5 Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
7 *) Support for automatic EC temporary key parameter selection. If enabled
8 the most preferred EC parameters are automatically used instead of
9 hardcoded fixed parameters. Now a server just has to call:
10 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
11 support ECDH and use the most appropriate parameters.
14 *) Enhance and tidy EC curve and point format TLS extension code. Use
15 static structures instead of allocation if default values are used.
16 New ctrls to set curves we wish to support and to retrieve shared curves.
17 Print out shared curves in s_server. New options to s_server and s_client
18 to set list of supported curves.
21 *) New ctrls to retrieve supported signature algorithms and
22 supported curve values as an array of NIDs. Extend openssl utility
23 to print out received values.
26 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
27 between NIDs and the more common NIST names such as "P-256". Enhance
28 ecparam utility and ECC method to recognise the NIST names for curves.
31 *) Enhance SSL/TLS certificate chain handling to support different
32 chains for each certificate instead of one chain in the parent SSL_CTX.
35 *) Support for fixed DH ciphersuite client authentication: where both
36 server and client use DH certificates with common parameters.
39 *) Support for fixed DH ciphersuites: those requiring DH server
43 *) Transparently support X9.42 DH parameters when calling
44 PEM_read_bio_DHparameters. This means existing applications can handle
45 the new parameter format automatically.
48 *) Initial experimental support for X9.42 DH parameter format: mainly
49 to support use of 'q' parameter for RFC5114 parameters.
52 *) Add DH parameters from RFC5114 including test data to dhtest.
55 *) Update fips_test_suite to support multiple command line options. New
56 test to induce all self test errors in sequence and check expected
60 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
61 sign or verify all in one operation.
64 *) Add fips_algvs: a multicall fips utility incorporaing all the algorithm
65 test programs and fips_test_suite. Includes functionality to parse
66 the minimal script output of fipsalgest.pl directly.
69 *) Add authorisation parameter to FIPS_module_mode_set().
72 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
75 *) Use separate DRBG fields for internal and external flags. New function
76 FIPS_drbg_health_check() to perform on demand health checking. Add
77 generation tests to fips_test_suite with reduced health check interval to
78 demonstrate periodic health checking. Add "nodh" option to
79 fips_test_suite to skip very slow DH test.
82 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
86 *) More extensive health check for DRBG checking many more failure modes.
87 New function FIPS_selftest_drbg_all() to handle every possible DRBG
88 combination: call this in fips_test_suite.
91 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
92 and POST to handle Dual EC cases.
95 *) Add support for canonical generation of DSA parameter 'g'. See
98 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
99 POST to handle HMAC cases.
102 *) Add functions FIPS_module_version() and FIPS_module_version_text()
103 to return numberical and string versions of the FIPS module number.
106 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
107 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implmeneted
108 outside the validated module in the FIPS capable OpenSSL.
111 *) Minor change to DRBG entropy callback semantics. In some cases
112 there is no mutiple of the block length between min_len and
113 max_len. Allow the callback to return more than max_len bytes
114 of entropy but discard any extra: it is the callback's responsibility
115 to ensure that the extra data discarded does not impact the
116 requested amount of entropy.
119 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
120 information in FIPS186-3, SP800-57 and SP800-131A.
123 *) CCM support via EVP. Interface is very similar to GCM case except we
124 must supply all data in one chunk (i.e. no update, final) and the
125 message length must be supplied if AAD is used. Add algorithm test
129 *) Initial version of POST overhaul. Add POST callback to allow the status
130 of POST to be monitored and/or failures induced. Modify fips_test_suite
131 to use callback. Always run all selftests even if one fails.
134 *) XTS support including algorithm test driver in the fips_gcmtest program.
135 Note: this does increase the maximum key length from 32 to 64 bytes but
136 there should be no binary compatibility issues as existing applications
137 will never use XTS mode.
140 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
141 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
142 performs algorithm blocking for unapproved PRNG types. Also do not
143 set PRNG type in FIPS_mode_set(): leave this to the application.
144 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
145 the standard OpenSSL PRNG: set additional data to a date time vector.
148 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
149 This shouldn't present any incompatibility problems because applications
150 shouldn't be using these directly and any that are will need to rethink
151 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
154 *) Extensive self tests and health checking required by SP800-90 DRBG.
155 Remove strength parameter from FIPS_drbg_instantiate and always
156 instantiate at maximum supported strength.
159 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
162 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
165 *) New function DH_compute_key_padded() to compute a DH key and pad with
166 leading zeroes if needed: this complies with SP800-56A et al.
169 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
170 anything, incomplete, subject to change and largely untested at present.
173 *) Modify fipscanisteronly build option to only build the necessary object
174 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
177 *) Add experimental option FIPSSYMS to give all symbols in
178 fipscanister.o and FIPS or fips prefix. This will avoid
179 conflicts with future versions of OpenSSL. Add perl script
180 util/fipsas.pl to preprocess assembly language source files
181 and rename any affected symbols.
184 *) Add selftest checks and algorithm block of non-fips algorithms in
185 FIPS mode. Remove DES2 from selftests.
188 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
189 return internal method without any ENGINE dependencies. Add new
190 tiny fips sign and verify functions.
193 *) New build option no-ec2m to disable characteristic 2 code.
196 *) New build option "fipscanisteronly". This only builds fipscanister.o
197 and (currently) associated fips utilities. Uses the file Makefile.fips
198 instead of Makefile.org as the prototype.
201 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
202 Update fips_gcmtest to use IV generator.
205 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
206 setting output buffer to NULL. The *Final function must be
207 called although it will not retrieve any additional data. The tag
208 can be set or retrieved with a ctrl. The IV length is by default 12
209 bytes (96 bits) but can be set to an alternative value. If the IV
210 length exceeds the maximum IV length (currently 16 bytes) it cannot be
214 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
215 underlying do_cipher function handles all cipher semantics itself
216 including padding and finalisation. This is useful if (for example)
217 an ENGINE cipher handles block padding itself. The behaviour of
218 do_cipher is subtly changed if this flag is set: the return value
219 is the number of characters written to the output buffer (zero is
220 no longer an error code) or a negative error code. Also if the
221 input buffer is NULL and length 0 finalisation should be performed.
224 *) If a candidate issuer certificate is already part of the constructed
225 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
228 *) Improve forward-security support: add functions
230 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
231 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
233 for use by SSL/TLS servers; the callback function will be called whenever a
234 new session is created, and gets to decide whether the session may be
235 cached to make it resumable (return 0) or not (return 1). (As by the
236 SSL/TLS protocol specifications, the session_id sent by the server will be
237 empty to indicate that the session is not resumable; also, the server will
238 not generate RFC 4507 (RFC 5077) session tickets.)
240 A simple reasonable callback implementation is to return is_forward_secure.
241 This parameter will be set to 1 or 0 depending on the ciphersuite selected
242 by the SSL/TLS server library, indicating whether it can provide forward
244 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
246 *) New function OPENSSL_gmtime_diff to find the difference in days
247 and seconds between two tm structures. This will be used to provide
248 additional functionality for ASN1_TIME.
251 *) Add -trusted_first option which attempts to find certificates in the
252 trusted store even if an untrusted chain is also supplied.
255 *) Initial experimental support for explicitly trusted non-root CAs.
256 OpenSSL still tries to build a complete chain to a root but if an
257 intermediate CA has a trust setting included that is used. The first
258 setting is used: whether to trust or reject.
261 *) New -verify_name option in command line utilities to set verification
265 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
266 Add CMAC pkey methods.
269 *) Experimental regnegotiation in s_server -www mode. If the client
270 browses /reneg connection is renegotiated. If /renegcert it is
271 renegotiated requesting a certificate.
274 *) Add an "external" session cache for debugging purposes to s_server. This
275 should help trace issues which normally are only apparent in deployed
276 multi-process servers.
279 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
280 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
281 BIO_set_cipher() and some obscure PEM functions were changed so they
282 can now return an error. The RAND changes required a change to the
283 RAND_METHOD structure.
286 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
287 a gcc attribute to warn if the result of a function is ignored. This
288 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
289 whose return value is often ignored.
292 Changes between 1.0.1c and 1.0.1d [xx XXX xxxx]
294 *) Don't use TLS 1.0 record version number in initial client hello
298 Changes between 1.0.1b and 1.0.1c [10 May 2012]
300 *) Sanity check record length before skipping explicit IV in TLS
301 1.2, 1.1 and DTLS to avoid DoS attack.
303 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
304 fuzzing as a service testing platform.
308 *) Initialise tkeylen properly when encrypting CMS messages.
309 Thanks to Solar Designer of Openwall for reporting this issue.
312 *) In FIPS mode don't try to use composite ciphers as they are not
316 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
318 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
319 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
320 mean any application compiled against OpenSSL 1.0.0 headers setting
321 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
322 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
323 0x10000000L Any application which was previously compiled against
324 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
325 will need to be recompiled as a result. Letting be results in
326 inability to disable specifically TLS 1.1 and in client context,
327 in unlike event, limit maximum offered version to TLS 1.0 [see below].
330 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
331 disable just protocol X, but all protocols above X *if* there are
332 protocols *below* X still enabled. In more practical terms it means
333 that if application wants to disable TLS1.0 in favor of TLS1.1 and
334 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
335 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
339 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
341 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
342 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
343 in CRYPTO_realloc_clean.
345 Thanks to Tavis Ormandy, Google Security Team, for discovering this
346 issue and to Adam Langley <agl@chromium.org> for fixing it.
348 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
350 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
353 *) Workarounds for some broken servers that "hang" if a client hello
354 record length exceeds 255 bytes:
356 1. Do not use record version number > TLS 1.0 in initial client
357 hello: some (but not all) hanging servers will now work.
358 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
359 the number of ciphers sent in the client hello. This should be
360 set to an even number, such as 50, for example by passing:
361 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
362 Most broken servers should now work.
363 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
364 TLS 1.2 client support entirely.
367 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
370 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
372 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
373 STRING form instead of a DigestInfo.
376 *) The format used for MDC2 RSA signatures is inconsistent between EVP
377 and the RSA_sign/RSA_verify functions. This was made more apparent when
378 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
379 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
380 the correct format in RSA_verify so both forms transparently work.
383 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
384 STRING form instead of a DigestInfo.
387 *) Some servers which support TLS 1.0 can choke if we initially indicate
388 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
389 encrypted premaster secret. As a workaround use the maximum pemitted
390 client version in client hello, this should keep such servers happy
391 and still work with previous versions of OpenSSL.
394 *) Add support for TLS/DTLS heartbeats.
