5 Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
7 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
10 *) Use separate DRBG fields for internal and external flags. New function
11 FIPS_drbg_health_check() to perform on demand health checking. Add
12 generation tests to fips_test_suite with reduced health check interval to
13 demonstrate periodic health checking. Add "nodh" option to
14 fips_test_suite to skip very slow DH test.
17 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
21 *) More extensive health check for DRBG checking many more failure modes.
22 New function FIPS_selftest_drbg_all() to handle every possible DRBG
23 combination: call this in fips_test_suite.
26 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
27 and POST to handle Dual EC cases.
30 *) Add support for canonical generation of DSA parameter 'g'. See
33 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
34 POST to handle HMAC cases.
37 *) Add functions FIPS_module_version() and FIPS_module_version_text()
38 to return numberical and string versions of the FIPS module number.
41 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
42 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implmeneted
43 outside the validated module in the FIPS capable OpenSSL.
46 *) Minor change to DRBG entropy callback semantics. In some cases
47 there is no mutiple of the block length between min_len and
48 max_len. Allow the callback to return more than max_len bytes
49 of entropy but discard any extra: it is the callback's responsibility
50 to ensure that the extra data discarded does not impact the
51 requested amount of entropy.
54 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
55 information in FIPS186-3, SP800-57 and SP800-131A.
58 *) CCM support via EVP. Interface is very similar to GCM case except we
59 must supply all data in one chunk (i.e. no update, final) and the
60 message length must be supplied if AAD is used. Add algorithm test
64 *) Initial version of POST overhaul. Add POST callback to allow the status
65 of POST to be monitored and/or failures induced. Modify fips_test_suite
66 to use callback. Always run all selftests even if one fails.
69 *) XTS support including algorithm test driver in the fips_gcmtest program.
70 Note: this does increase the maximum key length from 32 to 64 bytes but
71 there should be no binary compatibility issues as existing applications
72 will never use XTS mode.
75 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
76 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
77 performs algorithm blocking for unapproved PRNG types. Also do not
78 set PRNG type in FIPS_mode_set(): leave this to the application.
79 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
80 the standard OpenSSL PRNG: set additional data to a date time vector.
83 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
84 This shouldn't present any incompatibility problems because applications
85 shouldn't be using these directly and any that are will need to rethink
86 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
89 *) Extensive self tests and health checking required by SP800-90 DRBG.
90 Remove strength parameter from FIPS_drbg_instantiate and always
91 instantiate at maximum supported strength.
94 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
97 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
100 *) New function DH_compute_key_padded() to compute a DH key and pad with
101 leading zeroes if needed: this complies with SP800-56A et al.
104 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
105 anything, incomplete, subject to change and largely untested at present.
108 *) Modify fipscanisteronly build option to only build the necessary object
109 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
112 *) Add experimental option FIPSSYMS to give all symbols in
113 fipscanister.o and FIPS or fips prefix. This will avoid
114 conflicts with future versions of OpenSSL. Add perl script
115 util/fipsas.pl to preprocess assembly language source files
116 and rename any affected symbols.
119 *) Add selftest checks and algorithm block of non-fips algorithms in
120 FIPS mode. Remove DES2 from selftests.
123 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
124 return internal method without any ENGINE dependencies. Add new
125 tiny fips sign and verify functions.
128 *) New build option no-ec2m to disable characteristic 2 code.
131 *) New build option "fipscanisteronly". This only builds fipscanister.o
132 and (currently) associated fips utilities. Uses the file Makefile.fips
133 instead of Makefile.org as the prototype.
136 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
137 Update fips_gcmtest to use IV generator.
140 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
141 setting output buffer to NULL. The *Final function must be
142 called although it will not retrieve any additional data. The tag
143 can be set or retrieved with a ctrl. The IV length is by default 12
144 bytes (96 bits) but can be set to an alternative value. If the IV
145 length exceeds the maximum IV length (currently 16 bytes) it cannot be
149 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
150 underlying do_cipher function handles all cipher semantics itself
151 including padding and finalisation. This is useful if (for example)
152 an ENGINE cipher handles block padding itself. The behaviour of
153 do_cipher is subtly changed if this flag is set: the return value
154 is the number of characters written to the output buffer (zero is
155 no longer an error code) or a negative error code. Also if the
156 input buffer is NULL and length 0 finalisation should be performed.
159 *) If a candidate issuer certificate is already part of the constructed
160 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
163 *) Improve forward-security support: add functions
165 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
166 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
168 for use by SSL/TLS servers; the callback function will be called whenever a
169 new session is created, and gets to decide whether the session may be
170 cached to make it resumable (return 0) or not (return 1). (As by the
171 SSL/TLS protocol specifications, the session_id sent by the server will be
172 empty to indicate that the session is not resumable; also, the server will
173 not generate RFC 4507 (RFC 5077) session tickets.)
175 A simple reasonable callback implementation is to return is_forward_secure.
176 This parameter will be set to 1 or 0 depending on the ciphersuite selected
177 by the SSL/TLS server library, indicating whether it can provide forward
179 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
181 *) Add Next Protocol Negotiation,
182 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
183 disabled with a no-npn flag to config or Configure. Code donated
185 [Adam Langley <agl@google.com> and Ben Laurie]
187 *) New function OPENSSL_gmtime_diff to find the difference in days
188 and seconds between two tm structures. This will be used to provide
189 additional functionality for ASN1_TIME.
192 *) Add -trusted_first option which attempts to find certificates in the
193 trusted store even if an untrusted chain is also supplied.
196 *) Initial experimental support for explicitly trusted non-root CAs.
197 OpenSSL still tries to build a complete chain to a root but if an
198 intermediate CA has a trust setting included that is used. The first
199 setting is used: whether to trust or reject.
202 *) New -verify_name option in command line utilities to set verification
206 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
207 Add CMAC pkey methods.
210 *) Experimental regnegotiation in s_server -www mode. If the client
211 browses /reneg connection is renegotiated. If /renegcert it is
212 renegotiated requesting a certificate.
215 *) Add an "external" session cache for debugging purposes to s_server. This
216 should help trace issues which normally are only apparent in deployed
217 multi-process servers.
220 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
221 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
222 BIO_set_cipher() and some obscure PEM functions were changed so they
223 can now return an error. The RAND changes required a change to the
224 RAND_METHOD structure.
227 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
228 a gcc attribute to warn if the result of a function is ignored. This
229 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
230 whose return value is often ignored.
233 Changes between 1.0.0f and 1.0.1 [xx XXX xxxx]
235 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
236 NIST-P256, NIST-P521, with constant-time single point multiplication on
237 typical inputs. Compiler support for the nonstandard type __uint128_t is
238 required to use this (present in gcc 4.4 and later, for 64-bit builds).
239 Code made available under Apache License version 2.0.
241 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
242 line to include this in your build of OpenSSL, and run "make depend" (or
243 "make update"). This enables the following EC_METHODs:
245 EC_GFp_nistp224_method()
246 EC_GFp_nistp256_method()
247 EC_GFp_nistp521_method()
249 EC_GROUP_new_by_curve_name() will automatically use these (while
250 EC_GROUP_new_curve_GFp() currently prefers the more flexible
252 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
254 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
255 all platforms. Move ssize_t definition from e_os.h to the public
256 header file e_os2.h as it now appears in public header file cms.h
259 *) New -sigopt option to the ca, req and x509 utilities. Additional
260 signature parameters can be passed using this option and in
264 *) Add RSA PSS signing function. This will generate and set the
265 appropriate AlgorithmIdentifiers for PSS based on those in the
266 corresponding EVP_MD_CTX structure. No application support yet.
269 *) Support for companion algorithm specific ASN1 signing routines.
270 New function ASN1_item_sign_ctx() signs a pre-initialised
271 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
272 the appropriate parameters.
275 *) Add new algorithm specific ASN1 verification initialisation function
276 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
277 handling will be the same no matter what EVP_PKEY_METHOD is used.
278 Add a PSS handler to support verification of PSS signatures: checked
279 against a number of sample certificates.
282 *) Add signature printing for PSS. Add PSS OIDs.
283 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
285 *) Add algorithm specific signature printing. An individual ASN1 method
286 can now print out signatures instead of the standard hex dump.
288 More complex signatures (e.g. PSS) can print out more meaningful
289 information. Include DSA version that prints out the signature
293 *) Password based recipient info support for CMS library: implementing
297 *) Split password based encryption into PBES2 and PBKDF2 functions. This
298 neatly separates the code into cipher and PBE sections and is required
299 for some algorithms that split PBES2 into separate pieces (such as
303 *) Session-handling fixes:
304 - Fix handling of connections that are resuming with a session ID,
305 but also support Session Tickets.
306 - Fix a bug that suppressed issuing of a new ticket if the client
307 presented a ticket with an expired session.
308 - Try to set the ticket lifetime hint to something reasonable.
309 - Make tickets shorter by excluding irrelevant information.
310 - On the client side, don't ignore renewed tickets.
311 [Adam Langley, Bodo Moeller (Google)]
313 *) Fix PSK session representation.
316 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
318 This work was sponsored by Intel.
321 *) Add GCM support to TLS library. Some custom code is needed to split
322 the IV between the fixed (from PRF) and explicit (from TLS record)
323 portions. This adds all GCM ciphersuites supported by RFC5288 and
324 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
325 add a special AESGCM string for GCM only.
328 *) Expand range of ctrls for AES GCM. Permit setting invocation
329 field on decrypt and retrieval of invocation field only on encrypt.
332 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
333 As required by RFC5289 these ciphersuites cannot be used if for
334 versions of TLS earlier than 1.2.
337 *) For FIPS capable OpenSSL interpret a NULL default public key method
338 as unset and return the appopriate default but do *not* set the default.
339 This means we can return the appopriate method in applications that
340 swicth between FIPS and non-FIPS modes.
343 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
344 ENGINE is used then we cannot handle that in the FIPS module so we
345 keep original code iff non-FIPS operations are allowed.
348 *) Add -attime option to openssl verify.
349 [Peter Eckersley <pde@eff.org> and Ben Laurie]
351 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
354 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
355 FIPS EC methods unconditionally for now.
358 *) New build option no-ec2m to disable characteristic 2 code.
361 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
362 all cases can be covered as some introduce binary incompatibilities.
365 *) Redirect RSA operations to FIPS module including keygen,
366 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
369 *) Add similar low level API blocking to ciphers.
372 *) Low level digest APIs are not approved in FIPS mode: any attempt
373 to use these will cause a fatal error. Applications that *really* want
374 to use them can use the private_* version instead.
377 *) Redirect cipher operations to FIPS module for FIPS builds.
380 *) Redirect digest operations to FIPS module for FIPS builds.
383 *) Update build system to add "fips" flag which will link in fipscanister.o
384 for static and shared library builds embedding a signature if needed.
387 *) Output TLS supported curves in preference order instead of numerical
388 order. This is currently hardcoded for the highest order curves first.
389 This should be configurable so applications can judge speed vs strength.
392 *) Add TLS v1.2 server support for client authentication.
395 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
399 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
400 FIPS modules versions.
403 *) Add TLS v1.2 client side support for client authentication. Keep cache
404 of handshake records longer as we don't know the hash algorithm to use
405 until after the certificate request message is received.
408 *) Initial TLS v1.2 client support. Add a default signature algorithms
409 extension including all the algorithms we support. Parse new signature
410 format in client key exchange. Relax some ECC signing restrictions for
411 TLS v1.2 as indicated in RFC5246.
414 *) Add server support for TLS v1.2 signature algorithms extension. Switch
415 to new signature format when needed using client digest preference.
416 All server ciphersuites should now work correctly in TLS v1.2. No client
417 support yet and no support for client certificates.
420 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
421 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
422 ciphersuites. At present only RSA key exchange ciphersuites work with
423 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
424 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
425 and version checking.
428 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
429 with this defined it will not be affected by any changes to ssl internal
430 structures. Add several utility functions to allow openssl application
431 to work with OPENSSL_NO_SSL_INTERN defined.
435 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
437 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
440 *) Permit abbreviated handshakes when renegotiating using the function
441 SSL_renegotiate_abbreviated().
442 [Robin Seggelmann <seggelmann@fh-muenster.de>]
444 *) Add call to ENGINE_register_all_complete() to
445 ENGINE_load_builtin_engines(), so some implementations get used
446 automatically instead of needing explicit application support.
449 *) Add support for TLS key exporter as described in RFC5705.
450 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
452 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
453 a few changes are required:
455 Add SSL_OP_NO_TLSv1_1 flag.
457 Update version checking logic to handle version 1.1.
458 Add explicit IV handling (ported from DTLS code).
459 Add command line options to s_client/s_server.
462 Changes between 1.0.0e and 1.0.0f [xx XXX xxxx]
464 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
465 [Bob Buckholz (Google)]
467 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
469 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
470 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
471 [Kaspar Brand <ossl@velox.ch>]
473 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
474 for multi-threaded use of ECDH. (CVE-2011-3210)
475 [Adam Langley (Google)]
477 *) Fix x509_name_ex_d2i memory leak on bad inputs.
480 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
481 signature public key algorithm by using OID xref utilities instead.
482 Before this you could only use some ECC ciphersuites with SHA1 only.
485 *) Add protection against ECDSA timing attacks as mentioned in the paper
486 by Billy Bob Brumley and Nicola Tuveri, see:
488 http://eprint.iacr.org/2011/232.pdf
490 [Billy Bob Brumley and Nicola Tuveri]
492 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
494 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
495 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
497 *) Fix bug in string printing code: if *any* escaping is enabled we must
498 escape the escape character (backslash) or the resulting string is
502 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
504 *) Disable code workaround for ancient and obsolete Netscape browsers
505 and servers: an attacker can use it in a ciphersuite downgrade attack.
506 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
509 *) Fixed J-PAKE implementation error, originally discovered by
510 Sebastien Martini, further info and confirmation from Stefan
511 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
514 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
516 *) Fix extension code to avoid race conditions which can result in a buffer
517 overrun vulnerability: resumed sessions must not be modified as they can
518 be shared by multiple threads. CVE-2010-3864
521 *) Fix WIN32 build system to correctly link an ENGINE directory into
525 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
527 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
529 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
531 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
533 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
534 context. The operation can be customised via the ctrl mechanism in
535 case ENGINEs want to include additional functionality.
538 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
541 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
542 output hashes compatible with older versions of OpenSSL.
543 [Willy Weisz <weisz@vcpc.univie.ac.at>]
545 *) Fix compression algorithm handling: if resuming a session use the
546 compression algorithm of the resumed session instead of determining
547 it from client hello again. Don't allow server to change algorithm.
550 *) Add load_crls() function to apps tidying load_certs() too. Add option
551 to verify utility to allow additional CRLs to be included.
554 *) Update OCSP request code to permit adding custom headers to the request:
555 some responders need this.
558 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
560 [Julia Lawall <julia@diku.dk>]
562 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
563 needlessly dereferenced structures, used obsolete functions and
564 didn't handle all updated verify codes correctly.
567 *) Disable MD2 in the default configuration.
570 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
571 indicate the initial BIO being pushed or popped. This makes it possible
572 to determine whether the BIO is the one explicitly called or as a result
573 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
574 it handles reference counts correctly and doesn't zero out the I/O bio
575 when it is not being explicitly popped. WARNING: applications which
576 included workarounds for the old buggy behaviour will need to be modified
577 or they could free up already freed BIOs.
580 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
581 renaming to all platforms (within the 0.9.8 branch, this was
582 done conditionally on Netware platforms to avoid a name clash).
583 [Guenter <lists@gknw.net>]
585 *) Add ECDHE and PSK support to DTLS.
586 [Michael Tuexen <tuexen@fh-muenster.de>]
588 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
592 *) Add "missing" function EVP_MD_flags() (without this the only way to
593 retrieve a digest flags is by accessing the structure directly. Update
594 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
595 or cipher is registered as in the "from" argument. Print out all
596 registered digests in the dgst usage message instead of manually
597 attempting to work them out.
600 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
601 this allows the use of compression and extensions. Change default cipher
602 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
603 by default unless an application cipher string requests it.
606 *) Alter match criteria in PKCS12_parse(). It used to try to use local
607 key ids to find matching certificates and keys but some PKCS#12 files
608 don't follow the (somewhat unwritten) rules and this strategy fails.
609 Now just gather all certificates together and the first private key
610 then look for the first certificate that matches the key.
613 *) Support use of registered digest and cipher names for dgst and cipher
614 commands instead of having to add each one as a special case. So now
621 openssl dgst -sha256 foo
623 and this works for ENGINE based algorithms too.
627 *) Update Gost ENGINE to support parameter files.
628 [Victor B. Wagner <vitus@cryptocom.ru>]
630 *) Support GeneralizedTime in ca utility.
631 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
633 *) Enhance the hash format used for certificate directory links. The new
634 form uses the canonical encoding (meaning equivalent names will work
635 even if they aren't identical) and uses SHA1 instead of MD5. This form
636 is incompatible with the older format and as a result c_rehash should
637 be used to rebuild symbolic links.
640 *) Make PKCS#8 the default write format for private keys, replacing the
641 traditional format. This form is standardised, more secure and doesn't
642 include an implicit MD5 dependency.
645 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
646 committed to OpenSSL should pass this lot as a minimum.
649 *) Add session ticket override functionality for use by EAP-FAST.
650 [Jouni Malinen <j@w1.fi>]
652 *) Modify HMAC functions to return a value. Since these can be implemented
653 in an ENGINE errors can occur.
656 *) Type-checked OBJ_bsearch_ex.
659 *) Type-checked OBJ_bsearch. Also some constification necessitated
660 by type-checking. Still to come: TXT_DB, bsearch(?),
661 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
665 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
666 seconds to a tm structure directly, instead of going through OS
667 specific date routines. This avoids any issues with OS routines such
668 as the year 2038 bug. New *_adj() functions for ASN1 time structures
669 and X509_time_adj_ex() to cover the extended range. The existing
670 X509_time_adj() is still usable and will no longer have any date issues.
673 *) Delta CRL support. New use deltas option which will attempt to locate
674 and search any appropriate delta CRLs available.
676 This work was sponsored by Google.
679 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
680 code and add additional score elements. Validate alternate CRL paths
681 as part of the CRL checking and indicate a new error "CRL path validation
682 error" in this case. Applications wanting additional details can use
683 the verify callback and check the new "parent" field. If this is not
684 NULL CRL path validation is taking place. Existing applications wont
685 see this because it requires extended CRL support which is off by
688 This work was sponsored by Google.
691 *) Support for freshest CRL extension.
693 This work was sponsored by Google.
696 *) Initial indirect CRL support. Currently only supported in the CRLs
697 passed directly and not via lookup. Process certificate issuer
698 CRL entry extension and lookup CRL entries by bother issuer name
699 and serial number. Check and process CRL issuer entry in IDP extension.
701 This work was sponsored by Google.
704 *) Add support for distinct certificate and CRL paths. The CRL issuer
705 certificate is validated separately in this case. Only enabled if
706 an extended CRL support flag is set: this flag will enable additional
707 CRL functionality in future.
709 This work was sponsored by Google.
712 *) Add support for policy mappings extension.
714 This work was sponsored by Google.
717 *) Fixes to pathlength constraint, self issued certificate handling,
718 policy processing to align with RFC3280 and PKITS tests.
720 This work was sponsored by Google.
723 *) Support for name constraints certificate extension. DN, email, DNS
724 and URI types are currently supported.
726 This work was sponsored by Google.
729 *) To cater for systems that provide a pointer-based thread ID rather
730 than numeric, deprecate the current numeric thread ID mechanism and
731 replace it with a structure and associated callback type. This
732 mechanism allows a numeric "hash" to be extracted from a thread ID in
733 either case, and on platforms where pointers are larger than 'long',
734 mixing is done to help ensure the numeric 'hash' is usable even if it
735 can't be guaranteed unique. The default mechanism is to use "&errno"
736 as a pointer-based thread ID to distinguish between threads.
738 Applications that want to provide their own thread IDs should now use
739 CRYPTO_THREADID_set_callback() to register a callback that will call
740 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
742 Note that ERR_remove_state() is now deprecated, because it is tied
743 to the assumption that thread IDs are numeric. ERR_remove_state(0)
744 to free the current thread's error state should be replaced by
745 ERR_remove_thread_state(NULL).
747 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
748 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
749 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
750 application was previously providing a numeric thread callback that
751 was inappropriate for distinguishing threads, then uniqueness might
752 have been obtained with &errno that happened immediately in the
753 intermediate development versions of OpenSSL; this is no longer the
754 case, the numeric thread callback will now override the automatic use
756 [Geoff Thorpe, with help from Bodo Moeller]
758 *) Initial support for different CRL issuing certificates. This covers a
759 simple case where the self issued certificates in the chain exist and
760 the real CRL issuer is higher in the existing chain.
762 This work was sponsored by Google.
765 *) Removed effectively defunct crypto/store from the build.
768 *) Revamp of STACK to provide stronger type-checking. Still to come:
769 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
770 ASN1_STRING, CONF_VALUE.
773 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
774 RAM on SSL connections. This option can save about 34k per idle SSL.
777 *) Revamp of LHASH to provide stronger type-checking. Still to come:
778 STACK, TXT_DB, bsearch, qsort.
781 *) Initial support for Cryptographic Message Syntax (aka CMS) based
782 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
783 support for data, signedData, compressedData, digestedData and
784 encryptedData, envelopedData types included. Scripts to check against
785 RFC4134 examples draft and interop and consistency checks of many
786 content types and variants.
789 *) Add options to enc utility to support use of zlib compression BIO.
792 *) Extend mk1mf to support importing of options and assembly language
793 files from Configure script, currently only included in VC-WIN32.
794 The assembly language rules can now optionally generate the source
795 files from the associated perl scripts.
798 *) Implement remaining functionality needed to support GOST ciphersuites.
799 Interop testing has been performed using CryptoPro implementations.
800 [Victor B. Wagner <vitus@cryptocom.ru>]
802 *) s390x assembler pack.
805 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
809 *) Implement Opaque PRF Input TLS extension as specified in
810 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
811 official specification yet and no extension type assignment by
812 IANA exists, this extension (for now) will have to be explicitly
813 enabled when building OpenSSL by providing the extension number
814 to use. For example, specify an option
816 -DTLSEXT_TYPE_opaque_prf_input=0x9527
818 to the "config" or "Configure" script to enable the extension,
819 assuming extension number 0x9527 (which is a completely arbitrary
820 and unofficial assignment based on the MD5 hash of the Internet
821 Draft). Note that by doing so, you potentially lose
822 interoperability with other TLS implementations since these might
823 be using the same extension number for other purposes.
825 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
826 opaque PRF input value to use in the handshake. This will create
827 an interal copy of the length-'len' string at 'src', and will
828 return non-zero for success.
830 To get more control and flexibility, provide a callback function
833 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
834 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
838 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
841 Callback function 'cb' will be called in handshakes, and is
842 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
843 Argument 'arg' is for application purposes (the value as given to
844 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
845 be provided to the callback function). The callback function
846 has to return non-zero to report success: usually 1 to use opaque
847 PRF input just if possible, or 2 to enforce use of the opaque PRF
848 input. In the latter case, the library will abort the handshake
849 if opaque PRF input is not successfully negotiated.
851 Arguments 'peerinput' and 'len' given to the callback function
852 will always be NULL and 0 in the case of a client. A server will
853 see the client's opaque PRF input through these variables if
854 available (NULL and 0 otherwise). Note that if the server
855 provides an opaque PRF input, the length must be the same as the
856 length of the client's opaque PRF input.
858 Note that the callback function will only be called when creating
859 a new session (session resumption can resume whatever was
860 previously negotiated), and will not be called in SSL 2.0
861 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
862 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
863 for applications that need to enforce opaque PRF input.
867 *) Update ssl code to support digests other than SHA1+MD5 for handshake
870 [Victor B. Wagner <vitus@cryptocom.ru>]
872 *) Add RFC4507 support to OpenSSL. This includes the corrections in
873 RFC4507bis. The encrypted ticket format is an encrypted encoded
874 SSL_SESSION structure, that way new session features are automatically
877 If a client application caches session in an SSL_SESSION structure
878 support is transparent because tickets are now stored in the encoded
881 The SSL_CTX structure automatically generates keys for ticket
882 protection in servers so again support should be possible
883 with no application modification.
885 If a client or server wishes to disable RFC4507 support then the option
886 SSL_OP_NO_TICKET can be set.
888 Add a TLS extension debugging callback to allow the contents of any client
889 or server extensions to be examined.
891 This work was sponsored by Google.
894 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
895 OpenSSL should now compile cleanly on gcc 4.2
896 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
898 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
899 support including streaming MAC support: this is required for GOST
901 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
903 *) Add option -stream to use PKCS#7 streaming in smime utility. New
904 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
905 to output in BER and PEM format.
908 *) Experimental support for use of HMAC via EVP_PKEY interface. This
909 allows HMAC to be handled via the EVP_DigestSign*() interface. The
910 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
911 ENGINE support for HMAC keys which are unextractable. New -mac and
912 -macopt options to dgst utility.
915 *) New option -sigopt to dgst utility. Update dgst to use
916 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
917 alternative signing paramaters such as X9.31 or PSS in the dgst
921 *) Change ssl_cipher_apply_rule(), the internal function that does
922 the work each time a ciphersuite string requests enabling
923 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
924 removing ("!foo+bar") a class of ciphersuites: Now it maintains
925 the order of disabled ciphersuites such that those ciphersuites
926 that most recently went from enabled to disabled not only stay
927 in order with respect to each other, but also have higher priority
928 than other disabled ciphersuites the next time ciphersuites are
931 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
932 the same ciphersuites as with "HIGH" alone, but in a specific
933 order where the PSK ciphersuites come first (since they are the
934 most recently disabled ciphersuites when "HIGH" is parsed).
936 Also, change ssl_create_cipher_list() (using this new
937 funcionality) such that between otherwise identical
938 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
942 *) Change ssl_create_cipher_list() so that it automatically
943 arranges the ciphersuites in reasonable order before starting
944 to process the rule string. Thus, the definition for "DEFAULT"
945 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
946 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
947 This makes it much easier to arrive at a reasonable default order
948 in applications for which anonymous ciphers are OK (meaning
949 that you can't actually use DEFAULT).
950 [Bodo Moeller; suggested by Victor Duchovni]
952 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
953 processing) into multiple integers instead of setting
954 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
955 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
956 (These masks as well as the individual bit definitions are hidden
957 away into the non-exported interface ssl/ssl_locl.h, so this
958 change to the definition of the SSL_CIPHER structure shouldn't
959 affect applications.) This give us more bits for each of these
960 categories, so there is no longer a need to coagulate AES128 and
961 AES256 into a single algorithm bit, and to coagulate Camellia128
962 and Camellia256 into a single algorithm bit, which has led to all
965 Thus, among other things, the kludge introduced in 0.9.7m and
966 0.9.8e for masking out AES256 independently of AES128 or masking
967 out Camellia256 independently of AES256 is not needed here in 0.9.9.
969 With the change, we also introduce new ciphersuite aliases that
970 so far were missing: "AES128", "AES256", "CAMELLIA128", and
974 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
975 Use the leftmost N bytes of the signature input if the input is
976 larger than the prime q (with N being the size in bytes of q).
979 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
980 it yet and it is largely untested.
983 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
986 *) Initial incomplete changes to avoid need for function casts in OpenSSL
987 some compilers (gcc 4.2 and later) reject their use. Safestack is
988 reimplemented. Update ASN1 to avoid use of legacy functions.
991 *) Win32/64 targets are linked with Winsock2.
994 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
995 to external functions. This can be used to increase CRL handling
996 efficiency especially when CRLs are very large by (for example) storing
997 the CRL revoked certificates in a database.
1000 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1001 new CRLs added to a directory can be used. New command line option
1002 -verify_return_error to s_client and s_server. This causes real errors
1003 to be returned by the verify callback instead of carrying on no matter
1004 what. This reflects the way a "real world" verify callback would behave.
1007 *) GOST engine, supporting several GOST algorithms and public key formats.
1008 Kindly donated by Cryptocom.
1011 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1012 partitioned by DP are handled but no indirect CRL or reason partitioning
1013 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1014 selected via a scoring technique which handles IDP and AKID in CRLs.
1017 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1018 will ultimately be used for all verify operations: this will remove the
1019 X509_STORE dependency on certificate verification and allow alternative
1020 lookup methods. X509_STORE based implementations of these two callbacks.
1023 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1024 Modify get_crl() to find a valid (unexpired) CRL if possible.
1027 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1028 this would be called X509_CRL_cmp() but that name is already used by
1029 a function that just compares CRL issuer names. Cache several CRL
1030 extensions in X509_CRL structure and cache CRLDP in X509.
1033 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1034 this maps equivalent X509_NAME structures into a consistent structure.
1035 Name comparison can then be performed rapidly using memcmp().
1038 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1042 *) Allow digests to supply their own micalg string for S/MIME type using
1043 the ctrl EVP_MD_CTRL_MICALG.
1046 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1047 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1048 ctrl. It can then customise the structure before and/or after signing
1052 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1053 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1054 to free up any added signature OIDs.
1057 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1058 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1059 digest and cipher tables. New options added to openssl utility:
1060 list-message-digest-algorithms and list-cipher-algorithms.
1063 *) Change the array representation of binary polynomials: the list
1064 of degrees of non-zero coefficients is now terminated with -1.
1065 Previously it was terminated with 0, which was also part of the
1066 value; thus, the array representation was not applicable to
1067 polynomials where t^0 has coefficient zero. This change makes
1068 the array representation useful in a more general context.
1071 *) Various modifications and fixes to SSL/TLS cipher string
1072 handling. For ECC, the code now distinguishes between fixed ECDH
1073 with RSA certificates on the one hand and with ECDSA certificates
1074 on the other hand, since these are separate ciphersuites. The
1075 unused code for Fortezza ciphersuites has been removed.
1077 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1078 (not "ECDHE"). For consistency with the code for DH
1079 certificates, use of ECDH certificates is now considered ECDH
1080 authentication, not RSA or ECDSA authentication (the latter is
1081 merely the CA's signing algorithm and not actively used in the
1084 The temporary ciphersuite alias "ECCdraft" is no longer
1085 available, and ECC ciphersuites are no longer excluded from "ALL"
1086 and "DEFAULT". The following aliases now exist for RFC 4492
1087 ciphersuites, most of these by analogy with the DH case:
1089 kECDHr - ECDH cert, signed with RSA
1090 kECDHe - ECDH cert, signed with ECDSA
1091 kECDH - ECDH cert (signed with either RSA or ECDSA)
1092 kEECDH - ephemeral ECDH
1093 ECDH - ECDH cert or ephemeral ECDH
1099 AECDH - anonymous ECDH
1100 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1104 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1105 Use correct micalg parameters depending on digest(s) in signed message.
1108 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1109 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1112 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1113 an engine to register a method. Add ENGINE lookups for methods and
1114 functional reference processing.
1117 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1118 EVP_{Sign,Verify}* which allow an application to customise the signature
1122 *) New -resign option to smime utility. This adds one or more signers
1123 to an existing PKCS#7 signedData structure. Also -md option to use an
1124 alternative message digest algorithm for signing.
1127 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1128 create PKCS7 structures containing multiple signers. Update smime
1129 application to support multiple signers.
1132 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1136 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1137 Reorganize PBE internals to lookup from a static table using NIDs,
1138 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1139 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1140 PRF which will be automatically used with PBES2.
1143 *) Replace the algorithm specific calls to generate keys in "req" with the
1147 *) Update PKCS#7 enveloped data routines to use new API. This is now
1148 supported by any public key method supporting the encrypt operation. A
1149 ctrl is added to allow the public key algorithm to examine or modify
1150 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1154 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1155 a default digest type to use. In most cases this will be SHA1 but some
1156 algorithms (such as GOST) need to specify an alternative digest. The
1157 return value indicates how strong the prefernce is 1 means optional and
1158 2 is mandatory (that is it is the only supported type). Modify
1159 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1160 use the default md. Update openssl utilities to use the default digest
1161 type for signing if it is not explicitly indicated.
1164 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1165 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1166 signing method from the key type. This effectively removes the link
1167 between digests and public key types.
1170 *) Add an OID cross reference table and utility functions. Its purpose is to
1171 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1172 rsaEncryption. This will allow some of the algorithm specific hackery
1173 needed to use the correct OID to be removed.
1176 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1177 structures for PKCS7_sign(). They are now set up by the relevant public
1181 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1184 *) Add support for key derivation (agreement) in the API, DH method and
1188 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1189 public and private key formats. As a side effect these add additional
1190 command line functionality not previously available: DSA signatures can be
1191 generated and verified using pkeyutl and DH key support and generation in
1196 [Oliver Tappe <zooey@hirschkaefer.de>]
1198 *) New make target "install_html_docs" installs HTML renditions of the
1200 [Oliver Tappe <zooey@hirschkaefer.de>]
1202 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1203 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1204 support key and parameter generation and add initial key generation
1205 functionality for RSA.
1208 *) Add functions for main EVP_PKEY_method operations. The undocumented
1209 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1210 EVP_PKEY_{encrypt,decrypt}_old.
1213 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1214 key API, doesn't do much yet.
1217 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1218 public key algorithms. New option to openssl utility:
1219 "list-public-key-algorithms" to print out info.
1222 *) Implement the Supported Elliptic Curves Extension for
1223 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1226 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1227 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1230 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1231 utilities such as rsa, dsa, dsaparam etc except they process any key
1235 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1236 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1237 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1241 *) Initial support for pluggable public key ASN1.
1242 De-spaghettify the public key ASN1 handling. Move public and private
1243 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1244 algorithm specific handling to a single module within the relevant
1245 algorithm directory. Add functions to allow (near) opaque processing
1246 of public and private key structures.
1249 *) Implement the Supported Point Formats Extension for
1250 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1253 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1254 for the psk identity [hint] and the psk callback functions to the
1255 SSL_SESSION, SSL and SSL_CTX structure.
1258 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1262 SSL_CTX_use_psk_identity_hint
1263 SSL_get_psk_identity_hint
1264 SSL_get_psk_identity
1265 SSL_use_psk_identity_hint
1267 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1269 *) Add RFC 3161 compliant time stamp request creation, response generation
1270 and response verification functionality.
1271 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1273 *) Add initial support for TLS extensions, specifically for the server_name
1274 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1275 have new members for a host name. The SSL data structure has an
1276 additional member SSL_CTX *initial_ctx so that new sessions can be
1277 stored in that context to allow for session resumption, even after the
1278 SSL has been switched to a new SSL_CTX in reaction to a client's
1279 server_name extension.
1281 New functions (subject to change):
1283 SSL_get_servername()
1284 SSL_get_servername_type()
1287 New CTRL codes and macros (subject to change):
1289 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1290 - SSL_CTX_set_tlsext_servername_callback()
1291 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1292 - SSL_CTX_set_tlsext_servername_arg()
1293 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1295 openssl s_client has a new '-servername ...' option.
