminary EXPERIMENTAL support for printing of general - ASN1 structures. This currently produces rather ugly output and doesn't - handle several customised structures at all. - [Steve Henson] - - *) Integrated support for PVK file format and some related formats such - as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support - these in the 'rsa' and 'dsa' utilities. - [Steve Henson] - - *) Support for PKCS#1 RSAPublicKey format on rsa utility command line. - [Steve Henson] - - *) Remove the ancient ASN1_METHOD code. This was only ever used in one - place for the (very old) "NETSCAPE" format certificates which are now - handled using new ASN1 code equivalents. - [Steve Henson] - - *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD - pointer and make the SSL_METHOD parameter in SSL_CTX_new, - SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. - [Nils Larsch] - - *) Modify CRL distribution points extension code to print out previously - unsupported fields. Enhance extension setting code to allow setting of - all fields. - [Steve Henson] - - *) Add print and set support for Issuing Distribution Point CRL extension. - [Steve Henson] - - *) Change 'Configure' script to enable Camellia by default. - [NTT] - - Changes between 0.9.8q and 0.9.8r [8 Feb 2011] - - *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 - [Neel Mehta, Adam Langley, Bodo Moeller (Google)] - - *) Fix bug in string printing code: if *any* escaping is enabled we must - escape the escape character (backslash) or the resulting string is - ambiguous. - [Steve Henson] - - Changes between 0.9.8p and 0.9.8q [2 Dec 2010] - - *) Disable code workaround for ancient and obsolete Netscape browsers - and servers: an attacker can use it in a ciphersuite downgrade attack. - Thanks to Martin Rex for discovering this bug. CVE-2010-4180 - [Steve Henson] - - *) Fixed J-PAKE implementation error, originally discovered by - Sebastien Martini, further info and confirmation from Stefan - Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 - [Ben Laurie] - - Changes between 0.9.8o and 0.9.8p [16 Nov 2010] - - *) Fix extension code to avoid race conditions which can result in a buffer - overrun vulnerability: resumed sessions must not be modified as they can - be shared by multiple threads. CVE-2010-3864 - [Steve Henson] - - *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939 - [Steve Henson] - - *) Don't reencode certificate when calculating signature: cache and use - the original encoding instead. This makes signature verification of - some broken encodings work correctly. - [Steve Henson] - - *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT - is also one of the inputs. - [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)] - - *) Don't repeatedly append PBE algorithms to table if they already exist. - Sort table on each new add. This effectively makes the table read only - after all algorithms are added and subsequent calls to PKCS12_pbe_add - etc are non-op. - [Steve Henson] - - Changes between 0.9.8n and 0.9.8o [01 Jun 2010] - - [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after - OpenSSL 1.0.0.] - - *) Correct a typo in the CMS ASN1 module which can result in invalid memory - access or freeing data twice (CVE-2010-0742) - [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>] - - *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more - common in certificates and some applications which only call - SSL_library_init and not OpenSSL_add_all_algorithms() will fail. - [Steve Henson] - - *) VMS fixes: - Reduce copying into .apps and .test in makevms.com - Don't try to use blank CA certificate in CA.com - Allow use of C files from original directories in maketests.com - [Steven M. Schweda" <sms@antinode.info>] - - Changes between 0.9.8m and 0.9.8n [24 Mar 2010] - - *) When rejecting SSL/TLS records due to an incorrect version number, never - update s->server with a new major version number. As of - - OpenSSL 0.9.8m if 'short' is a 16-bit type, - - OpenSSL 0.9.8f if 'short' is longer than 16 bits, - the previous behavior could result in a read attempt at NULL when - receiving specific incorrect SSL/TLS records once record payload - protection is active. (CVE-2010-0740) - [Bodo Moeller, Adam Langley <agl@chromium.org>] - - *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL - could be crashed if the relevant tables were not present (e.g. chrooted). - [Tomas Hoger <thoger@redhat.com>] - - Changes between 0.9.8l and 0.9.8m [25 Feb 2010] - - *) Always check bn_wexpend() return values for failure. (CVE-2009-3245) - [Martin Olsson, Neel Mehta] - - *) Fix X509_STORE locking: Every 'objs' access requires a lock (to - accommodate for stack sorting, always a write lock!). - [Bodo Moeller] - - *) On some versions of WIN32 Heap32Next is very slow. This can cause - excessive delays in the RAND_poll(): over a minute. As a workaround - include a time check in the inner Heap32Next loop too. - [Steve Henson] - - *) The code that handled flushing of data in SSL/TLS originally used the - BIO_CTRL_INFO ctrl to see if any data was pending first. This caused - the problem outlined in PR#1949. The fix suggested there however can - trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions - of Apache). So instead simplify the code to flush unconditionally. - This should be fine since flushing with no data to flush is a no op. - [Steve Henson] - - *) Handle TLS versions 2.0 and later properly and correctly use the - highest version of TLS/SSL supported. Although TLS >= 2.0 is some way - off ancient servers have a habit of sticking around for a while... - [Steve Henson] - - *) Modify compression code so it frees up structures without using the - ex_data callbacks. This works around a problem where some applications - call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when - restarting) then use compression (e.g. SSL with compression) later. - This results in significant per-connection memory leaks and - has caused some security issues including CVE-2008-1678 and - CVE-2009-4355. - [Steve Henson] - - *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't - change when encrypting or decrypting. - [Bodo Moeller] - - *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to - connect and renegotiate with servers which do not support RI. - Until RI is more widely deployed this option is enabled by default. - [Steve Henson] - - *) Add "missing" ssl ctrls to clear options and mode. - [Steve Henson] - - *) If client attempts to renegotiate and doesn't support RI respond with - a no_renegotiation alert as required by RFC5746. Some renegotiating - TLS clients will continue a connection gracefully when they receive - the alert. Unfortunately OpenSSL mishandled this alert and would hang - waiting for a server hello which it will never receive. Now we treat a - received no_renegotiation alert as a fatal error. This is because - applications requesting a renegotiation might well expect it to succeed - and would have no code in place to handle the server denying it so the - only safe thing to do is to terminate the connection. - [Steve Henson] - - *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if - peer supports secure renegotiation and 0 otherwise. Print out peer - renegotiation support in s_client/s_server. - [Steve Henson] - - *) Replace the highly broken and deprecated SPKAC certification method with - the updated NID creation version. This should correctly handle UTF8. - [Steve Henson] - - *) Implement RFC5746. Re-enable renegotiation but require the extension - as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION - turns out to be a bad idea. It has been replaced by - SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with - SSL_CTX_set_options(). This is really not recommended unless you - know what you are doing. - [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson] - - *) Fixes to stateless session resumption handling. Use initial_ctx when - issuing and attempting to decrypt tickets in case it has changed during - servername handling. Use a non-zero length session ID when attempting - stateless session resumption: this makes it possible to determine if - a resumption has occurred immediately after receiving server hello - (several places in OpenSSL subtly assume this) instead of later in - the handshake. - [Steve Henson] - - *) The functions ENGINE_ctrl(), OPENSSL_isservice(), - CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error - fixes for a few places where the return code is not checked - correctly. - [Julia Lawall <julia@diku.dk>] - - *) Add --strict-warnings option to Configure script to include devteam - warnings in other configurations. - [Steve Henson] - - *) Add support for --libdir option and LIBDIR variable in makefiles. This - makes it possible to install openssl libraries in locations which - have names other than "lib", for example "/usr/lib64" which some - systems need. - [Steve Henson, based on patch from Jeremy Utley] - - *) Don't allow the use of leading 0x80 in OIDs. This is a violation of - X690 8.9.12 and can produce some misleading textual output of OIDs. - [Steve Henson, reported by Dan Kaminsky] - - *) Delete MD2 from algorithm tables. This follows the recommendation in - several standards that it is not used in new applications due to - several cryptographic weaknesses. For binary compatibility reasons - the MD2 API is still compiled in by default. - [Steve Henson] - - *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved - and restored. - [Steve Henson] - - *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and - OPENSSL_asc2uni conditionally on Netware platforms to avoid a name - clash. - [Guenter <lists@gknw.net>] - - *) Fix the server certificate chain building code to use X509_verify_cert(), - it used to have an ad-hoc builder which was unable to cope with anything - other than a simple chain. - [David Woodhouse <dwmw2@infradead.org>, Steve Henson] - - *) Don't check self signed certificate signatures in X509_verify_cert() - by default (a flag can override this): it just wastes time without - adding any security. As a useful side effect self signed root CAs - with non-FIPS digests are now usable in FIPS mode. - [Steve Henson] - - *) In dtls1_process_out_of_seq_message() the check if the current message - is already buffered was missing. For every new message was memory - allocated, allowing an attacker to perform an denial of service attack - with sending out of seq handshake messages until there is no memory - left. Additionally every future messege was buffered, even if the - sequence number made no sense and would be part of another handshake. - So only messages with sequence numbers less than 10 in advance will be - buffered. (CVE-2009-1378) - [Robin Seggelmann, discovered by Daniel Mentz] - - *) Records are buffered if they arrive with a future epoch to be - processed after finishing the corresponding handshake. There is - currently no limitation to this buffer allowing an attacker to perform - a DOS attack with sending records with future epochs until there is no - memory left. This patch adds the pqueue_size() function to detemine - the size of a buffer and limits the record buffer to 100 entries. - (CVE-2009-1377) - [Robin Seggelmann, discovered by Daniel Mentz] - - *) Keep a copy of frag->msg_header.frag_len so it can be used after the - parent structure is freed. (CVE-2009-1379) - [Daniel Mentz] - - *) Handle non-blocking I/O properly in SSL_shutdown() call. - [Darryl Miles <darryl-mailinglists@netbauds.net>] - - *) Add 2.5.4.* OIDs - [Ilya O. <vrghost@gmail.com>] - - Changes between 0.9.8k and 0.9.8l [5 Nov 2009] - - *) Disable renegotiation completely - this fixes a severe security - problem (CVE-2009-3555) at the cost of breaking all - renegotiation. Renegotiation can be re-enabled by setting - SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at - run-time. This is really not recommended unless you know what - you're doing. - [Ben Laurie] - - Changes between 0.9.8j and 0.9.8k [25 Mar 2009] - - *) Don't set val to NULL when freeing up structures, it is freed up by - underlying code. If sizeof(void *) > sizeof(long) this can result in - zeroing past the valid field. (CVE-2009-0789) - [Paolo Ganci <Paolo.Ganci@AdNovum.CH>] - - *) Fix bug where return value of CMS_SignerInfo_verify_content() was not - checked correctly. This would allow some invalid signed attributes to - appear to verify correctly. (CVE-2009-0591) - [Ivan Nestlerode <inestlerode@us.ibm.com>] - - *) Reject UniversalString and BMPString types with invalid lengths. This - prevents a crash in ASN1_STRING_print_ex() which assumes the strings have - a legal length. (CVE-2009-0590) - [Steve Henson] - - *) Set S/MIME signing as the default purpose rather than setting it - unconditionally. This allows applications to override it at the store - level. - [Steve Henson] - - *) Permit restricted recursion of ASN1 strings. This is needed in practice - to handle some structures. - [Steve Henson] - - *) Improve efficiency of mem_gets: don't search whole buffer each time - for a '\n' - [Jeremy Shapiro <jnshapir@us.ibm.com>] - - *) New -hex option for openssl rand. - [Matthieu Herrb] - - *) Print out UTF8String and NumericString when parsing ASN1. - [Steve Henson] - - *) Support NumericString type for name components. - [Steve Henson] - - *) Allow CC in the environment to override the automatically chosen - compiler. Note that nothing is done to ensure flags work with the - chosen compiler. - [Ben Laurie] - - Changes between 0.9.8i and 0.9.8j [07 Jan 2009] - - *) Properly check EVP_VerifyFinal() and similar return values - (CVE-2008-5077). - [Ben Laurie, Bodo Moeller, Google Security Team] - - *) Enable TLS extensions by default. - [Ben Laurie] - - *) Allow the CHIL engine to be loaded, whether the application is - multithreaded or not. (This does not release the developer from the - obligation to set up the dynamic locking callbacks.) - [Sander Temme <sander@temme.net>] - - *) Use correct exit code if there is an error in dgst command. - [Steve Henson; problem pointed out by Roland Dirlewanger] - - *) Tweak Configure so that you need to say "experimental-jpake" to enable - JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. - [Bodo Moeller] - - *) Add experimental JPAKE support, including demo authentication in - s_client and s_server. - [Ben Laurie] - - *) Set the comparison function in v3_addr_canonize(). - [Rob Austein <sra@hactrn.net>] - - *) Add support for XMPP STARTTLS in s_client. - [Philip Paeps <philip@freebsd.org>] - - *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior - to ensure that even with this option, only ciphersuites in the - server's preference list will be accepted. (Note that the option - applies only when resuming a session, so the earlier behavior was - just about the algorithm choice for symmetric cryptography.) - [Bodo Moeller] - - Changes between 0.9.8h and 0.9.8i [15 Sep 2008] - - *) Fix NULL pointer dereference if a DTLS server received - ChangeCipherSpec as first record (CVE-2009-1386). - [PR #1679] - - *) Fix a state transitition in s3_srvr.c and d1_srvr.c - (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...). - [Nagendra Modadugu] - - *) The fix in 0.9.8c that supposedly got rid of unsafe - double-checked locking was incomplete for RSA blinding, - addressing just one layer of what turns out to have been - doubly unsafe triple-checked locking. - - So now fix this for real by retiring the MONT_HELPER macro - in crypto/rsa/rsa_eay.c. - - [Bodo Moeller; problem pointed out by Marius Schilder] - - *) Various precautionary measures: - - - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). - - - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). - (NB: This would require knowledge of the secret session ticket key - to exploit, in which case you'd be SOL either way.) - - - Change bn_nist.c so that it will properly handle input BIGNUMs - outside the expected range. - - - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG - builds. - - [Neel Mehta, Bodo Moeller] - - *) Allow engines to be "soft loaded" - i.e. optionally don't die if - the load fails. Useful for distros. - [Ben Laurie and the FreeBSD team] - - *) Add support for Local Machine Keyset attribute in PKCS#12 files. - [Steve Henson] - - *) Fix BN_GF2m_mod_arr() top-bit cleanup code. - [Huang Ying] - - *) Expand ENGINE to support engine supplied SSL client certificate functions. - - This work was sponsored by Logica. - [Steve Henson] - - *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows - keystores. Support for SSL/TLS client authentication too. - Not compiled unless enable-capieng specified to Configure. - - This work was sponsored by Logica. - [Steve Henson] - - *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using - ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain - attribute creation routines such as certifcate requests and PKCS#12 - files. - [Steve Henson] - - Changes between 0.9.8g and 0.9.8h [28 May 2008] - - *) Fix flaw if 'Server Key exchange message' is omitted from a TLS - handshake which could lead to a cilent crash as found using the - Codenomicon TLS test suite (CVE-2008-1672) - [Steve Henson, Mark Cox] - - *) Fix double free in TLS server name extensions which could lead to - a remote crash found by Codenomicon TLS test suite (CVE-2008-0891) - [Joe Orton] - - *) Clear error queue in SSL_CTX_use_certificate_chain_file() - - Clear the error queue to ensure that error entries left from - older function calls do not interfere with the correct operation. - [Lutz Jaenicke, Erik de Castro Lopo] - - *) Remove root CA certificates of commercial CAs: - - The OpenSSL project does not recommend any specific CA and does not - have any policy with respect to including or excluding any CA. - Therefore it does not make any sense to ship an arbitrary selection - of root CA certificates with the OpenSSL software. - [Lutz Jaenicke] - - *) RSA OAEP patches to fix two separate invalid memory reads. - The first one involves inputs when 'lzero' is greater than - 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes - before the beginning of from). The second one involves inputs where - the 'db' section contains nothing but zeroes (there is a one-byte - invalid read after the end of 'db'). - [Ivan Nestlerode <inestlerode@us.ibm.com>] - - *) Partial backport from 0.9.9-dev: - - Introduce bn_mul_mont (dedicated Montgomery multiplication - procedure) as a candidate for BIGNUM assembler implementation. - While 0.9.9-dev uses assembler for various architectures, only - x86_64 is available by default here in the 0.9.8 branch, and - 32-bit x86 is available through a compile-time setting. - - To try the 32-bit x86 assembler implementation, use Configure - option "enable-montasm" (which exists only for this backport). - - As "enable-montasm" for 32-bit x86 disclaims code stability - anyway, in this constellation we activate additional code - backported from 0.9.9-dev for further performance improvements, - namely BN_from_montgomery_word. (To enable this otherwise, - e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".) - - [Andy Polyakov (backport partially by Bodo Moeller)] - - *) Add TLS session ticket callback. This allows an application to set - TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed - values. This is useful for key rollover for example where several key - sets may exist with different names. - [Steve Henson] - - *) Reverse ENGINE-internal logic for caching default ENGINE handles. - This was broken until now in 0.9.8 releases, such that the only way - a registered ENGINE could be used (assuming it initialises - successfully on the host) was to explicitly set it as the default - for the relevant algorithms. This is in contradiction with 0.9.7 - behaviour and the documentation. With this fix, when an ENGINE is - registered into a given algorithm's table of implementations, the - 'uptodate' flag is reset so that auto-discovery will be used next - time a new context for that algorithm attempts to select an - implementation. - [Ian Lister (tweaked by Geoff Thorpe)] - - *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 - implemention in the following ways: - - Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be - hard coded. - - Lack of BER streaming support means one pass streaming processing is - only supported if data is detached: setting the streaming flag is - ignored for embedded content. - - CMS support is disabled by default and must be explicitly enabled - with the enable-cms configuration option. - [Steve Henson] - - *) Update the GMP engine glue to do direct copies between BIGNUM and - mpz_t when openssl and GMP use the same limb size. Otherwise the - existing "conversion via a text string export" trick is still used. - [Paul Sheer <paulsheer@gmail.com>] - - *) Zlib compression BIO. This is a filter BIO which compressed and - uncompresses any data passed through it. - [Steve Henson] - - *) Add AES_wrap_key() and AES_unwrap_key() functions to implement - RFC3394 compatible AES key wrapping. - [Steve Henson] - - *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): - sets string data without copying. X509_ALGOR_set0() and - X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) - data. Attribute function X509at_get0_data_by_OBJ(): retrieves data - from an X509_ATTRIBUTE structure optionally checking it occurs only - once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied - data. - [Steve Henson] - - *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() - to get the expected BN_FLG_CONSTTIME behavior. - [Bodo Moeller (Google)] - - *) Netware support: - - - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets - - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) - - added some more tests to do_tests.pl - - fixed RunningProcess usage so that it works with newer LIBC NDKs too - - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency - - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, - netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc - - various changes to netware.pl to enable gcc-cross builds on Win32 - platform - - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) - - various changes to fix missing prototype warnings - - fixed x86nasm.pl to create correct asm files for NASM COFF output - - added AES, WHIRLPOOL and CPUID assembler code to build files - - added missing AES assembler make rules to mk1mf.pl - - fixed order of includes in apps/ocsp.c so that e_os.h settings apply - [Guenter Knauf <eflash@gmx.net>] - - *) Implement certificate status request TLS extension defined in RFC3546. - A client can set the appropriate parameters and receive the encoded - OCSP response via a callback. A server can query the supplied parameters - and set the encoded OCSP response in the callback. Add simplified examples - to s_client and s_server. - [Steve Henson] - - Changes between 0.9.8f and 0.9.8g [19 Oct 2007] - - *) Fix various bugs: - + Binary incompatibility of ssl_ctx_st structure - + DTLS interoperation with non-compliant servers - + Don't call get_session_cb() without proposed session - + Fix ia64 assembler code - [Andy Polyakov, Steve Henson] - - Changes between 0.9.8e and 0.9.8f [11 Oct 2007] - - *) DTLS Handshake overhaul. There were longstanding issues with - OpenSSL DTLS implementation, which were making it impossible for - RFC 4347 compliant client to communicate with OpenSSL server. - Unfortunately just fixing these incompatibilities would "cut off" - pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e - server keeps tolerating non RFC compliant syntax. The opposite is - not true, 0.9.8f client can not communicate with earlier server. - This update even addresses CVE-2007-4995. - [Andy Polyakov] - - *) Changes to avoid need for function casts in OpenSSL: some compilers - (gcc 4.2 and later) reject their use. - [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, - Steve Henson] - - *) Add RFC4507 support to OpenSSL. This includes the corrections in - RFC4507bis. The encrypted ticket format is an encrypted encoded - SSL_SESSION structure, that way new session features are automatically - supported. - - If a client application caches session in an SSL_SESSION structure - support is transparent because tickets are now stored in the encoded - SSL_SESSION. - - The SSL_CTX structure automatically generates keys for ticket - protection in servers so again support should be possible - with no application modification. - - If a client or server wishes to disable RFC4507 support then the option - SSL_OP_NO_TICKET can be set. - - Add a TLS extension debugging callback to allow the contents of any client - or server extensions to be examined. - - This work was sponsored by Google. - [Steve Henson] - - *) Add initial support for TLS extensions, specifically for the server_name - extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now - have new members for a host name. The SSL data structure has an - additional member SSL_CTX *initial_ctx so that new sessions can be - stored in that context to allow for session resumption, even after the - SSL has been switched to a new SSL_CTX in reaction to a client's - server_name extension. - - New functions (subject to change): - - SSL_get_servername() - SSL_get_servername_type() - SSL_set_SSL_CTX() - - New CTRL codes and macros (subject to change): - - SSL_CTRL_SET_TLSEXT_SERVERNAME_CB - - SSL_CTX_set_tlsext_servername_callback() - SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG - - SSL_CTX_set_tlsext_servername_arg() - SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() - - openssl s_client has a new '-servername ...' option. - - openssl s_server has new options '-servername_host ...', '-cert2 ...', - '-key2 ...', '-servername_fatal' (subject to change). This allows - testing the HostName extension for a specific single host name ('-cert' - and '-key' remain fallbacks for handshakes without HostName - negotiation). If the unrecogninzed_name alert has to be sent, this by - default is a warning; it becomes fatal with the '-servername_fatal' - option. - - [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson] - - *) Add AES and SSE2 assembly language support to VC++ build. - [Steve Henson] - - *) Mitigate attack on final subtraction in Montgomery reduction. - [Andy Polyakov] - - *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 - (which previously caused an internal error). - [Bodo Moeller] - - *) Squeeze another 10% out of IGE mode when in != out. - [Ben Laurie] - - *) AES IGE mode speedup. - [Dean Gaudet (Google)] - - *) Add the Korean symmetric 128-bit cipher SEED (see - http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and - add SEED ciphersuites from RFC 4162: - - TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" - TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" - TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" - TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" - - To minimize changes between patchlevels in the OpenSSL 0.9.8 - series, SEED remains excluded from compilation unless OpenSSL - is configured with 'enable-seed'. - [KISA, Bodo Moeller] - - *) Mitigate branch prediction attacks, which can be practical if a - single processor is shared, allowing a spy process to extract - information. For detailed background information, see - http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron, - J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL - and Necessary Software Countermeasures"). The core of the change - are new versions BN_div_no_branch() and - BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), - respectively, which are slower, but avoid the security-relevant - conditional branches. These are automatically called by BN_div() - and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one - of the input BIGNUMs. Also, BN_is_bit_set() has been changed to - remove a conditional branch. - - BN_FLG_CONSTTIME is the new name for the previous - BN_FLG_EXP_CONSTTIME flag, since it now affects more than just - modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag - in the exponent causes BN_mod_exp_mont() to use the alternative - implementation in BN_mod_exp_mont_consttime().) The old name - remains as a deprecated alias. - - Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general - RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses - constant-time implementations for more than just exponentiation. - Here too the old name is kept as a deprecated alias. - - BN_BLINDING_new() will now use BN_dup() for the modulus so that - the BN_BLINDING structure gets an independent copy of the - modulus. This means that the previous "BIGNUM *m" argument to - BN_BLINDING_new() and to BN_BLINDING_create_param() now - essentially becomes "const BIGNUM *m", although we can't actually - change this in the header file before 0.9.9. It allows - RSA_setup_blinding() to use BN_with_flags() on the modulus to - enable BN_FLG_CONSTTIME. - - [Matthew D Wood (Intel Corp)] - - *) In the SSL/TLS server implementation, be strict about session ID - context matching (which matters if an application uses a single - external cache for different purposes). Previously, - out-of-context reuse was forbidden only if SSL_VERIFY_PEER was - set. This did ensure strict client verification, but meant that, - with applications using a single external cache for quite - different requirements, clients could circumvent ciphersuite - restrictions for a given session ID context by starting a session - in a different context. - [Bodo Moeller] - - *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that - a ciphersuite string such as "DEFAULT:RSA" cannot enable - authentication-only ciphersuites. - [Bodo Moeller] - - *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was - not complete and could lead to a possible single byte overflow - (CVE-2007-5135) [Ben Laurie] - - Changes between 0.9.8d and 0.9.8e [23 Feb 2007] - - *) Since AES128 and AES256 (and similarly Camellia128 and - Camellia256) share a single mask bit in the logic of - ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a - kludge to work properly if AES128 is available and AES256 isn't - (or if Camellia128 is available and Camellia256 isn't). - [Victor Duchovni] - - *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c - (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): - When a point or a seed is encoded in a BIT STRING, we need to - prevent the removal of trailing zero bits to get the proper DER - encoding. (By default, crypto/asn1/a_bitstr.c assumes the case - of a NamedBitList, for which trailing 0 bits need to be removed.) - [Bodo Moeller] - - *) Have SSL/TLS server implementation tolerate "mismatched" record - protocol version while receiving ClientHello even if the - ClientHello is fragmented. (The server can't insist on the - particular protocol version it has chosen before the ServerHello - message has informed the client about his choice.) - [Bodo Moeller] - - *) Add RFC 3779 support. - [Rob Austein for ARIN, Ben Laurie] - - *) Load error codes if they are not already present instead of using a - static variable. This allows them to be cleanly unloaded and reloaded. - Improve header file function name parsing. - [Steve Henson] - - *) extend SMTP and IMAP protocol emulation in s_client to use EHLO - or CAPABILITY handshake as required by RFCs. - [Goetz Babin-Ebell] - - Changes between 0.9.8c and 0.9.8d [28 Sep 2006] - - *) Introduce limits to prevent malicious keys being able to - cause a denial of service. (CVE-2006-2940) - [Steve Henson, Bodo Moeller] - - *) Fix ASN.1 parsing of certain invalid structures that can result - in a denial of service. (CVE-2006-2937) [Steve Henson] - - *) Fix buffer overflow in SSL_get_shared_ciphers() function. - (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] - - *) Fix SSL client code which could crash if connecting to a - malicious SSLv2 server. (CVE-2006-4343) - [Tavis Ormandy and Will Drewry, Google Security Team] - - *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites - match only those. Before that, "AES256-SHA" would be interpreted - as a pattern and match "AES128-SHA" too (since AES128-SHA got - the same strength classification in 0.9.7h) as we currently only - have a single AES bit in the ciphersuite description bitmap. - That change, however, also applied to ciphersuite strings such as - "RC4-MD5" that intentionally matched multiple ciphersuites -- - namely, SSL 2.0 ciphersuites in addition to the more common ones - from SSL 3.0/TLS 1.0. - - So we change the selection algorithm again: Naming an explicit - ciphersuite selects this one ciphersuite, and any other similar - ciphersuite (same bitmap) from *other* protocol versions. - Thus, "RC4-MD5" again will properly select both the SSL 2.0 - ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. - - Since SSL 2.0 does not have any ciphersuites for which the - 128/256 bit distinction would be relevant, this works for now. - The proper fix will be to use different bits for AES128 and - AES256, which would have avoided the problems from the beginning; - however, bits are scarce, so we can only do this in a new release - (not just a patchlevel) when we can change the SSL_CIPHER - definition to split the single 'unsigned long mask' bitmap into - multiple values to extend the available space. - - [Bodo Moeller] - - Changes between 0.9.8b and 0.9.8c [05 Sep 2006] - - *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher - (CVE-2006-4339) [Ben Laurie and Google Security Team] - - *) Add AES IGE and biIGE modes. - [Ben Laurie] - - *) Change the Unix randomness entropy gathering to use poll() when - possible instead of select(), since the latter has some - undesirable limitations. - [Darryl Miles via Richard Levitte and Bodo Moeller] - - *) Disable "ECCdraft" ciphersuites more thoroughly. Now special - treatment in ssl/ssl_ciph.s makes sure that these ciphersuites - cannot be implicitly activated as part of, e.g., the "AES" alias. - However, please upgrade to OpenSSL 0.9.9[-dev] for - non-experimental use of the ECC ciphersuites to get TLS extension - support, which is required for curve and point format negotiation - to avoid potential handshake problems. - [Bodo Moeller] - - *) Disable rogue ciphersuites: - - - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") - - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") - - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") - - The latter two were purportedly from - draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really - appear there. - - Also deactivate the remaining ciphersuites from - draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as - unofficial, and the ID has long expired. - [Bodo Moeller] - - *) Fix RSA blinding Heisenbug (problems sometimes occured on - dual-core machines) and other potential thread-safety issues. - [Bodo Moeller] - - *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key - versions), which is now available for royalty-free use - (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html). - Also, add Camellia TLS ciphersuites from RFC 4132. - - To minimize changes between patchlevels in the OpenSSL 0.9.8 - series, Camellia remains excluded from compilation unless OpenSSL - is configured with 'enable-camellia'. - [NTT] - - *) Disable the padding bug check when compression is in use. The padding - bug check assumes the first packet is of even length, this is not - necessarily true if compresssion is enabled and can result in false - positives causing handshake failure. The actual bug test is ancient - code so it is hoped that implementations will either have fixed it by - now or any which still have the bug do not support compression. - [Steve Henson] - - Changes between 0.9.8a and 0.9.8b [04 May 2006] - - *) When applying a cipher rule check to see if string match is an explicit - cipher suite and only match that one cipher suite if it is. - [Steve Henson] - - *) Link in manifests for VC++ if needed. - [Austin Ziegler <halostatue@gmail.com>] - - *) Update support for ECC-based TLS ciphersuites according to - draft-ietf-tls-ecc-12.txt with proposed changes (but without - TLS extensions, which are supported starting with the 0.9.9 - branch, not in the OpenSSL 0.9.8 branch). - [Douglas Stebila] - - *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support - opaque EVP_CIPHER_CTX handling. - [Steve Henson] - - *) Fixes and enhancements to zlib compression code. We now only use - "zlib1.dll" and use the default __cdecl calling convention on Win32 - to conform with the standards mentioned here: - http://www.zlib.net/DLL_FAQ.txt - Static zlib linking now works on Windows and the new --with-zlib-include - --with-zlib-lib options to Configure can be used to supply the location - of the headers and library. Gracefully handle case where zlib library - can't be loaded. - [Steve Henson] - - *) Several fixes and enhancements to the OID generation code. The old code - sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't - handle numbers larger than ULONG_MAX, truncated printing and had a - non standard OBJ_obj2txt() behaviour. - [Steve Henson] - - *) Add support for building of engines under engine/ as shared libraries - under VC++ build system. - [Steve Henson] - - *) Corrected the numerous bugs in the Win32 path splitter in DSO. - Hopefully, we will not see any false combination of paths any more. - [Richard Levitte] - - Changes between 0.9.8 and 0.9.8a [11 Oct 2005] - - *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING - (part of SSL_OP_ALL). This option used to disable the - countermeasure against man-in-the-middle protocol-version - rollback in the SSL 2.0 server implementation, which is a bad - idea. (CVE-2005-2969) - - [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center - for Information Security, National Institute of Advanced Industrial - Science and Technology [AIST], Japan)] - - *) Add two function to clear and return the verify parameter flags. - [Steve Henson] - - *) Keep cipherlists sorted in the source instead of sorting them at - runtime, thus removing the need for a lock. - [Nils Larsch] - - *) Avoid some small subgroup attacks in Diffie-Hellman. - [Nick Mathewson and Ben Laurie] - - *) Add functions for well-known primes. - [Nick Mathewson] - - *) Extended Windows CE support. - [Satoshi Nakamura and Andy Polyakov] - - *) Initialize SSL_METHOD structures at compile time instead of during - runtime, thus removing the need for a lock. - [Steve Henson] - - *) Make PKCS7_decrypt() work even if no certificate is supplied by - attempting to decrypt each encrypted key in turn. Add support to - smime utility. - [Steve Henson] - - Changes between 0.9.7h and 0.9.8 [05 Jul 2005] - - [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after - OpenSSL 0.9.8.] - - *) Add libcrypto.pc and libssl.pc for those who feel they need them. - [Richard Levitte] - - *) Change CA.sh and CA.pl so they don't bundle the CSR and the private - key into the same file any more. - [Richard Levitte] - - *) Add initial support for Win64, both IA64 and AMD64/x64 flavors. - [Andy Polyakov] - - *) Add -utf8 command line and config file option to 'ca'. - [Stefan <stf@udoma.org] - - *) Removed the macro des_crypt(), as it seems to conflict with some - libraries. Use DES_crypt(). - [Richard Levitte] - - *) Correct naming of the 'chil' and '4758cca' ENGINEs. This - involves renaming the source and generated shared-libs for - both. The engines will accept the corrected or legacy ids - ('ncipher' and '4758_cca' respectively) when binding. NB, - this only applies when building 'shared'. - [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe] - - *) Add attribute functions to EVP_PKEY structure. Modify - PKCS12_create() to recognize a CSP name attribute and - use it. Make -CSP option work again in pkcs12 utility. - [Steve Henson] - - *) Add new functionality to the bn blinding code: - - automatic re-creation of the BN_BLINDING parameters after - a fixed number of uses (currently 32) - - add new function for parameter creation - - introduce flags to control the update behaviour of the - BN_BLINDING parameters - - hide BN_BLINDING structure - Add a second BN_BLINDING slot to the RSA structure to improve - performance when a single RSA object is shared among several - threads. - [Nils Larsch] - - *) Add support for DTLS. - [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie] - - *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1) - to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() - [Walter Goulet] - - *) Remove buggy and incompletet DH cert support from - ssl/ssl_rsa.c and ssl/s3_both.c - [Nils Larsch] - - *) Use SHA-1 instead of MD5 as the default digest algorithm for - the apps/openssl applications. - [Nils Larsch] - - *) Compile clean with "-Wall -Wmissing-prototypes - -Wstrict-prototypes -Wmissing-declarations -Werror". Currently - DEBUG_SAFESTACK must also be set. - [Ben Laurie] - - *) Change ./Configure so that certain algorithms can be disabled by default. - The new counterpiece to "no-xxx" is "enable-xxx". - - The patented RC5 and MDC2 algorithms will now be disabled unless - "enable-rc5" and "enable-mdc2", respectively, are specified. - - (IDEA remains enabled despite being patented. This is because IDEA - is frequently required for interoperability, and there is no license - fee for non-commercial use. As before, "no-idea" can be used to - avoid this algorithm.) - - [Bodo Moeller] - - *) Add processing of proxy certificates (see RFC 3820). This work was - sponsored by KTH (The Royal Institute of Technology in Stockholm) and - EGEE (Enabling Grids for E-science in Europe). - [Richard Levitte] - - *) RC4 performance overhaul on modern architectures/implementations, such - as Intel P4, IA-64 and AMD64. - [Andy Polyakov] - - *) New utility extract-section.pl. This can be used specify an alternative - section number in a pod file instead of having to treat each file as - a separate case in Makefile. This can be done by adding two lines to the - pod file: - - =for comment openssl_section:XXX - - The blank line is mandatory. - - [Steve Henson] - - *) New arguments -certform, -keyform and -pass for s_client and s_server - to allow alternative format key and certificate files and passphrase - sources. - [Steve Henson] - - *) New structure X509_VERIFY_PARAM which combines current verify parameters, - update associated structures and add various utility functions. - - Add new policy related verify parameters, include policy checking in - standard verify code. Enhance 'smime' application with extra parameters - to support policy checking and print out. - [Steve Henson] - - *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3 - Nehemiah processors. These extensions support AES encryption in hardware - as well as RNG (though RNG support is currently disabled). - [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov] - - *) Deprecate BN_[get|set]_params() functions (they were ignored internally). - [Geoff Thorpe] - - *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. - [Andy Polyakov and a number of other people] - - *) Improved PowerPC platform support. Most notably BIGNUM assembler - implementation contributed by IBM. - [Suresh Chari, Peter Waltenberg, Andy Polyakov] - - *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public - exponent rather than 'unsigned long'. There is a corresponding change to - the new 'rsa_keygen' element of the RSA_METHOD structure. - [Jelte Jansen, Geoff Thorpe] - - *) Functionality for creating the initial serial number file is now - moved from CA.pl to the 'ca' utility with a new option -create_serial. - - (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial - number file to 1, which is bound to cause problems. To avoid - the problems while respecting compatibility between different 0.9.7 - patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in - CA.pl for serial number initialization. With the new release 0.9.8, - we can fix the problem directly in the 'ca' utility.) - [Steve Henson] - - *) Reduced header interdepencies by declaring more opaque objects in - ossl_typ.h. As a consequence, including some headers (eg. engine.h) will - give fewer recursive includes, which could break lazy source code - so - this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, - developers should define this symbol when building and using openssl to - ensure they track the recommended behaviour, interfaces, [etc], but - backwards-compatible behaviour prevails when this isn't defined. - [Geoff Thorpe] - - *) New function X509_POLICY_NODE_print() which prints out policy nodes. - [Steve Henson] - - *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. - This will generate a random key of the appropriate length based on the - cipher context. The EVP_CIPHER can provide its own random key generation - routine to support keys of a specific form. This is used in the des and - 3des routines to generate a key of the correct parity. Update S/MIME - code to use new functions and hence generate correct parity DES keys. - Add EVP_CHECK_DES_KEY #define to return an error if the key is not - valid (weak or incorrect parity). - [Steve Henson] - - *) Add a local set of CRLs that can be used by X509_verify_cert() as well - as looking them up. This is useful when the verified structure may contain - CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs - present unless the new PKCS7_NO_CRL flag is asserted. - [Steve Henson] - - *) Extend ASN1 oid configuration module. It now additionally accepts the - syntax: - - shortName = some long name, 1.2.3.4 - [Steve Henson] - - *) Reimplemented the BN_CTX implementation. There is now no more static - limitation on the number of variables it can handle nor the depth of the - "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack - information can now expand as required, and rather than having a single - static array of bignums, BN_CTX now uses a linked-list of such arrays - allowing it to expand on demand whilst maintaining the usefulness of - BN_CTX's "bundling". - [Geoff Thorpe] - - *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD - to allow all RSA operations to function using a single BN_CTX. - [Geoff Thorpe] - - *) Preliminary support for certificate policy evaluation and checking. This - is initially intended to pass the tests outlined in "Conformance Testing - of Relying Party Client Certificate Path Processing Logic" v1.07. - [Steve Henson] - - *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and - remained unused and not that useful. A variety of other little bignum - tweaks and fixes have also been made continuing on from the audit (see - below). - [Geoff Thorpe] - - *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with - associated ASN1, EVP and SSL functions and old ASN1 macros. - [Richard Levitte] - - *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results, - and this should never fail. So the return value from the use of - BN_set_word() (which can fail due to needless expansion) is now deprecated; - if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. - [Geoff Thorpe] - - *) BN_CTX_get() should return zero-valued bignums, providing the same - initialised value as BN_new(). - [Geoff Thorpe, suggested by Ulf Möller] - - *) Support for inhibitAnyPolicy certificate extension. - [Steve Henson] - - *) An audit of the BIGNUM code is underway, for which debugging code is - enabled when BN_DEBUG is defined. This makes stricter enforcements on what - is considered valid when processing BIGNUMs, and causes execution to - assert() when a problem is discovered. If BN_DEBUG_RAND is defined, - further steps are taken to deliberately pollute unused data in BIGNUM - structures to try and expose faulty code further on. For now, openssl will - (in its default mode of operation) continue to tolerate the inconsistent - forms that it has tolerated in the past, but authors and packagers should - consider trying openssl and their own applications when compiled with - these debugging symbols defined. It will help highlight potential bugs in - their own code, and will improve the test coverage for OpenSSL itself. At - some point, these tighter rules will become openssl's default to improve - maintainability, though the assert()s and other overheads will remain only - in debugging configurations. See bn.h for more details. - [Geoff Thorpe, Nils Larsch, Ulf Möller] - - *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure - that can only be obtained through BN_CTX_new() (which implicitly - initialises it). The presence of this function only made it possible - to overwrite an existing structure (and cause memory leaks). - [Geoff Thorpe] - - *) Because of the callback-based approach for implementing LHASH as a - template type, lh_insert() adds opaque objects to hash-tables and - lh_doall() or lh_doall_arg() are typically used with a destructor callback - to clean up those corresponding objects before destroying the hash table - (and losing the object pointers). So some over-zealous constifications in - LHASH have been relaxed so that lh_insert() does not take (nor store) the - objects as "const" and the lh_doall[_arg] callback wrappers are not - prototyped to have "const" restrictions on the object pointers they are - given (and so aren't required to cast them away any more). - [Geoff Thorpe] - - *) The tmdiff.h API was so ugly and minimal that our own timing utility - (speed) prefers to use its own implementation. The two implementations - haven't been consolidated as yet (volunteers?) but the tmdiff API has had - its object type properly exposed (MS_TM) instead of casting to/from "char - *". This may still change yet if someone realises MS_TM and "ms_time_***" - aren't necessarily the greatest nomenclatures - but this is what was used - internally to the implementation so I've used that for now. - [Geoff Thorpe] - - *) Ensure that deprecated functions do not get compiled when - OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of - the self-tests were still using deprecated key-generation functions so - these have been updated also. - [Geoff Thorpe] - - *) Reorganise PKCS#7 code to separate the digest location functionality - into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest(). - New function PKCS7_set_digest() to set the digest type for PKCS#7 - digestedData type. Add additional code to correctly generate the - digestedData type and add support for this type in PKCS7 initialization - functions. - [Steve Henson] - - *) New function PKCS7_set0_type_other() this initializes a PKCS7 - structure of type "other". - [Steve Henson] - - *) Fix prime generation loop in crypto/bn/bn_prime.pl by making - sure the loop does correctly stop and breaking ("division by zero") - modulus operations are not performed. The (pre-generated) prime - table crypto/bn/bn_prime.h was already correct, but it could not be - re-generated on some platforms because of the "division by zero" - situation in the script. - [Ralf S. Engelschall] - - *) Update support for ECC-based TLS ciphersuites according to - draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with - SHA-1 now is only used for "small" curves (where the - representation of a field element takes up to 24 bytes); for - larger curves, the field element resulting from ECDH is directly - used as premaster secret. - [Douglas Stebila (Sun Microsystems Laboratories)] - - *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 - curve secp160r1 to the tests. - [Douglas Stebila (Sun Microsystems Laboratories)] - - *) Add the possibility to load symbols globally with DSO. - [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte] - - *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better - control of the error stack. - [Richard Levitte] - - *) Add support for STORE in ENGINE. - [Richard Levitte] - - *) Add the STORE type. The intention is to provide a common interface - to certificate and key stores, be they simple file-based stores, or - HSM-type store, or LDAP stores, or... - NOTE: The code is currently UNTESTED and isn't really used anywhere. - [Richard Levitte] - - *) Add a generic structure called OPENSSL_ITEM. This can be used to - pass a list of arguments to any function as well as provide a way - for a function to pass data back to the caller. - [Richard Levitte] - - *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() - works like BUF_strdup() but can be used to duplicate a portion of - a string. The copy gets NUL-terminated. BUF_memdup() duplicates - a memory area. - [Richard Levitte] - - *) Add the function sk_find_ex() which works like sk_find(), but will - return an index to an element even if an exact match couldn't be - found. The index is guaranteed to point at the element where the - searched-for key would be inserted to preserve sorting order. - [Richard Levitte] - - *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but - takes an extra flags argument for optional functionality. Currently, - the following flags are defined: - - OBJ_BSEARCH_VALUE_ON_NOMATCH - This one gets OBJ_bsearch_ex() to return a pointer to the first - element where the comparing function returns a negative or zero - number. - - OBJ_BSEARCH_FIRST_VALUE_ON_MATCH - This one gets OBJ_bsearch_ex() to return a pointer to the first - element where the comparing function returns zero. This is useful - if there are more than one element where the comparing function - returns zero. - [Richard Levitte] - - *) Make it possible to create self-signed certificates with 'openssl ca' - in such a way that the self-signed certificate becomes part of the - CA database and uses the same mechanisms for serial number generation - as all other certificate signing. The new flag '-selfsign' enables - this functionality. Adapt CA.sh and CA.pl.in. - [Richard Levitte] - - *) Add functionality to check the public key of a certificate request - against a given private. This is useful to check that a certificate - request can be signed by that key (self-signing). - [Richard Levitte] - - *) Make it possible to have multiple active certificates with the same - subject in the CA index file. This is done only if the keyword - 'unique_subject' is set to 'no' in the main CA section (default - if 'CA_default') of the configuration file. The value is saved - with the database itself in a separate index attribute file, - named like the index file with '.attr' appended to the name. - [Richard Levitte] - - *) Generate muti valued AVAs using '+' notation in config files for - req and dirName. - [Steve Henson] - - *) Support for nameConstraints certificate extension. - [Steve Henson] - - *) Support for policyConstraints certificate extension. - [Steve Henson] - - *) Support for policyMappings certificate extension. - [Steve Henson] - - *) Make sure the default DSA_METHOD implementation only uses its - dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, - and change its own handlers to be NULL so as to remove unnecessary - indirection. This lets alternative implementations fallback to the - default implementation more easily. - [Geoff Thorpe] - - *) Support for directoryName in GeneralName related extensions - in config files. - [Steve Henson] - - *) Make it possible to link applications using Makefile.shared. - Make that possible even when linking against static libraries! - [Richard Levitte] - - *) Support for single pass processing for S/MIME signing. This now - means that S/MIME signing can be done from a pipe, in addition - cleartext signing (multipart/signed type) is effectively streaming - and the signed data does not need to be all held in memory. - - This is done with a new flag PKCS7_STREAM. When this flag is set - PKCS7_sign() only initializes the PKCS7 structure and the actual signing - is done after the data is output (and digests calculated) in - SMIME_write_PKCS7(). - [Steve Henson] - - *) Add full support for -rpath/-R, both in shared libraries and - applications, at least on the platforms where it's known how - to do it. - [Richard Levitte] - - *) In crypto/ec/ec_mult.c, implement fast point multiplication with - precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() - will now compute a table of multiples of the generator that - makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() - faster (notably in the case of a single point multiplication, - scalar * generator). - [Nils Larsch, Bodo Moeller] - - *) IPv6 support for certificate extensions. The various extensions - which use the IP:a.b.c.d can now take IPv6 addresses using the - formats of RFC1884 2.2 . IPv6 addresses are now also displayed - correctly. - [Steve Henson] - - *) Added an ENGINE that implements RSA by performing private key - exponentiations with the GMP library. The conversions to and from - GMP's mpz_t format aren't optimised nor are any montgomery forms - cached, and on x86 it appears OpenSSL's own performance has caught up. - However there are likely to be other architectures where GMP could - provide a boost. This ENGINE is not built in by default, but it can be - specified at Configure time and should be accompanied by the necessary - linker additions, eg; - ./config -DOPENSSL_USE_GMP -lgmp - [Geoff Thorpe] - - *) "openssl engine" will not display ENGINE/DSO load failure errors when - testing availability of engines with "-t" - the old behaviour is - produced by increasing the feature's verbosity with "-tt". - [Geoff Thorpe] - - *) ECDSA routines: under certain error conditions uninitialized BN objects - could be freed. Solution: make sure initialization is performed early - enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> - via PR#459) - [Lutz Jaenicke] - - *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD - and DH_METHOD (eg. by ENGINE implementations) to override the normal - software implementations. For DSA and DH, parameter generation can - also be overriden by providing the appropriate method callbacks. - [Geoff Thorpe] - - *) Change the "progress" mechanism used in key-generation and - primality testing to functions that take a new BN_GENCB pointer in - place of callback/argument pairs. The new API functions have "_ex" - postfixes and the older functions are reimplemented as wrappers for - the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide - declarations of the old functions to help (graceful) attempts to - migrate to the new functions. Also, the new key-generation API - functions operate on a caller-supplied key-structure and return - success/failure rather than returning a key or NULL - this is to - help make "keygen" another member function of RSA_METHOD etc. - - Example for using the new callback interface: - - int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; - void *my_arg = ...; - BN_GENCB my_cb; - - BN_GENCB_set(&my_cb, my_callback, my_arg); - - return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); - /* For the meaning of a, b in calls to my_callback(), see the - * documentation of the function that calls the callback. - * cb will point to my_cb; my_arg can be retrieved as cb->arg. - * my_callback should return 1 if it wants BN_is_prime_ex() - * to continue, or 0 to stop. - */ - - [Geoff Thorpe] - - *) Change the ZLIB compression method to be stateful, and make it - available to TLS with the number defined in - draft-ietf-tls-compression-04.txt. - [Richard Levitte] - - *) Add the ASN.1 structures and functions for CertificatePair, which - is defined as follows (according to X.509_4thEditionDraftV6.pdf): - - CertificatePair ::= SEQUENCE { - forward [0] Certificate OPTIONAL, - reverse [1] Certificate OPTIONAL, - -- at least one of the pair shall be present -- } - - Also implement the PEM functions to read and write certificate - pairs, and defined the PEM tag as "CERTIFICATE PAIR". - - This needed to be defined, mostly for the sake of the LDAP - attribute crossCertificatePair, but may prove useful elsewhere as - well. - [Richard Levitte] - - *) Make it possible to inhibit symlinking of shared libraries in - Makefile.shared, for Cygwin's sake. - [Richard Levitte] - - *) Extend the BIGNUM API by creating a function - void BN_set_negative(BIGNUM *a, int neg); - and a macro that behave like - int BN_is_negative(const BIGNUM *a); - - to avoid the need to access 'a->neg' directly in applications. - [Nils Larsch] - - *) Implement fast modular reduction for pseudo-Mersenne primes - used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). - EC_GROUP_new_curve_GFp() will now automatically use this - if applicable. - [Nils Larsch <nla@trustcenter.de>] - - *) Add new lock type (CRYPTO_LOCK_BN). - [Bodo Moeller] - - *) Change the ENGINE framework to automatically load engines - dynamically from specific directories unless they could be - found to already be built in or loaded. Move all the - current engines except for the cryptodev one to a new - directory engines/. - The engines in engines/ are built as shared libraries if - the "shared" options was given to ./Configure or ./config. - Otherwise, they are inserted in libcrypto.a. - /usr/local/ssl/engines is the default directory for dynamic - engines, but that can be overriden at configure time through - the usual use of --prefix and/or --openssldir, and at run - time with the environment variable OPENSSL_ENGINES. - [Geoff Thorpe and Richard Levitte] - - *) Add Makefile.shared, a helper makefile to build shared - libraries. Addapt Makefile.org. - [Richard Levitte] - - *) Add version info to Win32 DLLs. - [Peter 'Luna' Runestig" <peter@runestig.com>] - - *) Add new 'medium level' PKCS#12 API. Certificates and keys - can be added using this API to created arbitrary PKCS#12 - files while avoiding the low level API. - - New options to PKCS12_create(), key or cert can be NULL and - will then be omitted from the output file. The encryption - algorithm NIDs can be set to -1 for no encryption, the mac - iteration count can be set to 0 to omit the mac. - - Enhance pkcs12 utility by making the -nokeys and -nocerts - options work when creating a PKCS#12 file. New option -nomac - to omit the mac, NONE can be set for an encryption algorithm. - New code is modified to use the enhanced PKCS12_create() - instead of the low level API. - [Steve Henson] - - *) Extend ASN1 encoder to support indefinite length constructed - encoding. This can output sequences tags and octet strings in - this form. Modify pk7_asn1.c to support indefinite length - encoding. This is experimental and needs additional code to - be useful, such as an ASN1 bio and some enhanced streaming - PKCS#7 code. - - Extend template encode functionality so that tagging is passed - down to the template encoder. - [Steve Henson] - - *) Let 'openssl req' fail if an argument to '-newkey' is not - recognized instead of using RSA as a default. - [Bodo Moeller] - - *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. - As these are not official, they are not included in "ALL"; - the "ECCdraft" ciphersuite group alias can be used to select them. - [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)] - - *) Add ECDH engine support. - [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)] - - *) Add ECDH in new directory crypto/ecdh/. - [Douglas Stebila (Sun Microsystems Laboratories)] - - *) Let BN_rand_range() abort with an error after 100 iterations - without success (which indicates a broken PRNG). - [Bodo Moeller] - - *) Change BN_mod_sqrt() so that it verifies that the input value - is really the square of the return value. (Previously, - BN_mod_sqrt would show GIGO behaviour.) - [Bodo Moeller] - - *) Add named elliptic curves over binary fields from X9.62, SECG, - and WAP/WTLS; add OIDs that were still missing. - - [Sheueling Chang Shantz and Douglas Stebila - (Sun Microsystems Laboratories)] - - *) Extend the EC library for elliptic curves over binary fields - (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). - New EC_METHOD: - - EC_GF2m_simple_method - - New API functions: - - EC_GROUP_new_curve_GF2m - EC_GROUP_set_curve_GF2m - EC_GROUP_get_curve_GF2m - EC_POINT_set_affine_coordinates_GF2m - EC_POINT_get_affine_coordinates_GF2m - EC_POINT_set_compressed_coordinates_GF2m - - Point compression for binary fields is disabled by default for - patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to - enable it). - - As binary polynomials are represented as BIGNUMs, various members - of the EC_GROUP and EC_POINT data structures can be shared - between the implementations for prime fields and binary fields; - the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m) - are essentially identical to their ..._GFp counterparts. - (For simplicity, the '..._GFp' prefix has been dropped from - various internal method names.) - - An internal 'field_div' method (similar to 'field_mul' and - 'field_sqr') has been added; this is used only for binary fields. - - [Sheueling Chang Shantz and Douglas Stebila - (Sun Microsystems Laboratories)] - - *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() - through methods ('mul', 'precompute_mult'). - - The generic implementations (now internally called 'ec_wNAF_mul' - and 'ec_wNAF_precomputed_mult') remain the default if these - methods are undefined. - - [Sheueling Chang Shantz and Douglas Stebila - (Sun Microsystems Laboratories)] - - *) New function EC_GROUP_get_degree, which is defined through - EC_METHOD. For curves over prime fields, this returns the bit - length of the modulus. - - [Sheueling Chang Shantz and Douglas Stebila - (Sun Microsystems Laboratories)] - - *) New functions EC_GROUP_dup, EC_POINT_dup. - (These simply call ..._new and ..._copy). - - [Sheueling Chang Shantz and Douglas Stebila - (Sun Microsystems Laboratories)] - - *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. - Polynomials are represented as BIGNUMs (where the sign bit is not - used) in the following functions [macros]: - - BN_GF2m_add - BN_GF2m_sub [= BN_GF2m_add] - BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] - BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] - BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] - BN_GF2m_mod_inv - BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] - BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] - BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] - BN_GF2m_cmp [= BN_ucmp] - - (Note that only the 'mod' functions are actually for fields GF(2^m). - BN_GF2m_add() is misnomer, but this is for the sake of consistency.) - - For some functions, an the irreducible polynomial defining a - field can be given as an 'unsigned int[]' with strictly - decreasing elements giving the indices of those bits that are set; - i.e., p[] represents the polynomial - f(t) = t^p[0] + t^p[1] + ... + t^p[k] - where - p[0] > p[1] > ... > p[k] = 0. - This applies to the following functions: - - BN_GF2m_mod_arr - BN_GF2m_mod_mul_arr - BN_GF2m_mod_sqr_arr - BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] - BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] - BN_GF2m_mod_exp_arr - BN_GF2m_mod_sqrt_arr - BN_GF2m_mod_solve_quad_arr - BN_GF2m_poly2arr - BN_GF2m_arr2poly - - Conversion can be performed by the following functions: - - BN_GF2m_poly2arr - BN_GF2m_arr2poly - - bntest.c has additional tests for binary polynomial arithmetic. - - Two implementations for BN_GF2m_mod_div() are available. - The default algorithm simply uses BN_GF2m_mod_inv() and - BN_GF2m_mod_mul(). The alternative algorithm is compiled in only - if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the - copyright notice in crypto/bn/bn_gf2m.c before enabling it). - - [Sheueling Chang Shantz and Douglas Stebila - (Sun Microsystems Laboratories)] - - *) Add new error code 'ERR_R_DISABLED' that can be used when some - functionality is disabled at compile-time. - [Douglas Stebila <douglas.stebila@sun.com>] - - *) Change default behaviour of 'openssl asn1parse' so that more - information is visible when viewing, e.g., a certificate: - - Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' - mode the content of non-printable OCTET STRINGs is output in a - style similar to INTEGERs, but with '[HEX DUMP]' prepended to - avoid the appearance of a printable string. - [Nils Larsch <nla@trustcenter.de>] - - *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access - functions - EC_GROUP_set_asn1_flag() - EC_GROUP_get_asn1_flag() - EC_GROUP_set_point_conversion_form() - EC_GROUP_get_point_conversion_form() - These control ASN1 encoding details: - - Curves (i.e., groups) are encoded explicitly unless asn1_flag - has been set to OPENSSL_EC_NAMED_CURVE. - - Points are encoded in uncompressed form by default; options for - asn1_for are as for point2oct, namely - POINT_CONVERSION_COMPRESSED - POINT_CONVERSION_UNCOMPRESSED - POINT_CONVERSION_HYBRID - - Also add 'seed' and 'seed_len' members to EC_GROUP with access - functions - EC_GROUP_set_seed() - EC_GROUP_get0_seed() - EC_GROUP_get_seed_len() - This is used only for ASN1 purposes (so far). - [Nils Larsch <nla@trustcenter.de>] - - *) Add 'field_type' member to EC_METHOD, which holds the NID - of the appropriate field type OID. The new function - EC_METHOD_get_field_type() returns this value. - [Nils Larsch <nla@trustcenter.de>] - - *) Add functions - EC_POINT_point2bn() - EC_POINT_bn2point() - EC_POINT_point2hex() - EC_POINT_hex2point() - providing useful interfaces to EC_POINT_point2oct() and - EC_POINT_oct2point(). - [Nils Larsch <nla@trustcenter.de>] - - *) Change internals of the EC library so that the functions - EC_GROUP_set_generator() - EC_GROUP_get_generator() - EC_GROUP_get_order() - EC_GROUP_get_cofactor() - are implemented directly in crypto/ec/ec_lib.c and not dispatched - to methods, which would lead to unnecessary code duplication when - adding different types of curves. - [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller] - - *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM - arithmetic, and such that modified wNAFs are generated - (which avoid length expansion in many cases). - [Bodo Moeller] - - *) Add a function EC_GROUP_check_discriminant() (defined via - EC_METHOD) that verifies that the curve discriminant is non-zero. - - Add a function EC_GROUP_check() that makes some sanity tests - on a EC_GROUP, its generator and order. This includes - EC_GROUP_check_discriminant(). - [Nils Larsch <nla@trustcenter.de>] - - *) Add ECDSA in new directory crypto/ecdsa/. - - Add applications 'openssl ecparam' and 'openssl ecdsa' - (these are based on 'openssl dsaparam' and 'openssl dsa'). - - ECDSA support is also included in various other files across the - library. Most notably, - - 'openssl req' now has a '-newkey ecdsa:file' option; - - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; - - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and - d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make - them suitable for ECDSA where domain parameters must be - extracted before the specific public key; - - ECDSA engine support has been added. - [Nils Larsch <nla@trustcenter.de>] - - *) Include some named elliptic curves, and add OIDs from X9.62, - SECG, and WAP/WTLS. Each curve can be obtained from the new - function - EC_GROUP_new_by_curve_name(), - and the list of available named curves can be obtained with - EC_get_builtin_curves(). - Also add a 'curve_name' member to EC_GROUP objects, which can be - accessed via - EC_GROUP_set_curve_name() - EC_GROUP_get_curve_name() - [Nils Larsch <larsch@trustcenter.de, Bodo Moeller] - - *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there - was actually never needed) and in BN_mul(). The removal in BN_mul() - required a small change in bn_mul_part_recursive() and the addition - of the functions bn_cmp_part_words(), bn_sub_part_words() and - bn_add_part_words(), which do the same thing as bn_cmp_words(), - bn_sub_words() and bn_add_words() except they take arrays with - differing sizes. - [Richard Levitte] - - Changes between 0.9.7l and 0.9.7m [23 Feb 2007] - - *) Cleanse PEM buffers before freeing them since they may contain - sensitive data. - [Benjamin Bennett <ben@psc.edu>] - - *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that - a ciphersuite string such as "DEFAULT:RSA" cannot enable - authentication-only ciphersuites. - [Bodo Moeller] - - *) Since AES128 and AES256 share a single mask bit in the logic of - ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a - kludge to work properly if AES128 is available and AES256 isn't. - [Victor Duchovni] - - *) Expand security boundary to match 1.1.1 module. - [Steve Henson] - - *) Remove redundant features: hash file source, editing of test vectors - modify fipsld to use external fips_premain.c signature. - [Steve Henson] - - *) New perl script mkfipsscr.pl to create shell scripts or batch files to - run algorithm test programs. - [Steve Henson] - - *) Make algorithm test programs more tolerant of whitespace. - [Steve Henson] - - *) Have SSL/TLS server implementation tolerate "mismatched" record - protocol version while receiving ClientHello even if the - ClientHello is fragmented. (The server can't insist on the - particular protocol version it has chosen before the ServerHello - message has informed the client about his choice.) - [Bodo Moeller] - - *) Load error codes if they are not already present instead of using a - static variable. This allows them to be cleanly unloaded and reloaded. - [Steve Henson] - - Changes between 0.9.7k and 0.9.7l [28 Sep 2006] - - *) Introduce limits to prevent malicious keys being able to - cause a denial of service. (CVE-2006-2940) - [Steve Henson, Bodo Moeller] - - *) Fix ASN.1 parsing of certain invalid structures that can result - in a denial of service. (CVE-2006-2937) [Steve Henson] - - *) Fix buffer overflow in SSL_get_shared_ciphers() function. - (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] - - *) Fix SSL client code which could crash if connecting to a - malicious SSLv2 server. (CVE-2006-4343) - [Tavis Ormandy and Will Drewry, Google Security Team] - - *) Change ciphersuite string processing so that an explicit - ciphersuite selects this one ciphersuite (so that "AES256-SHA" - will no longer include "AES128-SHA"), and any other similar - ciphersuite (same bitmap) from *other* protocol versions (so that - "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the - SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining - changes from 0.9.8b and 0.9.8d. - [Bodo Moeller] - - Changes between 0.9.7j and 0.9.7k [05 Sep 2006] - - *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher - (CVE-2006-4339) [Ben Laurie and Google Security Team] - - *) Change the Unix randomness entropy gathering to use poll() when - possible instead of select(), since the latter has some - undesirable limitations. - [Darryl Miles via Richard Levitte and Bodo Moeller] - - *) Disable rogue ciphersuites: - - - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") - - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") - - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") - - The latter two were purportedly from - draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really - appear there. - - Also deactive the remaining ciphersuites from - draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as - unofficial, and the ID has long expired. - [Bodo Moeller] - - *) Fix RSA blinding Heisenbug (problems sometimes occured on - dual-core machines) and other potential thread-safety issues. - [Bodo Moeller] - - Changes between 0.9.7i and 0.9.7j [04 May 2006] - - *) Adapt fipsld and the build system to link against the validated FIPS - module in FIPS mode. - [Steve Henson] - - *) Fixes for VC++ 2005 build under Windows. - [Steve Henson] - - *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make - from a Windows bash shell such as MSYS. It is autodetected from the - "config" script when run from a VC++ environment. Modify standard VC++ - build to use fipscanister.o from the GNU make build. - [Steve Henson] - - Changes between 0.9.7h and 0.9.7i [14 Oct 2005] - - *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. - The value now differs depending on if you build for FIPS or not. - BEWARE! A program linked with a shared FIPSed libcrypto can't be - safely run with a non-FIPSed libcrypto, as it may crash because of - the difference induced by this change. - [Andy Polyakov] - - Changes between 0.9.7g and 0.9.7h [11 Oct 2005] - - *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING - (part of SSL_OP_ALL). This option used to disable the - countermeasure against man-in-the-middle protocol-version - rollback in the SSL 2.0 server implementation, which is a bad - idea. (CVE-2005-2969) - - [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center - for Information Security, National Institute of Advanced Industrial - Science and Technology [AIST], Japan)] - - *) Minimal support for X9.31 signatures and PSS padding modes. This is - mainly for FIPS compliance and not fully integrated at this stage. - [Steve Henson] - - *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform - the exponentiation using a fixed-length exponent. (Otherwise, - the information leaked through timing could expose the secret key - after many signatures; cf. Bleichenbacher's attack on DSA with - biased k.) - [Bodo Moeller] - - *) Make a new fixed-window mod_exp implementation the default for - RSA, DSA, and DH private-key operations so that the sequence of - squares and multiplies and the memory access pattern are - independent of the particular secret key. This will mitigate - cache-timing and potential related attacks. - - BN_mod_exp_mont_consttime() is the new exponentiation implementation, - and this is automatically used by BN_mod_exp_mont() if the new flag - BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH - will use this BN flag for private exponents unless the flag - RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or - DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. - - [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller] - - *) Change the client implementation for SSLv23_method() and - SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 - Client Hello message format if the SSL_OP_NO_SSLv2 option is set. - (Previously, the SSL 2.0 backwards compatible Client Hello - message format would be used even with SSL_OP_NO_SSLv2.) - [Bodo Moeller] - - *) Add support for smime-type MIME parameter in S/MIME messages which some - clients need. - [Steve Henson] - - *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in - a threadsafe manner. Modify rsa code to use new function and add calls - to dsa and dh code (which had race conditions before). - [Steve Henson] - - *) Include the fixed error library code in the C error file definitions - instead of fixing them up at runtime. This keeps the error code - structures constant. - [Steve Henson] - - Changes between 0.9.7f and 0.9.7g [11 Apr 2005] - - [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after - OpenSSL 0.9.8.] - - *) Fixes for newer kerberos headers. NB: the casts are needed because - the 'length' field is signed on one version and unsigned on another - with no (?) obvious way to tell the difference, without these VC++ - complains. Also the "definition" of FAR (blank) is no longer included - nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up - some needed definitions. - [Steve Henson] - - *) Undo Cygwin change. - [Ulf Möller] - - *) Added support for proxy certificates according to RFC 3820. - Because they may be a security thread to unaware applications, - they must be explicitely allowed in run-time. See - docs/HOWTO/proxy_certificates.txt for further information. - [Richard Levitte] - - Changes between 0.9.7e and 0.9.7f [22 Mar 2005] - - *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating - server and client random values. Previously - (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in - less random data when sizeof(time_t) > 4 (some 64 bit platforms). - - This change has negligible security impact because: - - 1. Server and client random values still have 24 bytes of pseudo random - data. - - 2. Server and client random values are sent in the clear in the initial - handshake. - - 3. The master secret is derived using the premaster secret (48 bytes in - size for static RSA ciphersuites) as well as client server and random - values. - - The OpenSSL team would like to thank the UK NISCC for bringing this issue - to our attention. - - [Stephen Henson, reported by UK NISCC] - - *) Use Windows randomness collection on Cygwin. - [Ulf Möller] - - *) Fix hang in EGD/PRNGD query when communication socket is closed - prematurely by EGD/PRNGD. - [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014] - - *) Prompt for pass phrases when appropriate for PKCS12 input format. - [Steve Henson] - - *) Back-port of selected performance improvements from development - branch, as well as improved support for PowerPC platforms. - [Andy Polyakov] - - *) Add lots of checks for memory allocation failure, error codes to indicate - failure and freeing up memory if a failure occurs. - [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson] - - *) Add new -passin argument to dgst. - [Steve Henson] - - *) Perform some character comparisons of different types in X509_NAME_cmp: - this is needed for some certificates that reencode DNs into UTF8Strings - (in violation of RFC3280) and can't or wont issue name rollover - certificates. - [Steve Henson] - - *) Make an explicit check during certificate validation to see that - the CA setting in each certificate on the chain is correct. As a - side effect always do the following basic checks on extensions, - not just when there's an associated purpose to the check: - - - if there is an unhandled critical extension (unless the user - has chosen to ignore this fault) - - if the path length has been exceeded (if one is set at all) - - that certain extensions fit the associated purpose (if one has - been given) - [Richard Levitte] - - Changes between 0.9.7d and 0.9.7e [25 Oct 2004] - - *) Avoid a race condition when CRLs are checked in a multi threaded - environment. This would happen due to the reordering of the revoked - entries during signature checking and serial number lookup. Now the - encoding is cached and the serial number sort performed under a lock. - Add new STACK function sk_is_sorted(). - [Steve Henson] - - *) Add Delta CRL to the extension code. - [Steve Henson] - - *) Various fixes to s3_pkt.c so alerts are sent properly. - [David Holmes <d.holmes@f5.com>] - - *) Reduce the chances of duplicate issuer name and serial numbers (in - violation of RFC3280) using the OpenSSL certificate creation utilities. - This is done by creating a random 64 bit value for the initial serial - number when a serial number file is created or when a self signed - certificate is created using 'openssl req -x509'. The initial serial - number file is created using 'openssl x509 -next_serial' in CA.pl - rather than being initialized to 1. - [Steve Henson] - - Changes between 0.9.7c and 0.9.7d [17 Mar 2004] - - *) Fix null-pointer assignment in do_change_cipher_spec() revealed - by using the Codenomicon TLS Test Tool (CVE-2004-0079) - [Joe Orton, Steve Henson] - - *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites - (CVE-2004-0112) - [Joe Orton, Steve Henson] - - *) Make it possible to have multiple active certificates with the same - subject in the CA index file. This is done only if the keyword - 'unique_subject' is set to 'no' in the main CA section (default - if 'CA_default') of the configuration file. The value is saved - with the database itself in a separate index attribute file, - named like the index file with '.attr' appended to the name. - [Richard Levitte] - - *) X509 verify fixes. Disable broken certificate workarounds when - X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if - keyUsage extension present. Don't accept CRLs with unhandled critical - extensions: since verify currently doesn't process CRL extensions this - rejects a CRL with *any* critical extensions. Add new verify error codes - for these cases. - [Steve Henson] - - *) When creating an OCSP nonce use an OCTET STRING inside the extnValue. - A clarification of RFC2560 will require the use of OCTET STRINGs and - some implementations cannot handle the current raw format. Since OpenSSL - copies and compares OCSP nonces as opaque blobs without any attempt at - parsing them this should not create any compatibility issues. - [Steve Henson] - - *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when - calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without - this HMAC (and other) operations are several times slower than OpenSSL - < 0.9.7. - [Steve Henson] - - *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). - [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] - - *) Use the correct content when signing type "other". - [Steve Henson] - - Changes between 0.9.7b and 0.9.7c [30 Sep 2003] - - *) Fix various bugs revealed by running the NISCC test suite: - - Stop out of bounds reads in the ASN1 code when presented with - invalid tags (CVE-2003-0543 and CVE-2003-0544). - - Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545). - - If verify callback ignores invalid public key errors don't try to check - certificate signature with the NULL public key. - - [Steve Henson] - - *) New -ignore_err option in ocsp application to stop the server - exiting on the first error in a request. - [Steve Henson] - - *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate - if the server requested one: as stated in TLS 1.0 and SSL 3.0 - specifications. - [Steve Henson] - - *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional - extra data after the compression methods not only for TLS 1.0 - but also for SSL 3.0 (as required by the specification). - [Bodo Moeller; problem pointed out by Matthias Loepfe] - - *) Change X509_certificate_type() to mark the key as exported/exportable - when it's 512 *bits* long, not 512 bytes. - [Richard Levitte] - - *) Change AES_cbc_encrypt() so it outputs exact multiple of - blocks during encryption. - [Richard Levitte] - - *) Various fixes to base64 BIO and non blocking I/O. On write - flushes were not handled properly if the BIO retried. On read - data was not being buffered properly and had various logic bugs. - This also affects blocking I/O when the data being decoded is a - certain size. - [Steve Henson] - - *) Various S/MIME bugfixes and compatibility changes: - output correct application/pkcs7 MIME type if - PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. - Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening - of files as .eml work). Correctly handle very long lines in MIME - parser. - [Steve Henson] - - Changes between 0.9.7a and 0.9.7b [10 Apr 2003] - - *) Countermeasure against the Klima-Pokorny-Rosa extension of - Bleichbacher's attack on PKCS #1 v1.5 padding: treat - a protocol version number mismatch like a decryption error - in ssl3_get_client_key_exchange (ssl/s3_srvr.c). - [Bodo Moeller] - - *) Turn on RSA blinding by default in the default implementation - to avoid a timing attack. Applications that don't want it can call - RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. - They would be ill-advised to do so in most cases. - [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] - - *) Change RSA blinding code so that it works when the PRNG is not - seeded (in this case, the secret RSA exponent is abused as - an unpredictable seed -- if it is not unpredictable, there - is no point in blinding anyway). Make RSA blinding thread-safe - by remembering the creator's thread ID in rsa->blinding and - having all other threads use local one-time blinding factors - (this requires more computation than sharing rsa->blinding, but - avoids excessive locking; and if an RSA object is not shared - between threads, blinding will still be very fast). - [Bodo Moeller] - - *) Fixed a typo bug that would cause ENGINE_set_default() to set an - ENGINE as defaults for all supported algorithms irrespective of - the 'flags' parameter. 