Enhance EVP code to generate random symmetric keys of the

[openssl.git] / CHANGES

diff --git a/CHANGES b/CHANGES
index bea8e7683874b91aa19f494bd0123e13ceeea5e8..a72d5d6eaaf5f8d9c9c1aef4ad96ac24c8cebd49 100644 (file)
--- a/CHANGES
+++ b/CHANGES
@@ -4,6 +4,69 @@
 
  Changes between 0.9.7c and 0.9.8  [xx XXX xxxx]
 
+  *) 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
@@ -18,7 +81,7 @@
      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]
+     [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
@@ -617,6 +680,14 @@
 
  Changes between 0.9.7c and 0.9.7d  [xx XXX XXXX]
 
+  *) 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