1297 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1298 '-key2 ...', '-servername_fatal' (subject to change). This allows
1299 testing the HostName extension for a specific single host name ('-cert'
1300 and '-key' remain fallbacks for handshakes without HostName
1301 negotiation). If the unrecogninzed_name alert has to be sent, this by
1302 default is a warning; it becomes fatal with the '-servername_fatal'
1305 [Peter Sylvester, Remy Allais, Christophe Renou]
1307 *) Whirlpool hash implementation is added.
1310 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1311 bn(64,32). Because of instruction set limitations it doesn't have
1312 any negative impact on performance. This was done mostly in order
1313 to make it possible to share assembler modules, such as bn_mul_mont
1314 implementations, between 32- and 64-bit builds without hassle.
1317 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1318 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1322 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1323 dedicated Montgomery multiplication procedure, is introduced.
1324 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1325 "64-bit" performance on certain 32-bit targets.
1328 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1329 in SSL structures. New SSL ctrl to set maximum send fragment size.
1330 Save memory by seeting the I/O buffer sizes dynamically instead of
1331 using the maximum available value.
1334 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1335 in addition to the text details.
1338 *) Very, very preliminary EXPERIMENTAL support for printing of general
1339 ASN1 structures. This currently produces rather ugly output and doesn't
1340 handle several customised structures at all.
1343 *) Integrated support for PVK file format and some related formats such
1344 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1345 these in the 'rsa' and 'dsa' utilities.
1348 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1351 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1352 place for the (very old) "NETSCAPE" format certificates which are now
1353 handled using new ASN1 code equivalents.
1356 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1357 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1358 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1361 *) Modify CRL distribution points extension code to print out previously
1362 unsupported fields. Enhance extension setting code to allow setting of
1366 *) Add print and set support for Issuing Distribution Point CRL extension.
1369 *) Change 'Configure' script to enable Camellia by default.
1372 Changes between 0.9.8r and 0.9.8s [xx XXX xxxx]
1374 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
1375 [Bob Buckholz (Google)]
1377 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1378 for multi-threaded use of ECDH.
1379 [Adam Langley (Google)]
1381 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1384 *) Add protection against ECDSA timing attacks as mentioned in the paper
1385 by Billy Bob Brumley and Nicola Tuveri, see:
1387 http://eprint.iacr.org/2011/232.pdf
1389 [Billy Bob Brumley and Nicola Tuveri]
1391 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1393 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1394 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1396 *) Fix bug in string printing code: if *any* escaping is enabled we must
1397 escape the escape character (backslash) or the resulting string is
1401 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1403 *) Disable code workaround for ancient and obsolete Netscape browsers
1404 and servers: an attacker can use it in a ciphersuite downgrade attack.
1405 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1408 *) Fixed J-PAKE implementation error, originally discovered by
1409 Sebastien Martini, further info and confirmation from Stefan
1410 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1413 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1415 *) Fix extension code to avoid race conditions which can result in a buffer
1416 overrun vulnerability: resumed sessions must not be modified as they can
1417 be shared by multiple threads. CVE-2010-3864
1420 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1423 *) Don't reencode certificate when calculating signature: cache and use
1424 the original encoding instead. This makes signature verification of
1425 some broken encodings work correctly.
1428 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1429 is also one of the inputs.
1430 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1432 *) Don't repeatedly append PBE algorithms to table if they already exist.
1433 Sort table on each new add. This effectively makes the table read only
1434 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1438 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1440 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1443 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1444 access or freeing data twice (CVE-2010-0742)
1445 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1447 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1448 common in certificates and some applications which only call
1449 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1453 Reduce copying into .apps and .test in makevms.com
1454 Don't try to use blank CA certificate in CA.com
1455 Allow use of C files from original directories in maketests.com
1456 [Steven M. Schweda" <sms@antinode.info>]
1458 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1460 *) When rejecting SSL/TLS records due to an incorrect version number, never
1461 update s->server with a new major version number. As of
1462 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1463 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1464 the previous behavior could result in a read attempt at NULL when
1465 receiving specific incorrect SSL/TLS records once record payload
1466 protection is active. (CVE-2010-0740)
1467 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1469 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1470 could be crashed if the relevant tables were not present (e.g. chrooted).
1471 [Tomas Hoger <thoger@redhat.com>]
1473 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1475 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1476 [Martin Olsson, Neel Mehta]
1478 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1479 accommodate for stack sorting, always a write lock!).
1482 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1483 excessive delays in the RAND_poll(): over a minute. As a workaround
1484 include a time check in the inner Heap32Next loop too.
1487 *) The code that handled flushing of data in SSL/TLS originally used the
1488 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1489 the problem outlined in PR#1949. The fix suggested there however can
1490 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1491 of Apache). So instead simplify the code to flush unconditionally.
1492 This should be fine since flushing with no data to flush is a no op.
1495 *) Handle TLS versions 2.0 and later properly and correctly use the
1496 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1497 off ancient servers have a habit of sticking around for a while...
1500 *) Modify compression code so it frees up structures without using the
1501 ex_data callbacks. This works around a problem where some applications
1502 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1503 restarting) then use compression (e.g. SSL with compression) later.
1504 This results in significant per-connection memory leaks and
1505 has caused some security issues including CVE-2008-1678 and
1509 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1510 change when encrypting or decrypting.
1513 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1514 connect and renegotiate with servers which do not support RI.
1515 Until RI is more widely deployed this option is enabled by default.
1518 *) Add "missing" ssl ctrls to clear options and mode.
1521 *) If client attempts to renegotiate and doesn't support RI respond with
1522 a no_renegotiation alert as required by RFC5746. Some renegotiating
1523 TLS clients will continue a connection gracefully when they receive
1524 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1525 waiting for a server hello which it will never receive. Now we treat a
1526 received no_renegotiation alert as a fatal error. This is because
1527 applications requesting a renegotiation might well expect it to succeed
1528 and would have no code in place to handle the server denying it so the
1529 only safe thing to do is to terminate the connection.
1532 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1533 peer supports secure renegotiation and 0 otherwise. Print out peer
1534 renegotiation support in s_client/s_server.
1537 *) Replace the highly broken and deprecated SPKAC certification method with
1538 the updated NID creation version. This should correctly handle UTF8.
1541 *) Implement RFC5746. Re-enable renegotiation but require the extension
1542 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1543 turns out to be a bad idea. It has been replaced by
1544 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1545 SSL_CTX_set_options(). This is really not recommended unless you
1546 know what you are doing.
1547 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1549 *) Fixes to stateless session resumption handling. Use initial_ctx when
1550 issuing and attempting to decrypt tickets in case it has changed during
1551 servername handling. Use a non-zero length session ID when attempting
1552 stateless session resumption: this makes it possible to determine if
1553 a resumption has occurred immediately after receiving server hello
1554 (several places in OpenSSL subtly assume this) instead of later in
1558 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1559 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1560 fixes for a few places where the return code is not checked
1562 [Julia Lawall <julia@diku.dk>]
1564 *) Add --strict-warnings option to Configure script to include devteam
1565 warnings in other configurations.
1568 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1569 makes it possible to install openssl libraries in locations which
1570 have names other than "lib", for example "/usr/lib64" which some
1572 [Steve Henson, based on patch from Jeremy Utley]
1574 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1575 X690 8.9.12 and can produce some misleading textual output of OIDs.
1576 [Steve Henson, reported by Dan Kaminsky]
1578 *) Delete MD2 from algorithm tables. This follows the recommendation in
1579 several standards that it is not used in new applications due to
1580 several cryptographic weaknesses. For binary compatibility reasons
1581 the MD2 API is still compiled in by default.
1584 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1588 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1589 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1591 [Guenter <lists@gknw.net>]
1593 *) Fix the server certificate chain building code to use X509_verify_cert(),
1594 it used to have an ad-hoc builder which was unable to cope with anything
1595 other than a simple chain.
1596 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1598 *) Don't check self signed certificate signatures in X509_verify_cert()
1599 by default (a flag can override this): it just wastes time without
1600 adding any security. As a useful side effect self signed root CAs
1601 with non-FIPS digests are now usable in FIPS mode.
1604 *) In dtls1_process_out_of_seq_message() the check if the current message
1605 is already buffered was missing. For every new message was memory
1606 allocated, allowing an attacker to perform an denial of service attack
1607 with sending out of seq handshake messages until there is no memory
1608 left. Additionally every future messege was buffered, even if the
1609 sequence number made no sense and would be part of another handshake.
1610 So only messages with sequence numbers less than 10 in advance will be
1611 buffered. (CVE-2009-1378)
1612 [Robin Seggelmann, discovered by Daniel Mentz]
1614 *) Records are buffered if they arrive with a future epoch to be
1615 processed after finishing the corresponding handshake. There is
1616 currently no limitation to this buffer allowing an attacker to perform
1617 a DOS attack with sending records with future epochs until there is no
1618 memory left. This patch adds the pqueue_size() function to detemine
1619 the size of a buffer and limits the record buffer to 100 entries.
1621 [Robin Seggelmann, discovered by Daniel Mentz]
1623 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1624 parent structure is freed. (CVE-2009-1379)
1627 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1628 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1631 [Ilya O. <vrghost@gmail.com>]
1633 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1635 *) Disable renegotiation completely - this fixes a severe security
1636 problem (CVE-2009-3555) at the cost of breaking all
1637 renegotiation. Renegotiation can be re-enabled by setting
1638 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1639 run-time. This is really not recommended unless you know what
1643 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1645 *) Don't set val to NULL when freeing up structures, it is freed up by
1646 underlying code. If sizeof(void *) > sizeof(long) this can result in
1647 zeroing past the valid field. (CVE-2009-0789)
1648 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1650 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1651 checked correctly. This would allow some invalid signed attributes to
1652 appear to verify correctly. (CVE-2009-0591)
1653 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1655 *) Reject UniversalString and BMPString types with invalid lengths. This
1656 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1657 a legal length. (CVE-2009-0590)
1660 *) Set S/MIME signing as the default purpose rather than setting it
1661 unconditionally. This allows applications to override it at the store
1665 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1666 to handle some structures.
1669 *) Improve efficiency of mem_gets: don't search whole buffer each time
1671 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1673 *) New -hex option for openssl rand.
1676 *) Print out UTF8String and NumericString when parsing ASN1.
1679 *) Support NumericString type for name components.
1682 *) Allow CC in the environment to override the automatically chosen
1683 compiler. Note that nothing is done to ensure flags work with the
1687 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1689 *) Properly check EVP_VerifyFinal() and similar return values
1691 [Ben Laurie, Bodo Moeller, Google Security Team]
1693 *) Enable TLS extensions by default.
1696 *) Allow the CHIL engine to be loaded, whether the application is
1697 multithreaded or not. (This does not release the developer from the
1698 obligation to set up the dynamic locking callbacks.)
1699 [Sander Temme <sander@temme.net>]
1701 *) Use correct exit code if there is an error in dgst command.
1702 [Steve Henson; problem pointed out by Roland Dirlewanger]
1704 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1705 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1708 *) Add experimental JPAKE support, including demo authentication in
1709 s_client and s_server.
1712 *) Set the comparison function in v3_addr_canonize().
1713 [Rob Austein <sra@hactrn.net>]
1715 *) Add support for XMPP STARTTLS in s_client.
1716 [Philip Paeps <philip@freebsd.org>]
1718 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1719 to ensure that even with this option, only ciphersuites in the
1720 server's preference list will be accepted. (Note that the option
1721 applies only when resuming a session, so the earlier behavior was
1722 just about the algorithm choice for symmetric cryptography.)
1725 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1727 *) Fix NULL pointer dereference if a DTLS server received
1728 ChangeCipherSpec as first record (CVE-2009-1386).
1731 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1732 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1735 *) The fix in 0.9.8c that supposedly got rid of unsafe
1736 double-checked locking was incomplete for RSA blinding,
1737 addressing just one layer of what turns out to have been
1738 doubly unsafe triple-checked locking.
1740 So now fix this for real by retiring the MONT_HELPER macro
1741 in crypto/rsa/rsa_eay.c.
1743 [Bodo Moeller; problem pointed out by Marius Schilder]
1745 *) Various precautionary measures:
1747 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1749 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1750 (NB: This would require knowledge of the secret session ticket key
1751 to exploit, in which case you'd be SOL either way.)
1753 - Change bn_nist.c so that it will properly handle input BIGNUMs
1754 outside the expected range.
1756 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1759 [Neel Mehta, Bodo Moeller]
1761 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1762 the load fails. Useful for distros.
1763 [Ben Laurie and the FreeBSD team]
1765 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1768 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1771 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1773 This work was sponsored by Logica.
1776 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1777 keystores. Support for SSL/TLS client authentication too.
1778 Not compiled unless enable-capieng specified to Configure.
1780 This work was sponsored by Logica.
1783 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1784 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1785 attribute creation routines such as certifcate requests and PKCS#12
1789 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1791 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1792 handshake which could lead to a cilent crash as found using the
1793 Codenomicon TLS test suite (CVE-2008-1672)
1794 [Steve Henson, Mark Cox]
1796 *) Fix double free in TLS server name extensions which could lead to
1797 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1800 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1802 Clear the error queue to ensure that error entries left from
1803 older function calls do not interfere with the correct operation.
1804 [Lutz Jaenicke, Erik de Castro Lopo]
1806 *) Remove root CA certificates of commercial CAs:
1808 The OpenSSL project does not recommend any specific CA and does not
1809 have any policy with respect to including or excluding any CA.
1810 Therefore it does not make any sense to ship an arbitrary selection
1811 of root CA certificates with the OpenSSL software.
1814 *) RSA OAEP patches to fix two separate invalid memory reads.
1815 The first one involves inputs when 'lzero' is greater than
1816 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1817 before the beginning of from). The second one involves inputs where
1818 the 'db' section contains nothing but zeroes (there is a one-byte
1819 invalid read after the end of 'db').
1820 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1822 *) Partial backport from 0.9.9-dev:
1824 Introduce bn_mul_mont (dedicated Montgomery multiplication
1825 procedure) as a candidate for BIGNUM assembler implementation.
1826 While 0.9.9-dev uses assembler for various architectures, only
1827 x86_64 is available by default here in the 0.9.8 branch, and
1828 32-bit x86 is available through a compile-time setting.
1830 To try the 32-bit x86 assembler implementation, use Configure
1831 option "enable-montasm" (which exists only for this backport).
1833 As "enable-montasm" for 32-bit x86 disclaims code stability
1834 anyway, in this constellation we activate additional code
1835 backported from 0.9.9-dev for further performance improvements,
1836 namely BN_from_montgomery_word. (To enable this otherwise,
1837 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1839 [Andy Polyakov (backport partially by Bodo Moeller)]
1841 *) Add TLS session ticket callback. This allows an application to set
1842 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1843 values. This is useful for key rollover for example where several key
1844 sets may exist with different names.
1847 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1848 This was broken until now in 0.9.8 releases, such that the only way
1849 a registered ENGINE could be used (assuming it initialises
1850 successfully on the host) was to explicitly set it as the default
1851 for the relevant algorithms. This is in contradiction with 0.9.7
1852 behaviour and the documentation. With this fix, when an ENGINE is
1853 registered into a given algorithm's table of implementations, the
1854 'uptodate' flag is reset so that auto-discovery will be used next
1855 time a new context for that algorithm attempts to select an
1857 [Ian Lister (tweaked by Geoff Thorpe)]
1859 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1860 implemention in the following ways:
1862 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1865 Lack of BER streaming support means one pass streaming processing is
1866 only supported if data is detached: setting the streaming flag is
1867 ignored for embedded content.
1869 CMS support is disabled by default and must be explicitly enabled
1870 with the enable-cms configuration option.
1873 *) Update the GMP engine glue to do direct copies between BIGNUM and
1874 mpz_t when openssl and GMP use the same limb size. Otherwise the
1875 existing "conversion via a text string export" trick is still used.
1876 [Paul Sheer <paulsheer@gmail.com>]
1878 *) Zlib compression BIO. This is a filter BIO which compressed and
1879 uncompresses any data passed through it.
1882 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1883 RFC3394 compatible AES key wrapping.
1886 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1887 sets string data without copying. X509_ALGOR_set0() and
1888 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1889 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1890 from an X509_ATTRIBUTE structure optionally checking it occurs only
1891 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1895 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1896 to get the expected BN_FLG_CONSTTIME behavior.
1897 [Bodo Moeller (Google)]
1901 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1902 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1903 - added some more tests to do_tests.pl
1904 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1905 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1906 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1907 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1908 - various changes to netware.pl to enable gcc-cross builds on Win32
1910 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1911 - various changes to fix missing prototype warnings
1912 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1913 - added AES, WHIRLPOOL and CPUID assembler code to build files
1914 - added missing AES assembler make rules to mk1mf.pl
1915 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1916 [Guenter Knauf <eflash@gmx.net>]
1918 *) Implement certificate status request TLS extension defined in RFC3546.
1919 A client can set the appropriate parameters and receive the encoded
1920 OCSP response via a callback. A server can query the supplied parameters
1921 and set the encoded OCSP response in the callback. Add simplified examples
1922 to s_client and s_server.
1925 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1927 *) Fix various bugs:
1928 + Binary incompatibility of ssl_ctx_st structure
1929 + DTLS interoperation with non-compliant servers
1930 + Don't call get_session_cb() without proposed session
1931 + Fix ia64 assembler code
1932 [Andy Polyakov, Steve Henson]
1934 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1936 *) DTLS Handshake overhaul. There were longstanding issues with
1937 OpenSSL DTLS implementation, which were making it impossible for
1938 RFC 4347 compliant client to communicate with OpenSSL server.
1939 Unfortunately just fixing these incompatibilities would "cut off"
1940 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1941 server keeps tolerating non RFC compliant syntax. The opposite is
1942 not true, 0.9.8f client can not communicate with earlier server.
1943 This update even addresses CVE-2007-4995.
1946 *) Changes to avoid need for function casts in OpenSSL: some compilers
1947 (gcc 4.2 and later) reject their use.
1948 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1951 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1952 RFC4507bis. The encrypted ticket format is an encrypted encoded
1953 SSL_SESSION structure, that way new session features are automatically
1956 If a client application caches session in an SSL_SESSION structure
1957 support is transparent because tickets are now stored in the encoded
1960 The SSL_CTX structure automatically generates keys for ticket
1961 protection in servers so again support should be possible
1962 with no application modification.
1964 If a client or server wishes to disable RFC4507 support then the option
1965 SSL_OP_NO_TICKET can be set.
1967 Add a TLS extension debugging callback to allow the contents of any client
1968 or server extensions to be examined.
1970 This work was sponsored by Google.
1973 *) Add initial support for TLS extensions, specifically for the server_name
1974 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1975 have new members for a host name. The SSL data structure has an
1976 additional member SSL_CTX *initial_ctx so that new sessions can be
1977 stored in that context to allow for session resumption, even after the
1978 SSL has been switched to a new SSL_CTX in reaction to a client's
1979 server_name extension.
1981 New functions (subject to change):
1983 SSL_get_servername()
1984 SSL_get_servername_type()
1987 New CTRL codes and macros (subject to change):
1989 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1990 - SSL_CTX_set_tlsext_servername_callback()
1991 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1992 - SSL_CTX_set_tlsext_servername_arg()
1993 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1995 openssl s_client has a new '-servername ...' option.
1997 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1998 '-key2 ...', '-servername_fatal' (subject to change). This allows
1999 testing the HostName extension for a specific single host name ('-cert'
2000 and '-key' remain fallbacks for handshakes without HostName
2001 negotiation). If the unrecogninzed_name alert has to be sent, this by
2002 default is a warning; it becomes fatal with the '-servername_fatal'
2005 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2007 *) Add AES and SSE2 assembly language support to VC++ build.
2010 *) Mitigate attack on final subtraction in Montgomery reduction.
2013 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2014 (which previously caused an internal error).
2017 *) Squeeze another 10% out of IGE mode when in != out.
2020 *) AES IGE mode speedup.
2021 [Dean Gaudet (Google)]
2023 *) Add the Korean symmetric 128-bit cipher SEED (see
2024 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2025 add SEED ciphersuites from RFC 4162:
2027 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2028 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2029 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2030 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2032 To minimize changes between patchlevels in the OpenSSL 0.9.8
2033 series, SEED remains excluded from compilation unless OpenSSL
2034 is configured with 'enable-seed'.
2035 [KISA, Bodo Moeller]
2037 *) Mitigate branch prediction attacks, which can be practical if a
2038 single processor is shared, allowing a spy process to extract
2039 information. For detailed background information, see
2040 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2041 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2042 and Necessary Software Countermeasures"). The core of the change
2043 are new versions BN_div_no_branch() and
2044 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2045 respectively, which are slower, but avoid the security-relevant
2046 conditional branches. These are automatically called by BN_div()
2047 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2048 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2049 remove a conditional branch.
2051 BN_FLG_CONSTTIME is the new name for the previous
2052 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2053 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2054 in the exponent causes BN_mod_exp_mont() to use the alternative
2055 implementation in BN_mod_exp_mont_consttime().) The old name
2056 remains as a deprecated alias.
2058 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2059 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2060 constant-time implementations for more than just exponentiation.
2061 Here too the old name is kept as a deprecated alias.
2063 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2064 the BN_BLINDING structure gets an independent copy of the
2065 modulus. This means that the previous "BIGNUM *m" argument to
2066 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2067 essentially becomes "const BIGNUM *m", although we can't actually
2068 change this in the header file before 0.9.9. It allows
2069 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2070 enable BN_FLG_CONSTTIME.
2072 [Matthew D Wood (Intel Corp)]
2074 *) In the SSL/TLS server implementation, be strict about session ID
2075 context matching (which matters if an application uses a single
2076 external cache for different purposes). Previously,
2077 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2078 set. This did ensure strict client verification, but meant that,
2079 with applications using a single external cache for quite
2080 different requirements, clients could circumvent ciphersuite
2081 restrictions for a given session ID context by starting a session
2082 in a different context.
2085 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2086 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2087 authentication-only ciphersuites.
2090 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2091 not complete and could lead to a possible single byte overflow
2092 (CVE-2007-5135) [Ben Laurie]
2094 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2096 *) Since AES128 and AES256 (and similarly Camellia128 and
2097 Camellia256) share a single mask bit in the logic of
2098 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2099 kludge to work properly if AES128 is available and AES256 isn't
2100 (or if Camellia128 is available and Camellia256 isn't).
2103 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2104 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2105 When a point or a seed is encoded in a BIT STRING, we need to
2106 prevent the removal of trailing zero bits to get the proper DER
2107 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2108 of a NamedBitList, for which trailing 0 bits need to be removed.)
2111 *) Have SSL/TLS server implementation tolerate "mismatched" record
2112 protocol version while receiving ClientHello even if the
2113 ClientHello is fragmented. (The server can't insist on the
2114 particular protocol version it has chosen before the ServerHello
2115 message has informed the client about his choice.)
2118 *) Add RFC 3779 support.
2119 [Rob Austein for ARIN, Ben Laurie]
2121 *) Load error codes if they are not already present instead of using a
2122 static variable. This allows them to be cleanly unloaded and reloaded.
2123 Improve header file function name parsing.
2126 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2127 or CAPABILITY handshake as required by RFCs.
2130 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2132 *) Introduce limits to prevent malicious keys being able to
2133 cause a denial of service. (CVE-2006-2940)
2134 [Steve Henson, Bodo Moeller]
2136 *) Fix ASN.1 parsing of certain invalid structures that can result
2137 in a denial of service. (CVE-2006-2937) [Steve Henson]
2139 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2140 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2142 *) Fix SSL client code which could crash if connecting to a
2143 malicious SSLv2 server. (CVE-2006-4343)
2144 [Tavis Ormandy and Will Drewry, Google Security Team]
2146 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2147 match only those. Before that, "AES256-SHA" would be interpreted
2148 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2149 the same strength classification in 0.9.7h) as we currently only
2150 have a single AES bit in the ciphersuite description bitmap.
2151 That change, however, also applied to ciphersuite strings such as
2152 "RC4-MD5" that intentionally matched multiple ciphersuites --
2153 namely, SSL 2.0 ciphersuites in addition to the more common ones
2154 from SSL 3.0/TLS 1.0.
2156 So we change the selection algorithm again: Naming an explicit
2157 ciphersuite selects this one ciphersuite, and any other similar
2158 ciphersuite (same bitmap) from *other* protocol versions.
2159 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2160 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2162 Since SSL 2.0 does not have any ciphersuites for which the
2163 128/256 bit distinction would be relevant, this works for now.
2164 The proper fix will be to use different bits for AES128 and
2165 AES256, which would have avoided the problems from the beginning;
2166 however, bits are scarce, so we can only do this in a new release
2167 (not just a patchlevel) when we can change the SSL_CIPHER
2168 definition to split the single 'unsigned long mask' bitmap into
2169 multiple values to extend the available space.
2173 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2175 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2176 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2178 *) Add AES IGE and biIGE modes.
2181 *) Change the Unix randomness entropy gathering to use poll() when
2182 possible instead of select(), since the latter has some
2183 undesirable limitations.
2184 [Darryl Miles via Richard Levitte and Bodo Moeller]
2186 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2187 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2188 cannot be implicitly activated as part of, e.g., the "AES" alias.
2189 However, please upgrade to OpenSSL 0.9.9[-dev] for
2190 non-experimental use of the ECC ciphersuites to get TLS extension
2191 support, which is required for curve and point format negotiation
2192 to avoid potential handshake problems.
2195 *) Disable rogue ciphersuites:
2197 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2198 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2199 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2201 The latter two were purportedly from
2202 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2205 Also deactivate the remaining ciphersuites from
2206 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2207 unofficial, and the ID has long expired.
2210 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2211 dual-core machines) and other potential thread-safety issues.
2214 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2215 versions), which is now available for royalty-free use
2216 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2217 Also, add Camellia TLS ciphersuites from RFC 4132.
2219 To minimize changes between patchlevels in the OpenSSL 0.9.8
2220 series, Camellia remains excluded from compilation unless OpenSSL
2221 is configured with 'enable-camellia'.
2224 *) Disable the padding bug check when compression is in use. The padding
2225 bug check assumes the first packet is of even length, this is not
2226 necessarily true if compresssion is enabled and can result in false
2227 positives causing handshake failure. The actual bug test is ancient
2228 code so it is hoped that implementations will either have fixed it by
2229 now or any which still have the bug do not support compression.
2232 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2234 *) When applying a cipher rule check to see if string match is an explicit
2235 cipher suite and only match that one cipher suite if it is.
2238 *) Link in manifests for VC++ if needed.
2239 [Austin Ziegler <halostatue@gmail.com>]
2241 *) Update support for ECC-based TLS ciphersuites according to
2242 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2243 TLS extensions, which are supported starting with the 0.9.9
2244 branch, not in the OpenSSL 0.9.8 branch).
2247 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2248 opaque EVP_CIPHER_CTX handling.
2251 *) Fixes and enhancements to zlib compression code. We now only use
2252 "zlib1.dll" and use the default __cdecl calling convention on Win32
2253 to conform with the standards mentioned here:
2254 http://www.zlib.net/DLL_FAQ.txt
2255 Static zlib linking now works on Windows and the new --with-zlib-include
2256 --with-zlib-lib options to Configure can be used to supply the location
2257 of the headers and library. Gracefully handle case where zlib library
2261 *) Several fixes and enhancements to the OID generation code. The old code
2262 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2263 handle numbers larger than ULONG_MAX, truncated printing and had a
2264 non standard OBJ_obj2txt() behaviour.
2267 *) Add support for building of engines under engine/ as shared libraries
2268 under VC++ build system.
2271 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2272 Hopefully, we will not see any false combination of paths any more.
2275 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2277 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2278 (part of SSL_OP_ALL). This option used to disable the
2279 countermeasure against man-in-the-middle protocol-version
2280 rollback in the SSL 2.0 server implementation, which is a bad
2281 idea. (CVE-2005-2969)
2283 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2284 for Information Security, National Institute of Advanced Industrial
2285 Science and Technology [AIST], Japan)]
2287 *) Add two function to clear and return the verify parameter flags.
2290 *) Keep cipherlists sorted in the source instead of sorting them at
2291 runtime, thus removing the need for a lock.
2294 *) Avoid some small subgroup attacks in Diffie-Hellman.
2295 [Nick Mathewson and Ben Laurie]
2297 *) Add functions for well-known primes.
2300 *) Extended Windows CE support.
2301 [Satoshi Nakamura and Andy Polyakov]
2303 *) Initialize SSL_METHOD structures at compile time instead of during
2304 runtime, thus removing the need for a lock.
2307 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2308 attempting to decrypt each encrypted key in turn. Add support to
2312 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2314 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2317 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2320 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2321 key into the same file any more.
2324 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2327 *) Add -utf8 command line and config file option to 'ca'.
2328 [Stefan <stf@udoma.org]
2330 *) Removed the macro des_crypt(), as it seems to conflict with some
2331 libraries. Use DES_crypt().
2334 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2335 involves renaming the source and generated shared-libs for
2336 both. The engines will accept the corrected or legacy ids
2337 ('ncipher' and '4758_cca' respectively) when binding. NB,
2338 this only applies when building 'shared'.
2339 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2341 *) Add attribute functions to EVP_PKEY structure. Modify
2342 PKCS12_create() to recognize a CSP name attribute and
2343 use it. Make -CSP option work again in pkcs12 utility.
2346 *) Add new functionality to the bn blinding code:
2347 - automatic re-creation of the BN_BLINDING parameters after
2348 a fixed number of uses (currently 32)
2349 - add new function for parameter creation
2350 - introduce flags to control the update behaviour of the
2351 BN_BLINDING parameters
2352 - hide BN_BLINDING structure
2353 Add a second BN_BLINDING slot to the RSA structure to improve
2354 performance when a single RSA object is shared among several
2358 *) Add support for DTLS.
2359 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2361 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2362 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2365 *) Remove buggy and incompletet DH cert support from
2366 ssl/ssl_rsa.c and ssl/s3_both.c
2369 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2370 the apps/openssl applications.
2373 *) Compile clean with "-Wall -Wmissing-prototypes
2374 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2375 DEBUG_SAFESTACK must also be set.
2378 *) Change ./Configure so that certain algorithms can be disabled by default.
2379 The new counterpiece to "no-xxx" is "enable-xxx".
2381 The patented RC5 and MDC2 algorithms will now be disabled unless
2382 "enable-rc5" and "enable-mdc2", respectively, are specified.
2384 (IDEA remains enabled despite being patented. This is because IDEA
2385 is frequently required for interoperability, and there is no license
2386 fee for non-commercial use. As before, "no-idea" can be used to
2387 avoid this algorithm.)
2391 *) Add processing of proxy certificates (see RFC 3820). This work was
2392 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2393 EGEE (Enabling Grids for E-science in Europe).
2396 *) RC4 performance overhaul on modern architectures/implementations, such
2397 as Intel P4, IA-64 and AMD64.
2400 *) New utility extract-section.pl. This can be used specify an alternative
2401 section number in a pod file instead of having to treat each file as
2402 a separate case in Makefile. This can be done by adding two lines to the
2405 =for comment openssl_section:XXX
2407 The blank line is mandatory.
2411 *) New arguments -certform, -keyform and -pass for s_client and s_server
2412 to allow alternative format key and certificate files and passphrase
2416 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2417 update associated structures and add various utility functions.
2419 Add new policy related verify parameters, include policy checking in
2420 standard verify code. Enhance 'smime' application with extra parameters
2421 to support policy checking and print out.
2424 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2425 Nehemiah processors. These extensions support AES encryption in hardware
2426 as well as RNG (though RNG support is currently disabled).
2427 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2429 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2432 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2433 [Andy Polyakov and a number of other people]
2435 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2436 implementation contributed by IBM.
2437 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2439 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2440 exponent rather than 'unsigned long'. There is a corresponding change to
2441 the new 'rsa_keygen' element of the RSA_METHOD structure.
2442 [Jelte Jansen, Geoff Thorpe]
2444 *) Functionality for creating the initial serial number file is now
2445 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2447 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2448 number file to 1, which is bound to cause problems. To avoid
2449 the problems while respecting compatibility between different 0.9.7
2450 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2451 CA.pl for serial number initialization. With the new release 0.9.8,
2452 we can fix the problem directly in the 'ca' utility.)
2455 *) Reduced header interdepencies by declaring more opaque objects in
2456 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2457 give fewer recursive includes, which could break lazy source code - so
2458 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2459 developers should define this symbol when building and using openssl to
2460 ensure they track the recommended behaviour, interfaces, [etc], but
2461 backwards-compatible behaviour prevails when this isn't defined.
2464 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2467 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2468 This will generate a random key of the appropriate length based on the
2469 cipher context. The EVP_CIPHER can provide its own random key generation
2470 routine to support keys of a specific form. This is used in the des and
2471 3des routines to generate a key of the correct parity. Update S/MIME
2472 code to use new functions and hence generate correct parity DES keys.
2473 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2474 valid (weak or incorrect parity).
2477 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2478 as looking them up. This is useful when the verified structure may contain
2479 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2480 present unless the new PKCS7_NO_CRL flag is asserted.
2483 *) Extend ASN1 oid configuration module. It now additionally accepts the
2486 shortName = some long name, 1.2.3.4
2489 *) Reimplemented the BN_CTX implementation. There is now no more static
2490 limitation on the number of variables it can handle nor the depth of the
2491 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2492 information can now expand as required, and rather than having a single
2493 static array of bignums, BN_CTX now uses a linked-list of such arrays
2494 allowing it to expand on demand whilst maintaining the usefulness of
2495 BN_CTX's "bundling".
2498 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2499 to allow all RSA operations to function using a single BN_CTX.
2502 *) Preliminary support for certificate policy evaluation and checking. This
2503 is initially intended to pass the tests outlined in "Conformance Testing
2504 of Relying Party Client Certificate Path Processing Logic" v1.07.
2507 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2508 remained unused and not that useful. A variety of other little bignum
2509 tweaks and fixes have also been made continuing on from the audit (see
2513 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2514 associated ASN1, EVP and SSL functions and old ASN1 macros.
2517 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2518 and this should never fail. So the return value from the use of
2519 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2520 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2523 *) BN_CTX_get() should return zero-valued bignums, providing the same
2524 initialised value as BN_new().
2525 [Geoff Thorpe, suggested by Ulf Möller]
2527 *) Support for inhibitAnyPolicy certificate extension.
2530 *) An audit of the BIGNUM code is underway, for which debugging code is
2531 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2532 is considered valid when processing BIGNUMs, and causes execution to
2533 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2534 further steps are taken to deliberately pollute unused data in BIGNUM
2535 structures to try and expose faulty code further on. For now, openssl will
2536 (in its default mode of operation) continue to tolerate the inconsistent
2537 forms that it has tolerated in the past, but authors and packagers should
2538 consider trying openssl and their own applications when compiled with
2539 these debugging symbols defined. It will help highlight potential bugs in
2540 their own code, and will improve the test coverage for OpenSSL itself. At
2541 some point, these tighter rules will become openssl's default to improve
2542 maintainability, though the assert()s and other overheads will remain only
2543 in debugging configurations. See bn.h for more details.