'flags' is now honoured, so applications - should make sure they are passing it correctly. - [Geoff Thorpe] - - *) Target "mingw" now allows native Windows code to be generated in - the Cygwin environment as well as with the MinGW compiler. - [Ulf Moeller] - - Changes between 0.9.7 and 0.9.7a [19 Feb 2003] - - *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked - via timing by performing a MAC computation even if incorrrect - block cipher padding has been found. This is a countermeasure - against active attacks where the attacker has to distinguish - between bad padding and a MAC verification error. (CVE-2003-0078) - - [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), - Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and - Martin Vuagnoux (EPFL, Ilion)] - - *) Make the no-err option work as intended. The intention with no-err - is not to have the whole error stack handling routines removed from - libcrypto, it's only intended to remove all the function name and - reason texts, thereby removing some of the footprint that may not - be interesting if those errors aren't displayed anyway. - - NOTE: it's still possible for any application or module to have it's - own set of error texts inserted. The routines are there, just not - used by default when no-err is given. - [Richard Levitte] - - *) Add support for FreeBSD on IA64. - [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454] - - *) Adjust DES_cbc_cksum() so it returns the same value as the MIT - Kerberos function mit_des_cbc_cksum(). Before this change, - the value returned by DES_cbc_cksum() was like the one from - mit_des_cbc_cksum(), except the bytes were swapped. - [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte] - - *) Allow an application to disable the automatic SSL chain building. - Before this a rather primitive chain build was always performed in - ssl3_output_cert_chain(): an application had no way to send the - correct chain if the automatic operation produced an incorrect result. - - Now the chain builder is disabled if either: - - 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). - - 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. - - The reasoning behind this is that an application would not want the - auto chain building to take place if extra chain certificates are - present and it might also want a means of sending no additional - certificates (for example the chain has two certificates and the - root is omitted). - [Steve Henson] - - *) Add the possibility to build without the ENGINE framework. - [Steven Reddie <smr@essemer.com.au> via Richard Levitte] - - *) Under Win32 gmtime() can return NULL: check return value in - OPENSSL_gmtime(). Add error code for case where gmtime() fails. - [Steve Henson] - - *) DSA routines: under certain error conditions uninitialized BN objects - could be freed. Solution: make sure initialization is performed early - enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, - Nils Larsch <nla@trustcenter.de> via PR#459) - [Lutz Jaenicke] - - *) Another fix for SSLv2 session ID handling: the session ID was incorrectly - checked on reconnect on the client side, therefore session resumption - could still fail with a "ssl session id is different" error. This - behaviour is masked when SSL_OP_ALL is used due to - SSL_OP_MICROSOFT_SESS_ID_BUG being set. - Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as - followup to PR #377. - [Lutz Jaenicke] - - *) IA-32 assembler support enhancements: unified ELF targets, support - for SCO/Caldera platforms, fix for Cygwin shared build. - [Andy Polyakov] - - *) Add support for FreeBSD on sparc64. As a consequence, support for - FreeBSD on non-x86 processors is separate from x86 processors on - the config script, much like the NetBSD support. - [Richard Levitte & Kris Kennaway <kris@obsecurity.org>] - - Changes between 0.9.6h and 0.9.7 [31 Dec 2002] - - [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after - OpenSSL 0.9.7.] - - *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED - code (06) was taken as the first octet of the session ID and the last - octet was ignored consequently. As a result SSLv2 client side session - caching could not have worked due to the session ID mismatch between - client and server. - Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as - PR #377. - [Lutz Jaenicke] - - *) Change the declaration of needed Kerberos libraries to use EX_LIBS - instead of the special (and badly supported) LIBKRB5. LIBKRB5 is - removed entirely. - [Richard Levitte] - - *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it - seems that in spite of existing for more than a year, many application - author have done nothing to provide the necessary callbacks, which - means that this particular engine will not work properly anywhere. - This is a very unfortunate situation which forces us, in the name - of usability, to give the hw_ncipher.c a static lock, which is part - of libcrypto. - NOTE: This is for the 0.9.7 series ONLY. This hack will never - appear in 0.9.8 or later. We EXPECT application authors to have - dealt properly with this when 0.9.8 is released (unless we actually - make such changes in the libcrypto locking code that changes will - have to be made anyway). - [Richard Levitte] - - *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content - octets have been read, EOF or an error occurs. Without this change - some truncated ASN1 structures will not produce an error. - [Steve Henson] - - *) Disable Heimdal support, since it hasn't been fully implemented. - Still give the possibility to force the use of Heimdal, but with - warnings and a request that patches get sent to openssl-dev. - [Richard Levitte] - - *) Add the VC-CE target, introduce the WINCE sysname, and add - INSTALL.WCE and appropriate conditionals to make it build. - [Steven Reddie <smr@essemer.com.au> via Richard Levitte] - - *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and - cygssl-x.y.z.dll, where x, y and z are the major, minor and - edit numbers of the version. - [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] - - *) Introduce safe string copy and catenation functions - (BUF_strlcpy() and BUF_strlcat()). - [Ben Laurie (CHATS) and Richard Levitte] - - *) Avoid using fixed-size buffers for one-line DNs. - [Ben Laurie (CHATS)] - - *) Add BUF_MEM_grow_clean() to avoid information leakage when - resizing buffers containing secrets, and use where appropriate. - [Ben Laurie (CHATS)] - - *) Avoid using fixed size buffers for configuration file location. - [Ben Laurie (CHATS)] - - *) Avoid filename truncation for various CA files. - [Ben Laurie (CHATS)] - - *) Use sizeof in preference to magic numbers. - [Ben Laurie (CHATS)] - - *) Avoid filename truncation in cert requests. - [Ben Laurie (CHATS)] - - *) Add assertions to check for (supposedly impossible) buffer - overflows. - [Ben Laurie (CHATS)] - - *) Don't cache truncated DNS entries in the local cache (this could - potentially lead to a spoofing attack). - [Ben Laurie (CHATS)] - - *) Fix various buffers to be large enough for hex/decimal - representations in a platform independent manner. - [Ben Laurie (CHATS)] - - *) Add CRYPTO_realloc_clean() to avoid information leakage when - resizing buffers containing secrets, and use where appropriate. - [Ben Laurie (CHATS)] - - *) Add BIO_indent() to avoid much slightly worrying code to do - indents. - [Ben Laurie (CHATS)] - - *) Convert sprintf()/BIO_puts() to BIO_printf(). - [Ben Laurie (CHATS)] - - *) buffer_gets() could terminate with the buffer only half - full. Fixed. - [Ben Laurie (CHATS)] - - *) Add assertions to prevent user-supplied crypto functions from - overflowing internal buffers by having large block sizes, etc. - [Ben Laurie (CHATS)] - - *) New OPENSSL_assert() macro (similar to assert(), but enabled - unconditionally). - [Ben Laurie (CHATS)] - - *) Eliminate unused copy of key in RC4. - [Ben Laurie (CHATS)] - - *) Eliminate unused and incorrectly sized buffers for IV in pem.h. - [Ben Laurie (CHATS)] - - *) Fix off-by-one error in EGD path. - [Ben Laurie (CHATS)] - - *) If RANDFILE path is too long, ignore instead of truncating. - [Ben Laurie (CHATS)] - - *) Eliminate unused and incorrectly sized X.509 structure - CBCParameter. - [Ben Laurie (CHATS)] - - *) Eliminate unused and dangerous function knumber(). - [Ben Laurie (CHATS)] - - *) Eliminate unused and dangerous structure, KSSL_ERR. - [Ben Laurie (CHATS)] - - *) Protect against overlong session ID context length in an encoded - session object. Since these are local, this does not appear to be - exploitable. - [Ben Laurie (CHATS)] - - *) Change from security patch (see 0.9.6e below) that did not affect - the 0.9.6 release series: - - Remote buffer overflow in SSL3 protocol - an attacker could - supply an oversized master key in Kerberos-enabled versions. - (CVE-2002-0657) - [Ben Laurie (CHATS)] - - *) Change the SSL kerb5 codes to match RFC 2712. - [Richard Levitte] - - *) Make -nameopt work fully for req and add -reqopt switch. - [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson] - - *) The "block size" for block ciphers in CFB and OFB mode should be 1. - [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>] - - *) Make sure tests can be performed even if the corresponding algorithms - have been removed entirely. This was also the last step to make - OpenSSL compilable with DJGPP under all reasonable conditions. - [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>] - - *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT - to allow version independent disabling of normally unselected ciphers, - which may be activated as a side-effect of selecting a single cipher. - - (E.g., cipher list string "RSA" enables ciphersuites that are left - out of "ALL" because they do not provide symmetric encryption. - "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) - [Lutz Jaenicke, Bodo Moeller] - - *) Add appropriate support for separate platform-dependent build - directories. The recommended way to make a platform-dependent - build directory is the following (tested on Linux), maybe with - some local tweaks: - - # Place yourself outside of the OpenSSL source tree. In - # this example, the environment variable OPENSSL_SOURCE - # is assumed to contain the absolute OpenSSL source directory. - mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" - cd objtree/"`uname -s`-`uname -r`-`uname -m`" - (cd $OPENSSL_SOURCE; find . -type f) | while read F; do - mkdir -p `dirname $F` - ln -s $OPENSSL_SOURCE/$F $F - done - - To be absolutely sure not to disturb the source tree, a "make clean" - is a good thing. If it isn't successfull, don't worry about it, - it probably means the source directory is very clean. - [Richard Levitte] - - *) Make sure any ENGINE control commands make local copies of string - pointers passed to them whenever necessary. Otherwise it is possible - the caller may have overwritten (or deallocated) the original string - data when a later ENGINE operation tries to use the stored values. - [Götz Babin-Ebell <babinebell@trustcenter.de>] - - *) Improve diagnostics in file reading and command-line digests. - [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>] - - *) Add AES modes CFB and OFB to the object database. Correct an - error in AES-CFB decryption. - [Richard Levitte] - - *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this - allows existing EVP_CIPHER_CTX structures to be reused after - calling EVP_*Final(). This behaviour is used by encryption - BIOs and some applications. This has the side effect that - applications must explicitly clean up cipher contexts with - EVP_CIPHER_CTX_cleanup() or they will leak memory. - [Steve Henson] - - *) Check the values of dna and dnb in bn_mul_recursive before calling - bn_mul_comba (a non zero value means the a or b arrays do not contain - n2 elements) and fallback to bn_mul_normal if either is not zero. - [Steve Henson] - - *) Fix escaping of non-ASCII characters when using the -subj option - of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) - [Lutz Jaenicke] - - *) Make object definitions compliant to LDAP (RFC2256): SN is the short - form for "surname", serialNumber has no short form. - Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; - therefore remove "mail" short name for "internet 7". - The OID for unique identifiers in X509 certificates is - x500UniqueIdentifier, not uniqueIdentifier. - Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) - [Lutz Jaenicke] - - *) Add an "init" command to the ENGINE config module and auto initialize - ENGINEs. Without any "init" command the ENGINE will be initialized - after all ctrl commands have been executed on it. If init=1 the - ENGINE is initailized at that point (ctrls before that point are run - on the uninitialized ENGINE and after on the initialized one). If - init=0 then the ENGINE will not be iniatialized at all. - [Steve Henson] - - *) Fix the 'app_verify_callback' interface so that the user-defined - argument is actually passed to the callback: In the - SSL_CTX_set_cert_verify_callback() prototype, the callback - declaration has been changed from - int (*cb)() - into - int (*cb)(X509_STORE_CTX *,void *); - in ssl_verify_cert_chain (ssl/ssl_cert.c), the call - i=s->ctx->app_verify_callback(&ctx) - has been changed into - i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). - - To update applications using SSL_CTX_set_cert_verify_callback(), - a dummy argument can be added to their callback functions. - [D. K. Smetters <smetters@parc.xerox.com>] - - *) Added the '4758cca' ENGINE to support IBM 4758 cards. - [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe] - - *) Add and OPENSSL_LOAD_CONF define which will cause - OpenSSL_add_all_algorithms() to load the openssl.cnf config file. - This allows older applications to transparently support certain - OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. - Two new functions OPENSSL_add_all_algorithms_noconf() which will never - load the config file and OPENSSL_add_all_algorithms_conf() which will - always load it have also been added. - [Steve Henson] - - *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. - Adjust NIDs and EVP layer. - [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] - - *) Config modules support in openssl utility. - - Most commands now load modules from the config file, - though in a few (such as version) this isn't done - because it couldn't be used for anything. - - In the case of ca and req the config file used is - the same as the utility itself: that is the -config - command line option can be used to specify an - alternative file. - [Steve Henson] - - *) Move default behaviour from OPENSSL_config(). If appname is NULL - use "openssl_conf" if filename is NULL use default openssl config file. - [Steve Henson] - - *) Add an argument to OPENSSL_config() to allow the use of an alternative - config section name. Add a new flag to tolerate a missing config file - and move code to CONF_modules_load_file(). - [Steve Henson] - - *) Support for crypto accelerator cards from Accelerated Encryption - Processing, www.aep.ie. (Use engine 'aep') - The support was copied from 0.9.6c [engine] and adapted/corrected - to work with the new engine framework. - [AEP Inc. and Richard Levitte] - - *) Support for SureWare crypto accelerator cards from Baltimore - Technologies. (Use engine 'sureware') - The support was copied from 0.9.6c [engine] and adapted - to work with the new engine framework. - [Richard Levitte] - - *) Have the CHIL engine fork-safe (as defined by nCipher) and actually - make the newer ENGINE framework commands for the CHIL engine work. - [Toomas Kiisk <vix@cyber.ee> and Richard Levitte] - - *) Make it possible to produce shared libraries on ReliantUNIX. - [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte] - - *) Add the configuration target debug-linux-ppro. - Make 'openssl rsa' use the general key loading routines - implemented in apps.c, and make those routines able to - handle the key format FORMAT_NETSCAPE and the variant - FORMAT_IISSGC. - [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] - - *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). - [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] - - *) Add -keyform to rsautl, and document -engine. - [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>] - - *) Change BIO_new_file (crypto/bio/bss_file.c) to use new - BIO_R_NO_SUCH_FILE error code rather than the generic - ERR_R_SYS_LIB error code if fopen() fails with ENOENT. - [Ben Laurie] - - *) Add new functions - ERR_peek_last_error - ERR_peek_last_error_line - ERR_peek_last_error_line_data. - These are similar to - ERR_peek_error - ERR_peek_error_line - ERR_peek_error_line_data, - but report on the latest error recorded rather than the first one - still in the error queue. - [Ben Laurie, Bodo Moeller] - - *) default_algorithms option in ENGINE config module. This allows things - like: - default_algorithms = ALL - default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS - [Steve Henson] - - *) Prelminary ENGINE config module. - [Steve Henson] - - *) New experimental application configuration code. - [Steve Henson] - - *) Change the AES code to follow the same name structure as all other - symmetric ciphers, and behave the same way. Move everything to - the directory crypto/aes, thereby obsoleting crypto/rijndael. - [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] - - *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. - [Ben Laurie and Theo de Raadt] - - *) Add option to output public keys in req command. - [Massimiliano Pala madwolf@openca.org] - - *) Use wNAFs in EC_POINTs_mul() for improved efficiency - (up to about 10% better than before for P-192 and P-224). - [Bodo Moeller] - - *) New functions/macros - - SSL_CTX_set_msg_callback(ctx, cb) - SSL_CTX_set_msg_callback_arg(ctx, arg) - SSL_set_msg_callback(ssl, cb) - SSL_set_msg_callback_arg(ssl, arg) - - to request calling a callback function - - void cb(int write_p, int version, int content_type, - const void *buf, size_t len, SSL *ssl, void *arg) - - whenever a protocol message has been completely received - (write_p == 0) or sent (write_p == 1). Here 'version' is the - protocol version according to which the SSL library interprets - the current protocol message (SSL2_VERSION, SSL3_VERSION, or - TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or - the content type as defined in the SSL 3.0/TLS 1.0 protocol - specification (change_cipher_spec(20), alert(21), handshake(22)). - 'buf' and 'len' point to the actual message, 'ssl' to the - SSL object, and 'arg' is the application-defined value set by - SSL[_CTX]_set_msg_callback_arg(). - - 'openssl s_client' and 'openssl s_server' have new '-msg' options - to enable a callback that displays all protocol messages. - [Bodo Moeller] - - *) Change the shared library support so shared libraries are built as - soon as the corresponding static library is finished, and thereby get - openssl and the test programs linked against the shared library. - This still only happens when the keyword "shard" has been given to - the configuration scripts. - - NOTE: shared library support is still an experimental thing, and - backward binary compatibility is still not guaranteed. - ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte] - - *) Add support for Subject Information Access extension. - [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] - - *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero - additional bytes when new memory had to be allocated, not just - when reusing an existing buffer. - [Bodo Moeller] - - *) New command line and configuration option 'utf8' for the req command. - This allows field values to be specified as UTF8 strings. - [Steve Henson] - - *) Add -multi and -mr options to "openssl speed" - giving multiple parallel - runs for the former and machine-readable output for the latter. - [Ben Laurie] - - *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion - of the e-mail address in the DN (i.e., it will go into a certificate - extension only). The new configuration file option 'email_in_dn = no' - has the same effect. - [Massimiliano Pala madwolf@openca.org] - - *) Change all functions with names starting with des_ to be starting - with DES_ instead. Add wrappers that are compatible with libdes, - but are named _ossl_old_des_*. Finally, add macros that map the - des_* symbols to the corresponding _ossl_old_des_* if libdes - compatibility is desired. If OpenSSL 0.9.6c compatibility is - desired, the des_* symbols will be mapped to DES_*, with one - exception. - - Since we provide two compatibility mappings, the user needs to - define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes - compatibility is desired. The default (i.e., when that macro - isn't defined) is OpenSSL 0.9.6c compatibility. - - There are also macros that enable and disable the support of old - des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT - and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those - are defined, the default will apply: to support the old des routines. - - In either case, one must include openssl/des.h to get the correct - definitions. Do not try to just include openssl/des_old.h, that - won't work. - - NOTE: This is a major break of an old API into a new one. Software - authors are encouraged to switch to the DES_ style functions. Some - time in the future, des_old.h and the libdes compatibility functions - will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the - default), and then completely removed. - [Richard Levitte] - - *) Test for certificates which contain unsupported critical extensions. - If such a certificate is found during a verify operation it is - rejected by default: this behaviour can be overridden by either - handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or - by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function - X509_supported_extension() has also been added which returns 1 if a - particular extension is supported. - [Steve Henson] - - *) Modify the behaviour of EVP cipher functions in similar way to digests - to retain compatibility with existing code. - [Steve Henson] - - *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain - compatibility with existing code. In particular the 'ctx' parameter does - not have to be to be initialized before the call to EVP_DigestInit() and - it is tidied up after a call to EVP_DigestFinal(). New function - EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function - EVP_MD_CTX_copy() changed to not require the destination to be - initialized valid and new function EVP_MD_CTX_copy_ex() added which - requires the destination to be valid. - - Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), - EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). - [Steve Henson] - - *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it - so that complete 'Handshake' protocol structures are kept in memory - instead of overwriting 'msg_type' and 'length' with 'body' data. - [Bodo Moeller] - - *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. - [Massimo Santin via Richard Levitte] - - *) Major restructuring to the underlying ENGINE code. This includes - reduction of linker bloat, separation of pure "ENGINE" manipulation - (initialisation, etc) from functionality dealing with implementations - of specific crypto iterfaces. This change also introduces integrated - support for symmetric ciphers and digest implementations - so ENGINEs - can now accelerate these by providing EVP_CIPHER and EVP_MD - implementations of their own. This is detailed in crypto/engine/README - as it couldn't be adequately described here. However, there are a few - API changes worth noting - some RSA, DSA, DH, and RAND functions that - were changed in the original introduction of ENGINE code have now - reverted back - the hooking from this code to ENGINE is now a good - deal more passive and at run-time, operations deal directly with - RSA_METHODs, DSA_METHODs (etc) as they did before, rather than - dereferencing through an ENGINE pointer any more. Also, the ENGINE - functions dealing with BN_MOD_EXP[_CRT] handlers have been removed - - they were not being used by the framework as there is no concept of a - BIGNUM_METHOD and they could not be generalised to the new - 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, - ENGINE_cpy() has been removed as it cannot be consistently defined in - the new code. - [Geoff Thorpe] - - *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. - [Steve Henson] - - *) Change mkdef.pl to sort symbols that get the same entry number, - and make sure the automatically generated functions ERR_load_* - become part of libeay.num as well. - [Richard Levitte] - - *) New function SSL_renegotiate_pending(). This returns true once - renegotiation has been requested (either SSL_renegotiate() call - or HelloRequest/ClientHello receveived from the peer) and becomes - false once a handshake has been completed. - (For servers, SSL_renegotiate() followed by SSL_do_handshake() - sends a HelloRequest, but does not ensure that a handshake takes - place. SSL_renegotiate_pending() is useful for checking if the - client has followed the request.) - [Bodo Moeller] - - *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. - By default, clients may request session resumption even during - renegotiation (if session ID contexts permit); with this option, - session resumption is possible only in the first handshake. - - SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes - more bits available for options that should not be part of - SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). - [Bodo Moeller] - - *) Add some demos for certificate and certificate request creation. - [Steve Henson] - - *) Make maximum certificate chain size accepted from the peer application - settable (SSL*_get/set_max_cert_list()), as proposed by - "Douglas E. Engert" <deengert@anl.gov>. - [Lutz Jaenicke] - - *) Add support for shared libraries for Unixware-7 - (Boyd Lynn Gerber <gerberb@zenez.com>). - [Lutz Jaenicke] - - *) Add a "destroy" handler to ENGINEs that allows structural cleanup to - be done prior to destruction. Use this to unload error strings from - ENGINEs that load their own error strings. NB: This adds two new API - functions to "get" and "set" this destroy handler in an ENGINE. - [Geoff Thorpe] - - *) Alter all existing ENGINE implementations (except "openssl" and - "openbsd") to dynamically instantiate their own error strings. This - makes them more flexible to be built both as statically-linked ENGINEs - and self-contained shared-libraries loadable via the "dynamic" ENGINE. - Also, add stub code to each that makes building them as self-contained - shared-libraries easier (see README.ENGINE). - [Geoff Thorpe] - - *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE - implementations into applications that are completely implemented in - self-contained shared-libraries. The "dynamic" ENGINE exposes control - commands that can be used to configure what shared-library to load and - to control aspects of the way it is handled. Also, made an update to - the README.ENGINE file that brings its information up-to-date and - provides some information and instructions on the "dynamic" ENGINE - (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). - [Geoff Thorpe] - - *) Make it possible to unload ranges of ERR strings with a new - "ERR_unload_strings" function. - [Geoff Thorpe] - - *) Add a copy() function to EVP_MD. - [Ben Laurie] - - *) Make EVP_MD routines take a context pointer instead of just the - md_data void pointer. - [Ben Laurie] - - *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates - that the digest can only process a single chunk of data - (typically because it is provided by a piece of - hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application - is only going to provide a single chunk of data, and hence the - framework needn't accumulate the data for oneshot drivers. - [Ben Laurie] - - *) As with "ERR", make it possible to replace the underlying "ex_data" - functions. This change also alters the storage and management of global - ex_data state - it's now all inside ex_data.c and all "class" code (eg. - RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class - index counters. The API functions that use this state have been changed - to take a "class_index" rather than pointers to the class's local STACK - and counter, and there is now an API function to dynamically create new - classes. This centralisation allows us to (a) plug a lot of the - thread-safety problems that existed, and (b) makes it possible to clean - up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) - such data would previously have always leaked in application code and - workarounds were in place to make the memory debugging turn a blind eye - to it. Application code that doesn't use this new function will still - leak as before, but their memory debugging output will announce it now - rather than letting it slide. - - Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change - induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now - has a return value to indicate success or failure. - [Geoff Thorpe] - - *) Make it possible to replace the underlying "ERR" functions such that the - global state (2 LHASH tables and 2 locks) is only used by the "default" - implementation. This change also adds two functions to "get" and "set" - the implementation prior to it being automatically set the first time - any other ERR function takes place. Ie. an application can call "get", - pass the return value to a module it has just loaded, and that module - can call its own "set" function using that value. This means the - module's "ERR" operations will use (and modify) the error state in the - application and not in its own statically linked copy of OpenSSL code. - [Geoff Thorpe] - - *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment - reference counts. This performs normal REF_PRINT/REF_CHECK macros on - the operation, and provides a more encapsulated way for external code - (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code - to use these functions rather than manually incrementing the counts. - - Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". - [Geoff Thorpe] - - *) Add EVP test program. - [Ben Laurie] - - *) Add symmetric cipher support to ENGINE. Expect the API to change! - [Ben Laurie] - - *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() - X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), - X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). - These allow a CRL to be built without having to access X509_CRL fields - directly. Modify 'ca' application to use new functions. - [Steve Henson] - - *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended - bug workarounds. Rollback attack detection is a security feature. - The problem will only arise on OpenSSL servers when TLSv1 is not - available (sslv3_server_method() or SSL_OP_NO_TLSv1). - Software authors not wanting to support TLSv1 will have special reasons - for their choice and can explicitly enable this option. - [Bodo Moeller, Lutz Jaenicke] - - *) Rationalise EVP so it can be extended: don't include a union of - cipher/digest structures, add init/cleanup functions for EVP_MD_CTX - (similar to those existing for EVP_CIPHER_CTX). - Usage example: - - EVP_MD_CTX md; - - EVP_MD_CTX_init(&md); /* new function call */ - EVP_DigestInit(&md, EVP_sha1()); - EVP_DigestUpdate(&md, in, len); - EVP_DigestFinal(&md, out, NULL); - EVP_MD_CTX_cleanup(&md); /* new function call */ - - [Ben Laurie] - - *) Make DES key schedule conform to the usual scheme, as well as - correcting its structure. This means that calls to DES functions - now have to pass a pointer to a des_key_schedule instead of a - plain des_key_schedule (which was actually always a pointer - anyway): E.g., - - des_key_schedule ks; - - des_set_key_checked(..., &ks); - des_ncbc_encrypt(..., &ks, ...); - - (Note that a later change renames 'des_...' into 'DES_...'.) - [Ben Laurie] - - *) Initial reduction of linker bloat: the use of some functions, such as - PEM causes large amounts of unused functions to be linked in due to - poor organisation. For example pem_all.c contains every PEM function - which has a knock on effect of linking in large amounts of (unused) - ASN1 code. Grouping together similar functions and splitting unrelated - functions prevents this. - [Steve Henson] - - *) Cleanup of EVP macros. - [Ben Laurie] - - *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the - correct _ecb suffix. - [Ben Laurie] - - *) Add initial OCSP responder support to ocsp application. The - revocation information is handled using the text based index - use by the ca application. The responder can either handle - requests generated internally, supplied in files (for example - via a CGI script) or using an internal minimal server. - [Steve Henson] - - *) Add configuration choices to get zlib compression for TLS. - [Richard Levitte] - - *) Changes to Kerberos SSL for RFC 2712 compliance: - 1. Implemented real KerberosWrapper, instead of just using - KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] - 2. Implemented optional authenticator field of KerberosWrapper. - - Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, - and authenticator structs; see crypto/krb5/. - - Generalized Kerberos calls to support multiple Kerberos libraries. - [Vern Staats <staatsvr@asc.hpc.mil>, - Jeffrey Altman <jaltman@columbia.edu> - via Richard Levitte] - - *) Cause 'openssl speed' to use fully hard-coded DSA keys as it - already does with RSA. testdsa.h now has 'priv_key/pub_key' - values for each of the key sizes rather than having just - parameters (and 'speed' generating keys each time). - [Geoff Thorpe] - - *) Speed up EVP routines. - Before: -encrypt -type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes -des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k -des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k -des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k -decrypt -des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k -des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k -des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k - After: -encrypt -des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k -decrypt -des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k - [Ben Laurie] - - *) Added the OS2-EMX target. - ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte] - - *) Rewrite apps to use NCONF routines instead of the old CONF. New functions - to support NCONF routines in extension code. New function CONF_set_nconf() - to allow functions which take an NCONF to also handle the old LHASH - structure: this means that the old CONF compatible routines can be - retained (in particular wrt extensions) without having to duplicate the - code. New function X509V3_add_ext_nconf_sk to add extensions to a stack. - [Steve Henson] - - *) Enhance the general user interface with mechanisms for inner control - and with possibilities to have yes/no kind of prompts. - [Richard Levitte] - - *) Change all calls to low level digest routines in the library and - applications to use EVP. Add missing calls to HMAC_cleanup() and - don't assume HMAC_CTX can be copied using memcpy(). - [Verdon Walker <VWalker@novell.com>, Steve Henson] - - *) Add the possibility to control engines through control names but with - arbitrary arguments instead of just a string. - Change the key loaders to take a UI_METHOD instead of a callback - function pointer. NOTE: this breaks binary compatibility with earlier - versions of OpenSSL [engine]. - Adapt the nCipher code for these new conditions and add a card insertion - callback. - [Richard Levitte] - - *) Enhance the general user interface with mechanisms to better support - dialog box interfaces, application-defined prompts, the possibility - to use defaults (for example default passwords from somewhere else) - and interrupts/cancellations. - [Richard Levitte] - - *) Tidy up PKCS#12 attribute handling. Add support for the CSP name - attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. - [Steve Henson] - - *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also - tidy up some unnecessarily weird code in 'sk_new()'). - [Geoff, reported by Diego Tartara <dtartara@novamens.com>] - - *) Change the key loading routines for ENGINEs to use the same kind - callback (pem_password_cb) as all other routines that need this - kind of callback. - [Richard Levitte] - - *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with - 256 bit (=32 byte) keys. Of course seeding with more entropy bytes - than this minimum value is recommended. - [Lutz Jaenicke] - - *) New random seeder for OpenVMS, using the system process statistics - that are easily reachable. - [Richard Levitte] - - *) Windows apparently can't transparently handle global - variables defined in DLLs. Initialisations such as: - - const ASN1_ITEM *it = &ASN1_INTEGER_it; - - wont compile. This is used by the any applications that need to - declare their own ASN1 modules. This was fixed by adding the option - EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly - needed for static libraries under Win32. - [Steve Henson] - - *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle - setting of purpose and trust fields. New X509_STORE trust and - purpose functions and tidy up setting in other SSL functions. - [Steve Henson] - - *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE - structure. These are inherited by X509_STORE_CTX when it is - initialised. This allows various defaults to be set in the - X509_STORE structure (such as flags for CRL checking and custom - purpose or trust settings) for functions which only use X509_STORE_CTX - internally such as S/MIME. - - Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and - trust settings if they are not set in X509_STORE. This allows X509_STORE - purposes and trust (in S/MIME for example) to override any set by default. - - Add command line options for CRL checking to smime, s_client and s_server - applications. - [Steve Henson] - - *) Initial CRL based revocation checking. If the CRL checking flag(s) - are set then the CRL is looked up in the X509_STORE structure and - its validity and signature checked, then if the certificate is found - in the CRL the verify fails with a revoked error. - - Various new CRL related callbacks added to X509_STORE_CTX structure. - - Command line options added to 'verify' application to support this. - - This needs some additional work, such as being able to handle multiple - CRLs with different times, extension based lookup (rather than just - by subject name) and ultimately more complete V2 CRL extension - handling. - [Steve Henson] - - *) Add a general user interface API (crypto/ui/). This is designed - to replace things like des_read_password and friends (backward - compatibility functions using this new API are provided). - The purpose is to remove prompting functions from the DES code - section as well as provide for prompting through dialog boxes in - a window system and the like. - [Richard Levitte] - - *) Add "ex_data" support to ENGINE so implementations can add state at a - per-structure level rather than having to store it globally. - [Geoff] - - *) Make it possible for ENGINE structures to be copied when retrieved by - ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. - This causes the "original" ENGINE structure to act like a template, - analogous to the RSA vs. RSA_METHOD type of separation. Because of this - operational state can be localised to each ENGINE structure, despite the - fact they all share the same "methods". New ENGINE structures returned in - this case have no functional references and the return value is the single - structural reference. This matches the single structural reference returned - by ENGINE_by_id() normally, when it is incremented on the pre-existing - ENGINE structure. - [Geoff] - - *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this - needs to match any other type at all we need to manually clear the - tag cache. - [Steve Henson] - - *) Changes to the "openssl engine" utility to include; - - verbosity levels ('-v', '-vv', and '-vvv') that provide information - about an ENGINE's available control commands. - - executing control commands from command line arguments using the - '-pre' and '-post' switches. '-post' is only used if '-t' is - specified and the ENGINE is successfully initialised. The syntax for - the individual commands are colon-separated, for example; - openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so - [Geoff] - - *) New dynamic control command support for ENGINEs. ENGINEs can now - declare their own commands (numbers), names (strings), descriptions, - and input types for run-time discovery by calling applications. A - subset of these commands are implicitly classed as "executable" - depending on their input type, and only these can be invoked through - the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this - can be based on user input, config files, etc). The distinction is - that "executable" commands cannot return anything other than a boolean - result and can only support numeric or string input, whereas some - discoverable commands may only be for direct use through - ENGINE_ctrl(), eg. supporting the exchange of binary data, function - pointers, or other custom uses. The "executable" commands are to - support parameterisations of ENGINE behaviour that can be - unambiguously defined by ENGINEs and used consistently across any - OpenSSL-based application. Commands have been added to all the - existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow - control over shared-library paths without source code alterations. - [Geoff] - - *) Changed all ENGINE implementations to dynamically allocate their - ENGINEs rather than declaring them statically. Apart from this being - necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, - this also allows the implementations to compile without using the - internal engine_int.h header. - [Geoff] - - *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a - 'const' value. Any code that should be able to modify a RAND_METHOD - should already have non-const pointers to it (ie. they should only - modify their own ones). - [Geoff] - - *) Made a variety of little tweaks to the ENGINE code. - - "atalla" and "ubsec" string definitions were moved from header files - to C code. "nuron" string definitions were placed in variables - rather than hard-coded - allowing parameterisation of these values - later on via ctrl() commands. - - Removed unused "#if 0"'d code. - - Fixed engine list iteration code so it uses ENGINE_free() to release - structural references. - - Constified the RAND_METHOD element of ENGINE structures. - - Constified various get/set functions as appropriate and added - missing functions (including a catch-all ENGINE_cpy that duplicates - all ENGINE values onto a new ENGINE except reference counts/state). - - Removed NULL parameter checks in get/set functions. Setting a method - or function to NULL is a way of cancelling out a previously set - value. Passing a NULL ENGINE parameter is just plain stupid anyway - and doesn't justify the extra error symbols and code. - - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for - flags from engine_int.h to engine.h. - - Changed prototypes for ENGINE handler functions (init(), finish(), - ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. - [Geoff] - - *) Implement binary inversion algorithm for BN_mod_inverse in addition - to the algorithm using long division. The binary algorithm can be - used only if the modulus is odd. On 32-bit systems, it is faster - only for relatively small moduli (roughly 20-30% for 128-bit moduli, - roughly 5-15% for 256-bit moduli), so we use it only for moduli - up to 450 bits. In 64-bit environments, the binary algorithm - appears to be advantageous for much longer moduli; here we use it - for moduli up to 2048 bits. - [Bodo Moeller] - - *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code - could not support the combine flag in choice fields. - [Steve Henson] - - *) Add a 'copy_extensions' option to the 'ca' utility. This copies - extensions from a certificate request to the certificate. - [Steve Henson] - - *) Allow multiple 'certopt' and 'nameopt' options to be separated - by commas. Add 'namopt' and 'certopt' options to the 'ca' config - file: this allows the display of the certificate about to be - signed to be customised, to allow certain fields to be included - or excluded and extension details. The old system didn't display - multicharacter strings properly, omitted fields not in the policy - and couldn't display additional details such as extensions. - [Steve Henson] - - *) Function EC_POINTs_mul for multiple scalar multiplication - of an arbitrary number of elliptic curve points - \sum scalars[i]*points[i], - optionally including the generator defined for the EC_GROUP: - scalar*generator + \sum scalars[i]*points[i]. - - EC_POINT_mul is a simple wrapper function for the typical case - that the point list has just one item (besides the optional - generator). - [Bodo Moeller] - - *) First EC_METHODs for curves over GF(p): - - EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr - operations and provides various method functions that can also - operate with faster implementations of modular arithmetic. - - EC_GFp_mont_method() reuses most functions that are part of - EC_GFp_simple_method, but uses Montgomery arithmetic. - - [Bodo Moeller; point addition and point doubling - implementation directly derived from source code provided by - Lenka Fibikova <fibikova@exp-math.uni-essen.de>] - - *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, - crypto/ec/ec_lib.c): - - Curves are EC_GROUP objects (with an optional group generator) - based on EC_METHODs that are built into the library. - - Points are EC_POINT objects based on EC_GROUP objects. - - Most of the framework would be able to handle curves over arbitrary - finite fields, but as there are no obvious types for fields other - than GF(p), some functions are limited to that for now. - [Bodo Moeller] - - *) Add the -HTTP option to s_server. It is similar to -WWW, but requires - that the file contains a complete HTTP response. - [Richard Levitte] - - *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl - change the def and num file printf format specifier from "%-40sXXX" - to "%-39s XXX". The latter will always guarantee a space after the - field while the former will cause them to run together if the field - is 40 of more characters long. - [Steve Henson] - - *) Constify the cipher and digest 'method' functions and structures - and modify related functions to take constant EVP_MD and EVP_CIPHER - pointers. - [Steve Henson] - - *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them - in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. - [Bodo Moeller] - - *) Modify EVP_Digest*() routines so they now return values. Although the - internal software routines can never fail additional hardware versions - might. - [Steve Henson] - - *) Clean up crypto/err/err.h and change some error codes to avoid conflicts: - - Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 - (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. - - ASN1 error codes - ERR_R_NESTED_ASN1_ERROR - ... - ERR_R_MISSING_ASN1_EOS - were 4 .. 9, conflicting with - ERR_LIB_RSA (= ERR_R_RSA_LIB) - ... - ERR_LIB_PEM (= ERR_R_PEM_LIB). - They are now 58 .. 63 (i.e., just below ERR_R_FATAL). - - Add new error code 'ERR_R_INTERNAL_ERROR'. - [Bodo Moeller] - - *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock - suffices. - [Bodo Moeller] - - *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This - sets the subject name for a new request or supersedes the - subject name in a given request. Formats that can be parsed are - 'CN=Some Name, OU=myOU, C=IT' - and - 'CN=Some Name/OU=myOU/C=IT'. - - Add options '-batch' and '-verbose' to 'openssl req'. - [Massimiliano Pala <madwolf@hackmasters.net>] - - *) Introduce the possibility to access global variables through - functions on platform were that's the best way to handle exporting - global variables in shared libraries. To enable this functionality, - one must configure with "EXPORT_VAR_AS_FN" or defined the C macro - "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter - is normally done by Configure or something similar). - - To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL - in the source file (foo.c) like this: - - OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; - OPENSSL_IMPLEMENT_GLOBAL(double,bar); - - To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL - and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: - - OPENSSL_DECLARE_GLOBAL(int,foo); - #define foo OPENSSL_GLOBAL_REF(foo) - OPENSSL_DECLARE_GLOBAL(double,bar); - #define bar OPENSSL_GLOBAL_REF(bar) - - The #defines are very important, and therefore so is including the - header file everywhere where the defined globals are used. - - The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition - of ASN.1 items, but that structure is a bit different. - - The largest change is in util/mkdef.pl which has been enhanced with - better and easier to understand logic to choose which symbols should - go into the Windows .def files as well as a number of fixes and code - cleanup (among others, algorithm keywords are now sorted - lexicographically to avoid constant rewrites). - [Richard Levitte] - - *) In BN_div() keep a copy of the sign of 'num' before writing the - result to 'rm' because if rm==num the value will be overwritten - and produce the wrong result if 'num' is negative: this caused - problems with BN_mod() and BN_nnmod(). - [Steve Henson] - - *) Function OCSP_request_verify(). This checks the signature on an - OCSP request and verifies the signer certificate. The signer - certificate is just checked for a generic purpose and OCSP request - trust settings. - [Steve Henson] - - *) Add OCSP_check_validity() function to check the validity of OCSP - responses. OCSP responses are prepared in real time and may only - be a few seconds old. Simply checking that the current time lies - between thisUpdate and nextUpdate max reject otherwise valid responses - caused by either OCSP responder or client clock inaccuracy. Instead - we allow thisUpdate and nextUpdate to fall within a certain period of - the current time. The age of the response can also optionally be - checked. Two new options -validity_period and -status_age added to - ocsp utility. - [Steve Henson] - - *) If signature or public key algorithm is unrecognized print out its - OID rather that just UNKNOWN. - [Steve Henson] - - *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and - OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate - ID to be generated from the issuer certificate alone which can then be - passed to OCSP_id_issuer_cmp(). - [Steve Henson] - - *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new - ASN1 modules to export functions returning ASN1_ITEM pointers - instead of the ASN1_ITEM structures themselves. This adds several - new macros which allow the underlying ASN1 function/structure to - be accessed transparently. As a result code should not use ASN1_ITEM - references directly (such as &X509_it) but instead use the relevant - macros (such as ASN1_ITEM_rptr(X509)). This option is to allow - use of the new ASN1 code on platforms where exporting structures - is problematical (for example in shared libraries) but exporting - functions returning pointers to structures is not. - [Steve Henson] - - *) Add support for overriding the generation of SSL/TLS session IDs. - These callbacks can be registered either in an SSL_CTX or per SSL. - The purpose of this is to allow applications to control, if they wish, - the arbitrary values chosen for use as session IDs, particularly as it - can be useful for session caching in multiple-server environments. A - command-line switch for testing this (and any client code that wishes - to use such a feature) has been added to "s_server". - [Geoff Thorpe, Lutz Jaenicke] - - *) Modify mkdef.pl to recognise and parse preprocessor conditionals - of the form '#if defined(...) || defined(...) || ...' and - '#if !defined(...) && !defined(...) && ...'. This also avoids - the growing number of special cases it was previously handling. - [Richard Levitte] - - *) Make all configuration macros available for application by making - sure they are available in opensslconf.h, by giving them names starting - with "OPENSSL_" to avoid conflicts with other packages and by making - sure e_os2.h will cover all platform-specific cases together with - opensslconf.h. - Additionally, it is now possible to define configuration/platform- - specific names (called "system identities"). In the C code, these - are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another - macro with the name beginning with "OPENSSL_SYS_", which is determined - from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on - what is available. - [Richard Levitte] - - *) New option -set_serial to 'req' and 'x509' this allows the serial - number to use to be specified on the command line. Previously self - signed certificates were hard coded with serial number 0 and the - CA options of 'x509' had to use a serial number in a file which was - auto incremented. - [Steve Henson] - - *) New options to 'ca' utility to support V2 CRL entry extensions. - Currently CRL reason, invalidity date and hold instruction are - supported. Add new CRL extensions to V3 code and some new objects. - [Steve Henson] - - *) New function EVP_CIPHER_CTX_set_padding() this is used to - disable standard block padding (aka PKCS#5 padding) in the EVP - API, which was previously mandatory. This means that the data is - not padded in any way and so the total length much be a multiple - of the block size, otherwise an error occurs. - [Steve Henson] - - *) Initial (incomplete) OCSP SSL support. - [Steve Henson] - - *) New function OCSP_parse_url(). This splits up a URL into its host, - port and path components: primarily to parse OCSP URLs. New -url - option to ocsp utility. - [Steve Henson] - - *) New nonce behavior. The return value of OCSP_check_nonce() now - reflects the various checks performed. Applications can decide - whether to tolerate certain situations such as an absent nonce - in a response when one was present in a request: the ocsp application - just prints out a warning. New function OCSP_add1_basic_nonce() - this is to allow responders to include a nonce in a response even if - the request is nonce-less. - [Steve Henson] - - *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are - skipped when using openssl x509 multiple times on a single input file, - e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs". - [Bodo Moeller] - - *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() - set string type: to handle setting ASN1_TIME structures. Fix ca - utility to correctly initialize revocation date of CRLs. - [Steve Henson] - - *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override - the clients preferred ciphersuites and rather use its own preferences. - Should help to work around M$ SGC (Server Gated Cryptography) bug in - Internet Explorer by ensuring unchanged hash method during stepup. - (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) - [Lutz Jaenicke] - - *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael - to aes and add a new 'exist' option to print out symbols that don't - appear to exist. - [Steve Henson] - - *) Additional options to ocsp utility to allow flags to be set and - additional certificates supplied. - [Steve Henson] - - *) Add the option -VAfile to 'openssl ocsp', so the user can give the - OCSP client a number of certificate to only verify the response - signature against. - [Richard Levitte] - - *) Update Rijndael code to version 3.0 and change EVP AES ciphers to - handle the new API. Currently only ECB, CBC modes supported. Add new - AES OIDs. - - Add TLS AES ciphersuites as described in RFC3268, "Advanced - Encryption Standard (AES) Ciphersuites for Transport Layer - Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were - not enabled by default and were not part of the "ALL" ciphersuite - alias because they were not yet official; they could be - explicitly requested by specifying the "AESdraft" ciphersuite - group alias. In the final release of OpenSSL 0.9.7, the group - alias is called "AES" and is part of "ALL".) - [Ben Laurie, Steve Henson, Bodo Moeller] - - *) New function OCSP_copy_nonce() to copy nonce value (if present) from - request to response. - [Steve Henson] - - *) Functions for OCSP responders. OCSP_request_onereq_count(), - OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() - extract information from a certificate request. OCSP_response_create() - creates a response and optionally adds a basic response structure. - OCSP_basic_add1_status() adds a complete single response to a basic - response and returns the OCSP_SINGLERESP structure just added (to allow - extensions to be included for example). OCSP_basic_add1_cert() adds a - certificate to a basic response and OCSP_basic_sign() signs a basic - response with various flags. New helper functions ASN1_TIME_check() - (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() - (converts ASN1_TIME to GeneralizedTime). - [Steve Henson] - - *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() - in a single operation. X509_get0_pubkey_bitstr() extracts the public_key - structure from a certificate. X509_pubkey_digest() digests the public_key - contents: this is used in various key identifiers. - [Steve Henson] - - *) Make sk_sort() tolerate a NULL argument. - [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>] - - *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates - passed by the function are trusted implicitly. If any of them signed the - response then it is assumed to be valid and is not verified. - [Steve Henson] - - *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT - to data. This was previously part of the PKCS7 ASN1 code. This - was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. - [Steve Henson, reported by Kenneth R. Robinette - <support@securenetterm.com>] - - *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 - routines: without these tracing memory leaks is very painful. - Fix leaks in PKCS12 and PKCS7 routines. - [Steve Henson] - - *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). - Previously it initialised the 'type' argument to V_ASN1_UTCTIME which - effectively meant GeneralizedTime would never be used. Now it - is initialised to -1 but X509_time_adj() now has to check the value - and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or - V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. - [Steve Henson, reported by Kenneth R. Robinette - <support@securenetterm.com>] - - *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously - result in a zero length in the ASN1_INTEGER structure which was - not consistent with the structure when d2i_ASN1_INTEGER() was used - and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() - to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() - where it did not print out a minus for negative ASN1_INTEGER. - [Steve Henson] - - *) Add summary printout to ocsp utility. The various functions which - convert status values to strings have been renamed to: - OCSP_response_status_str(), OCSP_cert_status_str() and - OCSP_crl_reason_str() and are no longer static. New options - to verify nonce values and to disable verification. OCSP response - printout format cleaned up. - [Steve Henson] - - *) Add additional OCSP certificate checks. These are those specified - in RFC2560. This consists of two separate checks: the CA of the - certificate being checked must either be the OCSP signer certificate - or the issuer of the OCSP signer certificate. In the latter case the - OCSP signer certificate must contain the OCSP signing extended key - usage. This check is performed by attempting to match the OCSP - signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash - in the OCSP_CERTID structures of the response. - [Steve Henson] - - *) Initial OCSP certificate verification added to OCSP_basic_verify() - and related routines. This uses the standard OpenSSL certificate - verify routines to perform initial checks (just CA validity) and - to obtain the certificate chain. Then additional checks will be - performed on the chain. Currently the root CA is checked to see - if it is explicitly trusted for OCSP signing. This is used to set - a root CA as a global signing root: that is any certificate that - chains to that CA is an acceptable OCSP signing certificate. - [Steve Henson] - - *) New '-extfile ...' option to 'openssl ca' for reading X.509v3 - extensions from a separate configuration file. - As when reading extensions from the main configuration file, - the '-extensions ...' option may be used for specifying the - section to use. - [Massimiliano Pala <madwolf@comune.modena.it>] - - *) New OCSP utility. Allows OCSP requests to be generated or - read. The request can be sent to a responder and the output - parsed, outputed or printed in text form. Not complete yet: - still needs to check the OCSP response validity. - [Steve Henson] - - *) New subcommands for 'openssl ca': - 'openssl ca -status <serial>' prints the status of the cert with - the given serial number (according to the index file). - 'openssl ca -updatedb' updates the expiry status of certificates - in the index file. - [Massimiliano Pala <madwolf@comune.modena.it>] - - *) New '-newreq-nodes' command option to CA.pl. This is like - '-newreq', but calls 'openssl req' with the '-nodes' option - so that the resulting key is not encrypted. - [Damien Miller <djm@mindrot.org>] - - *) New configuration for the GNU Hurd. - [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte] - - *) Initial code to implement OCSP basic response verify. This - is currently incomplete. Currently just finds the signer's - certificate and verifies the signature on the response. - [Steve Henson] - - *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in - value of OPENSSLDIR. This is available via the new '-d' option - to 'openssl version', and is also included in 'openssl version -a'. - [Bodo Moeller] - - *) Allowing defining memory allocation callbacks that will be given - file name and line number information in additional arguments - (a const char* and an int). The basic functionality remains, as - well as the original possibility to just replace malloc(), - realloc() and free() by functions that do not know about these - additional arguments. To register and find out the current - settings for extended allocation functions, the following - functions are provided: - - CRYPTO_set_mem_ex_functions - CRYPTO_set_locked_mem_ex_functions - CRYPTO_get_mem_ex_functions - CRYPTO_get_locked_mem_ex_functions - - These work the same way as CRYPTO_set_mem_functions and friends. - CRYPTO_get_[locked_]mem_functions now writes 0 where such an - extended allocation function is enabled. - Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where - a conventional allocation function is enabled. - [Richard Levitte, Bodo Moeller] - - *) Finish off removing the remaining LHASH function pointer casts. - There should no longer be any prototype-casting required when using - the LHASH abstraction, and any casts that remain are "bugs". See - the callback types and macros at the head of lhash.h for details - (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). - [Geoff Thorpe] - - *) Add automatic query of EGD sockets in RAND_poll() for the unix variant. - If /dev/[u]random devices are not available or do not return enough - entropy, EGD style sockets (served by EGD or PRNGD) will automatically - be queried. - The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and - /etc/entropy will be queried once each in this sequence, quering stops - when enough entropy was collected without querying more sockets. - [Lutz Jaenicke] - - *) Change the Unix RAND_poll() variant to be able to poll several - random devices, as specified by DEVRANDOM, until a sufficient amount - of data has been collected. We spend at most 10 ms on each file - (select timeout) and read in non-blocking mode. DEVRANDOM now - defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" - (previously it was just the string "/dev/urandom"), so on typical - platforms the 10 ms delay will never occur. - Also separate out the Unix variant to its own file, rand_unix.c. - For VMS, there's a currently-empty rand_vms.c. - [Richard Levitte] - - *) Move OCSP client related routines to ocsp_cl.c. These - provide utility functions which an application needing - to issue a request to an OCSP responder and analyse the - response will typically need: as opposed to those which an - OCSP responder itself would need which will be added later. - - OCSP_request_sign() signs an OCSP request with an API similar - to PKCS7_sign(). OCSP_response_status() returns status of OCSP - response. OCSP_response_get1_basic() extracts basic response - from response. OCSP_resp_find_status(): finds and extracts status - information from an OCSP_CERTID structure (which will be created - when the request structure is built). These are built from lower - level functions which work on OCSP_SINGLERESP structures but - wont normally be used unless the application wishes to examine - extensions in the OCSP response for example. - - Replace nonce routines with a pair of functions. - OCSP_request_add1_nonce() adds a nonce value and optionally - generates a random value. OCSP_check_nonce() checks the - validity of the nonce in an OCSP response. - [Steve Henson] - - *) Change function OCSP_request_add() to OCSP_request_add0_id(). - This doesn't copy the supplied OCSP_CERTID and avoids the - need to free up the newly created id. Change return type - to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. - This can then be used to add extensions to the request. - Deleted OCSP_request_new(), since most of its functionality - is now in OCSP_REQUEST_new() (and the case insensitive name - clash) apart from the ability to set the request name which - will be added elsewhere. - [Steve Henson] - - *) Update OCSP API. Remove obsolete extensions argument from - various functions. Extensions are now handled using the new - OCSP extension code. New simple OCSP HTTP function which - can be used to send requests and parse the response. - [Steve Henson] - - *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new - ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN - uses the special reorder version of SET OF to sort the attributes - and reorder them to match the encoded order. This resolves a long - standing problem: a verify on a PKCS7 structure just after signing - it used to fail because the attribute order did not match the - encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: - it uses the received order. This is necessary to tolerate some broken - software that does not order SET OF. This is handled by encoding - as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) - to produce the required SET OF. - [Steve Henson] - - *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and - OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header - files to get correct declarations of the ASN.1 item variables. - [Richard Levitte] - - *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many - PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: - asn1_check_tlen() would sometimes attempt to use 'ctx' when it was - NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). - New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant - ASN1_ITEM and no wrapper functions. - [Steve Henson] - - *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These - replace the old function pointer based I/O routines. Change most of - the *_d2i_bio() and *_d2i_fp() functions to use these. - [Steve Henson] - - *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor - lines, recognice more "algorithms" that can be deselected, and make - it complain about algorithm deselection that isn't recognised. - [Richard Levitte] - - *) New ASN1 functions to handle dup, sign, verify, digest, pack and - unpack operations in terms of ASN1_ITEM. Modify existing wrappers - to use new functions. Add NO_ASN1_OLD which can be set to remove - some old style ASN1 functions: this can be used to determine if old - code will still work when these eventually go away. - [Steve Henson] - - *) New extension functions for OCSP structures, these follow the - same conventions as certificates and CRLs. - [Steve Henson] - - *) New function X509V3_add1_i2d(). This automatically encodes and - adds an extension. Its behaviour can be customised with various - flags to append, replace or delete. Various wrappers added for - certifcates and CRLs. - [Steve Henson] - - *) Fix to avoid calling the underlying ASN1 print routine when - an extension cannot be parsed. Correct a typo in the - OCSP_SERVICELOC extension. Tidy up print OCSP format. - [Steve Henson] - - *) Make mkdef.pl parse some of the ASN1 macros and add apropriate - entries for variables. - [Steve Henson] - - *) Add functionality to apps/openssl.c for detecting locking - problems: As the program is single-threaded, all we have - to do is register a locking callback using an array for - storing which locks are currently held by the program. - [Bodo Moeller] - - *) Use a lock around the call to CRYPTO_get_ex_new_index() in - SSL_get_ex_data_X509_STORE_idx(), which is used in - ssl_verify_cert_chain() and thus can be called at any time - during TLS/SSL handshakes so that thread-safety is essential. - Unfortunately, the ex_data design is not at all suited - for multi-threaded use, so it probably should be abolished. - [Bodo Moeller] - - *) Added Broadcom "ubsec" ENGINE to OpenSSL. - [Broadcom, tweaked and integrated by Geoff Thorpe] - - *) Move common extension printing code to new function - X509V3_print_extensions(). Reorganise OCSP print routines and - implement some needed OCSP ASN1 functions. Add OCSP extensions. - [Steve Henson] - - *) New function X509_signature_print() to remove duplication in some - print routines. - [Steve Henson] - - *) Add a special meaning when SET OF and SEQUENCE OF flags are both - set (this was treated exactly the same as SET OF previously). This - is used to reorder the STACK representing the structure to match the - encoding. This will be used to get round a problem where a PKCS7 - structure which was signed could not be verified because the STACK - order did not reflect the encoded order. - [Steve Henson] - - *) Reimplement the OCSP ASN1 module using the new code. - [Steve Henson] - - *) Update the X509V3 code to permit the use of an ASN1_ITEM structure - for its ASN1 operations. The old style function pointers still exist - for now but they will eventually go away. - [Steve Henson] - - *) Merge in replacement ASN1 code from the ASN1 branch. This almost - completely replaces the old ASN1 functionality with a table driven - encoder and decoder which interprets an ASN1_ITEM structure describing - the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is - largely maintained. Almost all of the old asn1_mac.h macro based ASN1 - has also been converted to the new form. - [Steve Henson] - - *) Change BN_mod_exp_recp so that negative moduli are tolerated - (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set - so that BN_mod_exp_mont and BN_mod_exp_mont_word work - for negative moduli. - [Bodo Moeller] - - *) Fix BN_uadd and BN_usub: Always return non-negative results instead - of not touching the result's sign bit. - [Bodo Moeller] - - *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be - set. - [Bodo Moeller] - - *) Changed the LHASH code to use prototypes for callbacks, and created - macros to declare and implement thin (optionally static) functions - that provide type-safety and avoid function pointer casting for the - type-specific callbacks. - [Geoff Thorpe] - - *) Added Kerberos Cipher Suites to be used with TLS, as written in - RFC 2712. - [Veers Staats <staatsvr@asc.hpc.mil>, - Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte] - - *) Reformat the FAQ so the different questions and answers can be divided - in sections depending on the subject. - [Richard Levitte] - - *) Have the zlib compression code load ZLIB.DLL dynamically under - Windows. - [Richard Levitte] - - *) New function BN_mod_sqrt for computing square roots modulo a prime - (using the probabilistic Tonelli-Shanks algorithm unless - p == 3 (mod 4) or p == 5 (mod 8), which are cases that can - be handled deterministically). - [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] - - *) Make BN_mod_inverse faster by explicitly handling small quotients - in the Euclid loop. (Speed gain about 20% for small moduli [256 or - 512 bits], about 30% for larger ones [1024 or 2048 bits].) - [Bodo Moeller] - - *) New function BN_kronecker. - [Bodo Moeller] - - *) Fix BN_gcd so that it works on negative inputs; the result is - positive unless both parameters are zero. - Previously something reasonably close to an infinite loop was - possible because numbers could be growing instead of shrinking - in the implementation of Euclid's algorithm. - [Bodo Moeller] - - *) Fix BN_is_word() and BN_is_one() macros to take into account the - sign of the number in question. - - Fix BN_is_word(a,w) to work correctly for w == 0. - - The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) - because its test if the absolute value of 'a' equals 'w'. - Note that BN_abs_is_word does *not* handle w == 0 reliably; - it exists mostly for use in the implementations of BN_is_zero(), - BN_is_one(), and BN_is_word(). - [Bodo Moeller] - - *) New function BN_swap. - [Bodo Moeller] - - *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that - the exponentiation functions are more likely to produce reasonable - results on negative inputs. - [Bodo Moeller] - - *) Change BN_mod_mul so that the result is always non-negative. - Previously, it could be negative if one of the factors was negative; - I don't think anyone really wanted that behaviour. - [Bodo Moeller] - - *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c - (except for exponentiation, which stays in crypto/bn/bn_exp.c, - and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c) - and add new functions: - - BN_nnmod - BN_mod_sqr - BN_mod_add - BN_mod_add_quick - BN_mod_sub - BN_mod_sub_quick - BN_mod_lshift1 - BN_mod_lshift1_quick - BN_mod_lshift - BN_mod_lshift_quick - - These functions always generate non-negative results. - - BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r - such that |m| < r < 0, BN_nnmod will output rem + |m| instead). - - BN_mod_XXX_quick(r, a, [b,] m) generates the same result as - BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b] - be reduced modulo m. - [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] - -#if 0 - The following entry accidentily appeared in the CHANGES file - distributed with OpenSSL 0.9.7. The modifications described in - it do *not* apply to OpenSSL 0.9.7. - - *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there - was actually never needed) and in BN_mul(). The removal in BN_mul() - required a small change in bn_mul_part_recursive() and the addition - of the functions bn_cmp_part_words(), bn_sub_part_words() and - bn_add_part_words(), which do the same thing as bn_cmp_words(), - bn_sub_words() and bn_add_words() except they take arrays with - differing sizes. - [Richard Levitte] -#endif - - *) In 'openssl passwd', verify passwords read from the terminal - unless the '-salt' option is used (which usually means that - verification would just waste user's time since the resulting - hash is going to be compared with some given password hash) - or the new '-noverify' option is used. - - This is an incompatible change, but it does not affect - non-interactive use of 'openssl passwd' (passwords on the command - line, '-stdin' option, '-in ...' option) and thus should not - cause any problems. - [Bodo Moeller] - - *) Remove all references to RSAref, since there's no more need for it. - [Richard Levitte] - - *) Make DSO load along a path given through an environment variable - (SHLIB_PATH) with shl_load(). - [Richard Levitte] - - *) Constify the ENGINE code as a result of BIGNUM constification. - Also constify the RSA code and most things related to it. In a - few places, most notable in the depth of the ASN.1 code, ugly - casts back to non-const were required (to be solved at a later - time) - [Richard Levitte] - - *) Make it so the openssl application has all engines loaded by default. - [Richard Levitte] - - *) Constify the BIGNUM routines a little more. - [Richard Levitte] - - *) Add the following functions: - - ENGINE_load_cswift() - ENGINE_load_chil() - ENGINE_load_atalla() - ENGINE_load_nuron() - ENGINE_load_builtin_engines() - - That way, an application can itself choose if external engines that - are built-in in OpenSSL shall ever be used or not. The benefit is - that applications won't have to be linked with libdl or other dso - libraries unless it's really needed. - - Changed 'openssl engine' to load all engines on demand. - Changed the engine header files to avoid the duplication of some - declarations (they differed!). - [Richard Levitte] - - *) 'openssl engine' can now list capabilities. - [Richard Levitte] - - *) Better error reporting in 'openssl engine'. - [Richard Levitte] - - *) Never call load_dh_param(NULL) in s_server. - [Bodo Moeller] - - *) Add engine application. It can currently list engines by name and - identity, and test if they are actually available. - [Richard Levitte] - - *) Improve RPM specification file by forcing symbolic linking and making - sure the installed documentation is also owned by root.root. - [Damien Miller <djm@mindrot.org>] - - *) Give the OpenSSL applications more possibilities to make use of - keys (public as well as private) handled by engines. - [Richard Levitte] - - *) Add OCSP code that comes from CertCo. - [Richard Levitte] - - *) Add VMS support for the Rijndael code. - [Richard Levitte] - - *) Added untested support for Nuron crypto accelerator. - [Ben Laurie] - - *) Add support for external cryptographic devices. This code was - previously distributed separately as the "engine" branch. - [Geoff Thorpe, Richard Levitte] - - *) Rework the filename-translation in the DSO code. It is now possible to - have far greater control over how a "name" is turned into a filename - depending on the operating environment and any oddities about the - different shared library filenames on each system. - [Geoff Thorpe] - - *) Support threads on FreeBSD-elf in Configure. - [Richard Levitte] - - *) Fix for SHA1 assembly problem with MASM: it produces - warnings about corrupt line number information when assembling - with debugging information. This is caused by the overlapping - of two sections. - [Bernd Matthes <mainbug@celocom.de>, Steve Henson] - - *) NCONF changes. - NCONF_get_number() has no error checking at all. As a replacement, - NCONF_get_number_e() is defined (_e for "error checking") and is - promoted strongly. The old NCONF_get_number is kept around for - binary backward compatibility. - Make it possible for methods to load from something other than a BIO, - by providing a function pointer that is given a name instead of a BIO. - For example, this could be used to load configuration data from an - LDAP server. - [Richard Levitte] - - *) Fix for non blocking accept BIOs. Added new I/O special reason - BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs - with non blocking I/O was not possible because no retry code was - implemented. Also added new SSL code SSL_WANT_ACCEPT to cover - this case. - [Steve Henson] - - *) Added the beginnings of Rijndael support. - [Ben Laurie] - - *) Fix for bug in DirectoryString mask setting. Add support for - X509_NAME_print_ex() in 'req' and X509_print_ex() function - to allow certificate printing to more controllable, additional - 'certopt' option to 'x509' to allow new printing options to be - set. - [Steve Henson] - - *) Clean old EAY MD5 hack from e_os.h. - [Richard Levitte] - - Changes between 0.9.6l and 0.9.6m [17 Mar 2004] - - *) Fix null-pointer assignment in do_change_cipher_spec() revealed - by using the Codenomicon TLS Test Tool (CVE-2004-0079) - [Joe Orton, Steve Henson] - - Changes between 0.9.6k and 0.9.6l [04 Nov 2003] - - *) Fix additional bug revealed by the NISCC test suite: - - Stop bug triggering large recursion when presented with - certain ASN.1 tags (CVE-2003-0851) - [Steve Henson] - - Changes between 0.9.6j and 0.9.6k [30 Sep 2003] - - *) Fix various bugs revealed by running the NISCC test suite: - - Stop out of bounds reads in the ASN1 code when presented with - invalid tags (CVE-2003-0543 and CVE-2003-0544). - - If verify callback ignores invalid public key errors don't try to check - certificate signature with the NULL public key. - - [Steve Henson] - - *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate - if the server requested one: as stated in TLS 1.0 and SSL 3.0 - specifications. - [Steve Henson] - - *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional - extra data after the compression methods not only for TLS 1.0 - but also for SSL 3.0 (as required by the specification). - [Bodo Moeller; problem pointed out by Matthias Loepfe] - - *) Change X509_certificate_type() to mark the key as exported/exportable - when it's 512 *bits* long, not 512 bytes. - [Richard Levitte] - - Changes between 0.9.6i and 0.9.6j [10 Apr 2003] - - *) Countermeasure against the Klima-Pokorny-Rosa extension of - Bleichbacher's attack on PKCS #1 v1.5 padding: treat - a protocol version number mismatch like a decryption error - in ssl3_get_client_key_exchange (ssl/s3_srvr.c). - [Bodo Moeller] - - *) Turn on RSA blinding by default in the default implementation - to avoid a timing attack. Applications that don't want it can call - RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. - They would be ill-advised to do so in most cases. - [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] - - *) Change RSA blinding code so that it works when the PRNG is not - seeded (in this case, the secret RSA exponent is abused as - an unpredictable seed -- if it is not unpredictable, there - is no point in blinding anyway). Make RSA blinding thread-safe - by remembering the creator's thread ID in rsa->blinding and - having all other threads use local one-time blinding factors - (this requires more computation than sharing rsa->blinding, but - avoids excessive locking; and if an RSA object is not shared - between threads, blinding will still be very fast). - [Bodo Moeller] - - Changes between 0.9.6h and 0.9.6i [19 Feb 2003] - - *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked - via timing by performing a MAC computation even if incorrrect - block cipher padding has been found. This is a countermeasure - against active attacks where the attacker has to distinguish - between bad padding and a MAC verification error. (CVE-2003-0078) - - [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), - Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and - Martin Vuagnoux (EPFL, Ilion)] - - Changes between 0.9.6g and 0.9.6h [5 Dec 2002] - - *) New function OPENSSL_cleanse(), which is used to cleanse a section of - memory from it's contents. This is done with a counter that will - place alternating values in each byte. This can be used to solve - two issues: 1) the removal of calls to memset() by highly optimizing - compilers, and 2) cleansing with other values than 0, since those can - be read through on certain media, for example a swap space on disk. - [Geoff Thorpe] - - *) Bugfix: client side session caching did not work with external caching, - because the session->cipher setting was not restored when reloading - from the external cache. This problem was masked, when - SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. - (Found by Steve Haslam <steve@araqnid.ddts.net>.) - [Lutz Jaenicke] - - *) Fix client_certificate (ssl/s2_clnt.c): The permissible total - length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. - [Zeev Lieber <zeev-l@yahoo.com>] - - *) Undo an undocumented change introduced in 0.9.6e which caused - repeated calls to OpenSSL_add_all_ciphers() and - OpenSSL_add_all_digests() to be ignored, even after calling - EVP_cleanup(). - [Richard Levitte] - - *) Change the default configuration reader to deal with last line not - being properly terminated. - [Richard Levitte] - - *) Change X509_NAME_cmp() so it applies the special rules on handling - DN values that are of type PrintableString, as well as RDNs of type - emailAddress where the value has the type ia5String. - [stefank@valicert.com via Richard Levitte] - - *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half - the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently - doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be - the bitwise-OR of the two for use by the majority of applications - wanting this behaviour, and update the docs. The documented - behaviour and actual behaviour were inconsistent and had been - changing anyway, so this is more a bug-fix than a behavioural - change. - [Geoff Thorpe, diagnosed by Nadav Har'El] - - *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c - (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). - [Bodo Moeller] - - *) Fix initialization code race conditions in - SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), - SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), - SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), - TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), - ssl2_get_cipher_by_char(), - ssl3_get_cipher_by_char(). - [Patrick McCormick <patrick@tellme.com>, Bodo Moeller] - - *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after - the cached sessions are flushed, as the remove_cb() might use ex_data - contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> - (see [openssl.org #212]). - [Geoff Thorpe, Lutz Jaenicke] - - *) Fix typo in OBJ_txt2obj which incorrectly passed the content - length, instead of the encoding length to d2i_ASN1_OBJECT. - [Steve Henson] - - Changes between 0.9.6f and 0.9.6g [9 Aug 2002] - - *) [In 0.9.6g-engine release:] - Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall'). - [Lynn Gazis <lgazis@rainbow.com>] - - Changes between 0.9.6e and 0.9.6f [8 Aug 2002] - - *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX - and get fix the header length calculation. - [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, - Alon Kantor <alonk@checkpoint.com> (and others), - Steve Henson] - - *) Use proper error handling instead of 'assertions' in buffer - overflow checks added in 0.9.6e. This prevents DoS (the - assertions could call abort()). - [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller] - - Changes between 0.9.6d and 0.9.6e [30 Jul 2002] - - *) Add various sanity checks to asn1_get_length() to reject - the ASN1 length bytes if they exceed sizeof(long), will appear - negative or the content length exceeds the length of the - supplied buffer. - [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] - - *) Fix cipher selection routines: ciphers without encryption had no flags - for the cipher strength set and where therefore not handled correctly - by the selection routines (PR #130). - [Lutz Jaenicke] - - *) Fix EVP_dsa_sha macro. - [Nils Larsch] - - *) New option - SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS - for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure - that was added in OpenSSL 0.9.6d. - - As the countermeasure turned out to be incompatible with some - broken SSL implementations, the new option is part of SSL_OP_ALL. - SSL_OP_ALL is usually employed when compatibility with weird SSL - implementations is desired (e.g. '-bugs' option to 's_client' and - 's_server'), so the new option is automatically set in many - applications. - [Bodo Moeller] - - *) Changes in security patch: - - Changes marked "(CHATS)" were sponsored by the Defense Advanced - Research Projects Agency (DARPA) and Air Force Research Laboratory, - Air Force Materiel Command, USAF, under agreement number - F30602-01-2-0537. - - *) Add various sanity checks to asn1_get_length() to reject - the ASN1 length bytes if they exceed sizeof(long), will appear - negative or the content length exceeds the length of the - supplied buffer. (CVE-2002-0659) - [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] - - *) Assertions for various potential buffer overflows, not known to - happen in practice. - [Ben Laurie (CHATS)] - - *) Various temporary buffers to hold ASCII versions of integers were - too small for 64 bit platforms. (CVE-2002-0655) - [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)> - - *) Remote buffer overflow in SSL3 protocol - an attacker could - supply an oversized session ID to a client. (CVE-2002-0656) - [Ben Laurie (CHATS)] - - *) Remote buffer overflow in SSL2 protocol - an attacker could - supply an oversized client master key. (CVE-2002-0656) - [Ben Laurie (CHATS)] - - Changes between 0.9.6c and 0.9.6d [9 May 2002] - - *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not - encoded as NULL) with id-dsa-with-sha1. - [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller] - - *) Check various X509_...