395 [Robin Seggelmann <seggelmann@fh-muenster.de>]
397 *) Add support for SCTP.
398 [Robin Seggelmann <seggelmann@fh-muenster.de>]
400 *) Improved PRNG seeding for VOS.
401 [Paul Green <Paul.Green@stratus.com>]
403 *) Extensive assembler packs updates, most notably:
405 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
406 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
407 - x86_64: bit-sliced AES implementation;
408 - ARM: NEON support, contemporary platforms optimizations;
409 - s390x: z196 support;
410 - *: GHASH and GF(2^m) multiplication implementations;
414 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
415 (removal of unnecessary code)
416 [Peter Sylvester <peter.sylvester@edelweb.fr>]
418 *) Add TLS key material exporter from RFC 5705.
421 *) Add DTLS-SRTP negotiation from RFC 5764.
424 *) Add Next Protocol Negotiation,
425 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
426 disabled with a no-npn flag to config or Configure. Code donated
428 [Adam Langley <agl@google.com> and Ben Laurie]
430 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
431 NIST-P256, NIST-P521, with constant-time single point multiplication on
432 typical inputs. Compiler support for the nonstandard type __uint128_t is
433 required to use this (present in gcc 4.4 and later, for 64-bit builds).
434 Code made available under Apache License version 2.0.
436 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
437 line to include this in your build of OpenSSL, and run "make depend" (or
438 "make update"). This enables the following EC_METHODs:
440 EC_GFp_nistp224_method()
441 EC_GFp_nistp256_method()
442 EC_GFp_nistp521_method()
444 EC_GROUP_new_by_curve_name() will automatically use these (while
445 EC_GROUP_new_curve_GFp() currently prefers the more flexible
447 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
449 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
450 all platforms. Move ssize_t definition from e_os.h to the public
451 header file e_os2.h as it now appears in public header file cms.h
454 *) New -sigopt option to the ca, req and x509 utilities. Additional
455 signature parameters can be passed using this option and in
459 *) Add RSA PSS signing function. This will generate and set the
460 appropriate AlgorithmIdentifiers for PSS based on those in the
461 corresponding EVP_MD_CTX structure. No application support yet.
464 *) Support for companion algorithm specific ASN1 signing routines.
465 New function ASN1_item_sign_ctx() signs a pre-initialised
466 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
467 the appropriate parameters.
470 *) Add new algorithm specific ASN1 verification initialisation function
471 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
472 handling will be the same no matter what EVP_PKEY_METHOD is used.
473 Add a PSS handler to support verification of PSS signatures: checked
474 against a number of sample certificates.
477 *) Add signature printing for PSS. Add PSS OIDs.
478 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
480 *) Add algorithm specific signature printing. An individual ASN1 method
481 can now print out signatures instead of the standard hex dump.
483 More complex signatures (e.g. PSS) can print out more meaningful
484 information. Include DSA version that prints out the signature
488 *) Password based recipient info support for CMS library: implementing
492 *) Split password based encryption into PBES2 and PBKDF2 functions. This
493 neatly separates the code into cipher and PBE sections and is required
494 for some algorithms that split PBES2 into separate pieces (such as
498 *) Session-handling fixes:
499 - Fix handling of connections that are resuming with a session ID,
500 but also support Session Tickets.
501 - Fix a bug that suppressed issuing of a new ticket if the client
502 presented a ticket with an expired session.
503 - Try to set the ticket lifetime hint to something reasonable.
504 - Make tickets shorter by excluding irrelevant information.
505 - On the client side, don't ignore renewed tickets.
506 [Adam Langley, Bodo Moeller (Google)]
508 *) Fix PSK session representation.
511 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
513 This work was sponsored by Intel.
516 *) Add GCM support to TLS library. Some custom code is needed to split
517 the IV between the fixed (from PRF) and explicit (from TLS record)
518 portions. This adds all GCM ciphersuites supported by RFC5288 and
519 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
520 add a special AESGCM string for GCM only.
523 *) Expand range of ctrls for AES GCM. Permit setting invocation
524 field on decrypt and retrieval of invocation field only on encrypt.
527 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
528 As required by RFC5289 these ciphersuites cannot be used if for
529 versions of TLS earlier than 1.2.
532 *) For FIPS capable OpenSSL interpret a NULL default public key method
533 as unset and return the appopriate default but do *not* set the default.
534 This means we can return the appopriate method in applications that
535 swicth between FIPS and non-FIPS modes.
538 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
539 ENGINE is used then we cannot handle that in the FIPS module so we
540 keep original code iff non-FIPS operations are allowed.
543 *) Add -attime option to openssl utilities.
544 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
546 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
549 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
550 FIPS EC methods unconditionally for now.
553 *) New build option no-ec2m to disable characteristic 2 code.
556 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
557 all cases can be covered as some introduce binary incompatibilities.
560 *) Redirect RSA operations to FIPS module including keygen,
561 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
564 *) Add similar low level API blocking to ciphers.
567 *) Low level digest APIs are not approved in FIPS mode: any attempt
568 to use these will cause a fatal error. Applications that *really* want
569 to use them can use the private_* version instead.
572 *) Redirect cipher operations to FIPS module for FIPS builds.
575 *) Redirect digest operations to FIPS module for FIPS builds.
578 *) Update build system to add "fips" flag which will link in fipscanister.o
579 for static and shared library builds embedding a signature if needed.
582 *) Output TLS supported curves in preference order instead of numerical
583 order. This is currently hardcoded for the highest order curves first.
584 This should be configurable so applications can judge speed vs strength.
587 *) Add TLS v1.2 server support for client authentication.
590 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
594 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
595 FIPS modules versions.
598 *) Add TLS v1.2 client side support for client authentication. Keep cache
599 of handshake records longer as we don't know the hash algorithm to use
600 until after the certificate request message is received.
603 *) Initial TLS v1.2 client support. Add a default signature algorithms
604 extension including all the algorithms we support. Parse new signature
605 format in client key exchange. Relax some ECC signing restrictions for
606 TLS v1.2 as indicated in RFC5246.
609 *) Add server support for TLS v1.2 signature algorithms extension. Switch
610 to new signature format when needed using client digest preference.
611 All server ciphersuites should now work correctly in TLS v1.2. No client
612 support yet and no support for client certificates.
615 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
616 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
617 ciphersuites. At present only RSA key exchange ciphersuites work with
618 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
619 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
620 and version checking.
623 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
624 with this defined it will not be affected by any changes to ssl internal
625 structures. Add several utility functions to allow openssl application
626 to work with OPENSSL_NO_SSL_INTERN defined.
630 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
632 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
635 *) Permit abbreviated handshakes when renegotiating using the function
636 SSL_renegotiate_abbreviated().
637 [Robin Seggelmann <seggelmann@fh-muenster.de>]
639 *) Add call to ENGINE_register_all_complete() to
640 ENGINE_load_builtin_engines(), so some implementations get used
641 automatically instead of needing explicit application support.
644 *) Add support for TLS key exporter as described in RFC5705.
645 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
647 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
648 a few changes are required:
650 Add SSL_OP_NO_TLSv1_1 flag.
652 Update version checking logic to handle version 1.1.
653 Add explicit IV handling (ported from DTLS code).
654 Add command line options to s_client/s_server.
657 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
659 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
660 in CMS and PKCS7 code. When RSA decryption fails use a random key for
661 content decryption and always return the same error. Note: this attack
662 needs on average 2^20 messages so it only affects automated senders. The
663 old behaviour can be reenabled in the CMS code by setting the
664 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
665 an MMA defence is not necessary.
666 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
667 this issue. (CVE-2012-0884)
670 *) Fix CVE-2011-4619: make sure we really are receiving a
671 client hello before rejecting multiple SGC restarts. Thanks to
672 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
675 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
677 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
678 Thanks to Antonio Martin, Enterprise Secure Access Research and
679 Development, Cisco Systems, Inc. for discovering this bug and
680 preparing a fix. (CVE-2012-0050)
683 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
685 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
686 of the Vaudenay padding oracle attack on CBC mode encryption
687 which enables an efficient plaintext recovery attack against
688 the OpenSSL implementation of DTLS. Their attack exploits timing
689 differences arising during decryption processing. A research
690 paper describing this attack can be found at:
691 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
692 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
693 Security Group at Royal Holloway, University of London
694 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
695 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
696 for preparing the fix. (CVE-2011-4108)
697 [Robin Seggelmann, Michael Tuexen]
699 *) Clear bytes used for block padding of SSL 3.0 records.
701 [Adam Langley (Google)]
703 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
704 Kadianakis <desnacked@gmail.com> for discovering this issue and
705 Adam Langley for preparing the fix. (CVE-2011-4619)
706 [Adam Langley (Google)]
708 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
709 [Andrey Kulikov <amdeich@gmail.com>]
711 *) Prevent malformed RFC3779 data triggering an assertion failure.
712 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
713 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
714 [Rob Austein <sra@hactrn.net>]
716 *) Improved PRNG seeding for VOS.
717 [Paul Green <Paul.Green@stratus.com>]
719 *) Fix ssl_ciph.c set-up race.
720 [Adam Langley (Google)]
722 *) Fix spurious failures in ecdsatest.c.
723 [Emilia Käsper (Google)]
725 *) Fix the BIO_f_buffer() implementation (which was mixing different
726 interpretations of the '..._len' fields).
727 [Adam Langley (Google)]
729 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
730 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
731 threads won't reuse the same blinding coefficients.
733 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
734 lock to call BN_BLINDING_invert_ex, and avoids one use of
735 BN_BLINDING_update for each BN_BLINDING structure (previously,
736 the last update always remained unused).
737 [Emilia Käsper (Google)]
739 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
740 [Bob Buckholz (Google)]
742 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
744 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
745 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
746 [Kaspar Brand <ossl@velox.ch>]
748 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
749 for multi-threaded use of ECDH. (CVE-2011-3210)
750 [Adam Langley (Google)]
752 *) Fix x509_name_ex_d2i memory leak on bad inputs.
755 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
756 signature public key algorithm by using OID xref utilities instead.
757 Before this you could only use some ECC ciphersuites with SHA1 only.
760 *) Add protection against ECDSA timing attacks as mentioned in the paper
761 by Billy Bob Brumley and Nicola Tuveri, see:
763 http://eprint.iacr.org/2011/232.pdf
765 [Billy Bob Brumley and Nicola Tuveri]
767 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
769 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
770 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
772 *) Fix bug in string printing code: if *any* escaping is enabled we must
773 escape the escape character (backslash) or the resulting string is
777 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
779 *) Disable code workaround for ancient and obsolete Netscape browsers
780 and servers: an attacker can use it in a ciphersuite downgrade attack.