2544 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2546 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2547 that can only be obtained through BN_CTX_new() (which implicitly
2548 initialises it). The presence of this function only made it possible
2549 to overwrite an existing structure (and cause memory leaks).
2552 *) Because of the callback-based approach for implementing LHASH as a
2553 template type, lh_insert() adds opaque objects to hash-tables and
2554 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2555 to clean up those corresponding objects before destroying the hash table
2556 (and losing the object pointers). So some over-zealous constifications in
2557 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2558 objects as "const" and the lh_doall[_arg] callback wrappers are not
2559 prototyped to have "const" restrictions on the object pointers they are
2560 given (and so aren't required to cast them away any more).
2563 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2564 (speed) prefers to use its own implementation. The two implementations
2565 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2566 its object type properly exposed (MS_TM) instead of casting to/from "char
2567 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2568 aren't necessarily the greatest nomenclatures - but this is what was used
2569 internally to the implementation so I've used that for now.
2572 *) Ensure that deprecated functions do not get compiled when
2573 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2574 the self-tests were still using deprecated key-generation functions so
2575 these have been updated also.
2578 *) Reorganise PKCS#7 code to separate the digest location functionality
2579 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2580 New function PKCS7_set_digest() to set the digest type for PKCS#7
2581 digestedData type. Add additional code to correctly generate the
2582 digestedData type and add support for this type in PKCS7 initialization
2586 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2587 structure of type "other".
2590 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2591 sure the loop does correctly stop and breaking ("division by zero")
2592 modulus operations are not performed. The (pre-generated) prime
2593 table crypto/bn/bn_prime.h was already correct, but it could not be
2594 re-generated on some platforms because of the "division by zero"
2595 situation in the script.
2596 [Ralf S. Engelschall]
2598 *) Update support for ECC-based TLS ciphersuites according to
2599 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2600 SHA-1 now is only used for "small" curves (where the
2601 representation of a field element takes up to 24 bytes); for
2602 larger curves, the field element resulting from ECDH is directly
2603 used as premaster secret.
2604 [Douglas Stebila (Sun Microsystems Laboratories)]
2606 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2607 curve secp160r1 to the tests.
2608 [Douglas Stebila (Sun Microsystems Laboratories)]
2610 *) Add the possibility to load symbols globally with DSO.
2611 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2613 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2614 control of the error stack.
2617 *) Add support for STORE in ENGINE.
2620 *) Add the STORE type. The intention is to provide a common interface
2621 to certificate and key stores, be they simple file-based stores, or
2622 HSM-type store, or LDAP stores, or...
2623 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2626 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2627 pass a list of arguments to any function as well as provide a way
2628 for a function to pass data back to the caller.
2631 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2632 works like BUF_strdup() but can be used to duplicate a portion of
2633 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2637 *) Add the function sk_find_ex() which works like sk_find(), but will
2638 return an index to an element even if an exact match couldn't be
2639 found. The index is guaranteed to point at the element where the
2640 searched-for key would be inserted to preserve sorting order.
2643 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2644 takes an extra flags argument for optional functionality. Currently,
2645 the following flags are defined:
2647 OBJ_BSEARCH_VALUE_ON_NOMATCH
2648 This one gets OBJ_bsearch_ex() to return a pointer to the first
2649 element where the comparing function returns a negative or zero
2652 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2653 This one gets OBJ_bsearch_ex() to return a pointer to the first
2654 element where the comparing function returns zero. This is useful
2655 if there are more than one element where the comparing function
2659 *) Make it possible to create self-signed certificates with 'openssl ca'
2660 in such a way that the self-signed certificate becomes part of the
2661 CA database and uses the same mechanisms for serial number generation
2662 as all other certificate signing. The new flag '-selfsign' enables
2663 this functionality. Adapt CA.sh and CA.pl.in.
2666 *) Add functionality to check the public key of a certificate request
2667 against a given private. This is useful to check that a certificate
2668 request can be signed by that key (self-signing).
2671 *) Make it possible to have multiple active certificates with the same
2672 subject in the CA index file. This is done only if the keyword
2673 'unique_subject' is set to 'no' in the main CA section (default
2674 if 'CA_default') of the configuration file. The value is saved
2675 with the database itself in a separate index attribute file,
2676 named like the index file with '.attr' appended to the name.
2679 *) Generate muti valued AVAs using '+' notation in config files for
2683 *) Support for nameConstraints certificate extension.
2686 *) Support for policyConstraints certificate extension.
2689 *) Support for policyMappings certificate extension.
2692 *) Make sure the default DSA_METHOD implementation only uses its
2693 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2694 and change its own handlers to be NULL so as to remove unnecessary
2695 indirection. This lets alternative implementations fallback to the
2696 default implementation more easily.
2699 *) Support for directoryName in GeneralName related extensions
2703 *) Make it possible to link applications using Makefile.shared.
2704 Make that possible even when linking against static libraries!
2707 *) Support for single pass processing for S/MIME signing. This now
2708 means that S/MIME signing can be done from a pipe, in addition
2709 cleartext signing (multipart/signed type) is effectively streaming
2710 and the signed data does not need to be all held in memory.
2712 This is done with a new flag PKCS7_STREAM. When this flag is set
2713 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2714 is done after the data is output (and digests calculated) in
2715 SMIME_write_PKCS7().
2718 *) Add full support for -rpath/-R, both in shared libraries and
2719 applications, at least on the platforms where it's known how
2723 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2724 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2725 will now compute a table of multiples of the generator that
2726 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2727 faster (notably in the case of a single point multiplication,
2728 scalar * generator).
2729 [Nils Larsch, Bodo Moeller]
2731 *) IPv6 support for certificate extensions. The various extensions
2732 which use the IP:a.b.c.d can now take IPv6 addresses using the
2733 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2737 *) Added an ENGINE that implements RSA by performing private key
2738 exponentiations with the GMP library. The conversions to and from
2739 GMP's mpz_t format aren't optimised nor are any montgomery forms
2740 cached, and on x86 it appears OpenSSL's own performance has caught up.
2741 However there are likely to be other architectures where GMP could
2742 provide a boost. This ENGINE is not built in by default, but it can be
2743 specified at Configure time and should be accompanied by the necessary
2744 linker additions, eg;
2745 ./config -DOPENSSL_USE_GMP -lgmp
2748 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2749 testing availability of engines with "-t" - the old behaviour is
2750 produced by increasing the feature's verbosity with "-tt".
2753 *) ECDSA routines: under certain error conditions uninitialized BN objects
2754 could be freed. Solution: make sure initialization is performed early
2755 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2759 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2760 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2761 software implementations. For DSA and DH, parameter generation can
2762 also be overriden by providing the appropriate method callbacks.
2765 *) Change the "progress" mechanism used in key-generation and
2766 primality testing to functions that take a new BN_GENCB pointer in
2767 place of callback/argument pairs. The new API functions have "_ex"
2768 postfixes and the older functions are reimplemented as wrappers for
2769 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2770 declarations of the old functions to help (graceful) attempts to
2771 migrate to the new functions. Also, the new key-generation API
2772 functions operate on a caller-supplied key-structure and return
2773 success/failure rather than returning a key or NULL - this is to
2774 help make "keygen" another member function of RSA_METHOD etc.
2776 Example for using the new callback interface:
2778 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2782 BN_GENCB_set(&my_cb, my_callback, my_arg);
2784 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2785 /* For the meaning of a, b in calls to my_callback(), see the
2786 * documentation of the function that calls the callback.
2787 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2788 * my_callback should return 1 if it wants BN_is_prime_ex()
2789 * to continue, or 0 to stop.
2794 *) Change the ZLIB compression method to be stateful, and make it
2795 available to TLS with the number defined in
2796 draft-ietf-tls-compression-04.txt.
2799 *) Add the ASN.1 structures and functions for CertificatePair, which
2800 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2802 CertificatePair ::= SEQUENCE {
2803 forward [0] Certificate OPTIONAL,
2804 reverse [1] Certificate OPTIONAL,
2805 -- at least one of the pair shall be present -- }
2807 Also implement the PEM functions to read and write certificate
2808 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2810 This needed to be defined, mostly for the sake of the LDAP
2811 attribute crossCertificatePair, but may prove useful elsewhere as
2815 *) Make it possible to inhibit symlinking of shared libraries in
2816 Makefile.shared, for Cygwin's sake.
2819 *) Extend the BIGNUM API by creating a function
2820 void BN_set_negative(BIGNUM *a, int neg);
2821 and a macro that behave like
2822 int BN_is_negative(const BIGNUM *a);
2824 to avoid the need to access 'a->neg' directly in applications.
2827 *) Implement fast modular reduction for pseudo-Mersenne primes
2828 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2829 EC_GROUP_new_curve_GFp() will now automatically use this
2831 [Nils Larsch <nla@trustcenter.de>]
2833 *) Add new lock type (CRYPTO_LOCK_BN).
2836 *) Change the ENGINE framework to automatically load engines
2837 dynamically from specific directories unless they could be
2838 found to already be built in or loaded. Move all the
2839 current engines except for the cryptodev one to a new
2841 The engines in engines/ are built as shared libraries if
2842 the "shared" options was given to ./Configure or ./config.
2843 Otherwise, they are inserted in libcrypto.a.
2844 /usr/local/ssl/engines is the default directory for dynamic
2845 engines, but that can be overriden at configure time through
2846 the usual use of --prefix and/or --openssldir, and at run
2847 time with the environment variable OPENSSL_ENGINES.
2848 [Geoff Thorpe and Richard Levitte]
2850 *) Add Makefile.shared, a helper makefile to build shared
2851 libraries. Addapt Makefile.org.
2854 *) Add version info to Win32 DLLs.
2855 [Peter 'Luna' Runestig" <peter@runestig.com>]
2857 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2858 can be added using this API to created arbitrary PKCS#12
2859 files while avoiding the low level API.
2861 New options to PKCS12_create(), key or cert can be NULL and
2862 will then be omitted from the output file. The encryption
2863 algorithm NIDs can be set to -1 for no encryption, the mac
2864 iteration count can be set to 0 to omit the mac.
2866 Enhance pkcs12 utility by making the -nokeys and -nocerts
2867 options work when creating a PKCS#12 file. New option -nomac
2868 to omit the mac, NONE can be set for an encryption algorithm.
2869 New code is modified to use the enhanced PKCS12_create()
2870 instead of the low level API.
2873 *) Extend ASN1 encoder to support indefinite length constructed
2874 encoding. This can output sequences tags and octet strings in
2875 this form. Modify pk7_asn1.c to support indefinite length
2876 encoding. This is experimental and needs additional code to
2877 be useful, such as an ASN1 bio and some enhanced streaming
2880 Extend template encode functionality so that tagging is passed
2881 down to the template encoder.
2884 *) Let 'openssl req' fail if an argument to '-newkey' is not
2885 recognized instead of using RSA as a default.
2888 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2889 As these are not official, they are not included in "ALL";
2890 the "ECCdraft" ciphersuite group alias can be used to select them.
2891 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2893 *) Add ECDH engine support.
2894 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2896 *) Add ECDH in new directory crypto/ecdh/.
2897 [Douglas Stebila (Sun Microsystems Laboratories)]
2899 *) Let BN_rand_range() abort with an error after 100 iterations
2900 without success (which indicates a broken PRNG).
2903 *) Change BN_mod_sqrt() so that it verifies that the input value
2904 is really the square of the return value. (Previously,
2905 BN_mod_sqrt would show GIGO behaviour.)
2908 *) Add named elliptic curves over binary fields from X9.62, SECG,
2909 and WAP/WTLS; add OIDs that were still missing.
2911 [Sheueling Chang Shantz and Douglas Stebila
2912 (Sun Microsystems Laboratories)]
2914 *) Extend the EC library for elliptic curves over binary fields
2915 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2918 EC_GF2m_simple_method
2922 EC_GROUP_new_curve_GF2m
2923 EC_GROUP_set_curve_GF2m
2924 EC_GROUP_get_curve_GF2m
2925 EC_POINT_set_affine_coordinates_GF2m
2926 EC_POINT_get_affine_coordinates_GF2m
2927 EC_POINT_set_compressed_coordinates_GF2m
2929 Point compression for binary fields is disabled by default for
2930 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2933 As binary polynomials are represented as BIGNUMs, various members
2934 of the EC_GROUP and EC_POINT data structures can be shared
2935 between the implementations for prime fields and binary fields;
2936 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2937 are essentially identical to their ..._GFp counterparts.
2938 (For simplicity, the '..._GFp' prefix has been dropped from
2939 various internal method names.)
2941 An internal 'field_div' method (similar to 'field_mul' and
2942 'field_sqr') has been added; this is used only for binary fields.
2944 [Sheueling Chang Shantz and Douglas Stebila
2945 (Sun Microsystems Laboratories)]
2947 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2948 through methods ('mul', 'precompute_mult').
2950 The generic implementations (now internally called 'ec_wNAF_mul'
2951 and 'ec_wNAF_precomputed_mult') remain the default if these
2952 methods are undefined.
2954 [Sheueling Chang Shantz and Douglas Stebila
2955 (Sun Microsystems Laboratories)]
2957 *) New function EC_GROUP_get_degree, which is defined through
2958 EC_METHOD. For curves over prime fields, this returns the bit
2959 length of the modulus.
2961 [Sheueling Chang Shantz and Douglas Stebila
2962 (Sun Microsystems Laboratories)]
2964 *) New functions EC_GROUP_dup, EC_POINT_dup.
2965 (These simply call ..._new and ..._copy).
2967 [Sheueling Chang Shantz and Douglas Stebila
2968 (Sun Microsystems Laboratories)]
2970 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2971 Polynomials are represented as BIGNUMs (where the sign bit is not
2972 used) in the following functions [macros]:
2975 BN_GF2m_sub [= BN_GF2m_add]
2976 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2977 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2978 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2980 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2981 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2982 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2983 BN_GF2m_cmp [= BN_ucmp]
2985 (Note that only the 'mod' functions are actually for fields GF(2^m).
2986 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2988 For some functions, an the irreducible polynomial defining a
2989 field can be given as an 'unsigned int[]' with strictly
2990 decreasing elements giving the indices of those bits that are set;
2991 i.e., p[] represents the polynomial
2992 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2994 p[0] > p[1] > ... > p[k] = 0.
2995 This applies to the following functions:
3000 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3001 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3003 BN_GF2m_mod_sqrt_arr
3004 BN_GF2m_mod_solve_quad_arr
3008 Conversion can be performed by the following functions:
3013 bntest.c has additional tests for binary polynomial arithmetic.
3015 Two implementations for BN_GF2m_mod_div() are available.
3016 The default algorithm simply uses BN_GF2m_mod_inv() and
3017 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3018 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3019 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3021 [Sheueling Chang Shantz and Douglas Stebila
3022 (Sun Microsystems Laboratories)]
3024 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3025 functionality is disabled at compile-time.
3026 [Douglas Stebila <douglas.stebila@sun.com>]
3028 *) Change default behaviour of 'openssl asn1parse' so that more
3029 information is visible when viewing, e.g., a certificate:
3031 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3032 mode the content of non-printable OCTET STRINGs is output in a
3033 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3034 avoid the appearance of a printable string.
3035 [Nils Larsch <nla@trustcenter.de>]
3037 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3039 EC_GROUP_set_asn1_flag()
3040 EC_GROUP_get_asn1_flag()
3041 EC_GROUP_set_point_conversion_form()
3042 EC_GROUP_get_point_conversion_form()
3043 These control ASN1 encoding details:
3044 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3045 has been set to OPENSSL_EC_NAMED_CURVE.
3046 - Points are encoded in uncompressed form by default; options for
3047 asn1_for are as for point2oct, namely
3048 POINT_CONVERSION_COMPRESSED
3049 POINT_CONVERSION_UNCOMPRESSED
3050 POINT_CONVERSION_HYBRID
3052 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3055 EC_GROUP_get0_seed()
3056 EC_GROUP_get_seed_len()
3057 This is used only for ASN1 purposes (so far).
3058 [Nils Larsch <nla@trustcenter.de>]
3060 *) Add 'field_type' member to EC_METHOD, which holds the NID
3061 of the appropriate field type OID. The new function
3062 EC_METHOD_get_field_type() returns this value.
3063 [Nils Larsch <nla@trustcenter.de>]
3068 EC_POINT_point2hex()
3069 EC_POINT_hex2point()
3070 providing useful interfaces to EC_POINT_point2oct() and
3071 EC_POINT_oct2point().
3072 [Nils Larsch <nla@trustcenter.de>]
3074 *) Change internals of the EC library so that the functions
3075 EC_GROUP_set_generator()
3076 EC_GROUP_get_generator()
3077 EC_GROUP_get_order()
3078 EC_GROUP_get_cofactor()
3079 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3080 to methods, which would lead to unnecessary code duplication when
3081 adding different types of curves.
3082 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3084 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3085 arithmetic, and such that modified wNAFs are generated
3086 (which avoid length expansion in many cases).
3089 *) Add a function EC_GROUP_check_discriminant() (defined via
3090 EC_METHOD) that verifies that the curve discriminant is non-zero.
3092 Add a function EC_GROUP_check() that makes some sanity tests
3093 on a EC_GROUP, its generator and order. This includes
3094 EC_GROUP_check_discriminant().
3095 [Nils Larsch <nla@trustcenter.de>]
3097 *) Add ECDSA in new directory crypto/ecdsa/.
3099 Add applications 'openssl ecparam' and 'openssl ecdsa'
3100 (these are based on 'openssl dsaparam' and 'openssl dsa').
3102 ECDSA support is also included in various other files across the
3103 library. Most notably,
3104 - 'openssl req' now has a '-newkey ecdsa:file' option;
3105 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3106 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3107 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3108 them suitable for ECDSA where domain parameters must be
3109 extracted before the specific public key;
3110 - ECDSA engine support has been added.
3111 [Nils Larsch <nla@trustcenter.de>]
3113 *) Include some named elliptic curves, and add OIDs from X9.62,
3114 SECG, and WAP/WTLS. Each curve can be obtained from the new
3116 EC_GROUP_new_by_curve_name(),
3117 and the list of available named curves can be obtained with
3118 EC_get_builtin_curves().
3119 Also add a 'curve_name' member to EC_GROUP objects, which can be
3121 EC_GROUP_set_curve_name()
3122 EC_GROUP_get_curve_name()
3123 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3125 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3126 was actually never needed) and in BN_mul(). The removal in BN_mul()
3127 required a small change in bn_mul_part_recursive() and the addition
3128 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3129 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3130 bn_sub_words() and bn_add_words() except they take arrays with
3134 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3136 *) Cleanse PEM buffers before freeing them since they may contain
3138 [Benjamin Bennett <ben@psc.edu>]
3140 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3141 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3142 authentication-only ciphersuites.
3145 *) Since AES128 and AES256 share a single mask bit in the logic of
3146 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3147 kludge to work properly if AES128 is available and AES256 isn't.
3150 *) Expand security boundary to match 1.1.1 module.
3153 *) Remove redundant features: hash file source, editing of test vectors
3154 modify fipsld to use external fips_premain.c signature.
3157 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3158 run algorithm test programs.
3161 *) Make algorithm test programs more tolerant of whitespace.
3164 *) Have SSL/TLS server implementation tolerate "mismatched" record
3165 protocol version while receiving ClientHello even if the
3166 ClientHello is fragmented. (The server can't insist on the
3167 particular protocol version it has chosen before the ServerHello
3168 message has informed the client about his choice.)
3171 *) Load error codes if they are not already present instead of using a
3172 static variable. This allows them to be cleanly unloaded and reloaded.
3175 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3177 *) Introduce limits to prevent malicious keys being able to
3178 cause a denial of service. (CVE-2006-2940)
3179 [Steve Henson, Bodo Moeller]
3181 *) Fix ASN.1 parsing of certain invalid structures that can result
3182 in a denial of service. (CVE-2006-2937) [Steve Henson]
3184 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3185 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3187 *) Fix SSL client code which could crash if connecting to a
3188 malicious SSLv2 server. (CVE-2006-4343)
3189 [Tavis Ormandy and Will Drewry, Google Security Team]
3191 *) Change ciphersuite string processing so that an explicit
3192 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3193 will no longer include "AES128-SHA"), and any other similar
3194 ciphersuite (same bitmap) from *other* protocol versions (so that
3195 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3196 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3197 changes from 0.9.8b and 0.9.8d.
3200 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3202 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3203 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3205 *) Change the Unix randomness entropy gathering to use poll() when
3206 possible instead of select(), since the latter has some
3207 undesirable limitations.
3208 [Darryl Miles via Richard Levitte and Bodo Moeller]
3210 *) Disable rogue ciphersuites:
3212 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3213 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3214 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3216 The latter two were purportedly from
3217 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3220 Also deactive the remaining ciphersuites from
3221 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3222 unofficial, and the ID has long expired.
3225 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3226 dual-core machines) and other potential thread-safety issues.
3229 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3231 *) Adapt fipsld and the build system to link against the validated FIPS
3232 module in FIPS mode.
3235 *) Fixes for VC++ 2005 build under Windows.
3238 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3239 from a Windows bash shell such as MSYS. It is autodetected from the
3240 "config" script when run from a VC++ environment. Modify standard VC++
3241 build to use fipscanister.o from the GNU make build.
3244 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3246 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3247 The value now differs depending on if you build for FIPS or not.
3248 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3249 safely run with a non-FIPSed libcrypto, as it may crash because of
3250 the difference induced by this change.
3253 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3255 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3256 (part of SSL_OP_ALL). This option used to disable the
3257 countermeasure against man-in-the-middle protocol-version
3258 rollback in the SSL 2.0 server implementation, which is a bad
3259 idea. (CVE-2005-2969)
3261 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3262 for Information Security, National Institute of Advanced Industrial
3263 Science and Technology [AIST], Japan)]
3265 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3266 mainly for FIPS compliance and not fully integrated at this stage.
3269 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3270 the exponentiation using a fixed-length exponent. (Otherwise,
3271 the information leaked through timing could expose the secret key
3272 after many signatures; cf. Bleichenbacher's attack on DSA with
3276 *) Make a new fixed-window mod_exp implementation the default for
3277 RSA, DSA, and DH private-key operations so that the sequence of
3278 squares and multiplies and the memory access pattern are
3279 independent of the particular secret key. This will mitigate
3280 cache-timing and potential related attacks.
3282 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3283 and this is automatically used by BN_mod_exp_mont() if the new flag
3284 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3285 will use this BN flag for private exponents unless the flag
3286 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3287 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3289 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3291 *) Change the client implementation for SSLv23_method() and
3292 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3293 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3294 (Previously, the SSL 2.0 backwards compatible Client Hello
3295 message format would be used even with SSL_OP_NO_SSLv2.)
3298 *) Add support for smime-type MIME parameter in S/MIME messages which some
3302 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3303 a threadsafe manner. Modify rsa code to use new function and add calls
3304 to dsa and dh code (which had race conditions before).
3307 *) Include the fixed error library code in the C error file definitions
3308 instead of fixing them up at runtime. This keeps the error code
3309 structures constant.
3312 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3314 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3317 *) Fixes for newer kerberos headers. NB: the casts are needed because
3318 the 'length' field is signed on one version and unsigned on another
3319 with no (?) obvious way to tell the difference, without these VC++
3320 complains. Also the "definition" of FAR (blank) is no longer included
3321 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3322 some needed definitions.
3325 *) Undo Cygwin change.
3328 *) Added support for proxy certificates according to RFC 3820.
3329 Because they may be a security thread to unaware applications,
3330 they must be explicitely allowed in run-time. See
3331 docs/HOWTO/proxy_certificates.txt for further information.
3334 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3336 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3337 server and client random values. Previously
3338 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3339 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3341 This change has negligible security impact because:
3343 1. Server and client random values still have 24 bytes of pseudo random
3346 2. Server and client random values are sent in the clear in the initial
3349 3. The master secret is derived using the premaster secret (48 bytes in
3350 size for static RSA ciphersuites) as well as client server and random
3353 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3356 [Stephen Henson, reported by UK NISCC]
3358 *) Use Windows randomness collection on Cygwin.
3361 *) Fix hang in EGD/PRNGD query when communication socket is closed
3362 prematurely by EGD/PRNGD.
3363 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3365 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3368 *) Back-port of selected performance improvements from development
3369 branch, as well as improved support for PowerPC platforms.
3372 *) Add lots of checks for memory allocation failure, error codes to indicate
3373 failure and freeing up memory if a failure occurs.
3374 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3376 *) Add new -passin argument to dgst.
3379 *) Perform some character comparisons of different types in X509_NAME_cmp:
3380 this is needed for some certificates that reencode DNs into UTF8Strings
3381 (in violation of RFC3280) and can't or wont issue name rollover
3385 *) Make an explicit check during certificate validation to see that
3386 the CA setting in each certificate on the chain is correct. As a
3387 side effect always do the following basic checks on extensions,
3388 not just when there's an associated purpose to the check:
3390 - if there is an unhandled critical extension (unless the user
3391 has chosen to ignore this fault)
3392 - if the path length has been exceeded (if one is set at all)
3393 - that certain extensions fit the associated purpose (if one has
3397 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3399 *) Avoid a race condition when CRLs are checked in a multi threaded
3400 environment. This would happen due to the reordering of the revoked
3401 entries during signature checking and serial number lookup. Now the
3402 encoding is cached and the serial number sort performed under a lock.
3403 Add new STACK function sk_is_sorted().
3406 *) Add Delta CRL to the extension code.
3409 *) Various fixes to s3_pkt.c so alerts are sent properly.
3410 [David Holmes <d.holmes@f5.com>]
3412 *) Reduce the chances of duplicate issuer name and serial numbers (in
3413 violation of RFC3280) using the OpenSSL certificate creation utilities.
3414 This is done by creating a random 64 bit value for the initial serial
3415 number when a serial number file is created or when a self signed
3416 certificate is created using 'openssl req -x509'. The initial serial
3417 number file is created using 'openssl x509 -next_serial' in CA.pl
3418 rather than being initialized to 1.
3421 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3423 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3424 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3425 [Joe Orton, Steve Henson]
3427 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3429 [Joe Orton, Steve Henson]
3431 *) Make it possible to have multiple active certificates with the same
3432 subject in the CA index file. This is done only if the keyword
3433 'unique_subject' is set to 'no' in the main CA section (default
3434 if 'CA_default') of the configuration file. The value is saved
3435 with the database itself in a separate index attribute file,
3436 named like the index file with '.attr' appended to the name.
3439 *) X509 verify fixes. Disable broken certificate workarounds when
3440 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3441 keyUsage extension present. Don't accept CRLs with unhandled critical
3442 extensions: since verify currently doesn't process CRL extensions this
3443 rejects a CRL with *any* critical extensions. Add new verify error codes
3447 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3448 A clarification of RFC2560 will require the use of OCTET STRINGs and
3449 some implementations cannot handle the current raw format. Since OpenSSL
3450 copies and compares OCSP nonces as opaque blobs without any attempt at
3451 parsing them this should not create any compatibility issues.
3454 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3455 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3456 this HMAC (and other) operations are several times slower than OpenSSL
3460 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3461 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3463 *) Use the correct content when signing type "other".
3466 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3468 *) Fix various bugs revealed by running the NISCC test suite:
3470 Stop out of bounds reads in the ASN1 code when presented with
3471 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3473 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3475 If verify callback ignores invalid public key errors don't try to check
3476 certificate signature with the NULL public key.
3480 *) New -ignore_err option in ocsp application to stop the server
3481 exiting on the first error in a request.
3484 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3485 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3489 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3490 extra data after the compression methods not only for TLS 1.0
3491 but also for SSL 3.0 (as required by the specification).
3492 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3494 *) Change X509_certificate_type() to mark the key as exported/exportable
3495 when it's 512 *bits* long, not 512 bytes.
3498 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3499 blocks during encryption.
3502 *) Various fixes to base64 BIO and non blocking I/O. On write
3503 flushes were not handled properly if the BIO retried. On read
3504 data was not being buffered properly and had various logic bugs.
3505 This also affects blocking I/O when the data being decoded is a
3509 *) Various S/MIME bugfixes and compatibility changes:
3510 output correct application/pkcs7 MIME type if
3511 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3512 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3513 of files as .eml work). Correctly handle very long lines in MIME
3517 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3519 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3520 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3521 a protocol version number mismatch like a decryption error
3522 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3525 *) Turn on RSA blinding by default in the default implementation
3526 to avoid a timing attack. Applications that don't want it can call
3527 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3528 They would be ill-advised to do so in most cases.
3529 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3531 *) Change RSA blinding code so that it works when the PRNG is not
3532 seeded (in this case, the secret RSA exponent is abused as
3533 an unpredictable seed -- if it is not unpredictable, there
3534 is no point in blinding anyway). Make RSA blinding thread-safe
3535 by remembering the creator's thread ID in rsa->blinding and
3536 having all other threads use local one-time blinding factors
3537 (this requires more computation than sharing rsa->blinding, but
3538 avoids excessive locking; and if an RSA object is not shared
3539 between threads, blinding will still be very fast).
3542 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3543 ENGINE as defaults for all supported algorithms irrespective of
3544 the 'flags' parameter. 'flags' is now honoured, so applications
3545 should make sure they are passing it correctly.
3548 *) Target "mingw" now allows native Windows code to be generated in
3549 the Cygwin environment as well as with the MinGW compiler.
3552 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3554 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3555 via timing by performing a MAC computation even if incorrrect
3556 block cipher padding has been found. This is a countermeasure
3557 against active attacks where the attacker has to distinguish
3558 between bad padding and a MAC verification error. (CVE-2003-0078)
3560 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3561 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3562 Martin Vuagnoux (EPFL, Ilion)]
3564 *) Make the no-err option work as intended. The intention with no-err
3565 is not to have the whole error stack handling routines removed from
3566 libcrypto, it's only intended to remove all the function name and
3567 reason texts, thereby removing some of the footprint that may not
3568 be interesting if those errors aren't displayed anyway.
3570 NOTE: it's still possible for any application or module to have it's
3571 own set of error texts inserted. The routines are there, just not
3572 used by default when no-err is given.
3575 *) Add support for FreeBSD on IA64.
3576 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3578 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3579 Kerberos function mit_des_cbc_cksum(). Before this change,
3580 the value returned by DES_cbc_cksum() was like the one from
3581 mit_des_cbc_cksum(), except the bytes were swapped.
3582 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3584 *) Allow an application to disable the automatic SSL chain building.
3585 Before this a rather primitive chain build was always performed in
3586 ssl3_output_cert_chain(): an application had no way to send the
3587 correct chain if the automatic operation produced an incorrect result.
3589 Now the chain builder is disabled if either:
3591 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3593 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3595 The reasoning behind this is that an application would not want the
3596 auto chain building to take place if extra chain certificates are
3597 present and it might also want a means of sending no additional
3598 certificates (for example the chain has two certificates and the
3602 *) Add the possibility to build without the ENGINE framework.
3603 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3605 *) Under Win32 gmtime() can return NULL: check return value in
3606 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3609 *) DSA routines: under certain error conditions uninitialized BN objects
3610 could be freed. Solution: make sure initialization is performed early
3611 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3612 Nils Larsch <nla@trustcenter.de> via PR#459)
3615 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3616 checked on reconnect on the client side, therefore session resumption
3617 could still fail with a "ssl session id is different" error. This
3618 behaviour is masked when SSL_OP_ALL is used due to
3619 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3620 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3621 followup to PR #377.
3624 *) IA-32 assembler support enhancements: unified ELF targets, support
3625 for SCO/Caldera platforms, fix for Cygwin shared build.
3628 *) Add support for FreeBSD on sparc64. As a consequence, support for
3629 FreeBSD on non-x86 processors is separate from x86 processors on
3630 the config script, much like the NetBSD support.
3631 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3633 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3635 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3638 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3639 code (06) was taken as the first octet of the session ID and the last
3640 octet was ignored consequently. As a result SSLv2 client side session
3641 caching could not have worked due to the session ID mismatch between
3643 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3647 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3648 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3652 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3653 seems that in spite of existing for more than a year, many application
3654 author have done nothing to provide the necessary callbacks, which
3655 means that this particular engine will not work properly anywhere.
3656 This is a very unfortunate situation which forces us, in the name
3657 of usability, to give the hw_ncipher.c a static lock, which is part
3659 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3660 appear in 0.9.8 or later. We EXPECT application authors to have
3661 dealt properly with this when 0.9.8 is released (unless we actually
3662 make such changes in the libcrypto locking code that changes will
3663 have to be made anyway).
3666 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3667 octets have been read, EOF or an error occurs. Without this change
3668 some truncated ASN1 structures will not produce an error.
3671 *) Disable Heimdal support, since it hasn't been fully implemented.
3672 Still give the possibility to force the use of Heimdal, but with
3673 warnings and a request that patches get sent to openssl-dev.
3676 *) Add the VC-CE target, introduce the WINCE sysname, and add
3677 INSTALL.WCE and appropriate conditionals to make it build.
3678 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3680 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3681 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3682 edit numbers of the version.
3683 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3685 *) Introduce safe string copy and catenation functions
3686 (BUF_strlcpy() and BUF_strlcat()).
3687 [Ben Laurie (CHATS) and Richard Levitte]
3689 *) Avoid using fixed-size buffers for one-line DNs.
3690 [Ben Laurie (CHATS)]
3692 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3693 resizing buffers containing secrets, and use where appropriate.
3694 [Ben Laurie (CHATS)]
3696 *) Avoid using fixed size buffers for configuration file location.
3697 [Ben Laurie (CHATS)]
3699 *) Avoid filename truncation for various CA files.
3700 [Ben Laurie (CHATS)]
3702 *) Use sizeof in preference to magic numbers.
3703 [Ben Laurie (CHATS)]
3705 *) Avoid filename truncation in cert requests.
3706 [Ben Laurie (CHATS)]
3708 *) Add assertions to check for (supposedly impossible) buffer
3710 [Ben Laurie (CHATS)]
3712 *) Don't cache truncated DNS entries in the local cache (this could
3713 potentially lead to a spoofing attack).
3714 [Ben Laurie (CHATS)]
3716 *) Fix various buffers to be large enough for hex/decimal
3717 representations in a platform independent manner.
3718 [Ben Laurie (CHATS)]
3720 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3721 resizing buffers containing secrets, and use where appropriate.
3722 [Ben Laurie (CHATS)]
3724 *) Add BIO_indent() to avoid much slightly worrying code to do
3726 [Ben Laurie (CHATS)]
3728 *) Convert sprintf()/BIO_puts() to BIO_printf().
3729 [Ben Laurie (CHATS)]
3731 *) buffer_gets() could terminate with the buffer only half
3733 [Ben Laurie (CHATS)]
3735 *) Add assertions to prevent user-supplied crypto functions from
3736 overflowing internal buffers by having large block sizes, etc.
3737 [Ben Laurie (CHATS)]
3739 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3741 [Ben Laurie (CHATS)]
3743 *) Eliminate unused copy of key in RC4.
3744 [Ben Laurie (CHATS)]
3746 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3747 [Ben Laurie (CHATS)]
3749 *) Fix off-by-one error in EGD path.