() return values in apps/req.c. - [Nils Larsch <nla@trustcenter.de>] - - *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: - an end-of-file condition would erronously be flagged, when the CRLF - was just at the end of a processed block. The bug was discovered when - processing data through a buffering memory BIO handing the data to a - BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov - <ptsekov@syntrex.com> and Nedelcho Stanev. - [Lutz Jaenicke] - - *) Implement a countermeasure against a vulnerability recently found - in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment - before application data chunks to avoid the use of known IVs - with data potentially chosen by the attacker. - [Bodo Moeller] - - *) Fix length checks in ssl3_get_client_hello(). - [Bodo Moeller] - - *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently - to prevent ssl3_read_internal() from incorrectly assuming that - ssl3_read_bytes() found application data while handshake - processing was enabled when in fact s->s3->in_read_app_data was - merely automatically cleared during the initial handshake. - [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>] - - *) Fix object definitions for Private and Enterprise: they were not - recognized in their shortname (=lowercase) representation. Extend - obj_dat.pl to issue an error when using undefined keywords instead - of silently ignoring the problem (Svenning Sorensen - <sss@sss.dnsalias.net>). - [Lutz Jaenicke] - - *) Fix DH_generate_parameters() so that it works for 'non-standard' - generators, i.e. generators other than 2 and 5. (Previously, the - code did not properly initialise the 'add' and 'rem' values to - BN_generate_prime().) - - In the new general case, we do not insist that 'generator' is - actually a primitive root: This requirement is rather pointless; - a generator of the order-q subgroup is just as good, if not - better. - [Bodo Moeller] - - *) Map new X509 verification errors to alerts. Discovered and submitted by - Tom Wu <tom@arcot.com>. - [Lutz Jaenicke] - - *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from - returning non-zero before the data has been completely received - when using non-blocking I/O. - [Bodo Moeller; problem pointed out by John Hughes] - - *) Some of the ciphers missed the strength entry (SSL_LOW etc). - [Ben Laurie, Lutz Jaenicke] - - *) Fix bug in SSL_clear(): bad sessions were not removed (found by - Yoram Zahavi <YoramZ@gilian.com>). - [Lutz Jaenicke] - - *) Add information about CygWin 1.3 and on, and preserve proper - configuration for the versions before that. - [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] - - *) Make removal from session cache (SSL_CTX_remove_session()) more robust: - check whether we deal with a copy of a session and do not delete from - the cache in this case. Problem reported by "Izhar Shoshani Levi" - <izhar@checkpoint.com>. - [Lutz Jaenicke] - - *) Do not store session data into the internal session cache, if it - is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP - flag is set). Proposed by Aslam <aslam@funk.com>. - [Lutz Jaenicke] - - *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested - value is 0. - [Richard Levitte] - - *) [In 0.9.6d-engine release:] - Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). - [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] - - *) Add the configuration target linux-s390x. - [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte] - - *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of - ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag - variable as an indication that a ClientHello message has been - received. As the flag value will be lost between multiple - invocations of ssl3_accept when using non-blocking I/O, the - function may not be aware that a handshake has actually taken - place, thus preventing a new session from being added to the - session cache. - - To avoid this problem, we now set s->new_session to 2 instead of - using a local variable. - [Lutz Jaenicke, Bodo Moeller] - - *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) - if the SSL_R_LENGTH_MISMATCH error is detected. - [Geoff Thorpe, Bodo Moeller] - - *) New 'shared_ldflag' column in Configure platform table. - [Richard Levitte] - - *) Fix EVP_CIPHER_mode macro. - ["Dan S. Camper" <dan@bti.net>] - - *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown - type, we must throw them away by setting rr->length to 0. - [D P Chang <dpc@qualys.com>] - - Changes between 0.9.6b and 0.9.6c [21 dec 2001] - - *) Fix BN_rand_range bug pointed out by Dominikus Scherkl - <Dominikus.Scherkl@biodata.com>. (The previous implementation - worked incorrectly for those cases where range = 10..._2 and - 3*range is two bits longer than range.) - [Bodo Moeller] - - *) Only add signing time to PKCS7 structures if it is not already - present. - [Steve Henson] - - *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", - OBJ_ld_ce should be OBJ_id_ce. - Also some ip-pda OIDs in crypto/objects/objects.txt were - incorrect (cf. RFC 3039). - [Matt Cooper, Frederic Giudicelli, Bodo Moeller] - - *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() - returns early because it has nothing to do. - [Andy Schneider <andy.schneider@bjss.co.uk>] - - *) [In 0.9.6c-engine release:] - Fix mutex callback return values in crypto/engine/hw_ncipher.c. - [Andy Schneider <andy.schneider@bjss.co.uk>] - - *) [In 0.9.6c-engine release:] - Add support for Cryptographic Appliance's keyserver technology. - (Use engine 'keyclient') - [Cryptographic Appliances and Geoff Thorpe] - - *) Add a configuration entry for OS/390 Unix. The C compiler 'c89' - is called via tools/c89.sh because arguments have to be - rearranged (all '-L' options must appear before the first object - modules). - [Richard Shapiro <rshapiro@abinitio.com>] - - *) [In 0.9.6c-engine release:] - Add support for Broadcom crypto accelerator cards, backported - from 0.9.7. - [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox] - - *) [In 0.9.6c-engine release:] - Add support for SureWare crypto accelerator cards from - Baltimore Technologies. (Use engine 'sureware') - [Baltimore Technologies and Mark Cox] - - *) [In 0.9.6c-engine release:] - Add support for crypto accelerator cards from Accelerated - Encryption Processing, www.aep.ie. (Use engine 'aep') - [AEP Inc. and Mark Cox] - - *) Add a configuration entry for gcc on UnixWare. - [Gary Benson <gbenson@redhat.com>] - - *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake - messages are stored in a single piece (fixed-length part and - variable-length part combined) and fix various bugs found on the way. - [Bodo Moeller] - - *) Disable caching in BIO_gethostbyname(), directly use gethostbyname() - instead. BIO_gethostbyname() does not know what timeouts are - appropriate, so entries would stay in cache even when they have - become invalid. - [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com> - - *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when - faced with a pathologically small ClientHello fragment that does - not contain client_version: Instead of aborting with an error, - simply choose the highest available protocol version (i.e., - TLS 1.0 unless it is disabled). In practice, ClientHello - messages are never sent like this, but this change gives us - strictly correct behaviour at least for TLS. - [Bodo Moeller] - - *) Fix SSL handshake functions and SSL_clear() such that SSL_clear() - never resets s->method to s->ctx->method when called from within - one of the SSL handshake functions. - [Bodo Moeller; problem pointed out by Niko Baric] - - *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert - (sent using the client's version number) if client_version is - smaller than the protocol version in use. Also change - ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if - the client demanded SSL 3.0 but only TLS 1.0 is enabled; then - the client will at least see that alert. - [Bodo Moeller] - - *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation - correctly. - [Bodo Moeller] - - *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a - client receives HelloRequest while in a handshake. - [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>] - - *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C - should end in 'break', not 'goto end' which circuments various - cleanups done in state SSL_ST_OK. But session related stuff - must be disabled for SSL_ST_OK in the case that we just sent a - HelloRequest. - - Also avoid some overhead by not calling ssl_init_wbio_buffer() - before just sending a HelloRequest. - [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>] - - *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't - reveal whether illegal block cipher padding was found or a MAC - verification error occured. (Neither SSLerr() codes nor alerts - are directly visible to potential attackers, but the information - may leak via logfiles.) - - Similar changes are not required for the SSL 2.0 implementation - because the number of padding bytes is sent in clear for SSL 2.0, - and the extra bytes are just ignored. However ssl/s2_pkt.c - failed to verify that the purported number of padding bytes is in - the legal range. - [Bodo Moeller] - - *) Add OpenUNIX-8 support including shared libraries - (Boyd Lynn Gerber <gerberb@zenez.com>). - [Lutz Jaenicke] - - *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid - 'wristwatch attack' using huge encoding parameters (cf. - James H. Manger's CRYPTO 2001 paper). Note that the - RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use - encoding parameters and hence was not vulnerable. - [Bodo Moeller] - - *) BN_sqr() bug fix. - [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>] - - *) Rabin-Miller test analyses assume uniformly distributed witnesses, - so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() - followed by modular reduction. - [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>] - - *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() - equivalent based on BN_pseudo_rand() instead of BN_rand(). - [Bodo Moeller] - - *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB). - This function was broken, as the check for a new client hello message - to handle SGC did not allow these large messages. - (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) - [Lutz Jaenicke] - - *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long](). - [Lutz Jaenicke] - - *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() - for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). - [Lutz Jaenicke] - - *) Rework the configuration and shared library support for Tru64 Unix. - The configuration part makes use of modern compiler features and - still retains old compiler behavior for those that run older versions - of the OS. The shared library support part includes a variant that - uses the RPATH feature, and is available through the special - configuration target "alpha-cc-rpath", which will never be selected - automatically. - [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte] - - *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() - with the same message size as in ssl3_get_certificate_request(). - Otherwise, if no ServerKeyExchange message occurs, CertificateRequest - messages might inadvertently be reject as too long. - [Petr Lampa <lampa@fee.vutbr.cz>] - - *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). - [Andy Polyakov] - - *) Modified SSL library such that the verify_callback that has been set - specificly for an SSL object with SSL_set_verify() is actually being - used. Before the change, a verify_callback set with this function was - ignored and the verify_callback() set in the SSL_CTX at the time of - the call was used. New function X509_STORE_CTX_set_verify_cb() introduced - to allow the necessary settings. - [Lutz Jaenicke] - - *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c - explicitly to NULL, as at least on Solaris 8 this seems not always to be - done automatically (in contradiction to the requirements of the C - standard). This made problems when used from OpenSSH. - [Lutz Jaenicke] - - *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored - dh->length and always used - - BN_rand_range(priv_key, dh->p). - - BN_rand_range() is not necessary for Diffie-Hellman, and this - specific range makes Diffie-Hellman unnecessarily inefficient if - dh->length (recommended exponent length) is much smaller than the - length of dh->p. We could use BN_rand_range() if the order of - the subgroup was stored in the DH structure, but we only have - dh->length. - - So switch back to - - BN_rand(priv_key, l, ...) - - where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 - otherwise. - [Bodo Moeller] - - *) In - - RSA_eay_public_encrypt - RSA_eay_private_decrypt - RSA_eay_private_encrypt (signing) - RSA_eay_public_decrypt (signature verification) - - (default implementations for RSA_public_encrypt, - RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), - always reject numbers >= n. - [Bodo Moeller] - - *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 - to synchronize access to 'locking_thread'. This is necessary on - systems where access to 'locking_thread' (an 'unsigned long' - variable) is not atomic. - [Bodo Moeller] - - *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID - *before* setting the 'crypto_lock_rand' flag. The previous code had - a race condition if 0 is a valid thread ID. - [Travis Vitek <vitek@roguewave.com>] - - *) Add support for shared libraries under Irix. - [Albert Chin-A-Young <china@thewrittenword.com>] - - *) Add configuration option to build on Linux on both big-endian and - little-endian MIPS. - [Ralf Baechle <ralf@uni-koblenz.de>] - - *) Add the possibility to create shared libraries on HP-UX. - [Richard Levitte] - - Changes between 0.9.6a and 0.9.6b [9 Jul 2001] - - *) Change ssleay_rand_bytes (crypto/rand/md_rand.c) - to avoid a SSLeay/OpenSSL PRNG weakness pointed out by - Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: - PRNG state recovery was possible based on the output of - one PRNG request appropriately sized to gain knowledge on - 'md' followed by enough consecutive 1-byte PRNG requests - to traverse all of 'state'. - - 1. When updating 'md_local' (the current thread's copy of 'md') - during PRNG output generation, hash all of the previous - 'md_local' value, not just the half used for PRNG output. - - 2. Make the number of bytes from 'state' included into the hash - independent from the number of PRNG bytes requested. - - The first measure alone would be sufficient to avoid - Markku-Juhani's attack. (Actually it had never occurred - to me that the half of 'md_local' used for chaining was the - half from which PRNG output bytes were taken -- I had always - assumed that the secret half would be used.) The second - measure makes sure that additional data from 'state' is never - mixed into 'md_local' in small portions; this heuristically - further strengthens the PRNG. - [Bodo Moeller] - - *) Fix crypto/bn/asm/mips3.s. - [Andy Polyakov] - - *) When only the key is given to "enc", the IV is undefined. Print out - an error message in this case. - [Lutz Jaenicke] - - *) Handle special case when X509_NAME is empty in X509 printing routines. - [Steve Henson] - - *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are - positive and less than q. - [Bodo Moeller] - - *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is - used: it isn't thread safe and the add_lock_callback should handle - that itself. - [Paul Rose <Paul.Rose@bridge.com>] - - *) Verify that incoming data obeys the block size in - ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). - [Bodo Moeller] - - *) Fix OAEP check. - [Ulf Möller, Bodo Möller] - - *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 - RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 - when fixing the server behaviour for backwards-compatible 'client - hello' messages. (Note that the attack is impractical against - SSL 3.0 and TLS 1.0 anyway because length and version checking - means that the probability of guessing a valid ciphertext is - around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 - paper.) - - Before 0.9.5, the countermeasure (hide the error by generating a - random 'decryption result') did not work properly because - ERR_clear_error() was missing, meaning that SSL_get_error() would - detect the supposedly ignored error. - - Both problems are now fixed. - [Bodo Moeller] - - *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 - (previously it was 1024). - [Bodo Moeller] - - *) Fix for compatibility mode trust settings: ignore trust settings - unless some valid trust or reject settings are present. - [Steve Henson] - - *) Fix for blowfish EVP: its a variable length cipher. - [Steve Henson] - - *) Fix various bugs related to DSA S/MIME verification. Handle missing - parameters in DSA public key structures and return an error in the - DSA routines if parameters are absent. - [Steve Henson] - - *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" - in the current directory if neither $RANDFILE nor $HOME was set. - RAND_file_name() in 0.9.6a returned NULL in this case. This has - caused some confusion to Windows users who haven't defined $HOME. - Thus RAND_file_name() is changed again: e_os.h can define a - DEFAULT_HOME, which will be used if $HOME is not set. - For Windows, we use "C:"; on other platforms, we still require - environment variables. - - *) Move 'if (!initialized) RAND_poll()' into regions protected by - CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids - having multiple threads call RAND_poll() concurrently. - [Bodo Moeller] - - *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a - combination of a flag and a thread ID variable. - Otherwise while one thread is in ssleay_rand_bytes (which sets the - flag), *other* threads can enter ssleay_add_bytes without obeying - the CRYPTO_LOCK_RAND lock (and may even illegally release the lock - that they do not hold after the first thread unsets add_do_not_lock). - [Bodo Moeller] - - *) Change bctest again: '-x' expressions are not available in all - versions of 'test'. - [Bodo Moeller] - - Changes between 0.9.6 and 0.9.6a [5 Apr 2001] - - *) Fix a couple of memory leaks in PKCS7_dataDecode() - [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>] - - *) Change Configure and Makefiles to provide EXE_EXT, which will contain - the default extension for executables, if any. Also, make the perl - scripts that use symlink() to test if it really exists and use "cp" - if it doesn't. All this made OpenSSL compilable and installable in - CygWin. - [Richard Levitte] - - *) Fix for asn1_GetSequence() for indefinite length constructed data. - If SEQUENCE is length is indefinite just set c->slen to the total - amount of data available. - [Steve Henson, reported by shige@FreeBSD.org] - [This change does not apply to 0.9.7.] - - *) Change bctest to avoid here-documents inside command substitution - (workaround for FreeBSD /bin/sh bug). - For compatibility with Ultrix, avoid shell functions (introduced - in the bctest version that searches along $PATH). - [Bodo Moeller] - - *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes - with des_encrypt() defined on some operating systems, like Solaris - and UnixWare. - [Richard Levitte] - - *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: - On the Importance of Eliminating Errors in Cryptographic - Computations, J. Cryptology 14 (2001) 2, 101-119, - http://theory.stanford.edu/~dabo/papers/faults.ps.gz). - [Ulf Moeller] - - *) MIPS assembler BIGNUM division bug fix. - [Andy Polyakov] - - *) Disabled incorrect Alpha assembler code. - [Richard Levitte] - - *) Fix PKCS#7 decode routines so they correctly update the length - after reading an EOC for the EXPLICIT tag. - [Steve Henson] - [This change does not apply to 0.9.7.] - - *) Fix bug in PKCS#12 key generation routines. This was triggered - if a 3DES key was generated with a 0 initial byte. Include - PKCS12_BROKEN_KEYGEN compilation option to retain the old - (but broken) behaviour. - [Steve Henson] - - *) Enhance bctest to search for a working bc along $PATH and print - it when found. - [Tim Rice <tim@multitalents.net> via Richard Levitte] - - *) Fix memory leaks in err.c: free err_data string if necessary; - don't write to the wrong index in ERR_set_error_data. - [Bodo Moeller] - - *) Implement ssl23_peek (analogous to ssl23_read), which previously - did not exist. - [Bodo Moeller] - - *) Replace rdtsc with _emit statements for VC++ version 5. - [Jeremy Cooper <jeremy@baymoo.org>] - - *) Make it possible to reuse SSLv2 sessions. - [Richard Levitte] - - *) In copy_email() check for >= 0 as a return value for - X509_NAME_get_index_by_NID() since 0 is a valid index. - [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>] - - *) Avoid coredump with unsupported or invalid public keys by checking if - X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when - PKCS7_verify() fails with non detached data. - [Steve Henson] - - *) Don't use getenv in library functions when run as setuid/setgid. - New function OPENSSL_issetugid(). - [Ulf Moeller] - - *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c) - due to incorrect handling of multi-threading: - - 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). - - 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). - - 3. Count how many times MemCheck_off() has been called so that - nested use can be treated correctly. This also avoids - inband-signalling in the previous code (which relied on the - assumption that thread ID 0 is impossible). - [Bodo Moeller] - - *) Add "-rand" option also to s_client and s_server. - [Lutz Jaenicke] - - *) Fix CPU detection on Irix 6.x. - [Kurt Hockenbury <khockenb@stevens-tech.edu> and - "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] - - *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME - was empty. - [Steve Henson] - [This change does not apply to 0.9.7.] - - *) Use the cached encoding of an X509_NAME structure rather than - copying it. This is apparently the reason for the libsafe "errors" - but the code is actually correct. - [Steve Henson] - - *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent - Bleichenbacher's DSA attack. - Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits - to be set and top=0 forces the highest bit to be set; top=-1 is new - and leaves the highest bit random. - [Ulf Moeller, Bodo Moeller] - - *) In the NCONF_...-based implementations for CONF_... queries - (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using - a temporary CONF structure with the data component set to NULL - (which gives segmentation faults in lh_retrieve). - Instead, use NULL for the CONF pointer in CONF_get_string and - CONF_get_number (which may use environment variables) and directly - return NULL from CONF_get_section. - [Bodo Moeller] - - *) Fix potential buffer overrun for EBCDIC. - [Ulf Moeller] - - *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign - keyUsage if basicConstraints absent for a CA. - [Steve Henson] - - *) Make SMIME_write_PKCS7() write mail header values with a format that - is more generally accepted (no spaces before the semicolon), since - some programs can't parse those values properly otherwise. Also make - sure BIO's that break lines after each write do not create invalid - headers. - [Richard Levitte] - - *) Make the CRL encoding routines work with empty SEQUENCE OF. The - macros previously used would not encode an empty SEQUENCE OF - and break the signature. - [Steve Henson] - [This change does not apply to 0.9.7.] - - *) Zero the premaster secret after deriving the master secret in - DH ciphersuites. - [Steve Henson] - - *) Add some EVP_add_digest_alias registrations (as found in - OpenSSL_add_all_digests()) to SSL_library_init() - aka OpenSSL_add_ssl_algorithms(). This provides improved - compatibility with peers using X.509 certificates - with unconventional AlgorithmIdentifier OIDs. - [Bodo Moeller] - - *) Fix for Irix with NO_ASM. - ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] - - *) ./config script fixes. - [Ulf Moeller, Richard Levitte] - - *) Fix 'openssl passwd -1'. - [Bodo Moeller] - - *) Change PKCS12_key_gen_asc() so it can cope with non null - terminated strings whose length is passed in the passlen - parameter, for example from PEM callbacks. This was done - by adding an extra length parameter to asc2uni(). - [Steve Henson, reported by <oddissey@samsung.co.kr>] - - *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn - call failed, free the DSA structure. - [Bodo Moeller] - - *) Fix to uni2asc() to cope with zero length Unicode strings. - These are present in some PKCS#12 files. - [Steve Henson] - - *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). - Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits - when writing a 32767 byte record. - [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>] - - *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c), - obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}. - - (RSA objects have a reference count access to which is protected - by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], - so they are meant to be shared between threads.) - [Bodo Moeller, Geoff Thorpe; original patch submitted by - "Reddie, Steven" <Steven.Reddie@ca.com>] - - *) Fix a deadlock in CRYPTO_mem_leaks(). - [Bodo Moeller] - - *) Use better test patterns in bntest. - [Ulf Möller] - - *) rand_win.c fix for Borland C. - [Ulf Möller] - - *) BN_rshift bugfix for n == 0. - [Bodo Moeller] - - *) Add a 'bctest' script that checks for some known 'bc' bugs - so that 'make test' does not abort just because 'bc' is broken. - [Bodo Moeller] - - *) Store verify_result within SSL_SESSION also for client side to - avoid potential security hole. (Re-used sessions on the client side - always resulted in verify_result==X509_V_OK, not using the original - result of the server certificate verification.) - [Lutz Jaenicke] - - *) Fix ssl3_pending: If the record in s->s3->rrec is not of type - SSL3_RT_APPLICATION_DATA, return 0. - Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. - [Bodo Moeller] - - *) Fix SSL_peek: - Both ssl2_peek and ssl3_peek, which were totally broken in earlier - releases, have been re-implemented by renaming the previous - implementations of ssl2_read and ssl3_read to ssl2_read_internal - and ssl3_read_internal, respectively, and adding 'peek' parameters - to them. The new ssl[23]_{read,peek} functions are calls to - ssl[23]_read_internal with the 'peek' flag set appropriately. - A 'peek' parameter has also been added to ssl3_read_bytes, which - does the actual work for ssl3_read_internal. - [Bodo Moeller] - - *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling - the method-specific "init()" handler. Also clean up ex_data after - calling the method-specific "finish()" handler. Previously, this was - happening the other way round. - [Geoff Thorpe] - - *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. - The previous value, 12, was not always sufficient for BN_mod_exp(). - [Bodo Moeller] - - *) Make sure that shared libraries get the internal name engine with - the full version number and not just 0. This should mark the - shared libraries as not backward compatible. Of course, this should - be changed again when we can guarantee backward binary compatibility. - [Richard Levitte] - - *) Fix typo in get_cert_by_subject() in by_dir.c - [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>] - - *) Rework the system to generate shared libraries: - - - Make note of the expected extension for the shared libraries and - if there is a need for symbolic links from for example libcrypto.so.0 - to libcrypto.so.0.9.7. There is extended info in Configure for - that. - - - Make as few rebuilds of the shared libraries as possible. - - - Still avoid linking the OpenSSL programs with the shared libraries. - - - When installing, install the shared libraries separately from the - static ones. - [Richard Levitte] - - *) Fix SSL_CTX_set_read_ahead macro to actually use its argument. - - Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new - and not in SSL_clear because the latter is also used by the - accept/connect functions; previously, the settings made by - SSL_set_read_ahead would be lost during the handshake. - [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>] - - *) Correct util/mkdef.pl to be selective about disabled algorithms. - Previously, it would create entries for disableed algorithms no - matter what. - [Richard Levitte] - - *) Added several new manual pages for SSL_* function. - [Lutz Jaenicke] - - Changes between 0.9.5a and 0.9.6 [24 Sep 2000] - - *) In ssl23_get_client_hello, generate an error message when faced - with an initial SSL 3.0/TLS record that is too small to contain the - first two bytes of the ClientHello message, i.e. client_version. - (Note that this is a pathologic case that probably has never happened - in real life.) The previous approach was to use the version number - from the record header as a substitute; but our protocol choice - should not depend on that one because it is not authenticated - by the Finished messages. - [Bodo Moeller] - - *) More robust randomness gathering functions for Windows. - [Jeffrey Altman <jaltman@columbia.edu>] - - *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is - not set then we don't setup the error code for issuer check errors - to avoid possibly overwriting other errors which the callback does - handle. If an application does set the flag then we assume it knows - what it is doing and can handle the new informational codes - appropriately. - [Steve Henson] - - *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for - a general "ANY" type, as such it should be able to decode anything - including tagged types. However it didn't check the class so it would - wrongly interpret tagged types in the same way as their universal - counterpart and unknown types were just rejected. Changed so that the - tagged and unknown types are handled in the same way as a SEQUENCE: - that is the encoding is stored intact. There is also a new type - "V_ASN1_OTHER" which is used when the class is not universal, in this - case we have no idea what the actual type is so we just lump them all - together. - [Steve Henson] - - *) On VMS, stdout may very well lead to a file that is written to - in a record-oriented fashion. That means that every write() will - write a separate record, which will be read separately by the - programs trying to read from it. This can be very confusing. - - The solution is to put a BIO filter in the way that will buffer - text until a linefeed is reached, and then write everything a - line at a time, so every record written will be an actual line, - not chunks of lines and not (usually doesn't happen, but I've - seen it once) several lines in one record. BIO_f_linebuffer() is - the answer. - - Currently, it's a VMS-only method, because that's where it has - been tested well enough. - [Richard Levitte] - - *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery, - it can return incorrect results. - (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, - but it was in 0.9.6-beta[12].) - [Bodo Moeller] - - *) Disable the check for content being present when verifying detached - signatures in pk7_smime.c. Some versions of Netscape (wrongly) - include zero length content when signing messages. - [Steve Henson] - - *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR - BIO_ctrl (for BIO pairs). - [Bodo Möller] - - *) Add DSO method for VMS. - [Richard Levitte] - - *) Bug fix: Montgomery multiplication could produce results with the - wrong sign. - [Ulf Möller] - - *) Add RPM specification openssl.spec and modify it to build three - packages. The default package contains applications, application - documentation and run-time libraries. The devel package contains - include files, static libraries and function documentation. The - doc package contains the contents of the doc directory. The original - openssl.spec was provided by Damien Miller <djm@mindrot.org>. - [Richard Levitte] - - *) Add a large number of documentation files for many SSL routines. - [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] - - *) Add a configuration entry for Sony News 4. - [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>] - - *) Don't set the two most significant bits to one when generating a - random number < q in the DSA library. - [Ulf Möller] - - *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default - behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if - the underlying transport is blocking) if a handshake took place. - (The default behaviour is needed by applications such as s_client - and s_server that use select() to determine when to use SSL_read; - but for applications that know in advance when to expect data, it - just makes things more complicated.) - [Bodo Moeller] - - *) Add RAND_egd_bytes(), which gives control over the number of bytes read - from EGD. - [Ben Laurie] - - *) Add a few more EBCDIC conditionals that make `req' and `x509' - work better on such systems. - [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] - - *) Add two demo programs for PKCS12_parse() and PKCS12_create(). - Update PKCS12_parse() so it copies the friendlyName and the - keyid to the certificates aux info. - [Steve Henson] - - *) Fix bug in PKCS7_verify() which caused an infinite loop - if there was more than one signature. - [Sven Uszpelkat <su@celocom.de>] - - *) Major change in util/mkdef.pl to include extra information - about each symbol, as well as presentig variables as well - as functions. This change means that there's n more need - to rebuild the .num files when some algorithms are excluded. - [Richard Levitte] - - *) Allow the verify time to be set by an application, - rather than always using the current time. - [Steve Henson] - - *) Phase 2 verify code reorganisation. The certificate - verify code now looks up an issuer certificate by a - number of criteria: subject name, authority key id - and key usage. It also verifies self signed certificates - by the same criteria. The main comparison function is - X509_check_issued() which performs these checks. - - Lot of changes were necessary in order to support this - without completely rewriting the lookup code. - - Authority and subject key identifier are now cached. - - The LHASH 'certs' is X509_STORE has now been replaced - by a STACK_OF(X509_OBJECT). This is mainly because an - LHASH can't store or retrieve multiple objects with - the same hash value. - - As a result various functions (which were all internal - use only) have changed to handle the new X509_STORE - structure. This will break anything that messed round - with X509_STORE internally. - - The functions X509_STORE_add_cert() now checks for an - exact match, rather than just subject name. - - The X509_STORE API doesn't directly support the retrieval - of multiple certificates matching a given criteria, however - this can be worked round by performing a lookup first - (which will fill the cache with candidate certificates) - and then examining the cache for matches. This is probably - the best we can do without throwing out X509_LOOKUP - entirely (maybe later...). - - The X509_VERIFY_CTX structure has been enhanced considerably. - - All certificate lookup operations now go via a get_issuer() - callback. Although this currently uses an X509_STORE it - can be replaced by custom lookups. This is a simple way - to bypass the X509_STORE hackery necessary to make this - work and makes it possible to use more efficient techniques - in future. A very simple version which uses a simple - STACK for its trusted certificate store is also provided - using X509_STORE_CTX_trusted_stack(). - - The verify_cb() and verify() callbacks now have equivalents - in the X509_STORE_CTX structure. - - X509_STORE_CTX also has a 'flags' field which can be used - to customise the verify behaviour. - [Steve Henson] - - *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which - excludes S/MIME capabilities. - [Steve Henson] - - *) When a certificate request is read in keep a copy of the - original encoding of the signed data and use it when outputing - again. Signatures then use the original encoding rather than - a decoded, encoded version which may cause problems if the - request is improperly encoded. - [Steve Henson] - - *) For consistency with other BIO_puts implementations, call - buffer_write(b, ...) directly in buffer_puts instead of calling - BIO_write(b, ...). - - In BIO_puts, increment b->num_write as in BIO_write. - [Peter.Sylvester@EdelWeb.fr] - - *) Fix BN_mul_word for the case where the word is 0. (We have to use - BN_zero, we may not return a BIGNUM with an array consisting of - words set to zero.) - [Bodo Moeller] - - *) Avoid calling abort() from within the library when problems are - detected, except if preprocessor symbols have been defined - (such as REF_CHECK, BN_DEBUG etc.). - [Bodo Moeller] - - *) New openssl application 'rsautl'. This utility can be - used for low level RSA operations. DER public key - BIO/fp routines also added. - [Steve Henson] - - *) New Configure entry and patches for compiling on QNX 4. - [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>] - - *) A demo state-machine implementation was sponsored by - Nuron (http://www.nuron.com/) and is now available in - demos/state_machine. - [Ben Laurie] - - *) New options added to the 'dgst' utility for signature - generation and verification. - [Steve Henson] - - *) Unrecognized PKCS#7 content types are now handled via a - catch all ASN1_TYPE structure. This allows unsupported - types to be stored as a "blob" and an application can - encode and decode it manually. - [Steve Henson] - - *) Fix various signed/unsigned issues to make a_strex.c - compile under VC++. - [Oscar Jacobsson <oscar.jacobsson@celocom.com>] - - *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct - length if passed a buffer. ASN1_INTEGER_to_BN failed - if passed a NULL BN and its argument was negative. - [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>] - - *) Modification to PKCS#7 encoding routines to output definite - length encoding. Since currently the whole structures are in - memory there's not real point in using indefinite length - constructed encoding. However if OpenSSL is compiled with - the flag PKCS7_INDEFINITE_ENCODING the old form is used. - [Steve Henson] - - *) Added BIO_vprintf() and BIO_vsnprintf(). - [Richard Levitte] - - *) Added more prefixes to parse for in the the strings written - through a logging bio, to cover all the levels that are available - through syslog. The prefixes are now: - - PANIC, EMERG, EMR => LOG_EMERG - ALERT, ALR => LOG_ALERT - CRIT, CRI => LOG_CRIT - ERROR, ERR => LOG_ERR - WARNING, WARN, WAR => LOG_WARNING - NOTICE, NOTE, NOT => LOG_NOTICE - INFO, INF => LOG_INFO - DEBUG, DBG => LOG_DEBUG - - and as before, if none of those prefixes are present at the - beginning of the string, LOG_ERR is chosen. - - On Win32, the LOG_* levels are mapped according to this: - - LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE - LOG_WARNING => EVENTLOG_WARNING_TYPE - LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE - - [Richard Levitte] - - *) Made it possible to reconfigure with just the configuration - argument "reconf" or "reconfigure". The command line arguments - are stored in Makefile.ssl in the variable CONFIGURE_ARGS, - and are retrieved from there when reconfiguring. - [Richard Levitte] - - *) MD4 implemented. - [Assar Westerlund <assar@sics.se>, Richard Levitte] - - *) Add the arguments -CAfile and -CApath to the pkcs12 utility. - [Richard Levitte] - - *) The obj_dat.pl script was messing up the sorting of object - names. The reason was that it compared the quoted version - of strings as a result "OCSP" > "OCSP Signing" because - " > SPACE. Changed script to store unquoted versions of - names and add quotes on output. It was also omitting some - names from the lookup table if they were given a default - value (that is if SN is missing it is given the same - value as LN and vice versa), these are now added on the - grounds that if an object has a name we should be able to - look it up. Finally added warning output when duplicate - short or long names are found. - [Steve Henson] - - *) Changes needed for Tandem NSK. - [Scott Uroff <scott@xypro.com>] - - *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in - RSA_padding_check_SSLv23(), special padding was never detected - and thus the SSL 3.0/TLS 1.0 countermeasure against protocol - version rollback attacks was not effective. - - In s23_clnt.c, don't use special rollback-attack detection padding - (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the - client; similarly, in s23_srvr.c, don't do the rollback check if - SSL 2.0 is the only protocol enabled in the server. - [Bodo Moeller] - - *) Make it possible to get hexdumps of unprintable data with 'openssl - asn1parse'. By implication, the functions ASN1_parse_dump() and - BIO_dump_indent() are added. - [Richard Levitte] - - *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() - these print out strings and name structures based on various - flags including RFC2253 support and proper handling of - multibyte characters. Added options to the 'x509' utility - to allow the various flags to be set. - [Steve Henson] - - *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. - Also change the functions X509_cmp_current_time() and - X509_gmtime_adj() work with an ASN1_TIME structure, - this will enable certificates using GeneralizedTime in validity - dates to be checked. - [Steve Henson] - - *) Make the NEG_PUBKEY_BUG code (which tolerates invalid - negative public key encodings) on by default, - NO_NEG_PUBKEY_BUG can be set to disable it. - [Steve Henson] - - *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT - content octets. An i2c_ASN1_OBJECT is unnecessary because - the encoding can be trivially obtained from the structure. - [Steve Henson] - - *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock), - not read locks (CRYPTO_r_[un]lock). - [Bodo Moeller] - - *) A first attempt at creating official support for shared - libraries through configuration. I've kept it so the - default is static libraries only, and the OpenSSL programs - are always statically linked for now, but there are - preparations for dynamic linking in place. - This has been tested on Linux and Tru64. - [Richard Levitte] - - *) Randomness polling function for Win9x, as described in: - Peter Gutmann, Software Generation of Practically Strong - Random Numbers. - [Ulf Möller] - - *) Fix so PRNG is seeded in req if using an already existing - DSA key. - [Steve Henson] - - *) New options to smime application. -inform and -outform - allow alternative formats for the S/MIME message including - PEM and DER. The -content option allows the content to be - specified separately. This should allow things like Netscape - form signing output easier to verify. - [Steve Henson] - - *) Fix the ASN1 encoding of tags using the 'long form'. - [Steve Henson] - - *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT - STRING types. These convert content octets to and from the - underlying type. The actual tag and length octets are - already assumed to have been read in and checked. These - are needed because all other string types have virtually - identical handling apart from the tag. By having versions - of the ASN1 functions that just operate on content octets - IMPLICIT tagging can be handled properly. It also allows - the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED - and ASN1_INTEGER are identical apart from the tag. - [Steve Henson] - - *) Change the handling of OID objects as follows: - - - New object identifiers are inserted in objects.txt, following - the syntax given in objects.README. - - objects.pl is used to process obj_mac.num and create a new - obj_mac.h. - - obj_dat.pl is used to create a new obj_dat.h, using the data in - obj_mac.h. - - This is currently kind of a hack, and the perl code in objects.pl - isn't very elegant, but it works as I intended. The simplest way - to check that it worked correctly is to look in obj_dat.h and - check the array nid_objs and make sure the objects haven't moved - around (this is important!). Additions are OK, as well as - consistent name changes. - [Richard Levitte] - - *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). - [Bodo Moeller] - - *) Addition of the command line parameter '-rand file' to 'openssl req'. - The given file adds to whatever has already been seeded into the - random pool through the RANDFILE configuration file option or - environment variable, or the default random state file. - [Richard Levitte] - - *) mkstack.pl now sorts each macro group into lexical order. - Previously the output order depended on the order the files - appeared in the directory, resulting in needless rewriting - of safestack.h . - [Steve Henson] - - *) Patches to make OpenSSL compile under Win32 again. Mostly - work arounds for the VC++ problem that it treats func() as - func(void). Also stripped out the parts of mkdef.pl that - added extra typesafe functions: these no longer exist. - [Steve Henson] - - *) Reorganisation of the stack code. The macros are now all - collected in safestack.h . Each macro is defined in terms of - a "stack macro" of the form SKM_<name>(type, a, b). The - DEBUG_SAFESTACK is now handled in terms of function casts, - this has the advantage of retaining type safety without the - use of additional functions. If DEBUG_SAFESTACK is not defined - then the non typesafe macros are used instead. Also modified the - mkstack.pl script to handle the new form. Needs testing to see - if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK - the default if no major problems. Similar behaviour for ASN1_SET_OF - and PKCS12_STACK_OF. - [Steve Henson] - - *) When some versions of IIS use the 'NET' form of private key the - key derivation algorithm is different. Normally MD5(password) is - used as a 128 bit RC4 key. In the modified case - MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some - new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same - as the old Netscape_RSA functions except they have an additional - 'sgckey' parameter which uses the modified algorithm. Also added - an -sgckey command line option to the rsa utility. Thanks to - Adrian Peck <bertie@ncipher.com> for posting details of the modified - algorithm to openssl-dev. - [Steve Henson] - - *) The evp_local.h macros were using 'c.##kname' which resulted in - invalid expansion on some systems (SCO 5.0.5 for example). - Corrected to 'c.kname'. - [Phillip Porch <root@theporch.com>] - - *) New X509_get1_email() and X509_REQ_get1_email() functions that return - a STACK of email addresses from a certificate or request, these look - in the subject name and the subject alternative name extensions and - omit any duplicate addresses. - [Steve Henson] - - *) Re-implement BN_mod_exp2_mont using independent (and larger) windows. - This makes DSA verification about 2 % faster. - [Bodo Moeller] - - *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5 - (meaning that now 2^5 values will be precomputed, which is only 4 KB - plus overhead for 1024 bit moduli). - This makes exponentiations about 0.5 % faster for 1024 bit - exponents (as measured by "openssl speed rsa2048"). - [Bodo Moeller] - - *) Rename memory handling macros to avoid conflicts with other - software: - Malloc => OPENSSL_malloc - Malloc_locked => OPENSSL_malloc_locked - Realloc => OPENSSL_realloc - Free => OPENSSL_free - [Richard Levitte] - - *) New function BN_mod_exp_mont_word for small bases (roughly 15% - faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). - [Bodo Moeller] - - *) CygWin32 support. - [John Jarvie <jjarvie@newsguy.com>] - - *) The type-safe stack code has been rejigged. It is now only compiled - in when OpenSSL is configured with the DEBUG_SAFESTACK option and - by default all type-specific stack functions are "#define"d back to - standard stack functions. This results in more streamlined output - but retains the type-safety checking possibilities of the original - approach. - [Geoff Thorpe] - - *) The STACK code has been cleaned up, and certain type declarations - that didn't make a lot of sense have been brought in line. This has - also involved a cleanup of sorts in safestack.h to more correctly - map type-safe stack functions onto their plain stack counterparts. - This work has also resulted in a variety of "const"ifications of - lots of the code, especially "_cmp" operations which should normally - be prototyped with "const" parameters anyway. - [Geoff Thorpe] - - *) When generating bytes for the first time in md_rand.c, 'stir the pool' - by seeding with STATE_SIZE dummy bytes (with zero entropy count). - (The PRNG state consists of two parts, the large pool 'state' and 'md', - where all of 'md' is used each time the PRNG is used, but 'state' - is used only indexed by a cyclic counter. As entropy may not be - well distributed from the beginning, 'md' is important as a - chaining variable. However, the output function chains only half - of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains - all of 'md', and seeding with STATE_SIZE dummy bytes will result - in all of 'state' being rewritten, with the new values depending - on virtually all of 'md'. This overcomes the 80 bit limitation.) - [Bodo Moeller] - - *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when - the handshake is continued after ssl_verify_cert_chain(); - otherwise, if SSL_VERIFY_NONE is set, remaining error codes - can lead to 'unexplainable' connection aborts later. - [Bodo Moeller; problem tracked down by Lutz Jaenicke] - - *) Major EVP API cipher revision. - Add hooks for extra EVP features. This allows various cipher - parameters to be set in the EVP interface. Support added for variable - key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and - setting of RC2 and RC5 parameters. - - Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length - ciphers. - - Remove lots of duplicated code from the EVP library. For example *every* - cipher init() function handles the 'iv' in the same way according to the - cipher mode. They also all do nothing if the 'key' parameter is NULL and - for CFB and OFB modes they zero ctx->num. - - New functionality allows removal of S/MIME code RC2 hack. - - Most of the routines have the same form and so can be declared in terms - of macros. - - By shifting this to the top level EVP_CipherInit() it can be removed from - all individual ciphers. If the cipher wants to handle IVs or keys - differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT - flags. - - Change lots of functions like EVP_EncryptUpdate() to now return a - value: although software versions of the algorithms cannot fail - any installed hardware versions can. - [Steve Henson] - - *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if - this option is set, tolerate broken clients that send the negotiated - protocol version number instead of the requested protocol version - number. - [Bodo Moeller] - - *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag; - i.e. non-zero for export ciphersuites, zero otherwise. - Previous versions had this flag inverted, inconsistent with - rsa_tmp_cb (..._TMP_RSA_CB). - [Bodo Moeller; problem reported by Amit Chopra] - - *) Add missing DSA library text string. Work around for some IIS - key files with invalid SEQUENCE encoding. - [Steve Henson] - - *) Add a document (doc/standards.txt) that list all kinds of standards - and so on that are implemented in OpenSSL. - [Richard Levitte] - - *) Enhance c_rehash script. Old version would mishandle certificates - with the same subject name hash and wouldn't handle CRLs at all. - Added -fingerprint option to crl utility, to support new c_rehash - features. - [Steve Henson] - - *) Eliminate non-ANSI declarations in crypto.h and stack.h. - [Ulf Möller] - - *) Fix for SSL server purpose checking. Server checking was - rejecting certificates which had extended key usage present - but no ssl client purpose. - [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>] - - *) Make PKCS#12 code work with no password. The PKCS#12 spec - is a little unclear about how a blank password is handled. - Since the password in encoded as a BMPString with terminating - double NULL a zero length password would end up as just the - double NULL. However no password at all is different and is - handled differently in the PKCS#12 key generation code. NS - treats a blank password as zero length. MSIE treats it as no - password on export: but it will try both on import. We now do - the same: PKCS12_parse() tries zero length and no password if - the password is set to "" or NULL (NULL is now a valid password: - it wasn't before) as does the pkcs12 application. - [Steve Henson] - - *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use - perror when PEM_read_bio_X509_REQ fails, the error message must - be obtained from the error queue. - [Bodo Moeller] - - *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing - it in ERR_remove_state if appropriate, and change ERR_get_state - accordingly to avoid race conditions (this is necessary because - thread_hash is no longer constant once set). - [Bodo Moeller] - - *) Bugfix for linux-elf makefile.one. - [Ulf Möller] - - *) RSA_get_default_method() will now cause a default - RSA_METHOD to be chosen if one doesn't exist already. - Previously this was only set during a call to RSA_new() - or RSA_new_method(NULL) meaning it was possible for - RSA_get_default_method() to return NULL. - [Geoff Thorpe] - - *) Added native name translation to the existing DSO code - that will convert (if the flag to do so is set) filenames - that are sufficiently small and have no path information - into a canonical native form. Eg. "blah" converted to - "libblah.so" or "blah.dll" etc. - [Geoff Thorpe] - - *) New function ERR_error_string_n(e, buf, len) which is like - ERR_error_string(e, buf), but writes at most 'len' bytes - including the 0 terminator. For ERR_error_string_n, 'buf' - may not be NULL. - [Damien Miller <djm@mindrot.org>, Bodo Moeller] - - *) CONF library reworked to become more general. A new CONF - configuration file reader "class" is implemented as well as a - new functions (NCONF_*, for "New CONF") to handle it. The now - old CONF_* functions are still there, but are reimplemented to - work in terms of the new functions. Also, a set of functions - to handle the internal storage of the configuration data is - provided to make it easier to write new configuration file - reader "classes" (I can definitely see something reading a - configuration file in XML format, for example), called _CONF_*, - or "the configuration storage API"... - - The new configuration file reading functions are: - - NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, - NCONF_get_section, NCONF_get_string, NCONF_get_numbre - - NCONF_default, NCONF_WIN32 - - NCONF_dump_fp, NCONF_dump_bio - - NCONF_default and NCONF_WIN32 are method (or "class") choosers, - NCONF_new creates a new CONF object. This works in the same way - as other interfaces in OpenSSL, like the BIO interface. - NCONF_dump_* dump the internal storage of the configuration file, - which is useful for debugging. All other functions take the same - arguments as the old CONF_* functions wth the exception of the - first that must be a `CONF *' instead of a `LHASH *'. - - To make it easer to use the new classes with the old CONF_* functions, - the function CONF_set_default_method is provided. - [Richard Levitte] - - *) Add '-tls1' option to 'openssl ciphers', which was already - mentioned in the documentation but had not been implemented. - (This option is not yet really useful because even the additional - experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) - [Bodo Moeller] - - *) Initial DSO code added into libcrypto for letting OpenSSL (and - OpenSSL-based applications) load shared libraries and bind to - them in a portable way. - [Geoff Thorpe, with contributions from Richard Levitte] - - Changes between 0.9.5 and 0.9.5a [1 Apr 2000] - - *) Make sure _lrotl and _lrotr are only used with MSVC. - - *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status - (the default implementation of RAND_status). - - *) Rename openssl x509 option '-crlext', which was added in 0.9.5, - to '-clrext' (= clear extensions), as intended and documented. - [Bodo Moeller; inconsistency pointed out by Michael Attili - <attili@amaxo.com>] - - *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length - was larger than the MD block size. - [Steve Henson, pointed out by Yost William <YostW@tce.com>] - - *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument - fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() - using the passed key: if the passed key was a private key the result - of X509_print(), for example, would be to print out all the private key - components. - [Steve Henson] - - *) des_quad_cksum() byte order bug fix. - [Ulf Möller, using the problem description in krb4-0.9.7, where - the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>] - - *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly - discouraged. - [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>] - - *) For easily testing in shell scripts whether some command - 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' - returns with exit code 0 iff no command of the given name is available. - 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, - the output goes to stdout and nothing is printed to stderr. - Additional arguments are always ignored. - - Since for each cipher there is a command of the same name, - the 'no-cipher' compilation switches can be tested this way. - - ('openssl no-XXX' is not able to detect pseudo-commands such - as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) - [Bodo Moeller] - - *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration. - [Bodo Moeller] - - *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE - is set; it will be thrown away anyway because each handshake creates - its own key. - ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition - to parameters -- in previous versions (since OpenSSL 0.9.3) the - 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining - you effectivly got SSL_OP_SINGLE_DH_USE when using this macro. - [Bodo Moeller] - - *) New s_client option -ign_eof: EOF at stdin is ignored, and - 'Q' and 'R' lose their special meanings (quit/renegotiate). - This is part of what -quiet does; unlike -quiet, -ign_eof - does not suppress any output. - [Richard Levitte] - - *) Add compatibility options to the purpose and trust code. The - purpose X509_PURPOSE_ANY is "any purpose" which automatically - accepts a certificate or CA, this was the previous behaviour, - with all the associated security issues. - - X509_TRUST_COMPAT is the old trust behaviour: only and - automatically trust self signed roots in certificate store. A - new trust setting X509_TRUST_DEFAULT is used to specify that - a purpose has no associated trust setting and it should instead - use the value in the default purpose. - [Steve Henson] - - *) Fix the PKCS#8 DSA private key code so it decodes keys again - and fix a memory leak. - [Steve Henson] - - *) In util/mkerr.pl (which implements 'make errors'), preserve - reason strings from the previous version of the .c file, as - the default to have only downcase letters (and digits) in - automatically generated reasons codes is not always appropriate. - [Bodo Moeller] - - *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table - using strerror. Previously, ERR_reason_error_string() returned - library names as reason strings for SYSerr; but SYSerr is a special - case where small numbers are errno values, not library numbers. - [Bodo Moeller] - - *) Add '-dsaparam' option to 'openssl dhparam' application. This - converts DSA parameters into DH parameters. (When creating parameters, - DSA_generate_parameters is used.) - [Bodo Moeller] - - *) Include 'length' (recommended exponent length) in C code generated - by 'openssl dhparam -C'. - [Bodo Moeller] - - *) The second argument to set_label in perlasm was already being used - so couldn't be used as a "file scope" flag. Moved to third argument - which was free. - [Steve Henson] - - *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes - instead of RAND_bytes for encryption IVs and salts. - [Bodo Moeller] - - *) Include RAND_status() into RAND_METHOD instead of implementing - it only for md_rand.c Otherwise replacing the PRNG by calling - RAND_set_rand_method would be impossible. - [Bodo Moeller] - - *) Don't let DSA_generate_key() enter an infinite loop if the random - number generation fails. - [Bodo Moeller] - - *) New 'rand' application for creating pseudo-random output. - [Bodo Moeller] - - *) Added configuration support for Linux/IA64 - [Rolf Haberrecker <rolf@suse.de>] - - *) Assembler module support for Mingw32. - [Ulf Möller] - - *) Shared library support for HPUX (in shlib/). - [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous] - - *) Shared library support for Solaris gcc. - [Lutz Behnke <behnke@trustcenter.de>] - - Changes between 0.9.4 and 0.9.5 [28 Feb 2000] - - *) PKCS7_encrypt() was adding text MIME headers twice because they - were added manually and by SMIME_crlf_copy(). - [Steve Henson] - - *) In bntest.c don't call BN_rand with zero bits argument. - [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>] - - *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] - case was implemented. This caused BN_div_recp() to fail occasionally. - [Ulf Möller] - - *) Add an optional second argument to the set_label() in the perl - assembly language builder. If this argument exists and is set - to 1 it signals that the assembler should use a symbol whose - scope is the entire file, not just the current function. This - is needed with MASM which uses the format label:: for this scope. - [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>] - - *) Change the ASN1 types so they are typedefs by default. Before - almost all types were #define'd to ASN1_STRING which was causing - STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) - for example. - [Steve Henson] - - *) Change names of new functions to the new get1/get0 naming - convention: After 'get1', the caller owns a reference count - and has to call ..._free; 'get0' returns a pointer to some - data structure without incrementing reference counters. - (Some of the existing 'get' functions increment a reference - counter, some don't.) - Similarly, 'set1' and 'add1' functions increase reference - counters or duplicate objects. - [Steve Henson] - - *) Allow for the possibility of temp RSA key generation failure: - the code used to assume it always worked and crashed on failure. - [Steve Henson] - - *) Fix potential buffer overrun problem in BIO_printf(). - [Ulf Möller, using public domain code by Patrick Powell; problem - pointed out by David Sacerdote <das33@cornell.edu>] - - *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions - RAND_egd() and RAND_status(). In the command line application, - the EGD socket can be specified like a seed file using RANDFILE - or -rand. - [Ulf Möller] - - *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. - Some CAs (e.g. Verisign) distribute certificates in this form. - [Steve Henson] - - *) Remove the SSL_ALLOW_ADH compile option and set the default cipher - list to exclude them. This means that no special compilation option - is needed to use anonymous DH: it just needs to be included in the - cipher list. - [Steve Henson] - - *) Change the EVP_MD_CTX_type macro so its meaning consistent with - EVP_MD_type. The old functionality is available in a new macro called - EVP_MD_md(). Change code that uses it and update docs. - [Steve Henson] - - *) ..._ctrl functions now have corresponding ..._callback_ctrl functions - where the 'void *' argument is replaced by a function pointer argument. - Previously 'void *' was abused to point to functions, which works on - many platforms, but is not correct. As these functions are usually - called by macros defined in OpenSSL header files, most source code - should work without changes. - [Richard Levitte] - - *) <openssl/opensslconf.h> (which is created by Configure) now contains - sections with information on -D... compiler switches used for - compiling the library so that applications can see them. To enable - one of these sections, a pre-processor symbol OPENSSL_..._DEFINES - must be defined. E.g., - #define OPENSSL_ALGORITHM_DEFINES - #include <openssl/opensslconf.h> - defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc. - [Richard Levitte, Ulf and Bodo Möller] - - *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS - record layer. - [Bodo Moeller] - - *) Change the 'other' type in certificate aux info to a STACK_OF - X509_ALGOR. Although not an AlgorithmIdentifier as such it has - the required ASN1 format: arbitrary types determined by an OID. - [Steve Henson] - - *) Add some PEM_write_X509_REQ_NEW() functions and a command line - argument to 'req'. This is not because the function is newer or - better than others it just uses the work 'NEW' in the certificate - request header lines. Some software needs this. - [Steve Henson] - - *) Reorganise password command line arguments: now passwords can be - obtained from various sources. Delete the PEM_cb function and make - it the default behaviour: i.e. if the callback is NULL and the - usrdata argument is not NULL interpret it as a null terminated pass - phrase. If usrdata and the callback are NULL then the pass phrase - is prompted for as usual. - [Steve Henson] - - *) Add support for the Compaq Atalla crypto accelerator. If it is installed, - the support is automatically enabled. The resulting binaries will - autodetect the card and use it if present. - [Ben Laurie and Compaq Inc.] - - *) Work around for Netscape hang bug. This sends certificate request - and server done in one record. Since this is perfectly legal in the - SSL/TLS protocol it isn't a "bug" option and is on by default. See - the bugs/SSLv3 entry for more info. - [Steve Henson] - - *) HP-UX tune-up: new unified configs, HP C compiler bug workaround. - [Andy Polyakov] - - *) Add -rand argument to smime and pkcs12 applications and read/write - of seed file. - [Steve Henson] - - *) New 'passwd' tool for crypt(3) and apr1 password hashes. - [Bodo Moeller] - - *) Add command line password options to the remaining applications. - [Steve Henson] - - *) Bug fix for BN_div_recp() for numerators with an even number of - bits. - [Ulf Möller] - - *) More tests in bntest.c, and changed test_bn output. - [Ulf Möller] - - *) ./config recognizes MacOS X now. - [Andy Polyakov] - - *) Bug fix for BN_div() when the first words of num and divsor are - equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0). - [Ulf Möller] - - *) Add support for various broken PKCS#8 formats, and command line - options to produce them. - [Steve Henson] - - *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to - get temporary BIGNUMs from a BN_CTX. - [Ulf Möller] - - *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() - for p == 0. - [Ulf Möller] - - *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and - include a #define from the old name to the new. The original intent - was that statically linked binaries could for example just call - SSLeay_add_all_ciphers() to just add ciphers to the table and not - link with digests. This never worked becayse SSLeay_add_all_digests() - and SSLeay_add_all_ciphers() were in the same source file so calling - one would link with the other. They are now in separate source files. - [Steve Henson] - - *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. - [Steve Henson] - - *) Use a less unusual form of the Miller-Rabin primality test (it used - a binary algorithm for exponentiation integrated into the Miller-Rabin - loop, our standard modexp algorithms are faster). - [Bodo Moeller] - - *) Support for the EBCDIC character set completed. - [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>] - - *) Source code cleanups: use const where appropriate, eliminate casts, - use void * instead of char * in lhash. - [Ulf Möller] - - *) Bugfix: ssl3_send_server_key_exchange was not restartable - (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of - this the server could overwrite ephemeral keys that the client - has already seen). - [Bodo Moeller] - - *) Turn DSA_is_prime into a macro that calls BN_is_prime, - using 50 iterations of the Rabin-Miller test. - - DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 - iterations of the Rabin-Miller test as required by the appendix - to FIPS PUB 186[-1]) instead of DSA_is_prime. - As BN_is_prime_fasttest includes trial division, DSA parameter - generation becomes much faster. - - This implies a change for the callback functions in DSA_is_prime - and DSA_generate_parameters: The callback function is called once - for each positive witness in the Rabin-Miller test, not just - occasionally in the inner loop; and the parameters to the - callback function now provide an iteration count for the outer - loop rather than for the current invocation of the inner loop. - DSA_generate_parameters additionally can call the callback - function with an 'iteration count' of -1, meaning that a - candidate has passed the trial division test (when q is generated - from an application-provided seed, trial division is skipped). - [Bodo Moeller] - - *) New function BN_is_prime_fasttest that optionally does trial - division before starting the Rabin-Miller test and has - an additional BN_CTX * argument (whereas BN_is_prime always - has to allocate at least one BN_CTX). - 'callback(1, -1, cb_arg)' is called when a number has passed the - trial division stage. - [Bodo Moeller] - - *) Fix for bug in CRL encoding. The validity dates weren't being handled - as ASN1_TIME. - [Steve Henson] - - *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file. - [Steve Henson] - - *) New function BN_pseudo_rand(). - [Ulf Möller] - - *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) - bignum version of BN_from_montgomery() with the working code from - SSLeay 0.9.0 (the word based version is faster anyway), and clean up - the comments. - [Ulf Möller] - - *) Avoid a race condition in s2_clnt.c (function get_server_hello) that - made it impossible to use the same SSL_SESSION data structure in - SSL2 clients in multiple threads. - [Bodo Moeller] - - *) The return value of RAND_load_file() no longer counts bytes obtained - by stat(). RAND_load_file(..., -1) is new and uses the complete file - to seed the PRNG (previously an explicit byte count was required). - [Ulf Möller, Bodo Möller] - - *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes - used (char *) instead of (void *) and had casts all over the place. - [Steve Henson] - - *) Make BN_generate_prime() return NULL on error if ret!=NULL. - [Ulf Möller] - - *) Retain source code compatibility for BN_prime_checks macro: - BN_is_prime(..., BN_prime_checks, ...) now uses - BN_prime_checks_for_size to determine the appropriate number of - Rabin-Miller iterations. - [Ulf Möller] - - *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to - DH_CHECK_P_NOT_SAFE_PRIME. - (Check if this is true? OpenPGP calls them "strong".) - [Ulf Möller] - - *) Merge the functionality of "dh" and "gendh" programs into a new program - "dhparam". The old programs are retained for now but will handle DH keys - (instead of parameters) in future. - [Steve Henson] - - *) Make the ciphers, s_server and s_client programs check the return values - when a new cipher list is set. - [Steve Henson] - - *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit - ciphers. Before when the 56bit ciphers were enabled the sorting was - wrong. - - The syntax for the cipher sorting has been extended to support sorting by - cipher-strength (using the strength_bits hard coded in the tables). - The new command is "@STRENGTH" (see also doc/apps/ciphers.pod). - - Fix a bug in the cipher-command parser: when supplying a cipher command - string with an "undefined" symbol (neither command nor alphanumeric - [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now - an error is flagged. - - Due to the strength-sorting extension, the code of the - ssl_create_cipher_list() function was completely rearranged. I hope that - the readability was also increased :-) - [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] - - *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1 - for the first serial number and places 2 in the serial number file. This - avoids problems when the root CA is created with serial number zero and - the first user certificate has the same issuer name and serial number - as the root CA. - [Steve Henson] - - *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses - the new code. Add documentation for this stuff. - [Steve Henson] - - *) Changes to X509_ATTRIBUTE utilities. These have been renamed from - X509_*() to X509at_*() on the grounds that they don't handle X509 - structures and behave in an analagous way to the X509v3 functions: - they shouldn't be called directly but wrapper functions should be used - instead. - - So we also now have some wrapper functions that call the X509at functions - when passed certificate requests. (TO DO: similar things can be done with - PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other - things. Some of these need some d2i or i2d and print functionality - because they handle more complex structures.) - [Steve Henson] - - *) Add missing #ifndefs that caused missing symbols when building libssl - as a shared library without RSA. Use #ifndef NO_SSL2 instead of - NO_RSA in ssl/s2*.c. - [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller] - - *) Precautions against using the PRNG uninitialized: RAND_bytes() now - has a return value which indicates the quality of the random data - (1 = ok, 0 = not seeded). Also an error is recorded on the thread's - error queue. New function RAND_pseudo_bytes() generates output that is - guaranteed to be unique but not unpredictable. RAND_add is like - RAND_seed, but takes an extra argument for an entropy estimate - (RAND_seed always assumes full entropy). - [Ulf Möller] - - *) Do more iterations of Rabin-Miller probable prime test (specifically, - 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes - instead of only 2 for all lengths; see BN_prime_checks_for_size definition - in crypto/bn/bn_prime.c for the complete table). This guarantees a - false-positive rate of at most 2^-80 for random input. - [Bodo Moeller] - - *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. - [Bodo Moeller] - - *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain - in the 0.9.5 release), this returns the chain - from an X509_CTX structure with a dup of the stack and all - the X509 reference counts upped: so the stack will exist - after X509_CTX_cleanup() has been called. Modify pkcs12.c - to use this. - - Also make SSL_SESSION_print() print out the verify return - code. - [Steve Henson] - - *) Add manpage for the pkcs12 command. Also change the default - behaviour so MAC iteration counts are used unless the new - -nomaciter option is used. This improves file security and - only older versions of MSIE (4.0 for example) need it. - [Steve Henson] - - *) Honor the no-xxx Configure options when creating .DEF files. - [Ulf Möller] - - *) Add PKCS#10 attributes to field table: challengePassword, - unstructuredName and unstructuredAddress. These are taken from - draft PKCS#9 v2.0 but are compatible with v1.2 provided no - international characters are used. - - More changes to X509_ATTRIBUTE code: allow the setting of types - based on strings. Remove the 'loc' parameter when adding - attributes because these will be a SET OF encoding which is sorted - in ASN1 order. - [Steve Henson] - - *) Initial changes to the 'req' utility to allow request generation - automation. This will allow an application to just generate a template - file containing all the field values and have req construct the - request. - - Initial support for X509_ATTRIBUTE handling. Stacks of these are - used all over the place including certificate requests and PKCS#7 - structures. They are currently handled manually where necessary with - some primitive wrappers for PKCS#7. The new functions behave in a - manner analogous to the X509 extension functions: they allow - attributes to be looked up by NID and added. - - Later something similar to the X509V3 code would be desirable to - automatically handle the encoding, decoding and printing of the - more complex types. The string types like challengePassword can - be handled by the string table functions. - - Also modified the multi byte string table handling. Now there is - a 'global mask' which masks out certain types. The table itself - can use the flag STABLE_NO_MASK to ignore the mask setting: this - is useful when for example there is only one permissible type - (as in countryName) and using the mask might result in no valid - types at all. - [Steve Henson] - - *) Clean up 'Finished' handling, and add functions SSL_get_finished and - SSL_get_peer_finished to allow applications to obtain the latest - Finished messages sent to the peer or expected from the peer, - respectively. (SSL_get_peer_finished is usually the Finished message - actually received from the peer, otherwise the protocol will be aborted.) - - As the Finished message are message digests of the complete handshake - (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can - be used for external authentication procedures when the authentication - provided by SSL/TLS is not desired or is not enough. - [Bodo Moeller] - - *) Enhanced support for Alpha Linux is added. Now ./config checks if - the host supports BWX extension and if Compaq C is present on the - $PATH. Just exploiting of the BWX extension results in 20-30% - performance kick for some algorithms, e.g. DES and RC4 to mention - a couple. Compaq C in turn generates ~20% faster code for MD5 and - SHA1. - [Andy Polyakov] - - *) Add support for MS "fast SGC". This is arguably a violation of the - SSL3/TLS protocol. Netscape SGC does two handshakes: the first with - weak crypto and after checking the certificate is SGC a second one - with strong crypto. MS SGC stops the first handshake after receiving - the server certificate message and sends a second client hello. Since - a server will typically do all the time consuming operations before - expecting any further messages from the client (server key exchange - is the most expensive) there is little difference between the two. - - To get OpenSSL to support MS SGC we have to permit a second client - hello message after we have sent server done. In addition we have to - reset the MAC if we do get this second client hello. - [Steve Henson] - - *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide - if a DER encoded private key is RSA or DSA traditional format. Changed - d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" - format DER encoded private key. Newer code should use PKCS#8 format which - has the key type encoded in the ASN1 structure. Added DER private key - support to pkcs8 application. - [Steve Henson] - - *) SSL 3/TLS 1 servers now don't request certificates when an anonymous - ciphersuites has been selected (as required by the SSL 3/TLS 1 - specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT - is set, we interpret this as a request to violate the specification - (the worst that can happen is a handshake failure, and 'correct' - behaviour would result in a handshake failure anyway). - [Bodo Moeller] - - *) In SSL_CTX_add_session, take into account that there might be multiple - SSL_SESSION structures with the same session ID (e.g. when two threads - concurrently obtain them from an external cache). - The internal cache can handle only one SSL_SESSION with a given ID, - so if there's a conflict, we now throw out the old one to achieve - consistency. - [Bodo Moeller] - - *) Add OIDs for idea and blowfish in CBC mode. This will allow both - to be used in PKCS#5 v2.0 and S/MIME. Also add checking to - some routines that use cipher OIDs: some ciphers do not have OIDs - defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for - example. - [Steve Henson] - - *) Simplify the trust setting structure and code. Now we just have - two sequences of OIDs for trusted and rejected settings. These will - typically have values the same as the extended key usage extension - and any application specific purposes. - - The trust checking code now has a default behaviour: it will just - check for an object with the same NID as the passed id. Functions can - be provided to override either the default behaviour or the behaviour - for a given id. SSL client, server and email already have functions - in place for compatibility: they check the NID and also return "trusted" - if the certificate is self signed. - [Steve Henson] - - *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the - traditional format into an EVP_PKEY structure. - [Steve Henson] - - *) Add a password callback function PEM_cb() which either prompts for - a password if usr_data is NULL or otherwise assumes it is a null - terminated password. Allow passwords to be passed on command line - environment or config files in a few more utilities. - [Steve Henson] - - *) Add a bunch of DER and PEM functions to handle PKCS#8 format private - keys. Add some short names for PKCS#8 PBE algorithms and allow them - to be specified on the command line for the pkcs8 and pkcs12 utilities. - Update documentation. - [Steve Henson] - - *) Support for ASN1 "NULL" type. This could be handled before by using - ASN1_TYPE but there wasn't any function that would try to read a NULL - and produce an error if it couldn't. For compatibility we also have - ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and - don't allocate anything because they don't need to. - [Steve Henson] - - *) Initial support for MacOS is now provided. Examine INSTALL.MacOS - for details. - [Andy Polyakov, Roy Woods <roy@centicsystems.ca>] - - *) Rebuild of the memory allocation routines used by OpenSSL code and - possibly others as well. The purpose is to make an interface that - provide hooks so anyone can build a separate set of allocation and - deallocation routines to be used by OpenSSL, for example memory - pool implementations, or something else, which was previously hard - since Malloc(), Realloc() and Free() were defined as macros having - the values malloc, realloc and free, respectively (except for Win32 - compilations). The same is provided for memory debugging code. - OpenSSL already comes with functionality to find memory leaks, but - this gives people a chance to debug other memory problems. - - With these changes, a new set of functions and macros have appeared: - - CRYPTO_set_mem_debug_functions() [F] - CRYPTO_get_mem_debug_functions() [F] - CRYPTO_dbg_set_options() [F] - CRYPTO_dbg_get_options() [F] - CRYPTO_malloc_debug_init() [M] - - The memory debug functions are NULL by default, unless the library - is compiled with CRYPTO_MDEBUG or friends is defined. If someone - wants to debug memory anyway, CRYPTO_malloc_debug_init() (which - gives the standard debugging functions that come with OpenSSL) or - CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions - provided by the library user) must be used. When the standard - debugging functions are used, CRYPTO_dbg_set_options can be used to - request additional information: - CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting - the CRYPTO_MDEBUG_xxx macro when compiling the library. - - Also, things like CRYPTO_set_mem_functions will always give the - expected result (the new set of functions is used for allocation - and deallocation) at all times, regardless of platform and compiler - options. - - To finish it up, some functions that were never use in any other - way than through macros have a new API and new semantic: - - CRYPTO_dbg_malloc() - CRYPTO_dbg_realloc() - CRYPTO_dbg_free() - - All macros of value have retained their old syntax. - [Richard Levitte and Bodo Moeller] - - *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the - ordering of SMIMECapabilities wasn't in "strength order" and there - was a missing NULL in the AlgorithmIdentifier for the SHA1 signature - algorithm. - [Steve Henson] - - *) Some ASN1 types with illegal zero length encoding (INTEGER, - ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. - [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson] - - *) Merge in my S/MIME library for OpenSSL. This provides a simple - S/MIME API on top of the PKCS#7 code, a MIME parser (with enough - functionality to handle multipart/signed properly) and a utility - called 'smime' to call all this stuff. This is based on code I - originally wrote for Celo who have kindly allowed it to be - included in OpenSSL. - [Steve Henson] - - *) Add variants des_set_key_checked and des_set_key_unchecked of - des_set_key (aka des_key_sched). Global variable des_check_key - decides which of these is called by des_set_key; this way - des_check_key behaves as it always did, but applications and - the library itself, which was buggy for des_check_key == 1, - have a cleaner way to pick the version they need. - [Bodo Moeller] - - *) New function PKCS12_newpass() which changes the password of a - PKCS12 structure. - [Steve Henson] - - *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and - dynamic mix. In both cases the ids can be used as an index into the - table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() - functions so they accept a list of the field values and the - application doesn't need to directly manipulate the X509_TRUST - structure. - [Steve Henson] - - *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't - need initialising. - [Steve Henson] - - *) Modify the way the V3 extension code looks up extensions. This now - works in a similar way to the object code: we have some "standard" - extensions in a static table which is searched with OBJ_bsearch() - and the application can add dynamic ones if needed. The file - crypto/x509v3/ext_dat.h now has the info: this file needs to be - updated whenever a new extension is added to the core code and kept - in ext_nid order. There is a simple program 'tabtest.c' which checks - this. New extensions are not added too often so this file can readily - be maintained manually. - - There are two big advantages in doing things this way. The extensions - can be looked up immediately and no longer need to be "added" using - X509V3_add_standard_extensions(): this function now does nothing. - [Side note: I get *lots* of email saying the extension code doesn't - work because people forget to call this function] - Also no dynamic allocation is done unless new extensions are added: - so if we don't add custom extensions there is no need to call - X509V3_EXT_cleanup(). - [Steve Henson] - - *) Modify enc utility's salting as follows: make salting the default. Add a - magic header, so unsalted files fail gracefully instead of just decrypting - to garbage. This is because not salting is a big security hole, so people - should be discouraged from doing it. - [Ben Laurie] - - *) Fixes and enhancements to the 'x509' utility. It allowed a message - digest to be passed on the command line but it only used this - parameter when signing a certificate. Modified so all relevant - operations are affected by the digest parameter including the - -fingerprint and -x509toreq options. Also -x509toreq choked if a - DSA key was used because it didn't fix the digest. - [Steve Henson] - - *) Initial certificate chain verify code. Currently tests the untrusted - certificates for consistency with the verify purpose (which is set - when the X509_STORE_CTX structure is set up) and checks the pathlength. - - There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: - this is because it will reject chains with invalid extensions whereas - every previous version of OpenSSL and SSLeay made no checks at all. - - Trust code: checks the root CA for the relevant trust settings. Trust - settings have an initial value consistent with the verify purpose: e.g. - if the verify purpose is for SSL client use it expects the CA to be - trusted for SSL client use. However the default value can be changed to - permit custom trust settings: one example of this would be to only trust - certificates from a specific "secure" set of CAs. - - Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions - which should be used for version portability: especially since the - verify structure is likely to change more often now. - - SSL integration. Add purpose and trust to SSL_CTX and SSL and functions - to set them. If not set then assume SSL clients will verify SSL servers - and vice versa. - - Two new options to the verify program: -untrusted allows a set of - untrusted certificates to be passed in and -purpose which sets the - intended purpose of the certificate. If a purpose is set then the - new chain verify code is used to check extension consistency. - [Steve Henson] - - *) Support for the authority information access extension. - [Steve Henson] - - *) Modify RSA and DSA PEM read routines to transparently handle - PKCS#8 format private keys. New *_PUBKEY_* functions that handle - public keys in a format compatible with certificate - SubjectPublicKeyInfo structures. Unfortunately there were already - functions called *_PublicKey_* which used various odd formats so - these are retained for compatibility: however the DSA variants were - never in a public release so they have been deleted. Changed dsa/rsa - utilities to handle the new format: note no releases ever handled public - keys so we should be OK. - - The primary motivation for this change is to avoid the same fiasco - that dogs private keys: there are several incompatible private key - formats some of which are standard and some OpenSSL specific and - require various evil hacks to allow partial transparent handling and - even then it doesn't work with DER formats. Given the option anything - other than PKCS#8 should be dumped: but the other formats have to - stay in the name of compatibility. - - With public keys and the benefit of hindsight one standard format - is used which works with EVP_PKEY, RSA or DSA structures: though - it clearly returns an error if you try to read the wrong kind of key. - - Added a -pubkey option to the 'x509' utility to output the public key. - Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*() - (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add - EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*()) - that do the same as the EVP_PKEY_assign_*() except they up the - reference count of the added key (they don't "swallow" the - supplied key). - [Steve Henson] - - *) Fixes to crypto/x509/by_file.c the code to read in certificates and - CRLs would fail if the file contained no certificates or no CRLs: - added a new function to read in both types and return the number - read: this means that if none are read it will be an error. The - DER versions of the certificate and CRL reader would always fail - because it isn't possible to mix certificates and CRLs in DER format - without choking one or the other routine. Changed this to just read - a certificate: this is the best we can do. Also modified the code - in apps/verify.c to take notice of return codes: it was previously - attempting to read in certificates from NULL pointers and ignoring - any errors: this is one reason why the cert and CRL reader seemed - to work. It doesn't check return codes from the default certificate - routines: these may well fail if the certificates aren't installed. - [Steve Henson] - - *) Code to support otherName option in GeneralName. - [Steve Henson] - - *) First update to verify code. Change the verify utility - so it warns if it is passed a self signed certificate: - for consistency with the normal behaviour. X509_verify - has been modified to it will now verify a self signed - certificate if *exactly* the same certificate appears - in the store: it was previously impossible to trust a - single self signed certificate. This means that: - openssl verify ss.pem - now gives a warning about a self signed certificate but - openssl verify -CAfile ss.pem ss.pem - is OK. - [Steve Henson] - - *) For servers, store verify_result in SSL_SESSION data structure - (and add it to external session representation). - This is needed when client certificate verifications fails, - but an application-provided verification callback (set by - SSL_CTX_set_cert_verify_callback) allows accepting the session - anyway (i.e. leaves x509_store_ctx->error != X509_V_OK - but returns 1): When the session is reused, we have to set - ssl->verify_result to the appropriate error code to avoid - security holes. - [Bodo Moeller, problem pointed out by Lutz Jaenicke] - - *) Fix a bug in the new PKCS#7 code: it didn't consider the - case in PKCS7_dataInit() where the signed PKCS7 structure - didn't contain any existing data because it was being created. - [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson] - - *) Add a salt to the key derivation routines in enc.c. This - forms the first 8 bytes of the encrypted file. Also add a - -S option to allow a salt to be input on the command line. - [Steve Henson] - - *) New function X509_cmp(). Oddly enough there wasn't a function - to compare two certificates. We do this by working out the SHA1 - hash and comparing that. X509_cmp() will be needed by the trust - code. - [Steve Henson] - - *) SSL_get1_session() is like SSL_get_session(), but increments - the reference count in the SSL_SESSION returned. - [Geoff Thorpe <geoff@eu.c2.net>] - - *) Fix for 'req': it was adding a null to request attributes. - Also change the X509_LOOKUP and X509_INFO code to handle - certificate auxiliary information. - [Steve Henson] - - *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document - the 'enc' command. - [Steve Henson] - - *) Add the possibility to add extra information to the memory leak - detecting output, to form tracebacks, showing from where each - allocation was originated: CRYPTO_push_info("constant string") adds - the string plus current file name and line number to a per-thread - stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() - is like calling CYRPTO_pop_info() until the stack is empty. - Also updated memory leak detection code to be multi-thread-safe. - [Richard Levitte] - - *) Add options -text and -noout to pkcs7 utility and delete the - encryption options which never did anything. Update docs. - [Steve Henson] - - *) Add options to some of the utilities to allow the pass phrase - to be included on either the command line (not recommended on - OSes like Unix) or read from the environment. Update the - manpages and fix a few bugs. - [Steve Henson] - - *) Add a few manpages for some of the openssl commands. - [Steve Henson] - - *) Fix the -revoke option in ca. It was freeing up memory twice, - leaking and not finding already revoked certificates. - [Steve Henson] - - *) Extensive changes to support certificate auxiliary information. - This involves the use of X509_CERT_AUX structure and X509_AUX - functions. An X509_AUX function such as PEM_read_X509_AUX() - can still read in a certificate file in the usual way but it - will also read in any additional "auxiliary information". By - doing things this way a fair degree of compatibility can be - retained: existing certificates can have this information added - using the new 'x509' options. - - Current auxiliary information includes an "alias" and some trust - settings. The trust settings will ultimately be used in enhanced - certificate chain verification routines: currently a certificate - can only be trusted if it is self signed and then it is trusted - for all purposes. - [Steve Henson] - - *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD). - The problem was that one of the replacement routines had not been working - since SSLeay releases. For now the offending routine has been replaced - with non-optimised assembler. Even so, this now gives around 95% - performance improvement for 1024 bit RSA signs. - [Mark Cox] - - *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 - handling. Most clients have the effective key size in bits equal to - the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. - A few however don't do this and instead use the size of the decrypted key - to determine the RC2 key length and the AlgorithmIdentifier to determine - the effective key length. In this case the effective key length can still - be 40 bits but the key length can be 168 bits for example. This is fixed - by manually forcing an RC2 key into the EVP_PKEY structure because the - EVP code can't currently handle unusual RC2 key sizes: it always assumes - the key length and effective key length are equal. - [Steve Henson] - - *) Add a bunch of functions that should simplify the creation of - X509_NAME structures. Now you should be able to do: - X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); - and have it automatically work out the correct field type and fill in - the structures. The more adventurous can try: - X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); - and it will (hopefully) work out the correct multibyte encoding. - [Steve Henson] - - *) Change the 'req' utility to use the new field handling and multibyte - copy routines. Before the DN field creation was handled in an ad hoc - way in req, ca, and x509 which was rather broken and didn't support - BMPStrings or UTF8Strings. Since some software doesn't implement - BMPStrings or UTF8Strings yet, they can be enabled using the config file - using the dirstring_type option. See the new comment in the default - openssl.cnf for more info. - [Steve Henson] - - *) Make crypto/rand/md_rand.c more robust: - - Assure unique random numbers after fork(). - - Make sure that concurrent threads access the global counter and - md serializably so that we never lose entropy in them - or use exactly the same state in multiple threads. - Access to the large state is not always serializable because - the additional locking could be a performance killer, and - md should be large enough anyway. - [Bodo Moeller] - - *) New file apps/app_rand.c with commonly needed functionality - for handling the random seed file. - - Use the random seed file in some applications that previously did not: - ca, - dsaparam -genkey (which also ignored its '-rand' option), - s_client, - s_server, - x509 (when signing). - Except on systems with /dev/urandom, it is crucial to have a random - seed file at least for key creation, DSA signing, and for DH exchanges; - for RSA signatures we could do without one. - - gendh and gendsa (unlike genrsa) used to read only the first byte - of each file listed in the '-rand' option. The function as previously - found in genrsa is now in app_rand.c and is used by all programs - that support '-rand'. - [Bodo Moeller] - - *) In RAND_write_file, use mode 0600 for creating files; - don't just chmod when it may be too late. - [Bodo Moeller] - - *) Report an error from X509_STORE_load_locations - when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. - [Bill Perry] - - *) New function ASN1_mbstring_copy() this copies a string in either - ASCII, Unicode, Universal (4 bytes per character) or UTF8 format - into an ASN1_STRING type. A mask of permissible types is passed - and it chooses the "minimal" type to use or an error if not type - is suitable. - [Steve Henson] - - *) Add function equivalents to the various macros in asn1.h. The old - macros are retained with an M_ prefix. Code inside the library can - use the M_ macros. External code (including the openssl utility) - should *NOT* in order to be "shared library friendly". - [Steve Henson] - - *) Add various functions that can check a certificate's extensions - to see if it usable for various purposes such as SSL client, - server or S/MIME and CAs of these types. This is currently - VERY EXPERIMENTAL but will ultimately be used for certificate chain - verification. Also added a -purpose flag to x509 utility to - print out all the purposes. - [Steve Henson] - - *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated - functions. - [Steve Henson] - - *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search - for, obtain and decode and extension and obtain its critical flag. - This allows all the necessary extension code to be handled in a - single function call. - [Steve Henson] - - *) RC4 tune-up featuring 30-40% performance improvement on most RISC - platforms. See crypto/rc4/rc4_enc.c for further details. - [Andy Polyakov] - - *) New -noout option to asn1parse. This causes no output to be produced - its main use is when combined with -strparse and -out to extract data - from a file (which may not be in ASN.1 format). - [Steve Henson] - - *) Fix for pkcs12 program. It was hashing an invalid certificate pointer - when producing the local key id. - [Richard Levitte <levitte@stacken.kth.se>] - - *) New option -dhparam in s_server. This allows a DH parameter file to be - stated explicitly. If it is not stated then it tries the first server - certificate file. The previous behaviour hard coded the filename - "server.pem". - [Steve Henson] - - *) Add -pubin and -pubout options to the rsa and dsa commands. These allow - a public key to be input or output. For example: - openssl rsa -in key.pem -pubout -out pubkey.pem - Also added necessary DSA public key functions to handle this. - [Steve Henson] - - *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained - in the message. This was handled by allowing - X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. - [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>] - - *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null - to the end of the strings whereas this didn't. This would cause problems - if strings read with d2i_ASN1_bytes() were later modified. - [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>] - - *) Fix for base64 decode bug. When a base64 bio reads only one line of - data and it contains EOF it will end up returning an error. This is - caused by input 46 bytes long. The cause is due to the way base64 - BIOs find the start of base64 encoded data. They do this by trying a - trial decode on each line until they find one that works. When they - do a flag is set and it starts again knowing it can pass all the - data directly through the decoder. Unfortunately it doesn't reset - the context it uses. This means that if EOF is reached an attempt - is made to pass two EOFs through the context and this causes the - resulting error. This can also cause other problems as well. As is - usual with these problems it takes *ages* to find and the fix is - trivial: move one line. - [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ] - - *) Ugly workaround to get s_client and s_server working under Windows. The - old code wouldn't work because it needed to select() on sockets and the - tty (for keypresses and to see if data could be written). Win32 only - supports select() on sockets so we select() with a 1s timeout on the - sockets and then see if any characters are waiting to be read, if none - are present then we retry, we also assume we can always write data to - the tty. This isn't nice because the code then blocks until we've - received a complete line of data and it is effectively polling the - keyboard at 1s intervals: however it's quite a bit better than not - working at all :-) A dedicated Windows application might handle this - with an event loop for example. - [Steve Henson] - - *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign - and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions - will be called when RSA_sign() and RSA_verify() are used. This is useful - if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. - For this to work properly RSA_public_decrypt() and RSA_private_encrypt() - should *not* be used: RSA_sign() and RSA_verify() must be used instead. - This necessitated the support of an extra signature type NID_md5_sha1 - for SSL signatures and modifications to the SSL library to use it instead - of calling RSA_public_decrypt() and RSA_private_encrypt(). - [Steve Henson] - - *) Add new -verify -CAfile and -CApath options to the crl program, these - will lookup a CRL issuers certificate and verify the signature in a - similar way to the verify program. Tidy up the crl program so it - no longer accesses structures directly. Make the ASN1 CRL parsing a bit - less strict. It will now permit CRL extensions even if it is not - a V2 CRL: this will allow it to tolerate some broken CRLs. - [Steve Henson] - - *) Initialize all non-automatic variables each time one of the openssl - sub-programs is started (this is necessary as they may be started - multiple times from the "OpenSSL>" prompt). - [Lennart Bang, Bodo Moeller] - - *) Preliminary compilation option RSA_NULL which disables RSA crypto without - removing all other RSA functionality (this is what NO_RSA does). This - is so (for example) those in the US can disable those operations covered - by the RSA patent while allowing storage and parsing of RSA keys and RSA - key generation. - [Steve Henson] - - *) Non-copying interface to BIO pairs. - (still largely untested) - [Bodo Moeller] - - *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive - ASCII string. This was handled independently in various places before. - [Steve Henson] - - *) New functions UTF8_getc() and UTF8_putc() that parse and generate - UTF8 strings a character at a time. - [Steve Henson] - - *) Use client_version from client hello to select the protocol - (s23_srvr.c) and for RSA client key exchange verification - (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. - [Bodo Moeller] - - *) Add various utility functions to handle SPKACs, these were previously - handled by poking round in the structure internals. Added new function - NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to - print, verify and generate SPKACs. Based on an original idea from - Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. - [Steve Henson] - - *) RIPEMD160 is operational on all platforms and is back in 'make test'. - [Andy Polyakov] - - *) Allow the config file extension section to be overwritten on the - command line. Based on an original idea from Massimiliano Pala - <madwolf@comune.modena.it>. The new option is called -extensions - and can be applied to ca, req and x509. Also -reqexts to override - the request extensions in req and -crlexts to override the crl extensions - in ca. - [Steve Henson] - - *) Add new feature to the SPKAC handling in ca. Now you can include - the same field multiple times by preceding it by "XXXX." for example: - 1.OU="Unit name 1" - 2.OU="Unit name 2" - this is the same syntax as used in the req config file. - [Steve Henson] - - *) Allow certificate extensions to be added to certificate requests. These - are specified in a 'req_extensions' option of the req section of the - config file. They can be printed out with the -text option to req but - are otherwise ignored at present. - [Steve Henson] - - *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first - data read consists of only the final block it would not decrypted because - EVP_CipherUpdate() would correctly report zero bytes had been decrypted. - A misplaced 'break' also meant the decrypted final block might not be - copied until the next read. - [Steve Henson] - - *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added - a few extra parameters to the DH structure: these will be useful if - for example we want the value of 'q' or implement X9.42 DH. - [Steve Henson] - - *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and - provides hooks that allow the default DSA functions or functions on a - "per key" basis to be replaced. This allows hardware acceleration and - hardware key storage to be handled without major modification to the - library. Also added low level modexp hooks and CRYPTO_EX structure and - associated functions. - [Steve Henson] - - *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO - as "read only": it can't be written to and the buffer it points to will - not be freed. Reading from a read only BIO is much more efficient than - a normal memory BIO. This was added because there are several times when - an area of memory needs to be read from a BIO. The previous method was - to create a memory BIO and write the data to it, this results in two - copies of the data and an O(n^2) reading algorithm. There is a new - function BIO_new_mem_buf() which creates a read only memory BIO from - an area of memory. Also modified the PKCS#7 routines to use read only - memory BIOs. - [Steve Henson] - - *) Bugfix: ssl23_get_client_hello did not work properly when called in - state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of - a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, - but a retry condition occured while trying to read the rest. - [Bodo Moeller] - - *) The PKCS7_ENC_CONTENT_new() function was setting the content type as - NID_pkcs7_encrypted by default: this was wrong since this should almost - always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle - the encrypted data type: this is a more sensible place to put it and it - allows the PKCS#12 code to be tidied up that duplicated this - functionality. - [Steve Henson] - - *) Changed obj_dat.pl script so it takes its input and output files on - the command line. This should avoid shell escape redirection problems - under Win32. - [Steve Henson] - - *) Initial support for certificate extension requests, these are included - in things like Xenroll certificate requests. Included functions to allow - extensions to be obtained and added. - [Steve Henson] - - *) -crlf option to s_client and s_server for sending newlines as - CRLF (as required by many protocols). - [Bodo Moeller] - - Changes between 0.9.3a and 0.9.4 [09 Aug 1999] - - *) Install libRSAglue.a when OpenSSL is built with RSAref. - [Ralf S. Engelschall] - - *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency. - [Andrija Antonijevic <TheAntony2@bigfoot.com>] - - *) Fix -startdate and -enddate (which was missing) arguments to 'ca' - program. - [Steve Henson] - - *) New function DSA_dup_DH, which duplicates DSA parameters/keys as - DH parameters/keys (q is lost during that conversion, but the resulting - DH parameters contain its length). - - For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is - much faster than DH_generate_parameters (which creates parameters - where p = 2*q + 1), and also the smaller q makes DH computations - much more efficient (160-bit exponentiation instead of 1024-bit - exponentiation); so this provides a convenient way to support DHE - ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of - utter importance to use - SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); - or - SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); - when such DH parameters are used, because otherwise small subgroup - attacks may become possible! - [Bodo Moeller] - - *) Avoid memory leak in i2d_DHparams. - [Bodo Moeller] - - *) Allow the -k option to be used more than once in the enc program: - this allows the same encrypted message to be read by multiple recipients. - [Steve Henson] - - *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts - an ASN1_OBJECT to a text string. If the "no_name" parameter is set then - it will always use the numerical form of the OID, even if it has a short - or long name. - [Steve Henson] - - *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp - method only got called if p,q,dmp1,dmq1,iqmp components were present, - otherwise bn_mod_exp was called. In the case of hardware keys for example - no private key components need be present and it might store extra data - in the RSA structure, which cannot be accessed from bn_mod_exp. - By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for - private key operations. - [Steve Henson] - - *) Added support for SPARC Linux. - [Andy Polyakov] - - *) pem_password_cb function type incompatibly changed from - typedef int pem_password_cb(char *buf, int size, int rwflag); - to - ....