OpenSSL CHANGES
_______________
- Changes between 0.9.7c and 0.9.8 [xx XXX xxxx]
+ Changes between 0.9.7e and 0.9.8 [xx XXX xxxx]
+
+ *) 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
*) Support for policyMappings certificate extension.
[Steve Henson]
- *) 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]
-
*) 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
differing sizes.
[Richard Levitte]
- Changes between 0.9.7c and 0.9.7d [xx XXX XXXX]
+ Changes between 0.9.7d and 0.9.7e [XX xxx XXXX]
+
+ *) 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 (CAN-2004-0079)
+ [Joe Orton, Steve Henson]
+
+ *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
+ (CAN-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]
between threads, blinding will still be very fast).
[Bodo Moeller]
-yet to be integrated into this CVS branch:
-- Geoff's ENGINE_set_default() fix
+ *) 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.
*) Clean old EAY MD5 hack from e_os.h.
[Richard Levitte]
- Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
+ Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
- *) Fix various bugs revealed by running the NISCC test suite:
+ *) Fix null-pointer assignment in do_change_cipher_spec() revealed
+ by using the Codenomicon TLS Test Tool (CAN-2004-0079)
+ [Joe Orton, Steve Henson]
- Stop out of bounds reads in the ASN1 code when presented with
- invalid tags (CAN-2003-0543 and CAN-2003-0544).
-
- If verify callback ignores invalid public key errors don't try to check
- certificate signature with the NULL public key.
+ 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 (CAN-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
projects / openssl.git / blobdiff