OpenSSL CHANGES
_______________
- Changes between 0.9.7 and 0.9.8 [xx XXX 2002]
+ Changes between 0.9.7a and 0.9.8 [xx XXX xxxx]
+
+ *) Make it possible to link applications using Makefile.shared.
+ Make that possible even when linking against static libraries!
+ [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.
+ [Steve Henson]
+
+ *) 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
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
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 -- }
+ 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".
EC_GROUP_get_nid()
[Nils Larsch <nla@trustcenter.de, Bodo Moeller]
- Changes between 0.9.6h and 0.9.7 [XX xxx 2002]
+ *) 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 0.9.7a and 0.9.7b [xx XXX 2003]
+
+ *) 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. (CAN-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]
*) 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
# 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 -o -type l) | while read F; do
+ (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
mkdir -p `dirname $F`
ln -s $OPENSSL_SOURCE/$F $F
done
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
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
*) Clean old EAY MD5 hack from e_os.h.
[Richard Levitte]
+ 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. (CAN-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
projects / openssl.git / blobdiff