(char *buf, int size, int rwflag, void *userdata); - so that applications can pass data to their callbacks: - The PEM[_ASN1]_{read,write}... functions and macros now take an - additional void * argument, which is just handed through whenever - the password callback is called. - [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller] - - New function SSL_CTX_set_default_passwd_cb_userdata. - - Compatibility note: As many C implementations push function arguments - onto the stack in reverse order, the new library version is likely to - interoperate with programs that have been compiled with the old - pem_password_cb definition (PEM_whatever takes some data that - happens to be on the stack as its last argument, and the callback - just ignores this garbage); but there is no guarantee whatsoever that - this will work. - - *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... - (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused - problems not only on Windows, but also on some Unix platforms. - To avoid problematic command lines, these definitions are now in an - auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl - for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). - [Bodo Moeller] - - *) MIPS III/IV assembler module is reimplemented. - [Andy Polyakov] - - *) More DES library cleanups: remove references to srand/rand and - delete an unused file. - [Ulf Möller] - - *) Add support for the the free Netwide assembler (NASM) under Win32, - since not many people have MASM (ml) and it can be hard to obtain. - This is currently experimental but it seems to work OK and pass all - the tests. Check out INSTALL.W32 for info. - [Steve Henson] - - *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections - without temporary keys kept an extra copy of the server key, - and connections with temporary keys did not free everything in case - of an error. - [Bodo Moeller] - - *) New function RSA_check_key and new openssl rsa option -check - for verifying the consistency of RSA keys. - [Ulf Moeller, Bodo Moeller] - - *) Various changes to make Win32 compile work: - 1. Casts to avoid "loss of data" warnings in p5_crpt2.c - 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned - comparison" warnings. - 3. Add sk_<TYPE>_sort to DEF file generator and do make update. - [Steve Henson] - - *) Add a debugging option to PKCS#5 v2 key generation function: when - you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and - derived keys are printed to stderr. - [Steve Henson] - - *) Copy the flags in ASN1_STRING_dup(). - [Roman E. Pavlov <pre@mo.msk.ru>] - - *) The x509 application mishandled signing requests containing DSA - keys when the signing key was also DSA and the parameters didn't match. - - It was supposed to omit the parameters when they matched the signing key: - the verifying software was then supposed to automatically use the CA's - parameters if they were absent from the end user certificate. - - Omitting parameters is no longer recommended. The test was also - the wrong way round! This was probably due to unusual behaviour in - EVP_cmp_parameters() which returns 1 if the parameters match. - This meant that parameters were omitted when they *didn't* match and - the certificate was useless. Certificates signed with 'ca' didn't have - this bug. - [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>] - - *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems. - The interface is as follows: - Applications can use - CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), - CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); - "off" is now the default. - The library internally uses - CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), - CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() - to disable memory-checking temporarily. - - Some inconsistent states that previously were possible (and were - even the default) are now avoided. - - -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time - with each memory chunk allocated; this is occasionally more helpful - than just having a counter. - - -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. - - -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future - extensions. - [Bodo Moeller] - - *) Introduce "mode" for SSL structures (with defaults in SSL_CTX), - which largely parallels "options", but is for changing API behaviour, - whereas "options" are about protocol behaviour. - Initial "mode" flags are: - - SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when - a single record has been written. - SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write - retries use the same buffer location. - (But all of the contents must be - copied!) - [Bodo Moeller] - - *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options - worked. - - *) Fix problems with no-hmac etc. - [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>] - - *) New functions RSA_get_default_method(), RSA_set_method() and - RSA_get_method(). These allows replacement of RSA_METHODs without having - to mess around with the internals of an RSA structure. - [Steve Henson] - - *) Fix memory leaks in DSA_do_sign and DSA_is_prime. - Also really enable memory leak checks in openssl.c and in some - test programs. - [Chad C. Mulligan, Bodo Moeller] - - *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess - up the length of negative integers. This has now been simplified to just - store the length when it is first determined and use it later, rather - than trying to keep track of where data is copied and updating it to - point to the end. - [Steve Henson, reported by Brien Wheeler - <bwheeler@authentica-security.com>] - - *) Add a new function PKCS7_signatureVerify. This allows the verification - of a PKCS#7 signature but with the signing certificate passed to the - function itself. This contrasts with PKCS7_dataVerify which assumes the - certificate is present in the PKCS#7 structure. This isn't always the - case: certificates can be omitted from a PKCS#7 structure and be - distributed by "out of band" means (such as a certificate database). - [Steve Henson] - - *) Complete the PEM_* macros with DECLARE_PEM versions to replace the - function prototypes in pem.h, also change util/mkdef.pl to add the - necessary function names. - [Steve Henson] - - *) mk1mf.pl (used by Windows builds) did not properly read the - options set by Configure in the top level Makefile, and Configure - was not even able to write more than one option correctly. - Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. - [Bodo Moeller] - - *) New functions CONF_load_bio() and CONF_load_fp() to allow a config - file to be loaded from a BIO or FILE pointer. The BIO version will - for example allow memory BIOs to contain config info. - [Steve Henson] - - *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. - Whoever hopes to achieve shared-library compatibility across versions - must use this, not the compile-time macro. - (Exercise 0.9.4: Which is the minimum library version required by - such programs?) - Note: All this applies only to multi-threaded programs, others don't - need locks. - [Bodo Moeller] - - *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests - through a BIO pair triggered the default case, i.e. - SSLerr(...,SSL_R_UNKNOWN_STATE). - [Bodo Moeller] - - *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications - can use the SSL library even if none of the specific BIOs is - appropriate. - [Bodo Moeller] - - *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value - for the encoded length. - [Jeon KyoungHo <khjeon@sds.samsung.co.kr>] - - *) Add initial documentation of the X509V3 functions. - [Steve Henson] - - *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and - PEM_write_bio_PKCS8PrivateKey() that are equivalent to - PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more - secure PKCS#8 private key format with a high iteration count. - [Steve Henson] - - *) Fix determination of Perl interpreter: A perl or perl5 - _directory_ in $PATH was also accepted as the interpreter. - [Ralf S. Engelschall] - - *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking - wrong with it but it was very old and did things like calling - PEM_ASN1_read() directly and used MD5 for the hash not to mention some - unusual formatting. - [Steve Henson] - - *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed - to use the new extension code. - [Steve Henson] - - *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c - with macros. This should make it easier to change their form, add extra - arguments etc. Fix a few PEM prototypes which didn't have cipher as a - constant. - [Steve Henson] - - *) Add to configuration table a new entry that can specify an alternative - name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, - according to Mark Crispin <MRC@Panda.COM>. - [Bodo Moeller] - -#if 0 - *) DES CBC did not update the IV. Weird. - [Ben Laurie] -#else - des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. - Changing the behaviour of the former might break existing programs -- - where IV updating is needed, des_ncbc_encrypt can be used. -#endif - - *) When bntest is run from "make test" it drives bc to check its - calculations, as well as internally checking them. If an internal check - fails, it needs to cause bc to give a non-zero result or make test carries - on without noticing the failure. Fixed. - [Ben Laurie] - - *) DES library cleanups. - [Ulf Möller] - - *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be - used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit - ciphers. NOTE: although the key derivation function has been verified - against some published test vectors it has not been extensively tested - yet. Added a -v2 "cipher" option to pkcs8 application to allow the use - of v2.0. - [Steve Henson] - - *) Instead of "mkdir -p", which is not fully portable, use new - Perl script "util/mkdir-p.pl". - [Bodo Moeller] - - *) Rewrite the way password based encryption (PBE) is handled. It used to - assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter - structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms - but doesn't apply to PKCS#5 v2.0 where it can be something else. Now - the 'parameter' field of the AlgorithmIdentifier is passed to the - underlying key generation function so it must do its own ASN1 parsing. - This has also changed the EVP_PBE_CipherInit() function which now has a - 'parameter' argument instead of literal salt and iteration count values - and the function EVP_PBE_ALGOR_CipherInit() has been deleted. - [Steve Henson] - - *) Support for PKCS#5 v1.5 compatible password based encryption algorithms - and PKCS#8 functionality. New 'pkcs8' application linked to openssl. - Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE - KEY" because this clashed with PKCS#8 unencrypted string. Since this - value was just used as a "magic string" and not used directly its - value doesn't matter. - [Steve Henson] - - *) Introduce some semblance of const correctness to BN. Shame C doesn't - support mutable. - [Ben Laurie] - - *) "linux-sparc64" configuration (ultrapenguin). - [Ray Miller <ray.miller@oucs.ox.ac.uk>] - "linux-sparc" configuration. - [Christian Forster <fo@hawo.stw.uni-erlangen.de>] - - *) config now generates no-xxx options for missing ciphers. - [Ulf Möller] - - *) Support the EBCDIC character set (work in progress). - File ebcdic.c not yet included because it has a different license. - [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] - - *) Support BS2000/OSD-POSIX. - [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] - - *) Make callbacks for key generation use void * instead of char *. - [Ben Laurie] - - *) Make S/MIME samples compile (not yet tested). - [Ben Laurie] - - *) Additional typesafe stacks. - [Ben Laurie] - - *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). - [Bodo Moeller] - - - Changes between 0.9.3 and 0.9.3a [29 May 1999] - - *) New configuration variant "sco5-gcc". - - *) Updated some demos. - [Sean O Riordain, Wade Scholine] - - *) Add missing BIO_free at exit of pkcs12 application. - [Wu Zhigang] - - *) Fix memory leak in conf.c. - [Steve Henson] - - *) Updates for Win32 to assembler version of MD5. - [Steve Henson] - - *) Set #! path to perl in apps/der_chop to where we found it - instead of using a fixed path. - [Bodo Moeller] - - *) SHA library changes for irix64-mips4-cc. - [Andy Polyakov] - - *) Improvements for VMS support. - [Richard Levitte] - - - Changes between 0.9.2b and 0.9.3 [24 May 1999] - - *) Bignum library bug fix. IRIX 6 passes "make test" now! - This also avoids the problems with SC4.2 and unpatched SC5. - [Andy Polyakov <appro@fy.chalmers.se>] - - *) New functions sk_num, sk_value and sk_set to replace the previous macros. - These are required because of the typesafe stack would otherwise break - existing code. If old code used a structure member which used to be STACK - and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with - sk_num or sk_value it would produce an error because the num, data members - are not present in STACK_OF. Now it just produces a warning. sk_set - replaces the old method of assigning a value to sk_value - (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code - that does this will no longer work (and should use sk_set instead) but - this could be regarded as a "questionable" behaviour anyway. - [Steve Henson] - - *) Fix most of the other PKCS#7 bugs. The "experimental" code can now - correctly handle encrypted S/MIME data. - [Steve Henson] - - *) Change type of various DES function arguments from des_cblock - (which means, in function argument declarations, pointer to char) - to des_cblock * (meaning pointer to array with 8 char elements), - which allows the compiler to do more typechecking; it was like - that back in SSLeay, but with lots of ugly casts. - - Introduce new type const_des_cblock. - [Bodo Moeller] - - *) Reorganise the PKCS#7 library and get rid of some of the more obvious - problems: find RecipientInfo structure that matches recipient certificate - and initialise the ASN1 structures properly based on passed cipher. - [Steve Henson] - - *) Belatedly make the BN tests actually check the results. - [Ben Laurie] - - *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion - to and from BNs: it was completely broken. New compilation option - NEG_PUBKEY_BUG to allow for some broken certificates that encode public - key elements as negative integers. - [Steve Henson] - - *) Reorganize and speed up MD5. - [Andy Polyakov <appro@fy.chalmers.se>] - - *) VMS support. - [Richard Levitte <richard@levitte.org>] - - *) New option -out to asn1parse to allow the parsed structure to be - output to a file. This is most useful when combined with the -strparse - option to examine the output of things like OCTET STRINGS. - [Steve Henson] - - *) Make SSL library a little more fool-proof by not requiring any longer - that SSL_set_{accept,connect}_state be called before - SSL_{accept,connect} may be used (SSL_set_..._state is omitted - in many applications because usually everything *appeared* to work as - intended anyway -- now it really works as intended). - [Bodo Moeller] - - *) Move openssl.cnf out of lib/. - [Ulf Möller] - - *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall - -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes - -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+ - [Ralf S. Engelschall] - - *) Various fixes to the EVP and PKCS#7 code. It may now be able to - handle PKCS#7 enveloped data properly. - [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve] - - *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of - copying pointers. The cert_st handling is changed by this in - various ways (and thus what used to be known as ctx->default_cert - is now called ctx->cert, since we don't resort to s->ctx->[default_]cert - any longer when s->cert does not give us what we need). - ssl_cert_instantiate becomes obsolete by this change. - As soon as we've got the new code right (possibly it already is?), - we have solved a couple of bugs of the earlier code where s->cert - was used as if it could not have been shared with other SSL structures. - - Note that using the SSL API in certain dirty ways now will result - in different behaviour than observed with earlier library versions: - Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx) - does not influence s as it used to. - - In order to clean up things more thoroughly, inside SSL_SESSION - we don't use CERT any longer, but a new structure SESS_CERT - that holds per-session data (if available); currently, this is - the peer's certificate chain and, for clients, the server's certificate - and temporary key. CERT holds only those values that can have - meaningful defaults in an SSL_CTX. - [Bodo Moeller] - - *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure - from the internal representation. Various PKCS#7 fixes: remove some - evil casts and set the enc_dig_alg field properly based on the signing - key type. - [Steve Henson] - - *) Allow PKCS#12 password to be set from the command line or the - environment. Let 'ca' get its config file name from the environment - variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' - and 'x509'). - [Steve Henson] - - *) Allow certificate policies extension to use an IA5STRING for the - organization field. This is contrary to the PKIX definition but - VeriSign uses it and IE5 only recognises this form. Document 'x509' - extension option. - [Steve Henson] - - *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, - without disallowing inline assembler and the like for non-pedantic builds. - [Ben Laurie] - - *) Support Borland C++ builder. - [Janez Jere <jj@void.si>, modified by Ulf Möller] - - *) Support Mingw32. - [Ulf Möller] - - *) SHA-1 cleanups and performance enhancements. - [Andy Polyakov <appro@fy.chalmers.se>] - - *) Sparc v8plus assembler for the bignum library. - [Andy Polyakov <appro@fy.chalmers.se>] - - *) Accept any -xxx and +xxx compiler options in Configure. - [Ulf Möller] - - *) Update HPUX configuration. - [Anonymous] - - *) Add missing sk_<type>_unshift() function to safestack.h - [Ralf S. Engelschall] - - *) New function SSL_CTX_use_certificate_chain_file that sets the - "extra_cert"s in addition to the certificate. (This makes sense - only for "PEM" format files, as chains as a whole are not - DER-encoded.) - [Bodo Moeller] - - *) Support verify_depth from the SSL API. - x509_vfy.c had what can be considered an off-by-one-error: - Its depth (which was not part of the external interface) - was actually counting the number of certificates in a chain; - now it really counts the depth. - [Bodo Moeller] - - *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used - instead of X509err, which often resulted in confusing error - messages since the error codes are not globally unique - (e.g. an alleged error in ssl3_accept when a certificate - didn't match the private key). - - *) New function SSL_CTX_set_session_id_context that allows to set a default - value (so that you don't need SSL_set_session_id_context for each - connection using the SSL_CTX). - [Bodo Moeller] - - *) OAEP decoding bug fix. - [Ulf Möller] - - *) Support INSTALL_PREFIX for package builders, as proposed by - David Harris. - [Bodo Moeller] - - *) New Configure options "threads" and "no-threads". For systems - where the proper compiler options are known (currently Solaris - and Linux), "threads" is the default. - [Bodo Moeller] - - *) New script util/mklink.pl as a faster substitute for util/mklink.sh. - [Bodo Moeller] - - *) Install various scripts to $(OPENSSLDIR)/misc, not to - $(INSTALLTOP)/bin -- they shouldn't clutter directories - such as /usr/local/bin. - [Bodo Moeller] - - *) "make linux-shared" to build shared libraries. - [Niels Poppe <niels@netbox.org>] - - *) New Configure option no-<cipher> (rsa, idea, rc5, ...). - [Ulf Möller] - - *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for - extension adding in x509 utility. - [Steve Henson] - - *) Remove NOPROTO sections and error code comments. - [Ulf Möller] - - *) Partial rewrite of the DEF file generator to now parse the ANSI - prototypes. - [Steve Henson] - - *) New Configure options --prefix=DIR and --openssldir=DIR. - [Ulf Möller] - - *) Complete rewrite of the error code script(s). It is all now handled - by one script at the top level which handles error code gathering, - header rewriting and C source file generation. It should be much better - than the old method: it now uses a modified version of Ulf's parser to - read the ANSI prototypes in all header files (thus the old K&R definitions - aren't needed for error creation any more) and do a better job of - translating function codes into names. The old 'ASN1 error code imbedded - in a comment' is no longer necessary and it doesn't use .err files which - have now been deleted. Also the error code call doesn't have to appear all - on one line (which resulted in some large lines...). - [Steve Henson] - - *) Change #include filenames from <foo.h> to <openssl/foo.h>. - [Bodo Moeller] - - *) Change behaviour of ssl2_read when facing length-0 packets: Don't return - 0 (which usually indicates a closed connection), but continue reading. - [Bodo Moeller] - - *) Fix some race conditions. - [Bodo Moeller] - - *) Add support for CRL distribution points extension. Add Certificate - Policies and CRL distribution points documentation. - [Steve Henson] - - *) Move the autogenerated header file parts to crypto/opensslconf.h. - [Ulf Möller] - - *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of - 8 of keying material. Merlin has also confirmed interop with this fix - between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. - [Merlin Hughes <merlin@baltimore.ie>] - - *) Fix lots of warnings. - [Richard Levitte <levitte@stacken.kth.se>] - - *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if - the directory spec didn't end with a LIST_SEPARATOR_CHAR. - [Richard Levitte <levitte@stacken.kth.se>] - - *) Fix problems with sizeof(long) == 8. - [Andy Polyakov <appro@fy.chalmers.se>] - - *) Change functions to ANSI C. - [Ulf Möller] - - *) Fix typos in error codes. - [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller] - - *) Remove defunct assembler files from Configure. - [Ulf Möller] - - *) SPARC v8 assembler BIGNUM implementation. - [Andy Polyakov <appro@fy.chalmers.se>] - - *) Support for Certificate Policies extension: both print and set. - Various additions to support the r2i method this uses. - [Steve Henson] - - *) A lot of constification, and fix a bug in X509_NAME_oneline() that could - return a const string when you are expecting an allocated buffer. - [Ben Laurie] - - *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE - types DirectoryString and DisplayText. - [Steve Henson] - - *) Add code to allow r2i extensions to access the configuration database, - add an LHASH database driver and add several ctx helper functions. - [Steve Henson] - - *) Fix an evil bug in bn_expand2() which caused various BN functions to - fail when they extended the size of a BIGNUM. - [Steve Henson] - - *) Various utility functions to handle SXNet extension. Modify mkdef.pl to - support typesafe stack. - [Steve Henson] - - *) Fix typo in SSL_[gs]et_options(). - [Nils Frostberg <nils@medcom.se>] - - *) Delete various functions and files that belonged to the (now obsolete) - old X509V3 handling code. - [Steve Henson] - - *) New Configure option "rsaref". - [Ulf Möller] - - *) Don't auto-generate pem.h. - [Bodo Moeller] - - *) Introduce type-safe ASN.1 SETs. - [Ben Laurie] - - *) Convert various additional casted stacks to type-safe STACK_OF() variants. - [Ben Laurie, Ralf S. Engelschall, Steve Henson] - - *) Introduce type-safe STACKs. This will almost certainly break lots of code - that links with OpenSSL (well at least cause lots of warnings), but fear - not: the conversion is trivial, and it eliminates loads of evil casts. A - few STACKed things have been converted already. Feel free to convert more. - In the fullness of time, I'll do away with the STACK type altogether. - [Ben Laurie] - - *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate - specified in <certfile> by updating the entry in the index.txt file. - This way one no longer has to edit the index.txt file manually for - revoking a certificate. The -revoke option does the gory details now. - [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall] - - *) Fix `openssl crl -noout -text' combination where `-noout' killed the - `-text' option at all and this way the `-noout -text' combination was - inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'. - [Ralf S. Engelschall] - - *) Make sure a corresponding plain text error message exists for the - X509_V_ERR_CERT_REVOKED/23 error number which can occur when a - verify callback function determined that a certificate was revoked. - [Ralf S. Engelschall] - - *) Bugfix: In test/testenc, don't test "openssl <cipher>" for - ciphers that were excluded, e.g. by -DNO_IDEA. Also, test - all available cipers including rc5, which was forgotten until now. - In order to let the testing shell script know which algorithms - are available, a new (up to now undocumented) command - "openssl list-cipher-commands" is used. - [Bodo Moeller] - - *) Bugfix: s_client occasionally would sleep in select() when - it should have checked SSL_pending() first. - [Bodo Moeller] - - *) New functions DSA_do_sign and DSA_do_verify to provide access to - the raw DSA values prior to ASN.1 encoding. - [Ulf Möller] - - *) Tweaks to Configure - [Niels Poppe <niels@netbox.org>] - - *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, - yet... - [Steve Henson] - - *) New variables $(RANLIB) and $(PERL) in the Makefiles. - [Ulf Möller] - - *) New config option to avoid instructions that are illegal on the 80386. - The default code is faster, but requires at least a 486. - [Ulf Möller] - - *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and - SSL2_SERVER_VERSION (not used at all) macros, which are now the - same as SSL2_VERSION anyway. - [Bodo Moeller] - - *) New "-showcerts" option for s_client. - [Bodo Moeller] - - *) Still more PKCS#12 integration. Add pkcs12 application to openssl - application. Various cleanups and fixes. - [Steve Henson] - - *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and - modify error routines to work internally. Add error codes and PBE init - to library startup routines. - [Steve Henson] - - *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and - packing functions to asn1 and evp. Changed function names and error - codes along the way. - [Steve Henson] - - *) PKCS12 integration: and so it begins... First of several patches to - slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 - objects to objects.h - [Steve Henson] - - *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1 - and display support for Thawte strong extranet extension. - [Steve Henson] - - *) Add LinuxPPC support. - [Jeff Dubrule <igor@pobox.org>] - - *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to - bn_div_words in alpha.s. - [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie] - - *) Make sure the RSA OAEP test is skipped under -DRSAref because - OAEP isn't supported when OpenSSL is built with RSAref. - [Ulf Moeller <ulf@fitug.de>] - - *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h - so they no longer are missing under -DNOPROTO. - [Soren S. Jorvang <soren@t.dk>] - - - Changes between 0.9.1c and 0.9.2b [22 Mar 1999] - - *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still - doesn't work when the session is reused. Coming soon! - [Ben Laurie] - - *) Fix a security hole, that allows sessions to be reused in the wrong - context thus bypassing client cert protection! All software that uses - client certs and session caches in multiple contexts NEEDS PATCHING to - allow session reuse! A fuller solution is in the works. - [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)] - - *) Some more source tree cleanups (removed obsolete files - crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed - permission on "config" script to be executable) and a fix for the INSTALL - document. - [Ulf Moeller <ulf@fitug.de>] - - *) Remove some legacy and erroneous uses of malloc, free instead of - Malloc, Free. - [Lennart Bang <lob@netstream.se>, with minor changes by Steve] - - *) Make rsa_oaep_test return non-zero on error. - [Ulf Moeller <ulf@fitug.de>] - - *) Add support for native Solaris shared libraries. Configure - solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice - if someone would make that last step automatic. - [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>] - - *) ctx_size was not built with the right compiler during "make links". Fixed. - [Ben Laurie] - - *) Change the meaning of 'ALL' in the cipher list. It now means "everything - except NULL ciphers". This means the default cipher list will no longer - enable NULL ciphers. They need to be specifically enabled e.g. with - the string "DEFAULT:eNULL". - [Steve Henson] - - *) Fix to RSA private encryption routines: if p < q then it would - occasionally produce an invalid result. This will only happen with - externally generated keys because OpenSSL (and SSLeay) ensure p > q. - [Steve Henson] - - *) Be less restrictive and allow also `perl util/perlpath.pl - /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin', - because this way one can also use an interpreter named `perl5' (which is - usually the name of Perl 5.xxx on platforms where an Perl 4.x is still - installed as `perl'). - [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] - - *) Let util/clean-depend.pl work also with older Perl 5.00x versions. - [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] - - *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add - advapi32.lib to Win32 build and change the pem test comparision - to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the - suggestion). Fix misplaced ASNI prototypes and declarations in evp.h - and crypto/des/ede_cbcm_enc.c. - [Steve Henson] - - *) DES quad checksum was broken on big-endian architectures. Fixed. - [Ben Laurie] - - *) Comment out two functions in bio.h that aren't implemented. Fix up the - Win32 test batch file so it (might) work again. The Win32 test batch file - is horrible: I feel ill.... - [Steve Henson] - - *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected - in e_os.h. Audit of header files to check ANSI and non ANSI - sections: 10 functions were absent from non ANSI section and not exported - from Windows DLLs. Fixed up libeay.num for new functions. - [Steve Henson] - - *) Make `openssl version' output lines consistent. - [Ralf S. Engelschall] - - *) Fix Win32 symbol export lists for BIO functions: Added - BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data - to ms/libeay{16,32}.def. - [Ralf S. Engelschall] - - *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled - fine under Unix and passes some trivial tests I've now added. But the - whole stuff is horribly incomplete, so a README.1ST with a disclaimer was - added to make sure no one expects that this stuff really works in the - OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources - up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and - openssl_bio.xs. - [Ralf S. Engelschall] - - *) Fix the generation of two part addresses in perl. - [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie] - - *) Add config entry for Linux on MIPS. - [John Tobey <jtobey@channel1.com>] - - *) Make links whenever Configure is run, unless we are on Windoze. - [Ben Laurie] - - *) Permit extensions to be added to CRLs using crl_section in openssl.cnf. - Currently only issuerAltName and AuthorityKeyIdentifier make any sense - in CRLs. - [Steve Henson] - - *) Add a useful kludge to allow package maintainers to specify compiler and - other platforms details on the command line without having to patch the - Configure script everytime: One now can use ``perl Configure - <id>:<details>'', i.e. platform ids are allowed to have details appended - to them (seperated by colons). This is treated as there would be a static - pre-configured entry in Configure's %table under key <id> with value - <details> and ``perl Configure <id>'' is called. So, when you want to - perform a quick test-compile under FreeBSD 3.1 with pgcc and without - assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"'' - now, which overrides the FreeBSD-elf entry on-the-fly. - [Ralf S. Engelschall] - - *) Disable new TLS1 ciphersuites by default: they aren't official yet. - [Ben Laurie] - - *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified - on the `perl Configure ...' command line. This way one can compile - OpenSSL libraries with Position Independent Code (PIC) which is needed - for linking it into DSOs. - [Ralf S. Engelschall] - - *) Remarkably, export ciphers were totally broken and no-one had noticed! - Fixed. - [Ben Laurie] - - *) Cleaned up the LICENSE document: The official contact for any license - questions now is the OpenSSL core team under openssl-core@openssl.org. - And add a paragraph about the dual-license situation to make sure people - recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply - to the OpenSSL toolkit. - [Ralf S. Engelschall] - - *) General source tree makefile cleanups: Made `making xxx in yyy...' - display consistent in the source tree and replaced `/bin/rm' by `rm'. - Additonally cleaned up the `make links' target: Remove unnecessary - semicolons, subsequent redundant removes, inline point.sh into mklink.sh - to speed processing and no longer clutter the display with confusing - stuff. Instead only the actually done links are displayed. - [Ralf S. Engelschall] - - *) Permit null encryption ciphersuites, used for authentication only. It used - to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. - It is now necessary to set SSL_FORBID_ENULL to prevent the use of null - encryption. - [Ben Laurie] - - *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder - signed attributes when verifying signatures (this would break them), - the detached data encoding was wrong and public keys obtained using - X509_get_pubkey() weren't freed. - [Steve Henson] - - *) Add text documentation for the BUFFER functions. Also added a work around - to a Win95 console bug. This was triggered by the password read stuff: the - last character typed gets carried over to the next fread(). If you were - generating a new cert request using 'req' for example then the last - character of the passphrase would be CR which would then enter the first - field as blank. - [Steve Henson] - - *) Added the new `Includes OpenSSL Cryptography Software' button as - doc/openssl_button.{gif,html} which is similar in style to the old SSLeay - button and can be used by applications based on OpenSSL to show the - relationship to the OpenSSL project. - [Ralf S. Engelschall] - - *) Remove confusing variables in function signatures in files - ssl/ssl_lib.c and ssl/ssl.h. - [Lennart Bong <lob@kulthea.stacken.kth.se>] - - *) Don't install bss_file.c under PREFIX/include/ - [Lennart Bong <lob@kulthea.stacken.kth.se>] - - *) Get the Win32 compile working again. Modify mkdef.pl so it can handle - functions that return function pointers and has support for NT specific - stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various - #ifdef WIN32 and WINNTs sprinkled about the place and some changes from - unsigned to signed types: this was killing the Win32 compile. - [Steve Henson] - - *) Add new certificate file to stack functions, - SSL_add_dir_cert_subjects_to_stack() and - SSL_add_file_cert_subjects_to_stack(). These largely supplant - SSL_load_client_CA_file(), and can be used to add multiple certs easily - to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). - This means that Apache-SSL and similar packages don't have to mess around - to add as many CAs as they want to the preferred list. - [Ben Laurie] - - *) Experiment with doxygen documentation. Currently only partially applied to - ssl/ssl_lib.c. - See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with - openssl.doxy as the configuration file. - [Ben Laurie] - - *) Get rid of remaining C++-style comments which strict C compilers hate. - [Ralf S. Engelschall, pointed out by Carlos Amengual] - - *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not - compiled in by default: it has problems with large keys. - [Steve Henson] - - *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and - DH private keys and/or callback functions which directly correspond to - their SSL_CTX_xxx() counterparts but work on a per-connection basis. This - is needed for applications which have to configure certificates on a - per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis - (e.g. s_server). - For the RSA certificate situation is makes no difference, but - for the DSA certificate situation this fixes the "no shared cipher" - problem where the OpenSSL cipher selection procedure failed because the - temporary keys were not overtaken from the context and the API provided - no way to reconfigure them. - The new functions now let applications reconfigure the stuff and they - are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, - SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new - non-public-API function ssl_cert_instantiate() is used as a helper - function and also to reduce code redundancy inside ssl_rsa.c. - [Ralf S. Engelschall] - - *) Move s_server -dcert and -dkey options out of the undocumented feature - area because they are useful for the DSA situation and should be - recognized by the users. - [Ralf S. Engelschall] - - *) Fix the cipher decision scheme for export ciphers: the export bits are - *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within - SSL_EXP_MASK. So, the original variable has to be used instead of the - already masked variable. - [Richard Levitte <levitte@stacken.kth.se>] - - *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c - [Richard Levitte <levitte@stacken.kth.se>] - - *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() - from `int' to `unsigned int' because it's a length and initialized by - EVP_DigestFinal() which expects an `unsigned int *'. - [Richard Levitte <levitte@stacken.kth.se>] - - *) Don't hard-code path to Perl interpreter on shebang line of Configure - script. Instead use the usual Shell->Perl transition trick. - [Ralf S. Engelschall] - - *) Make `openssl x509 -noout -modulus' functional also for DSA certificates - (in addition to RSA certificates) to match the behaviour of `openssl dsa - -noout -modulus' as it's already the case for `openssl rsa -noout - -modulus'. For RSA the -modulus is the real "modulus" while for DSA - currently the public key is printed (a decision which was already done by - `openssl dsa -modulus' in the past) which serves a similar purpose. - Additionally the NO_RSA no longer completely removes the whole -modulus - option; it now only avoids using the RSA stuff. Same applies to NO_DSA - now, too. - [Ralf S. Engelschall] - - *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested - BIO. See the source (crypto/evp/bio_ok.c) for more info. - [Arne Ansper <arne@ats.cyber.ee>] - - *) Dump the old yucky req code that tried (and failed) to allow raw OIDs - to be added. Now both 'req' and 'ca' can use new objects defined in the - config file. - [Steve Henson] - - *) Add cool BIO that does syslog (or event log on NT). - [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie] - - *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, - TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and - TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher - Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. - [Ben Laurie] - - *) Add preliminary config info for new extension code. - [Steve Henson] - - *) Make RSA_NO_PADDING really use no padding. - [Ulf Moeller <ulf@fitug.de>] - - *) Generate errors when private/public key check is done. - [Ben Laurie] - - *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support - for some CRL extensions and new objects added. - [Steve Henson] - - *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private - key usage extension and fuller support for authority key id. - [Steve Henson] - - *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved - padding method for RSA, which is recommended for new applications in PKCS - #1 v2.0 (RFC 2437, October 1998). - OAEP (Optimal Asymmetric Encryption Padding) has better theoretical - foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure - against Bleichbacher's attack on RSA. - [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by - Ben Laurie] - - *) Updates to the new SSL compression code - [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] - - *) Fix so that the version number in the master secret, when passed - via RSA, checks that if TLS was proposed, but we roll back to SSLv3 - (because the server will not accept higher), that the version number - is 0x03,0x01, not 0x03,0x00 - [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] - - *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory - leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes - in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c - [Steve Henson] - - *) Support for RAW extensions where an arbitrary extension can be - created by including its DER encoding. See apps/openssl.cnf for - an example. - [Steve Henson] - - *) Make sure latest Perl versions don't interpret some generated C array - code as Perl array code in the crypto/err/err_genc.pl script. - [Lars Weber <3weber@informatik.uni-hamburg.de>] - - *) Modify ms/do_ms.bat to not generate assembly language makefiles since - not many people have the assembler. Various Win32 compilation fixes and - update to the INSTALL.W32 file with (hopefully) more accurate Win32 - build instructions. - [Steve Henson] - - *) Modify configure script 'Configure' to automatically create crypto/date.h - file under Win32 and also build pem.h from pem.org. New script - util/mkfiles.pl to create the MINFO file on environments that can't do a - 'make files': perl util/mkfiles.pl >MINFO should work. - [Steve Henson] - - *) Major rework of DES function declarations, in the pursuit of correctness - and purity. As a result, many evil casts evaporated, and some weirdness, - too. You may find this causes warnings in your code. Zapping your evil - casts will probably fix them. Mostly. - [Ben Laurie] - - *) Fix for a typo in asn1.h. Bug fix to object creation script - obj_dat.pl. It considered a zero in an object definition to mean - "end of object": none of the objects in objects.h have any zeros - so it wasn't spotted. - [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>] - - *) Add support for Triple DES Cipher Block Chaining with Output Feedback - Masking (CBCM). In the absence of test vectors, the best I have been able - to do is check that the decrypt undoes the encrypt, so far. Send me test - vectors if you have them. - [Ben Laurie] - - *) Correct calculation of key length for export ciphers (too much space was - allocated for null ciphers). This has not been tested! - [Ben Laurie] - - *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage - message is now correct (it understands "crypto" and "ssl" on its - command line). There is also now an "update" option. This will update - the util/ssleay.num and util/libeay.num files with any new functions. - If you do a: - perl util/mkdef.pl crypto ssl update - it will update them. - [Steve Henson] - - *) Overhauled the Perl interface (perl/*): - - ported BN stuff to OpenSSL's different BN library - - made the perl/ source tree CVS-aware - - renamed the package from SSLeay to OpenSSL (the files still contain - their history because I've copied them in the repository) - - removed obsolete files (the test scripts will be replaced - by better Test::Harness variants in the future) - [Ralf S. Engelschall] - - *) First cut for a very conservative source tree cleanup: - 1. merge various obsolete readme texts into doc/ssleay.txt - where we collect the old documents and readme texts. - 2. remove the first part of files where I'm already sure that we no - longer need them because of three reasons: either they are just temporary - files which were left by Eric or they are preserved original files where - I've verified that the diff is also available in the CVS via "cvs diff - -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for - the crypto/md/ stuff). - [Ralf S. Engelschall] - - *) More extension code. Incomplete support for subject and issuer alt - name, issuer and authority key id. Change the i2v function parameters - and add an extra 'crl' parameter in the X509V3_CTX structure: guess - what that's for :-) Fix to ASN1 macro which messed up - IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. - [Steve Henson] - - *) Preliminary support for ENUMERATED type. This is largely copied from the - INTEGER code. - [Steve Henson] - - *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. - [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] - - *) Make sure `make rehash' target really finds the `openssl' program. - [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] - - *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd - like to hear about it if this slows down other processors. - [Ben Laurie] - - *) Add CygWin32 platform information to Configure script. - [Alan Batie <batie@aahz.jf.intel.com>] - - *) Fixed ms/32all.bat script: `no_asm' -> `no-asm' - [Rainer W. Gerling <gerling@mpg-gv.mpg.de>] - - *) New program nseq to manipulate netscape certificate sequences - [Steve Henson] - - *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a - few typos. - [Steve Henson] - - *) Fixes to BN code. Previously the default was to define BN_RECURSION - but the BN code had some problems that would cause failures when - doing certificate verification and some other functions. - [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] - - *) Add ASN1 and PEM code to support netscape certificate sequences. - [Steve Henson] - - *) Add ASN1 and PEM code to support netscape certificate sequences. - [Steve Henson] - - *) Add several PKIX and private extended key usage OIDs. - [Steve Henson] - - *) Modify the 'ca' program to handle the new extension code. Modify - openssl.cnf for new extension format, add comments. - [Steve Henson] - - *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' - and add a sample to openssl.cnf so req -x509 now adds appropriate - CA extensions. - [Steve Henson] - - *) Continued X509 V3 changes. Add to other makefiles, integrate with the - error code, add initial support to X509_print() and x509 application. - [Steve Henson] - - *) Takes a deep breath and start addding X509 V3 extension support code. Add - files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this - stuff is currently isolated and isn't even compiled yet. - [Steve Henson] - - *) Continuing patches for GeneralizedTime. Fix up certificate and CRL - ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. - Removed the versions check from X509 routines when loading extensions: - this allows certain broken certificates that don't set the version - properly to be processed. - [Steve Henson] - - *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another - Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which - can still be regenerated with "make depend". - [Ben Laurie] - - *) Spelling mistake in C version of CAST-128. - [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>] - - *) Changes to the error generation code. The perl script err-code.pl - now reads in the old error codes and retains the old numbers, only - adding new ones if necessary. It also only changes the .err files if new - codes are added. The makefiles have been modified to only insert errors - when needed (to avoid needlessly modifying header files). This is done - by only inserting errors if the .err file is newer than the auto generated - C file. To rebuild all the error codes from scratch (the old behaviour) - either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl - or delete all the .err files. - [Steve Henson] - - *) CAST-128 was incorrectly implemented for short keys. The C version has - been fixed, but is untested. The assembler versions are also fixed, but - new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing - to regenerate it if needed. - [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun - Hagino <itojun@kame.net>] - - *) File was opened incorrectly in randfile.c. - [Ulf Möller <ulf@fitug.de>] - - *) Beginning of support for GeneralizedTime. d2i, i2d, check and print - functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or - GeneralizedTime. ASN1_TIME is the proper type used in certificates et - al: it's just almost always a UTCTime. Note this patch adds new error - codes so do a "make errors" if there are problems. - [Steve Henson] - - *) Correct Linux 1 recognition in config. - [Ulf Möller <ulf@fitug.de>] - - *) Remove pointless MD5 hash when using DSA keys in ca. - [Anonymous <nobody@replay.com>] - - *) Generate an error if given an empty string as a cert directory. Also - generate an error if handed NULL (previously returned 0 to indicate an - error, but didn't set one). - [Ben Laurie, reported by Anonymous <nobody@replay.com>] - - *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last. - [Ben Laurie] - - *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct - parameters. This was causing a warning which killed off the Win32 compile. - [Steve Henson] - - *) Remove C++ style comments from crypto/bn/bn_local.h. - [Neil Costigan <neil.costigan@celocom.com>] - - *) The function OBJ_txt2nid was broken. It was supposed to return a nid - based on a text string, looking up short and long names and finally - "dot" format. The "dot" format stuff didn't work. Added new function - OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote - OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the - OID is not part of the table. - [Steve Henson] - - *) Add prototypes to X509 lookup/verify methods, fixing a bug in - X509_LOOKUP_by_alias(). - [Ben Laurie] - - *) Sort openssl functions by name. - [Ben Laurie] - - *) Get the gendsa program working (hopefully) and add it to app list. Remove - encryption from sample DSA keys (in case anyone is interested the password - was "1234"). - [Steve Henson] - - *) Make _all_ *_free functions accept a NULL pointer. - [Frans Heymans <fheymans@isaserver.be>] - - *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use - NULL pointers. - [Anonymous <nobody@replay.com>] - - *) s_server should send the CAfile as acceptable CAs, not its own cert. - [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] - - *) Don't blow it for numeric -newkey arguments to apps/req. - [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] - - *) Temp key "for export" tests were wrong in s3_srvr.c. - [Anonymous <nobody@replay.com>] - - *) Add prototype for temp key callback functions - SSL_CTX_set_tmp_{rsa,dh}_callback(). - [Ben Laurie] - - *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and - DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). - [Steve Henson] - - *) X509_name_add_entry() freed the wrong thing after an error. - [Arne Ansper <arne@ats.cyber.ee>] - - *) rsa_eay.c would attempt to free a NULL context. - [Arne Ansper <arne@ats.cyber.ee>] - - *) BIO_s_socket() had a broken should_retry() on Windoze. - [Arne Ansper <arne@ats.cyber.ee>] - - *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. - [Arne Ansper <arne@ats.cyber.ee>] - - *) Make sure the already existing X509_STORE->depth variable is initialized - in X509_STORE_new(), but document the fact that this variable is still - unused in the certificate verification process. - [Ralf S. Engelschall] - - *) Fix the various library and apps files to free up pkeys obtained from - X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. - [Steve Henson] - - *) Fix reference counting in X509_PUBKEY_get(). This makes - demos/maurice/example2.c work, amongst others, probably. - [Steve Henson and Ben Laurie] - - *) First cut of a cleanup for apps/. First the `ssleay' program is now named - `openssl' and second, the shortcut symlinks for the `openssl <command>' - are no longer created. This way we have a single and consistent command - line interface `openssl <command>', similar to `cvs <command>'. - [Ralf S. Engelschall, Paul Sutton and Ben Laurie] - - *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey - BIT STRING wrapper always have zero unused bits. - [Steve Henson] - - *) Add CA.pl, perl version of CA.sh, add extended key usage OID. - [Steve Henson] - - *) Make the top-level INSTALL documentation easier to understand. - [Paul Sutton] - - *) Makefiles updated to exit if an error occurs in a sub-directory - make (including if user presses ^C) [Paul Sutton] - - *) Make Montgomery context stuff explicit in RSA data structure. - [Ben Laurie] - - *) Fix build order of pem and err to allow for generated pem.h. - [Ben Laurie] - - *) Fix renumbering bug in X509_NAME_delete_entry(). - [Ben Laurie] - - *) Enhanced the err-ins.pl script so it makes the error library number - global and can add a library name. This is needed for external ASN1 and - other error libraries. - [Steve Henson] - - *) Fixed sk_insert which never worked properly. - [Steve Henson] - - *) Fix ASN1 macros so they can handle indefinite length construted - EXPLICIT tags. Some non standard certificates use these: they can now - be read in. - [Steve Henson] - - *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) - into a single doc/ssleay.txt bundle. This way the information is still - preserved but no longer messes up this directory. Now it's new room for - the new set of documenation files. - [Ralf S. Engelschall] - - *) SETs were incorrectly DER encoded. This was a major pain, because they - shared code with SEQUENCEs, which aren't coded the same. This means that - almost everything to do with SETs or SEQUENCEs has either changed name or - number of arguments. - [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>] - - *) Fix test data to work with the above. - [Ben Laurie] - - *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but - was already fixed by Eric for 0.9.1 it seems. - [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>] - - *) Autodetect FreeBSD3. - [Ben Laurie] - - *) Fix various bugs in Configure. This affects the following platforms: - nextstep - ncr-scde - unixware-2.0 - unixware-2.0-pentium - sco5-cc. - [Ben Laurie] - - *) Eliminate generated files from CVS. Reorder tests to regenerate files - before they are needed. - [Ben Laurie] - - *) Generate Makefile.ssl from Makefile.org (to keep CVS happy). - [Ben Laurie] - - - Changes between 0.9.1b and 0.9.1c [23-Dec-1998] - - *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and - changed SSLeay to OpenSSL in version strings. - [Ralf S. Engelschall] - - *) Some fixups to the top-level documents. - [Paul Sutton] - - *) Fixed the nasty bug where rsaref.h was not found under compile-time - because the symlink to include/ was missing. - [Ralf S. Engelschall] - - *) Incorporated the popular no-RSA/DSA-only patches - which allow to compile a RSA-free SSLeay. - [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall] - - *) Fixed nasty rehash problem under `make -f Makefile.ssl links' - when "ssleay" is still not found. - [Ralf S. Engelschall] - - *) Added more platforms to Configure: Cray T3E, HPUX 11, - [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>] - - *) Updated the README file. - [Ralf S. Engelschall] - - *) Added various .cvsignore files in the CVS repository subdirs - to make a "cvs update" really silent. - [Ralf S. Engelschall] - - *) Recompiled the error-definition header files and added - missing symbols to the Win32 linker tables. - [Ralf S. Engelschall] - - *) Cleaned up the top-level documents; - o new files: CHANGES and LICENSE - o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay - o merged COPYRIGHT into LICENSE - o removed obsolete TODO file - o renamed MICROSOFT to INSTALL.W32 - [Ralf S. Engelschall] - - *) Removed dummy files from the 0.9.1b source tree: - crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi - crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f - crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f - crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f - util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f - [Ralf S. Engelschall] - - *) Added various platform portability fixes. - [Mark J. Cox] - - *) The Genesis of the OpenSSL rpject: - We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. - Young and Tim J. Hudson created while they were working for C2Net until - summer 1998. - [The OpenSSL Project] - - - Changes between 0.9.0b and 0.9.1b [not released] - - *) Updated a few CA certificates under certs/ - [Eric A. Young] - - *) Changed some BIGNUM api stuff. - [Eric A. Young] - - *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, - DGUX x86, Linux Alpha, etc. - [Eric A. Young] - - *) New COMP library [crypto/comp/] for SSL Record Layer Compression: - RLE (dummy implemented) and ZLIB (really implemented when ZLIB is - available). - [Eric A. Young] - - *) Add -strparse option to asn1pars program which parses nested - binary structures - [Dr Stephen Henson <shenson@bigfoot.com>] - - *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs. - [Eric A. Young] - - *) DSA fix for "ca" program. - [Eric A. Young] - - *) Added "-genkey" option to "dsaparam" program. - [Eric A. Young] - - *) Added RIPE MD160 (rmd160) message digest. - [Eric A. Young] - - *) Added -a (all) option to "ssleay version" command. - [Eric A. Young] - - *) Added PLATFORM define which is the id given to Configure. - [Eric A. Young] - - *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking. - [Eric A. Young] - - *) Extended the ASN.1 parser routines. - [Eric A. Young] - - *) Extended BIO routines to support REUSEADDR, seek, tell, etc. - [Eric A. Young] - - *) Added a BN_CTX to the BN library. - [Eric A. Young] - - *) Fixed the weak key values in DES library - [Eric A. Young] - - *) Changed API in EVP library for cipher aliases. - [Eric A. Young] - - *) Added support for RC2/64bit cipher. - [Eric A. Young] - - *) Converted the lhash library to the crypto/mem.c functions. - [Eric A. Young] - - *) Added more recognized ASN.1 object ids. - [Eric A. Young] - - *) Added more RSA padding checks for SSL/TLS. - [Eric A. Young] - - *) Added BIO proxy/filter functionality. - [Eric A. Young] - - *) Added extra_certs to SSL_CTX which can be used - send extra CA certificates to the client in the CA cert chain sending - process. It can be configured with SSL_CTX_add_extra_chain_cert(). - [Eric A. Young] - - *) Now Fortezza is denied in the authentication phase because - this is key exchange mechanism is not supported by SSLeay at all. - [Eric A. Young] - - *) Additional PKCS1 checks. - [Eric A. Young] - - *) Support the string "TLSv1" for all TLS v1 ciphers. - [Eric A. Young] - - *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the - ex_data index of the SSL context in the X509_STORE_CTX ex_data. - [Eric A. Young] - - *) Fixed a few memory leaks. - [Eric A. Young] - - *) Fixed various code and comment typos. - [Eric A. Young] - - *) A minor bug in ssl/s3_clnt.c where there would always be 4 0 - bytes sent in the client random. - [Edward Bishop <ebishop@spyglass.com>] - +
+ OpenSSL CHANGES
+ _______________
+
+ Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
+
+ *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
+ [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
+
+ *) Fix bug in string printing code: if *any* escaping is enabled we must
+ escape the escape character (backslash) or the resulting string is
+ ambiguous.
+ [Steve Henson]
+
+ Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
+
+ *) Disable code workaround for ancient and obsolete Netscape browsers
+ and servers: an attacker can use it in a ciphersuite downgrade attack.
+ Thanks to Martin Rex for discovering this bug. CVE-2010-4180
+ [Steve Henson]
+
+ *) Fixed J-PAKE implementation error, originally discovered by
+ Sebastien Martini, further info and confirmation from Stefan
+ Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
+ [Ben Laurie]
+
+ Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
+
+ *) Fix extension code to avoid race conditions which can result in a buffer
+ overrun vulnerability: resumed sessions must not be modified as they can
+ be shared by multiple threads. CVE-2010-3864
+ [Steve Henson]
+
+ *) Fix WIN32 build system to correctly link an ENGINE directory into
+ a DLL.
+ [Steve Henson]
+
+ Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
+
+ *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
+ (CVE-2010-1633)
+ [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
+
+ Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
+
+ *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
+ context. The operation can be customised via the ctrl mechanism in
+ case ENGINEs want to include additional functionality.
+ [Steve Henson]
+
+ *) Tolerate yet another broken PKCS#8 key format: private key value negative.
+ [Steve Henson]
+
+ *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
+ output hashes compatible with older versions of OpenSSL.
+ [Willy Weisz <weisz@vcpc.univie.ac.at>]
+
+ *) Fix compression algorithm handling: if resuming a session use the
+ compression algorithm of the resumed session instead of determining
+ it from client hello again. Don't allow server to change algorithm.
+ [Steve Henson]
+
+ *) Add load_crls() function to apps tidying load_certs() too. Add option
+ to verify utility to allow additional CRLs to be included.
+ [Steve Henson]
+
+ *) Update OCSP request code to permit adding custom headers to the request:
+ some responders need this.
+ [Steve Henson]
+
+ *) The function EVP_PKEY_sign() returns <=0 on error: check return code
+ correctly.
+ [Julia Lawall <julia@diku.dk>]
+
+ *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
+ needlessly dereferenced structures, used obsolete functions and
+ didn't handle all updated verify codes correctly.
+ [Steve Henson]
+
+ *) Disable MD2 in the default configuration.
+ [Steve Henson]
+
+ *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
+ indicate the initial BIO being pushed or popped. This makes it possible
+ to determine whether the BIO is the one explicitly called or as a result
+ of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
+ it handles reference counts correctly and doesn't zero out the I/O bio
+ when it is not being explicitly popped. WARNING: applications which
+ included workarounds for the old buggy behaviour will need to be modified
+ or they could free up already freed BIOs.
+ [Steve Henson]
+
+ *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
+ renaming to all platforms (within the 0.9.8 branch, this was
+ done conditionally on Netware platforms to avoid a name clash).
+ [Guenter <lists@gknw.net>]
+
+ *) Add ECDHE and PSK support to DTLS.
+ [Michael Tuexen <tuexen@fh-muenster.de>]
+
+ *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
+ be used on C++.
+ [Steve Henson]
+
+ *) Add "missing" function EVP_MD_flags() (without this the only way to
+ retrieve a digest flags is by accessing the structure directly. Update
+ EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
+ or cipher is registered as in the "from" argument. Print out all
+ registered digests in the dgst usage message instead of manually
+ attempting to work them out.
+ [Steve Henson]
+
+ *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
+ this allows the use of compression and extensions. Change default cipher
+ string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
+ by default unless an application cipher string requests it.
+ [Steve Henson]
+
+ *) Alter match criteria in PKCS12_parse(). It used to try to use local
+ key ids to find matching certificates and keys but some PKCS#12 files
+ don't follow the (somewhat unwritten) rules and this strategy fails.
+ Now just gather all certificates together and the first private key
+ then look for the first certificate that matches the key.
+ [Steve Henson]
+
+ *) Support use of registered digest and cipher names for dgst and cipher
+ commands instead of having to add each one as a special case. So now
+ you can do:
+
+ openssl sha256 foo
+
+ as well as:
+
+ openssl dgst -sha256 foo
+
+ and this works for ENGINE based algorithms too.
+
+ [Steve Henson]
+
+ *) Update Gost ENGINE to support parameter files.
+ [Victor B. Wagner <vitus@cryptocom.ru>]
+
+ *) Support GeneralizedTime in ca utility.
+ [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
+
+ *) Enhance the hash format used for certificate directory links. The new
+ form uses the canonical encoding (meaning equivalent names will work
+ even if they aren't identical) and uses SHA1 instead of MD5. This form
+ is incompatible with the older format and as a result c_rehash should
+ be used to rebuild symbolic links.
+ [Steve Henson]
+
+ *) Make PKCS#8 the default write format for private keys, replacing the
+ traditional format. This form is standardised, more secure and doesn't
+ include an implicit MD5 dependency.
+ [Steve Henson]
+
+ *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
+ committed to OpenSSL should pass this lot as a minimum.
+ [Steve Henson]
+
+ *) Add session ticket override functionality for use by EAP-FAST.
+ [Jouni Malinen <j@w1.fi>]
+
+ *) Modify HMAC functions to return a value. Since these can be implemented
+ in an ENGINE errors can occur.
+ [Steve Henson]
+
+ *) Type-checked OBJ_bsearch_ex.
+ [Ben Laurie]
+
+ *) Type-checked OBJ_bsearch. Also some constification necessitated
+ by type-checking. Still to come: TXT_DB, bsearch(?),
+ OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
+ CONF_VALUE.
+ [Ben Laurie]
+
+ *) New function OPENSSL_gmtime_adj() to add a specific number of days and
+ seconds to a tm structure directly, instead of going through OS
+ specific date routines. This avoids any issues with OS routines such
+ as the year 2038 bug. New *_adj() functions for ASN1 time structures
+ and X509_time_adj_ex() to cover the extended range. The existing
+ X509_time_adj() is still usable and will no longer have any date issues.
+ [Steve Henson]
+
+ *) Delta CRL support. New use deltas option which will attempt to locate
+ and search any appropriate delta CRLs available.
+
+ This work was sponsored by Google.
+ [Steve Henson]
+
+ *) Support for CRLs partitioned by reason code. Reorganise CRL processing
+ code and add additional score elements. Validate alternate CRL paths
+ as part of the CRL checking and indicate a new error "CRL path validation
+ error" in this case. Applications wanting additional details can use
+ the verify callback and check the new "parent" field. If this is not
+ NULL CRL path validation is taking place. Existing applications wont
+ see this because it requires extended CRL support which is off by
+ default.
+
+ This work was sponsored by Google.
+ [Steve Henson]
+
+ *) Support for freshest CRL extension.
+
+ This work was sponsored by Google.
+ [Steve Henson]
+
+ *) Initial indirect CRL support. Currently only supported in the CRLs
+ passed directly and not via lookup. Process certificate issuer
+ CRL entry extension and lookup CRL entries by bother issuer name
+ and serial number. Check and process CRL issuer entry in IDP extension.
+
+ This work was sponsored by Google.
+ [Steve Henson]
+
+ *) Add support for distinct certificate and CRL paths. The CRL issuer
+ certificate is validated separately in this case. Only enabled if
+ an extended CRL support flag is set: this flag will enable additional
+ CRL functionality in future.
+
+ This work was sponsored by Google.
+ [Steve Henson]
+
+ *) Add support for policy mappings extension.
+
+ This work was sponsored by Google.
+ [Steve Henson]
+
+ *) Fixes to pathlength constraint, self issued certificate handling,
+ policy processing to align with RFC3280 and PKITS tests.
+
+ This work was sponsored by Google.
+ [Steve Henson]
+
+ *) Support for name constraints certificate extension. DN, email, DNS
+ and URI types are currently supported.
+
+ This work was sponsored by Google.
+ [Steve Henson]
+
+ *) To cater for systems that provide a pointer-based thread ID rather
+ than numeric, deprecate the current numeric thread ID mechanism and
+ replace it with a structure and associated callback type. This
+ mechanism allows a numeric "hash" to be extracted from a thread ID in
+ either case, and on platforms where pointers are larger than 'long',
+ mixing is done to help ensure the numeric 'hash' is usable even if it
+ can't be guaranteed unique. The default mechanism is to use "&errno"
+ as a pointer-based thread ID to distinguish between threads.
+
+ Applications that want to provide their own thread IDs should now use
+ CRYPTO_THREADID_set_callback() to register a callback that will call
+ either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
+
+ Note that ERR_remove_state() is now deprecated, because it is tied
+ to the assumption that thread IDs are numeric. ERR_remove_state(0)
+ to free the current thread's error state should be replaced by
+ ERR_remove_thread_state(NULL).
+
+ (This new approach replaces the functions CRYPTO_set_idptr_callback(),
+ CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
+ OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
+ application was previously providing a numeric thread callback that
+ was inappropriate for distinguishing threads, then uniqueness might
+ have been obtained with &errno that happened immediately in the
+ intermediate development versions of OpenSSL; this is no longer the
+ case, the numeric thread callback will now override the automatic use
+ of &errno.)
+ [Geoff Thorpe, with help from Bodo Moeller]
+
+ *) Initial support for different CRL issuing certificates. This covers a
+ simple case where the self issued certificates in the chain exist and
+ the real CRL issuer is higher in the existing chain.
+
+ This work was sponsored by Google.
+ [Steve Henson]
+
+ *) Removed effectively defunct crypto/store from the build.
+ [Ben Laurie]
+
+ *) Revamp of STACK to provide stronger type-checking. Still to come:
+ TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
+ ASN1_STRING, CONF_VALUE.
+ [Ben Laurie]
+
+ *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
+ RAM on SSL connections. This option can save about 34k per idle SSL.
+ [Nick Mathewson]
+
+ *) Revamp of LHASH to provide stronger type-checking. Still to come:
+ STACK, TXT_DB, bsearch, qsort.
+ [Ben Laurie]
+
+ *) Initial support for Cryptographic Message Syntax (aka CMS) based
+ on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
+ support for data, signedData, compressedData, digestedData and
+ encryptedData, envelopedData types included. Scripts to check against
+ RFC4134 examples draft and interop and consistency checks of many
+ content types and variants.
+ [Steve Henson]
+
+ *) Add options to enc utility to support use of zlib compression BIO.
+ [Steve Henson]
+
+ *) Extend mk1mf to support importing of options and assembly language
+ files from Configure script, currently only included in VC-WIN32.
+ The assembly language rules can now optionally generate the source
+ files from the associated perl scripts.
+ [Steve Henson]
+
+ *) Implement remaining functionality needed to support GOST ciphersuites.
+ Interop testing has been performed using CryptoPro implementations.
+ [Victor B. Wagner <vitus@cryptocom.ru>]
+
+ *) s390x assembler pack.
+ [Andy Polyakov]
+
+ *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
+ "family."
+ [Andy Polyakov]
+
+ *) Implement Opaque PRF Input TLS extension as specified in
+ draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
+ official specification yet and no extension type assignment by
+ IANA exists, this extension (for now) will have to be explicitly
+ enabled when building OpenSSL by providing the extension number
+ to use. For example, specify an option
+
+ -DTLSEXT_TYPE_opaque_prf_input=0x9527
+
+ to the "config" or "Configure" script to enable the extension,
+ assuming extension number 0x9527 (which is a completely arbitrary
+ and unofficial assignment based on the MD5 hash of the Internet
+ Draft). Note that by doing so, you potentially lose
+ interoperability with other TLS implementations since these might
+ be using the same extension number for other purposes.
+
+ SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
+ opaque PRF input value to use in the handshake. This will create
+ an interal copy of the length-'len' string at 'src', and will
+ return non-zero for success.
+
+ To get more control and flexibility, provide a callback function
+ by using
+
+ SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
+ SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
+
+ where
+
+ int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
+ void *arg;
+
+ Callback function 'cb' will be called in handshakes, and is
+ expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
+ Argument 'arg' is for application purposes (the value as given to
+ SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
+ be provided to the callback function). The callback function
+ has to return non-zero to report success: usually 1 to use opaque
+ PRF input just if possible, or 2 to enforce use of the opaque PRF
+ input. In the latter case, the library will abort the handshake
+ if opaque PRF input is not successfully negotiated.
+
+ Arguments 'peerinput' and 'len' given to the callback function
+ will always be NULL and 0 in the case of a client. A server will
+ see the client's opaque PRF input through these variables if
+ available (NULL and 0 otherwise). Note that if the server
+ provides an opaque PRF input, the length must be the same as the
+ length of the client's opaque PRF input.
+
+ Note that the callback function will only be called when creating
+ a new session (session resumption can resume whatever was
+ previously negotiated), and will not be called in SSL 2.0
+ handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
+ SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
+ for applications that need to enforce opaque PRF input.
+
+ [Bodo Moeller]
+
+ *) Update ssl code to support digests other than SHA1+MD5 for handshake
+ MAC.
+
+ [Victor B. Wagner <vitus@cryptocom.ru>]
+
+ *) Add RFC4507 support to OpenSSL. This includes the corrections in
+ RFC4507bis. The encrypted ticket format is an encrypted encoded
+ SSL_SESSION structure, that way new session features are automatically
+ supported.
+
+ If a client application caches session in an SSL_SESSION structure
+ support is transparent because tickets are now stored in the encoded
+ SSL_SESSION.
+
+ The SSL_CTX structure automatically generates keys for ticket
+ protection in servers so again support should be possible
+ with no application modification.
+
+ If a client or server wishes to disable RFC4507 support then the option
+ SSL_OP_NO_TICKET can be set.
+
+ Add a TLS extension debugging callback to allow the contents of any client
+ or server extensions to be examined.
+
+ This work was sponsored by Google.
+ [Steve Henson]
+
+ *) Final changes to avoid use of pointer pointer casts in OpenSSL.
+ OpenSSL should now compile cleanly on gcc 4.2
+ [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
+
+ *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
+ support including streaming MAC support: this is required for GOST
+ ciphersuite support.
+ [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
+
+ *) Add option -stream to use PKCS#7 streaming in smime utility. New
+ function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
+ to output in BER and PEM format.
+ [Steve Henson]
+
+ *) Experimental support for use of HMAC via EVP_PKEY interface. This
+ allows HMAC to be handled via the EVP_DigestSign*() interface. The
+ EVP_PKEY "key" in this case is the HMAC key, potentially allowing
+ ENGINE support for HMAC keys which are unextractable. New -mac and
+ -macopt options to dgst utility.
+ [Steve Henson]
+
+ *) New option -sigopt to dgst utility. Update dgst to use
+ EVP_Digest{Sign,Verify}*. These two changes make it possible to use
+ alternative signing paramaters such as X9.31 or PSS in the dgst
+ utility.
+ [Steve Henson]
+
+ *) Change ssl_cipher_apply_rule(), the internal function that does
+ the work each time a ciphersuite string requests enabling
+ ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
+ removing ("!foo+bar") a class of ciphersuites: Now it maintains
+ the order of disabled ciphersuites such that those ciphersuites
+ that most recently went from enabled to disabled not only stay
+ in order with respect to each other, but also have higher priority
+ than other disabled ciphersuites the next time ciphersuites are
+ enabled again.
+
+ This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
+ the same ciphersuites as with "HIGH" alone, but in a specific
+ order where the PSK ciphersuites come first (since they are the
+ most recently disabled ciphersuites when "HIGH" is parsed).
+
+ Also, change ssl_create_cipher_list() (using this new
+ funcionality) such that between otherwise identical
+ cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
+ the default order.
+ [Bodo Moeller]
+
+ *) Change ssl_create_cipher_list() so that it automatically
+ arranges the ciphersuites in reasonable order before starting
+ to process the rule string. Thus, the definition for "DEFAULT"
+ (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
+ remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
+ This makes it much easier to arrive at a reasonable default order
+ in applications for which anonymous ciphers are OK (meaning
+ that you can't actually use DEFAULT).
+ [Bodo Moeller; suggested by Victor Duchovni]
+
+ *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
+ processing) into multiple integers instead of setting
+ "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
+ "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
+ (These masks as well as the individual bit definitions are hidden
+ away into the non-exported interface ssl/ssl_locl.h, so this
+ change to the definition of the SSL_CIPHER structure shouldn't
+ affect applications.) This give us more bits for each of these
+ categories, so there is no longer a need to coagulate AES128 and
+ AES256 into a single algorithm bit, and to coagulate Camellia128
+ and Camellia256 into a single algorithm bit, which has led to all
+ kinds of kludges.
+
+ Thus, among other things, the kludge introduced in 0.9.7m and
+ 0.9.8e for masking out AES256 independently of AES128 or masking
+ out Camellia256 independently of AES256 is not needed here in 0.9.9.
+
+ With the change, we also introduce new ciphersuite aliases that
+ so far were missing: "AES128", "AES256", "CAMELLIA128", and
+ "CAMELLIA256".
+ [Bodo Moeller]
+
+ *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
+ Use the leftmost N bytes of the signature input if the input is
+ larger than the prime q (with N being the size in bytes of q).
+ [Nils Larsch]
+
+ *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
+ it yet and it is largely untested.
+ [Steve Henson]
+
+ *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
+ [Nils Larsch]
+
+ *) Initial incomplete changes to avoid need for function casts in OpenSSL
+ some compilers (gcc 4.2 and later) reject their use. Safestack is
+ reimplemented. Update ASN1 to avoid use of legacy functions.
+ [Steve Henson]
+
+ *) Win32/64 targets are linked with Winsock2.
+ [Andy Polyakov]
+
+ *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
+ to external functions. This can be used to increase CRL handling
+ efficiency especially when CRLs are very large by (for example) storing
+ the CRL revoked certificates in a database.
+ [Steve Henson]
+
+ *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
+ new CRLs added to a directory can be used. New command line option
+ -verify_return_error to s_client and s_server. This causes real errors
+ to be returned by the verify callback instead of carrying on no matter
+ what. This reflects the way a "real world" verify callback would behave.
+ [Steve Henson]
+
+ *) GOST engine, supporting several GOST algorithms and public key formats.
+ Kindly donated by Cryptocom.
+ [Cryptocom]
+
+ *) Partial support for Issuing Distribution Point CRL extension. CRLs
+ partitioned by DP are handled but no indirect CRL or reason partitioning
+ (yet). Complete overhaul of CRL handling: now the most suitable CRL is
+ selected via a scoring technique which handles IDP and AKID in CRLs.
+ [Steve Henson]
+
+ *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
+ will ultimately be used for all verify operations: this will remove the
+ X509_STORE dependency on certificate verification and allow alternative
+ lookup methods. X509_STORE based implementations of these two callbacks.
+ [Steve Henson]
+
+ *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
+ Modify get_crl() to find a valid (unexpired) CRL if possible.
+ [Steve Henson]
+
+ *) New function X509_CRL_match() to check if two CRLs are identical. Normally
+ this would be called X509_CRL_cmp() but that name is already used by
+ a function that just compares CRL issuer names. Cache several CRL
+ extensions in X509_CRL structure and cache CRLDP in X509.
+ [Steve Henson]
+
+ *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
+ this maps equivalent X509_NAME structures into a consistent structure.
+ Name comparison can then be performed rapidly using memcmp().
+ [Steve Henson]
+
+ *) Non-blocking OCSP request processing. Add -timeout option to ocsp
+ utility.
+ [Steve Henson]
+
+ *) Allow digests to supply their own micalg string for S/MIME type using
+ the ctrl EVP_MD_CTRL_MICALG.
+ [Steve Henson]
+
+ *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
+ EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
+ ctrl. It can then customise the structure before and/or after signing
+ if necessary.
+ [Steve Henson]
+
+ *) New function OBJ_add_sigid() to allow application defined signature OIDs
+ to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
+ to free up any added signature OIDs.
+ [Steve Henson]
+
+ *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
+ EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
+ digest and cipher tables. New options added to openssl utility:
+ list-message-digest-algorithms and list-cipher-algorithms.
+ [Steve Henson]
+
+ *) Change the array representation of binary polynomials: the list
+ of degrees of non-zero coefficients is now terminated with -1.
+ Previously it was terminated with 0, which was also part of the
+ value; thus, the array representation was not applicable to
+ polynomials where t^0 has coefficient zero. This change makes
+ the array representation useful in a more general context.
+ [Douglas Stebila]
+
+ *) Various modifications and fixes to SSL/TLS cipher string
+ handling. For ECC, the code now distinguishes between fixed ECDH
+ with RSA certificates on the one hand and with ECDSA certificates
+ on the other hand, since these are separate ciphersuites. The
+ unused code for Fortezza ciphersuites has been removed.
+
+ For consistency with EDH, ephemeral ECDH is now called "EECDH"
+ (not "ECDHE"). For consistency with the code for DH
+ certificates, use of ECDH certificates is now considered ECDH
+ authentication, not RSA or ECDSA authentication (the latter is
+ merely the CA's signing algorithm and not actively used in the
+ protocol).
+
+ The temporary ciphersuite alias "ECCdraft" is no longer
+ available, and ECC ciphersuites are no longer excluded from "ALL"
+ and "DEFAULT". The following aliases now exist for RFC 4492
+ ciphersuites, most of these by analogy with the DH case:
+
+ kECDHr - ECDH cert, signed with RSA
+ kECDHe - ECDH cert, signed with ECDSA
+ kECDH - ECDH cert (signed with either RSA or ECDSA)
+ kEECDH - ephemeral ECDH
+ ECDH - ECDH cert or ephemeral ECDH
+
+ aECDH - ECDH cert
+ aECDSA - ECDSA cert
+ ECDSA - ECDSA cert
+
+ AECDH - anonymous ECDH
+ EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
+
+ [Bodo Moeller]
+
+ *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
+ Use correct micalg parameters depending on digest(s) in signed message.
+ [Steve Henson]
+
+ *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
+ an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
+ [Steve Henson]
+
+ *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
+ an engine to register a method. Add ENGINE lookups for methods and
+ functional reference processing.
+ [Steve Henson]
+
+ *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
+ EVP_{Sign,Verify}* which allow an application to customise the signature
+ process.
+ [Steve Henson]
+
+ *) New -resign option to smime utility. This adds one or more signers
+ to an existing PKCS#7 signedData structure. Also -md option to use an
+ alternative message digest algorithm for signing.
+ [Steve Henson]
+
+ *) Tidy up PKCS#7 routines and add new functions to make it easier to
+ create PKCS7 structures containing multiple signers. Update smime
+ application to support multiple signers.
+ [Steve Henson]
+
+ *) New -macalg option to pkcs12 utility to allow setting of an alternative
+ digest MAC.
+ [Steve Henson]
+
+ *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
+ Reorganize PBE internals to lookup from a static table using NIDs,
+ add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
+ EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
+ PRF which will be automatically used with PBES2.
+ [Steve Henson]
+
+ *) Replace the algorithm specific calls to generate keys in "req" with the
+ new API.
+ [Steve Henson]
+
+ *) Update PKCS#7 enveloped data routines to use new API. This is now
+ supported by any public key method supporting the encrypt operation. A
+ ctrl is added to allow the public key algorithm to examine or modify
+ the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
+ a no op.
+ [Steve Henson]
+
+ *) Add a ctrl to asn1 method to allow a public key algorithm to express
+ a default digest type to use. In most cases this will be SHA1 but some
+ algorithms (such as GOST) need to specify an alternative digest. The
+ return value indicates how strong the prefernce is 1 means optional and
+ 2 is mandatory (that is it is the only supported type). Modify
+ ASN1_item_sign() to accept a NULL digest argument to indicate it should
+ use the default md. Update openssl utilities to use the default digest
+ type for signing if it is not explicitly indicated.