3750 [Ben Laurie (CHATS)]
3752 *) If RANDFILE path is too long, ignore instead of truncating.
3753 [Ben Laurie (CHATS)]
3755 *) Eliminate unused and incorrectly sized X.509 structure
3757 [Ben Laurie (CHATS)]
3759 *) Eliminate unused and dangerous function knumber().
3760 [Ben Laurie (CHATS)]
3762 *) Eliminate unused and dangerous structure, KSSL_ERR.
3763 [Ben Laurie (CHATS)]
3765 *) Protect against overlong session ID context length in an encoded
3766 session object. Since these are local, this does not appear to be
3768 [Ben Laurie (CHATS)]
3770 *) Change from security patch (see 0.9.6e below) that did not affect
3771 the 0.9.6 release series:
3773 Remote buffer overflow in SSL3 protocol - an attacker could
3774 supply an oversized master key in Kerberos-enabled versions.
3776 [Ben Laurie (CHATS)]
3778 *) Change the SSL kerb5 codes to match RFC 2712.
3781 *) Make -nameopt work fully for req and add -reqopt switch.
3782 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3784 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3785 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3787 *) Make sure tests can be performed even if the corresponding algorithms
3788 have been removed entirely. This was also the last step to make
3789 OpenSSL compilable with DJGPP under all reasonable conditions.
3790 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3792 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3793 to allow version independent disabling of normally unselected ciphers,
3794 which may be activated as a side-effect of selecting a single cipher.
3796 (E.g., cipher list string "RSA" enables ciphersuites that are left
3797 out of "ALL" because they do not provide symmetric encryption.
3798 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3799 [Lutz Jaenicke, Bodo Moeller]
3801 *) Add appropriate support for separate platform-dependent build
3802 directories. The recommended way to make a platform-dependent
3803 build directory is the following (tested on Linux), maybe with
3806 # Place yourself outside of the OpenSSL source tree. In
3807 # this example, the environment variable OPENSSL_SOURCE
3808 # is assumed to contain the absolute OpenSSL source directory.
3809 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3810 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3811 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3812 mkdir -p `dirname $F`
3813 ln -s $OPENSSL_SOURCE/$F $F
3816 To be absolutely sure not to disturb the source tree, a "make clean"
3817 is a good thing. If it isn't successfull, don't worry about it,
3818 it probably means the source directory is very clean.
3821 *) Make sure any ENGINE control commands make local copies of string
3822 pointers passed to them whenever necessary. Otherwise it is possible
3823 the caller may have overwritten (or deallocated) the original string
3824 data when a later ENGINE operation tries to use the stored values.
3825 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3827 *) Improve diagnostics in file reading and command-line digests.
3828 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3830 *) Add AES modes CFB and OFB to the object database. Correct an
3831 error in AES-CFB decryption.
3834 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3835 allows existing EVP_CIPHER_CTX structures to be reused after
3836 calling EVP_*Final(). This behaviour is used by encryption
3837 BIOs and some applications. This has the side effect that
3838 applications must explicitly clean up cipher contexts with
3839 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3842 *) Check the values of dna and dnb in bn_mul_recursive before calling
3843 bn_mul_comba (a non zero value means the a or b arrays do not contain
3844 n2 elements) and fallback to bn_mul_normal if either is not zero.
3847 *) Fix escaping of non-ASCII characters when using the -subj option
3848 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3851 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3852 form for "surname", serialNumber has no short form.
3853 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3854 therefore remove "mail" short name for "internet 7".
3855 The OID for unique identifiers in X509 certificates is
3856 x500UniqueIdentifier, not uniqueIdentifier.
3857 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3860 *) Add an "init" command to the ENGINE config module and auto initialize
3861 ENGINEs. Without any "init" command the ENGINE will be initialized
3862 after all ctrl commands have been executed on it. If init=1 the
3863 ENGINE is initailized at that point (ctrls before that point are run
3864 on the uninitialized ENGINE and after on the initialized one). If
3865 init=0 then the ENGINE will not be iniatialized at all.
3868 *) Fix the 'app_verify_callback' interface so that the user-defined
3869 argument is actually passed to the callback: In the
3870 SSL_CTX_set_cert_verify_callback() prototype, the callback
3871 declaration has been changed from
3874 int (*cb)(X509_STORE_CTX *,void *);
3875 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3876 i=s->ctx->app_verify_callback(&ctx)
3877 has been changed into
3878 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3880 To update applications using SSL_CTX_set_cert_verify_callback(),
3881 a dummy argument can be added to their callback functions.
3882 [D. K. Smetters <smetters@parc.xerox.com>]
3884 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3885 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3887 *) Add and OPENSSL_LOAD_CONF define which will cause
3888 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3889 This allows older applications to transparently support certain
3890 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3891 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3892 load the config file and OPENSSL_add_all_algorithms_conf() which will
3893 always load it have also been added.
3896 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3897 Adjust NIDs and EVP layer.
3898 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3900 *) Config modules support in openssl utility.
3902 Most commands now load modules from the config file,
3903 though in a few (such as version) this isn't done
3904 because it couldn't be used for anything.
3906 In the case of ca and req the config file used is
3907 the same as the utility itself: that is the -config
3908 command line option can be used to specify an
3912 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3913 use "openssl_conf" if filename is NULL use default openssl config file.
3916 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3917 config section name. Add a new flag to tolerate a missing config file
3918 and move code to CONF_modules_load_file().
3921 *) Support for crypto accelerator cards from Accelerated Encryption
3922 Processing, www.aep.ie. (Use engine 'aep')
3923 The support was copied from 0.9.6c [engine] and adapted/corrected
3924 to work with the new engine framework.
3925 [AEP Inc. and Richard Levitte]
3927 *) Support for SureWare crypto accelerator cards from Baltimore
3928 Technologies. (Use engine 'sureware')
3929 The support was copied from 0.9.6c [engine] and adapted
3930 to work with the new engine framework.
3933 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3934 make the newer ENGINE framework commands for the CHIL engine work.
3935 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3937 *) Make it possible to produce shared libraries on ReliantUNIX.
3938 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3940 *) Add the configuration target debug-linux-ppro.
3941 Make 'openssl rsa' use the general key loading routines
3942 implemented in apps.c, and make those routines able to
3943 handle the key format FORMAT_NETSCAPE and the variant
3945 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3947 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3948 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3950 *) Add -keyform to rsautl, and document -engine.
3951 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3953 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3954 BIO_R_NO_SUCH_FILE error code rather than the generic
3955 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3958 *) Add new functions
3960 ERR_peek_last_error_line
3961 ERR_peek_last_error_line_data.
3962 These are similar to
3965 ERR_peek_error_line_data,
3966 but report on the latest error recorded rather than the first one
3967 still in the error queue.
3968 [Ben Laurie, Bodo Moeller]
3970 *) default_algorithms option in ENGINE config module. This allows things
3972 default_algorithms = ALL
3973 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3976 *) Prelminary ENGINE config module.
3979 *) New experimental application configuration code.
3982 *) Change the AES code to follow the same name structure as all other
3983 symmetric ciphers, and behave the same way. Move everything to
3984 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3985 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3987 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3988 [Ben Laurie and Theo de Raadt]
3990 *) Add option to output public keys in req command.
3991 [Massimiliano Pala madwolf@openca.org]
3993 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3994 (up to about 10% better than before for P-192 and P-224).
3997 *) New functions/macros
3999 SSL_CTX_set_msg_callback(ctx, cb)
4000 SSL_CTX_set_msg_callback_arg(ctx, arg)
4001 SSL_set_msg_callback(ssl, cb)
4002 SSL_set_msg_callback_arg(ssl, arg)
4004 to request calling a callback function
4006 void cb(int write_p, int version, int content_type,
4007 const void *buf, size_t len, SSL *ssl, void *arg)
4009 whenever a protocol message has been completely received
4010 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4011 protocol version according to which the SSL library interprets
4012 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4013 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4014 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4015 specification (change_cipher_spec(20), alert(21), handshake(22)).
4016 'buf' and 'len' point to the actual message, 'ssl' to the
4017 SSL object, and 'arg' is the application-defined value set by
4018 SSL[_CTX]_set_msg_callback_arg().
4020 'openssl s_client' and 'openssl s_server' have new '-msg' options
4021 to enable a callback that displays all protocol messages.
4024 *) Change the shared library support so shared libraries are built as
4025 soon as the corresponding static library is finished, and thereby get
4026 openssl and the test programs linked against the shared library.
4027 This still only happens when the keyword "shard" has been given to
4028 the configuration scripts.
4030 NOTE: shared library support is still an experimental thing, and
4031 backward binary compatibility is still not guaranteed.
4032 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4034 *) Add support for Subject Information Access extension.
4035 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4037 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4038 additional bytes when new memory had to be allocated, not just
4039 when reusing an existing buffer.
4042 *) New command line and configuration option 'utf8' for the req command.
4043 This allows field values to be specified as UTF8 strings.
4046 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4047 runs for the former and machine-readable output for the latter.
4050 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4051 of the e-mail address in the DN (i.e., it will go into a certificate
4052 extension only). The new configuration file option 'email_in_dn = no'
4053 has the same effect.
4054 [Massimiliano Pala madwolf@openca.org]
4056 *) Change all functions with names starting with des_ to be starting
4057 with DES_ instead. Add wrappers that are compatible with libdes,
4058 but are named _ossl_old_des_*. Finally, add macros that map the
4059 des_* symbols to the corresponding _ossl_old_des_* if libdes
4060 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4061 desired, the des_* symbols will be mapped to DES_*, with one
4064 Since we provide two compatibility mappings, the user needs to
4065 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4066 compatibility is desired. The default (i.e., when that macro
4067 isn't defined) is OpenSSL 0.9.6c compatibility.
4069 There are also macros that enable and disable the support of old
4070 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4071 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4072 are defined, the default will apply: to support the old des routines.
4074 In either case, one must include openssl/des.h to get the correct
4075 definitions. Do not try to just include openssl/des_old.h, that
4078 NOTE: This is a major break of an old API into a new one. Software
4079 authors are encouraged to switch to the DES_ style functions. Some
4080 time in the future, des_old.h and the libdes compatibility functions
4081 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4082 default), and then completely removed.
4085 *) Test for certificates which contain unsupported critical extensions.
4086 If such a certificate is found during a verify operation it is
4087 rejected by default: this behaviour can be overridden by either
4088 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4089 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4090 X509_supported_extension() has also been added which returns 1 if a
4091 particular extension is supported.
4094 *) Modify the behaviour of EVP cipher functions in similar way to digests
4095 to retain compatibility with existing code.
4098 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4099 compatibility with existing code. In particular the 'ctx' parameter does
4100 not have to be to be initialized before the call to EVP_DigestInit() and
4101 it is tidied up after a call to EVP_DigestFinal(). New function
4102 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4103 EVP_MD_CTX_copy() changed to not require the destination to be
4104 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4105 requires the destination to be valid.
4107 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4108 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4111 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4112 so that complete 'Handshake' protocol structures are kept in memory
4113 instead of overwriting 'msg_type' and 'length' with 'body' data.
4116 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4117 [Massimo Santin via Richard Levitte]
4119 *) Major restructuring to the underlying ENGINE code. This includes
4120 reduction of linker bloat, separation of pure "ENGINE" manipulation
4121 (initialisation, etc) from functionality dealing with implementations
4122 of specific crypto iterfaces. This change also introduces integrated
4123 support for symmetric ciphers and digest implementations - so ENGINEs
4124 can now accelerate these by providing EVP_CIPHER and EVP_MD
4125 implementations of their own. This is detailed in crypto/engine/README
4126 as it couldn't be adequately described here. However, there are a few
4127 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4128 were changed in the original introduction of ENGINE code have now
4129 reverted back - the hooking from this code to ENGINE is now a good
4130 deal more passive and at run-time, operations deal directly with
4131 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4132 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4133 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4134 they were not being used by the framework as there is no concept of a
4135 BIGNUM_METHOD and they could not be generalised to the new
4136 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4137 ENGINE_cpy() has been removed as it cannot be consistently defined in
4141 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4144 *) Change mkdef.pl to sort symbols that get the same entry number,
4145 and make sure the automatically generated functions ERR_load_*
4146 become part of libeay.num as well.
4149 *) New function SSL_renegotiate_pending(). This returns true once
4150 renegotiation has been requested (either SSL_renegotiate() call
4151 or HelloRequest/ClientHello receveived from the peer) and becomes
4152 false once a handshake has been completed.
4153 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4154 sends a HelloRequest, but does not ensure that a handshake takes
4155 place. SSL_renegotiate_pending() is useful for checking if the
4156 client has followed the request.)
4159 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4160 By default, clients may request session resumption even during
4161 renegotiation (if session ID contexts permit); with this option,
4162 session resumption is possible only in the first handshake.
4164 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4165 more bits available for options that should not be part of
4166 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4169 *) Add some demos for certificate and certificate request creation.
4172 *) Make maximum certificate chain size accepted from the peer application
4173 settable (SSL*_get/set_max_cert_list()), as proposed by
4174 "Douglas E. Engert" <deengert@anl.gov>.
4177 *) Add support for shared libraries for Unixware-7
4178 (Boyd Lynn Gerber <gerberb@zenez.com>).
4181 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4182 be done prior to destruction. Use this to unload error strings from
4183 ENGINEs that load their own error strings. NB: This adds two new API
4184 functions to "get" and "set" this destroy handler in an ENGINE.
4187 *) Alter all existing ENGINE implementations (except "openssl" and
4188 "openbsd") to dynamically instantiate their own error strings. This
4189 makes them more flexible to be built both as statically-linked ENGINEs
4190 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4191 Also, add stub code to each that makes building them as self-contained
4192 shared-libraries easier (see README.ENGINE).
4195 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4196 implementations into applications that are completely implemented in
4197 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4198 commands that can be used to configure what shared-library to load and
4199 to control aspects of the way it is handled. Also, made an update to
4200 the README.ENGINE file that brings its information up-to-date and
4201 provides some information and instructions on the "dynamic" ENGINE
4202 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4205 *) Make it possible to unload ranges of ERR strings with a new
4206 "ERR_unload_strings" function.
4209 *) Add a copy() function to EVP_MD.
4212 *) Make EVP_MD routines take a context pointer instead of just the
4213 md_data void pointer.
4216 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4217 that the digest can only process a single chunk of data
4218 (typically because it is provided by a piece of
4219 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4220 is only going to provide a single chunk of data, and hence the
4221 framework needn't accumulate the data for oneshot drivers.
4224 *) As with "ERR", make it possible to replace the underlying "ex_data"
4225 functions. This change also alters the storage and management of global
4226 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4227 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4228 index counters. The API functions that use this state have been changed
4229 to take a "class_index" rather than pointers to the class's local STACK
4230 and counter, and there is now an API function to dynamically create new
4231 classes. This centralisation allows us to (a) plug a lot of the
4232 thread-safety problems that existed, and (b) makes it possible to clean
4233 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4234 such data would previously have always leaked in application code and
4235 workarounds were in place to make the memory debugging turn a blind eye
4236 to it. Application code that doesn't use this new function will still
4237 leak as before, but their memory debugging output will announce it now
4238 rather than letting it slide.
4240 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4241 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4242 has a return value to indicate success or failure.
4245 *) Make it possible to replace the underlying "ERR" functions such that the
4246 global state (2 LHASH tables and 2 locks) is only used by the "default"
4247 implementation. This change also adds two functions to "get" and "set"
4248 the implementation prior to it being automatically set the first time
4249 any other ERR function takes place. Ie. an application can call "get",
4250 pass the return value to a module it has just loaded, and that module
4251 can call its own "set" function using that value. This means the
4252 module's "ERR" operations will use (and modify) the error state in the
4253 application and not in its own statically linked copy of OpenSSL code.
4256 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4257 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4258 the operation, and provides a more encapsulated way for external code
4259 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4260 to use these functions rather than manually incrementing the counts.
4262 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4265 *) Add EVP test program.
4268 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4271 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4272 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4273 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4274 These allow a CRL to be built without having to access X509_CRL fields
4275 directly. Modify 'ca' application to use new functions.
4278 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4279 bug workarounds. Rollback attack detection is a security feature.
4280 The problem will only arise on OpenSSL servers when TLSv1 is not
4281 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4282 Software authors not wanting to support TLSv1 will have special reasons
4283 for their choice and can explicitly enable this option.
4284 [Bodo Moeller, Lutz Jaenicke]
4286 *) Rationalise EVP so it can be extended: don't include a union of
4287 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4288 (similar to those existing for EVP_CIPHER_CTX).
4293 EVP_MD_CTX_init(&md); /* new function call */
4294 EVP_DigestInit(&md, EVP_sha1());
4295 EVP_DigestUpdate(&md, in, len);
4296 EVP_DigestFinal(&md, out, NULL);
4297 EVP_MD_CTX_cleanup(&md); /* new function call */
4301 *) Make DES key schedule conform to the usual scheme, as well as
4302 correcting its structure. This means that calls to DES functions
4303 now have to pass a pointer to a des_key_schedule instead of a
4304 plain des_key_schedule (which was actually always a pointer
4307 des_key_schedule ks;
4309 des_set_key_checked(..., &ks);
4310 des_ncbc_encrypt(..., &ks, ...);
4312 (Note that a later change renames 'des_...' into 'DES_...'.)
4315 *) Initial reduction of linker bloat: the use of some functions, such as
4316 PEM causes large amounts of unused functions to be linked in due to
4317 poor organisation. For example pem_all.c contains every PEM function
4318 which has a knock on effect of linking in large amounts of (unused)
4319 ASN1 code. Grouping together similar functions and splitting unrelated
4320 functions prevents this.
4323 *) Cleanup of EVP macros.
4326 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4327 correct _ecb suffix.
4330 *) Add initial OCSP responder support to ocsp application. The
4331 revocation information is handled using the text based index
4332 use by the ca application. The responder can either handle
4333 requests generated internally, supplied in files (for example
4334 via a CGI script) or using an internal minimal server.
4337 *) Add configuration choices to get zlib compression for TLS.
4340 *) Changes to Kerberos SSL for RFC 2712 compliance:
4341 1. Implemented real KerberosWrapper, instead of just using
4342 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4343 2. Implemented optional authenticator field of KerberosWrapper.
4345 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4346 and authenticator structs; see crypto/krb5/.
4348 Generalized Kerberos calls to support multiple Kerberos libraries.
4349 [Vern Staats <staatsvr@asc.hpc.mil>,
4350 Jeffrey Altman <jaltman@columbia.edu>
4351 via Richard Levitte]
4353 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4354 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4355 values for each of the key sizes rather than having just
4356 parameters (and 'speed' generating keys each time).
4359 *) Speed up EVP routines.
4362 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4363 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4364 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4365 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4367 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4368 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4369 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4372 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4374 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4377 *) Added the OS2-EMX target.
4378 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4380 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4381 to support NCONF routines in extension code. New function CONF_set_nconf()
4382 to allow functions which take an NCONF to also handle the old LHASH
4383 structure: this means that the old CONF compatible routines can be
4384 retained (in particular wrt extensions) without having to duplicate the
4385 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4388 *) Enhance the general user interface with mechanisms for inner control
4389 and with possibilities to have yes/no kind of prompts.
4392 *) Change all calls to low level digest routines in the library and
4393 applications to use EVP. Add missing calls to HMAC_cleanup() and
4394 don't assume HMAC_CTX can be copied using memcpy().
4395 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4397 *) Add the possibility to control engines through control names but with
4398 arbitrary arguments instead of just a string.
4399 Change the key loaders to take a UI_METHOD instead of a callback
4400 function pointer. NOTE: this breaks binary compatibility with earlier
4401 versions of OpenSSL [engine].
4402 Adapt the nCipher code for these new conditions and add a card insertion
4406 *) Enhance the general user interface with mechanisms to better support
4407 dialog box interfaces, application-defined prompts, the possibility
4408 to use defaults (for example default passwords from somewhere else)
4409 and interrupts/cancellations.
4412 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4413 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4416 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4417 tidy up some unnecessarily weird code in 'sk_new()').
4418 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4420 *) Change the key loading routines for ENGINEs to use the same kind
4421 callback (pem_password_cb) as all other routines that need this
4425 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4426 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4427 than this minimum value is recommended.
4430 *) New random seeder for OpenVMS, using the system process statistics
4431 that are easily reachable.
4434 *) Windows apparently can't transparently handle global
4435 variables defined in DLLs. Initialisations such as:
4437 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4439 wont compile. This is used by the any applications that need to
4440 declare their own ASN1 modules. This was fixed by adding the option
4441 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4442 needed for static libraries under Win32.
4445 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4446 setting of purpose and trust fields. New X509_STORE trust and
4447 purpose functions and tidy up setting in other SSL functions.
4450 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4451 structure. These are inherited by X509_STORE_CTX when it is
4452 initialised. This allows various defaults to be set in the
4453 X509_STORE structure (such as flags for CRL checking and custom
4454 purpose or trust settings) for functions which only use X509_STORE_CTX
4455 internally such as S/MIME.
4457 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4458 trust settings if they are not set in X509_STORE. This allows X509_STORE
4459 purposes and trust (in S/MIME for example) to override any set by default.
4461 Add command line options for CRL checking to smime, s_client and s_server
4465 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4466 are set then the CRL is looked up in the X509_STORE structure and
4467 its validity and signature checked, then if the certificate is found
4468 in the CRL the verify fails with a revoked error.
4470 Various new CRL related callbacks added to X509_STORE_CTX structure.
4472 Command line options added to 'verify' application to support this.
4474 This needs some additional work, such as being able to handle multiple
4475 CRLs with different times, extension based lookup (rather than just
4476 by subject name) and ultimately more complete V2 CRL extension
4480 *) Add a general user interface API (crypto/ui/). This is designed
4481 to replace things like des_read_password and friends (backward
4482 compatibility functions using this new API are provided).
4483 The purpose is to remove prompting functions from the DES code
4484 section as well as provide for prompting through dialog boxes in
4485 a window system and the like.
4488 *) Add "ex_data" support to ENGINE so implementations can add state at a
4489 per-structure level rather than having to store it globally.
4492 *) Make it possible for ENGINE structures to be copied when retrieved by
4493 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4494 This causes the "original" ENGINE structure to act like a template,
4495 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4496 operational state can be localised to each ENGINE structure, despite the
4497 fact they all share the same "methods". New ENGINE structures returned in
4498 this case have no functional references and the return value is the single
4499 structural reference. This matches the single structural reference returned
4500 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4504 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4505 needs to match any other type at all we need to manually clear the
4509 *) Changes to the "openssl engine" utility to include;
4510 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4511 about an ENGINE's available control commands.
4512 - executing control commands from command line arguments using the
4513 '-pre' and '-post' switches. '-post' is only used if '-t' is
4514 specified and the ENGINE is successfully initialised. The syntax for
4515 the individual commands are colon-separated, for example;
4516 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4519 *) New dynamic control command support for ENGINEs. ENGINEs can now
4520 declare their own commands (numbers), names (strings), descriptions,
4521 and input types for run-time discovery by calling applications. A
4522 subset of these commands are implicitly classed as "executable"
4523 depending on their input type, and only these can be invoked through
4524 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4525 can be based on user input, config files, etc). The distinction is
4526 that "executable" commands cannot return anything other than a boolean
4527 result and can only support numeric or string input, whereas some
4528 discoverable commands may only be for direct use through
4529 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4530 pointers, or other custom uses. The "executable" commands are to
4531 support parameterisations of ENGINE behaviour that can be
4532 unambiguously defined by ENGINEs and used consistently across any
4533 OpenSSL-based application. Commands have been added to all the
4534 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4535 control over shared-library paths without source code alterations.
4538 *) Changed all ENGINE implementations to dynamically allocate their
4539 ENGINEs rather than declaring them statically. Apart from this being
4540 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4541 this also allows the implementations to compile without using the
4542 internal engine_int.h header.
4545 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4546 'const' value. Any code that should be able to modify a RAND_METHOD
4547 should already have non-const pointers to it (ie. they should only
4548 modify their own ones).
4551 *) Made a variety of little tweaks to the ENGINE code.
4552 - "atalla" and "ubsec" string definitions were moved from header files
4553 to C code. "nuron" string definitions were placed in variables
4554 rather than hard-coded - allowing parameterisation of these values
4555 later on via ctrl() commands.
4556 - Removed unused "#if 0"'d code.
4557 - Fixed engine list iteration code so it uses ENGINE_free() to release
4558 structural references.
4559 - Constified the RAND_METHOD element of ENGINE structures.
4560 - Constified various get/set functions as appropriate and added
4561 missing functions (including a catch-all ENGINE_cpy that duplicates
4562 all ENGINE values onto a new ENGINE except reference counts/state).
4563 - Removed NULL parameter checks in get/set functions. Setting a method
4564 or function to NULL is a way of cancelling out a previously set
4565 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4566 and doesn't justify the extra error symbols and code.
4567 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4568 flags from engine_int.h to engine.h.
4569 - Changed prototypes for ENGINE handler functions (init(), finish(),
4570 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4573 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4574 to the algorithm using long division. The binary algorithm can be
4575 used only if the modulus is odd. On 32-bit systems, it is faster
4576 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4577 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4578 up to 450 bits. In 64-bit environments, the binary algorithm
4579 appears to be advantageous for much longer moduli; here we use it
4580 for moduli up to 2048 bits.
4583 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4584 could not support the combine flag in choice fields.
4587 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4588 extensions from a certificate request to the certificate.
4591 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4592 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4593 file: this allows the display of the certificate about to be
4594 signed to be customised, to allow certain fields to be included
4595 or excluded and extension details. The old system didn't display
4596 multicharacter strings properly, omitted fields not in the policy
4597 and couldn't display additional details such as extensions.
4600 *) Function EC_POINTs_mul for multiple scalar multiplication
4601 of an arbitrary number of elliptic curve points
4602 \sum scalars[i]*points[i],
4603 optionally including the generator defined for the EC_GROUP:
4604 scalar*generator + \sum scalars[i]*points[i].
4606 EC_POINT_mul is a simple wrapper function for the typical case
4607 that the point list has just one item (besides the optional
4611 *) First EC_METHODs for curves over GF(p):
4613 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4614 operations and provides various method functions that can also
4615 operate with faster implementations of modular arithmetic.
4617 EC_GFp_mont_method() reuses most functions that are part of
4618 EC_GFp_simple_method, but uses Montgomery arithmetic.
4620 [Bodo Moeller; point addition and point doubling
4621 implementation directly derived from source code provided by
4622 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4624 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4625 crypto/ec/ec_lib.c):
4627 Curves are EC_GROUP objects (with an optional group generator)
4628 based on EC_METHODs that are built into the library.
4630 Points are EC_POINT objects based on EC_GROUP objects.
4632 Most of the framework would be able to handle curves over arbitrary
4633 finite fields, but as there are no obvious types for fields other
4634 than GF(p), some functions are limited to that for now.
4637 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4638 that the file contains a complete HTTP response.
4641 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4642 change the def and num file printf format specifier from "%-40sXXX"
4643 to "%-39s XXX". The latter will always guarantee a space after the
4644 field while the former will cause them to run together if the field
4645 is 40 of more characters long.
4648 *) Constify the cipher and digest 'method' functions and structures
4649 and modify related functions to take constant EVP_MD and EVP_CIPHER
4653 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4654 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4657 *) Modify EVP_Digest*() routines so they now return values. Although the
4658 internal software routines can never fail additional hardware versions
4662 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4664 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4665 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4668 ERR_R_NESTED_ASN1_ERROR
4670 ERR_R_MISSING_ASN1_EOS
4671 were 4 .. 9, conflicting with
4672 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4674 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4675 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4677 Add new error code 'ERR_R_INTERNAL_ERROR'.
4680 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4684 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4685 sets the subject name for a new request or supersedes the
4686 subject name in a given request. Formats that can be parsed are
4687 'CN=Some Name, OU=myOU, C=IT'
4689 'CN=Some Name/OU=myOU/C=IT'.
4691 Add options '-batch' and '-verbose' to 'openssl req'.
4692 [Massimiliano Pala <madwolf@hackmasters.net>]
4694 *) Introduce the possibility to access global variables through
4695 functions on platform were that's the best way to handle exporting
4696 global variables in shared libraries. To enable this functionality,
4697 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4698 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4699 is normally done by Configure or something similar).
4701 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4702 in the source file (foo.c) like this:
4704 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4705 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4707 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4708 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4710 OPENSSL_DECLARE_GLOBAL(int,foo);
4711 #define foo OPENSSL_GLOBAL_REF(foo)
4712 OPENSSL_DECLARE_GLOBAL(double,bar);
4713 #define bar OPENSSL_GLOBAL_REF(bar)
4715 The #defines are very important, and therefore so is including the
4716 header file everywhere where the defined globals are used.
4718 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4719 of ASN.1 items, but that structure is a bit different.
4721 The largest change is in util/mkdef.pl which has been enhanced with
4722 better and easier to understand logic to choose which symbols should
4723 go into the Windows .def files as well as a number of fixes and code
4724 cleanup (among others, algorithm keywords are now sorted
4725 lexicographically to avoid constant rewrites).
4728 *) In BN_div() keep a copy of the sign of 'num' before writing the
4729 result to 'rm' because if rm==num the value will be overwritten
4730 and produce the wrong result if 'num' is negative: this caused
4731 problems with BN_mod() and BN_nnmod().
4734 *) Function OCSP_request_verify(). This checks the signature on an
4735 OCSP request and verifies the signer certificate. The signer
4736 certificate is just checked for a generic purpose and OCSP request
4740 *) Add OCSP_check_validity() function to check the validity of OCSP
4741 responses. OCSP responses are prepared in real time and may only
4742 be a few seconds old. Simply checking that the current time lies
4743 between thisUpdate and nextUpdate max reject otherwise valid responses
4744 caused by either OCSP responder or client clock inaccuracy. Instead
4745 we allow thisUpdate and nextUpdate to fall within a certain period of
4746 the current time. The age of the response can also optionally be
4747 checked. Two new options -validity_period and -status_age added to
4751 *) If signature or public key algorithm is unrecognized print out its
4752 OID rather that just UNKNOWN.
4755 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4756 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4757 ID to be generated from the issuer certificate alone which can then be
4758 passed to OCSP_id_issuer_cmp().
4761 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4762 ASN1 modules to export functions returning ASN1_ITEM pointers
4763 instead of the ASN1_ITEM structures themselves. This adds several
4764 new macros which allow the underlying ASN1 function/structure to
4765 be accessed transparently. As a result code should not use ASN1_ITEM
4766 references directly (such as &X509_it) but instead use the relevant
4767 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4768 use of the new ASN1 code on platforms where exporting structures
4769 is problematical (for example in shared libraries) but exporting
4770 functions returning pointers to structures is not.
4773 *) Add support for overriding the generation of SSL/TLS session IDs.
4774 These callbacks can be registered either in an SSL_CTX or per SSL.
4775 The purpose of this is to allow applications to control, if they wish,
4776 the arbitrary values chosen for use as session IDs, particularly as it
4777 can be useful for session caching in multiple-server environments. A
4778 command-line switch for testing this (and any client code that wishes
4779 to use such a feature) has been added to "s_server".
4780 [Geoff Thorpe, Lutz Jaenicke]
4782 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4783 of the form '#if defined(...) || defined(...) || ...' and
4784 '#if !defined(...) && !defined(...) && ...'. This also avoids
4785 the growing number of special cases it was previously handling.
4788 *) Make all configuration macros available for application by making
4789 sure they are available in opensslconf.h, by giving them names starting
4790 with "OPENSSL_" to avoid conflicts with other packages and by making
4791 sure e_os2.h will cover all platform-specific cases together with
4793 Additionally, it is now possible to define configuration/platform-
4794 specific names (called "system identities"). In the C code, these
4795 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4796 macro with the name beginning with "OPENSSL_SYS_", which is determined
4797 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4801 *) New option -set_serial to 'req' and 'x509' this allows the serial
4802 number to use to be specified on the command line. Previously self
4803 signed certificates were hard coded with serial number 0 and the
4804 CA options of 'x509' had to use a serial number in a file which was
4808 *) New options to 'ca' utility to support V2 CRL entry extensions.
4809 Currently CRL reason, invalidity date and hold instruction are
4810 supported. Add new CRL extensions to V3 code and some new objects.
4813 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4814 disable standard block padding (aka PKCS#5 padding) in the EVP
4815 API, which was previously mandatory. This means that the data is
4816 not padded in any way and so the total length much be a multiple
4817 of the block size, otherwise an error occurs.
4820 *) Initial (incomplete) OCSP SSL support.
4823 *) New function OCSP_parse_url(). This splits up a URL into its host,
4824 port and path components: primarily to parse OCSP URLs. New -url
4825 option to ocsp utility.
4828 *) New nonce behavior. The return value of OCSP_check_nonce() now
4829 reflects the various checks performed. Applications can decide
4830 whether to tolerate certain situations such as an absent nonce
4831 in a response when one was present in a request: the ocsp application
4832 just prints out a warning. New function OCSP_add1_basic_nonce()
4833 this is to allow responders to include a nonce in a response even if
4834 the request is nonce-less.
4837 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4838 skipped when using openssl x509 multiple times on a single input file,
4839 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4842 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4843 set string type: to handle setting ASN1_TIME structures. Fix ca
4844 utility to correctly initialize revocation date of CRLs.
4847 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4848 the clients preferred ciphersuites and rather use its own preferences.
4849 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4850 Internet Explorer by ensuring unchanged hash method during stepup.
4851 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4854 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4855 to aes and add a new 'exist' option to print out symbols that don't
4859 *) Additional options to ocsp utility to allow flags to be set and
4860 additional certificates supplied.
4863 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4864 OCSP client a number of certificate to only verify the response
4868 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4869 handle the new API. Currently only ECB, CBC modes supported. Add new
4872 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4873 Encryption Standard (AES) Ciphersuites for Transport Layer
4874 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4875 not enabled by default and were not part of the "ALL" ciphersuite
4876 alias because they were not yet official; they could be
4877 explicitly requested by specifying the "AESdraft" ciphersuite
4878 group alias. In the final release of OpenSSL 0.9.7, the group
4879 alias is called "AES" and is part of "ALL".)
4880 [Ben Laurie, Steve Henson, Bodo Moeller]
4882 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4883 request to response.
4886 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4887 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4888 extract information from a certificate request. OCSP_response_create()
4889 creates a response and optionally adds a basic response structure.
4890 OCSP_basic_add1_status() adds a complete single response to a basic
4891 response and returns the OCSP_SINGLERESP structure just added (to allow
4892 extensions to be included for example). OCSP_basic_add1_cert() adds a
4893 certificate to a basic response and OCSP_basic_sign() signs a basic
4894 response with various flags. New helper functions ASN1_TIME_check()
4895 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4896 (converts ASN1_TIME to GeneralizedTime).
4899 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4900 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4901 structure from a certificate. X509_pubkey_digest() digests the public_key
4902 contents: this is used in various key identifiers.
4905 *) Make sk_sort() tolerate a NULL argument.
4906 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4908 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4909 passed by the function are trusted implicitly. If any of them signed the
4910 response then it is assumed to be valid and is not verified.