781 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
784 *) Fixed J-PAKE implementation error, originally discovered by
785 Sebastien Martini, further info and confirmation from Stefan
786 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
789 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
791 *) Fix extension code to avoid race conditions which can result in a buffer
792 overrun vulnerability: resumed sessions must not be modified as they can
793 be shared by multiple threads. CVE-2010-3864
796 *) Fix WIN32 build system to correctly link an ENGINE directory into
800 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
802 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
804 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
806 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
808 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
809 context. The operation can be customised via the ctrl mechanism in
810 case ENGINEs want to include additional functionality.
813 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
816 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
817 output hashes compatible with older versions of OpenSSL.
818 [Willy Weisz <weisz@vcpc.univie.ac.at>]
820 *) Fix compression algorithm handling: if resuming a session use the
821 compression algorithm of the resumed session instead of determining
822 it from client hello again. Don't allow server to change algorithm.
825 *) Add load_crls() function to apps tidying load_certs() too. Add option
826 to verify utility to allow additional CRLs to be included.
829 *) Update OCSP request code to permit adding custom headers to the request:
830 some responders need this.
833 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
835 [Julia Lawall <julia@diku.dk>]
837 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
838 needlessly dereferenced structures, used obsolete functions and
839 didn't handle all updated verify codes correctly.
842 *) Disable MD2 in the default configuration.
845 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
846 indicate the initial BIO being pushed or popped. This makes it possible
847 to determine whether the BIO is the one explicitly called or as a result
848 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
849 it handles reference counts correctly and doesn't zero out the I/O bio
850 when it is not being explicitly popped. WARNING: applications which
851 included workarounds for the old buggy behaviour will need to be modified
852 or they could free up already freed BIOs.
855 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
856 renaming to all platforms (within the 0.9.8 branch, this was
857 done conditionally on Netware platforms to avoid a name clash).
858 [Guenter <lists@gknw.net>]
860 *) Add ECDHE and PSK support to DTLS.
861 [Michael Tuexen <tuexen@fh-muenster.de>]
863 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
867 *) Add "missing" function EVP_MD_flags() (without this the only way to
868 retrieve a digest flags is by accessing the structure directly. Update
869 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
870 or cipher is registered as in the "from" argument. Print out all
871 registered digests in the dgst usage message instead of manually
872 attempting to work them out.
875 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
876 this allows the use of compression and extensions. Change default cipher
877 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
878 by default unless an application cipher string requests it.
881 *) Alter match criteria in PKCS12_parse(). It used to try to use local
882 key ids to find matching certificates and keys but some PKCS#12 files
883 don't follow the (somewhat unwritten) rules and this strategy fails.
884 Now just gather all certificates together and the first private key
885 then look for the first certificate that matches the key.
888 *) Support use of registered digest and cipher names for dgst and cipher
889 commands instead of having to add each one as a special case. So now
896 openssl dgst -sha256 foo
898 and this works for ENGINE based algorithms too.
902 *) Update Gost ENGINE to support parameter files.
903 [Victor B. Wagner <vitus@cryptocom.ru>]
905 *) Support GeneralizedTime in ca utility.
906 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
908 *) Enhance the hash format used for certificate directory links. The new
909 form uses the canonical encoding (meaning equivalent names will work
910 even if they aren't identical) and uses SHA1 instead of MD5. This form
911 is incompatible with the older format and as a result c_rehash should
912 be used to rebuild symbolic links.
915 *) Make PKCS#8 the default write format for private keys, replacing the
916 traditional format. This form is standardised, more secure and doesn't
917 include an implicit MD5 dependency.
920 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
921 committed to OpenSSL should pass this lot as a minimum.
924 *) Add session ticket override functionality for use by EAP-FAST.
925 [Jouni Malinen <j@w1.fi>]
927 *) Modify HMAC functions to return a value. Since these can be implemented
928 in an ENGINE errors can occur.
931 *) Type-checked OBJ_bsearch_ex.
934 *) Type-checked OBJ_bsearch. Also some constification necessitated
935 by type-checking. Still to come: TXT_DB, bsearch(?),
936 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
940 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
941 seconds to a tm structure directly, instead of going through OS
942 specific date routines. This avoids any issues with OS routines such
943 as the year 2038 bug. New *_adj() functions for ASN1 time structures
944 and X509_time_adj_ex() to cover the extended range. The existing
945 X509_time_adj() is still usable and will no longer have any date issues.
948 *) Delta CRL support. New use deltas option which will attempt to locate
949 and search any appropriate delta CRLs available.
951 This work was sponsored by Google.
954 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
955 code and add additional score elements. Validate alternate CRL paths
956 as part of the CRL checking and indicate a new error "CRL path validation
957 error" in this case. Applications wanting additional details can use
958 the verify callback and check the new "parent" field. If this is not
959 NULL CRL path validation is taking place. Existing applications wont
960 see this because it requires extended CRL support which is off by
963 This work was sponsored by Google.
966 *) Support for freshest CRL extension.
968 This work was sponsored by Google.
971 *) Initial indirect CRL support. Currently only supported in the CRLs
972 passed directly and not via lookup. Process certificate issuer
973 CRL entry extension and lookup CRL entries by bother issuer name
974 and serial number. Check and process CRL issuer entry in IDP extension.
976 This work was sponsored by Google.
979 *) Add support for distinct certificate and CRL paths. The CRL issuer
980 certificate is validated separately in this case. Only enabled if
981 an extended CRL support flag is set: this flag will enable additional
982 CRL functionality in future.
984 This work was sponsored by Google.
987 *) Add support for policy mappings extension.
989 This work was sponsored by Google.
992 *) Fixes to pathlength constraint, self issued certificate handling,
993 policy processing to align with RFC3280 and PKITS tests.
995 This work was sponsored by Google.
998 *) Support for name constraints certificate extension. DN, email, DNS
999 and URI types are currently supported.
1001 This work was sponsored by Google.
1004 *) To cater for systems that provide a pointer-based thread ID rather
1005 than numeric, deprecate the current numeric thread ID mechanism and
1006 replace it with a structure and associated callback type. This
1007 mechanism allows a numeric "hash" to be extracted from a thread ID in
1008 either case, and on platforms where pointers are larger than 'long',
1009 mixing is done to help ensure the numeric 'hash' is usable even if it
1010 can't be guaranteed unique. The default mechanism is to use "&errno"
1011 as a pointer-based thread ID to distinguish between threads.
1013 Applications that want to provide their own thread IDs should now use
1014 CRYPTO_THREADID_set_callback() to register a callback that will call
1015 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1017 Note that ERR_remove_state() is now deprecated, because it is tied
1018 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1019 to free the current thread's error state should be replaced by
1020 ERR_remove_thread_state(NULL).
1022 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1023 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1024 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1025 application was previously providing a numeric thread callback that
1026 was inappropriate for distinguishing threads, then uniqueness might
1027 have been obtained with &errno that happened immediately in the
1028 intermediate development versions of OpenSSL; this is no longer the
1029 case, the numeric thread callback will now override the automatic use
1031 [Geoff Thorpe, with help from Bodo Moeller]
1033 *) Initial support for different CRL issuing certificates. This covers a
1034 simple case where the self issued certificates in the chain exist and
1035 the real CRL issuer is higher in the existing chain.
1037 This work was sponsored by Google.
1040 *) Removed effectively defunct crypto/store from the build.
1043 *) Revamp of STACK to provide stronger type-checking. Still to come:
1044 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1045 ASN1_STRING, CONF_VALUE.
1048 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1049 RAM on SSL connections. This option can save about 34k per idle SSL.
1052 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1053 STACK, TXT_DB, bsearch, qsort.
1056 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1057 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1058 support for data, signedData, compressedData, digestedData and
1059 encryptedData, envelopedData types included. Scripts to check against
1060 RFC4134 examples draft and interop and consistency checks of many
1061 content types and variants.
1064 *) Add options to enc utility to support use of zlib compression BIO.
1067 *) Extend mk1mf to support importing of options and assembly language
1068 files from Configure script, currently only included in VC-WIN32.
1069 The assembly language rules can now optionally generate the source
1070 files from the associated perl scripts.
1073 *) Implement remaining functionality needed to support GOST ciphersuites.
1074 Interop testing has been performed using CryptoPro implementations.
1075 [Victor B. Wagner <vitus@cryptocom.ru>]
1077 *) s390x assembler pack.
1080 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1084 *) Implement Opaque PRF Input TLS extension as specified in
1085 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1086 official specification yet and no extension type assignment by
1087 IANA exists, this extension (for now) will have to be explicitly
1088 enabled when building OpenSSL by providing the extension number
1089 to use. For example, specify an option
1091 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1093 to the "config" or "Configure" script to enable the extension,
1094 assuming extension number 0x9527 (which is a completely arbitrary
1095 and unofficial assignment based on the MD5 hash of the Internet
1096 Draft). Note that by doing so, you potentially lose
1097 interoperability with other TLS implementations since these might
1098 be using the same extension number for other purposes.
1100 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1101 opaque PRF input value to use in the handshake. This will create
1102 an interal copy of the length-'len' string at 'src', and will
1103 return non-zero for success.
1105 To get more control and flexibility, provide a callback function
1108 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1109 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1113 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1116 Callback function 'cb' will be called in handshakes, and is
1117 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1118 Argument 'arg' is for application purposes (the value as given to
1119 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1120 be provided to the callback function). The callback function
1121 has to return non-zero to report success: usually 1 to use opaque
1122 PRF input just if possible, or 2 to enforce use of the opaque PRF
1123 input. In the latter case, the library will abort the handshake
1124 if opaque PRF input is not successfully negotiated.
1126 Arguments 'peerinput' and 'len' given to the callback function
1127 will always be NULL and 0 in the case of a client. A server will
1128 see the client's opaque PRF input through these variables if
1129 available (NULL and 0 otherwise). Note that if the server
1130 provides an opaque PRF input, the length must be the same as the
1131 length of the client's opaque PRF input.
1133 Note that the callback function will only be called when creating
1134 a new session (session resumption can resume whatever was
1135 previously negotiated), and will not be called in SSL 2.0
1136 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1137 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1138 for applications that need to enforce opaque PRF input.
1142 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1145 [Victor B. Wagner <vitus@cryptocom.ru>]
1147 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1148 RFC4507bis. The encrypted ticket format is an encrypted encoded
1149 SSL_SESSION structure, that way new session features are automatically
1152 If a client application caches session in an SSL_SESSION structure
1153 support is transparent because tickets are now stored in the encoded
1156 The SSL_CTX structure automatically generates keys for ticket
1157 protection in servers so again support should be possible
1158 with no application modification.