+ [Steve Henson]
+
+ *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
+ EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
+ signing method from the key type. This effectively removes the link
+ between digests and public key types.
+ [Steve Henson]
+
+ *) Add an OID cross reference table and utility functions. Its purpose is to
+ translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
+ rsaEncryption. This will allow some of the algorithm specific hackery
+ needed to use the correct OID to be removed.
+ [Steve Henson]
+
+ *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
+ structures for PKCS7_sign(). They are now set up by the relevant public
+ key ASN1 method.
+ [Steve Henson]
+
+ *) Add provisional EC pkey method with support for ECDSA and ECDH.
+ [Steve Henson]
+
+ *) Add support for key derivation (agreement) in the API, DH method and
+ pkeyutl.
+ [Steve Henson]
+
+ *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
+ public and private key formats. As a side effect these add additional
+ command line functionality not previously available: DSA signatures can be
+ generated and verified using pkeyutl and DH key support and generation in
+ pkey, genpkey.
+ [Steve Henson]
+
+ *) BeOS support.
+ [Oliver Tappe <zooey@hirschkaefer.de>]
+
+ *) New make target "install_html_docs" installs HTML renditions of the
+ manual pages.
+ [Oliver Tappe <zooey@hirschkaefer.de>]
+
+ *) New utility "genpkey" this is analagous to "genrsa" etc except it can
+ generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
+ support key and parameter generation and add initial key generation
+ functionality for RSA.
+ [Steve Henson]
+
+ *) Add functions for main EVP_PKEY_method operations. The undocumented
+ functions EVP_PKEY_{encrypt,decrypt} have been renamed to
+ EVP_PKEY_{encrypt,decrypt}_old.
+ [Steve Henson]
+
+ *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
+ key API, doesn't do much yet.
+ [Steve Henson]
+
+ *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
+ public key algorithms. New option to openssl utility:
+ "list-public-key-algorithms" to print out info.
+ [Steve Henson]
+
+ *) Implement the Supported Elliptic Curves Extension for
+ ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
+ [Douglas Stebila]
+
+ *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
+ EVP_CIPHER structures to avoid later problems in EVP_cleanup().
+ [Steve Henson]
+
+ *) New utilities pkey and pkeyparam. These are similar to algorithm specific
+ utilities such as rsa, dsa, dsaparam etc except they process any key
+ type.
+ [Steve Henson]
+
+ *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
+ functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
+ EVP_PKEY_print_param() to print public key data from an EVP_PKEY
+ structure.
+ [Steve Henson]
+
+ *) Initial support for pluggable public key ASN1.
+ De-spaghettify the public key ASN1 handling. Move public and private
+ key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
+ algorithm specific handling to a single module within the relevant
+ algorithm directory. Add functions to allow (near) opaque processing
+ of public and private key structures.
+ [Steve Henson]
+
+ *) Implement the Supported Point Formats Extension for
+ ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
+ [Douglas Stebila]
+
+ *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
+ for the psk identity [hint] and the psk callback functions to the
+ SSL_SESSION, SSL and SSL_CTX structure.
+
+ New ciphersuites:
+ PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
+ PSK-AES256-CBC-SHA
+
+ New functions:
+ SSL_CTX_use_psk_identity_hint
+ SSL_get_psk_identity_hint
+ SSL_get_psk_identity
+ SSL_use_psk_identity_hint
+
+ [Mika Kousa and Pasi Eronen of Nokia Corporation]
+
+ *) Add RFC 3161 compliant time stamp request creation, response generation
+ and response verification functionality.
+ [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
+
+ *) Add initial support for TLS extensions, specifically for the server_name
+ extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
+ have new members for a host name. The SSL data structure has an
+ additional member SSL_CTX *initial_ctx so that new sessions can be
+ stored in that context to allow for session resumption, even after the
+ SSL has been switched to a new SSL_CTX in reaction to a client's
+ server_name extension.
+
+ New functions (subject to change):
+
+ SSL_get_servername()
+ SSL_get_servername_type()
+ SSL_set_SSL_CTX()
+
+ New CTRL codes and macros (subject to change):
+
+ SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
+ - SSL_CTX_set_tlsext_servername_callback()
+ SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
+ - SSL_CTX_set_tlsext_servername_arg()
+ SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
+
+ openssl s_client has a new '-servername ...' option.
+
+ openssl s_server has new options '-servername_host ...', '-cert2 ...',
+ '-key2 ...', '-servername_fatal' (subject to change). This allows
+ testing the HostName extension for a specific single host name ('-cert'
+ and '-key' remain fallbacks for handshakes without HostName
+ negotiation). If the unrecogninzed_name alert has to be sent, this by
+ default is a warning; it becomes fatal with the '-servername_fatal'
+ option.
+
+ [Peter Sylvester, Remy Allais, Christophe Renou]
+
+ *) Whirlpool hash implementation is added.
+ [Andy Polyakov]
+
+ *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
+ bn(64,32). Because of instruction set limitations it doesn't have
+ any negative impact on performance. This was done mostly in order
+ to make it possible to share assembler modules, such as bn_mul_mont
+ implementations, between 32- and 64-bit builds without hassle.
+ [Andy Polyakov]
+
+ *) Move code previously exiled into file crypto/ec/ec2_smpt.c
+ to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
+ macro.
+ [Bodo Moeller]
+
+ *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
+ dedicated Montgomery multiplication procedure, is introduced.
+ BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
+ "64-bit" performance on certain 32-bit targets.
+ [Andy Polyakov]
+
+ *) New option SSL_OP_NO_COMP to disable use of compression selectively
+ in SSL structures. New SSL ctrl to set maximum send fragment size.
+ Save memory by seeting the I/O buffer sizes dynamically instead of
+ using the maximum available value.
+ [Steve Henson]
+
+ *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
+ in addition to the text details.
+ [Bodo Moeller]
+
+ *) Very, very preliminary EXPERIMENTAL support for printing of general
+ ASN1 structures. This currently produces rather ugly output and doesn't
+ handle several customised structures at all.
+ [Steve Henson]
+
+ *) Integrated support for PVK file format and some related formats such
+ as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
+ these in the 'rsa' and 'dsa' utilities.
+ [Steve Henson]
+
+ *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
+ [Steve Henson]
+
+ *) Remove the ancient ASN1_METHOD code. This was only ever used in one
+ place for the (very old) "NETSCAPE" format certificates which are now
+ handled using new ASN1 code equivalents.
+ [Steve Henson]
+
+ *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
+ pointer and make the SSL_METHOD parameter in SSL_CTX_new,
+ SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
+ [Nils Larsch]
+
+ *) Modify CRL distribution points extension code to print out previously
+ unsupported fields. Enhance extension setting code to allow setting of
+ all fields.
+ [Steve Henson]
+
+ *) Add print and set support for Issuing Distribution Point CRL extension.
+ [Steve Henson]
+
+ *) Change 'Configure' script to enable Camellia by default.
+ [NTT]
+
+ Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
+
+ *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
+ [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
+
+ *) Fix bug in string printing code: if *any* escaping is enabled we must
+ escape the escape character (backslash) or the resulting string is
+ ambiguous.
+ [Steve Henson]
+
+ Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
+
+ *) Disable code workaround for ancient and obsolete Netscape browsers
+ and servers: an attacker can use it in a ciphersuite downgrade attack.
+ Thanks to Martin Rex for discovering this bug. CVE-2010-4180
+ [Steve Henson]
+
+ *) Fixed J-PAKE implementation error, originally discovered by
+ Sebastien Martini, further info and confirmation from Stefan
+ Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
+ [Ben Laurie]
+
+ Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
+
+ *) Fix extension code to avoid race conditions which can result in a buffer
+ overrun vulnerability: resumed sessions must not be modified as they can
+ be shared by multiple threads. CVE-2010-3864
+ [Steve Henson]
+
+ *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
+ [Steve Henson]
+
+ *) Don't reencode certificate when calculating signature: cache and use
+ the original encoding instead. This makes signature verification of
+ some broken encodings work correctly.
+ [Steve Henson]
+
+ *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
+ is also one of the inputs.
+ [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
+
+ *) Don't repeatedly append PBE algorithms to table if they already exist.
+ Sort table on each new add. This effectively makes the table read only
+ after all algorithms are added and subsequent calls to PKCS12_pbe_add
+ etc are non-op.
+ [Steve Henson]
+
+ Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
+
+ [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
+ OpenSSL 1.0.0.]
+
+ *) Correct a typo in the CMS ASN1 module which can result in invalid memory
+ access or freeing data twice (CVE-2010-0742)
+ [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
+
+ *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
+ common in certificates and some applications which only call
+ SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
+ [Steve Henson]
+
+ *) VMS fixes:
+ Reduce copying into .apps and .test in makevms.com
+ Don't try to use blank CA certificate in CA.com
+ Allow use of C files from original directories in maketests.com
+ [Steven M. Schweda" <sms@antinode.info>]
+
+ Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
+
+ *) When rejecting SSL/TLS records due to an incorrect version number, never
+ update s->server with a new major version number. As of
+ - OpenSSL 0.9.8m if 'short' is a 16-bit type,
+ - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
+ the previous behavior could result in a read attempt at NULL when
+ receiving specific incorrect SSL/TLS records once record payload
+ protection is active. (CVE-2010-0740)
+ [Bodo Moeller, Adam Langley <agl@chromium.org>]
+
+ *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
+ could be crashed if the relevant tables were not present (e.g. chrooted).
+ [Tomas Hoger <thoger@redhat.com>]
+
+ Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
+
+ *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
+ [Martin Olsson, Neel Mehta]
+
+ *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
+ accommodate for stack sorting, always a write lock!).
+ [Bodo Moeller]
+
+ *) On some versions of WIN32 Heap32Next is very slow. This can cause
+ excessive delays in the RAND_poll(): over a minute. As a workaround
+ include a time check in the inner Heap32Next loop too.
+ [Steve Henson]
+
+ *) The code that handled flushing of data in SSL/TLS originally used the
+ BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
+ the problem outlined in PR#1949. The fix suggested there however can
+ trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
+ of Apache). So instead simplify the code to flush unconditionally.
+ This should be fine since flushing with no data to flush is a no op.
+ [Steve Henson]
+
+ *) Handle TLS versions 2.0 and later properly and correctly use the
+ highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
+ off ancient servers have a habit of sticking around for a while...
+ [Steve Henson]
+
+ *) Modify compression code so it frees up structures without using the
+ ex_data callbacks. This works around a problem where some applications
+ call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
+ restarting) then use compression (e.g. SSL with compression) later.
+ This results in significant per-connection memory leaks and
+ has caused some security issues including CVE-2008-1678 and
+ CVE-2009-4355.
+ [Steve Henson]
+
+ *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
+ change when encrypting or decrypting.
+ [Bodo Moeller]
+
+ *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
+ connect and renegotiate with servers which do not support RI.
+ Until RI is more widely deployed this option is enabled by default.
+ [Steve Henson]
+
+ *) Add "missing" ssl ctrls to clear options and mode.
+ [Steve Henson]
+
+ *) If client attempts to renegotiate and doesn't support RI respond with
+ a no_renegotiation alert as required by RFC5746. Some renegotiating
+ TLS clients will continue a connection gracefully when they receive
+ the alert. Unfortunately OpenSSL mishandled this alert and would hang
+ waiting for a server hello which it will never receive. Now we treat a
+ received no_renegotiation alert as a fatal error. This is because
+ applications requesting a renegotiation might well expect it to succeed
+ and would have no code in place to handle the server denying it so the
+ only safe thing to do is to terminate the connection.
+ [Steve Henson]
+
+ *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
+ peer supports secure renegotiation and 0 otherwise. Print out peer
+ renegotiation support in s_client/s_server.
+ [Steve Henson]
+
+ *) Replace the highly broken and deprecated SPKAC certification method with
+ the updated NID creation version. This should correctly handle UTF8.
+ [Steve Henson]
+
+ *) Implement RFC5746. Re-enable renegotiation but require the extension
+ as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
+ turns out to be a bad idea. It has been replaced by
+ SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
+ SSL_CTX_set_options(). This is really not recommended unless you
+ know what you are doing.
+ [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
+
+ *) Fixes to stateless session resumption handling. Use initial_ctx when
+ issuing and attempting to decrypt tickets in case it has changed during
+ servername handling. Use a non-zero length session ID when attempting
+ stateless session resumption: this makes it possible to determine if
+ a resumption has occurred immediately after receiving server hello
+ (several places in OpenSSL subtly assume this) instead of later in
+ the handshake.
+ [Steve Henson]
+
+ *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
+ CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
+ fixes for a few places where the return code is not checked
+ correctly.
+ [Julia Lawall <julia@diku.dk>]
+
+ *) Add --strict-warnings option to Configure script to include devteam
+ warnings in other configurations.
+ [Steve Henson]
+
+ *) Add support for --libdir option and LIBDIR variable in makefiles. This
+ makes it possible to install openssl libraries in locations which
+ have names other than "lib", for example "/usr/lib64" which some
+ systems need.
+ [Steve Henson, based on patch from Jeremy Utley]
+
+ *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
+ X690 8.9.12 and can produce some misleading textual output of OIDs.
+ [Steve Henson, reported by Dan Kaminsky]
+
+ *) Delete MD2 from algorithm tables. This follows the recommendation in
+ several standards that it is not used in new applications due to
+ several cryptographic weaknesses. For binary compatibility reasons
+ the MD2 API is still compiled in by default.
+ [Steve Henson]
+
+ *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
+ and restored.
+ [Steve Henson]
+
+ *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
+ OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
+ clash.
+ [Guenter <lists@gknw.net>]
+
+ *) Fix the server certificate chain building code to use X509_verify_cert(),
+ it used to have an ad-hoc builder which was unable to cope with anything
+ other than a simple chain.
+ [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
+
+ *) Don't check self signed certificate signatures in X509_verify_cert()
+ by default (a flag can override this): it just wastes time without
+ adding any security. As a useful side effect self signed root CAs
+ with non-FIPS digests are now usable in FIPS mode.
+ [Steve Henson]
+
+ *) In dtls1_process_out_of_seq_message() the check if the current message
+ is already buffered was missing. For every new message was memory
+ allocated, allowing an attacker to perform an denial of service attack
+ with sending out of seq handshake messages until there is no memory
+ left. Additionally every future messege was buffered, even if the
+ sequence number made no sense and would be part of another handshake.
+ So only messages with sequence numbers less than 10 in advance will be
+ buffered. (CVE-2009-1378)
+ [Robin Seggelmann, discovered by Daniel Mentz]
+
+ *) Records are buffered if they arrive with a future epoch to be
+ processed after finishing the corresponding handshake. There is
+ currently no limitation to this buffer allowing an attacker to perform
+ a DOS attack with sending records with future epochs until there is no
+ memory left. This patch adds the pqueue_size() function to detemine
+ the size of a buffer and limits the record buffer to 100 entries.
+ (CVE-2009-1377)
+ [Robin Seggelmann, discovered by Daniel Mentz]
+
+ *) Keep a copy of frag->msg_header.frag_len so it can be used after the
+ parent structure is freed. (CVE-2009-1379)
+ [Daniel Mentz]
+
+ *) Handle non-blocking I/O properly in SSL_shutdown() call.
+ [Darryl Miles <darryl-mailinglists@netbauds.net>]
+
+ *) Add 2.5.4.* OIDs
+ [Ilya O. <vrghost@gmail.com>]
+
+ Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
+
+ *) Disable renegotiation completely - this fixes a severe security
+ problem (CVE-2009-3555) at the cost of breaking all
+ renegotiation. Renegotiation can be re-enabled by setting
+ SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
+ run-time. This is really not recommended unless you know what
+ you're doing.
+ [Ben Laurie]
+
+ Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
+
+ *) Don't set val to NULL when freeing up structures, it is freed up by
+ underlying code. If sizeof(void *) > sizeof(long) this can result in
+ zeroing past the valid field. (CVE-2009-0789)
+ [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
+
+ *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
+ checked correctly. This would allow some invalid signed attributes to
+ appear to verify correctly. (CVE-2009-0591)
+ [Ivan Nestlerode <inestlerode@us.ibm.com>]
+
+ *) Reject UniversalString and BMPString types with invalid lengths. This
+ prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
+ a legal length. (CVE-2009-0590)
+ [Steve Henson]
+
+ *) Set S/MIME signing as the default purpose rather than setting it
+ unconditionally. This allows applications to override it at the store
+ level.
+ [Steve Henson]
+
+ *) Permit restricted recursion of ASN1 strings. This is needed in practice
+ to handle some structures.
+ [Steve Henson]
+
+ *) Improve efficiency of mem_gets: don't search whole buffer each time
+ for a '\n'
+ [Jeremy Shapiro <jnshapir@us.ibm.com>]
+
+ *) New -hex option for openssl rand.
+ [Matthieu Herrb]
+
+ *) Print out UTF8String and NumericString when parsing ASN1.
+ [Steve Henson]
+
+ *) Support NumericString type for name components.
+ [Steve Henson]
+
+ *) Allow CC in the environment to override the automatically chosen
+ compiler. Note that nothing is done to ensure flags work with the
+ chosen compiler.
+ [Ben Laurie]
+
+ Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
+
+ *) Properly check EVP_VerifyFinal() and similar return values
+ (CVE-2008-5077).
+ [Ben Laurie, Bodo Moeller, Google Security Team]
+
+ *) Enable TLS extensions by default.
+ [Ben Laurie]
+
+ *) Allow the CHIL engine to be loaded, whether the application is
+ multithreaded or not. (This does not release the developer from the
+ obligation to set up the dynamic locking callbacks.)
+ [Sander Temme <sander@temme.net>]
+
+ *) Use correct exit code if there is an error in dgst command.
+ [Steve Henson; problem pointed out by Roland Dirlewanger]
+
+ *) Tweak Configure so that you need to say "experimental-jpake" to enable
+ JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
+ [Bodo Moeller]
+
+ *) Add experimental JPAKE support, including demo authentication in
+ s_client and s_server.
+ [Ben Laurie]
+
+ *) Set the comparison function in v3_addr_canonize().
+ [Rob Austein <sra@hactrn.net>]
+
+ *) Add support for XMPP STARTTLS in s_client.
+ [Philip Paeps <philip@freebsd.org>]
+
+ *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
+ to ensure that even with this option, only ciphersuites in the
+ server's preference list will be accepted. (Note that the option
+ applies only when resuming a session, so the earlier behavior was
+ just about the algorithm choice for symmetric cryptography.)
+ [Bodo Moeller]
+
+ Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
+
+ *) Fix NULL pointer dereference if a DTLS server received
+ ChangeCipherSpec as first record (CVE-2009-1386).
+ [PR #1679]
+
+ *) Fix a state transitition in s3_srvr.c and d1_srvr.c
+ (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
+ [Nagendra Modadugu]
+
+ *) The fix in 0.9.8c that supposedly got rid of unsafe
+ double-checked locking was incomplete for RSA blinding,
+ addressing just one layer of what turns out to have been
+ doubly unsafe triple-checked locking.
+
+ So now fix this for real by retiring the MONT_HELPER macro
+ in crypto/rsa/rsa_eay.c.
+
+ [Bodo Moeller; problem pointed out by Marius Schilder]
+
+ *) Various precautionary measures:
+
+ - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
+
+ - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
+ (NB: This would require knowledge of the secret session ticket key
+ to exploit, in which case you'd be SOL either way.)
+
+ - Change bn_nist.c so that it will properly handle input BIGNUMs
+ outside the expected range.
+
+ - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
+ builds.
+
+ [Neel Mehta, Bodo Moeller]
+
+ *) Allow engines to be "soft loaded" - i.e. optionally don't die if
+ the load fails. Useful for distros.
+ [Ben Laurie and the FreeBSD team]
+
+ *) Add support for Local Machine Keyset attribute in PKCS#12 files.
+ [Steve Henson]
+
+ *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
+ [Huang Ying]
+
+ *) Expand ENGINE to support engine supplied SSL client certificate functions.
+
+ This work was sponsored by Logica.
+ [Steve Henson]
+
+ *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
+ keystores. Support for SSL/TLS client authentication too.
+ Not compiled unless enable-capieng specified to Configure.
+
+ This work was sponsored by Logica.
+ [Steve Henson]
+
+ *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
+ ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
+ attribute creation routines such as certifcate requests and PKCS#12
+ files.
+ [Steve Henson]
+
+ Changes between 0.9.8g and 0.9.8h [28 May 2008]
+
+ *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
+ handshake which could lead to a cilent crash as found using the
+ Codenomicon TLS test suite (CVE-2008-1672)
+ [Steve Henson, Mark Cox]
+
+ *) Fix double free in TLS server name extensions which could lead to
+ a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
+ [Joe Orton]
+
+ *) Clear error queue in SSL_CTX_use_certificate_chain_file()
+
+ Clear the error queue to ensure that error entries left from
+ older function calls do not interfere with the correct operation.
+ [Lutz Jaenicke, Erik de Castro Lopo]
+
+ *) Remove root CA certificates of commercial CAs:
+
+ The OpenSSL project does not recommend any specific CA and does not
+ have any policy with respect to including or excluding any CA.
+ Therefore it does not make any sense to ship an arbitrary selection
+ of root CA certificates with the OpenSSL software.
+ [Lutz Jaenicke]
+
+ *) RSA OAEP patches to fix two separate invalid memory reads.
+ The first one involves inputs when 'lzero' is greater than
+ 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
+ before the beginning of from). The second one involves inputs where
+ the 'db' section contains nothing but zeroes (there is a one-byte
+ invalid read after the end of 'db').
+ [Ivan Nestlerode <inestlerode@us.ibm.com>]
+
+ *) Partial backport from 0.9.9-dev:
+
+ Introduce bn_mul_mont (dedicated Montgomery multiplication
+ procedure) as a candidate for BIGNUM assembler implementation.
+ While 0.9.9-dev uses assembler for various architectures, only
+ x86_64 is available by default here in the 0.9.8 branch, and
+ 32-bit x86 is available through a compile-time setting.
+
+ To try the 32-bit x86 assembler implementation, use Configure
+ option "enable-montasm" (which exists only for this backport).
+
+ As "enable-montasm" for 32-bit x86 disclaims code stability
+ anyway, in this constellation we activate additional code
+ backported from 0.9.9-dev for further performance improvements,
+ namely BN_from_montgomery_word. (To enable this otherwise,
+ e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
+
+ [Andy Polyakov (backport partially by Bodo Moeller)]
+
+ *) Add TLS session ticket callback. This allows an application to set
+ TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
+ values. This is useful for key rollover for example where several key
+ sets may exist with different names.
+ [Steve Henson]
+
+ *) Reverse ENGINE-internal logic for caching default ENGINE handles.
+ This was broken until now in 0.9.8 releases, such that the only way
+ a registered ENGINE could be used (assuming it initialises
+ successfully on the host) was to explicitly set it as the default
+ for the relevant algorithms. This is in contradiction with 0.9.7
+ behaviour and the documentation. With this fix, when an ENGINE is
+ registered into a given algorithm's table of implementations, the
+ 'uptodate' flag is reset so that auto-discovery will be used next
+ time a new context for that algorithm attempts to select an
+ implementation.
+ [Ian Lister (tweaked by Geoff Thorpe)]
+
+ *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
+ implemention in the following ways:
+
+ Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
+ hard coded.
+
+ Lack of BER streaming support means one pass streaming processing is
+ only supported if data is detached: setting the streaming flag is
+ ignored for embedded content.
+
+ CMS support is disabled by default and must be explicitly enabled
+ with the enable-cms configuration option.
+ [Steve Henson]
+
+ *) Update the GMP engine glue to do direct copies between BIGNUM and
+ mpz_t when openssl and GMP use the same limb size. Otherwise the
+ existing "conversion via a text string export" trick is still used.
+ [Paul Sheer <paulsheer@gmail.com>]
+
+ *) Zlib compression BIO. This is a filter BIO which compressed and
+ uncompresses any data passed through it.
+ [Steve Henson]
+
+ *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
+ RFC3394 compatible AES key wrapping.
+ [Steve Henson]
+
+ *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
+ sets string data without copying. X509_ALGOR_set0() and
+ X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
+ data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
+ from an X509_ATTRIBUTE structure optionally checking it occurs only
+ once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
+ data.
+ [Steve Henson]
+
+ *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
+ to get the expected BN_FLG_CONSTTIME behavior.
+ [Bodo Moeller (Google)]
+
+ *) Netware support:
+
+ - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
+ - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
+ - added some more tests to do_tests.pl
+ - fixed RunningProcess usage so that it works with newer LIBC NDKs too
+ - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
+ - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
+ netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
+ - various changes to netware.pl to enable gcc-cross builds on Win32
+ platform
+ - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
+ - various changes to fix missing prototype warnings
+ - fixed x86nasm.pl to create correct asm files for NASM COFF output
+ - added AES, WHIRLPOOL and CPUID assembler code to build files
+ - added missing AES assembler make rules to mk1mf.pl
+ - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
+ [Guenter Knauf <eflash@gmx.net>]
+
+ *) Implement certificate status request TLS extension defined in RFC3546.
+ A client can set the appropriate parameters and receive the encoded
+ OCSP response via a callback. A server can query the supplied parameters
+ and set the encoded OCSP response in the callback. Add simplified examples
+ to s_client and s_server.
+ [Steve Henson]
+
+ Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
+
+ *) Fix various bugs:
+ + Binary incompatibility of ssl_ctx_st structure
+ + DTLS interoperation with non-compliant servers
+ + Don't call get_session_cb() without proposed session
+ + Fix ia64 assembler code
+ [Andy Polyakov, Steve Henson]
+
+ Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
+
+ *) DTLS Handshake overhaul. There were longstanding issues with
+ OpenSSL DTLS implementation, which were making it impossible for
+ RFC 4347 compliant client to communicate with OpenSSL server.
+ Unfortunately just fixing these incompatibilities would "cut off"
+ pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
+ server keeps tolerating non RFC compliant syntax. The opposite is
+ not true, 0.9.8f client can not communicate with earlier server.
+ This update even addresses CVE-2007-4995.
+ [Andy Polyakov]
+
+ *) Changes to avoid need for function casts in OpenSSL: some compilers
+ (gcc 4.2 and later) reject their use.
+ [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
+ Steve Henson]
+
+ *) Add RFC4507 support to OpenSSL. This includes the corrections in
+ RFC4507bis. The encrypted ticket format is an encrypted encoded
+ SSL_SESSION structure, that way new session features are automatically
+ supported.
+
+ If a client application caches session in an SSL_SESSION structure
+ support is transparent because tickets are now stored in the encoded
+ SSL_SESSION.
+
+ The SSL_CTX structure automatically generates keys for ticket
+ protection in servers so again support should be possible
+ with no application modification.
+
+ If a client or server wishes to disable RFC4507 support then the option
+ SSL_OP_NO_TICKET can be set.
+
+ Add a TLS extension debugging callback to allow the contents of any client
+ or server extensions to be examined.
+
+ This work was sponsored by Google.
+ [Steve Henson]
+
+ *) Add initial support for TLS extensions, specifically for the server_name
+ extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
+ have new members for a host name. The SSL data structure has an
+ additional member SSL_CTX *initial_ctx so that new sessions can be
+ stored in that context to allow for session resumption, even after the
+ SSL has been switched to a new SSL_CTX in reaction to a client's
+ server_name extension.
+
+ New functions (subject to change):
+
+ SSL_get_servername()
+ SSL_get_servername_type()
+ SSL_set_SSL_CTX()
+
+ New CTRL codes and macros (subject to change):
+
+ SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
+ - SSL_CTX_set_tlsext_servername_callback()
+ SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
+ - SSL_CTX_set_tlsext_servername_arg()
+ SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
+
+ openssl s_client has a new '-servername ...' option.
+
+ openssl s_server has new options '-servername_host ...', '-cert2 ...',
+ '-key2 ...', '-servername_fatal' (subject to change). This allows
+ testing the HostName extension for a specific single host name ('-cert'
+ and '-key' remain fallbacks for handshakes without HostName
+ negotiation). If the unrecogninzed_name alert has to be sent, this by
+ default is a warning; it becomes fatal with the '-servername_fatal'
+ option.
+
+ [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
+
+ *) Add AES and SSE2 assembly language support to VC++ build.
+ [Steve Henson]
+
+ *) Mitigate attack on final subtraction in Montgomery reduction.
+ [Andy Polyakov]
+
+ *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
+ (which previously caused an internal error).
+ [Bodo Moeller]
+
+ *) Squeeze another 10% out of IGE mode when in != out.
+ [Ben Laurie]
+
+ *) AES IGE mode speedup.
+ [Dean Gaudet (Google)]
+
+ *) Add the Korean symmetric 128-bit cipher SEED (see
+ http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
+ add SEED ciphersuites from RFC 4162:
+
+ TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
+ TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
+ TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
+ TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
+
+ To minimize changes between patchlevels in the OpenSSL 0.9.8
+ series, SEED remains excluded from compilation unless OpenSSL
+ is configured with 'enable-seed'.
+ [KISA, Bodo Moeller]
+
+ *) Mitigate branch prediction attacks, which can be practical if a
+ single processor is shared, allowing a spy process to extract
+ information. For detailed background information, see
+ http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
+ J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
+ and Necessary Software Countermeasures"). The core of the change
+ are new versions BN_div_no_branch() and
+ BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
+ respectively, which are slower, but avoid the security-relevant
+ conditional branches. These are automatically called by BN_div()
+ and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
+ of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
+ remove a conditional branch.
+
+ BN_FLG_CONSTTIME is the new name for the previous
+ BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
+ modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
+ in the exponent causes BN_mod_exp_mont() to use the alternative
+ implementation in BN_mod_exp_mont_consttime().) The old name
+ remains as a deprecated alias.
+
+ Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
+ RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
+ constant-time implementations for more than just exponentiation.
+ Here too the old name is kept as a deprecated alias.
+
+ BN_BLINDING_new() will now use BN_dup() for the modulus so that
+ the BN_BLINDING structure gets an independent copy of the
+ modulus. This means that the previous "BIGNUM *m" argument to
+ BN_BLINDING_new() and to BN_BLINDING_create_param() now
+ essentially becomes "const BIGNUM *m", although we can't actually
+ change this in the header file before 0.9.9. It allows
+ RSA_setup_blinding() to use BN_with_flags() on the modulus to
+ enable BN_FLG_CONSTTIME.
+
+ [Matthew D Wood (Intel Corp)]
+
+ *) In the SSL/TLS server implementation, be strict about session ID
+ context matching (which matters if an application uses a single
+ external cache for different purposes). Previously,
+ out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
+ set. This did ensure strict client verification, but meant that,
+ with applications using a single external cache for quite
+ different requirements, clients could circumvent ciphersuite
+ restrictions for a given session ID context by starting a session
+ in a different context.
+ [Bodo Moeller]
+
+ *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
+ a ciphersuite string such as "DEFAULT:RSA" cannot enable
+ authentication-only ciphersuites.
+ [Bodo Moeller]
+
+ *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
+ not complete and could lead to a possible single byte overflow
+ (CVE-2007-5135) [Ben Laurie]
+
+ Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
+
+ *) Since AES128 and AES256 (and similarly Camellia128 and
+ Camellia256) share a single mask bit in the logic of
+ ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
+ kludge to work properly if AES128 is available and AES256 isn't
+ (or if Camellia128 is available and Camellia256 isn't).
+ [Victor Duchovni]
+
+ *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
+ (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
+ When a point or a seed is encoded in a BIT STRING, we need to
+ prevent the removal of trailing zero bits to get the proper DER
+ encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
+ of a NamedBitList, for which trailing 0 bits need to be removed.)
+ [Bodo Moeller]
+
+ *) Have SSL/TLS server implementation tolerate "mismatched" record
+ protocol version while receiving ClientHello even if the
+ ClientHello is fragmented. (The server can't insist on the
+ particular protocol version it has chosen before the ServerHello
+ message has informed the client about his choice.)
+ [Bodo Moeller]
+
+ *) Add RFC 3779 support.
+ [Rob Austein for ARIN, Ben Laurie]
+
+ *) Load error codes if they are not already present instead of using a
+ static variable. This allows them to be cleanly unloaded and reloaded.
+ Improve header file function name parsing.
+ [Steve Henson]
+
+ *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
+ or CAPABILITY handshake as required by RFCs.
+ [Goetz Babin-Ebell]
+
+ Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
+
+ *) Introduce limits to prevent malicious keys being able to
+ cause a denial of service. (CVE-2006-2940)
+ [Steve Henson, Bodo Moeller]
+
+ *) Fix ASN.1 parsing of certain invalid structures that can result
+ in a denial of service. (CVE-2006-2937) [Steve Henson]
+
+ *) Fix buffer overflow in SSL_get_shared_ciphers() function.
+ (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
+
+ *) Fix SSL client code which could crash if connecting to a
+ malicious SSLv2 server. (CVE-2006-4343)
+ [Tavis Ormandy and Will Drewry, Google Security Team]
+
+ *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
+ match only those. Before that, "AES256-SHA" would be interpreted
+ as a pattern and match "AES128-SHA" too (since AES128-SHA got
+ the same strength classification in 0.9.7h) as we currently only
+ have a single AES bit in the ciphersuite description bitmap.
+ That change, however, also applied to ciphersuite strings such as
+ "RC4-MD5" that intentionally matched multiple ciphersuites --
+ namely, SSL 2.0 ciphersuites in addition to the more common ones
+ from SSL 3.0/TLS 1.0.
+
+ So we change the selection algorithm again: Naming an explicit
+ ciphersuite selects this one ciphersuite, and any other similar
+ ciphersuite (same bitmap) from *other* protocol versions.
+ Thus, "RC4-MD5" again will properly select both the SSL 2.0
+ ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
+
+ Since SSL 2.0 does not have any ciphersuites for which the
+ 128/256 bit distinction would be relevant, this works for now.
+ The proper fix will be to use different bits for AES128 and
+ AES256, which would have avoided the problems from the beginning;
+ however, bits are scarce, so we can only do this in a new release
+ (not just a patchlevel) when we can change the SSL_CIPHER
+ definition to split the single 'unsigned long mask' bitmap into
+ multiple values to extend the available space.
+
+ [Bodo Moeller]
+
+ Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
+
+ *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
+ (CVE-2006-4339) [Ben Laurie and Google Security Team]
+
+ *) Add AES IGE and biIGE modes.
+ [Ben Laurie]
+
+ *) Change the Unix randomness entropy gathering to use poll() when
+ possible instead of select(), since the latter has some
+ undesirable limitations.
+ [Darryl Miles via Richard Levitte and Bodo Moeller]
+
+ *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
+ treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
+ cannot be implicitly activated as part of, e.g., the "AES" alias.
+ However, please upgrade to OpenSSL 0.9.9[-dev] for
+ non-experimental use of the ECC ciphersuites to get TLS extension
+ support, which is required for curve and point format negotiation
+ to avoid potential handshake problems.
+ [Bodo Moeller]
+
+ *) Disable rogue ciphersuites:
+
+ - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
+ - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
+ - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
+
+ The latter two were purportedly from
+ draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
+ appear there.
+
+ Also deactivate the remaining ciphersuites from
+ draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
+ unofficial, and the ID has long expired.
+ [Bodo Moeller]
+
+ *) Fix RSA blinding Heisenbug (problems sometimes occured on
+ dual-core machines) and other potential thread-safety issues.
+ [Bodo Moeller]
+
+ *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
+ versions), which is now available for royalty-free use
+ (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
+ Also, add Camellia TLS ciphersuites from RFC 4132.
+
+ To minimize changes between patchlevels in the OpenSSL 0.9.8
+ series, Camellia remains excluded from compilation unless OpenSSL
+ is configured with 'enable-camellia'.
+ [NTT]
+
+ *) Disable the padding bug check when compression is in use. The padding
+ bug check assumes the first packet is of even length, this is not
+ necessarily true if compresssion is enabled and can result in false
+ positives causing handshake failure. The actual bug test is ancient
+ code so it is hoped that implementations will either have fixed it by
+ now or any which still have the bug do not support compression.
+ [Steve Henson]
+
+ Changes between 0.9.8a and 0.9.8b [04 May 2006]
+
+ *) When applying a cipher rule check to see if string match is an explicit
+ cipher suite and only match that one cipher suite if it is.
+ [Steve Henson]
+
+ *) Link in manifests for VC++ if needed.
+ [Austin Ziegler <halostatue@gmail.com>]
+
+ *) Update support for ECC-based TLS ciphersuites according to
+ draft-ietf-tls-ecc-12.txt with proposed changes (but without
+ TLS extensions, which are supported starting with the 0.9.9
+ branch, not in the OpenSSL 0.9.8 branch).
+ [Douglas Stebila]
+
+ *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
+ opaque EVP_CIPHER_CTX handling.
+ [Steve Henson]
+
+ *) Fixes and enhancements to zlib compression code. We now only use
+ "zlib1.dll" and use the default __cdecl calling convention on Win32
+ to conform with the standards mentioned here:
+ http://www.zlib.net/DLL_FAQ.txt
+ Static zlib linking now works on Windows and the new --with-zlib-include
+ --with-zlib-lib options to Configure can be used to supply the location
+ of the headers and library. Gracefully handle case where zlib library
+ can't be loaded.
+ [Steve Henson]
+
+ *) Several fixes and enhancements to the OID generation code. The old code
+ sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
+ handle numbers larger than ULONG_MAX, truncated printing and had a
+ non standard OBJ_obj2txt() behaviour.
+ [Steve Henson]
+
+ *) Add support for building of engines under engine/ as shared libraries
+ under VC++ build system.
+ [Steve Henson]
+
+ *) Corrected the numerous bugs in the Win32 path splitter in DSO.
+ Hopefully, we will not see any false combination of paths any more.
+ [Richard Levitte]
+
+ Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
+
+ *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
+ (part of SSL_OP_ALL). This option used to disable the
+ countermeasure against man-in-the-middle protocol-version
+ rollback in the SSL 2.0 server implementation, which is a bad
+ idea. (CVE-2005-2969)
+
+ [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
+ for Information Security, National Institute of Advanced Industrial
+ Science and Technology [AIST], Japan)]
+
+ *) Add two function to clear and return the verify parameter flags.
+ [Steve Henson]
+
+ *) Keep cipherlists sorted in the source instead of sorting them at
+ runtime, thus removing the need for a lock.
+ [Nils Larsch]
+
+ *) Avoid some small subgroup attacks in Diffie-Hellman.
+ [Nick Mathewson and Ben Laurie]
+
+ *) Add functions for well-known primes.
+ [Nick Mathewson]
+
+ *) Extended Windows CE support.
+ [Satoshi Nakamura and Andy Polyakov]
+
+ *) Initialize SSL_METHOD structures at compile time instead of during
+ runtime, thus removing the need for a lock.
+ [Steve Henson]
+
+ *) Make PKCS7_decrypt() work even if no certificate is supplied by
+ attempting to decrypt each encrypted key in turn. Add support to
+ smime utility.
+ [Steve Henson]
+
+ Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
+
+ [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
+ OpenSSL 0.9.8.]
+
+ *) Add libcrypto.pc and libssl.pc for those who feel they need them.
+ [Richard Levitte]
+
+ *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
+ key into the same file any more.
+ [Richard Levitte]
+
+ *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
+ [Andy Polyakov]
+
+ *) Add -utf8 command line and config file option to 'ca'.
+ [Stefan <stf@udoma.org]
+
+ *) Removed the macro des_crypt(), as it seems to conflict with some
+ libraries. Use DES_crypt().
+ [Richard Levitte]
+
+ *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
+ involves renaming the source and generated shared-libs for
+ both. The engines will accept the corrected or legacy ids
+ ('ncipher' and '4758_cca' respectively) when binding. NB,
+ this only applies when building 'shared'.
+ [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
+
+ *) Add attribute functions to EVP_PKEY structure. Modify
+ PKCS12_create() to recognize a CSP name attribute and
+ use it. Make -CSP option work again in pkcs12 utility.
+ [Steve Henson]
+
+ *) Add new functionality to the bn blinding code:
+ - automatic re-creation of the BN_BLINDING parameters after
+ a fixed number of uses (currently 32)
+ - add new function for parameter creation
+ - introduce flags to control the update behaviour of the
+ BN_BLINDING parameters
+ - hide BN_BLINDING structure
+ Add a second BN_BLINDING slot to the RSA structure to improve
+ performance when a single RSA object is shared among several
+ threads.
+ [Nils Larsch]
+
+ *) Add support for DTLS.
+ [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
+
+ *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
+ to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
+ [Walter Goulet]
+
+ *) Remove buggy and incompletet DH cert support from
+ ssl/ssl_rsa.c and ssl/s3_both.c
+ [Nils Larsch]
+
+ *) Use SHA-1 instead of MD5 as the default digest algorithm for
+ the apps/openssl applications.
+ [Nils Larsch]
+
+ *) Compile clean with "-Wall -Wmissing-prototypes
+ -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
+ DEBUG_SAFESTACK must also be set.
+ [Ben Laurie]
+
+ *) Change ./Configure so that certain algorithms can be disabled by default.
+ The new counterpiece to "no-xxx" is "enable-xxx".
+
+ The patented RC5 and MDC2 algorithms will now be disabled unless
+ "enable-rc5" and "enable-mdc2", respectively, are specified.
+
+ (IDEA remains enabled despite being patented. This is because IDEA
+ is frequently required for interoperability, and there is no license
+ fee for non-commercial use. As before, "no-idea" can be used to
+ avoid this algorithm.)
+
+ [Bodo Moeller]
+
+ *) Add processing of proxy certificates (see RFC 3820). This work was
+ sponsored by KTH (The Royal Institute of Technology in Stockholm) and
+ EGEE (Enabling Grids for E-science in Europe).
+ [Richard Levitte]
+
+ *) RC4 performance overhaul on modern architectures/implementations, such
+ as Intel P4, IA-64 and AMD64.
+ [Andy Polyakov]
+
+ *) New utility extract-section.pl. This can be used specify an alternative
+ section number in a pod file instead of having to treat each file as
+ a separate case in Makefile. This can be done by adding two lines to the
+ pod file:
+
+ =for comment openssl_section:XXX
+
+ The blank line is mandatory.
+
+ [Steve Henson]
+
+ *) New arguments -certform, -keyform and -pass for s_client and s_server
+ to allow alternative format key and certificate files and passphrase
+ sources.
+ [Steve Henson]
+
+ *) New structure X509_VERIFY_PARAM which combines current verify parameters,
+ update associated structures and add various utility functions.
+
+ Add new policy related verify parameters, include policy checking in
+ standard verify code. Enhance 'smime' application with extra parameters
+ to support policy checking and print out.
+ [Steve Henson]
+
+ *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
+ Nehemiah processors. These extensions support AES encryption in hardware
+ as well as RNG (though RNG support is currently disabled).
+ [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
+
+ *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
+ [Geoff Thorpe]
+
+ *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
+ [Andy Polyakov and a number of other people]
+
+ *) Improved PowerPC platform support. Most notably BIGNUM assembler
+ implementation contributed by IBM.
+ [Suresh Chari, Peter Waltenberg, Andy Polyakov]
+
+ *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
+ exponent rather than 'unsigned long'. There is a corresponding change to
+ the new 'rsa_keygen' element of the RSA_METHOD structure.
+ [Jelte Jansen, Geoff Thorpe]
+
+ *) Functionality for creating the initial serial number file is now
+ moved from CA.pl to the 'ca' utility with a new option -create_serial.
+
+ (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
+ number file to 1, which is bound to cause problems. To avoid
+ the problems while respecting compatibility between different 0.9.7
+ patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
+ CA.pl for serial number initialization. With the new release 0.9.8,
+ we can fix the problem directly in the 'ca' utility.)
+ [Steve Henson]
+
+ *) Reduced header interdepencies by declaring more opaque objects in
+ ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
+ give fewer recursive includes, which could break lazy source code - so
+ this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
+ developers should define this symbol when building and using openssl to
+ ensure they track the recommended behaviour, interfaces, [etc], but
+ backwards-compatible behaviour prevails when this isn't defined.
+ [Geoff Thorpe]
+
+ *) New function X509_POLICY_NODE_print() which prints out policy nodes.
+ [Steve Henson]
+
+ *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
+ This will generate a random key of the appropriate length based on the
+ cipher context. The EVP_CIPHER can provide its own random key generation
+ routine to support keys of a specific form. This is used in the des and
+ 3des routines to generate a key of the correct parity. Update S/MIME
+ code to use new functions and hence generate correct parity DES keys.
+ Add EVP_CHECK_DES_KEY #define to return an error if the key is not
+ valid (weak or incorrect parity).
+ [Steve Henson]
+
+ *) Add a local set of CRLs that can be used by X509_verify_cert() as well
+ as looking them up. This is useful when the verified structure may contain
+ CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
+ present unless the new PKCS7_NO_CRL flag is asserted.
+ [Steve Henson]
+
+ *) Extend ASN1 oid configuration module. It now additionally accepts the
+ syntax:
+
+ shortName = some long name, 1.2.3.4
+ [Steve Henson]
+
+ *) Reimplemented the BN_CTX implementation. There is now no more static
+ limitation on the number of variables it can handle nor the depth of the
+ "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
+ information can now expand as required, and rather than having a single
+ static array of bignums, BN_CTX now uses a linked-list of such arrays
+ allowing it to expand on demand whilst maintaining the usefulness of
+ BN_CTX's "bundling".
+ [Geoff Thorpe]
+
+ *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
+ to allow all RSA operations to function using a single BN_CTX.
+ [Geoff Thorpe]
+
+ *) Preliminary support for certificate policy evaluation and checking. This
+ is initially intended to pass the tests outlined in "Conformance Testing
+ of Relying Party Client Certificate Path Processing Logic" v1.07.
+ [Steve Henson]
+
+ *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
+ remained unused and not that useful. A variety of other little bignum
+ tweaks and fixes have also been made continuing on from the audit (see
+ below).
+ [Geoff Thorpe]
+
+ *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
+ associated ASN1, EVP and SSL functions and old ASN1 macros.
+ [Richard Levitte]
+
+ *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
+ and this should never fail. So the return value from the use of
+ BN_set_word() (which can fail due to needless expansion) is now deprecated;
+ if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
+ [Geoff Thorpe]
+
+ *) BN_CTX_get() should return zero-valued bignums, providing the same
+ initialised value as BN_new().
+ [Geoff Thorpe, suggested by Ulf Möller]
+
+ *) Support for inhibitAnyPolicy certificate extension.
+ [Steve Henson]
+
+ *) An audit of the BIGNUM code is underway, for which debugging code is
+ enabled when BN_DEBUG is defined. This makes stricter enforcements on what
+ is considered valid when processing BIGNUMs, and causes execution to
+ assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
+ further steps are taken to deliberately pollute unused data in BIGNUM
+ structures to try and expose faulty code further on. For now, openssl will
+ (in its default mode of operation) continue to tolerate the inconsistent
+ forms that it has tolerated in the past, but authors and packagers should
+ consider trying openssl and their own applications when compiled with
+ these debugging symbols defined. It will help highlight potential bugs in
+ their own code, and will improve the test coverage for OpenSSL itself. At
+ some point, these tighter rules will become openssl's default to improve
+ maintainability, though the assert()s and other overheads will remain only
+ in debugging configurations. See bn.h for more details.
+ [Geoff Thorpe, Nils Larsch, Ulf Möller]
+
+ *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
+ that can only be obtained through BN_CTX_new() (which implicitly
+ initialises it). The presence of this function only made it possible
+ to overwrite an existing structure (and cause memory leaks).
+ [Geoff Thorpe]
+
+ *) Because of the callback-based approach for implementing LHASH as a
+ template type, lh_insert() adds opaque objects to hash-tables and
+ lh_doall() or lh_doall_arg() are typically used with a destructor callback
+ to clean up those corresponding objects before destroying the hash table
+ (and losing the object pointers). So some over-zealous constifications in
+ LHASH have been relaxed so that lh_insert() does not take (nor store) the
+ objects as "const" and the lh_doall[_arg] callback wrappers are not
+ prototyped to have "const" restrictions on the object pointers they are
+ given (and so aren't required to cast them away any more).
+ [Geoff Thorpe]
+
+ *) The tmdiff.h API was so ugly and minimal that our own timing utility
+ (speed) prefers to use its own implementation. The two implementations
+ haven't been consolidated as yet (volunteers?) but the tmdiff API has had
+ its object type properly exposed (MS_TM) instead of casting to/from "char
+ *". This may still change yet if someone realises MS_TM and "ms_time_***"
+ aren't necessarily the greatest nomenclatures - but this is what was used
+ internally to the implementation so I've used that for now.
+ [Geoff Thorpe]
+
+ *) Ensure that deprecated functions do not get compiled when
+ OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
+ the self-tests were still using deprecated key-generation functions so
+ these have been updated also.
+ [Geoff Thorpe]
+
+ *) Reorganise PKCS#7 code to separate the digest location functionality
+ into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
+ New function PKCS7_set_digest() to set the digest type for PKCS#7
+ digestedData type. Add additional code to correctly generate the
+ digestedData type and add support for this type in PKCS7 initialization
+ functions.
+ [Steve Henson]
+
+ *) New function PKCS7_set0_type_other() this initializes a PKCS7
+ structure of type "other".
+ [Steve Henson]
+
+ *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
+ sure the loop does correctly stop and breaking ("division by zero")
+ modulus operations are not performed. The (pre-generated) prime
+ table crypto/bn/bn_prime.h was already correct, but it could not be
+ re-generated on some platforms because of the "division by zero"
+ situation in the script.
+ [Ralf S. Engelschall]
+
+ *) Update support for ECC-based TLS ciphersuites according to
+ draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
+ SHA-1 now is only used for "small" curves (where the
+ representation of a field element takes up to 24 bytes); for
+ larger curves, the field element resulting from ECDH is directly
+ used as premaster secret.
+ [Douglas Stebila (Sun Microsystems Laboratories)]
+
+ *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
+ curve secp160r1 to the tests.
+ [Douglas Stebila (Sun Microsystems Laboratories)]
+
+ *) Add the possibility to load symbols globally with DSO.
+ [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
+
+ *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
+ control of the error stack.
+ [Richard Levitte]
+
+ *) Add support for STORE in ENGINE.
+ [Richard Levitte]
+
+ *) Add the STORE type. The intention is to provide a common interface
+ to certificate and key stores, be they simple file-based stores, or
+ HSM-type store, or LDAP stores, or...
+ NOTE: The code is currently UNTESTED and isn't really used anywhere.
+ [Richard Levitte]
+
+ *) Add a generic structure called OPENSSL_ITEM. This can be used to
+ pass a list of arguments to any function as well as provide a way
+ for a function to pass data back to the caller.
+ [Richard Levitte]
+
+ *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
+ works like BUF_strdup() but can be used to duplicate a portion of
+ a string. The copy gets NUL-terminated. BUF_memdup() duplicates
+ a memory area.
+ [Richard Levitte]
+
+ *) Add the function sk_find_ex() which works like sk_find(), but will
+ return an index to an element even if an exact match couldn't be
+ found. The index is guaranteed to point at the element where the
+ searched-for key would be inserted to preserve sorting order.
+ [Richard Levitte]
+
+ *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
+ takes an extra flags argument for optional functionality. Currently,
+ the following flags are defined:
+
+ OBJ_BSEARCH_VALUE_ON_NOMATCH
+ This one gets OBJ_bsearch_ex() to return a pointer to the first
+ element where the comparing function returns a negative or zero
+ number.
+
+ OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
+ This one gets OBJ_bsearch_ex() to return a pointer to the first
+ element where the comparing function returns zero. This is useful
+ if there are more than one element where the comparing function
+ returns zero.
+ [Richard Levitte]
+
+ *) Make it possible to create self-signed certificates with 'openssl ca'
+ in such a way that the self-signed certificate becomes part of the
+ CA database and uses the same mechanisms for serial number generation
+ as all other certificate signing. The new flag '-selfsign' enables
+ this functionality. Adapt CA.sh and CA.pl.in.
+ [Richard Levitte]
+
+ *) Add functionality to check the public key of a certificate request
+ against a given private. This is useful to check that a certificate
+ request can be signed by that key (self-signing).
+ [Richard Levitte]
+
+ *) Make it possible to have multiple active certificates with the same
+ subject in the CA index file. This is done only if the keyword
+ 'unique_subject' is set to 'no' in the main CA section (default
+ if 'CA_default') of the configuration file. The value is saved
+ with the database itself in a separate index attribute file,
+ named like the index file with '.attr' appended to the name.
+ [Richard Levitte]
+
+ *) Generate muti valued AVAs using '+' notation in config files for
+ req and dirName.
+ [Steve Henson]
+
+ *) Support for nameConstraints certificate extension.
+ [Steve Henson]
+
+ *) Support for policyConstraints certificate extension.
+ [Steve Henson]
+
+ *) Support for policyMappings certificate extension.
+ [Steve Henson]
+
+ *) Make sure the default DSA_METHOD implementation only uses its
+ dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
+ and change its own handlers to be NULL so as to remove unnecessary
+ indirection. This lets alternative implementations fallback to the
+ default implementation more easily.
+ [Geoff Thorpe]
+
+ *) Support for directoryName in GeneralName related extensions
+ in config files.
+ [Steve Henson]
+
+ *) Make it possible to link applications using Makefile.shared.
+ Make that possible even when linking against static libraries!
+ [Richard Levitte]
+
+ *) Support for single pass processing for S/MIME signing. This now
+ means that S/MIME signing can be done from a pipe, in addition
+ cleartext signing (multipart/signed type) is effectively streaming
+ and the signed data does not need to be all held in memory.
+
+ This is done with a new flag PKCS7_STREAM. When this flag is set
+ PKCS7_sign() only initializes the PKCS7 structure and the actual signing
+ is done after the data is output (and digests calculated) in
+ SMIME_write_PKCS7().
+ [Steve Henson]
+
+ *) Add full support for -rpath/-R, both in shared libraries and
+ applications, at least on the platforms where it's known how
+ to do it.
+ [Richard Levitte]
+
+ *) In crypto/ec/ec_mult.c, implement fast point multiplication with
+ precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
+ will now compute a table of multiples of the generator that
+ makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
+ faster (notably in the case of a single point multiplication,
+ scalar * generator).
+ [Nils Larsch, Bodo Moeller]
+
+ *) IPv6 support for certificate extensions. The various extensions
+ which use the IP:a.b.c.d can now take IPv6 addresses using the
+ formats of RFC1884 2.2 . IPv6 addresses are now also displayed
+ correctly.
+ [Steve Henson]
+
+ *) Added an ENGINE that implements RSA by performing private key
+ exponentiations with the GMP library. The conversions to and from
+ GMP's mpz_t format aren't optimised nor are any montgomery forms
+ cached, and on x86 it appears OpenSSL's own performance has caught up.
+ However there are likely to be other architectures where GMP could
+ provide a boost. This ENGINE is not built in by default, but it can be
+ specified at Configure time and should be accompanied by the necessary
+ linker additions, eg;
+ ./config -DOPENSSL_USE_GMP -lgmp
+ [Geoff Thorpe]
+
+ *) "openssl engine" will not display ENGINE/DSO load failure errors when
+ testing availability of engines with "-t" - the old behaviour is
+ produced by increasing the feature's verbosity with "-tt".
+ [Geoff Thorpe]
+
+ *) ECDSA routines: under certain error conditions uninitialized BN objects
+ could be freed. Solution: make sure initialization is performed early
+ enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
+ via PR#459)
+ [Lutz Jaenicke]
+
+ *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
+ and DH_METHOD (eg. by ENGINE implementations) to override the normal
+ software implementations. For DSA and DH, parameter generation can
+ also be overriden by providing the appropriate method callbacks.
+ [Geoff Thorpe]
+
+ *) Change the "progress" mechanism used in key-generation and
+ primality testing to functions that take a new BN_GENCB pointer in
+ place of callback/argument pairs. The new API functions have "_ex"
+ postfixes and the older functions are reimplemented as wrappers for
+ the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
+ declarations of the old functions to help (graceful) attempts to
+ migrate to the new functions. Also, the new key-generation API
+ functions operate on a caller-supplied key-structure and return
+ success/failure rather than returning a key or NULL - this is to
+ help make "keygen" another member function of RSA_METHOD etc.
+
+ Example for using the new callback interface:
+
+ int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
+ void *my_arg = ...;
+ BN_GENCB my_cb;
+
+ BN_GENCB_set(&my_cb, my_callback, my_arg);
+
+ return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
+ /* For the meaning of a, b in calls to my_callback(), see the
+ * documentation of the function that calls the callback.
+ * cb will point to my_cb; my_arg can be retrieved as cb->arg.
+ * my_callback should return 1 if it wants BN_is_prime_ex()
+ * to continue, or 0 to stop.
+ */
+
+ [Geoff Thorpe]
+
+ *) Change the ZLIB compression method to be stateful, and make it
+ available to TLS with the number defined in
+ draft-ietf-tls-compression-04.txt.
+ [Richard Levitte]
+
+ *) Add the ASN.1 structures and functions for CertificatePair, which
+ is defined as follows (according to X.509_4thEditionDraftV6.pdf):
+
+ CertificatePair ::= SEQUENCE {
+ forward [0] Certificate OPTIONAL,
+ reverse [1] Certificate OPTIONAL,
+ -- at least one of the pair shall be present -- }
+
+ Also implement the PEM functions to read and write certificate
+ pairs, and defined the PEM tag as "CERTIFICATE PAIR".
+
+ This needed to be defined, mostly for the sake of the LDAP
+ attribute crossCertificatePair, but may prove useful elsewhere as
+ well.
+ [Richard Levitte]
+
+ *) Make it possible to inhibit symlinking of shared libraries in
+ Makefile.shared, for Cygwin's sake.
+ [Richard Levitte]
+
+ *) Extend the BIGNUM API by creating a function
+ void BN_set_negative(BIGNUM *a, int neg);
+ and a macro that behave like
+ int BN_is_negative(const BIGNUM *a);
+
+ to avoid the need to access 'a->neg' directly in applications.
+ [Nils Larsch]
+
+ *) Implement fast modular reduction for pseudo-Mersenne primes
+ used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
+ EC_GROUP_new_curve_GFp() will now automatically use this
+ if applicable.
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Add new lock type (CRYPTO_LOCK_BN).
+ [Bodo Moeller]
+
+ *) Change the ENGINE framework to automatically load engines
+ dynamically from specific directories unless they could be
+ found to already be built in or loaded. Move all the
+ current engines except for the cryptodev one to a new
+ directory engines/.
+ The engines in engines/ are built as shared libraries if
+ the "shared" options was given to ./Configure or ./config.
+ Otherwise, they are inserted in libcrypto.a.
+ /usr/local/ssl/engines is the default directory for dynamic
+ engines, but that can be overriden at configure time through
+ the usual use of --prefix and/or --openssldir, and at run
+ time with the environment variable OPENSSL_ENGINES.
+ [Geoff Thorpe and Richard Levitte]
+
+ *) Add Makefile.shared, a helper makefile to build shared
+ libraries. Addapt Makefile.org.
+ [Richard Levitte]
+
+ *) Add version info to Win32 DLLs.
+ [Peter 'Luna' Runestig" <peter@runestig.com>]
+
+ *) Add new 'medium level' PKCS#12 API. Certificates and keys
+ can be added using this API to created arbitrary PKCS#12
+ files while avoiding the low level API.
+
+ New options to PKCS12_create(), key or cert can be NULL and
+ will then be omitted from the output file. The encryption
+ algorithm NIDs can be set to -1 for no encryption, the mac
+ iteration count can be set to 0 to omit the mac.
+
+ Enhance pkcs12 utility by making the -nokeys and -nocerts
+ options work when creating a PKCS#12 file. New option -nomac
+ to omit the mac, NONE can be set for an encryption algorithm.
+ New code is modified to use the enhanced PKCS12_create()
+ instead of the low level API.
+ [Steve Henson]
+
+ *) Extend ASN1 encoder to support indefinite length constructed
+ encoding. This can output sequences tags and octet strings in
+ this form. Modify pk7_asn1.c to support indefinite length
+ encoding. This is experimental and needs additional code to
+ be useful, such as an ASN1 bio and some enhanced streaming
+ PKCS#7 code.
+
+ Extend template encode functionality so that tagging is passed
+ down to the template encoder.
+ [Steve Henson]
+
+ *) Let 'openssl req' fail if an argument to '-newkey' is not
+ recognized instead of using RSA as a default.
+ [Bodo Moeller]
+
+ *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
+ As these are not official, they are not included in "ALL";
+ the "ECCdraft" ciphersuite group alias can be used to select them.
+ [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
+
+ *) Add ECDH engine support.
+ [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
+
+ *) Add ECDH in new directory crypto/ecdh/.
+ [Douglas Stebila (Sun Microsystems Laboratories)]
+
+ *) Let BN_rand_range() abort with an error after 100 iterations
+ without success (which indicates a broken PRNG).
+ [Bodo Moeller]
+
+ *) Change BN_mod_sqrt() so that it verifies that the input value
+ is really the square of the return value. (Previously,
+ BN_mod_sqrt would show GIGO behaviour.)
+ [Bodo Moeller]
+
+ *) Add named elliptic curves over binary fields from X9.62, SECG,
+ and WAP/WTLS; add OIDs that were still missing.
+
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
+
+ *) Extend the EC library for elliptic curves over binary fields
+ (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
+ New EC_METHOD:
+
+ EC_GF2m_simple_method
+
+ New API functions:
+
+ EC_GROUP_new_curve_GF2m
+ EC_GROUP_set_curve_GF2m
+ EC_GROUP_get_curve_GF2m
+ EC_POINT_set_affine_coordinates_GF2m
+ EC_POINT_get_affine_coordinates_GF2m
+ EC_POINT_set_compressed_coordinates_GF2m
+
+ Point compression for binary fields is disabled by default for
+ patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
+ enable it).
+
+ As binary polynomials are represented as BIGNUMs, various members
+ of the EC_GROUP and EC_POINT data structures can be shared
+ between the implementations for prime fields and binary fields;
+ the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
+ are essentially identical to their ..._GFp counterparts.
+ (For simplicity, the '..._GFp' prefix has been dropped from
+ various internal method names.)
+
+ An internal 'field_div' method (similar to 'field_mul' and
+ 'field_sqr') has been added; this is used only for binary fields.
+
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
+
+ *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
+ through methods ('mul', 'precompute_mult').
+
+ The generic implementations (now internally called 'ec_wNAF_mul'
+ and 'ec_wNAF_precomputed_mult') remain the default if these
+ methods are undefined.
+
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
+
+ *) New function EC_GROUP_get_degree, which is defined through
+ EC_METHOD. For curves over prime fields, this returns the bit
+ length of the modulus.
+
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
+
+ *) New functions EC_GROUP_dup, EC_POINT_dup.
+ (These simply call ..._new and ..._copy).
+
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
+
+ *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
+ Polynomials are represented as BIGNUMs (where the sign bit is not
+ used) in the following functions [macros]:
+
+ BN_GF2m_add
+ BN_GF2m_sub [= BN_GF2m_add]
+ BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
+ BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
+ BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
+ BN_GF2m_mod_inv
+ BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
+ BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
+ BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
+ BN_GF2m_cmp [= BN_ucmp]
+
+ (Note that only the 'mod' functions are actually for fields GF(2^m).
+ BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
+
+ For some functions, an the irreducible polynomial defining a
+ field can be given as an 'unsigned int[]' with strictly
+ decreasing elements giving the indices of those bits that are set;
+ i.e., p[] represents the polynomial
+ f(t) = t^p[0] + t^p[1] + ... + t^p[k]
+ where
+ p[0] > p[1] > ... > p[k] = 0.
+ This applies to the following functions:
+
+ BN_GF2m_mod_arr
+ BN_GF2m_mod_mul_arr
+ BN_GF2m_mod_sqr_arr
+ BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
+ BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
+ BN_GF2m_mod_exp_arr
+ BN_GF2m_mod_sqrt_arr
+ BN_GF2m_mod_solve_quad_arr
+ BN_GF2m_poly2arr
+ BN_GF2m_arr2poly
+
+ Conversion can be performed by the following functions:
+
+ BN_GF2m_poly2arr
+ BN_GF2m_arr2poly
+
+ bntest.c has additional tests for binary polynomial arithmetic.
+
+ Two implementations for BN_GF2m_mod_div() are available.
+ The default algorithm simply uses BN_GF2m_mod_inv() and
+ BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
+ if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
+ copyright notice in crypto/bn/bn_gf2m.c before enabling it).
+
+ [Sheueling Chang Shantz and Douglas Stebila
+ (Sun Microsystems Laboratories)]
+
+ *) Add new error code 'ERR_R_DISABLED' that can be used when some
+ functionality is disabled at compile-time.
+ [Douglas Stebila <douglas.stebila@sun.com>]
+
+ *) Change default behaviour of 'openssl asn1parse' so that more
+ information is visible when viewing, e.g., a certificate:
+
+ Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
+ mode the content of non-printable OCTET STRINGs is output in a
+ style similar to INTEGERs, but with '[HEX DUMP]' prepended to
+ avoid the appearance of a printable string.
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
+ functions
+ EC_GROUP_set_asn1_flag()
+ EC_GROUP_get_asn1_flag()
+ EC_GROUP_set_point_conversion_form()
+ EC_GROUP_get_point_conversion_form()
+ These control ASN1 encoding details:
+ - Curves (i.e., groups) are encoded explicitly unless asn1_flag
+ has been set to OPENSSL_EC_NAMED_CURVE.
+ - Points are encoded in uncompressed form by default; options for
+ asn1_for are as for point2oct, namely
+ POINT_CONVERSION_COMPRESSED
+ POINT_CONVERSION_UNCOMPRESSED
+ POINT_CONVERSION_HYBRID
+
+ Also add 'seed' and 'seed_len' members to EC_GROUP with access
+ functions
+ EC_GROUP_set_seed()
+ EC_GROUP_get0_seed()
+ EC_GROUP_get_seed_len()
+ This is used only for ASN1 purposes (so far).
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Add 'field_type' member to EC_METHOD, which holds the NID
+ of the appropriate field type OID. The new function
+ EC_METHOD_get_field_type() returns this value.
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Add functions
+ EC_POINT_point2bn()
+ EC_POINT_bn2point()
+ EC_POINT_point2hex()
+ EC_POINT_hex2point()
+ providing useful interfaces to EC_POINT_point2oct() and
+ EC_POINT_oct2point().
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Change internals of the EC library so that the functions
+ EC_GROUP_set_generator()
+ EC_GROUP_get_generator()
+ EC_GROUP_get_order()
+ EC_GROUP_get_cofactor()
+ are implemented directly in crypto/ec/ec_lib.c and not dispatched
+ to methods, which would lead to unnecessary code duplication when
+ adding different types of curves.
+ [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
+
+ *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
+ arithmetic, and such that modified wNAFs are generated
+ (which avoid length expansion in many cases).
+ [Bodo Moeller]
+
+ *) Add a function EC_GROUP_check_discriminant() (defined via
+ EC_METHOD) that verifies that the curve discriminant is non-zero.
+
+ Add a function EC_GROUP_check() that makes some sanity tests
+ on a EC_GROUP, its generator and order. This includes
+ EC_GROUP_check_discriminant().
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Add ECDSA in new directory crypto/ecdsa/.
+
+ Add applications 'openssl ecparam' and 'openssl ecdsa'
+ (these are based on 'openssl dsaparam' and 'openssl dsa').
+
+ ECDSA support is also included in various other files across the
+ library. Most notably,
+ - 'openssl req' now has a '-newkey ecdsa:file' option;
+ - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
+ - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
+ d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
+ them suitable for ECDSA where domain parameters must be
+ extracted before the specific public key;
+ - ECDSA engine support has been added.
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Include some named elliptic curves, and add OIDs from X9.62,
+ SECG, and WAP/WTLS. Each curve can be obtained from the new
+ function
+ EC_GROUP_new_by_curve_name(),
+ and the list of available named curves can be obtained with
+ EC_get_builtin_curves().
+ Also add a 'curve_name' member to EC_GROUP objects, which can be
+ accessed via
+ EC_GROUP_set_curve_name()
+ EC_GROUP_get_curve_name()
+ [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
+
+ *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
+ was actually never needed) and in BN_mul(). The removal in BN_mul()
+ required a small change in bn_mul_part_recursive() and the addition
+ of the functions bn_cmp_part_words(), bn_sub_part_words() and
+ bn_add_part_words(), which do the same thing as bn_cmp_words(),
+ bn_sub_words() and bn_add_words() except they take arrays with
+ differing sizes.
+ [Richard Levitte]
+
+ Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
+
+ *) Cleanse PEM buffers before freeing them since they may contain
+ sensitive data.
+ [Benjamin Bennett <ben@psc.edu>]
+
+ *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
+ a ciphersuite string such as "DEFAULT:RSA" cannot enable
+ authentication-only ciphersuites.
+ [Bodo Moeller]
+
+ *) Since AES128 and AES256 share a single mask bit in the logic of
+ ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
+ kludge to work properly if AES128 is available and AES256 isn't.
+ [Victor Duchovni]
+
+ *) Expand security boundary to match 1.1.1 module.
+ [Steve Henson]
+
+ *) Remove redundant features: hash file source, editing of test vectors
+ modify fipsld to use external fips_premain.c signature.
+ [Steve Henson]
+
+ *) New perl script mkfipsscr.pl to create shell scripts or batch files to
+ run algorithm test programs.
+ [Steve Henson]
+
+ *) Make algorithm test programs more tolerant of whitespace.
+ [Steve Henson]
+
+ *) Have SSL/TLS server implementation tolerate "mismatched" record
+ protocol version while receiving ClientHello even if the
+ ClientHello is fragmented. (The server can't insist on the
+ particular protocol version it has chosen before the ServerHello
+ message has informed the client about his choice.)
+ [Bodo Moeller]
+
+ *) Load error codes if they are not already present instead of using a
+ static variable. This allows them to be cleanly unloaded and reloaded.
+ [Steve Henson]
+
+ Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
+
+ *) Introduce limits to prevent malicious keys being able to
+ cause a denial of service. (CVE-2006-2940)
+ [Steve Henson, Bodo Moeller]
+
+ *) Fix ASN.1 parsing of certain invalid structures that can result
+ in a denial of service. (CVE-2006-2937) [Steve Henson]
+
+ *) Fix buffer overflow in SSL_get_shared_ciphers() function.
+ (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
+
+ *) Fix SSL client code which could crash if connecting to a
+ malicious SSLv2 server. (CVE-2006-4343)
+ [Tavis Ormandy and Will Drewry, Google Security Team]
+
+ *) Change ciphersuite string processing so that an explicit
+ ciphersuite selects this one ciphersuite (so that "AES256-SHA"
+ will no longer include "AES128-SHA"), and any other similar
+ ciphersuite (same bitmap) from *other* protocol versions (so that
+ "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
+ SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
+ changes from 0.9.8b and 0.9.8d.
+ [Bodo Moeller]
+
+ Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
+
+ *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
+ (CVE-2006-4339) [Ben Laurie and Google Security Team]
+
+ *) Change the Unix randomness entropy gathering to use poll() when
+ possible instead of select(), since the latter has some
+ undesirable limitations.
+ [Darryl Miles via Richard Levitte and Bodo Moeller]
+
+ *) Disable rogue ciphersuites:
+
+ - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
+ - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
+ - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
+
+ The latter two were purportedly from
+ draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
+ appear there.
+
+ Also deactive the remaining ciphersuites from
+ draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
+ unofficial, and the ID has long expired.
+ [Bodo Moeller]
+
+ *) Fix RSA blinding Heisenbug (problems sometimes occured on
+ dual-core machines) and other potential thread-safety issues.
+ [Bodo Moeller]
+
+ Changes between 0.9.7i and 0.9.7j [04 May 2006]
+
+ *) Adapt fipsld and the build system to link against the validated FIPS
+ module in FIPS mode.
+ [Steve Henson]
+
+ *) Fixes for VC++ 2005 build under Windows.
+ [Steve Henson]
+
+ *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
+ from a Windows bash shell such as MSYS. It is autodetected from the
+ "config" script when run from a VC++ environment. Modify standard VC++
+ build to use fipscanister.o from the GNU make build.
+ [Steve Henson]
+
+ Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
+
+ *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
+ The value now differs depending on if you build for FIPS or not.
+ BEWARE! A program linked with a shared FIPSed libcrypto can't be
+ safely run with a non-FIPSed libcrypto, as it may crash because of
+ the difference induced by this change.
+ [Andy Polyakov]
+
+ Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
+
+ *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
+ (part of SSL_OP_ALL). This option used to disable the
+ countermeasure against man-in-the-middle protocol-version
+ rollback in the SSL 2.0 server implementation, which is a bad
+ idea. (CVE-2005-2969)
+
+ [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
+ for Information Security, National Institute of Advanced Industrial
+ Science and Technology [AIST], Japan)]
+
+ *) Minimal support for X9.31 signatures and PSS padding modes. This is
+ mainly for FIPS compliance and not fully integrated at this stage.
+ [Steve Henson]
+
+ *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
+ the exponentiation using a fixed-length exponent. (Otherwise,
+ the information leaked through timing could expose the secret key
+ after many signatures; cf. Bleichenbacher's attack on DSA with
+ biased k.)
+ [Bodo Moeller]
+
+ *) Make a new fixed-window mod_exp implementation the default for
+ RSA, DSA, and DH private-key operations so that the sequence of
+ squares and multiplies and the memory access pattern are
+ independent of the particular secret key. This will mitigate
+ cache-timing and potential related attacks.
+
+ BN_mod_exp_mont_consttime() is the new exponentiation implementation,
+ and this is automatically used by BN_mod_exp_mont() if the new flag
+ BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
+ will use this BN flag for private exponents unless the flag
+ RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
+ DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
+
+ [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
+
+ *) Change the client implementation for SSLv23_method() and
+ SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
+ Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
+ (Previously, the SSL 2.0 backwards compatible Client Hello
+ message format would be used even with SSL_OP_NO_SSLv2.)
+ [Bodo Moeller]
+
+ *) Add support for smime-type MIME parameter in S/MIME messages which some
+ clients need.
+ [Steve Henson]
+
+ *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
+ a threadsafe manner. Modify rsa code to use new function and add calls
+ to dsa and dh code (which had race conditions before).
+ [Steve Henson]
+
+ *) Include the fixed error library code in the C error file definitions
+ instead of fixing them up at runtime. This keeps the error code
+ structures constant.
+ [Steve Henson]
+
+ Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
+
+ [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
+ OpenSSL 0.9.8.]
+
+ *) Fixes for newer kerberos headers. NB: the casts are needed because
+ the 'length' field is signed on one version and unsigned on another
+ with no (?) obvious way to tell the difference, without these VC++
+ complains. Also the "definition" of FAR (blank) is no longer included
+ nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
+ some needed definitions.
+ [Steve Henson]
+
+ *) Undo Cygwin change.
+ [Ulf Möller]
+
+ *) Added support for proxy certificates according to RFC 3820.
+ Because they may be a security thread to unaware applications,
+ they must be explicitely allowed in run-time. See
+ docs/HOWTO/proxy_certificates.txt for further information.
+ [Richard Levitte]
+
+ Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
+
+ *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
+ server and client random values. Previously
+ (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
+ less random data when sizeof(time_t) > 4 (some 64 bit platforms).
+
+ This change has negligible security impact because:
+
+ 1. Server and client random values still have 24 bytes of pseudo random
+ data.
+
+ 2. Server and client random values are sent in the clear in the initial
+ handshake.
+
+ 3. The master secret is derived using the premaster secret (48 bytes in
+ size for static RSA ciphersuites) as well as client server and random
+ values.
+
+ The OpenSSL team would like to thank the UK NISCC for bringing this issue
+ to our attention.
+
+ [Stephen Henson, reported by UK NISCC]
+
+ *) Use Windows randomness collection on Cygwin.
+ [Ulf Möller]
+
+ *) Fix hang in EGD/PRNGD query when communication socket is closed
+ prematurely by EGD/PRNGD.
+ [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
+
+ *) Prompt for pass phrases when appropriate for PKCS12 input format.
+ [Steve Henson]
+
+ *) Back-port of selected performance improvements from development
+ branch, as well as improved support for PowerPC platforms.
+ [Andy Polyakov]
+
+ *) Add lots of checks for memory allocation failure, error codes to indicate
+ failure and freeing up memory if a failure occurs.
+ [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
+
+ *) Add new -passin argument to dgst.
+ [Steve Henson]
+
+ *) Perform some character comparisons of different types in X509_NAME_cmp:
+ this is needed for some certificates that reencode DNs into UTF8Strings
+ (in violation of RFC3280) and can't or wont issue name rollover
+ certificates.
