OpenSSL CHANGES
_______________
- Changes between 0.9.6 and 0.9.7 [xx XXX 2001]
+ Changes between 0.9.7 and 0.9.8 [xx XXX 2002]
+
+ *) Add a function EC_GROUP_check_discriminant() (defined via
+ EC_METHOD) that verifies that the curve discriminant is non-zero.
+
+ Add a function EC_GROUP_check() that makes some sanity tests
+ on a EC_GROUP, its generator and order. This includes
+ EC_GROUP_check_discriminant().
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Add ECDSA in new directory crypto/ecdsa/.
+
+ Add applications 'openssl ecdsaparam' and 'openssl ecdsa'
+ (these are variants of 'openssl dsaparam' and 'openssl dsa').
+
+ ECDSA support is also included in various other files across the
+ library. Most notably,
+ - 'openssl req' now has a '-newkey ecdsa:file' option;
+ - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
+ - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
+ d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
+ them suitable for ECDSA where domain parameters must be
+ extracted before the specific public key.
+ [Nils Larsch <nla@trustcenter.de>]
+
+ *) Include some named elliptic curves, and add OIDs from X9.62,
+ SECG, and WAP/WTLS. The curves can be obtained from the new
+ functions
+ EC_GROUP_new_by_nid()
+ EC_GROUP_new_by_name()
+ Also add a 'nid' field to EC_GROUP objects, which can be accessed
+ via
+ EC_GROUP_set_nid()
+ EC_GROUP_get_nid()
+ [Nils Larsch <nla@trustcenter.de, Bodo Moeller]
+
+ Changes between 0.9.6 and 0.9.7 [xx XXX 2002]
- OpenSSL 0.9.6a/0.9.6b (bugfix releases, 5 Apr 2001 and 9 July 2001)
- and OpenSSL 0.9.7 were developed in parallel, based on OpenSSL 0.9.6.
+ OpenSSL 0.9.6a/0.9.6b/0.9.6c/0.9.6d (bugfix releases, 5 Apr 2001,
+ 9 July 2001, 21 Dec 2001 and xx XXX 2002) and OpenSSL 0.9.7 were
+ developed in parallel, based on OpenSSL 0.9.6.
Change log entries are tagged as follows:
- -) applies to 0.9.6a/0.9.6b/0.9.6c only
- *) applies to 0.9.6a/0.9.6b/0.9.6c and 0.9.7
+ -) applies to 0.9.6a ... 0.9.6d only
+ *) applies to 0.9.6a ... 0.9.6d and 0.9.7
+) applies to 0.9.7 only
+ *) Fix object definitions for Private and Enterprise: they were not
+ recognized in their shortname (=lowercase) representation. Extend
+ obj_dat.pl to issue an error when using undefined keywords instead
+ of silently ignoring the problem (Svenning Sorensen
+ <sss@sss.dnsalias.net>).
+ [Lutz Jaenicke]
+
+ +) Make object definitions compliant to LDAP (RFC2256): SN is the short
+ form for "surname", serialNumber has no short form (Michael Bell
+ <michael.bell@rz.hu-berlin.de>).
+ [Lutu Jaenicke]
+
+ *) Fix DH_generate_parameters() so that it works for 'non-standard'
+ generators, i.e. generators other than 2 and 5. (Previously, the
+ code did not properly initialise the 'add' and 'rem' values to
+ BN_generate_prime().)
+
+ In the new general case, we do not insist that 'generator' is
+ actually a primitive root: This requirement is rather pointless;
+ a generator of the order-q subgroup is just as good, if not
+ better.
+ [Bodo Moeller]
+
+ *) Map new X509 verification errors to alerts. Discovered and submitted by
+ Tom Wu <tom@arcot.com>.
+ [Lutz Jaenicke]
+
+ *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
+ returning non-zero before the data has been completely received
+ when using non-blocking I/O.
+ [Bodo Moeller; problem pointed out by John Hughes]
+
+ *) Some of the ciphers missed the strength entry (SSL_LOW etc).
+ [Ben Laurie, Lutz Jaenicke]
+
+ +) Add an "init" command to the ENGINE config module and auto initialize
+ ENGINEs. Without any "init" command the ENGINE will be initialized
+ after all ctrl commands have been executed on it. If init=1 the
+ ENGINE is initailized at that point (ctrls before that point are run
+ on the uninitialized ENGINE and after on the initialized one). If
+ init=0 then the ENGINE will not be iniatialized at all.
+ [Steve Henson]
+
+ +) Fix the 'app_verify_callback' interface so that the user-defined
+ argument is actually passed to the callback: In the
+ SSL_CTX_set_cert_verify_callback() prototype, the callback
+ declaration has been changed from
+ int (*cb)()
+ into
+ int (*cb)(X509_STORE_CTX *,void *);
+ in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
+ i=s->ctx->app_verify_callback(&ctx)
+ has been changed into
+ i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
+
+ To update applications using SSL_CTX_set_cert_verify_callback(),
+ a dummy argument can be added to their callback functions.
+ [D. K. Smetters <smetters@parc.xerox.com>]
+
+ +) Added the '4758cca' ENGINE to support IBM 4758 cards.
+ [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
+
+ *) Fix bug in SSL_clear(): bad sessions were not removed (found by
+ Yoram Zahavi <YoramZ@gilian.com>).
+ [Lutz Jaenicke]
+
+ +) Add and OPENSSL_LOAD_CONF define which will cause
+ OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
+ This allows older applications to transparently support certain
+ OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
+ Two new functions OPENSSL_add_all_algorithms_noconf() which will never
+ load the config file and OPENSSL_add_all_algorithms_conf() which will
+ always load it have also been added.