4913 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4914 to data. This was previously part of the PKCS7 ASN1 code. This
4915 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4916 [Steve Henson, reported by Kenneth R. Robinette
4917 <support@securenetterm.com>]
4919 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4920 routines: without these tracing memory leaks is very painful.
4921 Fix leaks in PKCS12 and PKCS7 routines.
4924 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4925 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4926 effectively meant GeneralizedTime would never be used. Now it
4927 is initialised to -1 but X509_time_adj() now has to check the value
4928 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4929 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4930 [Steve Henson, reported by Kenneth R. Robinette
4931 <support@securenetterm.com>]
4933 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4934 result in a zero length in the ASN1_INTEGER structure which was
4935 not consistent with the structure when d2i_ASN1_INTEGER() was used
4936 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4937 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4938 where it did not print out a minus for negative ASN1_INTEGER.
4941 *) Add summary printout to ocsp utility. The various functions which
4942 convert status values to strings have been renamed to:
4943 OCSP_response_status_str(), OCSP_cert_status_str() and
4944 OCSP_crl_reason_str() and are no longer static. New options
4945 to verify nonce values and to disable verification. OCSP response
4946 printout format cleaned up.
4949 *) Add additional OCSP certificate checks. These are those specified
4950 in RFC2560. This consists of two separate checks: the CA of the
4951 certificate being checked must either be the OCSP signer certificate
4952 or the issuer of the OCSP signer certificate. In the latter case the
4953 OCSP signer certificate must contain the OCSP signing extended key
4954 usage. This check is performed by attempting to match the OCSP
4955 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4956 in the OCSP_CERTID structures of the response.
4959 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4960 and related routines. This uses the standard OpenSSL certificate
4961 verify routines to perform initial checks (just CA validity) and
4962 to obtain the certificate chain. Then additional checks will be
4963 performed on the chain. Currently the root CA is checked to see
4964 if it is explicitly trusted for OCSP signing. This is used to set
4965 a root CA as a global signing root: that is any certificate that
4966 chains to that CA is an acceptable OCSP signing certificate.
4969 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4970 extensions from a separate configuration file.
4971 As when reading extensions from the main configuration file,
4972 the '-extensions ...' option may be used for specifying the
4974 [Massimiliano Pala <madwolf@comune.modena.it>]
4976 *) New OCSP utility. Allows OCSP requests to be generated or
4977 read. The request can be sent to a responder and the output
4978 parsed, outputed or printed in text form. Not complete yet:
4979 still needs to check the OCSP response validity.
4982 *) New subcommands for 'openssl ca':
4983 'openssl ca -status <serial>' prints the status of the cert with
4984 the given serial number (according to the index file).
4985 'openssl ca -updatedb' updates the expiry status of certificates
4987 [Massimiliano Pala <madwolf@comune.modena.it>]
4989 *) New '-newreq-nodes' command option to CA.pl. This is like
4990 '-newreq', but calls 'openssl req' with the '-nodes' option
4991 so that the resulting key is not encrypted.
4992 [Damien Miller <djm@mindrot.org>]
4994 *) New configuration for the GNU Hurd.
4995 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4997 *) Initial code to implement OCSP basic response verify. This
4998 is currently incomplete. Currently just finds the signer's
4999 certificate and verifies the signature on the response.
5002 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5003 value of OPENSSLDIR. This is available via the new '-d' option
5004 to 'openssl version', and is also included in 'openssl version -a'.
5007 *) Allowing defining memory allocation callbacks that will be given
5008 file name and line number information in additional arguments
5009 (a const char* and an int). The basic functionality remains, as
5010 well as the original possibility to just replace malloc(),
5011 realloc() and free() by functions that do not know about these
5012 additional arguments. To register and find out the current
5013 settings for extended allocation functions, the following
5014 functions are provided:
5016 CRYPTO_set_mem_ex_functions
5017 CRYPTO_set_locked_mem_ex_functions
5018 CRYPTO_get_mem_ex_functions
5019 CRYPTO_get_locked_mem_ex_functions
5021 These work the same way as CRYPTO_set_mem_functions and friends.
5022 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5023 extended allocation function is enabled.
5024 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5025 a conventional allocation function is enabled.
5026 [Richard Levitte, Bodo Moeller]
5028 *) Finish off removing the remaining LHASH function pointer casts.
5029 There should no longer be any prototype-casting required when using
5030 the LHASH abstraction, and any casts that remain are "bugs". See
5031 the callback types and macros at the head of lhash.h for details
5032 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5035 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5036 If /dev/[u]random devices are not available or do not return enough
5037 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5039 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5040 /etc/entropy will be queried once each in this sequence, quering stops
5041 when enough entropy was collected without querying more sockets.
5044 *) Change the Unix RAND_poll() variant to be able to poll several
5045 random devices, as specified by DEVRANDOM, until a sufficient amount
5046 of data has been collected. We spend at most 10 ms on each file
5047 (select timeout) and read in non-blocking mode. DEVRANDOM now
5048 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5049 (previously it was just the string "/dev/urandom"), so on typical
5050 platforms the 10 ms delay will never occur.
5051 Also separate out the Unix variant to its own file, rand_unix.c.
5052 For VMS, there's a currently-empty rand_vms.c.
5055 *) Move OCSP client related routines to ocsp_cl.c. These
5056 provide utility functions which an application needing
5057 to issue a request to an OCSP responder and analyse the
5058 response will typically need: as opposed to those which an
5059 OCSP responder itself would need which will be added later.
5061 OCSP_request_sign() signs an OCSP request with an API similar
5062 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5063 response. OCSP_response_get1_basic() extracts basic response
5064 from response. OCSP_resp_find_status(): finds and extracts status
5065 information from an OCSP_CERTID structure (which will be created
5066 when the request structure is built). These are built from lower
5067 level functions which work on OCSP_SINGLERESP structures but
5068 wont normally be used unless the application wishes to examine
5069 extensions in the OCSP response for example.
5071 Replace nonce routines with a pair of functions.
5072 OCSP_request_add1_nonce() adds a nonce value and optionally
5073 generates a random value. OCSP_check_nonce() checks the
5074 validity of the nonce in an OCSP response.
5077 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5078 This doesn't copy the supplied OCSP_CERTID and avoids the
5079 need to free up the newly created id. Change return type
5080 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5081 This can then be used to add extensions to the request.
5082 Deleted OCSP_request_new(), since most of its functionality
5083 is now in OCSP_REQUEST_new() (and the case insensitive name
5084 clash) apart from the ability to set the request name which
5085 will be added elsewhere.
5088 *) Update OCSP API. Remove obsolete extensions argument from
5089 various functions. Extensions are now handled using the new
5090 OCSP extension code. New simple OCSP HTTP function which
5091 can be used to send requests and parse the response.
5094 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5095 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5096 uses the special reorder version of SET OF to sort the attributes
5097 and reorder them to match the encoded order. This resolves a long
5098 standing problem: a verify on a PKCS7 structure just after signing
5099 it used to fail because the attribute order did not match the
5100 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5101 it uses the received order. This is necessary to tolerate some broken
5102 software that does not order SET OF. This is handled by encoding
5103 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5104 to produce the required SET OF.
5107 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5108 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5109 files to get correct declarations of the ASN.1 item variables.
5112 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5113 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5114 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5115 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5116 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5117 ASN1_ITEM and no wrapper functions.
5120 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5121 replace the old function pointer based I/O routines. Change most of
5122 the *_d2i_bio() and *_d2i_fp() functions to use these.
5125 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5126 lines, recognice more "algorithms" that can be deselected, and make
5127 it complain about algorithm deselection that isn't recognised.
5130 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5131 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5132 to use new functions. Add NO_ASN1_OLD which can be set to remove
5133 some old style ASN1 functions: this can be used to determine if old
5134 code will still work when these eventually go away.
5137 *) New extension functions for OCSP structures, these follow the
5138 same conventions as certificates and CRLs.
5141 *) New function X509V3_add1_i2d(). This automatically encodes and
5142 adds an extension. Its behaviour can be customised with various
5143 flags to append, replace or delete. Various wrappers added for
5144 certifcates and CRLs.
5147 *) Fix to avoid calling the underlying ASN1 print routine when
5148 an extension cannot be parsed. Correct a typo in the
5149 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5152 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5153 entries for variables.
5156 *) Add functionality to apps/openssl.c for detecting locking
5157 problems: As the program is single-threaded, all we have
5158 to do is register a locking callback using an array for
5159 storing which locks are currently held by the program.
5162 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5163 SSL_get_ex_data_X509_STORE_idx(), which is used in
5164 ssl_verify_cert_chain() and thus can be called at any time
5165 during TLS/SSL handshakes so that thread-safety is essential.
5166 Unfortunately, the ex_data design is not at all suited
5167 for multi-threaded use, so it probably should be abolished.
5170 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5171 [Broadcom, tweaked and integrated by Geoff Thorpe]
5173 *) Move common extension printing code to new function
5174 X509V3_print_extensions(). Reorganise OCSP print routines and
5175 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5178 *) New function X509_signature_print() to remove duplication in some
5182 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5183 set (this was treated exactly the same as SET OF previously). This
5184 is used to reorder the STACK representing the structure to match the
5185 encoding. This will be used to get round a problem where a PKCS7
5186 structure which was signed could not be verified because the STACK
5187 order did not reflect the encoded order.
5190 *) Reimplement the OCSP ASN1 module using the new code.
5193 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5194 for its ASN1 operations. The old style function pointers still exist
5195 for now but they will eventually go away.
5198 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5199 completely replaces the old ASN1 functionality with a table driven
5200 encoder and decoder which interprets an ASN1_ITEM structure describing
5201 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5202 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5203 has also been converted to the new form.
5206 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5207 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5208 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5209 for negative moduli.
5212 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5213 of not touching the result's sign bit.
5216 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5220 *) Changed the LHASH code to use prototypes for callbacks, and created
5221 macros to declare and implement thin (optionally static) functions
5222 that provide type-safety and avoid function pointer casting for the
5223 type-specific callbacks.
5226 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5228 [Veers Staats <staatsvr@asc.hpc.mil>,
5229 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5231 *) Reformat the FAQ so the different questions and answers can be divided
5232 in sections depending on the subject.
5235 *) Have the zlib compression code load ZLIB.DLL dynamically under
5239 *) New function BN_mod_sqrt for computing square roots modulo a prime
5240 (using the probabilistic Tonelli-Shanks algorithm unless
5241 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5242 be handled deterministically).
5243 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5245 *) Make BN_mod_inverse faster by explicitly handling small quotients
5246 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5247 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5250 *) New function BN_kronecker.
5253 *) Fix BN_gcd so that it works on negative inputs; the result is
5254 positive unless both parameters are zero.
5255 Previously something reasonably close to an infinite loop was
5256 possible because numbers could be growing instead of shrinking
5257 in the implementation of Euclid's algorithm.
5260 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5261 sign of the number in question.
5263 Fix BN_is_word(a,w) to work correctly for w == 0.
5265 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5266 because its test if the absolute value of 'a' equals 'w'.
5267 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5268 it exists mostly for use in the implementations of BN_is_zero(),
5269 BN_is_one(), and BN_is_word().
5272 *) New function BN_swap.
5275 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5276 the exponentiation functions are more likely to produce reasonable
5277 results on negative inputs.
5280 *) Change BN_mod_mul so that the result is always non-negative.
5281 Previously, it could be negative if one of the factors was negative;
5282 I don't think anyone really wanted that behaviour.
5285 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5286 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5287 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5288 and add new functions:
5297 BN_mod_lshift1_quick
5301 These functions always generate non-negative results.
5303 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5304 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5306 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5307 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5308 be reduced modulo m.
5309 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5312 The following entry accidentily appeared in the CHANGES file
5313 distributed with OpenSSL 0.9.7. The modifications described in
5314 it do *not* apply to OpenSSL 0.9.7.
5316 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5317 was actually never needed) and in BN_mul(). The removal in BN_mul()
5318 required a small change in bn_mul_part_recursive() and the addition
5319 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5320 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5321 bn_sub_words() and bn_add_words() except they take arrays with
5326 *) In 'openssl passwd', verify passwords read from the terminal
5327 unless the '-salt' option is used (which usually means that
5328 verification would just waste user's time since the resulting
5329 hash is going to be compared with some given password hash)
5330 or the new '-noverify' option is used.
5332 This is an incompatible change, but it does not affect
5333 non-interactive use of 'openssl passwd' (passwords on the command
5334 line, '-stdin' option, '-in ...' option) and thus should not
5338 *) Remove all references to RSAref, since there's no more need for it.
5341 *) Make DSO load along a path given through an environment variable
5342 (SHLIB_PATH) with shl_load().
5345 *) Constify the ENGINE code as a result of BIGNUM constification.
5346 Also constify the RSA code and most things related to it. In a
5347 few places, most notable in the depth of the ASN.1 code, ugly
5348 casts back to non-const were required (to be solved at a later
5352 *) Make it so the openssl application has all engines loaded by default.
5355 *) Constify the BIGNUM routines a little more.
5358 *) Add the following functions:
5360 ENGINE_load_cswift()
5362 ENGINE_load_atalla()
5364 ENGINE_load_builtin_engines()
5366 That way, an application can itself choose if external engines that
5367 are built-in in OpenSSL shall ever be used or not. The benefit is
5368 that applications won't have to be linked with libdl or other dso
5369 libraries unless it's really needed.
5371 Changed 'openssl engine' to load all engines on demand.
5372 Changed the engine header files to avoid the duplication of some
5373 declarations (they differed!).
5376 *) 'openssl engine' can now list capabilities.
5379 *) Better error reporting in 'openssl engine'.
5382 *) Never call load_dh_param(NULL) in s_server.
5385 *) Add engine application. It can currently list engines by name and
5386 identity, and test if they are actually available.
5389 *) Improve RPM specification file by forcing symbolic linking and making
5390 sure the installed documentation is also owned by root.root.
5391 [Damien Miller <djm@mindrot.org>]
5393 *) Give the OpenSSL applications more possibilities to make use of
5394 keys (public as well as private) handled by engines.
5397 *) Add OCSP code that comes from CertCo.
5400 *) Add VMS support for the Rijndael code.
5403 *) Added untested support for Nuron crypto accelerator.
5406 *) Add support for external cryptographic devices. This code was
5407 previously distributed separately as the "engine" branch.
5408 [Geoff Thorpe, Richard Levitte]
5410 *) Rework the filename-translation in the DSO code. It is now possible to
5411 have far greater control over how a "name" is turned into a filename
5412 depending on the operating environment and any oddities about the
5413 different shared library filenames on each system.
5416 *) Support threads on FreeBSD-elf in Configure.
5419 *) Fix for SHA1 assembly problem with MASM: it produces
5420 warnings about corrupt line number information when assembling
5421 with debugging information. This is caused by the overlapping
5423 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5426 NCONF_get_number() has no error checking at all. As a replacement,
5427 NCONF_get_number_e() is defined (_e for "error checking") and is
5428 promoted strongly. The old NCONF_get_number is kept around for
5429 binary backward compatibility.
5430 Make it possible for methods to load from something other than a BIO,
5431 by providing a function pointer that is given a name instead of a BIO.
5432 For example, this could be used to load configuration data from an
5436 *) Fix for non blocking accept BIOs. Added new I/O special reason
5437 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5438 with non blocking I/O was not possible because no retry code was
5439 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5443 *) Added the beginnings of Rijndael support.
5446 *) Fix for bug in DirectoryString mask setting. Add support for
5447 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5448 to allow certificate printing to more controllable, additional
5449 'certopt' option to 'x509' to allow new printing options to be
5453 *) Clean old EAY MD5 hack from e_os.h.
5456 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5458 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5459 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5460 [Joe Orton, Steve Henson]
5462 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5464 *) Fix additional bug revealed by the NISCC test suite:
5466 Stop bug triggering large recursion when presented with
5467 certain ASN.1 tags (CVE-2003-0851)
5470 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5472 *) Fix various bugs revealed by running the NISCC test suite:
5474 Stop out of bounds reads in the ASN1 code when presented with
5475 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5477 If verify callback ignores invalid public key errors don't try to check
5478 certificate signature with the NULL public key.
5482 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5483 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5487 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5488 extra data after the compression methods not only for TLS 1.0
5489 but also for SSL 3.0 (as required by the specification).
5490 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5492 *) Change X509_certificate_type() to mark the key as exported/exportable
5493 when it's 512 *bits* long, not 512 bytes.
5496 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5498 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5499 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5500 a protocol version number mismatch like a decryption error
5501 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5504 *) Turn on RSA blinding by default in the default implementation
5505 to avoid a timing attack. Applications that don't want it can call
5506 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5507 They would be ill-advised to do so in most cases.
5508 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5510 *) Change RSA blinding code so that it works when the PRNG is not
5511 seeded (in this case, the secret RSA exponent is abused as
5512 an unpredictable seed -- if it is not unpredictable, there
5513 is no point in blinding anyway). Make RSA blinding thread-safe
5514 by remembering the creator's thread ID in rsa->blinding and
5515 having all other threads use local one-time blinding factors
5516 (this requires more computation than sharing rsa->blinding, but
5517 avoids excessive locking; and if an RSA object is not shared
5518 between threads, blinding will still be very fast).
5521 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5523 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5524 via timing by performing a MAC computation even if incorrrect
5525 block cipher padding has been found. This is a countermeasure
5526 against active attacks where the attacker has to distinguish
5527 between bad padding and a MAC verification error. (CVE-2003-0078)
5529 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5530 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5531 Martin Vuagnoux (EPFL, Ilion)]
5533 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5535 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5536 memory from it's contents. This is done with a counter that will
5537 place alternating values in each byte. This can be used to solve
5538 two issues: 1) the removal of calls to memset() by highly optimizing
5539 compilers, and 2) cleansing with other values than 0, since those can
5540 be read through on certain media, for example a swap space on disk.
5543 *) Bugfix: client side session caching did not work with external caching,
5544 because the session->cipher setting was not restored when reloading
5545 from the external cache. This problem was masked, when
5546 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5547 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5550 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5551 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5552 [Zeev Lieber <zeev-l@yahoo.com>]
5554 *) Undo an undocumented change introduced in 0.9.6e which caused
5555 repeated calls to OpenSSL_add_all_ciphers() and
5556 OpenSSL_add_all_digests() to be ignored, even after calling
5560 *) Change the default configuration reader to deal with last line not
5561 being properly terminated.
5564 *) Change X509_NAME_cmp() so it applies the special rules on handling
5565 DN values that are of type PrintableString, as well as RDNs of type
5566 emailAddress where the value has the type ia5String.
5567 [stefank@valicert.com via Richard Levitte]
5569 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5570 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5571 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5572 the bitwise-OR of the two for use by the majority of applications
5573 wanting this behaviour, and update the docs. The documented
5574 behaviour and actual behaviour were inconsistent and had been
5575 changing anyway, so this is more a bug-fix than a behavioural
5577 [Geoff Thorpe, diagnosed by Nadav Har'El]
5579 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5580 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5583 *) Fix initialization code race conditions in
5584 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5585 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5586 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5587 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5588 ssl2_get_cipher_by_char(),
5589 ssl3_get_cipher_by_char().
5590 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5592 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5593 the cached sessions are flushed, as the remove_cb() might use ex_data
5594 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5595 (see [openssl.org #212]).
5596 [Geoff Thorpe, Lutz Jaenicke]
5598 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5599 length, instead of the encoding length to d2i_ASN1_OBJECT.
5602 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5604 *) [In 0.9.6g-engine release:]
5605 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5606 [Lynn Gazis <lgazis@rainbow.com>]
5608 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5610 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5611 and get fix the header length calculation.
5612 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5613 Alon Kantor <alonk@checkpoint.com> (and others),
5616 *) Use proper error handling instead of 'assertions' in buffer
5617 overflow checks added in 0.9.6e. This prevents DoS (the
5618 assertions could call abort()).
5619 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5621 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5623 *) Add various sanity checks to asn1_get_length() to reject
5624 the ASN1 length bytes if they exceed sizeof(long), will appear
5625 negative or the content length exceeds the length of the
5627 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5629 *) Fix cipher selection routines: ciphers without encryption had no flags
5630 for the cipher strength set and where therefore not handled correctly
5631 by the selection routines (PR #130).
5634 *) Fix EVP_dsa_sha macro.
5638 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5639 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5640 that was added in OpenSSL 0.9.6d.
5642 As the countermeasure turned out to be incompatible with some
5643 broken SSL implementations, the new option is part of SSL_OP_ALL.
5644 SSL_OP_ALL is usually employed when compatibility with weird SSL
5645 implementations is desired (e.g. '-bugs' option to 's_client' and
5646 's_server'), so the new option is automatically set in many
5650 *) Changes in security patch:
5652 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5653 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5654 Air Force Materiel Command, USAF, under agreement number
5657 *) Add various sanity checks to asn1_get_length() to reject
5658 the ASN1 length bytes if they exceed sizeof(long), will appear
5659 negative or the content length exceeds the length of the
5660 supplied buffer. (CVE-2002-0659)
5661 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5663 *) Assertions for various potential buffer overflows, not known to
5665 [Ben Laurie (CHATS)]
5667 *) Various temporary buffers to hold ASCII versions of integers were
5668 too small for 64 bit platforms. (CVE-2002-0655)
5669 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5671 *) Remote buffer overflow in SSL3 protocol - an attacker could
5672 supply an oversized session ID to a client. (CVE-2002-0656)
5673 [Ben Laurie (CHATS)]
5675 *) Remote buffer overflow in SSL2 protocol - an attacker could
5676 supply an oversized client master key. (CVE-2002-0656)
5677 [Ben Laurie (CHATS)]
5679 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5681 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5682 encoded as NULL) with id-dsa-with-sha1.
5683 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5685 *) Check various X509_...() return values in apps/req.c.
5686 [Nils Larsch <nla@trustcenter.de>]
5688 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5689 an end-of-file condition would erronously be flagged, when the CRLF
5690 was just at the end of a processed block. The bug was discovered when
5691 processing data through a buffering memory BIO handing the data to a
5692 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5693 <ptsekov@syntrex.com> and Nedelcho Stanev.
5696 *) Implement a countermeasure against a vulnerability recently found
5697 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5698 before application data chunks to avoid the use of known IVs
5699 with data potentially chosen by the attacker.
5702 *) Fix length checks in ssl3_get_client_hello().
5705 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5706 to prevent ssl3_read_internal() from incorrectly assuming that
5707 ssl3_read_bytes() found application data while handshake
5708 processing was enabled when in fact s->s3->in_read_app_data was
5709 merely automatically cleared during the initial handshake.
5710 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5712 *) Fix object definitions for Private and Enterprise: they were not
5713 recognized in their shortname (=lowercase) representation. Extend
5714 obj_dat.pl to issue an error when using undefined keywords instead
5715 of silently ignoring the problem (Svenning Sorensen
5716 <sss@sss.dnsalias.net>).
5719 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5720 generators, i.e. generators other than 2 and 5. (Previously, the
5721 code did not properly initialise the 'add' and 'rem' values to
5722 BN_generate_prime().)
5724 In the new general case, we do not insist that 'generator' is
5725 actually a primitive root: This requirement is rather pointless;
5726 a generator of the order-q subgroup is just as good, if not
5730 *) Map new X509 verification errors to alerts. Discovered and submitted by
5731 Tom Wu <tom@arcot.com>.
5734 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5735 returning non-zero before the data has been completely received
5736 when using non-blocking I/O.
5737 [Bodo Moeller; problem pointed out by John Hughes]
5739 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5740 [Ben Laurie, Lutz Jaenicke]
5742 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5743 Yoram Zahavi <YoramZ@gilian.com>).
5746 *) Add information about CygWin 1.3 and on, and preserve proper
5747 configuration for the versions before that.
5748 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5750 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5751 check whether we deal with a copy of a session and do not delete from
5752 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5753 <izhar@checkpoint.com>.
5756 *) Do not store session data into the internal session cache, if it
5757 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5758 flag is set). Proposed by Aslam <aslam@funk.com>.
5761 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5765 *) [In 0.9.6d-engine release:]
5766 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5767 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5769 *) Add the configuration target linux-s390x.
5770 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5772 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5773 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5774 variable as an indication that a ClientHello message has been
5775 received. As the flag value will be lost between multiple
5776 invocations of ssl3_accept when using non-blocking I/O, the
5777 function may not be aware that a handshake has actually taken
5778 place, thus preventing a new session from being added to the
5781 To avoid this problem, we now set s->new_session to 2 instead of
5782 using a local variable.
5783 [Lutz Jaenicke, Bodo Moeller]
5785 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5786 if the SSL_R_LENGTH_MISMATCH error is detected.
5787 [Geoff Thorpe, Bodo Moeller]
5789 *) New 'shared_ldflag' column in Configure platform table.
5792 *) Fix EVP_CIPHER_mode macro.
5793 ["Dan S. Camper" <dan@bti.net>]
5795 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5796 type, we must throw them away by setting rr->length to 0.
5797 [D P Chang <dpc@qualys.com>]
5799 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5801 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5802 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5803 worked incorrectly for those cases where range = 10..._2 and
5804 3*range is two bits longer than range.)
5807 *) Only add signing time to PKCS7 structures if it is not already
5811 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5812 OBJ_ld_ce should be OBJ_id_ce.
5813 Also some ip-pda OIDs in crypto/objects/objects.txt were
5814 incorrect (cf. RFC 3039).
5815 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5817 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5818 returns early because it has nothing to do.
5819 [Andy Schneider <andy.schneider@bjss.co.uk>]
5821 *) [In 0.9.6c-engine release:]
5822 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5823 [Andy Schneider <andy.schneider@bjss.co.uk>]
5825 *) [In 0.9.6c-engine release:]
5826 Add support for Cryptographic Appliance's keyserver technology.
5827 (Use engine 'keyclient')
5828 [Cryptographic Appliances and Geoff Thorpe]
5830 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5831 is called via tools/c89.sh because arguments have to be
5832 rearranged (all '-L' options must appear before the first object
5834 [Richard Shapiro <rshapiro@abinitio.com>]
5836 *) [In 0.9.6c-engine release:]
5837 Add support for Broadcom crypto accelerator cards, backported
5839 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5841 *) [In 0.9.6c-engine release:]
5842 Add support for SureWare crypto accelerator cards from
5843 Baltimore Technologies. (Use engine 'sureware')
5844 [Baltimore Technologies and Mark Cox]
5846 *) [In 0.9.6c-engine release:]
5847 Add support for crypto accelerator cards from Accelerated
5848 Encryption Processing, www.aep.ie. (Use engine 'aep')
5849 [AEP Inc. and Mark Cox]
5851 *) Add a configuration entry for gcc on UnixWare.
5852 [Gary Benson <gbenson@redhat.com>]
5854 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5855 messages are stored in a single piece (fixed-length part and
5856 variable-length part combined) and fix various bugs found on the way.
5859 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5860 instead. BIO_gethostbyname() does not know what timeouts are
5861 appropriate, so entries would stay in cache even when they have
5863 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5865 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5866 faced with a pathologically small ClientHello fragment that does
5867 not contain client_version: Instead of aborting with an error,
5868 simply choose the highest available protocol version (i.e.,
5869 TLS 1.0 unless it is disabled). In practice, ClientHello
5870 messages are never sent like this, but this change gives us
5871 strictly correct behaviour at least for TLS.
5874 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5875 never resets s->method to s->ctx->method when called from within
5876 one of the SSL handshake functions.
5877 [Bodo Moeller; problem pointed out by Niko Baric]
5879 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5880 (sent using the client's version number) if client_version is
5881 smaller than the protocol version in use. Also change
5882 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5883 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5884 the client will at least see that alert.
5887 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5891 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5892 client receives HelloRequest while in a handshake.
5893 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5895 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5896 should end in 'break', not 'goto end' which circuments various
5897 cleanups done in state SSL_ST_OK. But session related stuff
5898 must be disabled for SSL_ST_OK in the case that we just sent a
5901 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5902 before just sending a HelloRequest.
5903 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5905 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5906 reveal whether illegal block cipher padding was found or a MAC
5907 verification error occured. (Neither SSLerr() codes nor alerts
5908 are directly visible to potential attackers, but the information
5909 may leak via logfiles.)
5911 Similar changes are not required for the SSL 2.0 implementation
5912 because the number of padding bytes is sent in clear for SSL 2.0,
5913 and the extra bytes are just ignored. However ssl/s2_pkt.c
5914 failed to verify that the purported number of padding bytes is in
5918 *) Add OpenUNIX-8 support including shared libraries
5919 (Boyd Lynn Gerber <gerberb@zenez.com>).
5922 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5923 'wristwatch attack' using huge encoding parameters (cf.
5924 James H. Manger's CRYPTO 2001 paper). Note that the
5925 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5926 encoding parameters and hence was not vulnerable.
5929 *) BN_sqr() bug fix.
5930 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5932 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5933 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5934 followed by modular reduction.
5935 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5937 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5938 equivalent based on BN_pseudo_rand() instead of BN_rand().
5941 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5942 This function was broken, as the check for a new client hello message
5943 to handle SGC did not allow these large messages.
5944 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5947 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5950 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5951 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5954 *) Rework the configuration and shared library support for Tru64 Unix.
5955 The configuration part makes use of modern compiler features and
5956 still retains old compiler behavior for those that run older versions
5957 of the OS. The shared library support part includes a variant that
5958 uses the RPATH feature, and is available through the special
5959 configuration target "alpha-cc-rpath", which will never be selected
5961 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5963 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5964 with the same message size as in ssl3_get_certificate_request().
5965 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5966 messages might inadvertently be reject as too long.
5967 [Petr Lampa <lampa@fee.vutbr.cz>]
5969 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5972 *) Modified SSL library such that the verify_callback that has been set
5973 specificly for an SSL object with SSL_set_verify() is actually being
5974 used. Before the change, a verify_callback set with this function was
5975 ignored and the verify_callback() set in the SSL_CTX at the time of
5976 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5977 to allow the necessary settings.
5980 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5981 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5982 done automatically (in contradiction to the requirements of the C
5983 standard). This made problems when used from OpenSSH.
5986 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5987 dh->length and always used
5989 BN_rand_range(priv_key, dh->p).
5991 BN_rand_range() is not necessary for Diffie-Hellman, and this
5992 specific range makes Diffie-Hellman unnecessarily inefficient if
5993 dh->length (recommended exponent length) is much smaller than the
5994 length of dh->p. We could use BN_rand_range() if the order of
5995 the subgroup was stored in the DH structure, but we only have
6000 BN_rand(priv_key, l, ...)
6002 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6008 RSA_eay_public_encrypt
6009 RSA_eay_private_decrypt
6010 RSA_eay_private_encrypt (signing)
6011 RSA_eay_public_decrypt (signature verification)
6013 (default implementations for RSA_public_encrypt,
6014 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6015 always reject numbers >= n.
6018 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6019 to synchronize access to 'locking_thread'. This is necessary on
6020 systems where access to 'locking_thread' (an 'unsigned long'
6021 variable) is not atomic.
6024 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6025 *before* setting the 'crypto_lock_rand' flag. The previous code had
6026 a race condition if 0 is a valid thread ID.
6027 [Travis Vitek <vitek@roguewave.com>]
6029 *) Add support for shared libraries under Irix.
6030 [Albert Chin-A-Young <china@thewrittenword.com>]
6032 *) Add configuration option to build on Linux on both big-endian and
6034 [Ralf Baechle <ralf@uni-koblenz.de>]
6036 *) Add the possibility to create shared libraries on HP-UX.
6039 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6041 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6042 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6043 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6044 PRNG state recovery was possible based on the output of
6045 one PRNG request appropriately sized to gain knowledge on
6046 'md' followed by enough consecutive 1-byte PRNG requests
6047 to traverse all of 'state'.
6049 1. When updating 'md_local' (the current thread's copy of 'md')
6050 during PRNG output generation, hash all of the previous
6051 'md_local' value, not just the half used for PRNG output.
6053 2. Make the number of bytes from 'state' included into the hash
6054 independent from the number of PRNG bytes requested.
6056 The first measure alone would be sufficient to avoid
6057 Markku-Juhani's attack. (Actually it had never occurred
6058 to me that the half of 'md_local' used for chaining was the
6059 half from which PRNG output bytes were taken -- I had always
6060 assumed that the secret half would be used.) The second
6061 measure makes sure that additional data from 'state' is never
6062 mixed into 'md_local' in small portions; this heuristically
6063 further strengthens the PRNG.
6066 *) Fix crypto/bn/asm/mips3.s.
6069 *) When only the key is given to "enc", the IV is undefined. Print out
6070 an error message in this case.
6073 *) Handle special case when X509_NAME is empty in X509 printing routines.
6076 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6077 positive and less than q.
6080 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6081 used: it isn't thread safe and the add_lock_callback should handle
6083 [Paul Rose <Paul.Rose@bridge.com>]
6085 *) Verify that incoming data obeys the block size in
6086 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6090 [Ulf Möller, Bodo Möller]
6092 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6093 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6094 when fixing the server behaviour for backwards-compatible 'client
6095 hello' messages. (Note that the attack is impractical against
6096 SSL 3.0 and TLS 1.0 anyway because length and version checking
6097 means that the probability of guessing a valid ciphertext is
6098 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6101 Before 0.9.5, the countermeasure (hide the error by generating a
6102 random 'decryption result') did not work properly because
6103 ERR_clear_error() was missing, meaning that SSL_get_error() would
6104 detect the supposedly ignored error.
6106 Both problems are now fixed.
6109 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6110 (previously it was 1024).
6113 *) Fix for compatibility mode trust settings: ignore trust settings
6114 unless some valid trust or reject settings are present.
6117 *) Fix for blowfish EVP: its a variable length cipher.
6120 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6121 parameters in DSA public key structures and return an error in the
6122 DSA routines if parameters are absent.
6125 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6126 in the current directory if neither $RANDFILE nor $HOME was set.
6127 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6128 caused some confusion to Windows users who haven't defined $HOME.
6129 Thus RAND_file_name() is changed again: e_os.h can define a
6130 DEFAULT_HOME, which will be used if $HOME is not set.
6131 For Windows, we use "C:"; on other platforms, we still require
6132 environment variables.
6134 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6135 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6136 having multiple threads call RAND_poll() concurrently.
6139 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6140 combination of a flag and a thread ID variable.
6141 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6142 flag), *other* threads can enter ssleay_add_bytes without obeying
6143 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6144 that they do not hold after the first thread unsets add_do_not_lock).
6147 *) Change bctest again: '-x' expressions are not available in all
6151 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6153 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6154 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6156 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6157 the default extension for executables, if any. Also, make the perl
6158 scripts that use symlink() to test if it really exists and use "cp"
6159 if it doesn't. All this made OpenSSL compilable and installable in
6163 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6164 If SEQUENCE is length is indefinite just set c->slen to the total
6165 amount of data available.
6166 [Steve Henson, reported by shige@FreeBSD.org]
6167 [This change does not apply to 0.9.7.]
6169 *) Change bctest to avoid here-documents inside command substitution
6170 (workaround for FreeBSD /bin/sh bug).