+ [Steve Henson]
+
+ *) Make an explicit check during certificate validation to see that
+ the CA setting in each certificate on the chain is correct. As a
+ side effect always do the following basic checks on extensions,
+ not just when there's an associated purpose to the check:
+
+ - if there is an unhandled critical extension (unless the user
+ has chosen to ignore this fault)
+ - if the path length has been exceeded (if one is set at all)
+ - that certain extensions fit the associated purpose (if one has
+ been given)
+ [Richard Levitte]
+
+ Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
+
+ *) Avoid a race condition when CRLs are checked in a multi threaded
+ environment. This would happen due to the reordering of the revoked
+ entries during signature checking and serial number lookup. Now the
+ encoding is cached and the serial number sort performed under a lock.
+ Add new STACK function sk_is_sorted().
+ [Steve Henson]
+
+ *) Add Delta CRL to the extension code.
+ [Steve Henson]
+
+ *) Various fixes to s3_pkt.c so alerts are sent properly.
+ [David Holmes <d.holmes@f5.com>]
+
+ *) Reduce the chances of duplicate issuer name and serial numbers (in
+ violation of RFC3280) using the OpenSSL certificate creation utilities.
+ This is done by creating a random 64 bit value for the initial serial
+ number when a serial number file is created or when a self signed
+ certificate is created using 'openssl req -x509'. The initial serial
+ number file is created using 'openssl x509 -next_serial' in CA.pl
+ rather than being initialized to 1.
+ [Steve Henson]
+
+ Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
+
+ *) Fix null-pointer assignment in do_change_cipher_spec() revealed
+ by using the Codenomicon TLS Test Tool (CVE-2004-0079)
+ [Joe Orton, Steve Henson]
+
+ *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
+ (CVE-2004-0112)
+ [Joe Orton, Steve Henson]
+
+ *) Make it possible to have multiple active certificates with the same
+ subject in the CA index file. This is done only if the keyword
+ 'unique_subject' is set to 'no' in the main CA section (default
+ if 'CA_default') of the configuration file. The value is saved
+ with the database itself in a separate index attribute file,
+ named like the index file with '.attr' appended to the name.
+ [Richard Levitte]
+
+ *) X509 verify fixes. Disable broken certificate workarounds when
+ X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
+ keyUsage extension present. Don't accept CRLs with unhandled critical
+ extensions: since verify currently doesn't process CRL extensions this
+ rejects a CRL with *any* critical extensions. Add new verify error codes
+ for these cases.
+ [Steve Henson]
+
+ *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
+ A clarification of RFC2560 will require the use of OCTET STRINGs and
+ some implementations cannot handle the current raw format. Since OpenSSL
+ copies and compares OCSP nonces as opaque blobs without any attempt at
+ parsing them this should not create any compatibility issues.
+ [Steve Henson]
+
+ *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
+ calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
+ this HMAC (and other) operations are several times slower than OpenSSL
+ < 0.9.7.
+ [Steve Henson]
+
+ *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
+ [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
+
+ *) Use the correct content when signing type "other".
+ [Steve Henson]
+
+ Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
+
+ *) Fix various bugs revealed by running the NISCC test suite:
+
+ Stop out of bounds reads in the ASN1 code when presented with
+ invalid tags (CVE-2003-0543 and CVE-2003-0544).
+
+ Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
+
+ If verify callback ignores invalid public key errors don't try to check
+ certificate signature with the NULL public key.
+
+ [Steve Henson]
+
+ *) New -ignore_err option in ocsp application to stop the server
+ exiting on the first error in a request.
+ [Steve Henson]
+
+ *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
+ if the server requested one: as stated in TLS 1.0 and SSL 3.0
+ specifications.
+ [Steve Henson]
+
+ *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
+ extra data after the compression methods not only for TLS 1.0
+ but also for SSL 3.0 (as required by the specification).
+ [Bodo Moeller; problem pointed out by Matthias Loepfe]
+
+ *) Change X509_certificate_type() to mark the key as exported/exportable
+ when it's 512 *bits* long, not 512 bytes.
+ [Richard Levitte]
+
+ *) Change AES_cbc_encrypt() so it outputs exact multiple of
+ blocks during encryption.
+ [Richard Levitte]
+
+ *) Various fixes to base64 BIO and non blocking I/O. On write
+ flushes were not handled properly if the BIO retried. On read
+ data was not being buffered properly and had various logic bugs.
+ This also affects blocking I/O when the data being decoded is a
+ certain size.
+ [Steve Henson]
+
+ *) Various S/MIME bugfixes and compatibility changes:
+ output correct application/pkcs7 MIME type if
+ PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
+ Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
+ of files as .eml work). Correctly handle very long lines in MIME
+ parser.
+ [Steve Henson]
+
+ Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
+
+ *) Countermeasure against the Klima-Pokorny-Rosa extension of
+ Bleichbacher's attack on PKCS #1 v1.5 padding: treat
+ a protocol version number mismatch like a decryption error
+ in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
+ [Bodo Moeller]
+
+ *) Turn on RSA blinding by default in the default implementation
+ to avoid a timing attack. Applications that don't want it can call
+ RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
+ They would be ill-advised to do so in most cases.
+ [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
+
+ *) Change RSA blinding code so that it works when the PRNG is not
+ seeded (in this case, the secret RSA exponent is abused as
+ an unpredictable seed -- if it is not unpredictable, there
+ is no point in blinding anyway). Make RSA blinding thread-safe
+ by remembering the creator's thread ID in rsa->blinding and
+ having all other threads use local one-time blinding factors
+ (this requires more computation than sharing rsa->blinding, but
+ avoids excessive locking; and if an RSA object is not shared
+ between threads, blinding will still be very fast).
+ [Bodo Moeller]
+
+ *) Fixed a typo bug that would cause ENGINE_set_default() to set an
+ ENGINE as defaults for all supported algorithms irrespective of
+ the 'flags' parameter. 'flags' is now honoured, so applications
+ should make sure they are passing it correctly.
+ [Geoff Thorpe]
+
+ *) Target "mingw" now allows native Windows code to be generated in
+ the Cygwin environment as well as with the MinGW compiler.
+ [Ulf Moeller]
+
+ Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
+
+ *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
+ via timing by performing a MAC computation even if incorrrect
+ block cipher padding has been found. This is a countermeasure
+ against active attacks where the attacker has to distinguish
+ between bad padding and a MAC verification error. (CVE-2003-0078)
+
+ [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
+ Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
+ Martin Vuagnoux (EPFL, Ilion)]
+
+ *) Make the no-err option work as intended. The intention with no-err
+ is not to have the whole error stack handling routines removed from
+ libcrypto, it's only intended to remove all the function name and
+ reason texts, thereby removing some of the footprint that may not
+ be interesting if those errors aren't displayed anyway.
+
+ NOTE: it's still possible for any application or module to have it's
+ own set of error texts inserted. The routines are there, just not
+ used by default when no-err is given.
+ [Richard Levitte]
+
+ *) Add support for FreeBSD on IA64.
+ [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
+
+ *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
+ Kerberos function mit_des_cbc_cksum(). Before this change,
+ the value returned by DES_cbc_cksum() was like the one from
+ mit_des_cbc_cksum(), except the bytes were swapped.
+ [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
+
+ *) Allow an application to disable the automatic SSL chain building.
+ Before this a rather primitive chain build was always performed in
+ ssl3_output_cert_chain(): an application had no way to send the
+ correct chain if the automatic operation produced an incorrect result.
+
+ Now the chain builder is disabled if either:
+
+ 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
+
+ 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
+
+ The reasoning behind this is that an application would not want the
+ auto chain building to take place if extra chain certificates are
+ present and it might also want a means of sending no additional
+ certificates (for example the chain has two certificates and the
+ root is omitted).
+ [Steve Henson]
+
+ *) Add the possibility to build without the ENGINE framework.
+ [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
+
+ *) Under Win32 gmtime() can return NULL: check return value in
+ OPENSSL_gmtime(). Add error code for case where gmtime() fails.
+ [Steve Henson]
+
+ *) DSA routines: under certain error conditions uninitialized BN objects
+ could be freed. Solution: make sure initialization is performed early
+ enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
+ Nils Larsch <nla@trustcenter.de> via PR#459)
+ [Lutz Jaenicke]
+
+ *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
+ checked on reconnect on the client side, therefore session resumption
+ could still fail with a "ssl session id is different" error. This
+ behaviour is masked when SSL_OP_ALL is used due to
+ SSL_OP_MICROSOFT_SESS_ID_BUG being set.
+ Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
+ followup to PR #377.
+ [Lutz Jaenicke]
+
+ *) IA-32 assembler support enhancements: unified ELF targets, support
+ for SCO/Caldera platforms, fix for Cygwin shared build.
+ [Andy Polyakov]
+
+ *) Add support for FreeBSD on sparc64. As a consequence, support for
+ FreeBSD on non-x86 processors is separate from x86 processors on
+ the config script, much like the NetBSD support.
+ [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
+
+ Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
+
+ [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
+ OpenSSL 0.9.7.]
+
+ *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
+ code (06) was taken as the first octet of the session ID and the last
+ octet was ignored consequently. As a result SSLv2 client side session
+ caching could not have worked due to the session ID mismatch between
+ client and server.
+ Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
+ PR #377.
+ [Lutz Jaenicke]
+
+ *) Change the declaration of needed Kerberos libraries to use EX_LIBS
+ instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
+ removed entirely.
+ [Richard Levitte]
+
+ *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
+ seems that in spite of existing for more than a year, many application
+ author have done nothing to provide the necessary callbacks, which
+ means that this particular engine will not work properly anywhere.
+ This is a very unfortunate situation which forces us, in the name
+ of usability, to give the hw_ncipher.c a static lock, which is part
+ of libcrypto.
+ NOTE: This is for the 0.9.7 series ONLY. This hack will never
+ appear in 0.9.8 or later. We EXPECT application authors to have
+ dealt properly with this when 0.9.8 is released (unless we actually
+ make such changes in the libcrypto locking code that changes will
+ have to be made anyway).
+ [Richard Levitte]
+
+ *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
+ octets have been read, EOF or an error occurs. Without this change
+ some truncated ASN1 structures will not produce an error.
+ [Steve Henson]
+
+ *) Disable Heimdal support, since it hasn't been fully implemented.
+ Still give the possibility to force the use of Heimdal, but with
+ warnings and a request that patches get sent to openssl-dev.
+ [Richard Levitte]
+
+ *) Add the VC-CE target, introduce the WINCE sysname, and add
+ INSTALL.WCE and appropriate conditionals to make it build.
+ [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
+
+ *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
+ cygssl-x.y.z.dll, where x, y and z are the major, minor and
+ edit numbers of the version.
+ [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
+
+ *) Introduce safe string copy and catenation functions
+ (BUF_strlcpy() and BUF_strlcat()).
+ [Ben Laurie (CHATS) and Richard Levitte]
+
+ *) Avoid using fixed-size buffers for one-line DNs.
+ [Ben Laurie (CHATS)]
+
+ *) Add BUF_MEM_grow_clean() to avoid information leakage when
+ resizing buffers containing secrets, and use where appropriate.
+ [Ben Laurie (CHATS)]
+
+ *) Avoid using fixed size buffers for configuration file location.
+ [Ben Laurie (CHATS)]
+
+ *) Avoid filename truncation for various CA files.
+ [Ben Laurie (CHATS)]
+
+ *) Use sizeof in preference to magic numbers.
+ [Ben Laurie (CHATS)]
+
+ *) Avoid filename truncation in cert requests.
+ [Ben Laurie (CHATS)]
+
+ *) Add assertions to check for (supposedly impossible) buffer
+ overflows.
+ [Ben Laurie (CHATS)]
+
+ *) Don't cache truncated DNS entries in the local cache (this could
+ potentially lead to a spoofing attack).
+ [Ben Laurie (CHATS)]
+
+ *) Fix various buffers to be large enough for hex/decimal
+ representations in a platform independent manner.
+ [Ben Laurie (CHATS)]
+
+ *) Add CRYPTO_realloc_clean() to avoid information leakage when
+ resizing buffers containing secrets, and use where appropriate.
+ [Ben Laurie (CHATS)]
+
+ *) Add BIO_indent() to avoid much slightly worrying code to do
+ indents.
+ [Ben Laurie (CHATS)]
+
+ *) Convert sprintf()/BIO_puts() to BIO_printf().
+ [Ben Laurie (CHATS)]
+
+ *) buffer_gets() could terminate with the buffer only half
+ full. Fixed.
+ [Ben Laurie (CHATS)]
+
+ *) Add assertions to prevent user-supplied crypto functions from
+ overflowing internal buffers by having large block sizes, etc.
+ [Ben Laurie (CHATS)]
+
+ *) New OPENSSL_assert() macro (similar to assert(), but enabled
+ unconditionally).
+ [Ben Laurie (CHATS)]
+
+ *) Eliminate unused copy of key in RC4.
+ [Ben Laurie (CHATS)]
+
+ *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
+ [Ben Laurie (CHATS)]
+
+ *) Fix off-by-one error in EGD path.
+ [Ben Laurie (CHATS)]
+
+ *) If RANDFILE path is too long, ignore instead of truncating.
+ [Ben Laurie (CHATS)]
+
+ *) Eliminate unused and incorrectly sized X.509 structure
+ CBCParameter.
+ [Ben Laurie (CHATS)]
+
+ *) Eliminate unused and dangerous function knumber().
+ [Ben Laurie (CHATS)]
+
+ *) Eliminate unused and dangerous structure, KSSL_ERR.
+ [Ben Laurie (CHATS)]
+
+ *) Protect against overlong session ID context length in an encoded
+ session object. Since these are local, this does not appear to be
+ exploitable.
+ [Ben Laurie (CHATS)]
+
+ *) Change from security patch (see 0.9.6e below) that did not affect
+ the 0.9.6 release series:
+
+ Remote buffer overflow in SSL3 protocol - an attacker could
+ supply an oversized master key in Kerberos-enabled versions.
+ (CVE-2002-0657)
+ [Ben Laurie (CHATS)]
+
+ *) Change the SSL kerb5 codes to match RFC 2712.
+ [Richard Levitte]
+
+ *) Make -nameopt work fully for req and add -reqopt switch.
+ [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
+
+ *) The "block size" for block ciphers in CFB and OFB mode should be 1.
+ [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
+
+ *) Make sure tests can be performed even if the corresponding algorithms
+ have been removed entirely. This was also the last step to make
+ OpenSSL compilable with DJGPP under all reasonable conditions.
+ [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
+
+ *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
+ to allow version independent disabling of normally unselected ciphers,
+ which may be activated as a side-effect of selecting a single cipher.
+
+ (E.g., cipher list string "RSA" enables ciphersuites that are left
+ out of "ALL" because they do not provide symmetric encryption.
+ "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
+ [Lutz Jaenicke, Bodo Moeller]
+
+ *) Add appropriate support for separate platform-dependent build
+ directories. The recommended way to make a platform-dependent
+ build directory is the following (tested on Linux), maybe with
+ some local tweaks:
+
+ # Place yourself outside of the OpenSSL source tree. In
+ # this example, the environment variable OPENSSL_SOURCE
+ # is assumed to contain the absolute OpenSSL source directory.
+ mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
+ cd objtree/"`uname -s`-`uname -r`-`uname -m`"
+ (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
+ mkdir -p `dirname $F`
+ ln -s $OPENSSL_SOURCE/$F $F
+ done
+
+ To be absolutely sure not to disturb the source tree, a "make clean"
+ is a good thing. If it isn't successfull, don't worry about it,
+ it probably means the source directory is very clean.
+ [Richard Levitte]
+
+ *) Make sure any ENGINE control commands make local copies of string
+ pointers passed to them whenever necessary. Otherwise it is possible
+ the caller may have overwritten (or deallocated) the original string
+ data when a later ENGINE operation tries to use the stored values.
+ [Götz Babin-Ebell <babinebell@trustcenter.de>]
+
+ *) Improve diagnostics in file reading and command-line digests.
+ [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
+
+ *) Add AES modes CFB and OFB to the object database. Correct an
+ error in AES-CFB decryption.
+ [Richard Levitte]
+
+ *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
+ allows existing EVP_CIPHER_CTX structures to be reused after
+ calling EVP_*Final(). This behaviour is used by encryption
+ BIOs and some applications. This has the side effect that
+ applications must explicitly clean up cipher contexts with
+ EVP_CIPHER_CTX_cleanup() or they will leak memory.
+ [Steve Henson]
+
+ *) Check the values of dna and dnb in bn_mul_recursive before calling
+ bn_mul_comba (a non zero value means the a or b arrays do not contain
+ n2 elements) and fallback to bn_mul_normal if either is not zero.
+ [Steve Henson]
+
+ *) Fix escaping of non-ASCII characters when using the -subj option
+ of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
+ [Lutz Jaenicke]
+
+ *) Make object definitions compliant to LDAP (RFC2256): SN is the short
+ form for "surname", serialNumber has no short form.
+ Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
+ therefore remove "mail" short name for "internet 7".
+ The OID for unique identifiers in X509 certificates is
+ x500UniqueIdentifier, not uniqueIdentifier.
+ Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
+ [Lutz Jaenicke]
+
+ *) Add an "init" command to the ENGINE config module and auto initialize
+ ENGINEs. Without any "init" command the ENGINE will be initialized
+ after all ctrl commands have been executed on it. If init=1 the
+ ENGINE is initailized at that point (ctrls before that point are run
+ on the uninitialized ENGINE and after on the initialized one). If
+ init=0 then the ENGINE will not be iniatialized at all.
+ [Steve Henson]
+
+ *) Fix the 'app_verify_callback' interface so that the user-defined
+ argument is actually passed to the callback: In the
+ SSL_CTX_set_cert_verify_callback() prototype, the callback
+ declaration has been changed from
+ int (*cb)()
+ into
+ int (*cb)(X509_STORE_CTX *,void *);
+ in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
+ i=s->ctx->app_verify_callback(&ctx)
+ has been changed into
+ i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
+
+ To update applications using SSL_CTX_set_cert_verify_callback(),
+ a dummy argument can be added to their callback functions.
+ [D. K. Smetters <smetters@parc.xerox.com>]
+
+ *) Added the '4758cca' ENGINE to support IBM 4758 cards.
+ [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
+
+ *) Add and OPENSSL_LOAD_CONF define which will cause
+ OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
+ This allows older applications to transparently support certain
+ OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
+ Two new functions OPENSSL_add_all_algorithms_noconf() which will never
+ load the config file and OPENSSL_add_all_algorithms_conf() which will
+ always load it have also been added.
+ [Steve Henson]
+
+ *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
+ Adjust NIDs and EVP layer.
+ [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
+
+ *) Config modules support in openssl utility.
+
+ Most commands now load modules from the config file,
+ though in a few (such as version) this isn't done
+ because it couldn't be used for anything.
+
+ In the case of ca and req the config file used is
+ the same as the utility itself: that is the -config
+ command line option can be used to specify an
+ alternative file.
+ [Steve Henson]
+
+ *) Move default behaviour from OPENSSL_config(). If appname is NULL
+ use "openssl_conf" if filename is NULL use default openssl config file.
+ [Steve Henson]
+
+ *) Add an argument to OPENSSL_config() to allow the use of an alternative
+ config section name. Add a new flag to tolerate a missing config file
+ and move code to CONF_modules_load_file().
+ [Steve Henson]
+
+ *) Support for crypto accelerator cards from Accelerated Encryption
+ Processing, www.aep.ie. (Use engine 'aep')
+ The support was copied from 0.9.6c [engine] and adapted/corrected
+ to work with the new engine framework.
+ [AEP Inc. and Richard Levitte]
+
+ *) Support for SureWare crypto accelerator cards from Baltimore
+ Technologies. (Use engine 'sureware')
+ The support was copied from 0.9.6c [engine] and adapted
+ to work with the new engine framework.
+ [Richard Levitte]
+
+ *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
+ make the newer ENGINE framework commands for the CHIL engine work.
+ [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
+
+ *) Make it possible to produce shared libraries on ReliantUNIX.
+ [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
+
+ *) Add the configuration target debug-linux-ppro.
+ Make 'openssl rsa' use the general key loading routines
+ implemented in apps.c, and make those routines able to
+ handle the key format FORMAT_NETSCAPE and the variant
+ FORMAT_IISSGC.
+ [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
+
+ *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
+ [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
+
+ *) Add -keyform to rsautl, and document -engine.
+ [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
+
+ *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
+ BIO_R_NO_SUCH_FILE error code rather than the generic
+ ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
+ [Ben Laurie]
+
+ *) Add new functions
+ ERR_peek_last_error
+ ERR_peek_last_error_line
+ ERR_peek_last_error_line_data.
+ These are similar to
+ ERR_peek_error
+ ERR_peek_error_line
+ ERR_peek_error_line_data,
+ but report on the latest error recorded rather than the first one
+ still in the error queue.
+ [Ben Laurie, Bodo Moeller]
+
+ *) default_algorithms option in ENGINE config module. This allows things
+ like:
+ default_algorithms = ALL
+ default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
+ [Steve Henson]
+
+ *) Prelminary ENGINE config module.
+ [Steve Henson]
+
+ *) New experimental application configuration code.
+ [Steve Henson]
+
+ *) Change the AES code to follow the same name structure as all other
+ symmetric ciphers, and behave the same way. Move everything to
+ the directory crypto/aes, thereby obsoleting crypto/rijndael.
+ [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
+
+ *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
+ [Ben Laurie and Theo de Raadt]
+
+ *) Add option to output public keys in req command.
+ [Massimiliano Pala madwolf@openca.org]
+
+ *) Use wNAFs in EC_POINTs_mul() for improved efficiency
+ (up to about 10% better than before for P-192 and P-224).
+ [Bodo Moeller]
+
+ *) New functions/macros
+
+ SSL_CTX_set_msg_callback(ctx, cb)
+ SSL_CTX_set_msg_callback_arg(ctx, arg)
+ SSL_set_msg_callback(ssl, cb)
+ SSL_set_msg_callback_arg(ssl, arg)
+
+ to request calling a callback function
+
+ void cb(int write_p, int version, int content_type,
+ const void *buf, size_t len, SSL *ssl, void *arg)
+
+ whenever a protocol message has been completely received
+ (write_p == 0) or sent (write_p == 1). Here 'version' is the
+ protocol version according to which the SSL library interprets
+ the current protocol message (SSL2_VERSION, SSL3_VERSION, or
+ TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
+ the content type as defined in the SSL 3.0/TLS 1.0 protocol
+ specification (change_cipher_spec(20), alert(21), handshake(22)).
+ 'buf' and 'len' point to the actual message, 'ssl' to the
+ SSL object, and 'arg' is the application-defined value set by
+ SSL[_CTX]_set_msg_callback_arg().
+
+ 'openssl s_client' and 'openssl s_server' have new '-msg' options
+ to enable a callback that displays all protocol messages.
+ [Bodo Moeller]
+
+ *) Change the shared library support so shared libraries are built as
+ soon as the corresponding static library is finished, and thereby get
+ openssl and the test programs linked against the shared library.
+ This still only happens when the keyword "shard" has been given to
+ the configuration scripts.
+
+ NOTE: shared library support is still an experimental thing, and
+ backward binary compatibility is still not guaranteed.
+ ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
+
+ *) Add support for Subject Information Access extension.
+ [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
+
+ *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
+ additional bytes when new memory had to be allocated, not just
+ when reusing an existing buffer.
+ [Bodo Moeller]
+
+ *) New command line and configuration option 'utf8' for the req command.
+ This allows field values to be specified as UTF8 strings.
+ [Steve Henson]
+
+ *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
+ runs for the former and machine-readable output for the latter.
+ [Ben Laurie]
+
+ *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
+ of the e-mail address in the DN (i.e., it will go into a certificate
+ extension only). The new configuration file option 'email_in_dn = no'
+ has the same effect.
+ [Massimiliano Pala madwolf@openca.org]
+
+ *) Change all functions with names starting with des_ to be starting
+ with DES_ instead. Add wrappers that are compatible with libdes,
+ but are named _ossl_old_des_*. Finally, add macros that map the
+ des_* symbols to the corresponding _ossl_old_des_* if libdes
+ compatibility is desired. If OpenSSL 0.9.6c compatibility is
+ desired, the des_* symbols will be mapped to DES_*, with one
+ exception.
+
+ Since we provide two compatibility mappings, the user needs to
+ define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
+ compatibility is desired. The default (i.e., when that macro
+ isn't defined) is OpenSSL 0.9.6c compatibility.
+
+ There are also macros that enable and disable the support of old
+ des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
+ and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
+ are defined, the default will apply: to support the old des routines.
+
+ In either case, one must include openssl/des.h to get the correct
+ definitions. Do not try to just include openssl/des_old.h, that
+ won't work.
+
+ NOTE: This is a major break of an old API into a new one. Software
+ authors are encouraged to switch to the DES_ style functions. Some
+ time in the future, des_old.h and the libdes compatibility functions
+ will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
+ default), and then completely removed.
+ [Richard Levitte]
+
+ *) Test for certificates which contain unsupported critical extensions.
+ If such a certificate is found during a verify operation it is
+ rejected by default: this behaviour can be overridden by either
+ handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
+ by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
+ X509_supported_extension() has also been added which returns 1 if a
+ particular extension is supported.
+ [Steve Henson]
+
+ *) Modify the behaviour of EVP cipher functions in similar way to digests
+ to retain compatibility with existing code.
+ [Steve Henson]
+
+ *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
+ compatibility with existing code. In particular the 'ctx' parameter does
+ not have to be to be initialized before the call to EVP_DigestInit() and
+ it is tidied up after a call to EVP_DigestFinal(). New function
+ EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
+ EVP_MD_CTX_copy() changed to not require the destination to be
+ initialized valid and new function EVP_MD_CTX_copy_ex() added which
+ requires the destination to be valid.
+
+ Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
+ EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
+ [Steve Henson]
+
+ *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
+ so that complete 'Handshake' protocol structures are kept in memory
+ instead of overwriting 'msg_type' and 'length' with 'body' data.
+ [Bodo Moeller]
+
+ *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
+ [Massimo Santin via Richard Levitte]
+
+ *) Major restructuring to the underlying ENGINE code. This includes
+ reduction of linker bloat, separation of pure "ENGINE" manipulation
+ (initialisation, etc) from functionality dealing with implementations
+ of specific crypto iterfaces. This change also introduces integrated
+ support for symmetric ciphers and digest implementations - so ENGINEs
+ can now accelerate these by providing EVP_CIPHER and EVP_MD
+ implementations of their own. This is detailed in crypto/engine/README
+ as it couldn't be adequately described here. However, there are a few
+ API changes worth noting - some RSA, DSA, DH, and RAND functions that
+ were changed in the original introduction of ENGINE code have now
+ reverted back - the hooking from this code to ENGINE is now a good
+ deal more passive and at run-time, operations deal directly with
+ RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
+ dereferencing through an ENGINE pointer any more. Also, the ENGINE
+ functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
+ they were not being used by the framework as there is no concept of a
+ BIGNUM_METHOD and they could not be generalised to the new
+ 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
+ ENGINE_cpy() has been removed as it cannot be consistently defined in
+ the new code.
+ [Geoff Thorpe]
+
+ *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
+ [Steve Henson]
+
+ *) Change mkdef.pl to sort symbols that get the same entry number,
+ and make sure the automatically generated functions ERR_load_*
+ become part of libeay.num as well.
+ [Richard Levitte]
+
+ *) New function SSL_renegotiate_pending(). This returns true once
+ renegotiation has been requested (either SSL_renegotiate() call
+ or HelloRequest/ClientHello receveived from the peer) and becomes
+ false once a handshake has been completed.
+ (For servers, SSL_renegotiate() followed by SSL_do_handshake()
+ sends a HelloRequest, but does not ensure that a handshake takes
+ place. SSL_renegotiate_pending() is useful for checking if the
+ client has followed the request.)
+ [Bodo Moeller]
+
+ *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
+ By default, clients may request session resumption even during
+ renegotiation (if session ID contexts permit); with this option,
+ session resumption is possible only in the first handshake.
+
+ SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
+ more bits available for options that should not be part of
+ SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
+ [Bodo Moeller]
+
+ *) Add some demos for certificate and certificate request creation.
+ [Steve Henson]
+
+ *) Make maximum certificate chain size accepted from the peer application
+ settable (SSL*_get/set_max_cert_list()), as proposed by
+ "Douglas E. Engert" <deengert@anl.gov>.
+ [Lutz Jaenicke]
+
+ *) Add support for shared libraries for Unixware-7
+ (Boyd Lynn Gerber <gerberb@zenez.com>).
+ [Lutz Jaenicke]
+
+ *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
+ be done prior to destruction. Use this to unload error strings from
+ ENGINEs that load their own error strings. NB: This adds two new API
+ functions to "get" and "set" this destroy handler in an ENGINE.
+ [Geoff Thorpe]
+
+ *) Alter all existing ENGINE implementations (except "openssl" and
+ "openbsd") to dynamically instantiate their own error strings. This
+ makes them more flexible to be built both as statically-linked ENGINEs
+ and self-contained shared-libraries loadable via the "dynamic" ENGINE.
+ Also, add stub code to each that makes building them as self-contained
+ shared-libraries easier (see README.ENGINE).
+ [Geoff Thorpe]
+
+ *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
+ implementations into applications that are completely implemented in
+ self-contained shared-libraries. The "dynamic" ENGINE exposes control
+ commands that can be used to configure what shared-library to load and
+ to control aspects of the way it is handled. Also, made an update to
+ the README.ENGINE file that brings its information up-to-date and
+ provides some information and instructions on the "dynamic" ENGINE
+ (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
+ [Geoff Thorpe]
+
+ *) Make it possible to unload ranges of ERR strings with a new
+ "ERR_unload_strings" function.
+ [Geoff Thorpe]
+
+ *) Add a copy() function to EVP_MD.
+ [Ben Laurie]
+
+ *) Make EVP_MD routines take a context pointer instead of just the
+ md_data void pointer.
+ [Ben Laurie]
+
+ *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
+ that the digest can only process a single chunk of data
+ (typically because it is provided by a piece of
+ hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
+ is only going to provide a single chunk of data, and hence the
+ framework needn't accumulate the data for oneshot drivers.
+ [Ben Laurie]
+
+ *) As with "ERR", make it possible to replace the underlying "ex_data"
+ functions. This change also alters the storage and management of global
+ ex_data state - it's now all inside ex_data.c and all "class" code (eg.
+ RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
+ index counters. The API functions that use this state have been changed
+ to take a "class_index" rather than pointers to the class's local STACK
+ and counter, and there is now an API function to dynamically create new
+ classes. This centralisation allows us to (a) plug a lot of the
+ thread-safety problems that existed, and (b) makes it possible to clean
+ up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
+ such data would previously have always leaked in application code and
+ workarounds were in place to make the memory debugging turn a blind eye
+ to it. Application code that doesn't use this new function will still
+ leak as before, but their memory debugging output will announce it now
+ rather than letting it slide.
+
+ Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
+ induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
+ has a return value to indicate success or failure.
+ [Geoff Thorpe]
+
+ *) Make it possible to replace the underlying "ERR" functions such that the
+ global state (2 LHASH tables and 2 locks) is only used by the "default"
+ implementation. This change also adds two functions to "get" and "set"
+ the implementation prior to it being automatically set the first time
+ any other ERR function takes place. Ie. an application can call "get",
+ pass the return value to a module it has just loaded, and that module
+ can call its own "set" function using that value. This means the
+ module's "ERR" operations will use (and modify) the error state in the
+ application and not in its own statically linked copy of OpenSSL code.
+ [Geoff Thorpe]
+
+ *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
+ reference counts. This performs normal REF_PRINT/REF_CHECK macros on
+ the operation, and provides a more encapsulated way for external code
+ (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
+ to use these functions rather than manually incrementing the counts.
+
+ Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
+ [Geoff Thorpe]
+
+ *) Add EVP test program.
+ [Ben Laurie]
+
+ *) Add symmetric cipher support to ENGINE. Expect the API to change!
+ [Ben Laurie]
+
+ *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
+ X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
+ X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
+ These allow a CRL to be built without having to access X509_CRL fields
+ directly. Modify 'ca' application to use new functions.
+ [Steve Henson]
+
+ *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
+ bug workarounds. Rollback attack detection is a security feature.
+ The problem will only arise on OpenSSL servers when TLSv1 is not
+ available (sslv3_server_method() or SSL_OP_NO_TLSv1).
+ Software authors not wanting to support TLSv1 will have special reasons
+ for their choice and can explicitly enable this option.
+ [Bodo Moeller, Lutz Jaenicke]
+
+ *) Rationalise EVP so it can be extended: don't include a union of
+ cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
+ (similar to those existing for EVP_CIPHER_CTX).
+ Usage example:
+
+ EVP_MD_CTX md;
+
+ EVP_MD_CTX_init(&md); /* new function call */
+ EVP_DigestInit(&md, EVP_sha1());
+ EVP_DigestUpdate(&md, in, len);
+ EVP_DigestFinal(&md, out, NULL);
+ EVP_MD_CTX_cleanup(&md); /* new function call */
+
+ [Ben Laurie]
+
+ *) Make DES key schedule conform to the usual scheme, as well as
+ correcting its structure. This means that calls to DES functions
+ now have to pass a pointer to a des_key_schedule instead of a
+ plain des_key_schedule (which was actually always a pointer
+ anyway): E.g.,
+
+ des_key_schedule ks;
+
+ des_set_key_checked(..., &ks);
+ des_ncbc_encrypt(..., &ks, ...);
+
+ (Note that a later change renames 'des_...' into 'DES_...'.)
+ [Ben Laurie]
+
+ *) Initial reduction of linker bloat: the use of some functions, such as
+ PEM causes large amounts of unused functions to be linked in due to
+ poor organisation. For example pem_all.c contains every PEM function
+ which has a knock on effect of linking in large amounts of (unused)
+ ASN1 code. Grouping together similar functions and splitting unrelated
+ functions prevents this.
+ [Steve Henson]
+
+ *) Cleanup of EVP macros.
+ [Ben Laurie]
+
+ *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
+ correct _ecb suffix.
+ [Ben Laurie]
+
+ *) Add initial OCSP responder support to ocsp application. The
+ revocation information is handled using the text based index
+ use by the ca application. The responder can either handle
+ requests generated internally, supplied in files (for example
+ via a CGI script) or using an internal minimal server.
+ [Steve Henson]
+
+ *) Add configuration choices to get zlib compression for TLS.
+ [Richard Levitte]
+
+ *) Changes to Kerberos SSL for RFC 2712 compliance:
+ 1. Implemented real KerberosWrapper, instead of just using
+ KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
+ 2. Implemented optional authenticator field of KerberosWrapper.
+
+ Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
+ and authenticator structs; see crypto/krb5/.
+
+ Generalized Kerberos calls to support multiple Kerberos libraries.
+ [Vern Staats <staatsvr@asc.hpc.mil>,
+ Jeffrey Altman <jaltman@columbia.edu>
+ via Richard Levitte]
+
+ *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
+ already does with RSA. testdsa.h now has 'priv_key/pub_key'
+ values for each of the key sizes rather than having just
+ parameters (and 'speed' generating keys each time).
+ [Geoff Thorpe]
+
+ *) Speed up EVP routines.
+ Before:
+encrypt
+type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
+des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
+des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
+des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
+decrypt
+des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
+des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
+des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
+ After:
+encrypt
+des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
+decrypt
+des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
+ [Ben Laurie]
+
+ *) Added the OS2-EMX target.
+ ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
+
+ *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
+ to support NCONF routines in extension code. New function CONF_set_nconf()
+ to allow functions which take an NCONF to also handle the old LHASH
+ structure: this means that the old CONF compatible routines can be
+ retained (in particular wrt extensions) without having to duplicate the
+ code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
+ [Steve Henson]
+
+ *) Enhance the general user interface with mechanisms for inner control
+ and with possibilities to have yes/no kind of prompts.
+ [Richard Levitte]
+
+ *) Change all calls to low level digest routines in the library and
+ applications to use EVP. Add missing calls to HMAC_cleanup() and
+ don't assume HMAC_CTX can be copied using memcpy().
+ [Verdon Walker <VWalker@novell.com>, Steve Henson]
+
+ *) Add the possibility to control engines through control names but with
+ arbitrary arguments instead of just a string.
+ Change the key loaders to take a UI_METHOD instead of a callback
+ function pointer. NOTE: this breaks binary compatibility with earlier
+ versions of OpenSSL [engine].
+ Adapt the nCipher code for these new conditions and add a card insertion
+ callback.
+ [Richard Levitte]
+
+ *) Enhance the general user interface with mechanisms to better support
+ dialog box interfaces, application-defined prompts, the possibility
+ to use defaults (for example default passwords from somewhere else)
+ and interrupts/cancellations.
+ [Richard Levitte]
+
+ *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
+ attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
+ [Steve Henson]
+
+ *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
+ tidy up some unnecessarily weird code in 'sk_new()').
+ [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
+
+ *) Change the key loading routines for ENGINEs to use the same kind
+ callback (pem_password_cb) as all other routines that need this
+ kind of callback.
+ [Richard Levitte]
+
+ *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
+ 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
+ than this minimum value is recommended.
+ [Lutz Jaenicke]
+
+ *) New random seeder for OpenVMS, using the system process statistics
+ that are easily reachable.
+ [Richard Levitte]
+
+ *) Windows apparently can't transparently handle global
+ variables defined in DLLs. Initialisations such as:
+
+ const ASN1_ITEM *it = &ASN1_INTEGER_it;
+
+ wont compile. This is used by the any applications that need to
+ declare their own ASN1 modules. This was fixed by adding the option
+ EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
+ needed for static libraries under Win32.
+ [Steve Henson]
+
+ *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
+ setting of purpose and trust fields. New X509_STORE trust and
+ purpose functions and tidy up setting in other SSL functions.
+ [Steve Henson]
+
+ *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
+ structure. These are inherited by X509_STORE_CTX when it is
+ initialised. This allows various defaults to be set in the
+ X509_STORE structure (such as flags for CRL checking and custom
+ purpose or trust settings) for functions which only use X509_STORE_CTX
+ internally such as S/MIME.
+
+ Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
+ trust settings if they are not set in X509_STORE. This allows X509_STORE
+ purposes and trust (in S/MIME for example) to override any set by default.
+
+ Add command line options for CRL checking to smime, s_client and s_server
+ applications.
+ [Steve Henson]
+
+ *) Initial CRL based revocation checking. If the CRL checking flag(s)
+ are set then the CRL is looked up in the X509_STORE structure and
+ its validity and signature checked, then if the certificate is found
+ in the CRL the verify fails with a revoked error.
+
+ Various new CRL related callbacks added to X509_STORE_CTX structure.
+
+ Command line options added to 'verify' application to support this.
+
+ This needs some additional work, such as being able to handle multiple
+ CRLs with different times, extension based lookup (rather than just
+ by subject name) and ultimately more complete V2 CRL extension
+ handling.
+ [Steve Henson]
+
+ *) Add a general user interface API (crypto/ui/). This is designed
+ to replace things like des_read_password and friends (backward
+ compatibility functions using this new API are provided).
+ The purpose is to remove prompting functions from the DES code
+ section as well as provide for prompting through dialog boxes in
+ a window system and the like.
+ [Richard Levitte]
+
+ *) Add "ex_data" support to ENGINE so implementations can add state at a
+ per-structure level rather than having to store it globally.
+ [Geoff]
+
+ *) Make it possible for ENGINE structures to be copied when retrieved by
+ ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
+ This causes the "original" ENGINE structure to act like a template,
+ analogous to the RSA vs. RSA_METHOD type of separation. Because of this
+ operational state can be localised to each ENGINE structure, despite the
+ fact they all share the same "methods". New ENGINE structures returned in
+ this case have no functional references and the return value is the single
+ structural reference. This matches the single structural reference returned
+ by ENGINE_by_id() normally, when it is incremented on the pre-existing
+ ENGINE structure.
+ [Geoff]
+
+ *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
+ needs to match any other type at all we need to manually clear the
+ tag cache.
+ [Steve Henson]
+
+ *) Changes to the "openssl engine" utility to include;
+ - verbosity levels ('-v', '-vv', and '-vvv') that provide information
+ about an ENGINE's available control commands.
+ - executing control commands from command line arguments using the
+ '-pre' and '-post' switches. '-post' is only used if '-t' is
+ specified and the ENGINE is successfully initialised. The syntax for
+ the individual commands are colon-separated, for example;
+ openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
+ [Geoff]
+
+ *) New dynamic control command support for ENGINEs. ENGINEs can now
+ declare their own commands (numbers), names (strings), descriptions,
+ and input types for run-time discovery by calling applications. A
+ subset of these commands are implicitly classed as "executable"
+ depending on their input type, and only these can be invoked through
+ the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
+ can be based on user input, config files, etc). The distinction is
+ that "executable" commands cannot return anything other than a boolean
+ result and can only support numeric or string input, whereas some
+ discoverable commands may only be for direct use through
+ ENGINE_ctrl(), eg. supporting the exchange of binary data, function
+ pointers, or other custom uses. The "executable" commands are to
+ support parameterisations of ENGINE behaviour that can be
+ unambiguously defined by ENGINEs and used consistently across any
+ OpenSSL-based application. Commands have been added to all the
+ existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
+ control over shared-library paths without source code alterations.
+ [Geoff]
+
+ *) Changed all ENGINE implementations to dynamically allocate their
+ ENGINEs rather than declaring them statically. Apart from this being
+ necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
+ this also allows the implementations to compile without using the
+ internal engine_int.h header.
+ [Geoff]
+
+ *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
+ 'const' value. Any code that should be able to modify a RAND_METHOD
+ should already have non-const pointers to it (ie. they should only
+ modify their own ones).
+ [Geoff]
+
+ *) Made a variety of little tweaks to the ENGINE code.
+ - "atalla" and "ubsec" string definitions were moved from header files
+ to C code. "nuron" string definitions were placed in variables
+ rather than hard-coded - allowing parameterisation of these values
+ later on via ctrl() commands.
+ - Removed unused "#if 0"'d code.
+ - Fixed engine list iteration code so it uses ENGINE_free() to release
+ structural references.
+ - Constified the RAND_METHOD element of ENGINE structures.
+ - Constified various get/set functions as appropriate and added
+ missing functions (including a catch-all ENGINE_cpy that duplicates
+ all ENGINE values onto a new ENGINE except reference counts/state).
+ - Removed NULL parameter checks in get/set functions. Setting a method
+ or function to NULL is a way of cancelling out a previously set
+ value. Passing a NULL ENGINE parameter is just plain stupid anyway
+ and doesn't justify the extra error symbols and code.
+ - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
+ flags from engine_int.h to engine.h.
+ - Changed prototypes for ENGINE handler functions (init(), finish(),
+ ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
+ [Geoff]
+
+ *) Implement binary inversion algorithm for BN_mod_inverse in addition
+ to the algorithm using long division. The binary algorithm can be
+ used only if the modulus is odd. On 32-bit systems, it is faster
+ only for relatively small moduli (roughly 20-30% for 128-bit moduli,
+ roughly 5-15% for 256-bit moduli), so we use it only for moduli
+ up to 450 bits. In 64-bit environments, the binary algorithm
+ appears to be advantageous for much longer moduli; here we use it
+ for moduli up to 2048 bits.
+ [Bodo Moeller]
+
+ *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
+ could not support the combine flag in choice fields.
+ [Steve Henson]
+
+ *) Add a 'copy_extensions' option to the 'ca' utility. This copies
+ extensions from a certificate request to the certificate.
+ [Steve Henson]
+
+ *) Allow multiple 'certopt' and 'nameopt' options to be separated
+ by commas. Add 'namopt' and 'certopt' options to the 'ca' config
+ file: this allows the display of the certificate about to be
+ signed to be customised, to allow certain fields to be included
+ or excluded and extension details. The old system didn't display
+ multicharacter strings properly, omitted fields not in the policy
+ and couldn't display additional details such as extensions.
+ [Steve Henson]
+
+ *) Function EC_POINTs_mul for multiple scalar multiplication
+ of an arbitrary number of elliptic curve points
+ \sum scalars[i]*points[i],
+ optionally including the generator defined for the EC_GROUP:
+ scalar*generator + \sum scalars[i]*points[i].
+
+ EC_POINT_mul is a simple wrapper function for the typical case
+ that the point list has just one item (besides the optional
+ generator).
+ [Bodo Moeller]
+
+ *) First EC_METHODs for curves over GF(p):
+
+ EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
+ operations and provides various method functions that can also
+ operate with faster implementations of modular arithmetic.
+
+ EC_GFp_mont_method() reuses most functions that are part of
+ EC_GFp_simple_method, but uses Montgomery arithmetic.
+
+ [Bodo Moeller; point addition and point doubling
+ implementation directly derived from source code provided by
+ Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
+
+ *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
+ crypto/ec/ec_lib.c):
+
+ Curves are EC_GROUP objects (with an optional group generator)
+ based on EC_METHODs that are built into the library.
+
+ Points are EC_POINT objects based on EC_GROUP objects.
+
+ Most of the framework would be able to handle curves over arbitrary
+ finite fields, but as there are no obvious types for fields other
+ than GF(p), some functions are limited to that for now.
+ [Bodo Moeller]
+
+ *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
+ that the file contains a complete HTTP response.
+ [Richard Levitte]
+
+ *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
+ change the def and num file printf format specifier from "%-40sXXX"
+ to "%-39s XXX". The latter will always guarantee a space after the
+ field while the former will cause them to run together if the field
+ is 40 of more characters long.
+ [Steve Henson]
+
+ *) Constify the cipher and digest 'method' functions and structures
+ and modify related functions to take constant EVP_MD and EVP_CIPHER
+ pointers.
+ [Steve Henson]
+
+ *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
+ in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
+ [Bodo Moeller]
+
+ *) Modify EVP_Digest*() routines so they now return values. Although the
+ internal software routines can never fail additional hardware versions
+ might.
+ [Steve Henson]
+
+ *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
+
+ Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
+ (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
+
+ ASN1 error codes
+ ERR_R_NESTED_ASN1_ERROR
+ ...
+ ERR_R_MISSING_ASN1_EOS
+ were 4 .. 9, conflicting with
+ ERR_LIB_RSA (= ERR_R_RSA_LIB)
+ ...
+ ERR_LIB_PEM (= ERR_R_PEM_LIB).
+ They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
+
+ Add new error code 'ERR_R_INTERNAL_ERROR'.
+ [Bodo Moeller]
+
+ *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
+ suffices.
+ [Bodo Moeller]
+
+ *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
+ sets the subject name for a new request or supersedes the
+ subject name in a given request. Formats that can be parsed are
+ 'CN=Some Name, OU=myOU, C=IT'
+ and
+ 'CN=Some Name/OU=myOU/C=IT'.
+
+ Add options '-batch' and '-verbose' to 'openssl req'.
+ [Massimiliano Pala <madwolf@hackmasters.net>]
+
+ *) Introduce the possibility to access global variables through
+ functions on platform were that's the best way to handle exporting
+ global variables in shared libraries. To enable this functionality,
+ one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
+ "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
+ is normally done by Configure or something similar).
+
+ To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
+ in the source file (foo.c) like this:
+
+ OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
+ OPENSSL_IMPLEMENT_GLOBAL(double,bar);
+
+ To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
+ and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
+
+ OPENSSL_DECLARE_GLOBAL(int,foo);
+ #define foo OPENSSL_GLOBAL_REF(foo)
+ OPENSSL_DECLARE_GLOBAL(double,bar);
+ #define bar OPENSSL_GLOBAL_REF(bar)
+
+ The #defines are very important, and therefore so is including the
+ header file everywhere where the defined globals are used.
+
+ The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
+ of ASN.1 items, but that structure is a bit different.
+
+ The largest change is in util/mkdef.pl which has been enhanced with
+ better and easier to understand logic to choose which symbols should
+ go into the Windows .def files as well as a number of fixes and code
+ cleanup (among others, algorithm keywords are now sorted
+ lexicographically to avoid constant rewrites).
+ [Richard Levitte]
+
+ *) In BN_div() keep a copy of the sign of 'num' before writing the
+ result to 'rm' because if rm==num the value will be overwritten
+ and produce the wrong result if 'num' is negative: this caused
+ problems with BN_mod() and BN_nnmod().
+ [Steve Henson]
+
+ *) Function OCSP_request_verify(). This checks the signature on an
+ OCSP request and verifies the signer certificate. The signer
+ certificate is just checked for a generic purpose and OCSP request
+ trust settings.
+ [Steve Henson]
+
+ *) Add OCSP_check_validity() function to check the validity of OCSP
+ responses. OCSP responses are prepared in real time and may only
+ be a few seconds old. Simply checking that the current time lies
+ between thisUpdate and nextUpdate max reject otherwise valid responses
+ caused by either OCSP responder or client clock inaccuracy. Instead
+ we allow thisUpdate and nextUpdate to fall within a certain period of
+ the current time. The age of the response can also optionally be
+ checked. Two new options -validity_period and -status_age added to
+ ocsp utility.
+ [Steve Henson]
+
+ *) If signature or public key algorithm is unrecognized print out its
+ OID rather that just UNKNOWN.
+ [Steve Henson]
+
+ *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
+ OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
+ ID to be generated from the issuer certificate alone which can then be
+ passed to OCSP_id_issuer_cmp().
+ [Steve Henson]
+
+ *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
+ ASN1 modules to export functions returning ASN1_ITEM pointers
+ instead of the ASN1_ITEM structures themselves. This adds several
+ new macros which allow the underlying ASN1 function/structure to
+ be accessed transparently. As a result code should not use ASN1_ITEM
+ references directly (such as &X509_it) but instead use the relevant
+ macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
+ use of the new ASN1 code on platforms where exporting structures
+ is problematical (for example in shared libraries) but exporting
+ functions returning pointers to structures is not.
+ [Steve Henson]
+
+ *) Add support for overriding the generation of SSL/TLS session IDs.
+ These callbacks can be registered either in an SSL_CTX or per SSL.
+ The purpose of this is to allow applications to control, if they wish,
+ the arbitrary values chosen for use as session IDs, particularly as it
+ can be useful for session caching in multiple-server environments. A
+ command-line switch for testing this (and any client code that wishes
+ to use such a feature) has been added to "s_server".
+ [Geoff Thorpe, Lutz Jaenicke]
+
+ *) Modify mkdef.pl to recognise and parse preprocessor conditionals
+ of the form '#if defined(...) || defined(...) || ...' and
+ '#if !defined(...) && !defined(...) && ...'. This also avoids
+ the growing number of special cases it was previously handling.
+ [Richard Levitte]
+
+ *) Make all configuration macros available for application by making
+ sure they are available in opensslconf.h, by giving them names starting
+ with "OPENSSL_" to avoid conflicts with other packages and by making
+ sure e_os2.h will cover all platform-specific cases together with
+ opensslconf.h.
+ Additionally, it is now possible to define configuration/platform-
+ specific names (called "system identities"). In the C code, these
+ are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
+ macro with the name beginning with "OPENSSL_SYS_", which is determined
+ from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
+ what is available.
+ [Richard Levitte]
+
+ *) New option -set_serial to 'req' and 'x509' this allows the serial
+ number to use to be specified on the command line. Previously self
+ signed certificates were hard coded with serial number 0 and the
+ CA options of 'x509' had to use a serial number in a file which was
+ auto incremented.
+ [Steve Henson]
+
+ *) New options to 'ca' utility to support V2 CRL entry extensions.
+ Currently CRL reason, invalidity date and hold instruction are
+ supported. Add new CRL extensions to V3 code and some new objects.
+ [Steve Henson]
+
+ *) New function EVP_CIPHER_CTX_set_padding() this is used to
+ disable standard block padding (aka PKCS#5 padding) in the EVP
+ API, which was previously mandatory. This means that the data is
+ not padded in any way and so the total length much be a multiple
+ of the block size, otherwise an error occurs.
+ [Steve Henson]
+
+ *) Initial (incomplete) OCSP SSL support.
+ [Steve Henson]
+
+ *) New function OCSP_parse_url(). This splits up a URL into its host,
+ port and path components: primarily to parse OCSP URLs. New -url
+ option to ocsp utility.
+ [Steve Henson]
+
+ *) New nonce behavior. The return value of OCSP_check_nonce() now
+ reflects the various checks performed. Applications can decide
+ whether to tolerate certain situations such as an absent nonce
+ in a response when one was present in a request: the ocsp application
+ just prints out a warning. New function OCSP_add1_basic_nonce()
+ this is to allow responders to include a nonce in a response even if
+ the request is nonce-less.
+ [Steve Henson]
+
+ *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
+ skipped when using openssl x509 multiple times on a single input file,
+ e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
+ [Bodo Moeller]
+
+ *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
+ set string type: to handle setting ASN1_TIME structures. Fix ca
+ utility to correctly initialize revocation date of CRLs.
+ [Steve Henson]
+
+ *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
+ the clients preferred ciphersuites and rather use its own preferences.
+ Should help to work around M$ SGC (Server Gated Cryptography) bug in
+ Internet Explorer by ensuring unchanged hash method during stepup.
+ (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
+ [Lutz Jaenicke]
+
+ *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
+ to aes and add a new 'exist' option to print out symbols that don't
+ appear to exist.
+ [Steve Henson]
+
+ *) Additional options to ocsp utility to allow flags to be set and
+ additional certificates supplied.
+ [Steve Henson]
+
+ *) Add the option -VAfile to 'openssl ocsp', so the user can give the
+ OCSP client a number of certificate to only verify the response
+ signature against.
+ [Richard Levitte]
+
+ *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
+ handle the new API. Currently only ECB, CBC modes supported. Add new
+ AES OIDs.
+
+ Add TLS AES ciphersuites as described in RFC3268, "Advanced
+ Encryption Standard (AES) Ciphersuites for Transport Layer
+ Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
+ not enabled by default and were not part of the "ALL" ciphersuite
+ alias because they were not yet official; they could be
+ explicitly requested by specifying the "AESdraft" ciphersuite
+ group alias. In the final release of OpenSSL 0.9.7, the group
+ alias is called "AES" and is part of "ALL".)
+ [Ben Laurie, Steve Henson, Bodo Moeller]
+
+ *) New function OCSP_copy_nonce() to copy nonce value (if present) from
+ request to response.
+ [Steve Henson]
+
+ *) Functions for OCSP responders. OCSP_request_onereq_count(),
+ OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
+ extract information from a certificate request. OCSP_response_create()
+ creates a response and optionally adds a basic response structure.
+ OCSP_basic_add1_status() adds a complete single response to a basic
+ response and returns the OCSP_SINGLERESP structure just added (to allow
+ extensions to be included for example). OCSP_basic_add1_cert() adds a
+ certificate to a basic response and OCSP_basic_sign() signs a basic
+ response with various flags. New helper functions ASN1_TIME_check()
+ (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
+ (converts ASN1_TIME to GeneralizedTime).
+ [Steve Henson]
+
+ *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
+ in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
+ structure from a certificate. X509_pubkey_digest() digests the public_key
+ contents: this is used in various key identifiers.
+ [Steve Henson]
+
+ *) Make sk_sort() tolerate a NULL argument.
+ [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
+
+ *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
+ passed by the function are trusted implicitly. If any of them signed the
+ response then it is assumed to be valid and is not verified.
+ [Steve Henson]
+
+ *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
+ to data. This was previously part of the PKCS7 ASN1 code. This
+ was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
+ [Steve Henson, reported by Kenneth R. Robinette
+ <support@securenetterm.com>]
+
+ *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
+ routines: without these tracing memory leaks is very painful.
+ Fix leaks in PKCS12 and PKCS7 routines.
+ [Steve Henson]
+
+ *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
+ Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
+ effectively meant GeneralizedTime would never be used. Now it
+ is initialised to -1 but X509_time_adj() now has to check the value
+ and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
+ V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
+ [Steve Henson, reported by Kenneth R. Robinette
+ <support@securenetterm.com>]
+
+ *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
+ result in a zero length in the ASN1_INTEGER structure which was
+ not consistent with the structure when d2i_ASN1_INTEGER() was used
+ and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
+ to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
+ where it did not print out a minus for negative ASN1_INTEGER.
+ [Steve Henson]
+
+ *) Add summary printout to ocsp utility. The various functions which
+ convert status values to strings have been renamed to:
+ OCSP_response_status_str(), OCSP_cert_status_str() and
+ OCSP_crl_reason_str() and are no longer static. New options
+ to verify nonce values and to disable verification. OCSP response
+ printout format cleaned up.
+ [Steve Henson]
+
+ *) Add additional OCSP certificate checks. These are those specified
+ in RFC2560. This consists of two separate checks: the CA of the
+ certificate being checked must either be the OCSP signer certificate
+ or the issuer of the OCSP signer certificate. In the latter case the
+ OCSP signer certificate must contain the OCSP signing extended key
+ usage. This check is performed by attempting to match the OCSP
+ signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
+ in the OCSP_CERTID structures of the response.
+ [Steve Henson]
+
+ *) Initial OCSP certificate verification added to OCSP_basic_verify()
+ and related routines. This uses the standard OpenSSL certificate
+ verify routines to perform initial checks (just CA validity) and
+ to obtain the certificate chain. Then additional checks will be
+ performed on the chain. Currently the root CA is checked to see
+ if it is explicitly trusted for OCSP signing. This is used to set
+ a root CA as a global signing root: that is any certificate that
+ chains to that CA is an acceptable OCSP signing certificate.
+ [Steve Henson]
+
+ *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
+ extensions from a separate configuration file.
+ As when reading extensions from the main configuration file,
+ the '-extensions ...' option may be used for specifying the
+ section to use.
+ [Massimiliano Pala <madwolf@comune.modena.it>]
+
+ *) New OCSP utility. Allows OCSP requests to be generated or
+ read. The request can be sent to a responder and the output
+ parsed, outputed or printed in text form. Not complete yet:
+ still needs to check the OCSP response validity.
+ [Steve Henson]
+
+ *) New subcommands for 'openssl ca':
+ 'openssl ca -status <serial>' prints the status of the cert with
+ the given serial number (according to the index file).
+ 'openssl ca -updatedb' updates the expiry status of certificates
+ in the index file.
+ [Massimiliano Pala <madwolf@comune.modena.it>]
+
+ *) New '-newreq-nodes' command option to CA.pl. This is like
+ '-newreq', but calls 'openssl req' with the '-nodes' option
+ so that the resulting key is not encrypted.
+ [Damien Miller <djm@mindrot.org>]
+
+ *) New configuration for the GNU Hurd.
+ [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
+
+ *) Initial code to implement OCSP basic response verify. This
+ is currently incomplete. Currently just finds the signer's
+ certificate and verifies the signature on the response.
+ [Steve Henson]
+
+ *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
+ value of OPENSSLDIR. This is available via the new '-d' option
+ to 'openssl version', and is also included in 'openssl version -a'.
+ [Bodo Moeller]
+
+ *) Allowing defining memory allocation callbacks that will be given
+ file name and line number information in additional arguments
+ (a const char* and an int). The basic functionality remains, as
+ well as the original possibility to just replace malloc(),
+ realloc() and free() by functions that do not know about these
+ additional arguments. To register and find out the current
+ settings for extended allocation functions, the following
+ functions are provided:
+
+ CRYPTO_set_mem_ex_functions
+ CRYPTO_set_locked_mem_ex_functions
+ CRYPTO_get_mem_ex_functions
+ CRYPTO_get_locked_mem_ex_functions
+
+ These work the same way as CRYPTO_set_mem_functions and friends.
+ CRYPTO_get_[locked_]mem_functions now writes 0 where such an
+ extended allocation function is enabled.
+ Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
+ a conventional allocation function is enabled.
+ [Richard Levitte, Bodo Moeller]
+
+ *) Finish off removing the remaining LHASH function pointer casts.
+ There should no longer be any prototype-casting required when using
+ the LHASH abstraction, and any casts that remain are "bugs". See
+ the callback types and macros at the head of lhash.h for details
+ (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
+ [Geoff Thorpe]
+
+ *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
+ If /dev/[u]random devices are not available or do not return enough
+ entropy, EGD style sockets (served by EGD or PRNGD) will automatically
+ be queried.
+ The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
+ /etc/entropy will be queried once each in this sequence, quering stops
+ when enough entropy was collected without querying more sockets.
+ [Lutz Jaenicke]
+
+ *) Change the Unix RAND_poll() variant to be able to poll several
+ random devices, as specified by DEVRANDOM, until a sufficient amount
+ of data has been collected. We spend at most 10 ms on each file
+ (select timeout) and read in non-blocking mode. DEVRANDOM now
+ defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
+ (previously it was just the string "/dev/urandom"), so on typical
+ platforms the 10 ms delay will never occur.
+ Also separate out the Unix variant to its own file, rand_unix.c.
+ For VMS, there's a currently-empty rand_vms.c.
+ [Richard Levitte]
+
+ *) Move OCSP client related routines to ocsp_cl.c. These
+ provide utility functions which an application needing
+ to issue a request to an OCSP responder and analyse the
+ response will typically need: as opposed to those which an
+ OCSP responder itself would need which will be added later.
+
+ OCSP_request_sign() signs an OCSP request with an API similar
+ to PKCS7_sign(). OCSP_response_status() returns status of OCSP
+ response. OCSP_response_get1_basic() extracts basic response
+ from response. OCSP_resp_find_status(): finds and extracts status
+ information from an OCSP_CERTID structure (which will be created
+ when the request structure is built). These are built from lower
+ level functions which work on OCSP_SINGLERESP structures but
+ wont normally be used unless the application wishes to examine
+ extensions in the OCSP response for example.
+
+ Replace nonce routines with a pair of functions.
+ OCSP_request_add1_nonce() adds a nonce value and optionally
+ generates a random value. OCSP_check_nonce() checks the
+ validity of the nonce in an OCSP response.
+ [Steve Henson]
+
+ *) Change function OCSP_request_add() to OCSP_request_add0_id().
+ This doesn't copy the supplied OCSP_CERTID and avoids the
+ need to free up the newly created id. Change return type
+ to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
+ This can then be used to add extensions to the request.
+ Deleted OCSP_request_new(), since most of its functionality
+ is now in OCSP_REQUEST_new() (and the case insensitive name
+ clash) apart from the ability to set the request name which
+ will be added elsewhere.
+ [Steve Henson]
+
+ *) Update OCSP API. Remove obsolete extensions argument from
+ various functions. Extensions are now handled using the new
+ OCSP extension code. New simple OCSP HTTP function which
+ can be used to send requests and parse the response.
+ [Steve Henson]
+
+ *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
+ ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
+ uses the special reorder version of SET OF to sort the attributes
+ and reorder them to match the encoded order. This resolves a long
+ standing problem: a verify on a PKCS7 structure just after signing
+ it used to fail because the attribute order did not match the
+ encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
+ it uses the received order. This is necessary to tolerate some broken
+ software that does not order SET OF. This is handled by encoding
+ as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
+ to produce the required SET OF.
+ [Steve Henson]
+
+ *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
+ OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
+ files to get correct declarations of the ASN.1 item variables.
+ [Richard Levitte]
+
+ *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
+ PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
+ asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
+ NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
+ New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
+ ASN1_ITEM and no wrapper functions.
+ [Steve Henson]
+
+ *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
+ replace the old function pointer based I/O routines. Change most of
+ the *_d2i_bio() and *_d2i_fp() functions to use these.
+ [Steve Henson]
+
+ *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
+ lines, recognice more "algorithms" that can be deselected, and make
+ it complain about algorithm deselection that isn't recognised.
+ [Richard Levitte]
+
+ *) New ASN1 functions to handle dup, sign, verify, digest, pack and
+ unpack operations in terms of ASN1_ITEM. Modify existing wrappers
+ to use new functions. Add NO_ASN1_OLD which can be set to remove
+ some old style ASN1 functions: this can be used to determine if old
+ code will still work when these eventually go away.
+ [Steve Henson]
+
+ *) New extension functions for OCSP structures, these follow the
+ same conventions as certificates and CRLs.
+ [Steve Henson]
+
+ *) New function X509V3_add1_i2d(). This automatically encodes and
+ adds an extension. Its behaviour can be customised with various
+ flags to append, replace or delete. Various wrappers added for
+ certifcates and CRLs.
+ [Steve Henson]
+
+ *) Fix to avoid calling the underlying ASN1 print routine when
+ an extension cannot be parsed. Correct a typo in the
+ OCSP_SERVICELOC extension. Tidy up print OCSP format.
+ [Steve Henson]
+
+ *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
+ entries for variables.
+ [Steve Henson]
+
+ *) Add functionality to apps/openssl.c for detecting locking
+ problems: As the program is single-threaded, all we have
+ to do is register a locking callback using an array for
+ storing which locks are currently held by the program.
+ [Bodo Moeller]
+
+ *) Use a lock around the call to CRYPTO_get_ex_new_index() in
+ SSL_get_ex_data_X509_STORE_idx(), which is used in
+ ssl_verify_cert_chain() and thus can be called at any time
+ during TLS/SSL handshakes so that thread-safety is essential.
+ Unfortunately, the ex_data design is not at all suited
+ for multi-threaded use, so it probably should be abolished.
+ [Bodo Moeller]
+
+ *) Added Broadcom "ubsec" ENGINE to OpenSSL.
+ [Broadcom, tweaked and integrated by Geoff Thorpe]
+
+ *) Move common extension printing code to new function
+ X509V3_print_extensions(). Reorganise OCSP print routines and
+ implement some needed OCSP ASN1 functions. Add OCSP extensions.
+ [Steve Henson]
+
+ *) New function X509_signature_print() to remove duplication in some
+ print routines.
+ [Steve Henson]
+
+ *) Add a special meaning when SET OF and SEQUENCE OF flags are both
+ set (this was treated exactly the same as SET OF previously). This
+ is used to reorder the STACK representing the structure to match the
+ encoding. This will be used to get round a problem where a PKCS7
+ structure which was signed could not be verified because the STACK
+ order did not reflect the encoded order.
+ [Steve Henson]
+
+ *) Reimplement the OCSP ASN1 module using the new code.
+ [Steve Henson]
+
+ *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
+ for its ASN1 operations. The old style function pointers still exist
+ for now but they will eventually go away.
+ [Steve Henson]
+
+ *) Merge in replacement ASN1 code from the ASN1 branch. This almost
+ completely replaces the old ASN1 functionality with a table driven
+ encoder and decoder which interprets an ASN1_ITEM structure describing
+ the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
+ largely maintained. Almost all of the old asn1_mac.h macro based ASN1
+ has also been converted to the new form.
+ [Steve Henson]
+
+ *) Change BN_mod_exp_recp so that negative moduli are tolerated
+ (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
+ so that BN_mod_exp_mont and BN_mod_exp_mont_word work
+ for negative moduli.
+ [Bodo Moeller]
+
+ *) Fix BN_uadd and BN_usub: Always return non-negative results instead
+ of not touching the result's sign bit.
+ [Bodo Moeller]
+
+ *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
+ set.
+ [Bodo Moeller]
+
+ *) Changed the LHASH code to use prototypes for callbacks, and created
+ macros to declare and implement thin (optionally static) functions
+ that provide type-safety and avoid function pointer casting for the
+ type-specific callbacks.
+ [Geoff Thorpe]
+
+ *) Added Kerberos Cipher Suites to be used with TLS, as written in
+ RFC 2712.
+ [Veers Staats <staatsvr@asc.hpc.mil>,
+ Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
+
+ *) Reformat the FAQ so the different questions and answers can be divided
+ in sections depending on the subject.
+ [Richard Levitte]
+
+ *) Have the zlib compression code load ZLIB.DLL dynamically under
+ Windows.
+ [Richard Levitte]
+
+ *) New function BN_mod_sqrt for computing square roots modulo a prime
+ (using the probabilistic Tonelli-Shanks algorithm unless
+ p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
+ be handled deterministically).
+ [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
+
+ *) Make BN_mod_inverse faster by explicitly handling small quotients
+ in the Euclid loop. (Speed gain about 20% for small moduli [256 or
+ 512 bits], about 30% for larger ones [1024 or 2048 bits].)
+ [Bodo Moeller]
+
+ *) New function BN_kronecker.
+ [Bodo Moeller]
+
+ *) Fix BN_gcd so that it works on negative inputs; the result is
+ positive unless both parameters are zero.
+ Previously something reasonably close to an infinite loop was
+ possible because numbers could be growing instead of shrinking
+ in the implementation of Euclid's algorithm.
+ [Bodo Moeller]
+
+ *) Fix BN_is_word() and BN_is_one() macros to take into account the
+ sign of the number in question.
+
+ Fix BN_is_word(a,w) to work correctly for w == 0.
+
+ The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
+ because its test if the absolute value of 'a' equals 'w'.
+ Note that BN_abs_is_word does *not* handle w == 0 reliably;
+ it exists mostly for use in the implementations of BN_is_zero(),
+ BN_is_one(), and BN_is_word().
+ [Bodo Moeller]
+
+ *) New function BN_swap.
+ [Bodo Moeller]
+
+ *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
+ the exponentiation functions are more likely to produce reasonable
+ results on negative inputs.
+ [Bodo Moeller]
+
+ *) Change BN_mod_mul so that the result is always non-negative.
+ Previously, it could be negative if one of the factors was negative;
+ I don't think anyone really wanted that behaviour.
+ [Bodo Moeller]
+
+ *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
+ (except for exponentiation, which stays in crypto/bn/bn_exp.c,
+ and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
+ and add new functions:
+
+ BN_nnmod
+ BN_mod_sqr
+ BN_mod_add
+ BN_mod_add_quick
+ BN_mod_sub
+ BN_mod_sub_quick
+ BN_mod_lshift1
+ BN_mod_lshift1_quick
+ BN_mod_lshift
+ BN_mod_lshift_quick
+
+ These functions always generate non-negative results.
+
+ BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
+ such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
+
+ BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
+ BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
+ be reduced modulo m.
+ [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
+
+#if 0
+ The following entry accidentily appeared in the CHANGES file
+ distributed with OpenSSL 0.9.7. The modifications described in
+ it do *not* apply to OpenSSL 0.9.7.
+
+ *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
+ was actually never needed) and in BN_mul(). The removal in BN_mul()
+ required a small change in bn_mul_part_recursive() and the addition
+ of the functions bn_cmp_part_words(), bn_sub_part_words() and
+ bn_add_part_words(), which do the same thing as bn_cmp_words(),
+ bn_sub_words() and bn_add_words() except they take arrays with
+ differing sizes.
+ [Richard Levitte]
+#endif
+
+ *) In 'openssl passwd', verify passwords read from the terminal
+ unless the '-salt' option is used (which usually means that
+ verification would just waste user's time since the resulting
+ hash is going to be compared with some given password hash)
+ or the new '-noverify' option is used.
+
+ This is an incompatible change, but it does not affect
+ non-interactive use of 'openssl passwd' (passwords on the command
+ line, '-stdin' option, '-in ...' option) and thus should not
+ cause any problems.
+ [Bodo Moeller]
+
+ *) Remove all references to RSAref, since there's no more need for it.
+ [Richard Levitte]
+
+ *) Make DSO load along a path given through an environment variable
+ (SHLIB_PATH) with shl_load().
+ [Richard Levitte]
+
+ *) Constify the ENGINE code as a result of BIGNUM constification.
+ Also constify the RSA code and most things related to it. In a
+ few places, most notable in the depth of the ASN.1 code, ugly
+ casts back to non-const were required (to be solved at a later
+ time)
+ [Richard Levitte]
+
+ *) Make it so the openssl application has all engines loaded by default.
+ [Richard Levitte]
+
+ *) Constify the BIGNUM routines a little more.
+ [Richard Levitte]
+
+ *) Add the following functions:
+
+ ENGINE_load_cswift()
+ ENGINE_load_chil()
+ ENGINE_load_atalla()
+ ENGINE_load_nuron()
+ ENGINE_load_builtin_engines()
+
+ That way, an application can itself choose if external engines that
+ are built-in in OpenSSL shall ever be used or not. The benefit is
+ that applications won't have to be linked with libdl or other dso
+ libraries unless it's really needed.
+
+ Changed 'openssl engine' to load all engines on demand.
+ Changed the engine header files to avoid the duplication of some
+ declarations (they differed!).
+ [Richard Levitte]
+
+ *) 'openssl engine' can now list capabilities.
+ [Richard Levitte]
+
+ *) Better error reporting in 'openssl engine'.
+ [Richard Levitte]
+
+ *) Never call load_dh_param(NULL) in s_server.
+ [Bodo Moeller]
+
+ *) Add engine application. It can currently list engines by name and
+ identity, and test if they are actually available.
+ [Richard Levitte]
+
+ *) Improve RPM specification file by forcing symbolic linking and making
+ sure the installed documentation is also owned by root.root.
+ [Damien Miller <djm@mindrot.org>]
+
+ *) Give the OpenSSL applications more possibilities to make use of
+ keys (public as well as private) handled by engines.
+ [Richard Levitte]
+
+ *) Add OCSP code that comes from CertCo.
+ [Richard Levitte]
+
+ *) Add VMS support for the Rijndael code.
+ [Richard Levitte]
+
+ *) Added untested support for Nuron crypto accelerator.
+ [Ben Laurie]
+
+ *) Add support for external cryptographic devices. This code was
+ previously distributed separately as the "engine" branch.
+ [Geoff Thorpe, Richard Levitte]
+
+ *) Rework the filename-translation in the DSO code. It is now possible to
+ have far greater control over how a "name" is turned into a filename
+ depending on the operating environment and any oddities about the
+ different shared library filenames on each system.
+ [Geoff Thorpe]
+
+ *) Support threads on FreeBSD-elf in Configure.
+ [Richard Levitte]
+
+ *) Fix for SHA1 assembly problem with MASM: it produces
+ warnings about corrupt line number information when assembling
+ with debugging information. This is caused by the overlapping
+ of two sections.
+ [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
+
+ *) NCONF changes.
+ NCONF_get_number() has no error checking at all. As a replacement,
+ NCONF_get_number_e() is defined (_e for "error checking") and is
+ promoted strongly. The old NCONF_get_number is kept around for
+ binary backward compatibility.
+ Make it possible for methods to load from something other than a BIO,
+ by providing a function pointer that is given a name instead of a BIO.
+ For example, this could be used to load configuration data from an
+ LDAP server.
+ [Richard Levitte]
+
+ *) Fix for non blocking accept BIOs. Added new I/O special reason
+ BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
+ with non blocking I/O was not possible because no retry code was
+ implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
+ this case.
+ [Steve Henson]
+
+ *) Added the beginnings of Rijndael support.
+ [Ben Laurie]
+
+ *) Fix for bug in DirectoryString mask setting. Add support for
+ X509_NAME_print_ex() in 'req' and X509_print_ex() function
+ to allow certificate printing to more controllable, additional
+ 'certopt' option to 'x509' to allow new printing options to be
+ set.
+ [Steve Henson]
+
+ *) Clean old EAY MD5 hack from e_os.h.
+ [Richard Levitte]
+
+ Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
+
+ *) Fix null-pointer assignment in do_change_cipher_spec() revealed
+ by using the Codenomicon TLS Test Tool (CVE-2004-0079)
+ [Joe Orton, Steve Henson]
+
+ Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
+
+ *) Fix additional bug revealed by the NISCC test suite:
+
+ Stop bug triggering large recursion when presented with
+ certain ASN.1 tags (CVE-2003-0851)
+ [Steve Henson]
+
+ Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
+
+ *) Fix various bugs revealed by running the NISCC test suite:
+
+ Stop out of bounds reads in the ASN1 code when presented with
+ invalid tags (CVE-2003-0543 and CVE-2003-0544).
+
+ If verify callback ignores invalid public key errors don't try to check
+ certificate signature with the NULL public key.
+
+ [Steve Henson]
+
+ *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
+ if the server requested one: as stated in TLS 1.0 and SSL 3.0
+ specifications.
+ [Steve Henson]
+
+ *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
+ extra data after the compression methods not only for TLS 1.0
+ but also for SSL 3.0 (as required by the specification).
+ [Bodo Moeller; problem pointed out by Matthias Loepfe]
+
+ *) Change X509_certificate_type() to mark the key as exported/exportable
+ when it's 512 *bits* long, not 512 bytes.
+ [Richard Levitte]
+
+ Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
+
+ *) Countermeasure against the Klima-Pokorny-Rosa extension of
+ Bleichbacher's attack on PKCS #1 v1.5 padding: treat
+ a protocol version number mismatch like a decryption error
+ in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
+ [Bodo Moeller]
+
+ *) Turn on RSA blinding by default in the default implementation
+ to avoid a timing attack. Applications that don't want it can call
+ RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
+ They would be ill-advised to do so in most cases.
+ [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
+
+ *) Change RSA blinding code so that it works when the PRNG is not
+ seeded (in this case, the secret RSA exponent is abused as
+ an unpredictable seed -- if it is not unpredictable, there
+ is no point in blinding anyway). Make RSA blinding thread-safe
+ by remembering the creator's thread ID in rsa->blinding and
+ having all other threads use local one-time blinding factors
+ (this requires more computation than sharing rsa->blinding, but
+ avoids excessive locking; and if an RSA object is not shared
+ between threads, blinding will still be very fast).
