diff options
Diffstat (limited to 'openssl/NEWS')
| -rw-r--r-- | openssl/NEWS | 184 |
1 files changed, 119 insertions, 65 deletions
diff --git a/openssl/NEWS b/openssl/NEWS index 0269f2277..909fea96c 100644 --- a/openssl/NEWS +++ b/openssl/NEWS @@ -5,11 +5,17 @@ This file gives a brief overview of the major changes between each OpenSSL release. For more details please read the CHANGES file. - Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e: + Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014] + + o Fix for TLS record tampering bug CVE-2013-4353 + o Fix for TLS version checking bug CVE-2013-6449 + o Fix for DTLS retransmission bug CVE-2013-6450 + + Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]: o Corrected fix for CVE-2013-0169 - Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d: + Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]: o Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version. o Include the fips configuration module. @@ -17,24 +23,24 @@ o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169 o Fix for TLS AESNI record handling flaw CVE-2012-2686 - Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c: + Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]: o Fix TLS/DTLS record length checking bug CVE-2012-2333 o Don't attempt to use non-FIPS composite ciphers in FIPS mode. - Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b: + Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]: o Fix compilation error on non-x86 platforms. o Make FIPS capable OpenSSL ciphers work in non-FIPS mode. o Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0 - Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a: + Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]: o Fix for ASN1 overflow bug CVE-2012-2110 o Workarounds for some servers that hang on long client hellos. o Fix SEGV in AES code. - Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1: + Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]: o TLS/DTLS heartbeat support. o SCTP support. @@ -47,17 +53,30 @@ o Preliminary FIPS capability for unvalidated 2.0 FIPS module. o SRP support. - Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h: + Major changes between OpenSSL 1.0.0j and OpenSSL 1.0.0k [5 Feb 2013]: + + o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169 + o Fix OCSP bad key DoS attack CVE-2013-0166 + + Major changes between OpenSSL 1.0.0i and OpenSSL 1.0.0j [10 May 2012]: + + o Fix DTLS record length checking bug CVE-2012-2333 + + Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.0i [19 Apr 2012]: + + o Fix for ASN1 overflow bug CVE-2012-2110 + + Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]: o Fix for CMS/PKCS#7 MMA CVE-2012-0884 o Corrected fix for CVE-2011-4619 o Various DTLS fixes. - Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g: + Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]: o Fix for DTLS DoS issue CVE-2012-0050 - Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f: + Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]: o Fix for DTLS plaintext recovery attack CVE-2011-4108 o Clear block padding bytes of SSL 3.0 records CVE-2011-4576 @@ -65,7 +84,7 @@ o Check parameters are not NULL in GOST ENGINE CVE-2012-0027 o Check for malformed RFC3779 data CVE-2011-4577 - Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e: + Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]: o Fix for CRL vulnerability issue CVE-2011-3207 o Fix for ECDH crashes CVE-2011-3210 @@ -73,11 +92,11 @@ o Support ECDH ciphersuites for certificates using SHA2 algorithms. o Various DTLS fixes. - Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d: + Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]: o Fix for security issue CVE-2011-0014 - Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c: + Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]: o Fix for security issue CVE-2010-4180 o Fix for CVE-2010-4252 @@ -85,18 +104,18 @@ o Fix various platform compilation issues. o Corrected fix for security issue CVE-2010-3864. - Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b: + Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]: o Fix for security issue CVE-2010-3864. o Fix for CVE-2010-2939 o Fix WIN32 build system for GOST ENGINE. - Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a: + Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]: o Fix for security issue CVE-2010-1633. o GOST MAC and CFB fixes. - Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0: + Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]: o RFC3280 path validation: sufficient to process PKITS tests. o Integrated support for PVK files and keyblobs. @@ -119,20 +138,55 @@ o Opaque PRF Input TLS extension support. o Updated time routines to avoid OS limitations. - Major changes between OpenSSL 0.9.8q and OpenSSL 0.9.8r: + Major changes between OpenSSL 0.9.8x and OpenSSL 0.9.8y [5 Feb 2013]: + + o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169 + o Fix OCSP bad key DoS attack CVE-2013-0166 + + Major changes between OpenSSL 0.9.8w and OpenSSL 0.9.8x [10 May 2012]: + + o Fix DTLS record length checking bug CVE-2012-2333 + + Major changes between OpenSSL 0.9.8v and OpenSSL 0.9.8w [23 Apr 2012]: + + o Fix for CVE-2012-2131 (corrected fix for 0.9.8 and CVE-2012-2110) + + Major changes between OpenSSL 0.9.8u and OpenSSL 0.9.8v [19 Apr 2012]: + + o Fix for ASN1 overflow bug CVE-2012-2110 + + Major changes between OpenSSL 0.9.8t and OpenSSL 0.9.8u [12 Mar 2012]: + + o Fix for CMS/PKCS#7 MMA CVE-2012-0884 + o Corrected fix for CVE-2011-4619 + o Various DTLS fixes. + + Major changes between OpenSSL 0.9.8s and OpenSSL 0.9.8t [18 Jan 2012]: + + o Fix for DTLS DoS issue CVE-2012-0050 + + Major changes between OpenSSL 0.9.8r and OpenSSL 0.9.8s [4 Jan 2012]: + + o Fix for DTLS plaintext recovery attack CVE-2011-4108 + o Fix policy check double free error CVE-2011-4109 + o Clear block padding bytes of SSL 3.0 records CVE-2011-4576 + o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619 + o Check for malformed RFC3779 data CVE-2011-4577 + + Major changes between OpenSSL 0.9.8q and OpenSSL 0.9.8r [8 Feb 2011]: o Fix for security issue CVE-2011-0014 - Major changes between OpenSSL 0.9.8p and OpenSSL 0.9.8q: + Major changes between OpenSSL 0.9.8p and OpenSSL 0.9.8q [2 Dec 2010]: o Fix for security issue CVE-2010-4180 o Fix for CVE-2010-4252 - Major changes between OpenSSL 0.9.8o and OpenSSL 0.9.8p: + Major changes between OpenSSL 0.9.8o and OpenSSL 0.9.8p [16 Nov 2010]: o Fix for security issue CVE-2010-3864. - Major changes between OpenSSL 0.9.8n and OpenSSL 0.9.8o: + Major changes between OpenSSL 0.9.8n and OpenSSL 0.9.8o [1 Jun 2010]: o Fix for security issue CVE-2010-0742. o Various DTLS fixes. @@ -140,12 +194,12 @@ o Fix for no-rc4 compilation. o Chil ENGINE unload workaround. - Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n: + Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]: o CFB cipher definition fixes. o Fix security issues CVE-2010-0740 and CVE-2010-0433. - Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m: + Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]: o Cipher definition fixes. o Workaround for slow RAND_poll() on some WIN32 versions. @@ -157,33 +211,33 @@ o Ticket and SNI coexistence fixes. o Many fixes to DTLS handling. - Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l: + Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]: o Temporary work around for CVE-2009-3555: disable renegotiation. - Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k: + Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]: o Fix various build issues. o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789) - Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j: + Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]: o Fix security issue (CVE-2008-5077) o Merge FIPS 140-2 branch code. - Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h: + Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]: o CryptoAPI ENGINE support. o Various precautionary measures. o Fix for bugs affecting certificate request creation. o Support for local machine keyset attribute in PKCS#12 files. - Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g: + Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]: o Backport of CMS functionality to 0.9.8. o Fixes for bugs introduced with 0.9.8f. - Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f: + Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]: o Add gcc 4.2 support. o Add support for AES and SSE2 assembly lanugauge optimization @@ -194,23 +248,23 @@ o RFC4507bis support. o TLS Extensions support. - Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e: + Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]: o Various ciphersuite selection fixes. o RFC3779 support. - Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d: + Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]: o Introduce limits to prevent malicious key DoS (CVE-2006-2940) o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343) o Changes to ciphersuite selection algorithm - Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c: + Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]: o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339 o New cipher Camellia - Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b: + Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]: o Cipher string fixes. o Fixes for VC++ 2005. @@ -220,12 +274,12 @@ o Built in dynamic engine compilation support on Win32. o Fixes auto dynamic engine loading in Win32. - Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a: + Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]: o Fix potential SSL 2.0 rollback, CVE-2005-2969 o Extended Windows CE support - Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8: + Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]: o Major work on the BIGNUM library for higher efficiency and to make operations more streamlined and less contradictory. This @@ -299,36 +353,36 @@ o Added initial support for Win64. o Added alternate pkg-config files. - Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m: + Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]: o FIPS 1.1.1 module linking. o Various ciphersuite selection fixes. - Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l: + Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]: o Introduce limits to prevent malicious key DoS (CVE-2006-2940) o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343) - Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k: + Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]: o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339 - Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j: + Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]: o Visual C++ 2005 fixes. o Update Windows build system for FIPS. - Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i: + Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]: o Give EVP_MAX_MD_SIZE it's old value, except for a FIPS build. - Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h: + Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]: o Fix SSL 2.0 Rollback, CVE-2005-2969 o Allow use of fixed-length exponent on DSA signing o Default fixed-window RSA, DSA, DH private-key operations - Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g: + Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]: o More compilation issues fixed. o Adaptation to more modern Kerberos API. @@ -337,7 +391,7 @@ o More constification. o Added processing of proxy certificates (RFC 3820). - Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f: + Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]: o Several compilation issues fixed. o Many memory allocation failure checks added. @@ -345,12 +399,12 @@ o Mandatory basic checks on certificates. o Performance improvements. - Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e: + Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]: o Fix race condition in CRL checking code. o Fixes to PKCS#7 (S/MIME) code. - Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d: + Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]: o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug o Security: Fix null-pointer assignment in do_change_cipher_spec() @@ -358,14 +412,14 @@ o Multiple X509 verification fixes o Speed up HMAC and other operations - Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c: + Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]: o Security: fix various ASN1 parsing bugs. o New -ignore_err option to OCSP utility. o Various interop and bug fixes in S/MIME code. o SSL/TLS protocol fix for unrequested client certificates. - Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b: + Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]: o Security: counter the Klima-Pokorny-Rosa extension of Bleichbacher's attack @@ -376,7 +430,7 @@ o ASN.1: treat domainComponent correctly. o Documentation: fixes and additions. - Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a: + Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]: o Security: Important security related bugfixes. o Enhanced compatibility with MIT Kerberos. @@ -387,7 +441,7 @@ o SSL/TLS: now handles manual certificate chain building. o SSL/TLS: certain session ID malfunctions corrected. - Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7: + Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]: o New library section OCSP. o Complete rewrite of ASN1 code. @@ -433,23 +487,23 @@ o SSL/TLS: add callback to retrieve SSL/TLS messages. o SSL/TLS: support AES cipher suites (RFC3268). - Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k: + Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]: o Security: fix various ASN1 parsing bugs. o SSL/TLS protocol fix for unrequested client certificates. - Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j: + Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]: o Security: counter the Klima-Pokorny-Rosa extension of Bleichbacher's attack o Security: make RSA blinding default. o Build: shared library support fixes. - Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i: + Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]: o Important security related bugfixes. - Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h: + Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]: o New configuration targets for Tandem OSS and A/UX. o New OIDs for Microsoft attributes. @@ -463,25 +517,25 @@ o Fixes for smaller building problems. o Updates of manuals, FAQ and other instructive documents. - Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g: + Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]: o Important building fixes on Unix. - Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f: + Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]: o Various important bugfixes. - Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e: + Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]: o Important security related bugfixes. o Various SSL/TLS library bugfixes. - Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d: + Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]: o Various SSL/TLS library bugfixes. o Fix DH parameter generation for 'non-standard' generators. - Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c: + Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]: o Various SSL/TLS library bugfixes. o BIGNUM library fixes. @@ -494,7 +548,7 @@ Broadcom and Cryptographic Appliance's keyserver [in 0.9.6c-engine release]. - Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b: + Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]: o Security fix: PRNG improvements. o Security fix: RSA OAEP check. @@ -511,7 +565,7 @@ o Increase default size for BIO buffering filter. o Compatibility fixes in some scripts. - Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a: + Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]: o Security fix: change behavior of OpenSSL to avoid using environment variables when running as root. @@ -536,7 +590,7 @@ o New function BN_rand_range(). o Add "-rand" option to openssl s_client and s_server. - Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6: + Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]: o Some documentation for BIO and SSL libraries. o Enhanced chain verification using key identifiers. @@ -551,7 +605,7 @@ [1] The support for external crypto devices is currently a separate distribution. See the file README.ENGINE. - Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a: + Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]: o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8 o Shared library support for HPUX and Solaris-gcc @@ -560,7 +614,7 @@ o New 'rand' application o New way to check for existence of algorithms from scripts - Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5: + Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]: o S/MIME support in new 'smime' command o Documentation for the OpenSSL command line application @@ -596,7 +650,7 @@ o Enhanced support for Alpha Linux o Experimental MacOS support - Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4: + Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]: o Transparent support for PKCS#8 format private keys: these are used by several software packages and are more secure than the standard @@ -607,7 +661,7 @@ o New pipe-like BIO that allows using the SSL library when actual I/O must be handled by the application (BIO pair) - Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3: + Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]: o Lots of enhancements and cleanups to the Configuration mechanism o RSA OEAP related fixes o Added `openssl ca -revoke' option for revoking a certificate @@ -621,7 +675,7 @@ o Sparc assembler bignum implementation, optimized hash functions o Option to disable selected ciphers - Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b: + Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]: o Fixed a security hole related to session resumption o Fixed RSA encryption routines for the p < q case o "ALL" in cipher lists now means "everything except NULL ciphers" @@ -643,7 +697,7 @@ o Lots of memory leak fixes. o Lots of bug fixes. - Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c: + Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]: o Integration of the popular NO_RSA/NO_DSA patches o Initial support for compression inside the SSL record layer o Added BIO proxy and filtering functionality |