6171 For compatibility with Ultrix, avoid shell functions (introduced
6172 in the bctest version that searches along $PATH).
6175 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6176 with des_encrypt() defined on some operating systems, like Solaris
6180 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6181 On the Importance of Eliminating Errors in Cryptographic
6182 Computations, J. Cryptology 14 (2001) 2, 101-119,
6183 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6186 *) MIPS assembler BIGNUM division bug fix.
6189 *) Disabled incorrect Alpha assembler code.
6192 *) Fix PKCS#7 decode routines so they correctly update the length
6193 after reading an EOC for the EXPLICIT tag.
6195 [This change does not apply to 0.9.7.]
6197 *) Fix bug in PKCS#12 key generation routines. This was triggered
6198 if a 3DES key was generated with a 0 initial byte. Include
6199 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6200 (but broken) behaviour.
6203 *) Enhance bctest to search for a working bc along $PATH and print
6205 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6207 *) Fix memory leaks in err.c: free err_data string if necessary;
6208 don't write to the wrong index in ERR_set_error_data.
6211 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6215 *) Replace rdtsc with _emit statements for VC++ version 5.
6216 [Jeremy Cooper <jeremy@baymoo.org>]
6218 *) Make it possible to reuse SSLv2 sessions.
6221 *) In copy_email() check for >= 0 as a return value for
6222 X509_NAME_get_index_by_NID() since 0 is a valid index.
6223 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6225 *) Avoid coredump with unsupported or invalid public keys by checking if
6226 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6227 PKCS7_verify() fails with non detached data.
6230 *) Don't use getenv in library functions when run as setuid/setgid.
6231 New function OPENSSL_issetugid().
6234 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6235 due to incorrect handling of multi-threading:
6237 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6239 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6241 3. Count how many times MemCheck_off() has been called so that
6242 nested use can be treated correctly. This also avoids
6243 inband-signalling in the previous code (which relied on the
6244 assumption that thread ID 0 is impossible).
6247 *) Add "-rand" option also to s_client and s_server.
6250 *) Fix CPU detection on Irix 6.x.
6251 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6252 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6254 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6257 [This change does not apply to 0.9.7.]
6259 *) Use the cached encoding of an X509_NAME structure rather than
6260 copying it. This is apparently the reason for the libsafe "errors"
6261 but the code is actually correct.
6264 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6265 Bleichenbacher's DSA attack.
6266 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6267 to be set and top=0 forces the highest bit to be set; top=-1 is new
6268 and leaves the highest bit random.
6269 [Ulf Moeller, Bodo Moeller]
6271 *) In the NCONF_...-based implementations for CONF_... queries
6272 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6273 a temporary CONF structure with the data component set to NULL
6274 (which gives segmentation faults in lh_retrieve).
6275 Instead, use NULL for the CONF pointer in CONF_get_string and
6276 CONF_get_number (which may use environment variables) and directly
6277 return NULL from CONF_get_section.
6280 *) Fix potential buffer overrun for EBCDIC.
6283 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6284 keyUsage if basicConstraints absent for a CA.
6287 *) Make SMIME_write_PKCS7() write mail header values with a format that
6288 is more generally accepted (no spaces before the semicolon), since
6289 some programs can't parse those values properly otherwise. Also make
6290 sure BIO's that break lines after each write do not create invalid
6294 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6295 macros previously used would not encode an empty SEQUENCE OF
6296 and break the signature.
6298 [This change does not apply to 0.9.7.]
6300 *) Zero the premaster secret after deriving the master secret in
6304 *) Add some EVP_add_digest_alias registrations (as found in
6305 OpenSSL_add_all_digests()) to SSL_library_init()
6306 aka OpenSSL_add_ssl_algorithms(). This provides improved
6307 compatibility with peers using X.509 certificates
6308 with unconventional AlgorithmIdentifier OIDs.
6311 *) Fix for Irix with NO_ASM.
6312 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6314 *) ./config script fixes.
6315 [Ulf Moeller, Richard Levitte]
6317 *) Fix 'openssl passwd -1'.
6320 *) Change PKCS12_key_gen_asc() so it can cope with non null
6321 terminated strings whose length is passed in the passlen
6322 parameter, for example from PEM callbacks. This was done
6323 by adding an extra length parameter to asc2uni().
6324 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6326 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6327 call failed, free the DSA structure.
6330 *) Fix to uni2asc() to cope with zero length Unicode strings.
6331 These are present in some PKCS#12 files.
6334 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6335 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6336 when writing a 32767 byte record.
6337 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6339 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6340 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6342 (RSA objects have a reference count access to which is protected
6343 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6344 so they are meant to be shared between threads.)
6345 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6346 "Reddie, Steven" <Steven.Reddie@ca.com>]
6348 *) Fix a deadlock in CRYPTO_mem_leaks().
6351 *) Use better test patterns in bntest.
6354 *) rand_win.c fix for Borland C.
6357 *) BN_rshift bugfix for n == 0.
6360 *) Add a 'bctest' script that checks for some known 'bc' bugs
6361 so that 'make test' does not abort just because 'bc' is broken.
6364 *) Store verify_result within SSL_SESSION also for client side to
6365 avoid potential security hole. (Re-used sessions on the client side
6366 always resulted in verify_result==X509_V_OK, not using the original
6367 result of the server certificate verification.)
6370 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6371 SSL3_RT_APPLICATION_DATA, return 0.
6372 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6376 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6377 releases, have been re-implemented by renaming the previous
6378 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6379 and ssl3_read_internal, respectively, and adding 'peek' parameters
6380 to them. The new ssl[23]_{read,peek} functions are calls to
6381 ssl[23]_read_internal with the 'peek' flag set appropriately.
6382 A 'peek' parameter has also been added to ssl3_read_bytes, which
6383 does the actual work for ssl3_read_internal.
6386 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6387 the method-specific "init()" handler. Also clean up ex_data after
6388 calling the method-specific "finish()" handler. Previously, this was
6389 happening the other way round.
6392 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6393 The previous value, 12, was not always sufficient for BN_mod_exp().
6396 *) Make sure that shared libraries get the internal name engine with
6397 the full version number and not just 0. This should mark the
6398 shared libraries as not backward compatible. Of course, this should
6399 be changed again when we can guarantee backward binary compatibility.
6402 *) Fix typo in get_cert_by_subject() in by_dir.c
6403 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6405 *) Rework the system to generate shared libraries:
6407 - Make note of the expected extension for the shared libraries and
6408 if there is a need for symbolic links from for example libcrypto.so.0
6409 to libcrypto.so.0.9.7. There is extended info in Configure for
6412 - Make as few rebuilds of the shared libraries as possible.
6414 - Still avoid linking the OpenSSL programs with the shared libraries.
6416 - When installing, install the shared libraries separately from the
6420 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6422 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6423 and not in SSL_clear because the latter is also used by the
6424 accept/connect functions; previously, the settings made by
6425 SSL_set_read_ahead would be lost during the handshake.
6426 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6428 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6429 Previously, it would create entries for disableed algorithms no
6433 *) Added several new manual pages for SSL_* function.
6436 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6438 *) In ssl23_get_client_hello, generate an error message when faced
6439 with an initial SSL 3.0/TLS record that is too small to contain the
6440 first two bytes of the ClientHello message, i.e. client_version.
6441 (Note that this is a pathologic case that probably has never happened
6442 in real life.) The previous approach was to use the version number
6443 from the record header as a substitute; but our protocol choice
6444 should not depend on that one because it is not authenticated
6445 by the Finished messages.
6448 *) More robust randomness gathering functions for Windows.
6449 [Jeffrey Altman <jaltman@columbia.edu>]
6451 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6452 not set then we don't setup the error code for issuer check errors
6453 to avoid possibly overwriting other errors which the callback does
6454 handle. If an application does set the flag then we assume it knows
6455 what it is doing and can handle the new informational codes
6459 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6460 a general "ANY" type, as such it should be able to decode anything
6461 including tagged types. However it didn't check the class so it would
6462 wrongly interpret tagged types in the same way as their universal
6463 counterpart and unknown types were just rejected. Changed so that the
6464 tagged and unknown types are handled in the same way as a SEQUENCE:
6465 that is the encoding is stored intact. There is also a new type
6466 "V_ASN1_OTHER" which is used when the class is not universal, in this
6467 case we have no idea what the actual type is so we just lump them all
6471 *) On VMS, stdout may very well lead to a file that is written to
6472 in a record-oriented fashion. That means that every write() will
6473 write a separate record, which will be read separately by the
6474 programs trying to read from it. This can be very confusing.
6476 The solution is to put a BIO filter in the way that will buffer
6477 text until a linefeed is reached, and then write everything a
6478 line at a time, so every record written will be an actual line,
6479 not chunks of lines and not (usually doesn't happen, but I've
6480 seen it once) several lines in one record. BIO_f_linebuffer() is
6483 Currently, it's a VMS-only method, because that's where it has
6484 been tested well enough.
6487 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6488 it can return incorrect results.
6489 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6490 but it was in 0.9.6-beta[12].)
6493 *) Disable the check for content being present when verifying detached
6494 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6495 include zero length content when signing messages.
6498 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6499 BIO_ctrl (for BIO pairs).
6502 *) Add DSO method for VMS.
6505 *) Bug fix: Montgomery multiplication could produce results with the
6509 *) Add RPM specification openssl.spec and modify it to build three
6510 packages. The default package contains applications, application
6511 documentation and run-time libraries. The devel package contains
6512 include files, static libraries and function documentation. The
6513 doc package contains the contents of the doc directory. The original
6514 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6517 *) Add a large number of documentation files for many SSL routines.
6518 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6520 *) Add a configuration entry for Sony News 4.
6521 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6523 *) Don't set the two most significant bits to one when generating a
6524 random number < q in the DSA library.
6527 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6528 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6529 the underlying transport is blocking) if a handshake took place.
6530 (The default behaviour is needed by applications such as s_client
6531 and s_server that use select() to determine when to use SSL_read;
6532 but for applications that know in advance when to expect data, it
6533 just makes things more complicated.)
6536 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6540 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6541 work better on such systems.
6542 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6544 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6545 Update PKCS12_parse() so it copies the friendlyName and the
6546 keyid to the certificates aux info.
6549 *) Fix bug in PKCS7_verify() which caused an infinite loop
6550 if there was more than one signature.
6551 [Sven Uszpelkat <su@celocom.de>]
6553 *) Major change in util/mkdef.pl to include extra information
6554 about each symbol, as well as presentig variables as well
6555 as functions. This change means that there's n more need
6556 to rebuild the .num files when some algorithms are excluded.
6559 *) Allow the verify time to be set by an application,
6560 rather than always using the current time.
6563 *) Phase 2 verify code reorganisation. The certificate
6564 verify code now looks up an issuer certificate by a
6565 number of criteria: subject name, authority key id
6566 and key usage. It also verifies self signed certificates
6567 by the same criteria. The main comparison function is
6568 X509_check_issued() which performs these checks.
6570 Lot of changes were necessary in order to support this
6571 without completely rewriting the lookup code.
6573 Authority and subject key identifier are now cached.
6575 The LHASH 'certs' is X509_STORE has now been replaced
6576 by a STACK_OF(X509_OBJECT). This is mainly because an
6577 LHASH can't store or retrieve multiple objects with
6578 the same hash value.
6580 As a result various functions (which were all internal
6581 use only) have changed to handle the new X509_STORE
6582 structure. This will break anything that messed round
6583 with X509_STORE internally.
6585 The functions X509_STORE_add_cert() now checks for an
6586 exact match, rather than just subject name.
6588 The X509_STORE API doesn't directly support the retrieval
6589 of multiple certificates matching a given criteria, however
6590 this can be worked round by performing a lookup first
6591 (which will fill the cache with candidate certificates)
6592 and then examining the cache for matches. This is probably
6593 the best we can do without throwing out X509_LOOKUP
6594 entirely (maybe later...).
6596 The X509_VERIFY_CTX structure has been enhanced considerably.
6598 All certificate lookup operations now go via a get_issuer()
6599 callback. Although this currently uses an X509_STORE it
6600 can be replaced by custom lookups. This is a simple way
6601 to bypass the X509_STORE hackery necessary to make this
6602 work and makes it possible to use more efficient techniques
6603 in future. A very simple version which uses a simple
6604 STACK for its trusted certificate store is also provided
6605 using X509_STORE_CTX_trusted_stack().
6607 The verify_cb() and verify() callbacks now have equivalents
6608 in the X509_STORE_CTX structure.
6610 X509_STORE_CTX also has a 'flags' field which can be used
6611 to customise the verify behaviour.
6614 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6615 excludes S/MIME capabilities.
6618 *) When a certificate request is read in keep a copy of the
6619 original encoding of the signed data and use it when outputing
6620 again. Signatures then use the original encoding rather than
6621 a decoded, encoded version which may cause problems if the
6622 request is improperly encoded.
6625 *) For consistency with other BIO_puts implementations, call
6626 buffer_write(b, ...) directly in buffer_puts instead of calling
6629 In BIO_puts, increment b->num_write as in BIO_write.
6630 [Peter.Sylvester@EdelWeb.fr]
6632 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6633 BN_zero, we may not return a BIGNUM with an array consisting of
6637 *) Avoid calling abort() from within the library when problems are
6638 detected, except if preprocessor symbols have been defined
6639 (such as REF_CHECK, BN_DEBUG etc.).
6642 *) New openssl application 'rsautl'. This utility can be
6643 used for low level RSA operations. DER public key
6644 BIO/fp routines also added.
6647 *) New Configure entry and patches for compiling on QNX 4.
6648 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6650 *) A demo state-machine implementation was sponsored by
6651 Nuron (http://www.nuron.com/) and is now available in
6652 demos/state_machine.
6655 *) New options added to the 'dgst' utility for signature
6656 generation and verification.
6659 *) Unrecognized PKCS#7 content types are now handled via a
6660 catch all ASN1_TYPE structure. This allows unsupported
6661 types to be stored as a "blob" and an application can
6662 encode and decode it manually.
6665 *) Fix various signed/unsigned issues to make a_strex.c
6667 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6669 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6670 length if passed a buffer. ASN1_INTEGER_to_BN failed
6671 if passed a NULL BN and its argument was negative.
6672 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6674 *) Modification to PKCS#7 encoding routines to output definite
6675 length encoding. Since currently the whole structures are in
6676 memory there's not real point in using indefinite length
6677 constructed encoding. However if OpenSSL is compiled with
6678 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6681 *) Added BIO_vprintf() and BIO_vsnprintf().
6684 *) Added more prefixes to parse for in the the strings written
6685 through a logging bio, to cover all the levels that are available
6686 through syslog. The prefixes are now:
6688 PANIC, EMERG, EMR => LOG_EMERG
6689 ALERT, ALR => LOG_ALERT
6690 CRIT, CRI => LOG_CRIT
6691 ERROR, ERR => LOG_ERR
6692 WARNING, WARN, WAR => LOG_WARNING
6693 NOTICE, NOTE, NOT => LOG_NOTICE
6694 INFO, INF => LOG_INFO
6695 DEBUG, DBG => LOG_DEBUG
6697 and as before, if none of those prefixes are present at the
6698 beginning of the string, LOG_ERR is chosen.
6700 On Win32, the LOG_* levels are mapped according to this:
6702 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6703 LOG_WARNING => EVENTLOG_WARNING_TYPE
6704 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6708 *) Made it possible to reconfigure with just the configuration
6709 argument "reconf" or "reconfigure". The command line arguments
6710 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6711 and are retrieved from there when reconfiguring.
6715 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6717 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6720 *) The obj_dat.pl script was messing up the sorting of object
6721 names. The reason was that it compared the quoted version
6722 of strings as a result "OCSP" > "OCSP Signing" because
6723 " > SPACE. Changed script to store unquoted versions of
6724 names and add quotes on output. It was also omitting some
6725 names from the lookup table if they were given a default
6726 value (that is if SN is missing it is given the same
6727 value as LN and vice versa), these are now added on the
6728 grounds that if an object has a name we should be able to
6729 look it up. Finally added warning output when duplicate
6730 short or long names are found.
6733 *) Changes needed for Tandem NSK.
6734 [Scott Uroff <scott@xypro.com>]
6736 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6737 RSA_padding_check_SSLv23(), special padding was never detected
6738 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6739 version rollback attacks was not effective.
6741 In s23_clnt.c, don't use special rollback-attack detection padding
6742 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6743 client; similarly, in s23_srvr.c, don't do the rollback check if
6744 SSL 2.0 is the only protocol enabled in the server.
6747 *) Make it possible to get hexdumps of unprintable data with 'openssl
6748 asn1parse'. By implication, the functions ASN1_parse_dump() and
6749 BIO_dump_indent() are added.
6752 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6753 these print out strings and name structures based on various
6754 flags including RFC2253 support and proper handling of
6755 multibyte characters. Added options to the 'x509' utility
6756 to allow the various flags to be set.
6759 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6760 Also change the functions X509_cmp_current_time() and
6761 X509_gmtime_adj() work with an ASN1_TIME structure,
6762 this will enable certificates using GeneralizedTime in validity
6763 dates to be checked.
6766 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6767 negative public key encodings) on by default,
6768 NO_NEG_PUBKEY_BUG can be set to disable it.
6771 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6772 content octets. An i2c_ASN1_OBJECT is unnecessary because
6773 the encoding can be trivially obtained from the structure.
6776 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6777 not read locks (CRYPTO_r_[un]lock).
6780 *) A first attempt at creating official support for shared
6781 libraries through configuration. I've kept it so the
6782 default is static libraries only, and the OpenSSL programs
6783 are always statically linked for now, but there are
6784 preparations for dynamic linking in place.
6785 This has been tested on Linux and Tru64.
6788 *) Randomness polling function for Win9x, as described in:
6789 Peter Gutmann, Software Generation of Practically Strong
6793 *) Fix so PRNG is seeded in req if using an already existing
6797 *) New options to smime application. -inform and -outform
6798 allow alternative formats for the S/MIME message including
6799 PEM and DER. The -content option allows the content to be
6800 specified separately. This should allow things like Netscape
6801 form signing output easier to verify.
6804 *) Fix the ASN1 encoding of tags using the 'long form'.
6807 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6808 STRING types. These convert content octets to and from the
6809 underlying type. The actual tag and length octets are
6810 already assumed to have been read in and checked. These
6811 are needed because all other string types have virtually
6812 identical handling apart from the tag. By having versions
6813 of the ASN1 functions that just operate on content octets
6814 IMPLICIT tagging can be handled properly. It also allows
6815 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6816 and ASN1_INTEGER are identical apart from the tag.
6819 *) Change the handling of OID objects as follows:
6821 - New object identifiers are inserted in objects.txt, following
6822 the syntax given in objects.README.
6823 - objects.pl is used to process obj_mac.num and create a new
6825 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6828 This is currently kind of a hack, and the perl code in objects.pl
6829 isn't very elegant, but it works as I intended. The simplest way
6830 to check that it worked correctly is to look in obj_dat.h and
6831 check the array nid_objs and make sure the objects haven't moved
6832 around (this is important!). Additions are OK, as well as
6833 consistent name changes.
6836 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6839 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6840 The given file adds to whatever has already been seeded into the
6841 random pool through the RANDFILE configuration file option or
6842 environment variable, or the default random state file.
6845 *) mkstack.pl now sorts each macro group into lexical order.
6846 Previously the output order depended on the order the files
6847 appeared in the directory, resulting in needless rewriting
6851 *) Patches to make OpenSSL compile under Win32 again. Mostly
6852 work arounds for the VC++ problem that it treats func() as
6853 func(void). Also stripped out the parts of mkdef.pl that
6854 added extra typesafe functions: these no longer exist.
6857 *) Reorganisation of the stack code. The macros are now all
6858 collected in safestack.h . Each macro is defined in terms of
6859 a "stack macro" of the form SKM_<name>(type, a, b). The
6860 DEBUG_SAFESTACK is now handled in terms of function casts,
6861 this has the advantage of retaining type safety without the
6862 use of additional functions. If DEBUG_SAFESTACK is not defined
6863 then the non typesafe macros are used instead. Also modified the
6864 mkstack.pl script to handle the new form. Needs testing to see
6865 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6866 the default if no major problems. Similar behaviour for ASN1_SET_OF
6867 and PKCS12_STACK_OF.
6870 *) When some versions of IIS use the 'NET' form of private key the
6871 key derivation algorithm is different. Normally MD5(password) is
6872 used as a 128 bit RC4 key. In the modified case
6873 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6874 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6875 as the old Netscape_RSA functions except they have an additional
6876 'sgckey' parameter which uses the modified algorithm. Also added
6877 an -sgckey command line option to the rsa utility. Thanks to
6878 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6879 algorithm to openssl-dev.
6882 *) The evp_local.h macros were using 'c.##kname' which resulted in
6883 invalid expansion on some systems (SCO 5.0.5 for example).
6884 Corrected to 'c.kname'.
6885 [Phillip Porch <root@theporch.com>]
6887 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6888 a STACK of email addresses from a certificate or request, these look
6889 in the subject name and the subject alternative name extensions and
6890 omit any duplicate addresses.
6893 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6894 This makes DSA verification about 2 % faster.
6897 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6898 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6899 plus overhead for 1024 bit moduli).
6900 This makes exponentiations about 0.5 % faster for 1024 bit
6901 exponents (as measured by "openssl speed rsa2048").
6904 *) Rename memory handling macros to avoid conflicts with other
6906 Malloc => OPENSSL_malloc
6907 Malloc_locked => OPENSSL_malloc_locked
6908 Realloc => OPENSSL_realloc
6909 Free => OPENSSL_free
6912 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6913 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6916 *) CygWin32 support.
6917 [John Jarvie <jjarvie@newsguy.com>]
6919 *) The type-safe stack code has been rejigged. It is now only compiled
6920 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6921 by default all type-specific stack functions are "#define"d back to
6922 standard stack functions. This results in more streamlined output
6923 but retains the type-safety checking possibilities of the original
6927 *) The STACK code has been cleaned up, and certain type declarations
6928 that didn't make a lot of sense have been brought in line. This has
6929 also involved a cleanup of sorts in safestack.h to more correctly
6930 map type-safe stack functions onto their plain stack counterparts.
6931 This work has also resulted in a variety of "const"ifications of
6932 lots of the code, especially "_cmp" operations which should normally
6933 be prototyped with "const" parameters anyway.
6936 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6937 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6938 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6939 where all of 'md' is used each time the PRNG is used, but 'state'
6940 is used only indexed by a cyclic counter. As entropy may not be
6941 well distributed from the beginning, 'md' is important as a
6942 chaining variable. However, the output function chains only half
6943 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6944 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6945 in all of 'state' being rewritten, with the new values depending
6946 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6949 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6950 the handshake is continued after ssl_verify_cert_chain();
6951 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6952 can lead to 'unexplainable' connection aborts later.
6953 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6955 *) Major EVP API cipher revision.
6956 Add hooks for extra EVP features. This allows various cipher
6957 parameters to be set in the EVP interface. Support added for variable
6958 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6959 setting of RC2 and RC5 parameters.
6961 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6964 Remove lots of duplicated code from the EVP library. For example *every*
6965 cipher init() function handles the 'iv' in the same way according to the
6966 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6967 for CFB and OFB modes they zero ctx->num.
6969 New functionality allows removal of S/MIME code RC2 hack.
6971 Most of the routines have the same form and so can be declared in terms
6974 By shifting this to the top level EVP_CipherInit() it can be removed from
6975 all individual ciphers. If the cipher wants to handle IVs or keys
6976 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6979 Change lots of functions like EVP_EncryptUpdate() to now return a
6980 value: although software versions of the algorithms cannot fail
6981 any installed hardware versions can.
6984 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6985 this option is set, tolerate broken clients that send the negotiated
6986 protocol version number instead of the requested protocol version
6990 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6991 i.e. non-zero for export ciphersuites, zero otherwise.
6992 Previous versions had this flag inverted, inconsistent with
6993 rsa_tmp_cb (..._TMP_RSA_CB).
6994 [Bodo Moeller; problem reported by Amit Chopra]
6996 *) Add missing DSA library text string. Work around for some IIS
6997 key files with invalid SEQUENCE encoding.
7000 *) Add a document (doc/standards.txt) that list all kinds of standards
7001 and so on that are implemented in OpenSSL.
7004 *) Enhance c_rehash script. Old version would mishandle certificates
7005 with the same subject name hash and wouldn't handle CRLs at all.
7006 Added -fingerprint option to crl utility, to support new c_rehash
7010 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7013 *) Fix for SSL server purpose checking. Server checking was
7014 rejecting certificates which had extended key usage present
7015 but no ssl client purpose.
7016 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7018 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7019 is a little unclear about how a blank password is handled.
7020 Since the password in encoded as a BMPString with terminating
7021 double NULL a zero length password would end up as just the
7022 double NULL. However no password at all is different and is
7023 handled differently in the PKCS#12 key generation code. NS
7024 treats a blank password as zero length. MSIE treats it as no
7025 password on export: but it will try both on import. We now do
7026 the same: PKCS12_parse() tries zero length and no password if
7027 the password is set to "" or NULL (NULL is now a valid password:
7028 it wasn't before) as does the pkcs12 application.
7031 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7032 perror when PEM_read_bio_X509_REQ fails, the error message must
7033 be obtained from the error queue.
7036 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7037 it in ERR_remove_state if appropriate, and change ERR_get_state
7038 accordingly to avoid race conditions (this is necessary because
7039 thread_hash is no longer constant once set).
7042 *) Bugfix for linux-elf makefile.one.
7045 *) RSA_get_default_method() will now cause a default
7046 RSA_METHOD to be chosen if one doesn't exist already.
7047 Previously this was only set during a call to RSA_new()
7048 or RSA_new_method(NULL) meaning it was possible for
7049 RSA_get_default_method() to return NULL.
7052 *) Added native name translation to the existing DSO code
7053 that will convert (if the flag to do so is set) filenames
7054 that are sufficiently small and have no path information
7055 into a canonical native form. Eg. "blah" converted to
7056 "libblah.so" or "blah.dll" etc.
7059 *) New function ERR_error_string_n(e, buf, len) which is like
7060 ERR_error_string(e, buf), but writes at most 'len' bytes
7061 including the 0 terminator. For ERR_error_string_n, 'buf'
7063 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7065 *) CONF library reworked to become more general. A new CONF
7066 configuration file reader "class" is implemented as well as a
7067 new functions (NCONF_*, for "New CONF") to handle it. The now
7068 old CONF_* functions are still there, but are reimplemented to
7069 work in terms of the new functions. Also, a set of functions
7070 to handle the internal storage of the configuration data is
7071 provided to make it easier to write new configuration file
7072 reader "classes" (I can definitely see something reading a
7073 configuration file in XML format, for example), called _CONF_*,
7074 or "the configuration storage API"...
7076 The new configuration file reading functions are:
7078 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7079 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7081 NCONF_default, NCONF_WIN32
7083 NCONF_dump_fp, NCONF_dump_bio
7085 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7086 NCONF_new creates a new CONF object. This works in the same way
7087 as other interfaces in OpenSSL, like the BIO interface.
7088 NCONF_dump_* dump the internal storage of the configuration file,
7089 which is useful for debugging. All other functions take the same
7090 arguments as the old CONF_* functions wth the exception of the
7091 first that must be a `CONF *' instead of a `LHASH *'.
7093 To make it easer to use the new classes with the old CONF_* functions,
7094 the function CONF_set_default_method is provided.
7097 *) Add '-tls1' option to 'openssl ciphers', which was already
7098 mentioned in the documentation but had not been implemented.
7099 (This option is not yet really useful because even the additional
7100 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7103 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7104 OpenSSL-based applications) load shared libraries and bind to
7105 them in a portable way.
7106 [Geoff Thorpe, with contributions from Richard Levitte]
7108 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7110 *) Make sure _lrotl and _lrotr are only used with MSVC.
7112 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7113 (the default implementation of RAND_status).
7115 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7116 to '-clrext' (= clear extensions), as intended and documented.
7117 [Bodo Moeller; inconsistency pointed out by Michael Attili
7120 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7121 was larger than the MD block size.
7122 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7124 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7125 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7126 using the passed key: if the passed key was a private key the result
7127 of X509_print(), for example, would be to print out all the private key
7131 *) des_quad_cksum() byte order bug fix.
7132 [Ulf Möller, using the problem description in krb4-0.9.7, where
7133 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7135 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7137 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7139 *) For easily testing in shell scripts whether some command
7140 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7141 returns with exit code 0 iff no command of the given name is available.
7142 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7143 the output goes to stdout and nothing is printed to stderr.
7144 Additional arguments are always ignored.
7146 Since for each cipher there is a command of the same name,
7147 the 'no-cipher' compilation switches can be tested this way.
7149 ('openssl no-XXX' is not able to detect pseudo-commands such
7150 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7153 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7156 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7157 is set; it will be thrown away anyway because each handshake creates
7159 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7160 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7161 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7162 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7165 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7166 'Q' and 'R' lose their special meanings (quit/renegotiate).
7167 This is part of what -quiet does; unlike -quiet, -ign_eof
7168 does not suppress any output.
7171 *) Add compatibility options to the purpose and trust code. The
7172 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7173 accepts a certificate or CA, this was the previous behaviour,
7174 with all the associated security issues.
7176 X509_TRUST_COMPAT is the old trust behaviour: only and
7177 automatically trust self signed roots in certificate store. A
7178 new trust setting X509_TRUST_DEFAULT is used to specify that
7179 a purpose has no associated trust setting and it should instead
7180 use the value in the default purpose.
7183 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7184 and fix a memory leak.
7187 *) In util/mkerr.pl (which implements 'make errors'), preserve
7188 reason strings from the previous version of the .c file, as
7189 the default to have only downcase letters (and digits) in
7190 automatically generated reasons codes is not always appropriate.
7193 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7194 using strerror. Previously, ERR_reason_error_string() returned
7195 library names as reason strings for SYSerr; but SYSerr is a special
7196 case where small numbers are errno values, not library numbers.
7199 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7200 converts DSA parameters into DH parameters. (When creating parameters,
7201 DSA_generate_parameters is used.)
7204 *) Include 'length' (recommended exponent length) in C code generated
7205 by 'openssl dhparam -C'.
7208 *) The second argument to set_label in perlasm was already being used
7209 so couldn't be used as a "file scope" flag. Moved to third argument
7213 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7214 instead of RAND_bytes for encryption IVs and salts.
7217 *) Include RAND_status() into RAND_METHOD instead of implementing
7218 it only for md_rand.c Otherwise replacing the PRNG by calling
7219 RAND_set_rand_method would be impossible.
7222 *) Don't let DSA_generate_key() enter an infinite loop if the random
7223 number generation fails.
7226 *) New 'rand' application for creating pseudo-random output.
7229 *) Added configuration support for Linux/IA64
7230 [Rolf Haberrecker <rolf@suse.de>]
7232 *) Assembler module support for Mingw32.
7235 *) Shared library support for HPUX (in shlib/).
7236 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7238 *) Shared library support for Solaris gcc.
7239 [Lutz Behnke <behnke@trustcenter.de>]
7241 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7243 *) PKCS7_encrypt() was adding text MIME headers twice because they
7244 were added manually and by SMIME_crlf_copy().
7247 *) In bntest.c don't call BN_rand with zero bits argument.
7248 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7250 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7251 case was implemented. This caused BN_div_recp() to fail occasionally.
7254 *) Add an optional second argument to the set_label() in the perl
7255 assembly language builder. If this argument exists and is set
7256 to 1 it signals that the assembler should use a symbol whose
7257 scope is the entire file, not just the current function. This
7258 is needed with MASM which uses the format label:: for this scope.
7259 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7261 *) Change the ASN1 types so they are typedefs by default. Before
7262 almost all types were #define'd to ASN1_STRING which was causing
7263 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7267 *) Change names of new functions to the new get1/get0 naming
7268 convention: After 'get1', the caller owns a reference count
7269 and has to call ..._free; 'get0' returns a pointer to some
7270 data structure without incrementing reference counters.
7271 (Some of the existing 'get' functions increment a reference
7272 counter, some don't.)
7273 Similarly, 'set1' and 'add1' functions increase reference
7274 counters or duplicate objects.
7277 *) Allow for the possibility of temp RSA key generation failure:
7278 the code used to assume it always worked and crashed on failure.
7281 *) Fix potential buffer overrun problem in BIO_printf().
7282 [Ulf Möller, using public domain code by Patrick Powell; problem
7283 pointed out by David Sacerdote <das33@cornell.edu>]
7285 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7286 RAND_egd() and RAND_status(). In the command line application,
7287 the EGD socket can be specified like a seed file using RANDFILE
7291 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7292 Some CAs (e.g. Verisign) distribute certificates in this form.
7295 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7296 list to exclude them. This means that no special compilation option
7297 is needed to use anonymous DH: it just needs to be included in the
7301 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7302 EVP_MD_type. The old functionality is available in a new macro called
7303 EVP_MD_md(). Change code that uses it and update docs.
7306 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7307 where the 'void *' argument is replaced by a function pointer argument.
7308 Previously 'void *' was abused to point to functions, which works on
7309 many platforms, but is not correct. As these functions are usually
7310 called by macros defined in OpenSSL header files, most source code
7311 should work without changes.
7314 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7315 sections with information on -D... compiler switches used for
7316 compiling the library so that applications can see them. To enable
7317 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7318 must be defined. E.g.,
7319 #define OPENSSL_ALGORITHM_DEFINES
7320 #include <openssl/opensslconf.h>
7321 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7322 [Richard Levitte, Ulf and Bodo Möller]
7324 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7328 *) Change the 'other' type in certificate aux info to a STACK_OF
7329 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7330 the required ASN1 format: arbitrary types determined by an OID.
7333 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7334 argument to 'req'. This is not because the function is newer or
7335 better than others it just uses the work 'NEW' in the certificate
7336 request header lines. Some software needs this.
7339 *) Reorganise password command line arguments: now passwords can be
7340 obtained from various sources. Delete the PEM_cb function and make
7341 it the default behaviour: i.e. if the callback is NULL and the
7342 usrdata argument is not NULL interpret it as a null terminated pass
7343 phrase. If usrdata and the callback are NULL then the pass phrase
7344 is prompted for as usual.
7347 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7348 the support is automatically enabled. The resulting binaries will
7349 autodetect the card and use it if present.
7350 [Ben Laurie and Compaq Inc.]
7352 *) Work around for Netscape hang bug. This sends certificate request
7353 and server done in one record. Since this is perfectly legal in the
7354 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7355 the bugs/SSLv3 entry for more info.
7358 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7361 *) Add -rand argument to smime and pkcs12 applications and read/write
7365 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7368 *) Add command line password options to the remaining applications.
7371 *) Bug fix for BN_div_recp() for numerators with an even number of
7375 *) More tests in bntest.c, and changed test_bn output.
7378 *) ./config recognizes MacOS X now.
7381 *) Bug fix for BN_div() when the first words of num and divsor are
7382 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7385 *) Add support for various broken PKCS#8 formats, and command line
7386 options to produce them.