+ [Bodo Moeller]
+
+ Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
+
+ *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
+ via timing by performing a MAC computation even if incorrrect
+ block cipher padding has been found. This is a countermeasure
+ against active attacks where the attacker has to distinguish
+ between bad padding and a MAC verification error. (CVE-2003-0078)
+
+ [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
+ Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
+ Martin Vuagnoux (EPFL, Ilion)]
+
+ Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
+
+ *) New function OPENSSL_cleanse(), which is used to cleanse a section of
+ memory from it's contents. This is done with a counter that will
+ place alternating values in each byte. This can be used to solve
+ two issues: 1) the removal of calls to memset() by highly optimizing
+ compilers, and 2) cleansing with other values than 0, since those can
+ be read through on certain media, for example a swap space on disk.
+ [Geoff Thorpe]
+
+ *) Bugfix: client side session caching did not work with external caching,
+ because the session->cipher setting was not restored when reloading
+ from the external cache. This problem was masked, when
+ SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
+ (Found by Steve Haslam <steve@araqnid.ddts.net>.)
+ [Lutz Jaenicke]
+
+ *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
+ length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
+ [Zeev Lieber <zeev-l@yahoo.com>]
+
+ *) Undo an undocumented change introduced in 0.9.6e which caused
+ repeated calls to OpenSSL_add_all_ciphers() and
+ OpenSSL_add_all_digests() to be ignored, even after calling
+ EVP_cleanup().
+ [Richard Levitte]
+
+ *) Change the default configuration reader to deal with last line not
+ being properly terminated.
+ [Richard Levitte]
+
+ *) Change X509_NAME_cmp() so it applies the special rules on handling
+ DN values that are of type PrintableString, as well as RDNs of type
+ emailAddress where the value has the type ia5String.
+ [stefank@valicert.com via Richard Levitte]
+
+ *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
+ the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
+ doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
+ the bitwise-OR of the two for use by the majority of applications
+ wanting this behaviour, and update the docs. The documented
+ behaviour and actual behaviour were inconsistent and had been
+ changing anyway, so this is more a bug-fix than a behavioural
+ change.
+ [Geoff Thorpe, diagnosed by Nadav Har'El]
+
+ *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
+ (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
+ [Bodo Moeller]
+
+ *) Fix initialization code race conditions in
+ SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
+ SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
+ SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
+ TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
+ ssl2_get_cipher_by_char(),
+ ssl3_get_cipher_by_char().
+ [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
+
+ *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
+ the cached sessions are flushed, as the remove_cb() might use ex_data
+ contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
+ (see [openssl.org #212]).
+ [Geoff Thorpe, Lutz Jaenicke]
+
+ *) Fix typo in OBJ_txt2obj which incorrectly passed the content
+ length, instead of the encoding length to d2i_ASN1_OBJECT.
+ [Steve Henson]
+
+ Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
+
+ *) [In 0.9.6g-engine release:]
+ Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
+ [Lynn Gazis <lgazis@rainbow.com>]
+
+ Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
+
+ *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
+ and get fix the header length calculation.
+ [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
+ Alon Kantor <alonk@checkpoint.com> (and others),
+ Steve Henson]
+
+ *) Use proper error handling instead of 'assertions' in buffer
+ overflow checks added in 0.9.6e. This prevents DoS (the
+ assertions could call abort()).
+ [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
+
+ Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
+
+ *) Add various sanity checks to asn1_get_length() to reject
+ the ASN1 length bytes if they exceed sizeof(long), will appear
+ negative or the content length exceeds the length of the
+ supplied buffer.
+ [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
+
+ *) Fix cipher selection routines: ciphers without encryption had no flags
+ for the cipher strength set and where therefore not handled correctly
+ by the selection routines (PR #130).
+ [Lutz Jaenicke]
+
+ *) Fix EVP_dsa_sha macro.
+ [Nils Larsch]
+
+ *) New option
+ SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
+ for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
+ that was added in OpenSSL 0.9.6d.
+
+ As the countermeasure turned out to be incompatible with some
+ broken SSL implementations, the new option is part of SSL_OP_ALL.
+ SSL_OP_ALL is usually employed when compatibility with weird SSL
+ implementations is desired (e.g. '-bugs' option to 's_client' and
+ 's_server'), so the new option is automatically set in many
+ applications.
+ [Bodo Moeller]
+
+ *) Changes in security patch:
+
+ Changes marked "(CHATS)" were sponsored by the Defense Advanced
+ Research Projects Agency (DARPA) and Air Force Research Laboratory,
+ Air Force Materiel Command, USAF, under agreement number
+ F30602-01-2-0537.
+
+ *) Add various sanity checks to asn1_get_length() to reject
+ the ASN1 length bytes if they exceed sizeof(long), will appear
+ negative or the content length exceeds the length of the
+ supplied buffer. (CVE-2002-0659)
+ [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
+
+ *) Assertions for various potential buffer overflows, not known to
+ happen in practice.
+ [Ben Laurie (CHATS)]
+
+ *) Various temporary buffers to hold ASCII versions of integers were
+ too small for 64 bit platforms. (CVE-2002-0655)
+ [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
+
+ *) Remote buffer overflow in SSL3 protocol - an attacker could
+ supply an oversized session ID to a client. (CVE-2002-0656)
+ [Ben Laurie (CHATS)]
+
+ *) Remote buffer overflow in SSL2 protocol - an attacker could
+ supply an oversized client master key. (CVE-2002-0656)
+ [Ben Laurie (CHATS)]
+
+ Changes between 0.9.6c and 0.9.6d [9 May 2002]
+
+ *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
+ encoded as NULL) with id-dsa-with-sha1.
+ [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
+
+ *) Check various X509_...() return values in apps/req.c.
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
+ an end-of-file condition would erronously be flagged, when the CRLF
+ was just at the end of a processed block. The bug was discovered when
+ processing data through a buffering memory BIO handing the data to a
+ BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
+ <ptsekov@syntrex.com> and Nedelcho Stanev.
+ [Lutz Jaenicke]
+
+ *) Implement a countermeasure against a vulnerability recently found
+ in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
+ before application data chunks to avoid the use of known IVs
+ with data potentially chosen by the attacker.
+ [Bodo Moeller]
+
+ *) Fix length checks in ssl3_get_client_hello().
+ [Bodo Moeller]
+
+ *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
+ to prevent ssl3_read_internal() from incorrectly assuming that
+ ssl3_read_bytes() found application data while handshake
+ processing was enabled when in fact s->s3->in_read_app_data was
+ merely automatically cleared during the initial handshake.
+ [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
+
+ *) Fix object definitions for Private and Enterprise: they were not
+ recognized in their shortname (=lowercase) representation. Extend
+ obj_dat.pl to issue an error when using undefined keywords instead
+ of silently ignoring the problem (Svenning Sorensen
+ <sss@sss.dnsalias.net>).
+ [Lutz Jaenicke]
+
+ *) Fix DH_generate_parameters() so that it works for 'non-standard'
+ generators, i.e. generators other than 2 and 5. (Previously, the
+ code did not properly initialise the 'add' and 'rem' values to
+ BN_generate_prime().)
+
+ In the new general case, we do not insist that 'generator' is
+ actually a primitive root: This requirement is rather pointless;
+ a generator of the order-q subgroup is just as good, if not
+ better.
+ [Bodo Moeller]
+
+ *) Map new X509 verification errors to alerts. Discovered and submitted by
+ Tom Wu <tom@arcot.com>.
+ [Lutz Jaenicke]
+
+ *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
+ returning non-zero before the data has been completely received
+ when using non-blocking I/O.
+ [Bodo Moeller; problem pointed out by John Hughes]
+
+ *) Some of the ciphers missed the strength entry (SSL_LOW etc).
+ [Ben Laurie, Lutz Jaenicke]
+
+ *) Fix bug in SSL_clear(): bad sessions were not removed (found by
+ Yoram Zahavi <YoramZ@gilian.com>).
+ [Lutz Jaenicke]
+
+ *) Add information about CygWin 1.3 and on, and preserve proper
+ configuration for the versions before that.
+ [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
+
+ *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
+ check whether we deal with a copy of a session and do not delete from
+ the cache in this case. Problem reported by "Izhar Shoshani Levi"
+ <izhar@checkpoint.com>.
+ [Lutz Jaenicke]
+
+ *) Do not store session data into the internal session cache, if it
+ is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
+ flag is set). Proposed by Aslam <aslam@funk.com>.
+ [Lutz Jaenicke]
+
+ *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
+ value is 0.
+ [Richard Levitte]
+
+ *) [In 0.9.6d-engine release:]
+ Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
+ [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
+
+ *) Add the configuration target linux-s390x.
+ [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
+
+ *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
+ ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
+ variable as an indication that a ClientHello message has been
+ received. As the flag value will be lost between multiple
+ invocations of ssl3_accept when using non-blocking I/O, the
+ function may not be aware that a handshake has actually taken
+ place, thus preventing a new session from being added to the
+ session cache.
+
+ To avoid this problem, we now set s->new_session to 2 instead of
+ using a local variable.
+ [Lutz Jaenicke, Bodo Moeller]
+
+ *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
+ if the SSL_R_LENGTH_MISMATCH error is detected.
+ [Geoff Thorpe, Bodo Moeller]
+
+ *) New 'shared_ldflag' column in Configure platform table.
+ [Richard Levitte]
+
+ *) Fix EVP_CIPHER_mode macro.
+ ["Dan S. Camper" <dan@bti.net>]
+
+ *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
+ type, we must throw them away by setting rr->length to 0.
+ [D P Chang <dpc@qualys.com>]
+
+ Changes between 0.9.6b and 0.9.6c [21 dec 2001]
+
+ *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
+ <Dominikus.Scherkl@biodata.com>. (The previous implementation
+ worked incorrectly for those cases where range = 10..._2 and
+ 3*range is two bits longer than range.)
+ [Bodo Moeller]
+
+ *) Only add signing time to PKCS7 structures if it is not already
+ present.
+ [Steve Henson]
+
+ *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
+ OBJ_ld_ce should be OBJ_id_ce.
+ Also some ip-pda OIDs in crypto/objects/objects.txt were
+ incorrect (cf. RFC 3039).
+ [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
+
+ *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
+ returns early because it has nothing to do.
+ [Andy Schneider <andy.schneider@bjss.co.uk>]
+
+ *) [In 0.9.6c-engine release:]
+ Fix mutex callback return values in crypto/engine/hw_ncipher.c.
+ [Andy Schneider <andy.schneider@bjss.co.uk>]
+
+ *) [In 0.9.6c-engine release:]
+ Add support for Cryptographic Appliance's keyserver technology.
+ (Use engine 'keyclient')
+ [Cryptographic Appliances and Geoff Thorpe]
+
+ *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
+ is called via tools/c89.sh because arguments have to be
+ rearranged (all '-L' options must appear before the first object
+ modules).
+ [Richard Shapiro <rshapiro@abinitio.com>]
+
+ *) [In 0.9.6c-engine release:]
+ Add support for Broadcom crypto accelerator cards, backported
+ from 0.9.7.
+ [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
+
+ *) [In 0.9.6c-engine release:]
+ Add support for SureWare crypto accelerator cards from
+ Baltimore Technologies. (Use engine 'sureware')
+ [Baltimore Technologies and Mark Cox]
+
+ *) [In 0.9.6c-engine release:]
+ Add support for crypto accelerator cards from Accelerated
+ Encryption Processing, www.aep.ie. (Use engine 'aep')
+ [AEP Inc. and Mark Cox]
+
+ *) Add a configuration entry for gcc on UnixWare.
+ [Gary Benson <gbenson@redhat.com>]
+
+ *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
+ messages are stored in a single piece (fixed-length part and
+ variable-length part combined) and fix various bugs found on the way.
+ [Bodo Moeller]
+
+ *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
+ instead. BIO_gethostbyname() does not know what timeouts are
+ appropriate, so entries would stay in cache even when they have
+ become invalid.
+ [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
+
+ *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
+ faced with a pathologically small ClientHello fragment that does
+ not contain client_version: Instead of aborting with an error,
+ simply choose the highest available protocol version (i.e.,
+ TLS 1.0 unless it is disabled). In practice, ClientHello
+ messages are never sent like this, but this change gives us
+ strictly correct behaviour at least for TLS.
+ [Bodo Moeller]
+
+ *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
+ never resets s->method to s->ctx->method when called from within
+ one of the SSL handshake functions.
+ [Bodo Moeller; problem pointed out by Niko Baric]
+
+ *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
+ (sent using the client's version number) if client_version is
+ smaller than the protocol version in use. Also change
+ ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
+ the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
+ the client will at least see that alert.
+ [Bodo Moeller]
+
+ *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
+ correctly.
+ [Bodo Moeller]
+
+ *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
+ client receives HelloRequest while in a handshake.
+ [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
+
+ *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
+ should end in 'break', not 'goto end' which circuments various
+ cleanups done in state SSL_ST_OK. But session related stuff
+ must be disabled for SSL_ST_OK in the case that we just sent a
+ HelloRequest.
+
+ Also avoid some overhead by not calling ssl_init_wbio_buffer()
+ before just sending a HelloRequest.
+ [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
+
+ *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
+ reveal whether illegal block cipher padding was found or a MAC
+ verification error occured. (Neither SSLerr() codes nor alerts
+ are directly visible to potential attackers, but the information
+ may leak via logfiles.)
+
+ Similar changes are not required for the SSL 2.0 implementation
+ because the number of padding bytes is sent in clear for SSL 2.0,
+ and the extra bytes are just ignored. However ssl/s2_pkt.c
+ failed to verify that the purported number of padding bytes is in
+ the legal range.
+ [Bodo Moeller]
+
+ *) Add OpenUNIX-8 support including shared libraries
+ (Boyd Lynn Gerber <gerberb@zenez.com>).
+ [Lutz Jaenicke]
+
+ *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
+ 'wristwatch attack' using huge encoding parameters (cf.
+ James H. Manger's CRYPTO 2001 paper). Note that the
+ RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
+ encoding parameters and hence was not vulnerable.
+ [Bodo Moeller]
+
+ *) BN_sqr() bug fix.
+ [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
+
+ *) Rabin-Miller test analyses assume uniformly distributed witnesses,
+ so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
+ followed by modular reduction.
+ [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
+
+ *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
+ equivalent based on BN_pseudo_rand() instead of BN_rand().
+ [Bodo Moeller]
+
+ *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
+ This function was broken, as the check for a new client hello message
+ to handle SGC did not allow these large messages.
+ (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
+ [Lutz Jaenicke]
+
+ *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
+ [Lutz Jaenicke]
+
+ *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
+ for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
+ [Lutz Jaenicke]
+
+ *) Rework the configuration and shared library support for Tru64 Unix.
+ The configuration part makes use of modern compiler features and
+ still retains old compiler behavior for those that run older versions
+ of the OS. The shared library support part includes a variant that
+ uses the RPATH feature, and is available through the special
+ configuration target "alpha-cc-rpath", which will never be selected
+ automatically.
+ [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
+
+ *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
+ with the same message size as in ssl3_get_certificate_request().
+ Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
+ messages might inadvertently be reject as too long.
+ [Petr Lampa <lampa@fee.vutbr.cz>]
+
+ *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
+ [Andy Polyakov]
+
+ *) Modified SSL library such that the verify_callback that has been set
+ specificly for an SSL object with SSL_set_verify() is actually being
+ used. Before the change, a verify_callback set with this function was
+ ignored and the verify_callback() set in the SSL_CTX at the time of
+ the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
+ to allow the necessary settings.
+ [Lutz Jaenicke]
+
+ *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
+ explicitly to NULL, as at least on Solaris 8 this seems not always to be
+ done automatically (in contradiction to the requirements of the C
+ standard). This made problems when used from OpenSSH.
+ [Lutz Jaenicke]
+
+ *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
+ dh->length and always used
+
+ BN_rand_range(priv_key, dh->p).
+
+ BN_rand_range() is not necessary for Diffie-Hellman, and this
+ specific range makes Diffie-Hellman unnecessarily inefficient if
+ dh->length (recommended exponent length) is much smaller than the
+ length of dh->p. We could use BN_rand_range() if the order of
+ the subgroup was stored in the DH structure, but we only have
+ dh->length.
+
+ So switch back to
+
+ BN_rand(priv_key, l, ...)
+
+ where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
+ otherwise.
+ [Bodo Moeller]
+
+ *) In
+
+ RSA_eay_public_encrypt
+ RSA_eay_private_decrypt
+ RSA_eay_private_encrypt (signing)
+ RSA_eay_public_decrypt (signature verification)
+
+ (default implementations for RSA_public_encrypt,
+ RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
+ always reject numbers >= n.
+ [Bodo Moeller]
+
+ *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
+ to synchronize access to 'locking_thread'. This is necessary on
+ systems where access to 'locking_thread' (an 'unsigned long'
+ variable) is not atomic.
+ [Bodo Moeller]
+
+ *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
+ *before* setting the 'crypto_lock_rand' flag. The previous code had
+ a race condition if 0 is a valid thread ID.
+ [Travis Vitek <vitek@roguewave.com>]
+
+ *) Add support for shared libraries under Irix.
+ [Albert Chin-A-Young <china@thewrittenword.com>]
+
+ *) Add configuration option to build on Linux on both big-endian and
+ little-endian MIPS.
+ [Ralf Baechle <ralf@uni-koblenz.de>]
+
+ *) Add the possibility to create shared libraries on HP-UX.
+ [Richard Levitte]
+
+ Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
+
+ *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
+ to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
+ Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
+ PRNG state recovery was possible based on the output of
+ one PRNG request appropriately sized to gain knowledge on
+ 'md' followed by enough consecutive 1-byte PRNG requests
+ to traverse all of 'state'.
+
+ 1. When updating 'md_local' (the current thread's copy of 'md')
+ during PRNG output generation, hash all of the previous
+ 'md_local' value, not just the half used for PRNG output.
+
+ 2. Make the number of bytes from 'state' included into the hash
+ independent from the number of PRNG bytes requested.
+
+ The first measure alone would be sufficient to avoid
+ Markku-Juhani's attack. (Actually it had never occurred
+ to me that the half of 'md_local' used for chaining was the
+ half from which PRNG output bytes were taken -- I had always
+ assumed that the secret half would be used.) The second
+ measure makes sure that additional data from 'state' is never
+ mixed into 'md_local' in small portions; this heuristically
+ further strengthens the PRNG.
+ [Bodo Moeller]
+
+ *) Fix crypto/bn/asm/mips3.s.
+ [Andy Polyakov]
+
+ *) When only the key is given to "enc", the IV is undefined. Print out
+ an error message in this case.
+ [Lutz Jaenicke]
+
+ *) Handle special case when X509_NAME is empty in X509 printing routines.
+ [Steve Henson]
+
+ *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
+ positive and less than q.
+ [Bodo Moeller]
+
+ *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
+ used: it isn't thread safe and the add_lock_callback should handle
+ that itself.
+ [Paul Rose <Paul.Rose@bridge.com>]
+
+ *) Verify that incoming data obeys the block size in
+ ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
+ [Bodo Moeller]
+
+ *) Fix OAEP check.
+ [Ulf Möller, Bodo Möller]
+
+ *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
+ RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
+ when fixing the server behaviour for backwards-compatible 'client
+ hello' messages. (Note that the attack is impractical against
+ SSL 3.0 and TLS 1.0 anyway because length and version checking
+ means that the probability of guessing a valid ciphertext is
+ around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
+ paper.)
+
+ Before 0.9.5, the countermeasure (hide the error by generating a
+ random 'decryption result') did not work properly because
+ ERR_clear_error() was missing, meaning that SSL_get_error() would
+ detect the supposedly ignored error.
+
+ Both problems are now fixed.
+ [Bodo Moeller]
+
+ *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
+ (previously it was 1024).
+ [Bodo Moeller]
+
+ *) Fix for compatibility mode trust settings: ignore trust settings
+ unless some valid trust or reject settings are present.
+ [Steve Henson]
+
+ *) Fix for blowfish EVP: its a variable length cipher.
+ [Steve Henson]
+
+ *) Fix various bugs related to DSA S/MIME verification. Handle missing
+ parameters in DSA public key structures and return an error in the
+ DSA routines if parameters are absent.
+ [Steve Henson]
+
+ *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
+ in the current directory if neither $RANDFILE nor $HOME was set.
+ RAND_file_name() in 0.9.6a returned NULL in this case. This has
+ caused some confusion to Windows users who haven't defined $HOME.
+ Thus RAND_file_name() is changed again: e_os.h can define a
+ DEFAULT_HOME, which will be used if $HOME is not set.
+ For Windows, we use "C:"; on other platforms, we still require
+ environment variables.
+
+ *) Move 'if (!initialized) RAND_poll()' into regions protected by
+ CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
+ having multiple threads call RAND_poll() concurrently.
+ [Bodo Moeller]
+
+ *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
+ combination of a flag and a thread ID variable.
+ Otherwise while one thread is in ssleay_rand_bytes (which sets the
+ flag), *other* threads can enter ssleay_add_bytes without obeying
+ the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
+ that they do not hold after the first thread unsets add_do_not_lock).
+ [Bodo Moeller]
+
+ *) Change bctest again: '-x' expressions are not available in all
+ versions of 'test'.
+ [Bodo Moeller]
+
+ Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
+
+ *) Fix a couple of memory leaks in PKCS7_dataDecode()
+ [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
+
+ *) Change Configure and Makefiles to provide EXE_EXT, which will contain
+ the default extension for executables, if any. Also, make the perl
+ scripts that use symlink() to test if it really exists and use "cp"
+ if it doesn't. All this made OpenSSL compilable and installable in
+ CygWin.
+ [Richard Levitte]
+
+ *) Fix for asn1_GetSequence() for indefinite length constructed data.
+ If SEQUENCE is length is indefinite just set c->slen to the total
+ amount of data available.
+ [Steve Henson, reported by shige@FreeBSD.org]
+ [This change does not apply to 0.9.7.]
+
+ *) Change bctest to avoid here-documents inside command substitution
+ (workaround for FreeBSD /bin/sh bug).
+ For compatibility with Ultrix, avoid shell functions (introduced
+ in the bctest version that searches along $PATH).
+ [Bodo Moeller]
+
+ *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
+ with des_encrypt() defined on some operating systems, like Solaris
+ and UnixWare.
+ [Richard Levitte]
+
+ *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
+ On the Importance of Eliminating Errors in Cryptographic
+ Computations, J. Cryptology 14 (2001) 2, 101-119,
+ http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
+ [Ulf Moeller]
+
+ *) MIPS assembler BIGNUM division bug fix.
+ [Andy Polyakov]
+
+ *) Disabled incorrect Alpha assembler code.
+ [Richard Levitte]
+
+ *) Fix PKCS#7 decode routines so they correctly update the length
+ after reading an EOC for the EXPLICIT tag.
+ [Steve Henson]
+ [This change does not apply to 0.9.7.]
+
+ *) Fix bug in PKCS#12 key generation routines. This was triggered
+ if a 3DES key was generated with a 0 initial byte. Include
+ PKCS12_BROKEN_KEYGEN compilation option to retain the old
+ (but broken) behaviour.
+ [Steve Henson]
+
+ *) Enhance bctest to search for a working bc along $PATH and print
+ it when found.
+ [Tim Rice <tim@multitalents.net> via Richard Levitte]
+
+ *) Fix memory leaks in err.c: free err_data string if necessary;
+ don't write to the wrong index in ERR_set_error_data.
+ [Bodo Moeller]
+
+ *) Implement ssl23_peek (analogous to ssl23_read), which previously
+ did not exist.
+ [Bodo Moeller]
+
+ *) Replace rdtsc with _emit statements for VC++ version 5.
+ [Jeremy Cooper <jeremy@baymoo.org>]
+
+ *) Make it possible to reuse SSLv2 sessions.
+ [Richard Levitte]
+
+ *) In copy_email() check for >= 0 as a return value for
+ X509_NAME_get_index_by_NID() since 0 is a valid index.
+ [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
+
+ *) Avoid coredump with unsupported or invalid public keys by checking if
+ X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
+ PKCS7_verify() fails with non detached data.
+ [Steve Henson]
+
+ *) Don't use getenv in library functions when run as setuid/setgid.
+ New function OPENSSL_issetugid().
+ [Ulf Moeller]
+
+ *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
+ due to incorrect handling of multi-threading:
+
+ 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
+
+ 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
+
+ 3. Count how many times MemCheck_off() has been called so that
+ nested use can be treated correctly. This also avoids
+ inband-signalling in the previous code (which relied on the
+ assumption that thread ID 0 is impossible).
+ [Bodo Moeller]
+
+ *) Add "-rand" option also to s_client and s_server.
+ [Lutz Jaenicke]
+
+ *) Fix CPU detection on Irix 6.x.
+ [Kurt Hockenbury <khockenb@stevens-tech.edu> and
+ "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
+
+ *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
+ was empty.
+ [Steve Henson]
+ [This change does not apply to 0.9.7.]
+
+ *) Use the cached encoding of an X509_NAME structure rather than
+ copying it. This is apparently the reason for the libsafe "errors"
+ but the code is actually correct.
+ [Steve Henson]
+
+ *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
+ Bleichenbacher's DSA attack.
+ Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
+ to be set and top=0 forces the highest bit to be set; top=-1 is new
+ and leaves the highest bit random.
+ [Ulf Moeller, Bodo Moeller]
+
+ *) In the NCONF_...-based implementations for CONF_... queries
+ (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
+ a temporary CONF structure with the data component set to NULL
+ (which gives segmentation faults in lh_retrieve).
+ Instead, use NULL for the CONF pointer in CONF_get_string and
+ CONF_get_number (which may use environment variables) and directly
+ return NULL from CONF_get_section.
+ [Bodo Moeller]
+
+ *) Fix potential buffer overrun for EBCDIC.
+ [Ulf Moeller]
+
+ *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
+ keyUsage if basicConstraints absent for a CA.
+ [Steve Henson]
+
+ *) Make SMIME_write_PKCS7() write mail header values with a format that
+ is more generally accepted (no spaces before the semicolon), since
+ some programs can't parse those values properly otherwise. Also make
+ sure BIO's that break lines after each write do not create invalid
+ headers.
+ [Richard Levitte]
+
+ *) Make the CRL encoding routines work with empty SEQUENCE OF. The
+ macros previously used would not encode an empty SEQUENCE OF
+ and break the signature.
+ [Steve Henson]
+ [This change does not apply to 0.9.7.]
+
+ *) Zero the premaster secret after deriving the master secret in
+ DH ciphersuites.
+ [Steve Henson]
+
+ *) Add some EVP_add_digest_alias registrations (as found in
+ OpenSSL_add_all_digests()) to SSL_library_init()
+ aka OpenSSL_add_ssl_algorithms(). This provides improved
+ compatibility with peers using X.509 certificates
+ with unconventional AlgorithmIdentifier OIDs.
+ [Bodo Moeller]
+
+ *) Fix for Irix with NO_ASM.
+ ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
+
+ *) ./config script fixes.
+ [Ulf Moeller, Richard Levitte]
+
+ *) Fix 'openssl passwd -1'.
+ [Bodo Moeller]
+
+ *) Change PKCS12_key_gen_asc() so it can cope with non null
+ terminated strings whose length is passed in the passlen
+ parameter, for example from PEM callbacks. This was done
+ by adding an extra length parameter to asc2uni().
+ [Steve Henson, reported by <oddissey@samsung.co.kr>]
+
+ *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
+ call failed, free the DSA structure.
+ [Bodo Moeller]
+
+ *) Fix to uni2asc() to cope with zero length Unicode strings.
+ These are present in some PKCS#12 files.
+ [Steve Henson]
+
+ *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
+ Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
+ when writing a 32767 byte record.
+ [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
+
+ *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
+ obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
+
+ (RSA objects have a reference count access to which is protected
+ by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
+ so they are meant to be shared between threads.)
+ [Bodo Moeller, Geoff Thorpe; original patch submitted by
+ "Reddie, Steven" <Steven.Reddie@ca.com>]
+
+ *) Fix a deadlock in CRYPTO_mem_leaks().
+ [Bodo Moeller]
+
+ *) Use better test patterns in bntest.
+ [Ulf Möller]
+
+ *) rand_win.c fix for Borland C.
+ [Ulf Möller]
+
+ *) BN_rshift bugfix for n == 0.
+ [Bodo Moeller]
+
+ *) Add a 'bctest' script that checks for some known 'bc' bugs
+ so that 'make test' does not abort just because 'bc' is broken.
+ [Bodo Moeller]
+
+ *) Store verify_result within SSL_SESSION also for client side to
+ avoid potential security hole. (Re-used sessions on the client side
+ always resulted in verify_result==X509_V_OK, not using the original
+ result of the server certificate verification.)
+ [Lutz Jaenicke]
+
+ *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
+ SSL3_RT_APPLICATION_DATA, return 0.
+ Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
+ [Bodo Moeller]
+
+ *) Fix SSL_peek:
+ Both ssl2_peek and ssl3_peek, which were totally broken in earlier
+ releases, have been re-implemented by renaming the previous
+ implementations of ssl2_read and ssl3_read to ssl2_read_internal
+ and ssl3_read_internal, respectively, and adding 'peek' parameters
+ to them. The new ssl[23]_{read,peek} functions are calls to
+ ssl[23]_read_internal with the 'peek' flag set appropriately.
+ A 'peek' parameter has also been added to ssl3_read_bytes, which
+ does the actual work for ssl3_read_internal.
+ [Bodo Moeller]
+
+ *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
+ the method-specific "init()" handler. Also clean up ex_data after
+ calling the method-specific "finish()" handler. Previously, this was
+ happening the other way round.
+ [Geoff Thorpe]
+
+ *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
+ The previous value, 12, was not always sufficient for BN_mod_exp().
+ [Bodo Moeller]
+
+ *) Make sure that shared libraries get the internal name engine with
+ the full version number and not just 0. This should mark the
+ shared libraries as not backward compatible. Of course, this should
+ be changed again when we can guarantee backward binary compatibility.
+ [Richard Levitte]
+
+ *) Fix typo in get_cert_by_subject() in by_dir.c
+ [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
+
+ *) Rework the system to generate shared libraries:
+
+ - Make note of the expected extension for the shared libraries and
+ if there is a need for symbolic links from for example libcrypto.so.0
+ to libcrypto.so.0.9.7. There is extended info in Configure for
+ that.
+
+ - Make as few rebuilds of the shared libraries as possible.
+
+ - Still avoid linking the OpenSSL programs with the shared libraries.
+
+ - When installing, install the shared libraries separately from the
+ static ones.
+ [Richard Levitte]
+
+ *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
+
+ Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
+ and not in SSL_clear because the latter is also used by the
+ accept/connect functions; previously, the settings made by
+ SSL_set_read_ahead would be lost during the handshake.
+ [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
+
+ *) Correct util/mkdef.pl to be selective about disabled algorithms.
+ Previously, it would create entries for disableed algorithms no
+ matter what.
+ [Richard Levitte]
+
+ *) Added several new manual pages for SSL_* function.
+ [Lutz Jaenicke]
+
+ Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
+
+ *) In ssl23_get_client_hello, generate an error message when faced
+ with an initial SSL 3.0/TLS record that is too small to contain the
+ first two bytes of the ClientHello message, i.e. client_version.
+ (Note that this is a pathologic case that probably has never happened
+ in real life.) The previous approach was to use the version number
+ from the record header as a substitute; but our protocol choice
+ should not depend on that one because it is not authenticated
+ by the Finished messages.
+ [Bodo Moeller]
+
+ *) More robust randomness gathering functions for Windows.
+ [Jeffrey Altman <jaltman@columbia.edu>]
+
+ *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
+ not set then we don't setup the error code for issuer check errors
+ to avoid possibly overwriting other errors which the callback does
+ handle. If an application does set the flag then we assume it knows
+ what it is doing and can handle the new informational codes
+ appropriately.
+ [Steve Henson]
+
+ *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
+ a general "ANY" type, as such it should be able to decode anything
+ including tagged types. However it didn't check the class so it would
+ wrongly interpret tagged types in the same way as their universal
+ counterpart and unknown types were just rejected. Changed so that the
+ tagged and unknown types are handled in the same way as a SEQUENCE:
+ that is the encoding is stored intact. There is also a new type
+ "V_ASN1_OTHER" which is used when the class is not universal, in this
+ case we have no idea what the actual type is so we just lump them all
+ together.
+ [Steve Henson]
+
+ *) On VMS, stdout may very well lead to a file that is written to
+ in a record-oriented fashion. That means that every write() will
+ write a separate record, which will be read separately by the
+ programs trying to read from it. This can be very confusing.
+
+ The solution is to put a BIO filter in the way that will buffer
+ text until a linefeed is reached, and then write everything a
+ line at a time, so every record written will be an actual line,
+ not chunks of lines and not (usually doesn't happen, but I've
+ seen it once) several lines in one record. BIO_f_linebuffer() is
+ the answer.
+
+ Currently, it's a VMS-only method, because that's where it has
+ been tested well enough.
+ [Richard Levitte]
+
+ *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
+ it can return incorrect results.
+ (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
+ but it was in 0.9.6-beta[12].)
+ [Bodo Moeller]
+
+ *) Disable the check for content being present when verifying detached
+ signatures in pk7_smime.c. Some versions of Netscape (wrongly)
+ include zero length content when signing messages.
+ [Steve Henson]
+
+ *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
+ BIO_ctrl (for BIO pairs).
+ [Bodo Möller]
+
+ *) Add DSO method for VMS.
+ [Richard Levitte]
+
+ *) Bug fix: Montgomery multiplication could produce results with the
+ wrong sign.
+ [Ulf Möller]
+
+ *) Add RPM specification openssl.spec and modify it to build three
+ packages. The default package contains applications, application
+ documentation and run-time libraries. The devel package contains
+ include files, static libraries and function documentation. The
+ doc package contains the contents of the doc directory. The original
+ openssl.spec was provided by Damien Miller <djm@mindrot.org>.
+ [Richard Levitte]
+
+ *) Add a large number of documentation files for many SSL routines.
+ [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
+
+ *) Add a configuration entry for Sony News 4.
+ [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
+
+ *) Don't set the two most significant bits to one when generating a
+ random number < q in the DSA library.
+ [Ulf Möller]
+
+ *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
+ behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
+ the underlying transport is blocking) if a handshake took place.
+ (The default behaviour is needed by applications such as s_client
+ and s_server that use select() to determine when to use SSL_read;
+ but for applications that know in advance when to expect data, it
+ just makes things more complicated.)
+ [Bodo Moeller]
+
+ *) Add RAND_egd_bytes(), which gives control over the number of bytes read
+ from EGD.
+ [Ben Laurie]
+
+ *) Add a few more EBCDIC conditionals that make `req' and `x509'
+ work better on such systems.
+ [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
+
+ *) Add two demo programs for PKCS12_parse() and PKCS12_create().
+ Update PKCS12_parse() so it copies the friendlyName and the
+ keyid to the certificates aux info.
+ [Steve Henson]
+
+ *) Fix bug in PKCS7_verify() which caused an infinite loop
+ if there was more than one signature.
+ [Sven Uszpelkat <su@celocom.de>]
+
+ *) Major change in util/mkdef.pl to include extra information
+ about each symbol, as well as presentig variables as well
+ as functions. This change means that there's n more need
+ to rebuild the .num files when some algorithms are excluded.
+ [Richard Levitte]
+
+ *) Allow the verify time to be set by an application,
+ rather than always using the current time.
+ [Steve Henson]
+
+ *) Phase 2 verify code reorganisation. The certificate
+ verify code now looks up an issuer certificate by a
+ number of criteria: subject name, authority key id
+ and key usage. It also verifies self signed certificates
+ by the same criteria. The main comparison function is
+ X509_check_issued() which performs these checks.
+
+ Lot of changes were necessary in order to support this
+ without completely rewriting the lookup code.
+
+ Authority and subject key identifier are now cached.
+
+ The LHASH 'certs' is X509_STORE has now been replaced
+ by a STACK_OF(X509_OBJECT). This is mainly because an
+ LHASH can't store or retrieve multiple objects with
+ the same hash value.
+
+ As a result various functions (which were all internal
+ use only) have changed to handle the new X509_STORE
+ structure. This will break anything that messed round
+ with X509_STORE internally.
+
+ The functions X509_STORE_add_cert() now checks for an
+ exact match, rather than just subject name.
+
+ The X509_STORE API doesn't directly support the retrieval
+ of multiple certificates matching a given criteria, however
+ this can be worked round by performing a lookup first
+ (which will fill the cache with candidate certificates)
+ and then examining the cache for matches. This is probably
+ the best we can do without throwing out X509_LOOKUP
+ entirely (maybe later...).
+
+ The X509_VERIFY_CTX structure has been enhanced considerably.
+
+ All certificate lookup operations now go via a get_issuer()
+ callback. Although this currently uses an X509_STORE it
+ can be replaced by custom lookups. This is a simple way
+ to bypass the X509_STORE hackery necessary to make this
+ work and makes it possible to use more efficient techniques
+ in future. A very simple version which uses a simple
+ STACK for its trusted certificate store is also provided
+ using X509_STORE_CTX_trusted_stack().
+
+ The verify_cb() and verify() callbacks now have equivalents
+ in the X509_STORE_CTX structure.
+
+ X509_STORE_CTX also has a 'flags' field which can be used
+ to customise the verify behaviour.
+ [Steve Henson]
+
+ *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
+ excludes S/MIME capabilities.
+ [Steve Henson]
+
+ *) When a certificate request is read in keep a copy of the
+ original encoding of the signed data and use it when outputing
+ again. Signatures then use the original encoding rather than
+ a decoded, encoded version which may cause problems if the
+ request is improperly encoded.
+ [Steve Henson]
+
+ *) For consistency with other BIO_puts implementations, call
+ buffer_write(b, ...) directly in buffer_puts instead of calling
+ BIO_write(b, ...).
+
+ In BIO_puts, increment b->num_write as in BIO_write.
+ [Peter.Sylvester@EdelWeb.fr]
+
+ *) Fix BN_mul_word for the case where the word is 0. (We have to use
+ BN_zero, we may not return a BIGNUM with an array consisting of
+ words set to zero.)
+ [Bodo Moeller]
+
+ *) Avoid calling abort() from within the library when problems are
+ detected, except if preprocessor symbols have been defined
+ (such as REF_CHECK, BN_DEBUG etc.).
+ [Bodo Moeller]
+
+ *) New openssl application 'rsautl'. This utility can be
+ used for low level RSA operations. DER public key
+ BIO/fp routines also added.
+ [Steve Henson]
+
+ *) New Configure entry and patches for compiling on QNX 4.
+ [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
+
+ *) A demo state-machine implementation was sponsored by
+ Nuron (http://www.nuron.com/) and is now available in
+ demos/state_machine.
+ [Ben Laurie]
+
+ *) New options added to the 'dgst' utility for signature
+ generation and verification.
+ [Steve Henson]
+
+ *) Unrecognized PKCS#7 content types are now handled via a
+ catch all ASN1_TYPE structure. This allows unsupported
+ types to be stored as a "blob" and an application can
+ encode and decode it manually.
+ [Steve Henson]
+
+ *) Fix various signed/unsigned issues to make a_strex.c
+ compile under VC++.
+ [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
+
+ *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
+ length if passed a buffer. ASN1_INTEGER_to_BN failed
+ if passed a NULL BN and its argument was negative.
+ [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
+
+ *) Modification to PKCS#7 encoding routines to output definite
+ length encoding. Since currently the whole structures are in
+ memory there's not real point in using indefinite length
+ constructed encoding. However if OpenSSL is compiled with
+ the flag PKCS7_INDEFINITE_ENCODING the old form is used.
+ [Steve Henson]
+
+ *) Added BIO_vprintf() and BIO_vsnprintf().
+ [Richard Levitte]
+
+ *) Added more prefixes to parse for in the the strings written
+ through a logging bio, to cover all the levels that are available
+ through syslog. The prefixes are now:
+
+ PANIC, EMERG, EMR => LOG_EMERG
+ ALERT, ALR => LOG_ALERT
+ CRIT, CRI => LOG_CRIT
+ ERROR, ERR => LOG_ERR
+ WARNING, WARN, WAR => LOG_WARNING
+ NOTICE, NOTE, NOT => LOG_NOTICE
+ INFO, INF => LOG_INFO
+ DEBUG, DBG => LOG_DEBUG
+
+ and as before, if none of those prefixes are present at the
+ beginning of the string, LOG_ERR is chosen.
+
+ On Win32, the LOG_* levels are mapped according to this:
+
+ LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
+ LOG_WARNING => EVENTLOG_WARNING_TYPE
+ LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
+
+ [Richard Levitte]
+
+ *) Made it possible to reconfigure with just the configuration
+ argument "reconf" or "reconfigure". The command line arguments
+ are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
+ and are retrieved from there when reconfiguring.
+ [Richard Levitte]
+
+ *) MD4 implemented.
+ [Assar Westerlund <assar@sics.se>, Richard Levitte]
+
+ *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
+ [Richard Levitte]
+
+ *) The obj_dat.pl script was messing up the sorting of object
+ names. The reason was that it compared the quoted version
+ of strings as a result "OCSP" > "OCSP Signing" because
+ " > SPACE. Changed script to store unquoted versions of
+ names and add quotes on output. It was also omitting some
+ names from the lookup table if they were given a default
+ value (that is if SN is missing it is given the same
+ value as LN and vice versa), these are now added on the
+ grounds that if an object has a name we should be able to
+ look it up. Finally added warning output when duplicate
+ short or long names are found.
+ [Steve Henson]
+
+ *) Changes needed for Tandem NSK.
+ [Scott Uroff <scott@xypro.com>]
+
+ *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
+ RSA_padding_check_SSLv23(), special padding was never detected
+ and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
+ version rollback attacks was not effective.
+
+ In s23_clnt.c, don't use special rollback-attack detection padding
+ (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
+ client; similarly, in s23_srvr.c, don't do the rollback check if
+ SSL 2.0 is the only protocol enabled in the server.
+ [Bodo Moeller]
+
+ *) Make it possible to get hexdumps of unprintable data with 'openssl
+ asn1parse'. By implication, the functions ASN1_parse_dump() and
+ BIO_dump_indent() are added.
+ [Richard Levitte]
+
+ *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
+ these print out strings and name structures based on various
+ flags including RFC2253 support and proper handling of
+ multibyte characters. Added options to the 'x509' utility
+ to allow the various flags to be set.
+ [Steve Henson]
+
+ *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
+ Also change the functions X509_cmp_current_time() and
+ X509_gmtime_adj() work with an ASN1_TIME structure,
+ this will enable certificates using GeneralizedTime in validity
+ dates to be checked.
+ [Steve Henson]
+
+ *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
+ negative public key encodings) on by default,
+ NO_NEG_PUBKEY_BUG can be set to disable it.
+ [Steve Henson]
+
+ *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
+ content octets. An i2c_ASN1_OBJECT is unnecessary because
+ the encoding can be trivially obtained from the structure.
+ [Steve Henson]
+
+ *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
+ not read locks (CRYPTO_r_[un]lock).
+ [Bodo Moeller]
+
+ *) A first attempt at creating official support for shared
+ libraries through configuration. I've kept it so the
+ default is static libraries only, and the OpenSSL programs
+ are always statically linked for now, but there are
+ preparations for dynamic linking in place.
+ This has been tested on Linux and Tru64.
+ [Richard Levitte]
+
+ *) Randomness polling function for Win9x, as described in:
+ Peter Gutmann, Software Generation of Practically Strong
+ Random Numbers.
+ [Ulf Möller]
+
+ *) Fix so PRNG is seeded in req if using an already existing
+ DSA key.
+ [Steve Henson]
+
+ *) New options to smime application. -inform and -outform
+ allow alternative formats for the S/MIME message including
+ PEM and DER. The -content option allows the content to be
+ specified separately. This should allow things like Netscape
+ form signing output easier to verify.
+ [Steve Henson]
+
+ *) Fix the ASN1 encoding of tags using the 'long form'.
+ [Steve Henson]
+
+ *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
+ STRING types. These convert content octets to and from the
+ underlying type. The actual tag and length octets are
+ already assumed to have been read in and checked. These
+ are needed because all other string types have virtually
+ identical handling apart from the tag. By having versions
+ of the ASN1 functions that just operate on content octets
+ IMPLICIT tagging can be handled properly. It also allows
+ the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
+ and ASN1_INTEGER are identical apart from the tag.
+ [Steve Henson]
+
+ *) Change the handling of OID objects as follows:
+
+ - New object identifiers are inserted in objects.txt, following
+ the syntax given in objects.README.
+ - objects.pl is used to process obj_mac.num and create a new
+ obj_mac.h.
+ - obj_dat.pl is used to create a new obj_dat.h, using the data in
+ obj_mac.h.
+
+ This is currently kind of a hack, and the perl code in objects.pl
+ isn't very elegant, but it works as I intended. The simplest way
+ to check that it worked correctly is to look in obj_dat.h and
+ check the array nid_objs and make sure the objects haven't moved
+ around (this is important!). Additions are OK, as well as
+ consistent name changes.
+ [Richard Levitte]
+
+ *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
+ [Bodo Moeller]
+
+ *) Addition of the command line parameter '-rand file' to 'openssl req'.
+ The given file adds to whatever has already been seeded into the
+ random pool through the RANDFILE configuration file option or
+ environment variable, or the default random state file.
+ [Richard Levitte]
+
+ *) mkstack.pl now sorts each macro group into lexical order.
+ Previously the output order depended on the order the files
+ appeared in the directory, resulting in needless rewriting
+ of safestack.h .
+ [Steve Henson]
+
+ *) Patches to make OpenSSL compile under Win32 again. Mostly
+ work arounds for the VC++ problem that it treats func() as
+ func(void). Also stripped out the parts of mkdef.pl that
+ added extra typesafe functions: these no longer exist.
+ [Steve Henson]
+
+ *) Reorganisation of the stack code. The macros are now all
+ collected in safestack.h . Each macro is defined in terms of
+ a "stack macro" of the form SKM_<name>(type, a, b). The
+ DEBUG_SAFESTACK is now handled in terms of function casts,
+ this has the advantage of retaining type safety without the
+ use of additional functions. If DEBUG_SAFESTACK is not defined
+ then the non typesafe macros are used instead. Also modified the
+ mkstack.pl script to handle the new form. Needs testing to see
+ if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
+ the default if no major problems. Similar behaviour for ASN1_SET_OF
+ and PKCS12_STACK_OF.
+ [Steve Henson]
+
+ *) When some versions of IIS use the 'NET' form of private key the
+ key derivation algorithm is different. Normally MD5(password) is
+ used as a 128 bit RC4 key. In the modified case
+ MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
+ new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
+ as the old Netscape_RSA functions except they have an additional
+ 'sgckey' parameter which uses the modified algorithm. Also added
+ an -sgckey command line option to the rsa utility. Thanks to
+ Adrian Peck <bertie@ncipher.com> for posting details of the modified
+ algorithm to openssl-dev.
+ [Steve Henson]
+
+ *) The evp_local.h macros were using 'c.##kname' which resulted in
+ invalid expansion on some systems (SCO 5.0.5 for example).
+ Corrected to 'c.kname'.
+ [Phillip Porch <root@theporch.com>]
+
+ *) New X509_get1_email() and X509_REQ_get1_email() functions that return
+ a STACK of email addresses from a certificate or request, these look
+ in the subject name and the subject alternative name extensions and
+ omit any duplicate addresses.
+ [Steve Henson]
+
+ *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
+ This makes DSA verification about 2 % faster.
+ [Bodo Moeller]
+
+ *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
+ (meaning that now 2^5 values will be precomputed, which is only 4 KB
+ plus overhead for 1024 bit moduli).
+ This makes exponentiations about 0.5 % faster for 1024 bit
+ exponents (as measured by "openssl speed rsa2048").
+ [Bodo Moeller]
+
+ *) Rename memory handling macros to avoid conflicts with other
+ software:
+ Malloc => OPENSSL_malloc
+ Malloc_locked => OPENSSL_malloc_locked
+ Realloc => OPENSSL_realloc
+ Free => OPENSSL_free
+ [Richard Levitte]
+
+ *) New function BN_mod_exp_mont_word for small bases (roughly 15%
+ faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
+ [Bodo Moeller]
+
+ *) CygWin32 support.
+ [John Jarvie <jjarvie@newsguy.com>]
+
+ *) The type-safe stack code has been rejigged. It is now only compiled
+ in when OpenSSL is configured with the DEBUG_SAFESTACK option and
+ by default all type-specific stack functions are "#define"d back to
+ standard stack functions. This results in more streamlined output
+ but retains the type-safety checking possibilities of the original
+ approach.
+ [Geoff Thorpe]
+
+ *) The STACK code has been cleaned up, and certain type declarations
+ that didn't make a lot of sense have been brought in line. This has
+ also involved a cleanup of sorts in safestack.h to more correctly
+ map type-safe stack functions onto their plain stack counterparts.
+ This work has also resulted in a variety of "const"ifications of
+ lots of the code, especially "_cmp" operations which should normally
+ be prototyped with "const" parameters anyway.
+ [Geoff Thorpe]
+
+ *) When generating bytes for the first time in md_rand.c, 'stir the pool'
+ by seeding with STATE_SIZE dummy bytes (with zero entropy count).
+ (The PRNG state consists of two parts, the large pool 'state' and 'md',
+ where all of 'md' is used each time the PRNG is used, but 'state'
+ is used only indexed by a cyclic counter. As entropy may not be
+ well distributed from the beginning, 'md' is important as a
+ chaining variable. However, the output function chains only half
+ of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
+ all of 'md', and seeding with STATE_SIZE dummy bytes will result
+ in all of 'state' being rewritten, with the new values depending
+ on virtually all of 'md'. This overcomes the 80 bit limitation.)
+ [Bodo Moeller]
+
+ *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
+ the handshake is continued after ssl_verify_cert_chain();
+ otherwise, if SSL_VERIFY_NONE is set, remaining error codes
+ can lead to 'unexplainable' connection aborts later.
+ [Bodo Moeller; problem tracked down by Lutz Jaenicke]
+
+ *) Major EVP API cipher revision.
+ Add hooks for extra EVP features. This allows various cipher
+ parameters to be set in the EVP interface. Support added for variable
+ key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
+ setting of RC2 and RC5 parameters.
+
+ Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
+ ciphers.
+
+ Remove lots of duplicated code from the EVP library. For example *every*
+ cipher init() function handles the 'iv' in the same way according to the
+ cipher mode. They also all do nothing if the 'key' parameter is NULL and
+ for CFB and OFB modes they zero ctx->num.
+
+ New functionality allows removal of S/MIME code RC2 hack.
+
+ Most of the routines have the same form and so can be declared in terms
+ of macros.
+
+ By shifting this to the top level EVP_CipherInit() it can be removed from
+ all individual ciphers. If the cipher wants to handle IVs or keys
+ differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
+ flags.
+
+ Change lots of functions like EVP_EncryptUpdate() to now return a
+ value: although software versions of the algorithms cannot fail
+ any installed hardware versions can.
+ [Steve Henson]
+
+ *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
+ this option is set, tolerate broken clients that send the negotiated
+ protocol version number instead of the requested protocol version
+ number.
+ [Bodo Moeller]
+
+ *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
+ i.e. non-zero for export ciphersuites, zero otherwise.
+ Previous versions had this flag inverted, inconsistent with
+ rsa_tmp_cb (..._TMP_RSA_CB).
+ [Bodo Moeller; problem reported by Amit Chopra]
+
+ *) Add missing DSA library text string. Work around for some IIS
+ key files with invalid SEQUENCE encoding.
+ [Steve Henson]
+
+ *) Add a document (doc/standards.txt) that list all kinds of standards
+ and so on that are implemented in OpenSSL.
+ [Richard Levitte]
+
+ *) Enhance c_rehash script. Old version would mishandle certificates
+ with the same subject name hash and wouldn't handle CRLs at all.
+ Added -fingerprint option to crl utility, to support new c_rehash
+ features.
+ [Steve Henson]
+
+ *) Eliminate non-ANSI declarations in crypto.h and stack.h.
+ [Ulf Möller]
+
+ *) Fix for SSL server purpose checking. Server checking was
+ rejecting certificates which had extended key usage present
+ but no ssl client purpose.
+ [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
+
+ *) Make PKCS#12 code work with no password. The PKCS#12 spec
+ is a little unclear about how a blank password is handled.
+ Since the password in encoded as a BMPString with terminating
+ double NULL a zero length password would end up as just the
+ double NULL. However no password at all is different and is
+ handled differently in the PKCS#12 key generation code. NS
+ treats a blank password as zero length. MSIE treats it as no
+ password on export: but it will try both on import. We now do
+ the same: PKCS12_parse() tries zero length and no password if
+ the password is set to "" or NULL (NULL is now a valid password:
+ it wasn't before) as does the pkcs12 application.
+ [Steve Henson]
+
+ *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
+ perror when PEM_read_bio_X509_REQ fails, the error message must
+ be obtained from the error queue.
+ [Bodo Moeller]
+
+ *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
+ it in ERR_remove_state if appropriate, and change ERR_get_state
+ accordingly to avoid race conditions (this is necessary because
+ thread_hash is no longer constant once set).
+ [Bodo Moeller]
+
+ *) Bugfix for linux-elf makefile.one.
+ [Ulf Möller]
+
+ *) RSA_get_default_method() will now cause a default
+ RSA_METHOD to be chosen if one doesn't exist already.
+ Previously this was only set during a call to RSA_new()
+ or RSA_new_method(NULL) meaning it was possible for
+ RSA_get_default_method() to return NULL.
+ [Geoff Thorpe]
+
+ *) Added native name translation to the existing DSO code
+ that will convert (if the flag to do so is set) filenames
+ that are sufficiently small and have no path information
+ into a canonical native form. Eg. "blah" converted to
+ "libblah.so" or "blah.dll" etc.
+ [Geoff Thorpe]
+
+ *) New function ERR_error_string_n(e, buf, len) which is like
+ ERR_error_string(e, buf), but writes at most 'len' bytes
+ including the 0 terminator. For ERR_error_string_n, 'buf'
+ may not be NULL.
+ [Damien Miller <djm@mindrot.org>, Bodo Moeller]
+
+ *) CONF library reworked to become more general. A new CONF
+ configuration file reader "class" is implemented as well as a
+ new functions (NCONF_*, for "New CONF") to handle it. The now
+ old CONF_* functions are still there, but are reimplemented to
+ work in terms of the new functions. Also, a set of functions
+ to handle the internal storage of the configuration data is
+ provided to make it easier to write new configuration file
+ reader "classes" (I can definitely see something reading a
+ configuration file in XML format, for example), called _CONF_*,
+ or "the configuration storage API"...
+
+ The new configuration file reading functions are:
+
+ NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
+ NCONF_get_section, NCONF_get_string, NCONF_get_numbre
+
+ NCONF_default, NCONF_WIN32
+
+ NCONF_dump_fp, NCONF_dump_bio
+
+ NCONF_default and NCONF_WIN32 are method (or "class") choosers,
+ NCONF_new creates a new CONF object. This works in the same way
+ as other interfaces in OpenSSL, like the BIO interface.
+ NCONF_dump_* dump the internal storage of the configuration file,
+ which is useful for debugging. All other functions take the same
+ arguments as the old CONF_* functions wth the exception of the
+ first that must be a `CONF *' instead of a `LHASH *'.
+
+ To make it easer to use the new classes with the old CONF_* functions,
+ the function CONF_set_default_method is provided.
+ [Richard Levitte]
+
+ *) Add '-tls1' option to 'openssl ciphers', which was already
+ mentioned in the documentation but had not been implemented.
+ (This option is not yet really useful because even the additional
+ experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
+ [Bodo Moeller]
+
+ *) Initial DSO code added into libcrypto for letting OpenSSL (and
+ OpenSSL-based applications) load shared libraries and bind to
+ them in a portable way.
+ [Geoff Thorpe, with contributions from Richard Levitte]
+
+ Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
+
+ *) Make sure _lrotl and _lrotr are only used with MSVC.
+
+ *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
+ (the default implementation of RAND_status).
+
+ *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
+ to '-clrext' (= clear extensions), as intended and documented.
+ [Bodo Moeller; inconsistency pointed out by Michael Attili
+ <attili@amaxo.com>]
+
+ *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
+ was larger than the MD block size.
+ [Steve Henson, pointed out by Yost William <YostW@tce.com>]
+
+ *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
+ fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
+ using the passed key: if the passed key was a private key the result
+ of X509_print(), for example, would be to print out all the private key
+ components.
+ [Steve Henson]
+
+ *) des_quad_cksum() byte order bug fix.
+ [Ulf Möller, using the problem description in krb4-0.9.7, where
+ the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
+
+ *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
+ discouraged.
+ [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
+
+ *) For easily testing in shell scripts whether some command
+ 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
+ returns with exit code 0 iff no command of the given name is available.
+ 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
+ the output goes to stdout and nothing is printed to stderr.
+ Additional arguments are always ignored.
+
+ Since for each cipher there is a command of the same name,
+ the 'no-cipher' compilation switches can be tested this way.
+
+ ('openssl no-XXX' is not able to detect pseudo-commands such
+ as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
+ [Bodo Moeller]
+
+ *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
+ [Bodo Moeller]
+
+ *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
+ is set; it will be thrown away anyway because each handshake creates
+ its own key.
+ ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
+ to parameters -- in previous versions (since OpenSSL 0.9.3) the
+ 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
+ you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
+ [Bodo Moeller]
+
+ *) New s_client option -ign_eof: EOF at stdin is ignored, and
+ 'Q' and 'R' lose their special meanings (quit/renegotiate).
+ This is part of what -quiet does; unlike -quiet, -ign_eof
+ does not suppress any output.
+ [Richard Levitte]
+
+ *) Add compatibility options to the purpose and trust code. The
+ purpose X509_PURPOSE_ANY is "any purpose" which automatically
+ accepts a certificate or CA, this was the previous behaviour,
+ with all the associated security issues.
+
+ X509_TRUST_COMPAT is the old trust behaviour: only and
+ automatically trust self signed roots in certificate store. A
+ new trust setting X509_TRUST_DEFAULT is used to specify that
+ a purpose has no associated trust setting and it should instead
+ use the value in the default purpose.
+ [Steve Henson]
+
+ *) Fix the PKCS#8 DSA private key code so it decodes keys again
+ and fix a memory leak.
+ [Steve Henson]
+
+ *) In util/mkerr.pl (which implements 'make errors'), preserve
+ reason strings from the previous version of the .c file, as
+ the default to have only downcase letters (and digits) in
+ automatically generated reasons codes is not always appropriate.
+ [Bodo Moeller]
+
+ *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
+ using strerror. Previously, ERR_reason_error_string() returned
+ library names as reason strings for SYSerr; but SYSerr is a special
+ case where small numbers are errno values, not library numbers.
+ [Bodo Moeller]
+
+ *) Add '-dsaparam' option to 'openssl dhparam' application. This
+ converts DSA parameters into DH parameters. (When creating parameters,
+ DSA_generate_parameters is used.)
+ [Bodo Moeller]
+
+ *) Include 'length' (recommended exponent length) in C code generated
+ by 'openssl dhparam -C'.
+ [Bodo Moeller]
+
+ *) The second argument to set_label in perlasm was already being used
+ so couldn't be used as a "file scope" flag. Moved to third argument
+ which was free.
+ [Steve Henson]
+
+ *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
+ instead of RAND_bytes for encryption IVs and salts.
+ [Bodo Moeller]
+
+ *) Include RAND_status() into RAND_METHOD instead of implementing
+ it only for md_rand.c Otherwise replacing the PRNG by calling
+ RAND_set_rand_method would be impossible.
+ [Bodo Moeller]
+
+ *) Don't let DSA_generate_key() enter an infinite loop if the random
+ number generation fails.
+ [Bodo Moeller]
+
+ *) New 'rand' application for creating pseudo-random output.
+ [Bodo Moeller]
+
+ *) Added configuration support for Linux/IA64
+ [Rolf Haberrecker <rolf@suse.de>]
+
+ *) Assembler module support for Mingw32.
+ [Ulf Möller]
+
+ *) Shared library support for HPUX (in shlib/).
+ [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
+
+ *) Shared library support for Solaris gcc.
+ [Lutz Behnke <behnke@trustcenter.de>]
+
+ Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
+
+ *) PKCS7_encrypt() was adding text MIME headers twice because they
+ were added manually and by SMIME_crlf_copy().
+ [Steve Henson]
+
+ *) In bntest.c don't call BN_rand with zero bits argument.
+ [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
+
+ *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
+ case was implemented. This caused BN_div_recp() to fail occasionally.
+ [Ulf Möller]
+
+ *) Add an optional second argument to the set_label() in the perl
+ assembly language builder. If this argument exists and is set
+ to 1 it signals that the assembler should use a symbol whose
+ scope is the entire file, not just the current function. This
+ is needed with MASM which uses the format label:: for this scope.
+ [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
+
+ *) Change the ASN1 types so they are typedefs by default. Before
+ almost all types were #define'd to ASN1_STRING which was causing
+ STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
+ for example.
+ [Steve Henson]
+
+ *) Change names of new functions to the new get1/get0 naming
+ convention: After 'get1', the caller owns a reference count
+ and has to call ..._free; 'get0' returns a pointer to some
+ data structure without incrementing reference counters.
+ (Some of the existing 'get' functions increment a reference
+ counter, some don't.)
+ Similarly, 'set1' and 'add1' functions increase reference
+ counters or duplicate objects.
+ [Steve Henson]
+
+ *) Allow for the possibility of temp RSA key generation failure:
+ the code used to assume it always worked and crashed on failure.
+ [Steve Henson]
+
+ *) Fix potential buffer overrun problem in BIO_printf().
+ [Ulf Möller, using public domain code by Patrick Powell; problem
+ pointed out by David Sacerdote <das33@cornell.edu>]
+
+ *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
+ RAND_egd() and RAND_status(). In the command line application,
+ the EGD socket can be specified like a seed file using RANDFILE
+ or -rand.
+ [Ulf Möller]
+
+ *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
+ Some CAs (e.g. Verisign) distribute certificates in this form.
+ [Steve Henson]
+
+ *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
+ list to exclude them. This means that no special compilation option
+ is needed to use anonymous DH: it just needs to be included in the
+ cipher list.
+ [Steve Henson]
+
+ *) Change the EVP_MD_CTX_type macro so its meaning consistent with
+ EVP_MD_type. The old functionality is available in a new macro called
+ EVP_MD_md(). Change code that uses it and update docs.
+ [Steve Henson]
+
+ *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
+ where the 'void *' argument is replaced by a function pointer argument.
+ Previously 'void *' was abused to point to functions, which works on
+ many platforms, but is not correct. As these functions are usually
+ called by macros defined in OpenSSL header files, most source code
+ should work without changes.
+ [Richard Levitte]
+
+ *) <openssl/opensslconf.h> (which is created by Configure) now contains
+ sections with information on -D... compiler switches used for
+ compiling the library so that applications can see them. To enable
+ one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
+ must be defined. E.g.,
+ #define OPENSSL_ALGORITHM_DEFINES
+ #include <openssl/opensslconf.h>
+ defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
+ [Richard Levitte, Ulf and Bodo Möller]
+
+ *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
+ record layer.
+ [Bodo Moeller]
+
+ *) Change the 'other' type in certificate aux info to a STACK_OF
+ X509_ALGOR. Although not an AlgorithmIdentifier as such it has
+ the required ASN1 format: arbitrary types determined by an OID.
+ [Steve Henson]
+
+ *) Add some PEM_write_X509_REQ_NEW() functions and a command line
+ argument to 'req'. This is not because the function is newer or
+ better than others it just uses the work 'NEW' in the certificate
+ request header lines. Some software needs this.
+ [Steve Henson]
+
+ *) Reorganise password command line arguments: now passwords can be
+ obtained from various sources. Delete the PEM_cb function and make
+ it the default behaviour: i.e. if the callback is NULL and the
+ usrdata argument is not NULL interpret it as a null terminated pass
+ phrase. If usrdata and the callback are NULL then the pass phrase
+ is prompted for as usual.
+ [Steve Henson]
+
+ *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
+ the support is automatically enabled. The resulting binaries will
+ autodetect the card and use it if present.
+ [Ben Laurie and Compaq Inc.]
+
+ *) Work around for Netscape hang bug. This sends certificate request
+ and server done in one record. Since this is perfectly legal in the
+ SSL/TLS protocol it isn't a "bug" option and is on by default. See
+ the bugs/SSLv3 entry for more info.
+ [Steve Henson]
+
+ *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
+ [Andy Polyakov]
+
+ *) Add -rand argument to smime and pkcs12 applications and read/write
+ of seed file.
+ [Steve Henson]
+
+ *) New 'passwd' tool for crypt(3) and apr1 password hashes.
+ [Bodo Moeller]
+
+ *) Add command line password options to the remaining applications.
+ [Steve Henson]
+
+ *) Bug fix for BN_div_recp() for numerators with an even number of
+ bits.
+ [Ulf Möller]
+
+ *) More tests in bntest.c, and changed test_bn output.
+ [Ulf Möller]
+
+ *) ./config recognizes MacOS X now.
+ [Andy Polyakov]
+
+ *) Bug fix for BN_div() when the first words of num and divsor are
+ equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
+ [Ulf Möller]
+
+ *) Add support for various broken PKCS#8 formats, and command line
+ options to produce them.
+ [Steve Henson]
+
+ *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
+ get temporary BIGNUMs from a BN_CTX.
+ [Ulf Möller]
+
+ *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
+ for p == 0.
+ [Ulf Möller]
+
+ *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
+ include a #define from the old name to the new. The original intent
+ was that statically linked binaries could for example just call
+ SSLeay_add_all_ciphers() to just add ciphers to the table and not
+ link with digests. This never worked becayse SSLeay_add_all_digests()
+ and SSLeay_add_all_ciphers() were in the same source file so calling
+ one would link with the other. They are now in separate source files.
+ [Steve Henson]
+
+ *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
+ [Steve Henson]
+
+ *) Use a less unusual form of the Miller-Rabin primality test (it used
+ a binary algorithm for exponentiation integrated into the Miller-Rabin
+ loop, our standard modexp algorithms are faster).
+ [Bodo Moeller]
+
+ *) Support for the EBCDIC character set completed.
+ [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
+
+ *) Source code cleanups: use const where appropriate, eliminate casts,
+ use void * instead of char * in lhash.
+ [Ulf Möller]
+
+ *) Bugfix: ssl3_send_server_key_exchange was not restartable
+ (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
+ this the server could overwrite ephemeral keys that the client
+ has already seen).
+ [Bodo Moeller]
+
+ *) Turn DSA_is_prime into a macro that calls BN_is_prime,
+ using 50 iterations of the Rabin-Miller test.
+
+ DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
+ iterations of the Rabin-Miller test as required by the appendix
+ to FIPS PUB 186[-1]) instead of DSA_is_prime.
+ As BN_is_prime_fasttest includes trial division, DSA parameter
+ generation becomes much faster.
+
+ This implies a change for the callback functions in DSA_is_prime
+ and DSA_generate_parameters: The callback function is called once
+ for each positive witness in the Rabin-Miller test, not just
+ occasionally in the inner loop; and the parameters to the
+ callback function now provide an iteration count for the outer
+ loop rather than for the current invocation of the inner loop.
+ DSA_generate_parameters additionally can call the callback
+ function with an 'iteration count' of -1, meaning that a
+ candidate has passed the trial division test (when q is generated
+ from an application-provided seed, trial division is skipped).
+ [Bodo Moeller]
+
+ *) New function BN_is_prime_fasttest that optionally does trial
+ division before starting the Rabin-Miller test and has
+ an additional BN_CTX * argument (whereas BN_is_prime always
+ has to allocate at least one BN_CTX).
+ 'callback(1, -1, cb_arg)' is called when a number has passed the
+ trial division stage.
+ [Bodo Moeller]
+
+ *) Fix for bug in CRL encoding. The validity dates weren't being handled
+ as ASN1_TIME.
+ [Steve Henson]
+
+ *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
+ [Steve Henson]
+
+ *) New function BN_pseudo_rand().
+ [Ulf Möller]
+
+ *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
+ bignum version of BN_from_montgomery() with the working code from
+ SSLeay 0.9.0 (the word based version is faster anyway), and clean up
+ the comments.
+ [Ulf Möller]
+
+ *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
+ made it impossible to use the same SSL_SESSION data structure in
+ SSL2 clients in multiple threads.
+ [Bodo Moeller]
+
+ *) The return value of RAND_load_file() no longer counts bytes obtained
+ by stat(). RAND_load_file(..., -1) is new and uses the complete file
+ to seed the PRNG (previously an explicit byte count was required).
+ [Ulf Möller, Bodo Möller]
+
+ *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
+ used (char *) instead of (void *) and had casts all over the place.
+ [Steve Henson]
+
+ *) Make BN_generate_prime() return NULL on error if ret!=NULL.
+ [Ulf Möller]
+
+ *) Retain source code compatibility for BN_prime_checks macro:
+ BN_is_prime(..., BN_prime_checks, ...) now uses
+ BN_prime_checks_for_size to determine the appropriate number of
+ Rabin-Miller iterations.
+ [Ulf Möller]
+
+ *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
+ DH_CHECK_P_NOT_SAFE_PRIME.
+ (Check if this is true? OpenPGP calls them "strong".)
+ [Ulf Möller]
+
+ *) Merge the functionality of "dh" and "gendh" programs into a new program
+ "dhparam". The old programs are retained for now but will handle DH keys
+ (instead of parameters) in future.
+ [Steve Henson]
+
+ *) Make the ciphers, s_server and s_client programs check the return values
+ when a new cipher list is set.
+ [Steve Henson]
+
+ *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
+ ciphers. Before when the 56bit ciphers were enabled the sorting was
+ wrong.
+
+ The syntax for the cipher sorting has been extended to support sorting by
+ cipher-strength (using the strength_bits hard coded in the tables).
+ The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
+
+ Fix a bug in the cipher-command parser: when supplying a cipher command
+ string with an "undefined" symbol (neither command nor alphanumeric
+ [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
+ an error is flagged.
+
+ Due to the strength-sorting extension, the code of the
+ ssl_create_cipher_list() function was completely rearranged. I hope that
+ the readability was also increased :-)
+ [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
+
+ *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
+ for the first serial number and places 2 in the serial number file. This
+ avoids problems when the root CA is created with serial number zero and
+ the first user certificate has the same issuer name and serial number
+ as the root CA.
+ [Steve Henson]
+
+ *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
+ the new code. Add documentation for this stuff.
+ [Steve Henson]
+
+ *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
+ X509_*() to X509at_*() on the grounds that they don't handle X509
+ structures and behave in an analagous way to the X509v3 functions:
+ they shouldn't be called directly but wrapper functions should be used
+ instead.
+
+ So we also now have some wrapper functions that call the X509at functions
+ when passed certificate requests. (TO DO: similar things can be done with
+ PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
+ things. Some of these need some d2i or i2d and print functionality
+ because they handle more complex structures.)
+ [Steve Henson]
+
+ *) Add missing #ifndefs that caused missing symbols when building libssl
+ as a shared library without RSA. Use #ifndef NO_SSL2 instead of
+ NO_RSA in ssl/s2*.c.
+ [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
+
+ *) Precautions against using the PRNG uninitialized: RAND_bytes() now
+ has a return value which indicates the quality of the random data
+ (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
+ error queue. New function RAND_pseudo_bytes() generates output that is
+ guaranteed to be unique but not unpredictable. RAND_add is like
+ RAND_seed, but takes an extra argument for an entropy estimate
+ (RAND_seed always assumes full entropy).
+ [Ulf Möller]
+
+ *) Do more iterations of Rabin-Miller probable prime test (specifically,
+ 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
+ instead of only 2 for all lengths; see BN_prime_checks_for_size definition
+ in crypto/bn/bn_prime.c for the complete table). This guarantees a
+ false-positive rate of at most 2^-80 for random input.
+ [Bodo Moeller]
+
+ *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
+ [Bodo Moeller]
+
+ *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
+ in the 0.9.5 release), this returns the chain
+ from an X509_CTX structure with a dup of the stack and all
+ the X509 reference counts upped: so the stack will exist
+ after X509_CTX_cleanup() has been called. Modify pkcs12.c
+ to use this.
+
+ Also make SSL_SESSION_print() print out the verify return
+ code.
+ [Steve Henson]
+
+ *) Add manpage for the pkcs12 command. Also change the default
+ behaviour so MAC iteration counts are used unless the new
+ -nomaciter option is used. This improves file security and
+ only older versions of MSIE (4.0 for example) need it.
+ [Steve Henson]
+
+ *) Honor the no-xxx Configure options when creating .DEF files.
+ [Ulf Möller]
+
+ *) Add PKCS#10 attributes to field table: challengePassword,
+ unstructuredName and unstructuredAddress. These are taken from
+ draft PKCS#9 v2.0 but are compatible with v1.2 provided no
+ international characters are used.
+
+ More changes to X509_ATTRIBUTE code: allow the setting of types
+ based on strings. Remove the 'loc' parameter when adding
+ attributes because these will be a SET OF encoding which is sorted
+ in ASN1 order.
+ [Steve Henson]
+
+ *) Initial changes to the 'req' utility to allow request generation
+ automation. This will allow an application to just generate a template
+ file containing all the field values and have req construct the
+ request.
+
+ Initial support for X509_ATTRIBUTE handling. Stacks of these are
+ used all over the place including certificate requests and PKCS#7
+ structures. They are currently handled manually where necessary with
+ some primitive wrappers for PKCS#7. The new functions behave in a
+ manner analogous to the X509 extension functions: they allow
+ attributes to be looked up by NID and added.
+
+ Later something similar to the X509V3 code would be desirable to
+ automatically handle the encoding, decoding and printing of the
+ more complex types. The string types like challengePassword can
+ be handled by the string table functions.
+
+ Also modified the multi byte string table handling. Now there is
+ a 'global mask' which masks out certain types. The table itself
+ can use the flag STABLE_NO_MASK to ignore the mask setting: this
+ is useful when for example there is only one permissible type
+ (as in countryName) and using the mask might result in no valid
+ types at all.
+ [Steve Henson]
+
+ *) Clean up 'Finished' handling, and add functions SSL_get_finished and
+ SSL_get_peer_finished to allow applications to obtain the latest
+ Finished messages sent to the peer or expected from the peer,
+ respectively. (SSL_get_peer_finished is usually the Finished message
+ actually received from the peer, otherwise the protocol will be aborted.)
+
+ As the Finished message are message digests of the complete handshake
+ (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
+ be used for external authentication procedures when the authentication
+ provided by SSL/TLS is not desired or is not enough.
+ [Bodo Moeller]
+
+ *) Enhanced support for Alpha Linux is added. Now ./config checks if
+ the host supports BWX extension and if Compaq C is present on the
+ $PATH. Just exploiting of the BWX extension results in 20-30%
+ performance kick for some algorithms, e.g. DES and RC4 to mention
+ a couple. Compaq C in turn generates ~20% faster code for MD5 and
+ SHA1.
+ [Andy Polyakov]
+
+ *) Add support for MS "fast SGC". This is arguably a violation of the
+ SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
+ weak crypto and after checking the certificate is SGC a second one
+ with strong crypto. MS SGC stops the first handshake after receiving
+ the server certificate message and sends a second client hello. Since
+ a server will typically do all the time consuming operations before
+ expecting any further messages from the client (server key exchange
+ is the most expensive) there is little difference between the two.
+
+ To get OpenSSL to support MS SGC we have to permit a second client
+ hello message after we have sent server done. In addition we have to
+ reset the MAC if we do get this second client hello.
+ [Steve Henson]
+
+ *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
+ if a DER encoded private key is RSA or DSA traditional format. Changed
+ d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
+ format DER encoded private key. Newer code should use PKCS#8 format which
+ has the key type encoded in the ASN1 structure. Added DER private key
+ support to pkcs8 application.
+ [Steve Henson]
+
+ *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
+ ciphersuites has been selected (as required by the SSL 3/TLS 1
+ specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
+ is set, we interpret this as a request to violate the specification
+ (the worst that can happen is a handshake failure, and 'correct'
+ behaviour would result in a handshake failure anyway).
+ [Bodo Moeller]
+
+ *) In SSL_CTX_add_session, take into account that there might be multiple
+ SSL_SESSION structures with the same session ID (e.g. when two threads
+ concurrently obtain them from an external cache).
+ The internal cache can handle only one SSL_SESSION with a given ID,
+ so if there's a conflict, we now throw out the old one to achieve
+ consistency.
+ [Bodo Moeller]
+
+ *) Add OIDs for idea and blowfish in CBC mode. This will allow both
+ to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
+ some routines that use cipher OIDs: some ciphers do not have OIDs
+ defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
+ example.
+ [Steve Henson]
+
+ *) Simplify the trust setting structure and code. Now we just have
+ two sequences of OIDs for trusted and rejected settings. These will
+ typically have values the same as the extended key usage extension
+ and any application specific purposes.
+
+ The trust checking code now has a default behaviour: it will just
+ check for an object with the same NID as the passed id. Functions can
+ be provided to override either the default behaviour or the behaviour
+ for a given id. SSL client, server and email already have functions
+ in place for compatibility: they check the NID and also return "trusted"
+ if the certificate is self signed.
+ [Steve Henson]
+
+ *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
+ traditional format into an EVP_PKEY structure.