1160 If a client or server wishes to disable RFC4507 support then the option
1161 SSL_OP_NO_TICKET can be set.
1163 Add a TLS extension debugging callback to allow the contents of any client
1164 or server extensions to be examined.
1166 This work was sponsored by Google.
1169 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1170 OpenSSL should now compile cleanly on gcc 4.2
1171 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1173 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1174 support including streaming MAC support: this is required for GOST
1175 ciphersuite support.
1176 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1178 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1179 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1180 to output in BER and PEM format.
1183 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1184 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1185 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1186 ENGINE support for HMAC keys which are unextractable. New -mac and
1187 -macopt options to dgst utility.
1190 *) New option -sigopt to dgst utility. Update dgst to use
1191 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1192 alternative signing paramaters such as X9.31 or PSS in the dgst
1196 *) Change ssl_cipher_apply_rule(), the internal function that does
1197 the work each time a ciphersuite string requests enabling
1198 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1199 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1200 the order of disabled ciphersuites such that those ciphersuites
1201 that most recently went from enabled to disabled not only stay
1202 in order with respect to each other, but also have higher priority
1203 than other disabled ciphersuites the next time ciphersuites are
1206 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1207 the same ciphersuites as with "HIGH" alone, but in a specific
1208 order where the PSK ciphersuites come first (since they are the
1209 most recently disabled ciphersuites when "HIGH" is parsed).
1211 Also, change ssl_create_cipher_list() (using this new
1212 funcionality) such that between otherwise identical
1213 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1217 *) Change ssl_create_cipher_list() so that it automatically
1218 arranges the ciphersuites in reasonable order before starting
1219 to process the rule string. Thus, the definition for "DEFAULT"
1220 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1221 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1222 This makes it much easier to arrive at a reasonable default order
1223 in applications for which anonymous ciphers are OK (meaning
1224 that you can't actually use DEFAULT).
1225 [Bodo Moeller; suggested by Victor Duchovni]
1227 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1228 processing) into multiple integers instead of setting
1229 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1230 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1231 (These masks as well as the individual bit definitions are hidden
1232 away into the non-exported interface ssl/ssl_locl.h, so this
1233 change to the definition of the SSL_CIPHER structure shouldn't
1234 affect applications.) This give us more bits for each of these
1235 categories, so there is no longer a need to coagulate AES128 and
1236 AES256 into a single algorithm bit, and to coagulate Camellia128
1237 and Camellia256 into a single algorithm bit, which has led to all
1240 Thus, among other things, the kludge introduced in 0.9.7m and
1241 0.9.8e for masking out AES256 independently of AES128 or masking
1242 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1244 With the change, we also introduce new ciphersuite aliases that
1245 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1249 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1250 Use the leftmost N bytes of the signature input if the input is
1251 larger than the prime q (with N being the size in bytes of q).
1254 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1255 it yet and it is largely untested.
1258 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1261 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1262 some compilers (gcc 4.2 and later) reject their use. Safestack is
1263 reimplemented. Update ASN1 to avoid use of legacy functions.
1266 *) Win32/64 targets are linked with Winsock2.
1269 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1270 to external functions. This can be used to increase CRL handling
1271 efficiency especially when CRLs are very large by (for example) storing
1272 the CRL revoked certificates in a database.
1275 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1276 new CRLs added to a directory can be used. New command line option
1277 -verify_return_error to s_client and s_server. This causes real errors
1278 to be returned by the verify callback instead of carrying on no matter
1279 what. This reflects the way a "real world" verify callback would behave.
1282 *) GOST engine, supporting several GOST algorithms and public key formats.
1283 Kindly donated by Cryptocom.
1286 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1287 partitioned by DP are handled but no indirect CRL or reason partitioning
1288 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1289 selected via a scoring technique which handles IDP and AKID in CRLs.
1292 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1293 will ultimately be used for all verify operations: this will remove the
1294 X509_STORE dependency on certificate verification and allow alternative
1295 lookup methods. X509_STORE based implementations of these two callbacks.
1298 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1299 Modify get_crl() to find a valid (unexpired) CRL if possible.
1302 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1303 this would be called X509_CRL_cmp() but that name is already used by
1304 a function that just compares CRL issuer names. Cache several CRL
1305 extensions in X509_CRL structure and cache CRLDP in X509.
1308 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1309 this maps equivalent X509_NAME structures into a consistent structure.
1310 Name comparison can then be performed rapidly using memcmp().
1313 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1317 *) Allow digests to supply their own micalg string for S/MIME type using
1318 the ctrl EVP_MD_CTRL_MICALG.
1321 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1322 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1323 ctrl. It can then customise the structure before and/or after signing
1327 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1328 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1329 to free up any added signature OIDs.
1332 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1333 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1334 digest and cipher tables. New options added to openssl utility:
1335 list-message-digest-algorithms and list-cipher-algorithms.
1338 *) Change the array representation of binary polynomials: the list
1339 of degrees of non-zero coefficients is now terminated with -1.
1340 Previously it was terminated with 0, which was also part of the
1341 value; thus, the array representation was not applicable to
1342 polynomials where t^0 has coefficient zero. This change makes
1343 the array representation useful in a more general context.
1346 *) Various modifications and fixes to SSL/TLS cipher string
1347 handling. For ECC, the code now distinguishes between fixed ECDH
1348 with RSA certificates on the one hand and with ECDSA certificates
1349 on the other hand, since these are separate ciphersuites. The
1350 unused code for Fortezza ciphersuites has been removed.
1352 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1353 (not "ECDHE"). For consistency with the code for DH
1354 certificates, use of ECDH certificates is now considered ECDH
1355 authentication, not RSA or ECDSA authentication (the latter is
1356 merely the CA's signing algorithm and not actively used in the
1359 The temporary ciphersuite alias "ECCdraft" is no longer
1360 available, and ECC ciphersuites are no longer excluded from "ALL"
1361 and "DEFAULT". The following aliases now exist for RFC 4492
1362 ciphersuites, most of these by analogy with the DH case:
1364 kECDHr - ECDH cert, signed with RSA
1365 kECDHe - ECDH cert, signed with ECDSA
1366 kECDH - ECDH cert (signed with either RSA or ECDSA)
1367 kEECDH - ephemeral ECDH
1368 ECDH - ECDH cert or ephemeral ECDH
1374 AECDH - anonymous ECDH
1375 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1379 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1380 Use correct micalg parameters depending on digest(s) in signed message.
1383 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1384 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1387 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1388 an engine to register a method. Add ENGINE lookups for methods and
1389 functional reference processing.
1392 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1393 EVP_{Sign,Verify}* which allow an application to customise the signature
1397 *) New -resign option to smime utility. This adds one or more signers
1398 to an existing PKCS#7 signedData structure. Also -md option to use an
1399 alternative message digest algorithm for signing.
1402 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1403 create PKCS7 structures containing multiple signers. Update smime
1404 application to support multiple signers.
1407 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1411 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1412 Reorganize PBE internals to lookup from a static table using NIDs,
1413 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1414 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1415 PRF which will be automatically used with PBES2.
1418 *) Replace the algorithm specific calls to generate keys in "req" with the
1422 *) Update PKCS#7 enveloped data routines to use new API. This is now
1423 supported by any public key method supporting the encrypt operation. A
1424 ctrl is added to allow the public key algorithm to examine or modify
1425 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1429 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1430 a default digest type to use. In most cases this will be SHA1 but some
1431 algorithms (such as GOST) need to specify an alternative digest. The
1432 return value indicates how strong the prefernce is 1 means optional and
1433 2 is mandatory (that is it is the only supported type). Modify
1434 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1435 use the default md. Update openssl utilities to use the default digest
1436 type for signing if it is not explicitly indicated.
1439 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1440 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1441 signing method from the key type. This effectively removes the link
1442 between digests and public key types.
1445 *) Add an OID cross reference table and utility functions. Its purpose is to
1446 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1447 rsaEncryption. This will allow some of the algorithm specific hackery
1448 needed to use the correct OID to be removed.
1451 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1452 structures for PKCS7_sign(). They are now set up by the relevant public
1456 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1459 *) Add support for key derivation (agreement) in the API, DH method and
1463 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1464 public and private key formats. As a side effect these add additional
1465 command line functionality not previously available: DSA signatures can be
1466 generated and verified using pkeyutl and DH key support and generation in
1471 [Oliver Tappe <zooey@hirschkaefer.de>]
1473 *) New make target "install_html_docs" installs HTML renditions of the
1475 [Oliver Tappe <zooey@hirschkaefer.de>]
1477 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1478 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1479 support key and parameter generation and add initial key generation
1480 functionality for RSA.
1483 *) Add functions for main EVP_PKEY_method operations. The undocumented
1484 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1485 EVP_PKEY_{encrypt,decrypt}_old.
1488 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1489 key API, doesn't do much yet.
1492 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1493 public key algorithms. New option to openssl utility:
1494 "list-public-key-algorithms" to print out info.
1497 *) Implement the Supported Elliptic Curves Extension for
1498 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1501 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1502 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1505 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1506 utilities such as rsa, dsa, dsaparam etc except they process any key
1510 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1511 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1512 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1516 *) Initial support for pluggable public key ASN1.
1517 De-spaghettify the public key ASN1 handling. Move public and private
1518 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1519 algorithm specific handling to a single module within the relevant
1520 algorithm directory. Add functions to allow (near) opaque processing
1521 of public and private key structures.
1524 *) Implement the Supported Point Formats Extension for
1525 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1528 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1529 for the psk identity [hint] and the psk callback functions to the
1530 SSL_SESSION, SSL and SSL_CTX structure.
1533 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1537 SSL_CTX_use_psk_identity_hint
1538 SSL_get_psk_identity_hint
1539 SSL_get_psk_identity
1540 SSL_use_psk_identity_hint
1542 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1544 *) Add RFC 3161 compliant time stamp request creation, response generation
1545 and response verification functionality.
1546 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1548 *) Add initial support for TLS extensions, specifically for the server_name
1549 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1550 have new members for a host name. The SSL data structure has an
1551 additional member SSL_CTX *initial_ctx so that new sessions can be
1552 stored in that context to allow for session resumption, even after the
1553 SSL has been switched to a new SSL_CTX in reaction to a client's
1554 server_name extension.