7389 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7390 get temporary BIGNUMs from a BN_CTX.
7393 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7397 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7398 include a #define from the old name to the new. The original intent
7399 was that statically linked binaries could for example just call
7400 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7401 link with digests. This never worked becayse SSLeay_add_all_digests()
7402 and SSLeay_add_all_ciphers() were in the same source file so calling
7403 one would link with the other. They are now in separate source files.
7406 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7409 *) Use a less unusual form of the Miller-Rabin primality test (it used
7410 a binary algorithm for exponentiation integrated into the Miller-Rabin
7411 loop, our standard modexp algorithms are faster).
7414 *) Support for the EBCDIC character set completed.
7415 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7417 *) Source code cleanups: use const where appropriate, eliminate casts,
7418 use void * instead of char * in lhash.
7421 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7422 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7423 this the server could overwrite ephemeral keys that the client
7427 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7428 using 50 iterations of the Rabin-Miller test.
7430 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7431 iterations of the Rabin-Miller test as required by the appendix
7432 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7433 As BN_is_prime_fasttest includes trial division, DSA parameter
7434 generation becomes much faster.
7436 This implies a change for the callback functions in DSA_is_prime
7437 and DSA_generate_parameters: The callback function is called once
7438 for each positive witness in the Rabin-Miller test, not just
7439 occasionally in the inner loop; and the parameters to the
7440 callback function now provide an iteration count for the outer
7441 loop rather than for the current invocation of the inner loop.
7442 DSA_generate_parameters additionally can call the callback
7443 function with an 'iteration count' of -1, meaning that a
7444 candidate has passed the trial division test (when q is generated
7445 from an application-provided seed, trial division is skipped).
7448 *) New function BN_is_prime_fasttest that optionally does trial
7449 division before starting the Rabin-Miller test and has
7450 an additional BN_CTX * argument (whereas BN_is_prime always
7451 has to allocate at least one BN_CTX).
7452 'callback(1, -1, cb_arg)' is called when a number has passed the
7453 trial division stage.
7456 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7460 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7463 *) New function BN_pseudo_rand().
7466 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7467 bignum version of BN_from_montgomery() with the working code from
7468 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7472 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7473 made it impossible to use the same SSL_SESSION data structure in
7474 SSL2 clients in multiple threads.
7477 *) The return value of RAND_load_file() no longer counts bytes obtained
7478 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7479 to seed the PRNG (previously an explicit byte count was required).
7480 [Ulf Möller, Bodo Möller]
7482 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7483 used (char *) instead of (void *) and had casts all over the place.
7486 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7489 *) Retain source code compatibility for BN_prime_checks macro:
7490 BN_is_prime(..., BN_prime_checks, ...) now uses
7491 BN_prime_checks_for_size to determine the appropriate number of
7492 Rabin-Miller iterations.
7495 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7496 DH_CHECK_P_NOT_SAFE_PRIME.
7497 (Check if this is true? OpenPGP calls them "strong".)
7500 *) Merge the functionality of "dh" and "gendh" programs into a new program
7501 "dhparam". The old programs are retained for now but will handle DH keys
7502 (instead of parameters) in future.
7505 *) Make the ciphers, s_server and s_client programs check the return values
7506 when a new cipher list is set.
7509 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7510 ciphers. Before when the 56bit ciphers were enabled the sorting was
7513 The syntax for the cipher sorting has been extended to support sorting by
7514 cipher-strength (using the strength_bits hard coded in the tables).
7515 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7517 Fix a bug in the cipher-command parser: when supplying a cipher command
7518 string with an "undefined" symbol (neither command nor alphanumeric
7519 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7520 an error is flagged.
7522 Due to the strength-sorting extension, the code of the
7523 ssl_create_cipher_list() function was completely rearranged. I hope that
7524 the readability was also increased :-)
7525 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7527 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7528 for the first serial number and places 2 in the serial number file. This
7529 avoids problems when the root CA is created with serial number zero and
7530 the first user certificate has the same issuer name and serial number
7534 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7535 the new code. Add documentation for this stuff.
7538 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7539 X509_*() to X509at_*() on the grounds that they don't handle X509
7540 structures and behave in an analagous way to the X509v3 functions:
7541 they shouldn't be called directly but wrapper functions should be used
7544 So we also now have some wrapper functions that call the X509at functions
7545 when passed certificate requests. (TO DO: similar things can be done with
7546 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7547 things. Some of these need some d2i or i2d and print functionality
7548 because they handle more complex structures.)
7551 *) Add missing #ifndefs that caused missing symbols when building libssl
7552 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7553 NO_RSA in ssl/s2*.c.
7554 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7556 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7557 has a return value which indicates the quality of the random data
7558 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7559 error queue. New function RAND_pseudo_bytes() generates output that is
7560 guaranteed to be unique but not unpredictable. RAND_add is like
7561 RAND_seed, but takes an extra argument for an entropy estimate
7562 (RAND_seed always assumes full entropy).
7565 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7566 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7567 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7568 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7569 false-positive rate of at most 2^-80 for random input.
7572 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7575 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7576 in the 0.9.5 release), this returns the chain
7577 from an X509_CTX structure with a dup of the stack and all
7578 the X509 reference counts upped: so the stack will exist
7579 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7582 Also make SSL_SESSION_print() print out the verify return
7586 *) Add manpage for the pkcs12 command. Also change the default
7587 behaviour so MAC iteration counts are used unless the new
7588 -nomaciter option is used. This improves file security and
7589 only older versions of MSIE (4.0 for example) need it.
7592 *) Honor the no-xxx Configure options when creating .DEF files.
7595 *) Add PKCS#10 attributes to field table: challengePassword,
7596 unstructuredName and unstructuredAddress. These are taken from
7597 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7598 international characters are used.
7600 More changes to X509_ATTRIBUTE code: allow the setting of types
7601 based on strings. Remove the 'loc' parameter when adding
7602 attributes because these will be a SET OF encoding which is sorted
7606 *) Initial changes to the 'req' utility to allow request generation
7607 automation. This will allow an application to just generate a template
7608 file containing all the field values and have req construct the
7611 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7612 used all over the place including certificate requests and PKCS#7
7613 structures. They are currently handled manually where necessary with
7614 some primitive wrappers for PKCS#7. The new functions behave in a
7615 manner analogous to the X509 extension functions: they allow
7616 attributes to be looked up by NID and added.
7618 Later something similar to the X509V3 code would be desirable to
7619 automatically handle the encoding, decoding and printing of the
7620 more complex types. The string types like challengePassword can
7621 be handled by the string table functions.
7623 Also modified the multi byte string table handling. Now there is
7624 a 'global mask' which masks out certain types. The table itself
7625 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7626 is useful when for example there is only one permissible type
7627 (as in countryName) and using the mask might result in no valid
7631 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7632 SSL_get_peer_finished to allow applications to obtain the latest
7633 Finished messages sent to the peer or expected from the peer,
7634 respectively. (SSL_get_peer_finished is usually the Finished message
7635 actually received from the peer, otherwise the protocol will be aborted.)
7637 As the Finished message are message digests of the complete handshake
7638 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7639 be used for external authentication procedures when the authentication
7640 provided by SSL/TLS is not desired or is not enough.
7643 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7644 the host supports BWX extension and if Compaq C is present on the
7645 $PATH. Just exploiting of the BWX extension results in 20-30%
7646 performance kick for some algorithms, e.g. DES and RC4 to mention
7647 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7651 *) Add support for MS "fast SGC". This is arguably a violation of the
7652 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7653 weak crypto and after checking the certificate is SGC a second one
7654 with strong crypto. MS SGC stops the first handshake after receiving
7655 the server certificate message and sends a second client hello. Since
7656 a server will typically do all the time consuming operations before
7657 expecting any further messages from the client (server key exchange
7658 is the most expensive) there is little difference between the two.
7660 To get OpenSSL to support MS SGC we have to permit a second client
7661 hello message after we have sent server done. In addition we have to
7662 reset the MAC if we do get this second client hello.
7665 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7666 if a DER encoded private key is RSA or DSA traditional format. Changed
7667 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7668 format DER encoded private key. Newer code should use PKCS#8 format which
7669 has the key type encoded in the ASN1 structure. Added DER private key
7670 support to pkcs8 application.
7673 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7674 ciphersuites has been selected (as required by the SSL 3/TLS 1
7675 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7676 is set, we interpret this as a request to violate the specification
7677 (the worst that can happen is a handshake failure, and 'correct'
7678 behaviour would result in a handshake failure anyway).
7681 *) In SSL_CTX_add_session, take into account that there might be multiple
7682 SSL_SESSION structures with the same session ID (e.g. when two threads
7683 concurrently obtain them from an external cache).
7684 The internal cache can handle only one SSL_SESSION with a given ID,
7685 so if there's a conflict, we now throw out the old one to achieve
7689 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7690 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7691 some routines that use cipher OIDs: some ciphers do not have OIDs
7692 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7696 *) Simplify the trust setting structure and code. Now we just have
7697 two sequences of OIDs for trusted and rejected settings. These will
7698 typically have values the same as the extended key usage extension
7699 and any application specific purposes.
7701 The trust checking code now has a default behaviour: it will just
7702 check for an object with the same NID as the passed id. Functions can
7703 be provided to override either the default behaviour or the behaviour
7704 for a given id. SSL client, server and email already have functions
7705 in place for compatibility: they check the NID and also return "trusted"
7706 if the certificate is self signed.
7709 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7710 traditional format into an EVP_PKEY structure.
7713 *) Add a password callback function PEM_cb() which either prompts for
7714 a password if usr_data is NULL or otherwise assumes it is a null
7715 terminated password. Allow passwords to be passed on command line
7716 environment or config files in a few more utilities.
7719 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7720 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7721 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7722 Update documentation.
7725 *) Support for ASN1 "NULL" type. This could be handled before by using
7726 ASN1_TYPE but there wasn't any function that would try to read a NULL
7727 and produce an error if it couldn't. For compatibility we also have
7728 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7729 don't allocate anything because they don't need to.
7732 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7734 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7736 *) Rebuild of the memory allocation routines used by OpenSSL code and
7737 possibly others as well. The purpose is to make an interface that
7738 provide hooks so anyone can build a separate set of allocation and
7739 deallocation routines to be used by OpenSSL, for example memory
7740 pool implementations, or something else, which was previously hard
7741 since Malloc(), Realloc() and Free() were defined as macros having
7742 the values malloc, realloc and free, respectively (except for Win32
7743 compilations). The same is provided for memory debugging code.
7744 OpenSSL already comes with functionality to find memory leaks, but
7745 this gives people a chance to debug other memory problems.
7747 With these changes, a new set of functions and macros have appeared:
7749 CRYPTO_set_mem_debug_functions() [F]
7750 CRYPTO_get_mem_debug_functions() [F]
7751 CRYPTO_dbg_set_options() [F]
7752 CRYPTO_dbg_get_options() [F]
7753 CRYPTO_malloc_debug_init() [M]
7755 The memory debug functions are NULL by default, unless the library
7756 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7757 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7758 gives the standard debugging functions that come with OpenSSL) or
7759 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7760 provided by the library user) must be used. When the standard
7761 debugging functions are used, CRYPTO_dbg_set_options can be used to
7762 request additional information:
7763 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7764 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7766 Also, things like CRYPTO_set_mem_functions will always give the
7767 expected result (the new set of functions is used for allocation
7768 and deallocation) at all times, regardless of platform and compiler
7771 To finish it up, some functions that were never use in any other
7772 way than through macros have a new API and new semantic:
7775 CRYPTO_dbg_realloc()
7778 All macros of value have retained their old syntax.
7779 [Richard Levitte and Bodo Moeller]
7781 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7782 ordering of SMIMECapabilities wasn't in "strength order" and there
7783 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7787 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7788 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7789 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7791 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7792 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7793 functionality to handle multipart/signed properly) and a utility
7794 called 'smime' to call all this stuff. This is based on code I
7795 originally wrote for Celo who have kindly allowed it to be
7796 included in OpenSSL.
7799 *) Add variants des_set_key_checked and des_set_key_unchecked of
7800 des_set_key (aka des_key_sched). Global variable des_check_key
7801 decides which of these is called by des_set_key; this way
7802 des_check_key behaves as it always did, but applications and
7803 the library itself, which was buggy for des_check_key == 1,
7804 have a cleaner way to pick the version they need.
7807 *) New function PKCS12_newpass() which changes the password of a
7811 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7812 dynamic mix. In both cases the ids can be used as an index into the
7813 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7814 functions so they accept a list of the field values and the
7815 application doesn't need to directly manipulate the X509_TRUST
7819 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7823 *) Modify the way the V3 extension code looks up extensions. This now
7824 works in a similar way to the object code: we have some "standard"
7825 extensions in a static table which is searched with OBJ_bsearch()
7826 and the application can add dynamic ones if needed. The file
7827 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7828 updated whenever a new extension is added to the core code and kept
7829 in ext_nid order. There is a simple program 'tabtest.c' which checks
7830 this. New extensions are not added too often so this file can readily
7831 be maintained manually.
7833 There are two big advantages in doing things this way. The extensions
7834 can be looked up immediately and no longer need to be "added" using
7835 X509V3_add_standard_extensions(): this function now does nothing.
7836 [Side note: I get *lots* of email saying the extension code doesn't
7837 work because people forget to call this function]
7838 Also no dynamic allocation is done unless new extensions are added:
7839 so if we don't add custom extensions there is no need to call
7840 X509V3_EXT_cleanup().
7843 *) Modify enc utility's salting as follows: make salting the default. Add a
7844 magic header, so unsalted files fail gracefully instead of just decrypting
7845 to garbage. This is because not salting is a big security hole, so people
7846 should be discouraged from doing it.
7849 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7850 digest to be passed on the command line but it only used this
7851 parameter when signing a certificate. Modified so all relevant
7852 operations are affected by the digest parameter including the
7853 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7854 DSA key was used because it didn't fix the digest.
7857 *) Initial certificate chain verify code. Currently tests the untrusted
7858 certificates for consistency with the verify purpose (which is set
7859 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7861 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7862 this is because it will reject chains with invalid extensions whereas
7863 every previous version of OpenSSL and SSLeay made no checks at all.
7865 Trust code: checks the root CA for the relevant trust settings. Trust
7866 settings have an initial value consistent with the verify purpose: e.g.
7867 if the verify purpose is for SSL client use it expects the CA to be
7868 trusted for SSL client use. However the default value can be changed to
7869 permit custom trust settings: one example of this would be to only trust
7870 certificates from a specific "secure" set of CAs.
7872 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7873 which should be used for version portability: especially since the
7874 verify structure is likely to change more often now.
7876 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7877 to set them. If not set then assume SSL clients will verify SSL servers
7880 Two new options to the verify program: -untrusted allows a set of
7881 untrusted certificates to be passed in and -purpose which sets the
7882 intended purpose of the certificate. If a purpose is set then the
7883 new chain verify code is used to check extension consistency.
7886 *) Support for the authority information access extension.
7889 *) Modify RSA and DSA PEM read routines to transparently handle
7890 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7891 public keys in a format compatible with certificate
7892 SubjectPublicKeyInfo structures. Unfortunately there were already
7893 functions called *_PublicKey_* which used various odd formats so
7894 these are retained for compatibility: however the DSA variants were
7895 never in a public release so they have been deleted. Changed dsa/rsa
7896 utilities to handle the new format: note no releases ever handled public
7897 keys so we should be OK.
7899 The primary motivation for this change is to avoid the same fiasco
7900 that dogs private keys: there are several incompatible private key
7901 formats some of which are standard and some OpenSSL specific and
7902 require various evil hacks to allow partial transparent handling and
7903 even then it doesn't work with DER formats. Given the option anything
7904 other than PKCS#8 should be dumped: but the other formats have to
7905 stay in the name of compatibility.
7907 With public keys and the benefit of hindsight one standard format
7908 is used which works with EVP_PKEY, RSA or DSA structures: though
7909 it clearly returns an error if you try to read the wrong kind of key.
7911 Added a -pubkey option to the 'x509' utility to output the public key.
7912 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7913 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7914 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7915 that do the same as the EVP_PKEY_assign_*() except they up the
7916 reference count of the added key (they don't "swallow" the
7920 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7921 CRLs would fail if the file contained no certificates or no CRLs:
7922 added a new function to read in both types and return the number
7923 read: this means that if none are read it will be an error. The
7924 DER versions of the certificate and CRL reader would always fail
7925 because it isn't possible to mix certificates and CRLs in DER format
7926 without choking one or the other routine. Changed this to just read
7927 a certificate: this is the best we can do. Also modified the code
7928 in apps/verify.c to take notice of return codes: it was previously
7929 attempting to read in certificates from NULL pointers and ignoring
7930 any errors: this is one reason why the cert and CRL reader seemed
7931 to work. It doesn't check return codes from the default certificate
7932 routines: these may well fail if the certificates aren't installed.
7935 *) Code to support otherName option in GeneralName.
7938 *) First update to verify code. Change the verify utility
7939 so it warns if it is passed a self signed certificate:
7940 for consistency with the normal behaviour. X509_verify
7941 has been modified to it will now verify a self signed
7942 certificate if *exactly* the same certificate appears
7943 in the store: it was previously impossible to trust a
7944 single self signed certificate. This means that:
7945 openssl verify ss.pem
7946 now gives a warning about a self signed certificate but
7947 openssl verify -CAfile ss.pem ss.pem
7951 *) For servers, store verify_result in SSL_SESSION data structure
7952 (and add it to external session representation).
7953 This is needed when client certificate verifications fails,
7954 but an application-provided verification callback (set by
7955 SSL_CTX_set_cert_verify_callback) allows accepting the session
7956 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7957 but returns 1): When the session is reused, we have to set
7958 ssl->verify_result to the appropriate error code to avoid
7960 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7962 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7963 case in PKCS7_dataInit() where the signed PKCS7 structure
7964 didn't contain any existing data because it was being created.
7965 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7967 *) Add a salt to the key derivation routines in enc.c. This
7968 forms the first 8 bytes of the encrypted file. Also add a
7969 -S option to allow a salt to be input on the command line.
7972 *) New function X509_cmp(). Oddly enough there wasn't a function
7973 to compare two certificates. We do this by working out the SHA1
7974 hash and comparing that. X509_cmp() will be needed by the trust
7978 *) SSL_get1_session() is like SSL_get_session(), but increments
7979 the reference count in the SSL_SESSION returned.
7980 [Geoff Thorpe <geoff@eu.c2.net>]
7982 *) Fix for 'req': it was adding a null to request attributes.
7983 Also change the X509_LOOKUP and X509_INFO code to handle
7984 certificate auxiliary information.
7987 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7991 *) Add the possibility to add extra information to the memory leak
7992 detecting output, to form tracebacks, showing from where each
7993 allocation was originated: CRYPTO_push_info("constant string") adds
7994 the string plus current file name and line number to a per-thread
7995 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7996 is like calling CYRPTO_pop_info() until the stack is empty.
7997 Also updated memory leak detection code to be multi-thread-safe.
8000 *) Add options -text and -noout to pkcs7 utility and delete the
8001 encryption options which never did anything. Update docs.
8004 *) Add options to some of the utilities to allow the pass phrase
8005 to be included on either the command line (not recommended on
8006 OSes like Unix) or read from the environment. Update the
8007 manpages and fix a few bugs.
8010 *) Add a few manpages for some of the openssl commands.
8013 *) Fix the -revoke option in ca. It was freeing up memory twice,
8014 leaking and not finding already revoked certificates.
8017 *) Extensive changes to support certificate auxiliary information.
8018 This involves the use of X509_CERT_AUX structure and X509_AUX
8019 functions. An X509_AUX function such as PEM_read_X509_AUX()
8020 can still read in a certificate file in the usual way but it
8021 will also read in any additional "auxiliary information". By
8022 doing things this way a fair degree of compatibility can be
8023 retained: existing certificates can have this information added
8024 using the new 'x509' options.
8026 Current auxiliary information includes an "alias" and some trust
8027 settings. The trust settings will ultimately be used in enhanced
8028 certificate chain verification routines: currently a certificate
8029 can only be trusted if it is self signed and then it is trusted
8033 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8034 The problem was that one of the replacement routines had not been working
8035 since SSLeay releases. For now the offending routine has been replaced
8036 with non-optimised assembler. Even so, this now gives around 95%
8037 performance improvement for 1024 bit RSA signs.
8040 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8041 handling. Most clients have the effective key size in bits equal to
8042 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8043 A few however don't do this and instead use the size of the decrypted key
8044 to determine the RC2 key length and the AlgorithmIdentifier to determine
8045 the effective key length. In this case the effective key length can still
8046 be 40 bits but the key length can be 168 bits for example. This is fixed
8047 by manually forcing an RC2 key into the EVP_PKEY structure because the
8048 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8049 the key length and effective key length are equal.
8052 *) Add a bunch of functions that should simplify the creation of
8053 X509_NAME structures. Now you should be able to do:
8054 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8055 and have it automatically work out the correct field type and fill in
8056 the structures. The more adventurous can try:
8057 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8058 and it will (hopefully) work out the correct multibyte encoding.
8061 *) Change the 'req' utility to use the new field handling and multibyte
8062 copy routines. Before the DN field creation was handled in an ad hoc
8063 way in req, ca, and x509 which was rather broken and didn't support
8064 BMPStrings or UTF8Strings. Since some software doesn't implement
8065 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8066 using the dirstring_type option. See the new comment in the default
8067 openssl.cnf for more info.
8070 *) Make crypto/rand/md_rand.c more robust:
8071 - Assure unique random numbers after fork().
8072 - Make sure that concurrent threads access the global counter and
8073 md serializably so that we never lose entropy in them
8074 or use exactly the same state in multiple threads.
8075 Access to the large state is not always serializable because
8076 the additional locking could be a performance killer, and
8077 md should be large enough anyway.
8080 *) New file apps/app_rand.c with commonly needed functionality
8081 for handling the random seed file.
8083 Use the random seed file in some applications that previously did not:
8085 dsaparam -genkey (which also ignored its '-rand' option),
8088 x509 (when signing).
8089 Except on systems with /dev/urandom, it is crucial to have a random
8090 seed file at least for key creation, DSA signing, and for DH exchanges;
8091 for RSA signatures we could do without one.
8093 gendh and gendsa (unlike genrsa) used to read only the first byte
8094 of each file listed in the '-rand' option. The function as previously
8095 found in genrsa is now in app_rand.c and is used by all programs
8096 that support '-rand'.
8099 *) In RAND_write_file, use mode 0600 for creating files;
8100 don't just chmod when it may be too late.
8103 *) Report an error from X509_STORE_load_locations
8104 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8107 *) New function ASN1_mbstring_copy() this copies a string in either
8108 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8109 into an ASN1_STRING type. A mask of permissible types is passed
8110 and it chooses the "minimal" type to use or an error if not type
8114 *) Add function equivalents to the various macros in asn1.h. The old
8115 macros are retained with an M_ prefix. Code inside the library can
8116 use the M_ macros. External code (including the openssl utility)
8117 should *NOT* in order to be "shared library friendly".
8120 *) Add various functions that can check a certificate's extensions
8121 to see if it usable for various purposes such as SSL client,
8122 server or S/MIME and CAs of these types. This is currently
8123 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8124 verification. Also added a -purpose flag to x509 utility to
8125 print out all the purposes.
8128 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8132 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8133 for, obtain and decode and extension and obtain its critical flag.
8134 This allows all the necessary extension code to be handled in a
8135 single function call.
8138 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8139 platforms. See crypto/rc4/rc4_enc.c for further details.
8142 *) New -noout option to asn1parse. This causes no output to be produced
8143 its main use is when combined with -strparse and -out to extract data
8144 from a file (which may not be in ASN.1 format).
8147 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8148 when producing the local key id.
8149 [Richard Levitte <levitte@stacken.kth.se>]
8151 *) New option -dhparam in s_server. This allows a DH parameter file to be
8152 stated explicitly. If it is not stated then it tries the first server
8153 certificate file. The previous behaviour hard coded the filename
8157 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8158 a public key to be input or output. For example:
8159 openssl rsa -in key.pem -pubout -out pubkey.pem
8160 Also added necessary DSA public key functions to handle this.
8163 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8164 in the message. This was handled by allowing
8165 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8166 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8168 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8169 to the end of the strings whereas this didn't. This would cause problems
8170 if strings read with d2i_ASN1_bytes() were later modified.
8171 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8173 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8174 data and it contains EOF it will end up returning an error. This is
8175 caused by input 46 bytes long. The cause is due to the way base64
8176 BIOs find the start of base64 encoded data. They do this by trying a
8177 trial decode on each line until they find one that works. When they
8178 do a flag is set and it starts again knowing it can pass all the
8179 data directly through the decoder. Unfortunately it doesn't reset
8180 the context it uses. This means that if EOF is reached an attempt
8181 is made to pass two EOFs through the context and this causes the
8182 resulting error. This can also cause other problems as well. As is
8183 usual with these problems it takes *ages* to find and the fix is
8184 trivial: move one line.
8185 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8187 *) Ugly workaround to get s_client and s_server working under Windows. The
8188 old code wouldn't work because it needed to select() on sockets and the
8189 tty (for keypresses and to see if data could be written). Win32 only
8190 supports select() on sockets so we select() with a 1s timeout on the
8191 sockets and then see if any characters are waiting to be read, if none
8192 are present then we retry, we also assume we can always write data to
8193 the tty. This isn't nice because the code then blocks until we've
8194 received a complete line of data and it is effectively polling the
8195 keyboard at 1s intervals: however it's quite a bit better than not
8196 working at all :-) A dedicated Windows application might handle this
8197 with an event loop for example.
8200 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8201 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8202 will be called when RSA_sign() and RSA_verify() are used. This is useful
8203 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8204 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8205 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8206 This necessitated the support of an extra signature type NID_md5_sha1
8207 for SSL signatures and modifications to the SSL library to use it instead
8208 of calling RSA_public_decrypt() and RSA_private_encrypt().
8211 *) Add new -verify -CAfile and -CApath options to the crl program, these
8212 will lookup a CRL issuers certificate and verify the signature in a
8213 similar way to the verify program. Tidy up the crl program so it
8214 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8215 less strict. It will now permit CRL extensions even if it is not
8216 a V2 CRL: this will allow it to tolerate some broken CRLs.
8219 *) Initialize all non-automatic variables each time one of the openssl
8220 sub-programs is started (this is necessary as they may be started
8221 multiple times from the "OpenSSL>" prompt).
8222 [Lennart Bang, Bodo Moeller]
8224 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8225 removing all other RSA functionality (this is what NO_RSA does). This
8226 is so (for example) those in the US can disable those operations covered
8227 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8231 *) Non-copying interface to BIO pairs.
8232 (still largely untested)
8235 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8236 ASCII string. This was handled independently in various places before.
8239 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8240 UTF8 strings a character at a time.
8243 *) Use client_version from client hello to select the protocol
8244 (s23_srvr.c) and for RSA client key exchange verification
8245 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8248 *) Add various utility functions to handle SPKACs, these were previously
8249 handled by poking round in the structure internals. Added new function
8250 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8251 print, verify and generate SPKACs. Based on an original idea from
8252 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8255 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8258 *) Allow the config file extension section to be overwritten on the
8259 command line. Based on an original idea from Massimiliano Pala
8260 <madwolf@comune.modena.it>. The new option is called -extensions
8261 and can be applied to ca, req and x509. Also -reqexts to override
8262 the request extensions in req and -crlexts to override the crl extensions
8266 *) Add new feature to the SPKAC handling in ca. Now you can include
8267 the same field multiple times by preceding it by "XXXX." for example:
8270 this is the same syntax as used in the req config file.
8273 *) Allow certificate extensions to be added to certificate requests. These
8274 are specified in a 'req_extensions' option of the req section of the
8275 config file. They can be printed out with the -text option to req but
8276 are otherwise ignored at present.
8279 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8280 data read consists of only the final block it would not decrypted because
8281 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8282 A misplaced 'break' also meant the decrypted final block might not be
8283 copied until the next read.
8286 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8287 a few extra parameters to the DH structure: these will be useful if
8288 for example we want the value of 'q' or implement X9.42 DH.
8291 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8292 provides hooks that allow the default DSA functions or functions on a
8293 "per key" basis to be replaced. This allows hardware acceleration and
8294 hardware key storage to be handled without major modification to the
8295 library. Also added low level modexp hooks and CRYPTO_EX structure and
8296 associated functions.
8299 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8300 as "read only": it can't be written to and the buffer it points to will
8301 not be freed. Reading from a read only BIO is much more efficient than
8302 a normal memory BIO. This was added because there are several times when
8303 an area of memory needs to be read from a BIO. The previous method was
8304 to create a memory BIO and write the data to it, this results in two
8305 copies of the data and an O(n^2) reading algorithm. There is a new
8306 function BIO_new_mem_buf() which creates a read only memory BIO from
8307 an area of memory. Also modified the PKCS#7 routines to use read only
8311 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8312 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8313 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8314 but a retry condition occured while trying to read the rest.
8317 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8318 NID_pkcs7_encrypted by default: this was wrong since this should almost
8319 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8320 the encrypted data type: this is a more sensible place to put it and it
8321 allows the PKCS#12 code to be tidied up that duplicated this
8325 *) Changed obj_dat.pl script so it takes its input and output files on
8326 the command line. This should avoid shell escape redirection problems
8330 *) Initial support for certificate extension requests, these are included
8331 in things like Xenroll certificate requests. Included functions to allow
8332 extensions to be obtained and added.
8335 *) -crlf option to s_client and s_server for sending newlines as
8336 CRLF (as required by many protocols).
8339 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8341 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8342 [Ralf S. Engelschall]
8344 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8345 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8347 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8351 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8352 DH parameters/keys (q is lost during that conversion, but the resulting
8353 DH parameters contain its length).
8355 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8356 much faster than DH_generate_parameters (which creates parameters
8357 where p = 2*q + 1), and also the smaller q makes DH computations
8358 much more efficient (160-bit exponentiation instead of 1024-bit
8359 exponentiation); so this provides a convenient way to support DHE
8360 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8361 utter importance to use
8362 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8364 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8365 when such DH parameters are used, because otherwise small subgroup
8366 attacks may become possible!
8369 *) Avoid memory leak in i2d_DHparams.
8372 *) Allow the -k option to be used more than once in the enc program:
8373 this allows the same encrypted message to be read by multiple recipients.
8376 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8377 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8378 it will always use the numerical form of the OID, even if it has a short
8382 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8383 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8384 otherwise bn_mod_exp was called. In the case of hardware keys for example
8385 no private key components need be present and it might store extra data
8386 in the RSA structure, which cannot be accessed from bn_mod_exp.
8387 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8388 private key operations.
8391 *) Added support for SPARC Linux.
8394 *) pem_password_cb function type incompatibly changed from
8395 typedef int pem_password_cb(char *buf, int size, int rwflag);
8397 ....(char *buf, int size, int rwflag, void *userdata);
8398 so that applications can pass data to their callbacks:
8399 The PEM[_ASN1]_{read,write}... functions and macros now take an
8400 additional void * argument, which is just handed through whenever
8401 the password callback is called.
8402 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8404 New function SSL_CTX_set_default_passwd_cb_userdata.
8406 Compatibility note: As many C implementations push function arguments
8407 onto the stack in reverse order, the new library version is likely to
8408 interoperate with programs that have been compiled with the old
8409 pem_password_cb definition (PEM_whatever takes some data that
8410 happens to be on the stack as its last argument, and the callback
8411 just ignores this garbage); but there is no guarantee whatsoever that
8414 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8415 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8416 problems not only on Windows, but also on some Unix platforms.
8417 To avoid problematic command lines, these definitions are now in an
8418 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8419 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8422 *) MIPS III/IV assembler module is reimplemented.
8425 *) More DES library cleanups: remove references to srand/rand and
8426 delete an unused file.
8429 *) Add support for the the free Netwide assembler (NASM) under Win32,
8430 since not many people have MASM (ml) and it can be hard to obtain.
8431 This is currently experimental but it seems to work OK and pass all
8432 the tests. Check out INSTALL.W32 for info.
8435 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8436 without temporary keys kept an extra copy of the server key,
8437 and connections with temporary keys did not free everything in case
8441 *) New function RSA_check_key and new openssl rsa option -check
8442 for verifying the consistency of RSA keys.
8443 [Ulf Moeller, Bodo Moeller]
8445 *) Various changes to make Win32 compile work:
8446 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8447 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8448 comparison" warnings.
8449 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8452 *) Add a debugging option to PKCS#5 v2 key generation function: when
8453 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8454 derived keys are printed to stderr.
8457 *) Copy the flags in ASN1_STRING_dup().
8458 [Roman E. Pavlov <pre@mo.msk.ru>]
8460 *) The x509 application mishandled signing requests containing DSA
8461 keys when the signing key was also DSA and the parameters didn't match.
8463 It was supposed to omit the parameters when they matched the signing key:
8464 the verifying software was then supposed to automatically use the CA's
8465 parameters if they were absent from the end user certificate.
8467 Omitting parameters is no longer recommended. The test was also
8468 the wrong way round! This was probably due to unusual behaviour in
8469 EVP_cmp_parameters() which returns 1 if the parameters match.
8470 This meant that parameters were omitted when they *didn't* match and
8471 the certificate was useless. Certificates signed with 'ca' didn't have
8473 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8475 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8476 The interface is as follows:
8477 Applications can use
8478 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8479 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8480 "off" is now the default.
8481 The library internally uses
8482 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8483 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8484 to disable memory-checking temporarily.
8486 Some inconsistent states that previously were possible (and were
8487 even the default) are now avoided.
8489 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8490 with each memory chunk allocated; this is occasionally more helpful
8491 than just having a counter.
8493 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8495 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8499 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8500 which largely parallels "options", but is for changing API behaviour,
8501 whereas "options" are about protocol behaviour.
8502 Initial "mode" flags are:
8504 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8505 a single record has been written.
8506 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8507 retries use the same buffer location.
8508 (But all of the contents must be
8512 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8515 *) Fix problems with no-hmac etc.
8516 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8518 *) New functions RSA_get_default_method(), RSA_set_method() and
8519 RSA_get_method(). These allows replacement of RSA_METHODs without having
8520 to mess around with the internals of an RSA structure.
8523 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8524 Also really enable memory leak checks in openssl.c and in some
8526 [Chad C. Mulligan, Bodo Moeller]
8528 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8529 up the length of negative integers. This has now been simplified to just
8530 store the length when it is first determined and use it later, rather
8531 than trying to keep track of where data is copied and updating it to
8533 [Steve Henson, reported by Brien Wheeler
8534 <bwheeler@authentica-security.com>]
8536 *) Add a new function PKCS7_signatureVerify. This allows the verification
8537 of a PKCS#7 signature but with the signing certificate passed to the
8538 function itself. This contrasts with PKCS7_dataVerify which assumes the
8539 certificate is present in the PKCS#7 structure. This isn't always the
8540 case: certificates can be omitted from a PKCS#7 structure and be
8541 distributed by "out of band" means (such as a certificate database).