+ [Steve Henson]
+
+ *) Add a password callback function PEM_cb() which either prompts for
+ a password if usr_data is NULL or otherwise assumes it is a null
+ terminated password. Allow passwords to be passed on command line
+ environment or config files in a few more utilities.
+ [Steve Henson]
+
+ *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
+ keys. Add some short names for PKCS#8 PBE algorithms and allow them
+ to be specified on the command line for the pkcs8 and pkcs12 utilities.
+ Update documentation.
+ [Steve Henson]
+
+ *) Support for ASN1 "NULL" type. This could be handled before by using
+ ASN1_TYPE but there wasn't any function that would try to read a NULL
+ and produce an error if it couldn't. For compatibility we also have
+ ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
+ don't allocate anything because they don't need to.
+ [Steve Henson]
+
+ *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
+ for details.
+ [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
+
+ *) Rebuild of the memory allocation routines used by OpenSSL code and
+ possibly others as well. The purpose is to make an interface that
+ provide hooks so anyone can build a separate set of allocation and
+ deallocation routines to be used by OpenSSL, for example memory
+ pool implementations, or something else, which was previously hard
+ since Malloc(), Realloc() and Free() were defined as macros having
+ the values malloc, realloc and free, respectively (except for Win32
+ compilations). The same is provided for memory debugging code.
+ OpenSSL already comes with functionality to find memory leaks, but
+ this gives people a chance to debug other memory problems.
+
+ With these changes, a new set of functions and macros have appeared:
+
+ CRYPTO_set_mem_debug_functions() [F]
+ CRYPTO_get_mem_debug_functions() [F]
+ CRYPTO_dbg_set_options() [F]
+ CRYPTO_dbg_get_options() [F]
+ CRYPTO_malloc_debug_init() [M]
+
+ The memory debug functions are NULL by default, unless the library
+ is compiled with CRYPTO_MDEBUG or friends is defined. If someone
+ wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
+ gives the standard debugging functions that come with OpenSSL) or
+ CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
+ provided by the library user) must be used. When the standard
+ debugging functions are used, CRYPTO_dbg_set_options can be used to
+ request additional information:
+ CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
+ the CRYPTO_MDEBUG_xxx macro when compiling the library.
+
+ Also, things like CRYPTO_set_mem_functions will always give the
+ expected result (the new set of functions is used for allocation
+ and deallocation) at all times, regardless of platform and compiler
+ options.
+
+ To finish it up, some functions that were never use in any other
+ way than through macros have a new API and new semantic:
+
+ CRYPTO_dbg_malloc()
+ CRYPTO_dbg_realloc()
+ CRYPTO_dbg_free()
+
+ All macros of value have retained their old syntax.
+ [Richard Levitte and Bodo Moeller]
+
+ *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
+ ordering of SMIMECapabilities wasn't in "strength order" and there
+ was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
+ algorithm.
+ [Steve Henson]
+
+ *) Some ASN1 types with illegal zero length encoding (INTEGER,
+ ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
+ [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
+
+ *) Merge in my S/MIME library for OpenSSL. This provides a simple
+ S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
+ functionality to handle multipart/signed properly) and a utility
+ called 'smime' to call all this stuff. This is based on code I
+ originally wrote for Celo who have kindly allowed it to be
+ included in OpenSSL.
+ [Steve Henson]
+
+ *) Add variants des_set_key_checked and des_set_key_unchecked of
+ des_set_key (aka des_key_sched). Global variable des_check_key
+ decides which of these is called by des_set_key; this way
+ des_check_key behaves as it always did, but applications and
+ the library itself, which was buggy for des_check_key == 1,
+ have a cleaner way to pick the version they need.
+ [Bodo Moeller]
+
+ *) New function PKCS12_newpass() which changes the password of a
+ PKCS12 structure.
+ [Steve Henson]
+
+ *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
+ dynamic mix. In both cases the ids can be used as an index into the
+ table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
+ functions so they accept a list of the field values and the
+ application doesn't need to directly manipulate the X509_TRUST
+ structure.
+ [Steve Henson]
+
+ *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
+ need initialising.
+ [Steve Henson]
+
+ *) Modify the way the V3 extension code looks up extensions. This now
+ works in a similar way to the object code: we have some "standard"
+ extensions in a static table which is searched with OBJ_bsearch()
+ and the application can add dynamic ones if needed. The file
+ crypto/x509v3/ext_dat.h now has the info: this file needs to be
+ updated whenever a new extension is added to the core code and kept
+ in ext_nid order. There is a simple program 'tabtest.c' which checks
+ this. New extensions are not added too often so this file can readily
+ be maintained manually.
+
+ There are two big advantages in doing things this way. The extensions
+ can be looked up immediately and no longer need to be "added" using
+ X509V3_add_standard_extensions(): this function now does nothing.
+ [Side note: I get *lots* of email saying the extension code doesn't
+ work because people forget to call this function]
+ Also no dynamic allocation is done unless new extensions are added:
+ so if we don't add custom extensions there is no need to call
+ X509V3_EXT_cleanup().
+ [Steve Henson]
+
+ *) Modify enc utility's salting as follows: make salting the default. Add a
+ magic header, so unsalted files fail gracefully instead of just decrypting
+ to garbage. This is because not salting is a big security hole, so people
+ should be discouraged from doing it.
+ [Ben Laurie]
+
+ *) Fixes and enhancements to the 'x509' utility. It allowed a message
+ digest to be passed on the command line but it only used this
+ parameter when signing a certificate. Modified so all relevant
+ operations are affected by the digest parameter including the
+ -fingerprint and -x509toreq options. Also -x509toreq choked if a
+ DSA key was used because it didn't fix the digest.
+ [Steve Henson]
+
+ *) Initial certificate chain verify code. Currently tests the untrusted
+ certificates for consistency with the verify purpose (which is set
+ when the X509_STORE_CTX structure is set up) and checks the pathlength.
+
+ There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
+ this is because it will reject chains with invalid extensions whereas
+ every previous version of OpenSSL and SSLeay made no checks at all.
+
+ Trust code: checks the root CA for the relevant trust settings. Trust
+ settings have an initial value consistent with the verify purpose: e.g.
+ if the verify purpose is for SSL client use it expects the CA to be
+ trusted for SSL client use. However the default value can be changed to
+ permit custom trust settings: one example of this would be to only trust
+ certificates from a specific "secure" set of CAs.
+
+ Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
+ which should be used for version portability: especially since the
+ verify structure is likely to change more often now.
+
+ SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
+ to set them. If not set then assume SSL clients will verify SSL servers
+ and vice versa.
+
+ Two new options to the verify program: -untrusted allows a set of
+ untrusted certificates to be passed in and -purpose which sets the
+ intended purpose of the certificate. If a purpose is set then the
+ new chain verify code is used to check extension consistency.
+ [Steve Henson]
+
+ *) Support for the authority information access extension.
+ [Steve Henson]
+
+ *) Modify RSA and DSA PEM read routines to transparently handle
+ PKCS#8 format private keys. New *_PUBKEY_* functions that handle
+ public keys in a format compatible with certificate
+ SubjectPublicKeyInfo structures. Unfortunately there were already
+ functions called *_PublicKey_* which used various odd formats so
+ these are retained for compatibility: however the DSA variants were
+ never in a public release so they have been deleted. Changed dsa/rsa
+ utilities to handle the new format: note no releases ever handled public
+ keys so we should be OK.
+
+ The primary motivation for this change is to avoid the same fiasco
+ that dogs private keys: there are several incompatible private key
+ formats some of which are standard and some OpenSSL specific and
+ require various evil hacks to allow partial transparent handling and
+ even then it doesn't work with DER formats. Given the option anything
+ other than PKCS#8 should be dumped: but the other formats have to
+ stay in the name of compatibility.
+
+ With public keys and the benefit of hindsight one standard format
+ is used which works with EVP_PKEY, RSA or DSA structures: though
+ it clearly returns an error if you try to read the wrong kind of key.
+
+ Added a -pubkey option to the 'x509' utility to output the public key.
+ Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
+ (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
+ EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
+ that do the same as the EVP_PKEY_assign_*() except they up the
+ reference count of the added key (they don't "swallow" the
+ supplied key).
+ [Steve Henson]
+
+ *) Fixes to crypto/x509/by_file.c the code to read in certificates and
+ CRLs would fail if the file contained no certificates or no CRLs:
+ added a new function to read in both types and return the number
+ read: this means that if none are read it will be an error. The
+ DER versions of the certificate and CRL reader would always fail
+ because it isn't possible to mix certificates and CRLs in DER format
+ without choking one or the other routine. Changed this to just read
+ a certificate: this is the best we can do. Also modified the code
+ in apps/verify.c to take notice of return codes: it was previously
+ attempting to read in certificates from NULL pointers and ignoring
+ any errors: this is one reason why the cert and CRL reader seemed
+ to work. It doesn't check return codes from the default certificate
+ routines: these may well fail if the certificates aren't installed.
+ [Steve Henson]
+
+ *) Code to support otherName option in GeneralName.
+ [Steve Henson]
+
+ *) First update to verify code. Change the verify utility
+ so it warns if it is passed a self signed certificate:
+ for consistency with the normal behaviour. X509_verify
+ has been modified to it will now verify a self signed
+ certificate if *exactly* the same certificate appears
+ in the store: it was previously impossible to trust a
+ single self signed certificate. This means that:
+ openssl verify ss.pem
+ now gives a warning about a self signed certificate but
+ openssl verify -CAfile ss.pem ss.pem
+ is OK.
+ [Steve Henson]
+
+ *) For servers, store verify_result in SSL_SESSION data structure
+ (and add it to external session representation).
+ This is needed when client certificate verifications fails,
+ but an application-provided verification callback (set by
+ SSL_CTX_set_cert_verify_callback) allows accepting the session
+ anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
+ but returns 1): When the session is reused, we have to set
+ ssl->verify_result to the appropriate error code to avoid
+ security holes.
+ [Bodo Moeller, problem pointed out by Lutz Jaenicke]
+
+ *) Fix a bug in the new PKCS#7 code: it didn't consider the
+ case in PKCS7_dataInit() where the signed PKCS7 structure
+ didn't contain any existing data because it was being created.
+ [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
+
+ *) Add a salt to the key derivation routines in enc.c. This
+ forms the first 8 bytes of the encrypted file. Also add a
+ -S option to allow a salt to be input on the command line.
+ [Steve Henson]
+
+ *) New function X509_cmp(). Oddly enough there wasn't a function
+ to compare two certificates. We do this by working out the SHA1
+ hash and comparing that. X509_cmp() will be needed by the trust
+ code.
+ [Steve Henson]
+
+ *) SSL_get1_session() is like SSL_get_session(), but increments
+ the reference count in the SSL_SESSION returned.
+ [Geoff Thorpe <geoff@eu.c2.net>]
+
+ *) Fix for 'req': it was adding a null to request attributes.
+ Also change the X509_LOOKUP and X509_INFO code to handle
+ certificate auxiliary information.
+ [Steve Henson]
+
+ *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
+ the 'enc' command.
+ [Steve Henson]
+
+ *) Add the possibility to add extra information to the memory leak
+ detecting output, to form tracebacks, showing from where each
+ allocation was originated: CRYPTO_push_info("constant string") adds
+ the string plus current file name and line number to a per-thread
+ stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
+ is like calling CYRPTO_pop_info() until the stack is empty.
+ Also updated memory leak detection code to be multi-thread-safe.
+ [Richard Levitte]
+
+ *) Add options -text and -noout to pkcs7 utility and delete the
+ encryption options which never did anything. Update docs.
+ [Steve Henson]
+
+ *) Add options to some of the utilities to allow the pass phrase
+ to be included on either the command line (not recommended on
+ OSes like Unix) or read from the environment. Update the
+ manpages and fix a few bugs.
+ [Steve Henson]
+
+ *) Add a few manpages for some of the openssl commands.
+ [Steve Henson]
+
+ *) Fix the -revoke option in ca. It was freeing up memory twice,
+ leaking and not finding already revoked certificates.
+ [Steve Henson]
+
+ *) Extensive changes to support certificate auxiliary information.
+ This involves the use of X509_CERT_AUX structure and X509_AUX
+ functions. An X509_AUX function such as PEM_read_X509_AUX()
+ can still read in a certificate file in the usual way but it
+ will also read in any additional "auxiliary information". By
+ doing things this way a fair degree of compatibility can be
+ retained: existing certificates can have this information added
+ using the new 'x509' options.
+
+ Current auxiliary information includes an "alias" and some trust
+ settings. The trust settings will ultimately be used in enhanced
+ certificate chain verification routines: currently a certificate
+ can only be trusted if it is self signed and then it is trusted
+ for all purposes.
+ [Steve Henson]
+
+ *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
+ The problem was that one of the replacement routines had not been working
+ since SSLeay releases. For now the offending routine has been replaced
+ with non-optimised assembler. Even so, this now gives around 95%
+ performance improvement for 1024 bit RSA signs.
+ [Mark Cox]
+
+ *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
+ handling. Most clients have the effective key size in bits equal to
+ the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
+ A few however don't do this and instead use the size of the decrypted key
+ to determine the RC2 key length and the AlgorithmIdentifier to determine
+ the effective key length. In this case the effective key length can still
+ be 40 bits but the key length can be 168 bits for example. This is fixed
+ by manually forcing an RC2 key into the EVP_PKEY structure because the
+ EVP code can't currently handle unusual RC2 key sizes: it always assumes
+ the key length and effective key length are equal.
+ [Steve Henson]
+
+ *) Add a bunch of functions that should simplify the creation of
+ X509_NAME structures. Now you should be able to do:
+ X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
+ and have it automatically work out the correct field type and fill in
+ the structures. The more adventurous can try:
+ X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
+ and it will (hopefully) work out the correct multibyte encoding.
+ [Steve Henson]
+
+ *) Change the 'req' utility to use the new field handling and multibyte
+ copy routines. Before the DN field creation was handled in an ad hoc
+ way in req, ca, and x509 which was rather broken and didn't support
+ BMPStrings or UTF8Strings. Since some software doesn't implement
+ BMPStrings or UTF8Strings yet, they can be enabled using the config file
+ using the dirstring_type option. See the new comment in the default
+ openssl.cnf for more info.
+ [Steve Henson]
+
+ *) Make crypto/rand/md_rand.c more robust:
+ - Assure unique random numbers after fork().
+ - Make sure that concurrent threads access the global counter and
+ md serializably so that we never lose entropy in them
+ or use exactly the same state in multiple threads.
+ Access to the large state is not always serializable because
+ the additional locking could be a performance killer, and
+ md should be large enough anyway.
+ [Bodo Moeller]
+
+ *) New file apps/app_rand.c with commonly needed functionality
+ for handling the random seed file.
+
+ Use the random seed file in some applications that previously did not:
+ ca,
+ dsaparam -genkey (which also ignored its '-rand' option),
+ s_client,
+ s_server,
+ x509 (when signing).
+ Except on systems with /dev/urandom, it is crucial to have a random
+ seed file at least for key creation, DSA signing, and for DH exchanges;
+ for RSA signatures we could do without one.
+
+ gendh and gendsa (unlike genrsa) used to read only the first byte
+ of each file listed in the '-rand' option. The function as previously
+ found in genrsa is now in app_rand.c and is used by all programs
+ that support '-rand'.
+ [Bodo Moeller]
+
+ *) In RAND_write_file, use mode 0600 for creating files;
+ don't just chmod when it may be too late.
+ [Bodo Moeller]
+
+ *) Report an error from X509_STORE_load_locations
+ when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
+ [Bill Perry]
+
+ *) New function ASN1_mbstring_copy() this copies a string in either
+ ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
+ into an ASN1_STRING type. A mask of permissible types is passed
+ and it chooses the "minimal" type to use or an error if not type
+ is suitable.
+ [Steve Henson]
+
+ *) Add function equivalents to the various macros in asn1.h. The old
+ macros are retained with an M_ prefix. Code inside the library can
+ use the M_ macros. External code (including the openssl utility)
+ should *NOT* in order to be "shared library friendly".
+ [Steve Henson]
+
+ *) Add various functions that can check a certificate's extensions
+ to see if it usable for various purposes such as SSL client,
+ server or S/MIME and CAs of these types. This is currently
+ VERY EXPERIMENTAL but will ultimately be used for certificate chain
+ verification. Also added a -purpose flag to x509 utility to
+ print out all the purposes.
+ [Steve Henson]
+
+ *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
+ functions.
+ [Steve Henson]
+
+ *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
+ for, obtain and decode and extension and obtain its critical flag.
+ This allows all the necessary extension code to be handled in a
+ single function call.
+ [Steve Henson]
+
+ *) RC4 tune-up featuring 30-40% performance improvement on most RISC
+ platforms. See crypto/rc4/rc4_enc.c for further details.
+ [Andy Polyakov]
+
+ *) New -noout option to asn1parse. This causes no output to be produced
+ its main use is when combined with -strparse and -out to extract data
+ from a file (which may not be in ASN.1 format).
+ [Steve Henson]
+
+ *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
+ when producing the local key id.
+ [Richard Levitte <levitte@stacken.kth.se>]
+
+ *) New option -dhparam in s_server. This allows a DH parameter file to be
+ stated explicitly. If it is not stated then it tries the first server
+ certificate file. The previous behaviour hard coded the filename
+ "server.pem".
+ [Steve Henson]
+
+ *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
+ a public key to be input or output. For example:
+ openssl rsa -in key.pem -pubout -out pubkey.pem
+ Also added necessary DSA public key functions to handle this.
+ [Steve Henson]
+
+ *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
+ in the message. This was handled by allowing
+ X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
+ [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
+
+ *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
+ to the end of the strings whereas this didn't. This would cause problems
+ if strings read with d2i_ASN1_bytes() were later modified.
+ [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
+
+ *) Fix for base64 decode bug. When a base64 bio reads only one line of
+ data and it contains EOF it will end up returning an error. This is
+ caused by input 46 bytes long. The cause is due to the way base64
+ BIOs find the start of base64 encoded data. They do this by trying a
+ trial decode on each line until they find one that works. When they
+ do a flag is set and it starts again knowing it can pass all the
+ data directly through the decoder. Unfortunately it doesn't reset
+ the context it uses. This means that if EOF is reached an attempt
+ is made to pass two EOFs through the context and this causes the
+ resulting error. This can also cause other problems as well. As is
+ usual with these problems it takes *ages* to find and the fix is
+ trivial: move one line.
+ [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
+
+ *) Ugly workaround to get s_client and s_server working under Windows. The
+ old code wouldn't work because it needed to select() on sockets and the
+ tty (for keypresses and to see if data could be written). Win32 only
+ supports select() on sockets so we select() with a 1s timeout on the
+ sockets and then see if any characters are waiting to be read, if none
+ are present then we retry, we also assume we can always write data to
+ the tty. This isn't nice because the code then blocks until we've
+ received a complete line of data and it is effectively polling the
+ keyboard at 1s intervals: however it's quite a bit better than not
+ working at all :-) A dedicated Windows application might handle this
+ with an event loop for example.
+ [Steve Henson]
+
+ *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
+ and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
+ will be called when RSA_sign() and RSA_verify() are used. This is useful
+ if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
+ For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
+ should *not* be used: RSA_sign() and RSA_verify() must be used instead.
+ This necessitated the support of an extra signature type NID_md5_sha1
+ for SSL signatures and modifications to the SSL library to use it instead
+ of calling RSA_public_decrypt() and RSA_private_encrypt().
+ [Steve Henson]
+
+ *) Add new -verify -CAfile and -CApath options to the crl program, these
+ will lookup a CRL issuers certificate and verify the signature in a
+ similar way to the verify program. Tidy up the crl program so it
+ no longer accesses structures directly. Make the ASN1 CRL parsing a bit
+ less strict. It will now permit CRL extensions even if it is not
+ a V2 CRL: this will allow it to tolerate some broken CRLs.
+ [Steve Henson]
+
+ *) Initialize all non-automatic variables each time one of the openssl
+ sub-programs is started (this is necessary as they may be started
+ multiple times from the "OpenSSL>" prompt).
+ [Lennart Bang, Bodo Moeller]
+
+ *) Preliminary compilation option RSA_NULL which disables RSA crypto without
+ removing all other RSA functionality (this is what NO_RSA does). This
+ is so (for example) those in the US can disable those operations covered
+ by the RSA patent while allowing storage and parsing of RSA keys and RSA
+ key generation.
+ [Steve Henson]
+
+ *) Non-copying interface to BIO pairs.
+ (still largely untested)
+ [Bodo Moeller]
+
+ *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
+ ASCII string. This was handled independently in various places before.
+ [Steve Henson]
+
+ *) New functions UTF8_getc() and UTF8_putc() that parse and generate
+ UTF8 strings a character at a time.
+ [Steve Henson]
+
+ *) Use client_version from client hello to select the protocol
+ (s23_srvr.c) and for RSA client key exchange verification
+ (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
+ [Bodo Moeller]
+
+ *) Add various utility functions to handle SPKACs, these were previously
+ handled by poking round in the structure internals. Added new function
+ NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
+ print, verify and generate SPKACs. Based on an original idea from
+ Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
+ [Steve Henson]
+
+ *) RIPEMD160 is operational on all platforms and is back in 'make test'.
+ [Andy Polyakov]
+
+ *) Allow the config file extension section to be overwritten on the
+ command line. Based on an original idea from Massimiliano Pala
+ <madwolf@comune.modena.it>. The new option is called -extensions
+ and can be applied to ca, req and x509. Also -reqexts to override
+ the request extensions in req and -crlexts to override the crl extensions
+ in ca.
+ [Steve Henson]
+
+ *) Add new feature to the SPKAC handling in ca. Now you can include
+ the same field multiple times by preceding it by "XXXX." for example:
+ 1.OU="Unit name 1"
+ 2.OU="Unit name 2"
+ this is the same syntax as used in the req config file.
+ [Steve Henson]
+
+ *) Allow certificate extensions to be added to certificate requests. These
+ are specified in a 'req_extensions' option of the req section of the
+ config file. They can be printed out with the -text option to req but
+ are otherwise ignored at present.
+ [Steve Henson]
+
+ *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
+ data read consists of only the final block it would not decrypted because
+ EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
+ A misplaced 'break' also meant the decrypted final block might not be
+ copied until the next read.
+ [Steve Henson]
+
+ *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
+ a few extra parameters to the DH structure: these will be useful if
+ for example we want the value of 'q' or implement X9.42 DH.
+ [Steve Henson]
+
+ *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
+ provides hooks that allow the default DSA functions or functions on a
+ "per key" basis to be replaced. This allows hardware acceleration and
+ hardware key storage to be handled without major modification to the
+ library. Also added low level modexp hooks and CRYPTO_EX structure and
+ associated functions.
+ [Steve Henson]
+
+ *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
+ as "read only": it can't be written to and the buffer it points to will
+ not be freed. Reading from a read only BIO is much more efficient than
+ a normal memory BIO. This was added because there are several times when
+ an area of memory needs to be read from a BIO. The previous method was
+ to create a memory BIO and write the data to it, this results in two
+ copies of the data and an O(n^2) reading algorithm. There is a new
+ function BIO_new_mem_buf() which creates a read only memory BIO from
+ an area of memory. Also modified the PKCS#7 routines to use read only
+ memory BIOs.
+ [Steve Henson]
+
+ *) Bugfix: ssl23_get_client_hello did not work properly when called in
+ state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
+ a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
+ but a retry condition occured while trying to read the rest.
+ [Bodo Moeller]
+
+ *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
+ NID_pkcs7_encrypted by default: this was wrong since this should almost
+ always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
+ the encrypted data type: this is a more sensible place to put it and it
+ allows the PKCS#12 code to be tidied up that duplicated this
+ functionality.
+ [Steve Henson]
+
+ *) Changed obj_dat.pl script so it takes its input and output files on
+ the command line. This should avoid shell escape redirection problems
+ under Win32.
+ [Steve Henson]
+
+ *) Initial support for certificate extension requests, these are included
+ in things like Xenroll certificate requests. Included functions to allow
+ extensions to be obtained and added.
+ [Steve Henson]
+
+ *) -crlf option to s_client and s_server for sending newlines as
+ CRLF (as required by many protocols).
+ [Bodo Moeller]
+
+ Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
+
+ *) Install libRSAglue.a when OpenSSL is built with RSAref.
+ [Ralf S. Engelschall]
+
+ *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
+ [Andrija Antonijevic <TheAntony2@bigfoot.com>]
+
+ *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
+ program.
+ [Steve Henson]
+
+ *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
+ DH parameters/keys (q is lost during that conversion, but the resulting
+ DH parameters contain its length).
+
+ For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
+ much faster than DH_generate_parameters (which creates parameters
+ where p = 2*q + 1), and also the smaller q makes DH computations
+ much more efficient (160-bit exponentiation instead of 1024-bit
+ exponentiation); so this provides a convenient way to support DHE
+ ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
+ utter importance to use
+ SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
+ or
+ SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
+ when such DH parameters are used, because otherwise small subgroup
+ attacks may become possible!
+ [Bodo Moeller]
+
+ *) Avoid memory leak in i2d_DHparams.
+ [Bodo Moeller]
+
+ *) Allow the -k option to be used more than once in the enc program:
+ this allows the same encrypted message to be read by multiple recipients.
+ [Steve Henson]
+
+ *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
+ an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
+ it will always use the numerical form of the OID, even if it has a short
+ or long name.
+ [Steve Henson]
+
+ *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
+ method only got called if p,q,dmp1,dmq1,iqmp components were present,
+ otherwise bn_mod_exp was called. In the case of hardware keys for example
+ no private key components need be present and it might store extra data
+ in the RSA structure, which cannot be accessed from bn_mod_exp.
+ By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
+ private key operations.
+ [Steve Henson]
+
+ *) Added support for SPARC Linux.
+ [Andy Polyakov]
+
+ *) pem_password_cb function type incompatibly changed from
+ typedef int pem_password_cb(char *buf, int size, int rwflag);
+ to
+ ....(char *buf, int size, int rwflag, void *userdata);
+ so that applications can pass data to their callbacks:
+ The PEM[_ASN1]_{read,write}... functions and macros now take an
+ additional void * argument, which is just handed through whenever
+ the password callback is called.
+ [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
+
+ New function SSL_CTX_set_default_passwd_cb_userdata.
+
+ Compatibility note: As many C implementations push function arguments
+ onto the stack in reverse order, the new library version is likely to
+ interoperate with programs that have been compiled with the old
+ pem_password_cb definition (PEM_whatever takes some data that
+ happens to be on the stack as its last argument, and the callback
+ just ignores this garbage); but there is no guarantee whatsoever that
+ this will work.
+
+ *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
+ (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
+ problems not only on Windows, but also on some Unix platforms.
+ To avoid problematic command lines, these definitions are now in an
+ auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
+ for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
+ [Bodo Moeller]
+
+ *) MIPS III/IV assembler module is reimplemented.
+ [Andy Polyakov]
+
+ *) More DES library cleanups: remove references to srand/rand and
+ delete an unused file.
+ [Ulf Möller]
+
+ *) Add support for the the free Netwide assembler (NASM) under Win32,
+ since not many people have MASM (ml) and it can be hard to obtain.
+ This is currently experimental but it seems to work OK and pass all
+ the tests. Check out INSTALL.W32 for info.
+ [Steve Henson]
+
+ *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
+ without temporary keys kept an extra copy of the server key,
+ and connections with temporary keys did not free everything in case
+ of an error.
+ [Bodo Moeller]
+
+ *) New function RSA_check_key and new openssl rsa option -check
+ for verifying the consistency of RSA keys.
+ [Ulf Moeller, Bodo Moeller]
+
+ *) Various changes to make Win32 compile work:
+ 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
+ 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
+ comparison" warnings.
+ 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
+ [Steve Henson]
+
+ *) Add a debugging option to PKCS#5 v2 key generation function: when
+ you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
+ derived keys are printed to stderr.
+ [Steve Henson]
+
+ *) Copy the flags in ASN1_STRING_dup().
+ [Roman E. Pavlov <pre@mo.msk.ru>]
+
+ *) The x509 application mishandled signing requests containing DSA
+ keys when the signing key was also DSA and the parameters didn't match.
+
+ It was supposed to omit the parameters when they matched the signing key:
+ the verifying software was then supposed to automatically use the CA's
+ parameters if they were absent from the end user certificate.
+
+ Omitting parameters is no longer recommended. The test was also
+ the wrong way round! This was probably due to unusual behaviour in
+ EVP_cmp_parameters() which returns 1 if the parameters match.
+ This meant that parameters were omitted when they *didn't* match and
+ the certificate was useless. Certificates signed with 'ca' didn't have
+ this bug.
+ [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
+
+ *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
+ The interface is as follows:
+ Applications can use
+ CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
+ CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
+ "off" is now the default.
+ The library internally uses
+ CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
+ CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
+ to disable memory-checking temporarily.
+
+ Some inconsistent states that previously were possible (and were
+ even the default) are now avoided.
+
+ -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
+ with each memory chunk allocated; this is occasionally more helpful
+ than just having a counter.
+
+ -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
+
+ -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
+ extensions.
+ [Bodo Moeller]
+
+ *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
+ which largely parallels "options", but is for changing API behaviour,
+ whereas "options" are about protocol behaviour.
+ Initial "mode" flags are:
+
+ SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
+ a single record has been written.
+ SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
+ retries use the same buffer location.
+ (But all of the contents must be
+ copied!)
+ [Bodo Moeller]
+
+ *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
+ worked.
+
+ *) Fix problems with no-hmac etc.
+ [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
+
+ *) New functions RSA_get_default_method(), RSA_set_method() and
+ RSA_get_method(). These allows replacement of RSA_METHODs without having
+ to mess around with the internals of an RSA structure.
+ [Steve Henson]
+
+ *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
+ Also really enable memory leak checks in openssl.c and in some
+ test programs.
+ [Chad C. Mulligan, Bodo Moeller]
+
+ *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
+ up the length of negative integers. This has now been simplified to just
+ store the length when it is first determined and use it later, rather
+ than trying to keep track of where data is copied and updating it to
+ point to the end.
+ [Steve Henson, reported by Brien Wheeler
+ <bwheeler@authentica-security.com>]
+
+ *) Add a new function PKCS7_signatureVerify. This allows the verification
+ of a PKCS#7 signature but with the signing certificate passed to the
+ function itself. This contrasts with PKCS7_dataVerify which assumes the
+ certificate is present in the PKCS#7 structure. This isn't always the
+ case: certificates can be omitted from a PKCS#7 structure and be
+ distributed by "out of band" means (such as a certificate database).
+ [Steve Henson]
+
+ *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
+ function prototypes in pem.h, also change util/mkdef.pl to add the
+ necessary function names.
+ [Steve Henson]
+
+ *) mk1mf.pl (used by Windows builds) did not properly read the
+ options set by Configure in the top level Makefile, and Configure
+ was not even able to write more than one option correctly.
+ Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
+ [Bodo Moeller]
+
+ *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
+ file to be loaded from a BIO or FILE pointer. The BIO version will
+ for example allow memory BIOs to contain config info.
+ [Steve Henson]
+
+ *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
+ Whoever hopes to achieve shared-library compatibility across versions
+ must use this, not the compile-time macro.
+ (Exercise 0.9.4: Which is the minimum library version required by
+ such programs?)
+ Note: All this applies only to multi-threaded programs, others don't
+ need locks.
+ [Bodo Moeller]
+
+ *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
+ through a BIO pair triggered the default case, i.e.
+ SSLerr(...,SSL_R_UNKNOWN_STATE).
+ [Bodo Moeller]
+
+ *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
+ can use the SSL library even if none of the specific BIOs is
+ appropriate.
+ [Bodo Moeller]
+
+ *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
+ for the encoded length.
+ [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
+
+ *) Add initial documentation of the X509V3 functions.
+ [Steve Henson]
+
+ *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
+ PEM_write_bio_PKCS8PrivateKey() that are equivalent to
+ PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
+ secure PKCS#8 private key format with a high iteration count.
+ [Steve Henson]
+
+ *) Fix determination of Perl interpreter: A perl or perl5
+ _directory_ in $PATH was also accepted as the interpreter.
+ [Ralf S. Engelschall]
+
+ *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
+ wrong with it but it was very old and did things like calling
+ PEM_ASN1_read() directly and used MD5 for the hash not to mention some
+ unusual formatting.
+ [Steve Henson]
+
+ *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
+ to use the new extension code.
+ [Steve Henson]
+
+ *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
+ with macros. This should make it easier to change their form, add extra
+ arguments etc. Fix a few PEM prototypes which didn't have cipher as a
+ constant.
+ [Steve Henson]
+
+ *) Add to configuration table a new entry that can specify an alternative
+ name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
+ according to Mark Crispin <MRC@Panda.COM>.
+ [Bodo Moeller]
+
+#if 0
+ *) DES CBC did not update the IV. Weird.
+ [Ben Laurie]
+#else
+ des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
+ Changing the behaviour of the former might break existing programs --
+ where IV updating is needed, des_ncbc_encrypt can be used.
+#endif
+
+ *) When bntest is run from "make test" it drives bc to check its
+ calculations, as well as internally checking them. If an internal check
+ fails, it needs to cause bc to give a non-zero result or make test carries
+ on without noticing the failure. Fixed.
+ [Ben Laurie]
+
+ *) DES library cleanups.
+ [Ulf Möller]
+
+ *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
+ used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
+ ciphers. NOTE: although the key derivation function has been verified
+ against some published test vectors it has not been extensively tested
+ yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
+ of v2.0.
+ [Steve Henson]
+
+ *) Instead of "mkdir -p", which is not fully portable, use new
+ Perl script "util/mkdir-p.pl".
+ [Bodo Moeller]
+
+ *) Rewrite the way password based encryption (PBE) is handled. It used to
+ assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
+ structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
+ but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
+ the 'parameter' field of the AlgorithmIdentifier is passed to the
+ underlying key generation function so it must do its own ASN1 parsing.
+ This has also changed the EVP_PBE_CipherInit() function which now has a
+ 'parameter' argument instead of literal salt and iteration count values
+ and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
+ [Steve Henson]
+
+ *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
+ and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
+ Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
+ KEY" because this clashed with PKCS#8 unencrypted string. Since this
+ value was just used as a "magic string" and not used directly its
+ value doesn't matter.
+ [Steve Henson]
+
+ *) Introduce some semblance of const correctness to BN. Shame C doesn't
+ support mutable.
+ [Ben Laurie]
+
+ *) "linux-sparc64" configuration (ultrapenguin).
+ [Ray Miller <ray.miller@oucs.ox.ac.uk>]
+ "linux-sparc" configuration.
+ [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
+
+ *) config now generates no-xxx options for missing ciphers.
+ [Ulf Möller]
+
+ *) Support the EBCDIC character set (work in progress).
+ File ebcdic.c not yet included because it has a different license.
+ [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
+
+ *) Support BS2000/OSD-POSIX.
+ [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
+
+ *) Make callbacks for key generation use void * instead of char *.
+ [Ben Laurie]
+
+ *) Make S/MIME samples compile (not yet tested).
+ [Ben Laurie]
+
+ *) Additional typesafe stacks.
+ [Ben Laurie]
+
+ *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
+ [Bodo Moeller]
+
+
+ Changes between 0.9.3 and 0.9.3a [29 May 1999]
+
+ *) New configuration variant "sco5-gcc".
+
+ *) Updated some demos.
+ [Sean O Riordain, Wade Scholine]
+
+ *) Add missing BIO_free at exit of pkcs12 application.
+ [Wu Zhigang]
+
+ *) Fix memory leak in conf.c.
+ [Steve Henson]
+
+ *) Updates for Win32 to assembler version of MD5.
+ [Steve Henson]
+
+ *) Set #! path to perl in apps/der_chop to where we found it
+ instead of using a fixed path.
+ [Bodo Moeller]
+
+ *) SHA library changes for irix64-mips4-cc.
+ [Andy Polyakov]
+
+ *) Improvements for VMS support.
+ [Richard Levitte]
+
+
+ Changes between 0.9.2b and 0.9.3 [24 May 1999]
+
+ *) Bignum library bug fix. IRIX 6 passes "make test" now!
+ This also avoids the problems with SC4.2 and unpatched SC5.
+ [Andy Polyakov <appro@fy.chalmers.se>]
+
+ *) New functions sk_num, sk_value and sk_set to replace the previous macros.
+ These are required because of the typesafe stack would otherwise break
+ existing code. If old code used a structure member which used to be STACK
+ and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
+ sk_num or sk_value it would produce an error because the num, data members
+ are not present in STACK_OF. Now it just produces a warning. sk_set
+ replaces the old method of assigning a value to sk_value
+ (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
+ that does this will no longer work (and should use sk_set instead) but
+ this could be regarded as a "questionable" behaviour anyway.
+ [Steve Henson]
+
+ *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
+ correctly handle encrypted S/MIME data.
+ [Steve Henson]
+
+ *) Change type of various DES function arguments from des_cblock
+ (which means, in function argument declarations, pointer to char)
+ to des_cblock * (meaning pointer to array with 8 char elements),
+ which allows the compiler to do more typechecking; it was like
+ that back in SSLeay, but with lots of ugly casts.
+
+ Introduce new type const_des_cblock.
+ [Bodo Moeller]
+
+ *) Reorganise the PKCS#7 library and get rid of some of the more obvious
+ problems: find RecipientInfo structure that matches recipient certificate
+ and initialise the ASN1 structures properly based on passed cipher.
+ [Steve Henson]
+
+ *) Belatedly make the BN tests actually check the results.
+ [Ben Laurie]
+
+ *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
+ to and from BNs: it was completely broken. New compilation option
+ NEG_PUBKEY_BUG to allow for some broken certificates that encode public
+ key elements as negative integers.
+ [Steve Henson]
+
+ *) Reorganize and speed up MD5.
+ [Andy Polyakov <appro@fy.chalmers.se>]
+
+ *) VMS support.
+ [Richard Levitte <richard@levitte.org>]
+
+ *) New option -out to asn1parse to allow the parsed structure to be
+ output to a file. This is most useful when combined with the -strparse
+ option to examine the output of things like OCTET STRINGS.
+ [Steve Henson]
+
+ *) Make SSL library a little more fool-proof by not requiring any longer
+ that SSL_set_{accept,connect}_state be called before
+ SSL_{accept,connect} may be used (SSL_set_..._state is omitted
+ in many applications because usually everything *appeared* to work as
+ intended anyway -- now it really works as intended).
+ [Bodo Moeller]
+
+ *) Move openssl.cnf out of lib/.
+ [Ulf Möller]
+
+ *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
+ -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
+ -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
+ [Ralf S. Engelschall]
+
+ *) Various fixes to the EVP and PKCS#7 code. It may now be able to
+ handle PKCS#7 enveloped data properly.
+ [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
+
+ *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
+ copying pointers. The cert_st handling is changed by this in
+ various ways (and thus what used to be known as ctx->default_cert
+ is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
+ any longer when s->cert does not give us what we need).
+ ssl_cert_instantiate becomes obsolete by this change.
+ As soon as we've got the new code right (possibly it already is?),
+ we have solved a couple of bugs of the earlier code where s->cert
+ was used as if it could not have been shared with other SSL structures.
+
+ Note that using the SSL API in certain dirty ways now will result
+ in different behaviour than observed with earlier library versions:
+ Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
+ does not influence s as it used to.
+
+ In order to clean up things more thoroughly, inside SSL_SESSION
+ we don't use CERT any longer, but a new structure SESS_CERT
+ that holds per-session data (if available); currently, this is
+ the peer's certificate chain and, for clients, the server's certificate
+ and temporary key. CERT holds only those values that can have
+ meaningful defaults in an SSL_CTX.
+ [Bodo Moeller]
+
+ *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
+ from the internal representation. Various PKCS#7 fixes: remove some
+ evil casts and set the enc_dig_alg field properly based on the signing
+ key type.
+ [Steve Henson]
+
+ *) Allow PKCS#12 password to be set from the command line or the
+ environment. Let 'ca' get its config file name from the environment
+ variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
+ and 'x509').
+ [Steve Henson]
+
+ *) Allow certificate policies extension to use an IA5STRING for the
+ organization field. This is contrary to the PKIX definition but
+ VeriSign uses it and IE5 only recognises this form. Document 'x509'
+ extension option.
+ [Steve Henson]
+
+ *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
+ without disallowing inline assembler and the like for non-pedantic builds.
+ [Ben Laurie]
+
+ *) Support Borland C++ builder.
+ [Janez Jere <jj@void.si>, modified by Ulf Möller]
+
+ *) Support Mingw32.
+ [Ulf Möller]
+
+ *) SHA-1 cleanups and performance enhancements.
+ [Andy Polyakov <appro@fy.chalmers.se>]
+
+ *) Sparc v8plus assembler for the bignum library.
+ [Andy Polyakov <appro@fy.chalmers.se>]
+
+ *) Accept any -xxx and +xxx compiler options in Configure.
+ [Ulf Möller]
+
+ *) Update HPUX configuration.
+ [Anonymous]
+
+ *) Add missing sk_<type>_unshift() function to safestack.h
+ [Ralf S. Engelschall]
+
+ *) New function SSL_CTX_use_certificate_chain_file that sets the
+ "extra_cert"s in addition to the certificate. (This makes sense
+ only for "PEM" format files, as chains as a whole are not
+ DER-encoded.)
+ [Bodo Moeller]
+
+ *) Support verify_depth from the SSL API.
+ x509_vfy.c had what can be considered an off-by-one-error:
+ Its depth (which was not part of the external interface)
+ was actually counting the number of certificates in a chain;
+ now it really counts the depth.
+ [Bodo Moeller]
+
+ *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
+ instead of X509err, which often resulted in confusing error
+ messages since the error codes are not globally unique
+ (e.g. an alleged error in ssl3_accept when a certificate
+ didn't match the private key).
+
+ *) New function SSL_CTX_set_session_id_context that allows to set a default
+ value (so that you don't need SSL_set_session_id_context for each
+ connection using the SSL_CTX).
+ [Bodo Moeller]
+
+ *) OAEP decoding bug fix.
+ [Ulf Möller]
+
+ *) Support INSTALL_PREFIX for package builders, as proposed by
+ David Harris.
+ [Bodo Moeller]
+
+ *) New Configure options "threads" and "no-threads". For systems
+ where the proper compiler options are known (currently Solaris
+ and Linux), "threads" is the default.
+ [Bodo Moeller]
+
+ *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
+ [Bodo Moeller]
+
+ *) Install various scripts to $(OPENSSLDIR)/misc, not to
+ $(INSTALLTOP)/bin -- they shouldn't clutter directories
+ such as /usr/local/bin.
+ [Bodo Moeller]
+
+ *) "make linux-shared" to build shared libraries.
+ [Niels Poppe <niels@netbox.org>]
+
+ *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
+ [Ulf Möller]
+
+ *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
+ extension adding in x509 utility.
+ [Steve Henson]
+
+ *) Remove NOPROTO sections and error code comments.
+ [Ulf Möller]
+
+ *) Partial rewrite of the DEF file generator to now parse the ANSI
+ prototypes.
+ [Steve Henson]
+
+ *) New Configure options --prefix=DIR and --openssldir=DIR.
+ [Ulf Möller]
+
+ *) Complete rewrite of the error code script(s). It is all now handled
+ by one script at the top level which handles error code gathering,
+ header rewriting and C source file generation. It should be much better
+ than the old method: it now uses a modified version of Ulf's parser to
+ read the ANSI prototypes in all header files (thus the old K&R definitions
+ aren't needed for error creation any more) and do a better job of
+ translating function codes into names. The old 'ASN1 error code imbedded
+ in a comment' is no longer necessary and it doesn't use .err files which
+ have now been deleted. Also the error code call doesn't have to appear all
+ on one line (which resulted in some large lines...).
+ [Steve Henson]
+
+ *) Change #include filenames from <foo.h> to <openssl/foo.h>.
+ [Bodo Moeller]
+
+ *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
+ 0 (which usually indicates a closed connection), but continue reading.
+ [Bodo Moeller]
+
+ *) Fix some race conditions.
+ [Bodo Moeller]
+
+ *) Add support for CRL distribution points extension. Add Certificate
+ Policies and CRL distribution points documentation.
+ [Steve Henson]
+
+ *) Move the autogenerated header file parts to crypto/opensslconf.h.
+ [Ulf Möller]
+
+ *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
+ 8 of keying material. Merlin has also confirmed interop with this fix
+ between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
+ [Merlin Hughes <merlin@baltimore.ie>]
+
+ *) Fix lots of warnings.
+ [Richard Levitte <levitte@stacken.kth.se>]
+
+ *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
+ the directory spec didn't end with a LIST_SEPARATOR_CHAR.
+ [Richard Levitte <levitte@stacken.kth.se>]
+
+ *) Fix problems with sizeof(long) == 8.
+ [Andy Polyakov <appro@fy.chalmers.se>]
+
+ *) Change functions to ANSI C.
+ [Ulf Möller]
+
+ *) Fix typos in error codes.
+ [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
+
+ *) Remove defunct assembler files from Configure.
+ [Ulf Möller]
+
+ *) SPARC v8 assembler BIGNUM implementation.
+ [Andy Polyakov <appro@fy.chalmers.se>]
+
+ *) Support for Certificate Policies extension: both print and set.
+ Various additions to support the r2i method this uses.
+ [Steve Henson]
+
+ *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
+ return a const string when you are expecting an allocated buffer.
+ [Ben Laurie]
+
+ *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
+ types DirectoryString and DisplayText.
+ [Steve Henson]
+
+ *) Add code to allow r2i extensions to access the configuration database,
+ add an LHASH database driver and add several ctx helper functions.
+ [Steve Henson]
+
+ *) Fix an evil bug in bn_expand2() which caused various BN functions to
+ fail when they extended the size of a BIGNUM.
+ [Steve Henson]
+
+ *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
+ support typesafe stack.
+ [Steve Henson]
+
+ *) Fix typo in SSL_[gs]et_options().
+ [Nils Frostberg <nils@medcom.se>]
+
+ *) Delete various functions and files that belonged to the (now obsolete)
+ old X509V3 handling code.
+ [Steve Henson]
+
+ *) New Configure option "rsaref".
+ [Ulf Möller]
+
+ *) Don't auto-generate pem.h.
+ [Bodo Moeller]
+
+ *) Introduce type-safe ASN.1 SETs.
+ [Ben Laurie]
+
+ *) Convert various additional casted stacks to type-safe STACK_OF() variants.
+ [Ben Laurie, Ralf S. Engelschall, Steve Henson]
+
+ *) Introduce type-safe STACKs. This will almost certainly break lots of code
+ that links with OpenSSL (well at least cause lots of warnings), but fear
+ not: the conversion is trivial, and it eliminates loads of evil casts. A
+ few STACKed things have been converted already. Feel free to convert more.
+ In the fullness of time, I'll do away with the STACK type altogether.
+ [Ben Laurie]
+
+ *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
+ specified in <certfile> by updating the entry in the index.txt file.
+ This way one no longer has to edit the index.txt file manually for
+ revoking a certificate. The -revoke option does the gory details now.
+ [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
+
+ *) Fix `openssl crl -noout -text' combination where `-noout' killed the
+ `-text' option at all and this way the `-noout -text' combination was
+ inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
+ [Ralf S. Engelschall]
+
+ *) Make sure a corresponding plain text error message exists for the
+ X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
+ verify callback function determined that a certificate was revoked.
+ [Ralf S. Engelschall]
+
+ *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
+ ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
+ all available cipers including rc5, which was forgotten until now.
+ In order to let the testing shell script know which algorithms
+ are available, a new (up to now undocumented) command
+ "openssl list-cipher-commands" is used.
+ [Bodo Moeller]
+
+ *) Bugfix: s_client occasionally would sleep in select() when
+ it should have checked SSL_pending() first.
+ [Bodo Moeller]
+
+ *) New functions DSA_do_sign and DSA_do_verify to provide access to
+ the raw DSA values prior to ASN.1 encoding.
+ [Ulf Möller]
+
+ *) Tweaks to Configure
+ [Niels Poppe <niels@netbox.org>]
+
+ *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
+ yet...
+ [Steve Henson]
+
+ *) New variables $(RANLIB) and $(PERL) in the Makefiles.
+ [Ulf Möller]
+
+ *) New config option to avoid instructions that are illegal on the 80386.
+ The default code is faster, but requires at least a 486.
+ [Ulf Möller]
+
+ *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
+ SSL2_SERVER_VERSION (not used at all) macros, which are now the
+ same as SSL2_VERSION anyway.
+ [Bodo Moeller]
+
+ *) New "-showcerts" option for s_client.
+ [Bodo Moeller]
+
+ *) Still more PKCS#12 integration. Add pkcs12 application to openssl
+ application. Various cleanups and fixes.
+ [Steve Henson]
+
+ *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
+ modify error routines to work internally. Add error codes and PBE init
+ to library startup routines.
+ [Steve Henson]
+
+ *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
+ packing functions to asn1 and evp. Changed function names and error
+ codes along the way.
+ [Steve Henson]
+
+ *) PKCS12 integration: and so it begins... First of several patches to
+ slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
+ objects to objects.h
+ [Steve Henson]
+
+ *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
+ and display support for Thawte strong extranet extension.
+ [Steve Henson]
+
+ *) Add LinuxPPC support.
+ [Jeff Dubrule <igor@pobox.org>]
+
+ *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
+ bn_div_words in alpha.s.
+ [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
+
+ *) Make sure the RSA OAEP test is skipped under -DRSAref because
+ OAEP isn't supported when OpenSSL is built with RSAref.
+ [Ulf Moeller <ulf@fitug.de>]
+
+ *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
+ so they no longer are missing under -DNOPROTO.
+ [Soren S. Jorvang <soren@t.dk>]
+
+
+ Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
+
+ *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
+ doesn't work when the session is reused. Coming soon!
+ [Ben Laurie]
+
+ *) Fix a security hole, that allows sessions to be reused in the wrong
+ context thus bypassing client cert protection! All software that uses
+ client certs and session caches in multiple contexts NEEDS PATCHING to
+ allow session reuse! A fuller solution is in the works.
+ [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
+
+ *) Some more source tree cleanups (removed obsolete files
+ crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
+ permission on "config" script to be executable) and a fix for the INSTALL
+ document.
+ [Ulf Moeller <ulf@fitug.de>]
+
+ *) Remove some legacy and erroneous uses of malloc, free instead of
+ Malloc, Free.
+ [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
+
+ *) Make rsa_oaep_test return non-zero on error.
+ [Ulf Moeller <ulf@fitug.de>]
+
+ *) Add support for native Solaris shared libraries. Configure
+ solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
+ if someone would make that last step automatic.
+ [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
+
+ *) ctx_size was not built with the right compiler during "make links". Fixed.
+ [Ben Laurie]
+
+ *) Change the meaning of 'ALL' in the cipher list. It now means "everything
+ except NULL ciphers". This means the default cipher list will no longer
+ enable NULL ciphers. They need to be specifically enabled e.g. with
+ the string "DEFAULT:eNULL".
+ [Steve Henson]
+
+ *) Fix to RSA private encryption routines: if p < q then it would
+ occasionally produce an invalid result. This will only happen with
+ externally generated keys because OpenSSL (and SSLeay) ensure p > q.
+ [Steve Henson]
+
+ *) Be less restrictive and allow also `perl util/perlpath.pl
+ /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
+ because this way one can also use an interpreter named `perl5' (which is
+ usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
+ installed as `perl').
+ [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
+
+ *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
+ [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
+
+ *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
+ advapi32.lib to Win32 build and change the pem test comparision
+ to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
+ suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
+ and crypto/des/ede_cbcm_enc.c.
+ [Steve Henson]
+
+ *) DES quad checksum was broken on big-endian architectures. Fixed.
+ [Ben Laurie]
+
+ *) Comment out two functions in bio.h that aren't implemented. Fix up the
+ Win32 test batch file so it (might) work again. The Win32 test batch file
+ is horrible: I feel ill....
+ [Steve Henson]
+
+ *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
+ in e_os.h. Audit of header files to check ANSI and non ANSI
+ sections: 10 functions were absent from non ANSI section and not exported
+ from Windows DLLs. Fixed up libeay.num for new functions.
+ [Steve Henson]
+
+ *) Make `openssl version' output lines consistent.
+ [Ralf S. Engelschall]
+
+ *) Fix Win32 symbol export lists for BIO functions: Added
+ BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
+ to ms/libeay{16,32}.def.
+ [Ralf S. Engelschall]
+
+ *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
+ fine under Unix and passes some trivial tests I've now added. But the
+ whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
+ added to make sure no one expects that this stuff really works in the
+ OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
+ up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
+ openssl_bio.xs.
+ [Ralf S. Engelschall]
+
+ *) Fix the generation of two part addresses in perl.
+ [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
+
+ *) Add config entry for Linux on MIPS.
+ [John Tobey <jtobey@channel1.com>]
+
+ *) Make links whenever Configure is run, unless we are on Windoze.
+ [Ben Laurie]
+
+ *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
+ Currently only issuerAltName and AuthorityKeyIdentifier make any sense
+ in CRLs.
+ [Steve Henson]
+
+ *) Add a useful kludge to allow package maintainers to specify compiler and
+ other platforms details on the command line without having to patch the
+ Configure script everytime: One now can use ``perl Configure
+ <id>:<details>'', i.e. platform ids are allowed to have details appended
+ to them (seperated by colons). This is treated as there would be a static
+ pre-configured entry in Configure's %table under key <id> with value
+ <details> and ``perl Configure <id>'' is called. So, when you want to
+ perform a quick test-compile under FreeBSD 3.1 with pgcc and without
+ assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
+ now, which overrides the FreeBSD-elf entry on-the-fly.
+ [Ralf S. Engelschall]
+
+ *) Disable new TLS1 ciphersuites by default: they aren't official yet.
+ [Ben Laurie]
+
+ *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
+ on the `perl Configure ...' command line. This way one can compile
+ OpenSSL libraries with Position Independent Code (PIC) which is needed
+ for linking it into DSOs.
+ [Ralf S. Engelschall]
+
+ *) Remarkably, export ciphers were totally broken and no-one had noticed!
+ Fixed.
+ [Ben Laurie]
+
+ *) Cleaned up the LICENSE document: The official contact for any license
+ questions now is the OpenSSL core team under openssl-core@openssl.org.
+ And add a paragraph about the dual-license situation to make sure people
+ recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
+ to the OpenSSL toolkit.
+ [Ralf S. Engelschall]
+
+ *) General source tree makefile cleanups: Made `making xxx in yyy...'
+ display consistent in the source tree and replaced `/bin/rm' by `rm'.
+ Additonally cleaned up the `make links' target: Remove unnecessary
+ semicolons, subsequent redundant removes, inline point.sh into mklink.sh
+ to speed processing and no longer clutter the display with confusing
+ stuff. Instead only the actually done links are displayed.
+ [Ralf S. Engelschall]
+
+ *) Permit null encryption ciphersuites, used for authentication only. It used
+ to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
+ It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
+ encryption.
+ [Ben Laurie]
+
+ *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
+ signed attributes when verifying signatures (this would break them),
+ the detached data encoding was wrong and public keys obtained using
+ X509_get_pubkey() weren't freed.
+ [Steve Henson]
+
+ *) Add text documentation for the BUFFER functions. Also added a work around
+ to a Win95 console bug. This was triggered by the password read stuff: the
+ last character typed gets carried over to the next fread(). If you were
+ generating a new cert request using 'req' for example then the last
+ character of the passphrase would be CR which would then enter the first
+ field as blank.
+ [Steve Henson]
+
+ *) Added the new `Includes OpenSSL Cryptography Software' button as
+ doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
+ button and can be used by applications based on OpenSSL to show the
+ relationship to the OpenSSL project.
+ [Ralf S. Engelschall]
+
+ *) Remove confusing variables in function signatures in files
+ ssl/ssl_lib.c and ssl/ssl.h.
+ [Lennart Bong <lob@kulthea.stacken.kth.se>]
+
+ *) Don't install bss_file.c under PREFIX/include/
+ [Lennart Bong <lob@kulthea.stacken.kth.se>]
+
+ *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
+ functions that return function pointers and has support for NT specific
+ stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
+ #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
+ unsigned to signed types: this was killing the Win32 compile.
+ [Steve Henson]
+
+ *) Add new certificate file to stack functions,
+ SSL_add_dir_cert_subjects_to_stack() and
+ SSL_add_file_cert_subjects_to_stack(). These largely supplant
+ SSL_load_client_CA_file(), and can be used to add multiple certs easily
+ to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
+ This means that Apache-SSL and similar packages don't have to mess around
+ to add as many CAs as they want to the preferred list.
+ [Ben Laurie]
+
+ *) Experiment with doxygen documentation. Currently only partially applied to
+ ssl/ssl_lib.c.
+ See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
+ openssl.doxy as the configuration file.
+ [Ben Laurie]
+
+ *) Get rid of remaining C++-style comments which strict C compilers hate.
+ [Ralf S. Engelschall, pointed out by Carlos Amengual]
+
+ *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
+ compiled in by default: it has problems with large keys.
+ [Steve Henson]
+
+ *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
+ DH private keys and/or callback functions which directly correspond to
+ their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
+ is needed for applications which have to configure certificates on a
+ per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
+ (e.g. s_server).
+ For the RSA certificate situation is makes no difference, but
+ for the DSA certificate situation this fixes the "no shared cipher"
+ problem where the OpenSSL cipher selection procedure failed because the
+ temporary keys were not overtaken from the context and the API provided
+ no way to reconfigure them.
+ The new functions now let applications reconfigure the stuff and they
+ are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
+ SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
+ non-public-API function ssl_cert_instantiate() is used as a helper
+ function and also to reduce code redundancy inside ssl_rsa.c.
+ [Ralf S. Engelschall]
+
+ *) Move s_server -dcert and -dkey options out of the undocumented feature
+ area because they are useful for the DSA situation and should be
+ recognized by the users.
+ [Ralf S. Engelschall]
+
+ *) Fix the cipher decision scheme for export ciphers: the export bits are
+ *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
+ SSL_EXP_MASK. So, the original variable has to be used instead of the
+ already masked variable.
+ [Richard Levitte <levitte@stacken.kth.se>]
+
+ *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
+ [Richard Levitte <levitte@stacken.kth.se>]
+
+ *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
+ from `int' to `unsigned int' because it's a length and initialized by
+ EVP_DigestFinal() which expects an `unsigned int *'.
+ [Richard Levitte <levitte@stacken.kth.se>]
+
+ *) Don't hard-code path to Perl interpreter on shebang line of Configure
+ script. Instead use the usual Shell->Perl transition trick.
+ [Ralf S. Engelschall]
+
+ *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
+ (in addition to RSA certificates) to match the behaviour of `openssl dsa
+ -noout -modulus' as it's already the case for `openssl rsa -noout
+ -modulus'. For RSA the -modulus is the real "modulus" while for DSA
+ currently the public key is printed (a decision which was already done by
+ `openssl dsa -modulus' in the past) which serves a similar purpose.
+ Additionally the NO_RSA no longer completely removes the whole -modulus
+ option; it now only avoids using the RSA stuff. Same applies to NO_DSA
+ now, too.
+ [Ralf S. Engelschall]
+
+ *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
+ BIO. See the source (crypto/evp/bio_ok.c) for more info.
+ [Arne Ansper <arne@ats.cyber.ee>]
+
+ *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
+ to be added. Now both 'req' and 'ca' can use new objects defined in the
+ config file.
+ [Steve Henson]
+
+ *) Add cool BIO that does syslog (or event log on NT).
+ [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
+
+ *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
+ TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
+ TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
+ Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
+ [Ben Laurie]
+
+ *) Add preliminary config info for new extension code.
+ [Steve Henson]
+
+ *) Make RSA_NO_PADDING really use no padding.
+ [Ulf Moeller <ulf@fitug.de>]
+
+ *) Generate errors when private/public key check is done.
+ [Ben Laurie]
+
+ *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
+ for some CRL extensions and new objects added.
+ [Steve Henson]
+
+ *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
+ key usage extension and fuller support for authority key id.
+ [Steve Henson]
+
+ *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
+ padding method for RSA, which is recommended for new applications in PKCS
+ #1 v2.0 (RFC 2437, October 1998).
+ OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
+ foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
+ against Bleichbacher's attack on RSA.
+ [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
+ Ben Laurie]
+
+ *) Updates to the new SSL compression code
+ [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
+
+ *) Fix so that the version number in the master secret, when passed
+ via RSA, checks that if TLS was proposed, but we roll back to SSLv3
+ (because the server will not accept higher), that the version number
+ is 0x03,0x01, not 0x03,0x00
+ [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
+
+ *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
+ leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
+ in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
+ [Steve Henson]
+
+ *) Support for RAW extensions where an arbitrary extension can be
+ created by including its DER encoding. See apps/openssl.cnf for
+ an example.
+ [Steve Henson]
+
+ *) Make sure latest Perl versions don't interpret some generated C array
+ code as Perl array code in the crypto/err/err_genc.pl script.
+ [Lars Weber <3weber@informatik.uni-hamburg.de>]
+
+ *) Modify ms/do_ms.bat to not generate assembly language makefiles since
+ not many people have the assembler. Various Win32 compilation fixes and
+ update to the INSTALL.W32 file with (hopefully) more accurate Win32
+ build instructions.
+ [Steve Henson]
+
+ *) Modify configure script 'Configure' to automatically create crypto/date.h
+ file under Win32 and also build pem.h from pem.org. New script
+ util/mkfiles.pl to create the MINFO file on environments that can't do a
+ 'make files': perl util/mkfiles.pl >MINFO should work.
+ [Steve Henson]
+
+ *) Major rework of DES function declarations, in the pursuit of correctness
+ and purity. As a result, many evil casts evaporated, and some weirdness,
+ too. You may find this causes warnings in your code. Zapping your evil
+ casts will probably fix them. Mostly.
+ [Ben Laurie]
+
+ *) Fix for a typo in asn1.h. Bug fix to object creation script
+ obj_dat.pl. It considered a zero in an object definition to mean
+ "end of object": none of the objects in objects.h have any zeros
+ so it wasn't spotted.
+ [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
+
+ *) Add support for Triple DES Cipher Block Chaining with Output Feedback
+ Masking (CBCM). In the absence of test vectors, the best I have been able
+ to do is check that the decrypt undoes the encrypt, so far. Send me test
+ vectors if you have them.
+ [Ben Laurie]
+
+ *) Correct calculation of key length for export ciphers (too much space was
+ allocated for null ciphers). This has not been tested!
+ [Ben Laurie]
+
+ *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
+ message is now correct (it understands "crypto" and "ssl" on its
+ command line). There is also now an "update" option. This will update
+ the util/ssleay.num and util/libeay.num files with any new functions.
+ If you do a:
+ perl util/mkdef.pl crypto ssl update
+ it will update them.
+ [Steve Henson]
+
+ *) Overhauled the Perl interface (perl/*):
+ - ported BN stuff to OpenSSL's different BN library
+ - made the perl/ source tree CVS-aware
+ - renamed the package from SSLeay to OpenSSL (the files still contain
+ their history because I've copied them in the repository)
+ - removed obsolete files (the test scripts will be replaced
+ by better Test::Harness variants in the future)
+ [Ralf S. Engelschall]
+
+ *) First cut for a very conservative source tree cleanup:
+ 1. merge various obsolete readme texts into doc/ssleay.txt
+ where we collect the old documents and readme texts.
+ 2. remove the first part of files where I'm already sure that we no
+ longer need them because of three reasons: either they are just temporary
+ files which were left by Eric or they are preserved original files where
+ I've verified that the diff is also available in the CVS via "cvs diff
+ -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
+ the crypto/md/ stuff).
+ [Ralf S. Engelschall]
+
+ *) More extension code. Incomplete support for subject and issuer alt
+ name, issuer and authority key id. Change the i2v function parameters
+ and add an extra 'crl' parameter in the X509V3_CTX structure: guess
+ what that's for :-) Fix to ASN1 macro which messed up
+ IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
+ [Steve Henson]
+
+ *) Preliminary support for ENUMERATED type. This is largely copied from the
+ INTEGER code.
+ [Steve Henson]
+
+ *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
+ [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
+
+ *) Make sure `make rehash' target really finds the `openssl' program.
+ [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
+
+ *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
+ like to hear about it if this slows down other processors.
+ [Ben Laurie]
+
+ *) Add CygWin32 platform information to Configure script.
+ [Alan Batie <batie@aahz.jf.intel.com>]
+
+ *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
+ [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
+
+ *) New program nseq to manipulate netscape certificate sequences
+ [Steve Henson]
+
+ *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
+ few typos.
+ [Steve Henson]
+
+ *) Fixes to BN code. Previously the default was to define BN_RECURSION
+ but the BN code had some problems that would cause failures when
+ doing certificate verification and some other functions.
+ [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
+
+ *) Add ASN1 and PEM code to support netscape certificate sequences.
+ [Steve Henson]
+
+ *) Add ASN1 and PEM code to support netscape certificate sequences.
+ [Steve Henson]
+
+ *) Add several PKIX and private extended key usage OIDs.
+ [Steve Henson]
+
+ *) Modify the 'ca' program to handle the new extension code. Modify
+ openssl.cnf for new extension format, add comments.
+ [Steve Henson]
+
+ *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
+ and add a sample to openssl.cnf so req -x509 now adds appropriate
+ CA extensions.
+ [Steve Henson]
+
+ *) Continued X509 V3 changes. Add to other makefiles, integrate with the
+ error code, add initial support to X509_print() and x509 application.
+ [Steve Henson]
+
+ *) Takes a deep breath and start addding X509 V3 extension support code. Add
+ files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
+ stuff is currently isolated and isn't even compiled yet.
+ [Steve Henson]
+
+ *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
+ ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
+ Removed the versions check from X509 routines when loading extensions:
+ this allows certain broken certificates that don't set the version
+ properly to be processed.
+ [Steve Henson]
+
+ *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
+ Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
+ can still be regenerated with "make depend".
+ [Ben Laurie]
+
+ *) Spelling mistake in C version of CAST-128.
+ [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
+
+ *) Changes to the error generation code. The perl script err-code.pl
+ now reads in the old error codes and retains the old numbers, only
+ adding new ones if necessary. It also only changes the .err files if new
+ codes are added. The makefiles have been modified to only insert errors
+ when needed (to avoid needlessly modifying header files). This is done
+ by only inserting errors if the .err file is newer than the auto generated
+ C file. To rebuild all the error codes from scratch (the old behaviour)
+ either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
+ or delete all the .err files.
+ [Steve Henson]
+
+ *) CAST-128 was incorrectly implemented for short keys. The C version has
+ been fixed, but is untested. The assembler versions are also fixed, but
+ new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
+ to regenerate it if needed.
+ [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
+ Hagino <itojun@kame.net>]
+
+ *) File was opened incorrectly in randfile.c.
+ [Ulf Möller <ulf@fitug.de>]
+
+ *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
+ functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
+ GeneralizedTime. ASN1_TIME is the proper type used in certificates et
+ al: it's just almost always a UTCTime. Note this patch adds new error
+ codes so do a "make errors" if there are problems.
+ [Steve Henson]
+
+ *) Correct Linux 1 recognition in config.
+ [Ulf Möller <ulf@fitug.de>]
+
+ *) Remove pointless MD5 hash when using DSA keys in ca.
+ [Anonymous <nobody@replay.com>]
+
+ *) Generate an error if given an empty string as a cert directory. Also
+ generate an error if handed NULL (previously returned 0 to indicate an
+ error, but didn't set one).
+ [Ben Laurie, reported by Anonymous <nobody@replay.com>]
+
+ *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
+ [Ben Laurie]
+
+ *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
+ parameters. This was causing a warning which killed off the Win32 compile.
+ [Steve Henson]
+
+ *) Remove C++ style comments from crypto/bn/bn_local.h.
+ [Neil Costigan <neil.costigan@celocom.com>]
+
+ *) The function OBJ_txt2nid was broken. It was supposed to return a nid
+ based on a text string, looking up short and long names and finally
+ "dot" format. The "dot" format stuff didn't work. Added new function
+ OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
+ OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
+ OID is not part of the table.
+ [Steve Henson]
+
+ *) Add prototypes to X509 lookup/verify methods, fixing a bug in
+ X509_LOOKUP_by_alias().
+ [Ben Laurie]
+
+ *) Sort openssl functions by name.
+ [Ben Laurie]
+
+ *) Get the gendsa program working (hopefully) and add it to app list. Remove
+ encryption from sample DSA keys (in case anyone is interested the password
+ was "1234").
+ [Steve Henson]
+
+ *) Make _all_ *_free functions accept a NULL pointer.
+ [Frans Heymans <fheymans@isaserver.be>]
+
+ *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
+ NULL pointers.
+ [Anonymous <nobody@replay.com>]
+
+ *) s_server should send the CAfile as acceptable CAs, not its own cert.
+ [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
+
+ *) Don't blow it for numeric -newkey arguments to apps/req.
+ [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
+
+ *) Temp key "for export" tests were wrong in s3_srvr.c.
+ [Anonymous <nobody@replay.com>]
+
+ *) Add prototype for temp key callback functions
+ SSL_CTX_set_tmp_{rsa,dh}_callback().
+ [Ben Laurie]
+
+ *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
+ DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
+ [Steve Henson]
+
+ *) X509_name_add_entry() freed the wrong thing after an error.
+ [Arne Ansper <arne@ats.cyber.ee>]
+
+ *) rsa_eay.c would attempt to free a NULL context.
+ [Arne Ansper <arne@ats.cyber.ee>]
+
+ *) BIO_s_socket() had a broken should_retry() on Windoze.
+ [Arne Ansper <arne@ats.cyber.ee>]
+
+ *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
+ [Arne Ansper <arne@ats.cyber.ee>]
+
+ *) Make sure the already existing X509_STORE->depth variable is initialized
+ in X509_STORE_new(), but document the fact that this variable is still
+ unused in the certificate verification process.
+ [Ralf S. Engelschall]
+
+ *) Fix the various library and apps files to free up pkeys obtained from
+ X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
+ [Steve Henson]
+
+ *) Fix reference counting in X509_PUBKEY_get(). This makes
+ demos/maurice/example2.c work, amongst others, probably.
+ [Steve Henson and Ben Laurie]
+
+ *) First cut of a cleanup for apps/. First the `ssleay' program is now named
+ `openssl' and second, the shortcut symlinks for the `openssl <command>'
+ are no longer created. This way we have a single and consistent command
+ line interface `openssl <command>', similar to `cvs <command>'.
+ [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
+
+ *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
+ BIT STRING wrapper always have zero unused bits.
+ [Steve Henson]
+
+ *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
+ [Steve Henson]
+
+ *) Make the top-level INSTALL documentation easier to understand.
+ [Paul Sutton]
+
+ *) Makefiles updated to exit if an error occurs in a sub-directory
+ make (including if user presses ^C) [Paul Sutton]
+
+ *) Make Montgomery context stuff explicit in RSA data structure.
+ [Ben Laurie]
+
+ *) Fix build order of pem and err to allow for generated pem.h.
+ [Ben Laurie]
+
+ *) Fix renumbering bug in X509_NAME_delete_entry().
+ [Ben Laurie]
+
+ *) Enhanced the err-ins.pl script so it makes the error library number
+ global and can add a library name. This is needed for external ASN1 and
+ other error libraries.
+ [Steve Henson]
+
+ *) Fixed sk_insert which never worked properly.
+ [Steve Henson]
+
+ *) Fix ASN1 macros so they can handle indefinite length construted
+ EXPLICIT tags. Some non standard certificates use these: they can now
+ be read in.
+ [Steve Henson]
+
+ *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
+ into a single doc/ssleay.txt bundle. This way the information is still
+ preserved but no longer messes up this directory. Now it's new room for
+ the new set of documenation files.
+ [Ralf S. Engelschall]
+
+ *) SETs were incorrectly DER encoded. This was a major pain, because they
+ shared code with SEQUENCEs, which aren't coded the same. This means that
+ almost everything to do with SETs or SEQUENCEs has either changed name or
+ number of arguments.
+ [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
+
+ *) Fix test data to work with the above.
+ [Ben Laurie]
+
+ *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
+ was already fixed by Eric for 0.9.1 it seems.
+ [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
+
+ *) Autodetect FreeBSD3.
+ [Ben Laurie]
+
+ *) Fix various bugs in Configure. This affects the following platforms:
+ nextstep
+ ncr-scde
+ unixware-2.0
+ unixware-2.0-pentium
+ sco5-cc.
+ [Ben Laurie]
+
+ *) Eliminate generated files from CVS. Reorder tests to regenerate files
+ before they are needed.
+ [Ben Laurie]
+
+ *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
+ [Ben Laurie]
+
+
+ Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
+
+ *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
+ changed SSLeay to OpenSSL in version strings.
+ [Ralf S. Engelschall]
+
+ *) Some fixups to the top-level documents.
+ [Paul Sutton]
+
+ *) Fixed the nasty bug where rsaref.h was not found under compile-time
+ because the symlink to include/ was missing.
+ [Ralf S. Engelschall]
+
+ *) Incorporated the popular no-RSA/DSA-only patches
+ which allow to compile a RSA-free SSLeay.
+ [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
+
+ *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
+ when "ssleay" is still not found.
+ [Ralf S. Engelschall]
+
+ *) Added more platforms to Configure: Cray T3E, HPUX 11,
+ [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
+
+ *) Updated the README file.
+ [Ralf S. Engelschall]
+
+ *) Added various .cvsignore files in the CVS repository subdirs
+ to make a "cvs update" really silent.
+ [Ralf S. Engelschall]
+
+ *) Recompiled the error-definition header files and added
+ missing symbols to the Win32 linker tables.
+ [Ralf S. Engelschall]
+
+ *) Cleaned up the top-level documents;
+ o new files: CHANGES and LICENSE
+ o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
+ o merged COPYRIGHT into LICENSE
+ o removed obsolete TODO file
+ o renamed MICROSOFT to INSTALL.W32
+ [Ralf S. Engelschall]
+
+ *) Removed dummy files from the 0.9.1b source tree:
+ crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
+ crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
+ crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
+ crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
+ util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
+ [Ralf S. Engelschall]
+
+ *) Added various platform portability fixes.
+ [Mark J. Cox]
+
+ *) The Genesis of the OpenSSL rpject:
+ We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
+ Young and Tim J. Hudson created while they were working for C2Net until
+ summer 1998.
+ [The OpenSSL Project]
+
+
+ Changes between 0.9.0b and 0.9.1b [not released]
+
+ *) Updated a few CA certificates under certs/
+ [Eric A. Young]
+
+ *) Changed some BIGNUM api stuff.
+ [Eric A. Young]
+
+ *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
+ DGUX x86, Linux Alpha, etc.
+ [Eric A. Young]
+
+ *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
+ RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
+ available).
+ [Eric A. Young]
+
+ *) Add -strparse option to asn1pars program which parses nested
+ binary structures
+ [Dr Stephen Henson <shenson@bigfoot.com>]
+
+ *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
+ [Eric A. Young]
+
+ *) DSA fix for "ca" program.
+ [Eric A. Young]
+
+ *) Added "-genkey" option to "dsaparam" program.
+ [Eric A. Young]
+
+ *) Added RIPE MD160 (rmd160) message digest.
+ [Eric A. Young]
+
+ *) Added -a (all) option to "ssleay version" command.
+ [Eric A. Young]
+
+ *) Added PLATFORM define which is the id given to Configure.
+ [Eric A. Young]
+
+ *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
+ [Eric A. Young]
+
+ *) Extended the ASN.1 parser routines.
+ [Eric A. Young]
+
+ *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
+ [Eric A. Young]
+
+ *) Added a BN_CTX to the BN library.
+ [Eric A. Young]
+
+ *) Fixed the weak key values in DES library
+ [Eric A. Young]
+
+ *) Changed API in EVP library for cipher aliases.
+ [Eric A. Young]
+
+ *) Added support for RC2/64bit cipher.
+ [Eric A. Young]
+
+ *) Converted the lhash library to the crypto/mem.c functions.
+ [Eric A. Young]
+
+ *) Added more recognized ASN.1 object ids.
+ [Eric A. Young]
+
+ *) Added more RSA padding checks for SSL/TLS.
+ [Eric A. Young]
+
+ *) Added BIO proxy/filter functionality.
+ [Eric A. Young]
+
+ *) Added extra_certs to SSL_CTX which can be used
+ send extra CA certificates to the client in the CA cert chain sending
+ process. It can be configured with SSL_CTX_add_extra_chain_cert().
+ [Eric A. Young]
+
+ *) Now Fortezza is denied in the authentication phase because
+ this is key exchange mechanism is not supported by SSLeay at all.
+ [Eric A. Young]
+
+ *) Additional PKCS1 checks.
+ [Eric A. Young]
+
+ *) Support the string "TLSv1" for all TLS v1 ciphers.
+ [Eric A. Young]
+
+ *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
+ ex_data index of the SSL context in the X509_STORE_CTX ex_data.
+ [Eric A. Young]
+
+ *) Fixed a few memory leaks.
+ [Eric A. Young]
+
+ *) Fixed various code and comment typos.
+ [Eric A. Young]
+
+ *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
+ bytes sent in the client random.
+ [Edward Bishop <ebishop@spyglass.com>]
+
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