+ [Steve Henson]
+
+ +) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
+ Adjust NIDs and EVP layer.
+ [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
+
+ +) Config modules support in openssl utility.
+
+ Most commands now load modules from the config file,
+ though in a few (such as version) this isn't done
+ because it couldn't be used for anything.
+
+ In the case of ca and req the config file used is
+ the same as the utility itself: that is the -config
+ command line option can be used to specify an
+ alternative file.
+ [Steve Henson]
+
+ +) Move default behaviour from OPENSSL_config(). If appname is NULL
+ use "openssl_conf" if filename is NULL use default openssl config file.
+ [Steve Henson]
+
+ +) Add an argument to OPENSSL_config() to allow the use of an alternative
+ config section name. Add a new flag to tolerate a missing config file
+ and move code to CONF_modules_load_file().
+ [Steve Henson]
+
+ *) Add information about CygWin 1.3 and on, and preserve proper
+ configuration for the versions before that.
+ [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
+
+ *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
+ check whether we deal with a copy of a session and do not delete from
+ the cache in this case. Problem reported by "Izhar Shoshani Levi"
+ <izhar@checkpoint.com>.
+ [Lutz Jaenicke]
+
+ *) Do not store session data into the internal session cache, if it
+ is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
+ flag is set). Proposed by Aslam <aslam@funk.com>.
+ [Lutz Jaenicke]
+
+ +) Support for crypto accelerator cards from Accelerated Encryption
+ Processing, www.aep.ie. (Use engine 'aep')
+ The support was copied from 0.9.6c [engine] and adapted/corrected
+ to work with the new engine framework.
+ [AEP Inc. and Richard Levitte]
+
+ +) Support for SureWare crypto accelerator cards from Baltimore
+ Technologies. (Use engine 'sureware')
+ The support was copied from 0.9.6c [engine] and adapted
+ to work with the new engine framework.
+ [Richard Levitte]
+
+ *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
+ value is 0.
+ [Richard Levitte]
+
+ +) Have the CHIL engine fork-safe (as defined by nCipher) and actually
+ make the newer ENGINE framework commands for the CHIL engine work.
+ [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
+
+ +) Make it possible to produce shared libraries on ReliantUNIX.
+ [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
+
+ *) Add the configuration target linux-s390x.
+ [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
+
+ +) Add the configuration target debug-linux-ppro.
+ Make 'openssl rsa' use the general key loading routines
+ implemented in apps.c, and make those routines able to
+ handle the key format FORMAT_NETSCAPE and the variant
+ FORMAT_IISSGC.
+ [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
+
+ *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
+ [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
+
+ +) Add -keyform to rsautl, and document -engine.
+ [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
+
+ +) Change BIO_new_file (crypto/bio/bss_file.c) to use new
+ BIO_R_NO_SUCH_FILE error code rather than the generic
+ ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
+ [Ben Laurie]
+
+ +) Add new functions
+ ERR_peek_last_error
+ ERR_peek_last_error_line
+ ERR_peek_last_error_line_data.
+ These are similar to
+ ERR_peek_error
+ ERR_peek_error_line
+ ERR_peek_error_line_data,
+ but report on the latest error recorded rather than the first one
+ still in the error queue.
+ [Ben Laurie, Bodo Moeller]
+
+ +) default_algorithms option in ENGINE config module. This allows things
+ like:
+ default_algorithms = ALL
+ default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
+ [Steve Henson]
+
+ +) Prelminary ENGINE config module.
+ [Steve Henson]
+
+ *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
+ ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
+ variable as an indication that a ClientHello message has been
+ received. As the flag value will be lost between multiple
+ invocations of ssl3_accept when using non-blocking I/O, the
+ function may not be aware that a handshake has actually taken
+ place, thus preventing a new session from being added to the
+ session cache.
+
+ To avoid this problem, we now set s->new_session to 2 instead of
+ using a local variable.
+ [Lutz Jaenicke, Bodo Moeller]
+
*) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
if the SSL_R_LENGTH_MISMATCH error is detected.
[Geoff Thorpe, Bodo Moeller]
[Bodo Moeller]
+) Change all functions with names starting with des_ to be starting
- with DES_ instead. This because there are increasing clashes with
- libdes and other des libraries that are currently used by other
- projects. The old libdes interface is provided, as well as crypt(),
- if openssl/des_old.h is included. Note that crypt() is no longer
- declared in openssl/des.h.
+ with DES_ instead. Add wrappers that are compatible with libdes,
+ but are named _ossl_old_des_*. Finally, add macros that map the
+ des_* symbols to the corresponding _ossl_old_des_* if libdes
+ compatibility is desired. If OpenSSL 0.9.6c compatibility is
+ desired, the des_* symbols will be mapped to DES_*, with one
+ exception.
+
+ Since we provide two compatibility mappings, the user needs to
+ define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
+ compatibility is desired. The default (i.e., when that macro
+ isn't defined) is OpenSSL 0.9.6c compatibility.
+
+ There are also macros that enable and disable the support of old
+ des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
+ and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
+ are defined, the default will apply: to support the old des routines.
+
+ In either case, one must include openssl/des.h to get the correct
+ definitions. Do not try to just include openssl/des_old.h, that
+ won't work.
NOTE: This is a major break of an old API into a new one. Software
authors are encouraged to switch to the DES_ style functions. Some
time in the future, des_old.h and the libdes compatibility functions
- will be completely removed.
+ will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
+ default), and then completely removed.
[Richard Levitte]
*) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
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