8544 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8545 function prototypes in pem.h, also change util/mkdef.pl to add the
8546 necessary function names.
8549 *) mk1mf.pl (used by Windows builds) did not properly read the
8550 options set by Configure in the top level Makefile, and Configure
8551 was not even able to write more than one option correctly.
8552 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8555 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8556 file to be loaded from a BIO or FILE pointer. The BIO version will
8557 for example allow memory BIOs to contain config info.
8560 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8561 Whoever hopes to achieve shared-library compatibility across versions
8562 must use this, not the compile-time macro.
8563 (Exercise 0.9.4: Which is the minimum library version required by
8565 Note: All this applies only to multi-threaded programs, others don't
8569 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8570 through a BIO pair triggered the default case, i.e.
8571 SSLerr(...,SSL_R_UNKNOWN_STATE).
8574 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8575 can use the SSL library even if none of the specific BIOs is
8579 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8580 for the encoded length.
8581 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8583 *) Add initial documentation of the X509V3 functions.
8586 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8587 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8588 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8589 secure PKCS#8 private key format with a high iteration count.
8592 *) Fix determination of Perl interpreter: A perl or perl5
8593 _directory_ in $PATH was also accepted as the interpreter.
8594 [Ralf S. Engelschall]
8596 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8597 wrong with it but it was very old and did things like calling
8598 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8602 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8603 to use the new extension code.
8606 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8607 with macros. This should make it easier to change their form, add extra
8608 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8612 *) Add to configuration table a new entry that can specify an alternative
8613 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8614 according to Mark Crispin <MRC@Panda.COM>.
8618 *) DES CBC did not update the IV. Weird.
8621 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8622 Changing the behaviour of the former might break existing programs --
8623 where IV updating is needed, des_ncbc_encrypt can be used.
8626 *) When bntest is run from "make test" it drives bc to check its
8627 calculations, as well as internally checking them. If an internal check
8628 fails, it needs to cause bc to give a non-zero result or make test carries
8629 on without noticing the failure. Fixed.
8632 *) DES library cleanups.
8635 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8636 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8637 ciphers. NOTE: although the key derivation function has been verified
8638 against some published test vectors it has not been extensively tested
8639 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8643 *) Instead of "mkdir -p", which is not fully portable, use new
8644 Perl script "util/mkdir-p.pl".
8647 *) Rewrite the way password based encryption (PBE) is handled. It used to
8648 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8649 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8650 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8651 the 'parameter' field of the AlgorithmIdentifier is passed to the
8652 underlying key generation function so it must do its own ASN1 parsing.
8653 This has also changed the EVP_PBE_CipherInit() function which now has a
8654 'parameter' argument instead of literal salt and iteration count values
8655 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8658 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8659 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8660 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8661 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8662 value was just used as a "magic string" and not used directly its
8663 value doesn't matter.
8666 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8670 *) "linux-sparc64" configuration (ultrapenguin).
8671 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8672 "linux-sparc" configuration.
8673 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8675 *) config now generates no-xxx options for missing ciphers.
8678 *) Support the EBCDIC character set (work in progress).
8679 File ebcdic.c not yet included because it has a different license.
8680 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8682 *) Support BS2000/OSD-POSIX.
8683 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8685 *) Make callbacks for key generation use void * instead of char *.
8688 *) Make S/MIME samples compile (not yet tested).
8691 *) Additional typesafe stacks.
8694 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8698 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8700 *) New configuration variant "sco5-gcc".
8702 *) Updated some demos.
8703 [Sean O Riordain, Wade Scholine]
8705 *) Add missing BIO_free at exit of pkcs12 application.
8708 *) Fix memory leak in conf.c.
8711 *) Updates for Win32 to assembler version of MD5.
8714 *) Set #! path to perl in apps/der_chop to where we found it
8715 instead of using a fixed path.
8718 *) SHA library changes for irix64-mips4-cc.
8721 *) Improvements for VMS support.
8725 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8727 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8728 This also avoids the problems with SC4.2 and unpatched SC5.
8729 [Andy Polyakov <appro@fy.chalmers.se>]
8731 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8732 These are required because of the typesafe stack would otherwise break
8733 existing code. If old code used a structure member which used to be STACK
8734 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8735 sk_num or sk_value it would produce an error because the num, data members
8736 are not present in STACK_OF. Now it just produces a warning. sk_set
8737 replaces the old method of assigning a value to sk_value
8738 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8739 that does this will no longer work (and should use sk_set instead) but
8740 this could be regarded as a "questionable" behaviour anyway.
8743 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8744 correctly handle encrypted S/MIME data.
8747 *) Change type of various DES function arguments from des_cblock
8748 (which means, in function argument declarations, pointer to char)
8749 to des_cblock * (meaning pointer to array with 8 char elements),
8750 which allows the compiler to do more typechecking; it was like
8751 that back in SSLeay, but with lots of ugly casts.
8753 Introduce new type const_des_cblock.
8756 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8757 problems: find RecipientInfo structure that matches recipient certificate
8758 and initialise the ASN1 structures properly based on passed cipher.
8761 *) Belatedly make the BN tests actually check the results.
8764 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8765 to and from BNs: it was completely broken. New compilation option
8766 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8767 key elements as negative integers.
8770 *) Reorganize and speed up MD5.
8771 [Andy Polyakov <appro@fy.chalmers.se>]
8774 [Richard Levitte <richard@levitte.org>]
8776 *) New option -out to asn1parse to allow the parsed structure to be
8777 output to a file. This is most useful when combined with the -strparse
8778 option to examine the output of things like OCTET STRINGS.
8781 *) Make SSL library a little more fool-proof by not requiring any longer
8782 that SSL_set_{accept,connect}_state be called before
8783 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8784 in many applications because usually everything *appeared* to work as
8785 intended anyway -- now it really works as intended).
8788 *) Move openssl.cnf out of lib/.
8791 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8792 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8793 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8794 [Ralf S. Engelschall]
8796 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8797 handle PKCS#7 enveloped data properly.
8798 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8800 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8801 copying pointers. The cert_st handling is changed by this in
8802 various ways (and thus what used to be known as ctx->default_cert
8803 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8804 any longer when s->cert does not give us what we need).
8805 ssl_cert_instantiate becomes obsolete by this change.
8806 As soon as we've got the new code right (possibly it already is?),
8807 we have solved a couple of bugs of the earlier code where s->cert
8808 was used as if it could not have been shared with other SSL structures.
8810 Note that using the SSL API in certain dirty ways now will result
8811 in different behaviour than observed with earlier library versions:
8812 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8813 does not influence s as it used to.
8815 In order to clean up things more thoroughly, inside SSL_SESSION
8816 we don't use CERT any longer, but a new structure SESS_CERT
8817 that holds per-session data (if available); currently, this is
8818 the peer's certificate chain and, for clients, the server's certificate
8819 and temporary key. CERT holds only those values that can have
8820 meaningful defaults in an SSL_CTX.
8823 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8824 from the internal representation. Various PKCS#7 fixes: remove some
8825 evil casts and set the enc_dig_alg field properly based on the signing
8829 *) Allow PKCS#12 password to be set from the command line or the
8830 environment. Let 'ca' get its config file name from the environment
8831 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8835 *) Allow certificate policies extension to use an IA5STRING for the
8836 organization field. This is contrary to the PKIX definition but
8837 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8841 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8842 without disallowing inline assembler and the like for non-pedantic builds.
8845 *) Support Borland C++ builder.
8846 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8851 *) SHA-1 cleanups and performance enhancements.
8852 [Andy Polyakov <appro@fy.chalmers.se>]
8854 *) Sparc v8plus assembler for the bignum library.
8855 [Andy Polyakov <appro@fy.chalmers.se>]
8857 *) Accept any -xxx and +xxx compiler options in Configure.
8860 *) Update HPUX configuration.
8863 *) Add missing sk_<type>_unshift() function to safestack.h
8864 [Ralf S. Engelschall]
8866 *) New function SSL_CTX_use_certificate_chain_file that sets the
8867 "extra_cert"s in addition to the certificate. (This makes sense
8868 only for "PEM" format files, as chains as a whole are not
8872 *) Support verify_depth from the SSL API.
8873 x509_vfy.c had what can be considered an off-by-one-error:
8874 Its depth (which was not part of the external interface)
8875 was actually counting the number of certificates in a chain;
8876 now it really counts the depth.
8879 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8880 instead of X509err, which often resulted in confusing error
8881 messages since the error codes are not globally unique
8882 (e.g. an alleged error in ssl3_accept when a certificate
8883 didn't match the private key).
8885 *) New function SSL_CTX_set_session_id_context that allows to set a default
8886 value (so that you don't need SSL_set_session_id_context for each
8887 connection using the SSL_CTX).
8890 *) OAEP decoding bug fix.
8893 *) Support INSTALL_PREFIX for package builders, as proposed by
8897 *) New Configure options "threads" and "no-threads". For systems
8898 where the proper compiler options are known (currently Solaris
8899 and Linux), "threads" is the default.
8902 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8905 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8906 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8907 such as /usr/local/bin.
8910 *) "make linux-shared" to build shared libraries.
8911 [Niels Poppe <niels@netbox.org>]
8913 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8916 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8917 extension adding in x509 utility.
8920 *) Remove NOPROTO sections and error code comments.
8923 *) Partial rewrite of the DEF file generator to now parse the ANSI
8927 *) New Configure options --prefix=DIR and --openssldir=DIR.
8930 *) Complete rewrite of the error code script(s). It is all now handled
8931 by one script at the top level which handles error code gathering,
8932 header rewriting and C source file generation. It should be much better
8933 than the old method: it now uses a modified version of Ulf's parser to
8934 read the ANSI prototypes in all header files (thus the old K&R definitions
8935 aren't needed for error creation any more) and do a better job of
8936 translating function codes into names. The old 'ASN1 error code imbedded
8937 in a comment' is no longer necessary and it doesn't use .err files which
8938 have now been deleted. Also the error code call doesn't have to appear all
8939 on one line (which resulted in some large lines...).
8942 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8945 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8946 0 (which usually indicates a closed connection), but continue reading.
8949 *) Fix some race conditions.
8952 *) Add support for CRL distribution points extension. Add Certificate
8953 Policies and CRL distribution points documentation.
8956 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8959 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8960 8 of keying material. Merlin has also confirmed interop with this fix
8961 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8962 [Merlin Hughes <merlin@baltimore.ie>]
8964 *) Fix lots of warnings.
8965 [Richard Levitte <levitte@stacken.kth.se>]
8967 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8968 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8969 [Richard Levitte <levitte@stacken.kth.se>]
8971 *) Fix problems with sizeof(long) == 8.
8972 [Andy Polyakov <appro@fy.chalmers.se>]
8974 *) Change functions to ANSI C.
8977 *) Fix typos in error codes.
8978 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8980 *) Remove defunct assembler files from Configure.
8983 *) SPARC v8 assembler BIGNUM implementation.
8984 [Andy Polyakov <appro@fy.chalmers.se>]
8986 *) Support for Certificate Policies extension: both print and set.
8987 Various additions to support the r2i method this uses.
8990 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8991 return a const string when you are expecting an allocated buffer.
8994 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8995 types DirectoryString and DisplayText.
8998 *) Add code to allow r2i extensions to access the configuration database,
8999 add an LHASH database driver and add several ctx helper functions.
9002 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9003 fail when they extended the size of a BIGNUM.
9006 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9007 support typesafe stack.
9010 *) Fix typo in SSL_[gs]et_options().
9011 [Nils Frostberg <nils@medcom.se>]
9013 *) Delete various functions and files that belonged to the (now obsolete)
9014 old X509V3 handling code.
9017 *) New Configure option "rsaref".
9020 *) Don't auto-generate pem.h.
9023 *) Introduce type-safe ASN.1 SETs.
9026 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9027 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9029 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9030 that links with OpenSSL (well at least cause lots of warnings), but fear
9031 not: the conversion is trivial, and it eliminates loads of evil casts. A
9032 few STACKed things have been converted already. Feel free to convert more.
9033 In the fullness of time, I'll do away with the STACK type altogether.
9036 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9037 specified in <certfile> by updating the entry in the index.txt file.
9038 This way one no longer has to edit the index.txt file manually for
9039 revoking a certificate. The -revoke option does the gory details now.
9040 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9042 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9043 `-text' option at all and this way the `-noout -text' combination was
9044 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9045 [Ralf S. Engelschall]
9047 *) Make sure a corresponding plain text error message exists for the
9048 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9049 verify callback function determined that a certificate was revoked.
9050 [Ralf S. Engelschall]
9052 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9053 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9054 all available cipers including rc5, which was forgotten until now.
9055 In order to let the testing shell script know which algorithms
9056 are available, a new (up to now undocumented) command
9057 "openssl list-cipher-commands" is used.
9060 *) Bugfix: s_client occasionally would sleep in select() when
9061 it should have checked SSL_pending() first.
9064 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9065 the raw DSA values prior to ASN.1 encoding.
9068 *) Tweaks to Configure
9069 [Niels Poppe <niels@netbox.org>]
9071 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9075 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9078 *) New config option to avoid instructions that are illegal on the 80386.
9079 The default code is faster, but requires at least a 486.
9082 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9083 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9084 same as SSL2_VERSION anyway.
9087 *) New "-showcerts" option for s_client.
9090 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9091 application. Various cleanups and fixes.
9094 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9095 modify error routines to work internally. Add error codes and PBE init
9096 to library startup routines.
9099 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9100 packing functions to asn1 and evp. Changed function names and error
9101 codes along the way.
9104 *) PKCS12 integration: and so it begins... First of several patches to
9105 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9106 objects to objects.h
9109 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9110 and display support for Thawte strong extranet extension.
9113 *) Add LinuxPPC support.
9114 [Jeff Dubrule <igor@pobox.org>]
9116 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9117 bn_div_words in alpha.s.
9118 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9120 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9121 OAEP isn't supported when OpenSSL is built with RSAref.
9122 [Ulf Moeller <ulf@fitug.de>]
9124 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9125 so they no longer are missing under -DNOPROTO.
9126 [Soren S. Jorvang <soren@t.dk>]
9129 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9131 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9132 doesn't work when the session is reused. Coming soon!
9135 *) Fix a security hole, that allows sessions to be reused in the wrong
9136 context thus bypassing client cert protection! All software that uses
9137 client certs and session caches in multiple contexts NEEDS PATCHING to
9138 allow session reuse! A fuller solution is in the works.
9139 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9141 *) Some more source tree cleanups (removed obsolete files
9142 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9143 permission on "config" script to be executable) and a fix for the INSTALL
9145 [Ulf Moeller <ulf@fitug.de>]
9147 *) Remove some legacy and erroneous uses of malloc, free instead of
9149 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9151 *) Make rsa_oaep_test return non-zero on error.
9152 [Ulf Moeller <ulf@fitug.de>]
9154 *) Add support for native Solaris shared libraries. Configure
9155 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9156 if someone would make that last step automatic.
9157 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9159 *) ctx_size was not built with the right compiler during "make links". Fixed.
9162 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9163 except NULL ciphers". This means the default cipher list will no longer
9164 enable NULL ciphers. They need to be specifically enabled e.g. with
9165 the string "DEFAULT:eNULL".
9168 *) Fix to RSA private encryption routines: if p < q then it would
9169 occasionally produce an invalid result. This will only happen with
9170 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9173 *) Be less restrictive and allow also `perl util/perlpath.pl
9174 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9175 because this way one can also use an interpreter named `perl5' (which is
9176 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9177 installed as `perl').
9178 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9180 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9181 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9183 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9184 advapi32.lib to Win32 build and change the pem test comparision
9185 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9186 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9187 and crypto/des/ede_cbcm_enc.c.
9190 *) DES quad checksum was broken on big-endian architectures. Fixed.
9193 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9194 Win32 test batch file so it (might) work again. The Win32 test batch file
9195 is horrible: I feel ill....
9198 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9199 in e_os.h. Audit of header files to check ANSI and non ANSI
9200 sections: 10 functions were absent from non ANSI section and not exported
9201 from Windows DLLs. Fixed up libeay.num for new functions.
9204 *) Make `openssl version' output lines consistent.
9205 [Ralf S. Engelschall]
9207 *) Fix Win32 symbol export lists for BIO functions: Added
9208 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9209 to ms/libeay{16,32}.def.
9210 [Ralf S. Engelschall]
9212 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9213 fine under Unix and passes some trivial tests I've now added. But the
9214 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9215 added to make sure no one expects that this stuff really works in the
9216 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9217 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9219 [Ralf S. Engelschall]
9221 *) Fix the generation of two part addresses in perl.
9222 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9224 *) Add config entry for Linux on MIPS.
9225 [John Tobey <jtobey@channel1.com>]
9227 *) Make links whenever Configure is run, unless we are on Windoze.
9230 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9231 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9235 *) Add a useful kludge to allow package maintainers to specify compiler and
9236 other platforms details on the command line without having to patch the
9237 Configure script everytime: One now can use ``perl Configure
9238 <id>:<details>'', i.e. platform ids are allowed to have details appended
9239 to them (seperated by colons). This is treated as there would be a static
9240 pre-configured entry in Configure's %table under key <id> with value
9241 <details> and ``perl Configure <id>'' is called. So, when you want to
9242 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9243 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9244 now, which overrides the FreeBSD-elf entry on-the-fly.
9245 [Ralf S. Engelschall]
9247 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9250 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9251 on the `perl Configure ...' command line. This way one can compile
9252 OpenSSL libraries with Position Independent Code (PIC) which is needed
9253 for linking it into DSOs.
9254 [Ralf S. Engelschall]
9256 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9260 *) Cleaned up the LICENSE document: The official contact for any license
9261 questions now is the OpenSSL core team under openssl-core@openssl.org.
9262 And add a paragraph about the dual-license situation to make sure people
9263 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9264 to the OpenSSL toolkit.
9265 [Ralf S. Engelschall]
9267 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9268 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9269 Additonally cleaned up the `make links' target: Remove unnecessary
9270 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9271 to speed processing and no longer clutter the display with confusing
9272 stuff. Instead only the actually done links are displayed.
9273 [Ralf S. Engelschall]
9275 *) Permit null encryption ciphersuites, used for authentication only. It used
9276 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9277 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9281 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9282 signed attributes when verifying signatures (this would break them),
9283 the detached data encoding was wrong and public keys obtained using
9284 X509_get_pubkey() weren't freed.
9287 *) Add text documentation for the BUFFER functions. Also added a work around
9288 to a Win95 console bug. This was triggered by the password read stuff: the
9289 last character typed gets carried over to the next fread(). If you were
9290 generating a new cert request using 'req' for example then the last
9291 character of the passphrase would be CR which would then enter the first
9295 *) Added the new `Includes OpenSSL Cryptography Software' button as
9296 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9297 button and can be used by applications based on OpenSSL to show the
9298 relationship to the OpenSSL project.
9299 [Ralf S. Engelschall]
9301 *) Remove confusing variables in function signatures in files
9302 ssl/ssl_lib.c and ssl/ssl.h.
9303 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9305 *) Don't install bss_file.c under PREFIX/include/
9306 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9308 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9309 functions that return function pointers and has support for NT specific
9310 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9311 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9312 unsigned to signed types: this was killing the Win32 compile.
9315 *) Add new certificate file to stack functions,
9316 SSL_add_dir_cert_subjects_to_stack() and
9317 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9318 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9319 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9320 This means that Apache-SSL and similar packages don't have to mess around
9321 to add as many CAs as they want to the preferred list.
9324 *) Experiment with doxygen documentation. Currently only partially applied to
9326 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9327 openssl.doxy as the configuration file.
9330 *) Get rid of remaining C++-style comments which strict C compilers hate.
9331 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9333 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9334 compiled in by default: it has problems with large keys.
9337 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9338 DH private keys and/or callback functions which directly correspond to
9339 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9340 is needed for applications which have to configure certificates on a
9341 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9343 For the RSA certificate situation is makes no difference, but
9344 for the DSA certificate situation this fixes the "no shared cipher"
9345 problem where the OpenSSL cipher selection procedure failed because the
9346 temporary keys were not overtaken from the context and the API provided
9347 no way to reconfigure them.
9348 The new functions now let applications reconfigure the stuff and they
9349 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9350 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9351 non-public-API function ssl_cert_instantiate() is used as a helper
9352 function and also to reduce code redundancy inside ssl_rsa.c.
9353 [Ralf S. Engelschall]
9355 *) Move s_server -dcert and -dkey options out of the undocumented feature
9356 area because they are useful for the DSA situation and should be
9357 recognized by the users.
9358 [Ralf S. Engelschall]
9360 *) Fix the cipher decision scheme for export ciphers: the export bits are
9361 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9362 SSL_EXP_MASK. So, the original variable has to be used instead of the
9363 already masked variable.
9364 [Richard Levitte <levitte@stacken.kth.se>]
9366 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9367 [Richard Levitte <levitte@stacken.kth.se>]
9369 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9370 from `int' to `unsigned int' because it's a length and initialized by
9371 EVP_DigestFinal() which expects an `unsigned int *'.
9372 [Richard Levitte <levitte@stacken.kth.se>]
9374 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9375 script. Instead use the usual Shell->Perl transition trick.
9376 [Ralf S. Engelschall]
9378 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9379 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9380 -noout -modulus' as it's already the case for `openssl rsa -noout
9381 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9382 currently the public key is printed (a decision which was already done by
9383 `openssl dsa -modulus' in the past) which serves a similar purpose.
9384 Additionally the NO_RSA no longer completely removes the whole -modulus
9385 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9387 [Ralf S. Engelschall]
9389 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9390 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9391 [Arne Ansper <arne@ats.cyber.ee>]
9393 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9394 to be added. Now both 'req' and 'ca' can use new objects defined in the
9398 *) Add cool BIO that does syslog (or event log on NT).
9399 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9401 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9402 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9403 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9404 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9407 *) Add preliminary config info for new extension code.
9410 *) Make RSA_NO_PADDING really use no padding.
9411 [Ulf Moeller <ulf@fitug.de>]
9413 *) Generate errors when private/public key check is done.
9416 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9417 for some CRL extensions and new objects added.
9420 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9421 key usage extension and fuller support for authority key id.
9424 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9425 padding method for RSA, which is recommended for new applications in PKCS
9426 #1 v2.0 (RFC 2437, October 1998).
9427 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9428 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9429 against Bleichbacher's attack on RSA.
9430 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9433 *) Updates to the new SSL compression code
9434 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9436 *) Fix so that the version number in the master secret, when passed
9437 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9438 (because the server will not accept higher), that the version number
9439 is 0x03,0x01, not 0x03,0x00
9440 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9442 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9443 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9444 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9447 *) Support for RAW extensions where an arbitrary extension can be
9448 created by including its DER encoding. See apps/openssl.cnf for
9452 *) Make sure latest Perl versions don't interpret some generated C array
9453 code as Perl array code in the crypto/err/err_genc.pl script.
9454 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9456 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9457 not many people have the assembler. Various Win32 compilation fixes and
9458 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9462 *) Modify configure script 'Configure' to automatically create crypto/date.h
9463 file under Win32 and also build pem.h from pem.org. New script
9464 util/mkfiles.pl to create the MINFO file on environments that can't do a
9465 'make files': perl util/mkfiles.pl >MINFO should work.
9468 *) Major rework of DES function declarations, in the pursuit of correctness
9469 and purity. As a result, many evil casts evaporated, and some weirdness,
9470 too. You may find this causes warnings in your code. Zapping your evil
9471 casts will probably fix them. Mostly.
9474 *) Fix for a typo in asn1.h. Bug fix to object creation script
9475 obj_dat.pl. It considered a zero in an object definition to mean
9476 "end of object": none of the objects in objects.h have any zeros
9477 so it wasn't spotted.
9478 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9480 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9481 Masking (CBCM). In the absence of test vectors, the best I have been able
9482 to do is check that the decrypt undoes the encrypt, so far. Send me test
9483 vectors if you have them.
9486 *) Correct calculation of key length for export ciphers (too much space was
9487 allocated for null ciphers). This has not been tested!
9490 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9491 message is now correct (it understands "crypto" and "ssl" on its
9492 command line). There is also now an "update" option. This will update
9493 the util/ssleay.num and util/libeay.num files with any new functions.
9495 perl util/mkdef.pl crypto ssl update
9496 it will update them.
9499 *) Overhauled the Perl interface (perl/*):
9500 - ported BN stuff to OpenSSL's different BN library
9501 - made the perl/ source tree CVS-aware
9502 - renamed the package from SSLeay to OpenSSL (the files still contain
9503 their history because I've copied them in the repository)
9504 - removed obsolete files (the test scripts will be replaced
9505 by better Test::Harness variants in the future)
9506 [Ralf S. Engelschall]
9508 *) First cut for a very conservative source tree cleanup:
9509 1. merge various obsolete readme texts into doc/ssleay.txt
9510 where we collect the old documents and readme texts.
9511 2. remove the first part of files where I'm already sure that we no
9512 longer need them because of three reasons: either they are just temporary
9513 files which were left by Eric or they are preserved original files where
9514 I've verified that the diff is also available in the CVS via "cvs diff
9515 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9516 the crypto/md/ stuff).
9517 [Ralf S. Engelschall]
9519 *) More extension code. Incomplete support for subject and issuer alt
9520 name, issuer and authority key id. Change the i2v function parameters
9521 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9522 what that's for :-) Fix to ASN1 macro which messed up
9523 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9526 *) Preliminary support for ENUMERATED type. This is largely copied from the
9530 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9531 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9533 *) Make sure `make rehash' target really finds the `openssl' program.
9534 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9536 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9537 like to hear about it if this slows down other processors.
9540 *) Add CygWin32 platform information to Configure script.
9541 [Alan Batie <batie@aahz.jf.intel.com>]
9543 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9544 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9546 *) New program nseq to manipulate netscape certificate sequences
9549 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9553 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9554 but the BN code had some problems that would cause failures when
9555 doing certificate verification and some other functions.
9556 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9558 *) Add ASN1 and PEM code to support netscape certificate sequences.
9561 *) Add ASN1 and PEM code to support netscape certificate sequences.
9564 *) Add several PKIX and private extended key usage OIDs.
9567 *) Modify the 'ca' program to handle the new extension code. Modify
9568 openssl.cnf for new extension format, add comments.
9571 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9572 and add a sample to openssl.cnf so req -x509 now adds appropriate
9576 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9577 error code, add initial support to X509_print() and x509 application.
9580 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9581 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9582 stuff is currently isolated and isn't even compiled yet.
9585 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9586 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9587 Removed the versions check from X509 routines when loading extensions:
9588 this allows certain broken certificates that don't set the version
9589 properly to be processed.
9592 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9593 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9594 can still be regenerated with "make depend".
9597 *) Spelling mistake in C version of CAST-128.
9598 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9600 *) Changes to the error generation code. The perl script err-code.pl
9601 now reads in the old error codes and retains the old numbers, only
9602 adding new ones if necessary. It also only changes the .err files if new
9603 codes are added. The makefiles have been modified to only insert errors
9604 when needed (to avoid needlessly modifying header files). This is done
9605 by only inserting errors if the .err file is newer than the auto generated
9606 C file. To rebuild all the error codes from scratch (the old behaviour)
9607 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9608 or delete all the .err files.
9611 *) CAST-128 was incorrectly implemented for short keys. The C version has
9612 been fixed, but is untested. The assembler versions are also fixed, but
9613 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9614 to regenerate it if needed.
9615 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9616 Hagino <itojun@kame.net>]
9618 *) File was opened incorrectly in randfile.c.
9619 [Ulf Möller <ulf@fitug.de>]
9621 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9622 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9623 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9624 al: it's just almost always a UTCTime. Note this patch adds new error
9625 codes so do a "make errors" if there are problems.
9628 *) Correct Linux 1 recognition in config.
9629 [Ulf Möller <ulf@fitug.de>]
9631 *) Remove pointless MD5 hash when using DSA keys in ca.
9632 [Anonymous <nobody@replay.com>]
9634 *) Generate an error if given an empty string as a cert directory. Also
9635 generate an error if handed NULL (previously returned 0 to indicate an
9636 error, but didn't set one).
9637 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9639 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9642 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9643 parameters. This was causing a warning which killed off the Win32 compile.
9646 *) Remove C++ style comments from crypto/bn/bn_local.h.
9647 [Neil Costigan <neil.costigan@celocom.com>]
9649 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9650 based on a text string, looking up short and long names and finally
9651 "dot" format. The "dot" format stuff didn't work. Added new function
9652 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9653 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9654 OID is not part of the table.
9657 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9658 X509_LOOKUP_by_alias().
9661 *) Sort openssl functions by name.
9664 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9665 encryption from sample DSA keys (in case anyone is interested the password
9669 *) Make _all_ *_free functions accept a NULL pointer.
9670 [Frans Heymans <fheymans@isaserver.be>]
9672 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9674 [Anonymous <nobody@replay.com>]
9676 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9677 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9679 *) Don't blow it for numeric -newkey arguments to apps/req.
9680 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9682 *) Temp key "for export" tests were wrong in s3_srvr.c.
9683 [Anonymous <nobody@replay.com>]
9685 *) Add prototype for temp key callback functions
9686 SSL_CTX_set_tmp_{rsa,dh}_callback().
9689 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9690 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9693 *) X509_name_add_entry() freed the wrong thing after an error.
9694 [Arne Ansper <arne@ats.cyber.ee>]
9696 *) rsa_eay.c would attempt to free a NULL context.
9697 [Arne Ansper <arne@ats.cyber.ee>]
9699 *) BIO_s_socket() had a broken should_retry() on Windoze.
9700 [Arne Ansper <arne@ats.cyber.ee>]
9702 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9703 [Arne Ansper <arne@ats.cyber.ee>]
9705 *) Make sure the already existing X509_STORE->depth variable is initialized
9706 in X509_STORE_new(), but document the fact that this variable is still
9707 unused in the certificate verification process.
9708 [Ralf S. Engelschall]
9710 *) Fix the various library and apps files to free up pkeys obtained from
9711 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9714 *) Fix reference counting in X509_PUBKEY_get(). This makes
9715 demos/maurice/example2.c work, amongst others, probably.
9716 [Steve Henson and Ben Laurie]
9718 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9719 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9720 are no longer created. This way we have a single and consistent command
9721 line interface `openssl <command>', similar to `cvs <command>'.
9722 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9724 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9725 BIT STRING wrapper always have zero unused bits.
9728 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9731 *) Make the top-level INSTALL documentation easier to understand.
9734 *) Makefiles updated to exit if an error occurs in a sub-directory
9735 make (including if user presses ^C) [Paul Sutton]
9737 *) Make Montgomery context stuff explicit in RSA data structure.
9740 *) Fix build order of pem and err to allow for generated pem.h.
9743 *) Fix renumbering bug in X509_NAME_delete_entry().
9746 *) Enhanced the err-ins.pl script so it makes the error library number
9747 global and can add a library name. This is needed for external ASN1 and
9748 other error libraries.
9751 *) Fixed sk_insert which never worked properly.
9754 *) Fix ASN1 macros so they can handle indefinite length construted
9755 EXPLICIT tags. Some non standard certificates use these: they can now
9759 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9760 into a single doc/ssleay.txt bundle. This way the information is still
9761 preserved but no longer messes up this directory. Now it's new room for
9762 the new set of documenation files.
9763 [Ralf S. Engelschall]
9765 *) SETs were incorrectly DER encoded. This was a major pain, because they
9766 shared code with SEQUENCEs, which aren't coded the same. This means that
9767 almost everything to do with SETs or SEQUENCEs has either changed name or
9768 number of arguments.
9769 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9771 *) Fix test data to work with the above.
9774 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9775 was already fixed by Eric for 0.9.1 it seems.
9776 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9778 *) Autodetect FreeBSD3.
9781 *) Fix various bugs in Configure. This affects the following platforms:
9785 unixware-2.0-pentium
9789 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9790 before they are needed.
9793 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9797 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9799 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9800 changed SSLeay to OpenSSL in version strings.
9801 [Ralf S. Engelschall]
9803 *) Some fixups to the top-level documents.
9806 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9807 because the symlink to include/ was missing.
9808 [Ralf S. Engelschall]
9810 *) Incorporated the popular no-RSA/DSA-only patches
9811 which allow to compile a RSA-free SSLeay.
9812 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9814 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9815 when "ssleay" is still not found.
9816 [Ralf S. Engelschall]
9818 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9819 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9821 *) Updated the README file.
9822 [Ralf S. Engelschall]
9824 *) Added various .cvsignore files in the CVS repository subdirs
9825 to make a "cvs update" really silent.
9826 [Ralf S. Engelschall]
9828 *) Recompiled the error-definition header files and added
9829 missing symbols to the Win32 linker tables.
9830 [Ralf S. Engelschall]
9832 *) Cleaned up the top-level documents;
9833 o new files: CHANGES and LICENSE
9834 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9835 o merged COPYRIGHT into LICENSE
9836 o removed obsolete TODO file
9837 o renamed MICROSOFT to INSTALL.W32
9838 [Ralf S. Engelschall]
9840 *) Removed dummy files from the 0.9.1b source tree:
9841 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9842 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9843 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9844 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9845 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9846 [Ralf S. Engelschall]
9848 *) Added various platform portability fixes.
9851 *) The Genesis of the OpenSSL rpject:
9852 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9853 Young and Tim J. Hudson created while they were working for C2Net until
9855 [The OpenSSL Project]
9858 Changes between 0.9.0b and 0.9.1b [not released]
9860 *) Updated a few CA certificates under certs/
9863 *) Changed some BIGNUM api stuff.
9866 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9867 DGUX x86, Linux Alpha, etc.
9870 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9871 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9875 *) Add -strparse option to asn1pars program which parses nested
9877 [Dr Stephen Henson <shenson@bigfoot.com>]
9879 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9882 *) DSA fix for "ca" program.
9885 *) Added "-genkey" option to "dsaparam" program.
9888 *) Added RIPE MD160 (rmd160) message digest.
9891 *) Added -a (all) option to "ssleay version" command.
9894 *) Added PLATFORM define which is the id given to Configure.
9897 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9900 *) Extended the ASN.1 parser routines.
9903 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9906 *) Added a BN_CTX to the BN library.
9909 *) Fixed the weak key values in DES library
9912 *) Changed API in EVP library for cipher aliases.
9915 *) Added support for RC2/64bit cipher.
9918 *) Converted the lhash library to the crypto/mem.c functions.
9921 *) Added more recognized ASN.1 object ids.
9924 *) Added more RSA padding checks for SSL/TLS.
9927 *) Added BIO proxy/filter functionality.
9930 *) Added extra_certs to SSL_CTX which can be used
9931 send extra CA certificates to the client in the CA cert chain sending
9932 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9935 *) Now Fortezza is denied in the authentication phase because
9936 this is key exchange mechanism is not supported by SSLeay at all.
9939 *) Additional PKCS1 checks.
9942 *) Support the string "TLSv1" for all TLS v1 ciphers.
9945 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9946 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9949 *) Fixed a few memory leaks.
9952 *) Fixed various code and comment typos.
9955 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9956 bytes sent in the client random.
9957 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob