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diff --git a/openssl/doc/crypto/crypto.pod b/openssl/doc/crypto/crypto.pod
new file mode 100644
index 000000000..7a527992b
--- /dev/null
+++ b/openssl/doc/crypto/crypto.pod
@@ -0,0 +1,85 @@
+=pod
+
+=head1 NAME
+
+crypto - OpenSSL cryptographic library
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+The OpenSSL B<crypto> library implements a wide range of cryptographic
+algorithms used in various Internet standards. The services provided
+by this library are used by the OpenSSL implementations of SSL, TLS
+and S/MIME, and they have also been used to implement SSH, OpenPGP, and
+other cryptographic standards.
+
+=head1 OVERVIEW
+
+B<libcrypto> consists of a number of sub-libraries that implement the
+individual algorithms.
+
+The functionality includes symmetric encryption, public key
+cryptography and key agreement, certificate handling, cryptographic
+hash functions and a cryptographic pseudo-random number generator.
+
+=over 4
+
+=item SYMMETRIC CIPHERS
+
+L<blowfish(3)|blowfish(3)>, L<cast(3)|cast(3)>, L<des(3)|des(3)>,
+L<idea(3)|idea(3)>, L<rc2(3)|rc2(3)>, L<rc4(3)|rc4(3)>, L<rc5(3)|rc5(3)> 
+
+=item PUBLIC KEY CRYPTOGRAPHY AND KEY AGREEMENT
+
+L<dsa(3)|dsa(3)>, L<dh(3)|dh(3)>, L<rsa(3)|rsa(3)>
+
+=item CERTIFICATES
+
+L<x509(3)|x509(3)>, L<x509v3(3)|x509v3(3)>
+
+=item AUTHENTICATION CODES, HASH FUNCTIONS
+
+L<hmac(3)|hmac(3)>, L<md2(3)|md2(3)>, L<md4(3)|md4(3)>,
+L<md5(3)|md5(3)>, L<mdc2(3)|mdc2(3)>, L<ripemd(3)|ripemd(3)>,
+L<sha(3)|sha(3)>
+
+=item AUXILIARY FUNCTIONS
+
+L<err(3)|err(3)>, L<threads(3)|threads(3)>, L<rand(3)|rand(3)>,
+L<OPENSSL_VERSION_NUMBER(3)|OPENSSL_VERSION_NUMBER(3)>
+
+=item INPUT/OUTPUT, DATA ENCODING
+
+L<asn1(3)|asn1(3)>, L<bio(3)|bio(3)>, L<evp(3)|evp(3)>, L<pem(3)|pem(3)>,
+L<pkcs7(3)|pkcs7(3)>, L<pkcs12(3)|pkcs12(3)> 
+
+=item INTERNAL FUNCTIONS
+
+L<bn(3)|bn(3)>, L<buffer(3)|buffer(3)>, L<lhash(3)|lhash(3)>,
+L<objects(3)|objects(3)>, L<stack(3)|stack(3)>,
+L<txt_db(3)|txt_db(3)> 
+
+=back
+
+=head1 NOTES
+
+Some of the newer functions follow a naming convention using the numbers
+B<0> and B<1>. For example the functions:
+
+ int X509_CRL_add0_revoked(X509_CRL *crl, X509_REVOKED *rev);
+ int X509_add1_trust_object(X509 *x, ASN1_OBJECT *obj);
+
+The B<0> version uses the supplied structure pointer directly
+in the parent and it will be freed up when the parent is freed.
+In the above example B<crl> would be freed but B<rev> would not.
+
+The B<1> function uses a copy of the supplied structure pointer
+(or in some cases increases its link count) in the parent and
+so both (B<x> and B<obj> above) should be freed up.
+
+=head1 SEE ALSO
+
+L<openssl(1)|openssl(1)>, L<ssl(3)|ssl(3)>
+
+=cut