X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=CHANGES;h=749bc19f7e97bfde9c2021a3a18a6521de44f5c6;hp=2d7c5b5f5082729c3958ea7f360fce27b14375cc;hb=f0dc08e6564df980f3c38965f6f85c7c807cfbb8;hpb=df29cc8f77bcf09cdd245feeaea452f5f91e4125 diff --git a/CHANGES b/CHANGES index 2d7c5b5f50..749bc19f7e 100644 --- a/CHANGES +++ b/CHANGES @@ -2,15 +2,120 @@ 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] + + *) Support for directoryName in GeneralName related extensions + in config files. + [Steve Henson] + + *) 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 + 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 + place of callback/argument pairs. The new API functions have "_ex" + postfixes and the older functions are reimplemented as wrappers for + the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide + declarations of the old functions to help (graceful) attempts to + migrate to the new functions. Also, the new key-generation API + 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 + available to TLS with the number defined in + draft-ietf-tls-compression-04.txt. + [Richard Levitte] *) Add the ASN.1 structures and functions for CertificatePair, which 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". @@ -333,7 +438,136 @@ TODO: bug: pad x with leading zeros if necessary EC_GROUP_get_nid() [Nils Larsch 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 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 , + Nils Larsch 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 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 ] + + 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 + octet was ignored consequently. As a result SSLv2 client side session + caching could not have worked due to the session ID mismatch between + client and server. + Behaviour observed by Crispin Flowerday as + PR #377. + [Lutz Jaenicke] + + *) Change the declaration of needed Kerberos libraries to use EX_LIBS + instead of the special (and badly supported) LIBKRB5. LIBKRB5 is + removed entirely. + [Richard Levitte] + + *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it + seems that in spite of existing for more than a year, many application + author have done nothing to provide the necessary callbacks, which + means that this particular engine will not work properly anywhere. + This is a very unfortunate situation which forces us, in the name + of usability, to give the hw_ncipher.c a static lock, which is part + of libcrypto. + NOTE: This is for the 0.9.7 series ONLY. This hack will never + appear in 0.9.8 or later. We EXPECT application authors to have + dealt properly with this when 0.9.8 is released (unless we actually + make such changes in the libcrypto locking code that changes will + have to be made anyway). + [Richard Levitte] + + *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content + octets have been read, EOF or an error occurs. Without this change + some truncated ASN1 structures will not produce an error. + [Steve Henson] *) Disable Heimdal support, since it hasn't been fully implemented. Still give the possibility to force the use of Heimdal, but with @@ -475,7 +709,7 @@ TODO: bug: pad x with leading zeros if necessary # 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 @@ -1975,6 +2209,11 @@ des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k be reduced modulo m. [Lenka Fibikova , 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 @@ -1983,6 +2222,7 @@ des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 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 @@ -2114,7 +2354,19 @@ des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k *) Clean old EAY MD5 hack from e_os.h. [Richard Levitte] - Changes between 0.9.6g and 0.9.6h [xx XXX xxxx] + 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 memory from it's contents. This is done with a counter that will