1556 New functions (subject to change):
1558 SSL_get_servername()
1559 SSL_get_servername_type()
1562 New CTRL codes and macros (subject to change):
1564 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1565 - SSL_CTX_set_tlsext_servername_callback()
1566 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1567 - SSL_CTX_set_tlsext_servername_arg()
1568 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1570 openssl s_client has a new '-servername ...' option.
1572 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1573 '-key2 ...', '-servername_fatal' (subject to change). This allows
1574 testing the HostName extension for a specific single host name ('-cert'
1575 and '-key' remain fallbacks for handshakes without HostName
1576 negotiation). If the unrecogninzed_name alert has to be sent, this by
1577 default is a warning; it becomes fatal with the '-servername_fatal'
1580 [Peter Sylvester, Remy Allais, Christophe Renou]
1582 *) Whirlpool hash implementation is added.
1585 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1586 bn(64,32). Because of instruction set limitations it doesn't have
1587 any negative impact on performance. This was done mostly in order
1588 to make it possible to share assembler modules, such as bn_mul_mont
1589 implementations, between 32- and 64-bit builds without hassle.
1592 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1593 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1597 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1598 dedicated Montgomery multiplication procedure, is introduced.
1599 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1600 "64-bit" performance on certain 32-bit targets.
1603 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1604 in SSL structures. New SSL ctrl to set maximum send fragment size.
1605 Save memory by seeting the I/O buffer sizes dynamically instead of
1606 using the maximum available value.
1609 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1610 in addition to the text details.
1613 *) Very, very preliminary EXPERIMENTAL support for printing of general
1614 ASN1 structures. This currently produces rather ugly output and doesn't
1615 handle several customised structures at all.
1618 *) Integrated support for PVK file format and some related formats such
1619 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1620 these in the 'rsa' and 'dsa' utilities.
1623 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1626 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1627 place for the (very old) "NETSCAPE" format certificates which are now
1628 handled using new ASN1 code equivalents.
1631 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1632 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1633 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1636 *) Modify CRL distribution points extension code to print out previously
1637 unsupported fields. Enhance extension setting code to allow setting of
1641 *) Add print and set support for Issuing Distribution Point CRL extension.
1644 *) Change 'Configure' script to enable Camellia by default.
1647 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1649 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1650 Thanks to Antonio Martin, Enterprise Secure Access Research and
1651 Development, Cisco Systems, Inc. for discovering this bug and
1652 preparing a fix. (CVE-2012-0050)
1655 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1657 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1658 of the Vaudenay padding oracle attack on CBC mode encryption
1659 which enables an efficient plaintext recovery attack against
1660 the OpenSSL implementation of DTLS. Their attack exploits timing
1661 differences arising during decryption processing. A research
1662 paper describing this attack can be found at:
1663 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1664 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1665 Security Group at Royal Holloway, University of London
1666 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1667 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1668 for preparing the fix. (CVE-2011-4108)
1669 [Robin Seggelmann, Michael Tuexen]
1671 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1672 [Ben Laurie, Kasper <ekasper@google.com>]
1674 *) Clear bytes used for block padding of SSL 3.0 records.
1676 [Adam Langley (Google)]
1678 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1679 Kadianakis <desnacked@gmail.com> for discovering this issue and
1680 Adam Langley for preparing the fix. (CVE-2011-4619)
1681 [Adam Langley (Google)]
1683 *) Prevent malformed RFC3779 data triggering an assertion failure.
1684 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1685 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1686 [Rob Austein <sra@hactrn.net>]
1688 *) Fix ssl_ciph.c set-up race.
1689 [Adam Langley (Google)]
1691 *) Fix spurious failures in ecdsatest.c.
1692 [Emilia Käsper (Google)]
1694 *) Fix the BIO_f_buffer() implementation (which was mixing different
1695 interpretations of the '..._len' fields).
1696 [Adam Langley (Google)]
1698 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1699 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1700 threads won't reuse the same blinding coefficients.
1702 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1703 lock to call BN_BLINDING_invert_ex, and avoids one use of
1704 BN_BLINDING_update for each BN_BLINDING structure (previously,
1705 the last update always remained unused).
1706 [Emilia Käsper (Google)]
1708 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1709 for multi-threaded use of ECDH.
1710 [Adam Langley (Google)]
1712 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1715 *) Add protection against ECDSA timing attacks as mentioned in the paper
1716 by Billy Bob Brumley and Nicola Tuveri, see:
1718 http://eprint.iacr.org/2011/232.pdf
1720 [Billy Bob Brumley and Nicola Tuveri]
1722 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1724 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1725 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1727 *) Fix bug in string printing code: if *any* escaping is enabled we must
1728 escape the escape character (backslash) or the resulting string is
1732 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1734 *) Disable code workaround for ancient and obsolete Netscape browsers
1735 and servers: an attacker can use it in a ciphersuite downgrade attack.
1736 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1739 *) Fixed J-PAKE implementation error, originally discovered by
1740 Sebastien Martini, further info and confirmation from Stefan
1741 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1744 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1746 *) Fix extension code to avoid race conditions which can result in a buffer
1747 overrun vulnerability: resumed sessions must not be modified as they can
1748 be shared by multiple threads. CVE-2010-3864
1751 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1754 *) Don't reencode certificate when calculating signature: cache and use
1755 the original encoding instead. This makes signature verification of
1756 some broken encodings work correctly.
1759 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1760 is also one of the inputs.
1761 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1763 *) Don't repeatedly append PBE algorithms to table if they already exist.
1764 Sort table on each new add. This effectively makes the table read only
1765 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1769 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1771 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1774 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1775 access or freeing data twice (CVE-2010-0742)
1776 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1778 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1779 common in certificates and some applications which only call
1780 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1784 Reduce copying into .apps and .test in makevms.com
1785 Don't try to use blank CA certificate in CA.com
1786 Allow use of C files from original directories in maketests.com
1787 [Steven M. Schweda" <sms@antinode.info>]
1789 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1791 *) When rejecting SSL/TLS records due to an incorrect version number, never
1792 update s->server with a new major version number. As of
1793 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1794 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1795 the previous behavior could result in a read attempt at NULL when
1796 receiving specific incorrect SSL/TLS records once record payload
1797 protection is active. (CVE-2010-0740)
1798 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1800 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1801 could be crashed if the relevant tables were not present (e.g. chrooted).
1802 [Tomas Hoger <thoger@redhat.com>]
1804 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1806 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1807 [Martin Olsson, Neel Mehta]
1809 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1810 accommodate for stack sorting, always a write lock!).
1813 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1814 excessive delays in the RAND_poll(): over a minute. As a workaround
1815 include a time check in the inner Heap32Next loop too.
1818 *) The code that handled flushing of data in SSL/TLS originally used the
1819 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1820 the problem outlined in PR#1949. The fix suggested there however can
1821 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1822 of Apache). So instead simplify the code to flush unconditionally.
1823 This should be fine since flushing with no data to flush is a no op.
1826 *) Handle TLS versions 2.0 and later properly and correctly use the
1827 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1828 off ancient servers have a habit of sticking around for a while...
1831 *) Modify compression code so it frees up structures without using the
1832 ex_data callbacks. This works around a problem where some applications
1833 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1834 restarting) then use compression (e.g. SSL with compression) later.
1835 This results in significant per-connection memory leaks and
1836 has caused some security issues including CVE-2008-1678 and
1840 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1841 change when encrypting or decrypting.
1844 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1845 connect and renegotiate with servers which do not support RI.
1846 Until RI is more widely deployed this option is enabled by default.
1849 *) Add "missing" ssl ctrls to clear options and mode.
1852 *) If client attempts to renegotiate and doesn't support RI respond with
1853 a no_renegotiation alert as required by RFC5746. Some renegotiating
1854 TLS clients will continue a connection gracefully when they receive
1855 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1856 waiting for a server hello which it will never receive. Now we treat a
1857 received no_renegotiation alert as a fatal error. This is because
1858 applications requesting a renegotiation might well expect it to succeed
1859 and would have no code in place to handle the server denying it so the
1860 only safe thing to do is to terminate the connection.
1863 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1864 peer supports secure renegotiation and 0 otherwise. Print out peer
1865 renegotiation support in s_client/s_server.
1868 *) Replace the highly broken and deprecated SPKAC certification method with
1869 the updated NID creation version. This should correctly handle UTF8.
1872 *) Implement RFC5746. Re-enable renegotiation but require the extension
1873 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1874 turns out to be a bad idea. It has been replaced by
1875 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1876 SSL_CTX_set_options(). This is really not recommended unless you
1877 know what you are doing.
1878 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1880 *) Fixes to stateless session resumption handling. Use initial_ctx when
1881 issuing and attempting to decrypt tickets in case it has changed during
1882 servername handling. Use a non-zero length session ID when attempting
1883 stateless session resumption: this makes it possible to determine if
1884 a resumption has occurred immediately after receiving server hello
1885 (several places in OpenSSL subtly assume this) instead of later in
1889 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1890 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1891 fixes for a few places where the return code is not checked
1893 [Julia Lawall <julia@diku.dk>]
1895 *) Add --strict-warnings option to Configure script to include devteam
1896 warnings in other configurations.
1899 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1900 makes it possible to install openssl libraries in locations which
1901 have names other than "lib", for example "/usr/lib64" which some
1903 [Steve Henson, based on patch from Jeremy Utley]
1905 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1906 X690 8.9.12 and can produce some misleading textual output of OIDs.
1907 [Steve Henson, reported by Dan Kaminsky]
1909 *) Delete MD2 from algorithm tables. This follows the recommendation in
1910 several standards that it is not used in new applications due to
1911 several cryptographic weaknesses. For binary compatibility reasons
1912 the MD2 API is still compiled in by default.
1915 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1919 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1920 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1922 [Guenter <lists@gknw.net>]
1924 *) Fix the server certificate chain building code to use X509_verify_cert(),
1925 it used to have an ad-hoc builder which was unable to cope with anything
1926 other than a simple chain.
1927 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1929 *) Don't check self signed certificate signatures in X509_verify_cert()
1930 by default (a flag can override this): it just wastes time without
1931 adding any security. As a useful side effect self signed root CAs
1932 with non-FIPS digests are now usable in FIPS mode.
1935 *) In dtls1_process_out_of_seq_message() the check if the current message
1936 is already buffered was missing. For every new message was memory
1937 allocated, allowing an attacker to perform an denial of service attack
1938 with sending out of seq handshake messages until there is no memory
1939 left. Additionally every future messege was buffered, even if the
1940 sequence number made no sense and would be part of another handshake.
1941 So only messages with sequence numbers less than 10 in advance will be
1942 buffered. (CVE-2009-1378)
1943 [Robin Seggelmann, discovered by Daniel Mentz]
1945 *) Records are buffered if they arrive with a future epoch to be
1946 processed after finishing the corresponding handshake. There is
1947 currently no limitation to this buffer allowing an attacker to perform
1948 a DOS attack with sending records with future epochs until there is no
1949 memory left. This patch adds the pqueue_size() function to detemine
1950 the size of a buffer and limits the record buffer to 100 entries.
1952 [Robin Seggelmann, discovered by Daniel Mentz]
1954 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1955 parent structure is freed. (CVE-2009-1379)
1958 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1959 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1962 [Ilya O. <vrghost@gmail.com>]
1964 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1966 *) Disable renegotiation completely - this fixes a severe security
1967 problem (CVE-2009-3555) at the cost of breaking all
1968 renegotiation. Renegotiation can be re-enabled by setting
1969 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1970 run-time. This is really not recommended unless you know what
1974 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1976 *) Don't set val to NULL when freeing up structures, it is freed up by
1977 underlying code. If sizeof(void *) > sizeof(long) this can result in
1978 zeroing past the valid field. (CVE-2009-0789)
1979 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1981 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1982 checked correctly. This would allow some invalid signed attributes to
1983 appear to verify correctly. (CVE-2009-0591)
1984 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1986 *) Reject UniversalString and BMPString types with invalid lengths. This
1987 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1988 a legal length. (CVE-2009-0590)
1991 *) Set S/MIME signing as the default purpose rather than setting it
1992 unconditionally. This allows applications to override it at the store
1996 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1997 to handle some structures.
2000 *) Improve efficiency of mem_gets: don't search whole buffer each time
2002 [Jeremy Shapiro <jnshapir@us.ibm.com>]
2004 *) New -hex option for openssl rand.
2007 *) Print out UTF8String and NumericString when parsing ASN1.
2010 *) Support NumericString type for name components.
2013 *) Allow CC in the environment to override the automatically chosen
2014 compiler. Note that nothing is done to ensure flags work with the
2018 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2020 *) Properly check EVP_VerifyFinal() and similar return values
2022 [Ben Laurie, Bodo Moeller, Google Security Team]
2024 *) Enable TLS extensions by default.
2027 *) Allow the CHIL engine to be loaded, whether the application is
2028 multithreaded or not. (This does not release the developer from the
2029 obligation to set up the dynamic locking callbacks.)
2030 [Sander Temme <sander@temme.net>]
2032 *) Use correct exit code if there is an error in dgst command.
2033 [Steve Henson; problem pointed out by Roland Dirlewanger]
2035 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2036 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2039 *) Add experimental JPAKE support, including demo authentication in
2040 s_client and s_server.
2043 *) Set the comparison function in v3_addr_canonize().
2044 [Rob Austein <sra@hactrn.net>]
2046 *) Add support for XMPP STARTTLS in s_client.
2047 [Philip Paeps <philip@freebsd.org>]
2049 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2050 to ensure that even with this option, only ciphersuites in the
2051 server's preference list will be accepted. (Note that the option
2052 applies only when resuming a session, so the earlier behavior was
2053 just about the algorithm choice for symmetric cryptography.)
2056 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2058 *) Fix NULL pointer dereference if a DTLS server received
2059 ChangeCipherSpec as first record (CVE-2009-1386).
2062 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
2063 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2066 *) The fix in 0.9.8c that supposedly got rid of unsafe
2067 double-checked locking was incomplete for RSA blinding,
2068 addressing just one layer of what turns out to have been
2069 doubly unsafe triple-checked locking.
2071 So now fix this for real by retiring the MONT_HELPER macro
2072 in crypto/rsa/rsa_eay.c.
2074 [Bodo Moeller; problem pointed out by Marius Schilder]
2076 *) Various precautionary measures:
2078 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2080 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2081 (NB: This would require knowledge of the secret session ticket key
2082 to exploit, in which case you'd be SOL either way.)
2084 - Change bn_nist.c so that it will properly handle input BIGNUMs
2085 outside the expected range.
2087 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2090 [Neel Mehta, Bodo Moeller]
2092 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2093 the load fails. Useful for distros.
2094 [Ben Laurie and the FreeBSD team]
2096 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2099 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2102 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2104 This work was sponsored by Logica.
2107 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2108 keystores. Support for SSL/TLS client authentication too.
2109 Not compiled unless enable-capieng specified to Configure.
2111 This work was sponsored by Logica.
2114 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2115 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2116 attribute creation routines such as certifcate requests and PKCS#12
2120 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2122 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2123 handshake which could lead to a cilent crash as found using the
2124 Codenomicon TLS test suite (CVE-2008-1672)
2125 [Steve Henson, Mark Cox]
2127 *) Fix double free in TLS server name extensions which could lead to
2128 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2131 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2133 Clear the error queue to ensure that error entries left from
2134 older function calls do not interfere with the correct operation.
2135 [Lutz Jaenicke, Erik de Castro Lopo]
2137 *) Remove root CA certificates of commercial CAs:
2139 The OpenSSL project does not recommend any specific CA and does not
2140 have any policy with respect to including or excluding any CA.
2141 Therefore it does not make any sense to ship an arbitrary selection
2142 of root CA certificates with the OpenSSL software.
2145 *) RSA OAEP patches to fix two separate invalid memory reads.
2146 The first one involves inputs when 'lzero' is greater than
2147 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2148 before the beginning of from). The second one involves inputs where
2149 the 'db' section contains nothing but zeroes (there is a one-byte
2150 invalid read after the end of 'db').
2151 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2153 *) Partial backport from 0.9.9-dev:
2155 Introduce bn_mul_mont (dedicated Montgomery multiplication
2156 procedure) as a candidate for BIGNUM assembler implementation.
2157 While 0.9.9-dev uses assembler for various architectures, only
2158 x86_64 is available by default here in the 0.9.8 branch, and
2159 32-bit x86 is available through a compile-time setting.
2161 To try the 32-bit x86 assembler implementation, use Configure
2162 option "enable-montasm" (which exists only for this backport).
2164 As "enable-montasm" for 32-bit x86 disclaims code stability
2165 anyway, in this constellation we activate additional code
2166 backported from 0.9.9-dev for further performance improvements,
2167 namely BN_from_montgomery_word. (To enable this otherwise,
2168 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2170 [Andy Polyakov (backport partially by Bodo Moeller)]
2172 *) Add TLS session ticket callback. This allows an application to set
2173 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2174 values. This is useful for key rollover for example where several key
2175 sets may exist with different names.
2178 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2179 This was broken until now in 0.9.8 releases, such that the only way
2180 a registered ENGINE could be used (assuming it initialises
2181 successfully on the host) was to explicitly set it as the default
2182 for the relevant algorithms. This is in contradiction with 0.9.7
2183 behaviour and the documentation. With this fix, when an ENGINE is
2184 registered into a given algorithm's table of implementations, the
2185 'uptodate' flag is reset so that auto-discovery will be used next
2186 time a new context for that algorithm attempts to select an
2188 [Ian Lister (tweaked by Geoff Thorpe)]
2190 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2191 implemention in the following ways:
2193 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2196 Lack of BER streaming support means one pass streaming processing is
2197 only supported if data is detached: setting the streaming flag is
2198 ignored for embedded content.
2200 CMS support is disabled by default and must be explicitly enabled
2201 with the enable-cms configuration option.
2204 *) Update the GMP engine glue to do direct copies between BIGNUM and
2205 mpz_t when openssl and GMP use the same limb size. Otherwise the
2206 existing "conversion via a text string export" trick is still used.
2207 [Paul Sheer <paulsheer@gmail.com>]
2209 *) Zlib compression BIO. This is a filter BIO which compressed and
2210 uncompresses any data passed through it.
2213 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2214 RFC3394 compatible AES key wrapping.
2217 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2218 sets string data without copying. X509_ALGOR_set0() and
2219 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2220 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2221 from an X509_ATTRIBUTE structure optionally checking it occurs only
2222 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2226 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2227 to get the expected BN_FLG_CONSTTIME behavior.
2228 [Bodo Moeller (Google)]
2232 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2233 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2234 - added some more tests to do_tests.pl
2235 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2236 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2237 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2238 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2239 - various changes to netware.pl to enable gcc-cross builds on Win32
2241 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2242 - various changes to fix missing prototype warnings
2243 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2244 - added AES, WHIRLPOOL and CPUID assembler code to build files
2245 - added missing AES assembler make rules to mk1mf.pl
2246 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2247 [Guenter Knauf <eflash@gmx.net>]
2249 *) Implement certificate status request TLS extension defined in RFC3546.
2250 A client can set the appropriate parameters and receive the encoded
2251 OCSP response via a callback. A server can query the supplied parameters
2252 and set the encoded OCSP response in the callback. Add simplified examples
2253 to s_client and s_server.
2256 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2258 *) Fix various bugs:
2259 + Binary incompatibility of ssl_ctx_st structure
2260 + DTLS interoperation with non-compliant servers
2261 + Don't call get_session_cb() without proposed session
2262 + Fix ia64 assembler code
2263 [Andy Polyakov, Steve Henson]
2265 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2267 *) DTLS Handshake overhaul. There were longstanding issues with
2268 OpenSSL DTLS implementation, which were making it impossible for
2269 RFC 4347 compliant client to communicate with OpenSSL server.
2270 Unfortunately just fixing these incompatibilities would "cut off"
2271 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2272 server keeps tolerating non RFC compliant syntax. The opposite is
2273 not true, 0.9.8f client can not communicate with earlier server.
2274 This update even addresses CVE-2007-4995.
2277 *) Changes to avoid need for function casts in OpenSSL: some compilers
2278 (gcc 4.2 and later) reject their use.
2279 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2282 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2283 RFC4507bis. The encrypted ticket format is an encrypted encoded
2284 SSL_SESSION structure, that way new session features are automatically
2287 If a client application caches session in an SSL_SESSION structure
2288 support is transparent because tickets are now stored in the encoded
2291 The SSL_CTX structure automatically generates keys for ticket
2292 protection in servers so again support should be possible
2293 with no application modification.
2295 If a client or server wishes to disable RFC4507 support then the option
2296 SSL_OP_NO_TICKET can be set.
2298 Add a TLS extension debugging callback to allow the contents of any client
2299 or server extensions to be examined.
2301 This work was sponsored by Google.
2304 *) Add initial support for TLS extensions, specifically for the server_name
2305 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2306 have new members for a host name. The SSL data structure has an
2307 additional member SSL_CTX *initial_ctx so that new sessions can be
2308 stored in that context to allow for session resumption, even after the
2309 SSL has been switched to a new SSL_CTX in reaction to a client's
2310 server_name extension.
2312 New functions (subject to change):
2314 SSL_get_servername()
2315 SSL_get_servername_type()
2318 New CTRL codes and macros (subject to change):
2320 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2321 - SSL_CTX_set_tlsext_servername_callback()
2322 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2323 - SSL_CTX_set_tlsext_servername_arg()
2324 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2326 openssl s_client has a new '-servername ...' option.
2328 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2329 '-key2 ...', '-servername_fatal' (subject to change). This allows
2330 testing the HostName extension for a specific single host name ('-cert'
2331 and '-key' remain fallbacks for handshakes without HostName
2332 negotiation). If the unrecogninzed_name alert has to be sent, this by
2333 default is a warning; it becomes fatal with the '-servername_fatal'
2336 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2338 *) Add AES and SSE2 assembly language support to VC++ build.
2341 *) Mitigate attack on final subtraction in Montgomery reduction.
2344 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2345 (which previously caused an internal error).
2348 *) Squeeze another 10% out of IGE mode when in != out.
2351 *) AES IGE mode speedup.
2352 [Dean Gaudet (Google)]
2354 *) Add the Korean symmetric 128-bit cipher SEED (see
2355 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2356 add SEED ciphersuites from RFC 4162:
2358 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2359 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2360 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2361 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2363 To minimize changes between patchlevels in the OpenSSL 0.9.8
2364 series, SEED remains excluded from compilation unless OpenSSL
2365 is configured with 'enable-seed'.
2366 [KISA, Bodo Moeller]
2368 *) Mitigate branch prediction attacks, which can be practical if a
2369 single processor is shared, allowing a spy process to extract
2370 information. For detailed background information, see
2371 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2372 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2373 and Necessary Software Countermeasures"). The core of the change
2374 are new versions BN_div_no_branch() and
2375 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2376 respectively, which are slower, but avoid the security-relevant
2377 conditional branches. These are automatically called by BN_div()
2378 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2379 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2380 remove a conditional branch.
2382 BN_FLG_CONSTTIME is the new name for the previous
2383 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2384 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2385 in the exponent causes BN_mod_exp_mont() to use the alternative
2386 implementation in BN_mod_exp_mont_consttime().) The old name
2387 remains as a deprecated alias.
2389 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2390 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2391 constant-time implementations for more than just exponentiation.
2392 Here too the old name is kept as a deprecated alias.
2394 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2395 the BN_BLINDING structure gets an independent copy of the
2396 modulus. This means that the previous "BIGNUM *m" argument to
2397 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2398 essentially becomes "const BIGNUM *m", although we can't actually
2399 change this in the header file before 0.9.9. It allows
2400 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2401 enable BN_FLG_CONSTTIME.
2403 [Matthew D Wood (Intel Corp)]
2405 *) In the SSL/TLS server implementation, be strict about session ID
2406 context matching (which matters if an application uses a single
2407 external cache for different purposes). Previously,
2408 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2409 set. This did ensure strict client verification, but meant that,
2410 with applications using a single external cache for quite
2411 different requirements, clients could circumvent ciphersuite
2412 restrictions for a given session ID context by starting a session
2413 in a different context.
2416 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2417 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2418 authentication-only ciphersuites.
2421 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2422 not complete and could lead to a possible single byte overflow
2423 (CVE-2007-5135) [Ben Laurie]
2425 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2427 *) Since AES128 and AES256 (and similarly Camellia128 and
2428 Camellia256) share a single mask bit in the logic of
2429 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2430 kludge to work properly if AES128 is available and AES256 isn't
2431 (or if Camellia128 is available and Camellia256 isn't).
2434 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2435 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2436 When a point or a seed is encoded in a BIT STRING, we need to
2437 prevent the removal of trailing zero bits to get the proper DER
2438 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2439 of a NamedBitList, for which trailing 0 bits need to be removed.)
2442 *) Have SSL/TLS server implementation tolerate "mismatched" record
2443 protocol version while receiving ClientHello even if the
2444 ClientHello is fragmented. (The server can't insist on the
2445 particular protocol version it has chosen before the ServerHello
2446 message has informed the client about his choice.)
2449 *) Add RFC 3779 support.
2450 [Rob Austein for ARIN, Ben Laurie]
2452 *) Load error codes if they are not already present instead of using a
2453 static variable. This allows them to be cleanly unloaded and reloaded.
2454 Improve header file function name parsing.
2457 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2458 or CAPABILITY handshake as required by RFCs.
2461 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2463 *) Introduce limits to prevent malicious keys being able to
2464 cause a denial of service. (CVE-2006-2940)
2465 [Steve Henson, Bodo Moeller]
2467 *) Fix ASN.1 parsing of certain invalid structures that can result
2468 in a denial of service. (CVE-2006-2937) [Steve Henson]
2470 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2471 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2473 *) Fix SSL client code which could crash if connecting to a
2474 malicious SSLv2 server. (CVE-2006-4343)
2475 [Tavis Ormandy and Will Drewry, Google Security Team]
2477 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2478 match only those. Before that, "AES256-SHA" would be interpreted
2479 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2480 the same strength classification in 0.9.7h) as we currently only
2481 have a single AES bit in the ciphersuite description bitmap.
2482 That change, however, also applied to ciphersuite strings such as
2483 "RC4-MD5" that intentionally matched multiple ciphersuites --
2484 namely, SSL 2.0 ciphersuites in addition to the more common ones
2485 from SSL 3.0/TLS 1.0.
2487 So we change the selection algorithm again: Naming an explicit
2488 ciphersuite selects this one ciphersuite, and any other similar
2489 ciphersuite (same bitmap) from *other* protocol versions.
2490 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2491 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2493 Since SSL 2.0 does not have any ciphersuites for which the
2494 128/256 bit distinction would be relevant, this works for now.
2495 The proper fix will be to use different bits for AES128 and
2496 AES256, which would have avoided the problems from the beginning;
2497 however, bits are scarce, so we can only do this in a new release
2498 (not just a patchlevel) when we can change the SSL_CIPHER
2499 definition to split the single 'unsigned long mask' bitmap into
2500 multiple values to extend the available space.
2504 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2506 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2507 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2509 *) Add AES IGE and biIGE modes.
2512 *) Change the Unix randomness entropy gathering to use poll() when
2513 possible instead of select(), since the latter has some
2514 undesirable limitations.
2515 [Darryl Miles via Richard Levitte and Bodo Moeller]
2517 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2518 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2519 cannot be implicitly activated as part of, e.g., the "AES" alias.
2520 However, please upgrade to OpenSSL 0.9.9[-dev] for
2521 non-experimental use of the ECC ciphersuites to get TLS extension
2522 support, which is required for curve and point format negotiation
2523 to avoid potential handshake problems.
2526 *) Disable rogue ciphersuites:
2528 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2529 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2530 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2532 The latter two were purportedly from
2533 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2536 Also deactivate the remaining ciphersuites from
2537 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2538 unofficial, and the ID has long expired.
2541 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2542 dual-core machines) and other potential thread-safety issues.
2545 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2546 versions), which is now available for royalty-free use
2547 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2548 Also, add Camellia TLS ciphersuites from RFC 4132.
2550 To minimize changes between patchlevels in the OpenSSL 0.9.8
2551 series, Camellia remains excluded from compilation unless OpenSSL
2552 is configured with 'enable-camellia'.
2555 *) Disable the padding bug check when compression is in use. The padding
2556 bug check assumes the first packet is of even length, this is not
2557 necessarily true if compresssion is enabled and can result in false
2558 positives causing handshake failure. The actual bug test is ancient
2559 code so it is hoped that implementations will either have fixed it by
2560 now or any which still have the bug do not support compression.
2563 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2565 *) When applying a cipher rule check to see if string match is an explicit
2566 cipher suite and only match that one cipher suite if it is.
2569 *) Link in manifests for VC++ if needed.
2570 [Austin Ziegler <halostatue@gmail.com>]
2572 *) Update support for ECC-based TLS ciphersuites according to
2573 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2574 TLS extensions, which are supported starting with the 0.9.9
2575 branch, not in the OpenSSL 0.9.8 branch).
2578 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2579 opaque EVP_CIPHER_CTX handling.
2582 *) Fixes and enhancements to zlib compression code. We now only use
2583 "zlib1.dll" and use the default __cdecl calling convention on Win32
2584 to conform with the standards mentioned here:
2585 http://www.zlib.net/DLL_FAQ.txt
2586 Static zlib linking now works on Windows and the new --with-zlib-include
2587 --with-zlib-lib options to Configure can be used to supply the location
2588 of the headers and library. Gracefully handle case where zlib library
2592 *) Several fixes and enhancements to the OID generation code. The old code
2593 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2594 handle numbers larger than ULONG_MAX, truncated printing and had a
2595 non standard OBJ_obj2txt() behaviour.
2598 *) Add support for building of engines under engine/ as shared libraries
2599 under VC++ build system.
2602 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2603 Hopefully, we will not see any false combination of paths any more.
2606 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2608 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2609 (part of SSL_OP_ALL). This option used to disable the
2610 countermeasure against man-in-the-middle protocol-version
2611 rollback in the SSL 2.0 server implementation, which is a bad
2612 idea. (CVE-2005-2969)
2614 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2615 for Information Security, National Institute of Advanced Industrial
2616 Science and Technology [AIST], Japan)]
2618 *) Add two function to clear and return the verify parameter flags.
2621 *) Keep cipherlists sorted in the source instead of sorting them at
2622 runtime, thus removing the need for a lock.
2625 *) Avoid some small subgroup attacks in Diffie-Hellman.
2626 [Nick Mathewson and Ben Laurie]
2628 *) Add functions for well-known primes.
2631 *) Extended Windows CE support.
2632 [Satoshi Nakamura and Andy Polyakov]
2634 *) Initialize SSL_METHOD structures at compile time instead of during
2635 runtime, thus removing the need for a lock.
2638 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2639 attempting to decrypt each encrypted key in turn. Add support to
2643 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2645 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2648 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2651 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2652 key into the same file any more.
2655 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2658 *) Add -utf8 command line and config file option to 'ca'.
2659 [Stefan <stf@udoma.org]
2661 *) Removed the macro des_crypt(), as it seems to conflict with some
2662 libraries. Use DES_crypt().
2665 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2666 involves renaming the source and generated shared-libs for
2667 both. The engines will accept the corrected or legacy ids
2668 ('ncipher' and '4758_cca' respectively) when binding. NB,
2669 this only applies when building 'shared'.
2670 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2672 *) Add attribute functions to EVP_PKEY structure. Modify
2673 PKCS12_create() to recognize a CSP name attribute and
2674 use it. Make -CSP option work again in pkcs12 utility.
2677 *) Add new functionality to the bn blinding code:
2678 - automatic re-creation of the BN_BLINDING parameters after
2679 a fixed number of uses (currently 32)
2680 - add new function for parameter creation
2681 - introduce flags to control the update behaviour of the
2682 BN_BLINDING parameters
2683 - hide BN_BLINDING structure
2684 Add a second BN_BLINDING slot to the RSA structure to improve
2685 performance when a single RSA object is shared among several
2689 *) Add support for DTLS.
2690 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2692 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2693 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2696 *) Remove buggy and incompletet DH cert support from
2697 ssl/ssl_rsa.c and ssl/s3_both.c
2700 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2701 the apps/openssl applications.
2704 *) Compile clean with "-Wall -Wmissing-prototypes
2705 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2706 DEBUG_SAFESTACK must also be set.
2709 *) Change ./Configure so that certain algorithms can be disabled by default.
2710 The new counterpiece to "no-xxx" is "enable-xxx".
2712 The patented RC5 and MDC2 algorithms will now be disabled unless
2713 "enable-rc5" and "enable-mdc2", respectively, are specified.
2715 (IDEA remains enabled despite being patented. This is because IDEA
2716 is frequently required for interoperability, and there is no license
2717 fee for non-commercial use. As before, "no-idea" can be used to
2718 avoid this algorithm.)
2722 *) Add processing of proxy certificates (see RFC 3820). This work was
2723 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2724 EGEE (Enabling Grids for E-science in Europe).
2727 *) RC4 performance overhaul on modern architectures/implementations, such
2728 as Intel P4, IA-64 and AMD64.
2731 *) New utility extract-section.pl. This can be used specify an alternative
2732 section number in a pod file instead of having to treat each file as
2733 a separate case in Makefile. This can be done by adding two lines to the
2736 =for comment openssl_section:XXX
2738 The blank line is mandatory.
2742 *) New arguments -certform, -keyform and -pass for s_client and s_server
2743 to allow alternative format key and certificate files and passphrase
2747 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2748 update associated structures and add various utility functions.
2750 Add new policy related verify parameters, include policy checking in
2751 standard verify code. Enhance 'smime' application with extra parameters
2752 to support policy checking and print out.
2755 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2756 Nehemiah processors. These extensions support AES encryption in hardware
2757 as well as RNG (though RNG support is currently disabled).
2758 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2760 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2763 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2764 [Andy Polyakov and a number of other people]
2766 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2767 implementation contributed by IBM.
2768 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2770 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2771 exponent rather than 'unsigned long'. There is a corresponding change to
2772 the new 'rsa_keygen' element of the RSA_METHOD structure.
2773 [Jelte Jansen, Geoff Thorpe]
2775 *) Functionality for creating the initial serial number file is now
2776 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2778 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2779 number file to 1, which is bound to cause problems. To avoid
2780 the problems while respecting compatibility between different 0.9.7
2781 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2782 CA.pl for serial number initialization. With the new release 0.9.8,
2783 we can fix the problem directly in the 'ca' utility.)
2786 *) Reduced header interdepencies by declaring more opaque objects in
2787 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2788 give fewer recursive includes, which could break lazy source code - so
2789 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2790 developers should define this symbol when building and using openssl to
2791 ensure they track the recommended behaviour, interfaces, [etc], but
2792 backwards-compatible behaviour prevails when this isn't defined.
2795 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2798 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2799 This will generate a random key of the appropriate length based on the
2800 cipher context. The EVP_CIPHER can provide its own random key generation
2801 routine to support keys of a specific form. This is used in the des and
2802 3des routines to generate a key of the correct parity. Update S/MIME
2803 code to use new functions and hence generate correct parity DES keys.
2804 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2805 valid (weak or incorrect parity).
2808 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2809 as looking them up. This is useful when the verified structure may contain
2810 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2811 present unless the new PKCS7_NO_CRL flag is asserted.
2814 *) Extend ASN1 oid configuration module. It now additionally accepts the
2817 shortName = some long name, 1.2.3.4
2820 *) Reimplemented the BN_CTX implementation. There is now no more static
2821 limitation on the number of variables it can handle nor the depth of the
2822 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2823 information can now expand as required, and rather than having a single
2824 static array of bignums, BN_CTX now uses a linked-list of such arrays
2825 allowing it to expand on demand whilst maintaining the usefulness of
2826 BN_CTX's "bundling".
2829 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2830 to allow all RSA operations to function using a single BN_CTX.
2833 *) Preliminary support for certificate policy evaluation and checking. This
2834 is initially intended to pass the tests outlined in "Conformance Testing
2835 of Relying Party Client Certificate Path Processing Logic" v1.07.
2838 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2839 remained unused and not that useful. A variety of other little bignum
2840 tweaks and fixes have also been made continuing on from the audit (see
2844 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2845 associated ASN1, EVP and SSL functions and old ASN1 macros.
2848 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2849 and this should never fail. So the return value from the use of
2850 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2851 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2854 *) BN_CTX_get() should return zero-valued bignums, providing the same
2855 initialised value as BN_new().
2856 [Geoff Thorpe, suggested by Ulf Möller]
2858 *) Support for inhibitAnyPolicy certificate extension.
2861 *) An audit of the BIGNUM code is underway, for which debugging code is
2862 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2863 is considered valid when processing BIGNUMs, and causes execution to
2864 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2865 further steps are taken to deliberately pollute unused data in BIGNUM
2866 structures to try and expose faulty code further on. For now, openssl will
2867 (in its default mode of operation) continue to tolerate the inconsistent
2868 forms that it has tolerated in the past, but authors and packagers should
2869 consider trying openssl and their own applications when compiled with
2870 these debugging symbols defined. It will help highlight potential bugs in
2871 their own code, and will improve the test coverage for OpenSSL itself. At
2872 some point, these tighter rules will become openssl's default to improve
2873 maintainability, though the assert()s and other overheads will remain only
2874 in debugging configurations. See bn.h for more details.
2875 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2877 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2878 that can only be obtained through BN_CTX_new() (which implicitly
2879 initialises it). The presence of this function only made it possible
2880 to overwrite an existing structure (and cause memory leaks).
2883 *) Because of the callback-based approach for implementing LHASH as a
2884 template type, lh_insert() adds opaque objects to hash-tables and
2885 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2886 to clean up those corresponding objects before destroying the hash table
2887 (and losing the object pointers). So some over-zealous constifications in
2888 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2889 objects as "const" and the lh_doall[_arg] callback wrappers are not
2890 prototyped to have "const" restrictions on the object pointers they are
2891 given (and so aren't required to cast them away any more).
2894 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2895 (speed) prefers to use its own implementation. The two implementations
2896 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2897 its object type properly exposed (MS_TM) instead of casting to/from "char
2898 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2899 aren't necessarily the greatest nomenclatures - but this is what was used
2900 internally to the implementation so I've used that for now.
2903 *) Ensure that deprecated functions do not get compiled when
2904 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2905 the self-tests were still using deprecated key-generation functions so
2906 these have been updated also.
2909 *) Reorganise PKCS#7 code to separate the digest location functionality
2910 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2911 New function PKCS7_set_digest() to set the digest type for PKCS#7
2912 digestedData type. Add additional code to correctly generate the
2913 digestedData type and add support for this type in PKCS7 initialization
2917 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2918 structure of type "other".
2921 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2922 sure the loop does correctly stop and breaking ("division by zero")
2923 modulus operations are not performed. The (pre-generated) prime
2924 table crypto/bn/bn_prime.h was already correct, but it could not be
2925 re-generated on some platforms because of the "division by zero"
2926 situation in the script.
2927 [Ralf S. Engelschall]
2929 *) Update support for ECC-based TLS ciphersuites according to
2930 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2931 SHA-1 now is only used for "small" curves (where the
2932 representation of a field element takes up to 24 bytes); for
2933 larger curves, the field element resulting from ECDH is directly
2934 used as premaster secret.
2935 [Douglas Stebila (Sun Microsystems Laboratories)]
2937 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2938 curve secp160r1 to the tests.
2939 [Douglas Stebila (Sun Microsystems Laboratories)]
2941 *) Add the possibility to load symbols globally with DSO.
2942 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2944 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2945 control of the error stack.
2948 *) Add support for STORE in ENGINE.
2951 *) Add the STORE type. The intention is to provide a common interface
2952 to certificate and key stores, be they simple file-based stores, or
2953 HSM-type store, or LDAP stores, or...
2954 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2957 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2958 pass a list of arguments to any function as well as provide a way
2959 for a function to pass data back to the caller.
2962 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2963 works like BUF_strdup() but can be used to duplicate a portion of
2964 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2968 *) Add the function sk_find_ex() which works like sk_find(), but will
2969 return an index to an element even if an exact match couldn't be
2970 found. The index is guaranteed to point at the element where the
2971 searched-for key would be inserted to preserve sorting order.
2974 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2975 takes an extra flags argument for optional functionality. Currently,
2976 the following flags are defined:
2978 OBJ_BSEARCH_VALUE_ON_NOMATCH
2979 This one gets OBJ_bsearch_ex() to return a pointer to the first
2980 element where the comparing function returns a negative or zero
2983 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2984 This one gets OBJ_bsearch_ex() to return a pointer to the first
2985 element where the comparing function returns zero. This is useful
2986 if there are more than one element where the comparing function
2990 *) Make it possible to create self-signed certificates with 'openssl ca'
2991 in such a way that the self-signed certificate becomes part of the
2992 CA database and uses the same mechanisms for serial number generation
2993 as all other certificate signing. The new flag '-selfsign' enables
2994 this functionality. Adapt CA.sh and CA.pl.in.
2997 *) Add functionality to check the public key of a certificate request
2998 against a given private. This is useful to check that a certificate
2999 request can be signed by that key (self-signing).
3002 *) Make it possible to have multiple active certificates with the same
3003 subject in the CA index file. This is done only if the keyword
3004 'unique_subject' is set to 'no' in the main CA section (default
3005 if 'CA_default') of the configuration file. The value is saved
3006 with the database itself in a separate index attribute file,
3007 named like the index file with '.attr' appended to the name.
3010 *) Generate muti valued AVAs using '+' notation in config files for
3014 *) Support for nameConstraints certificate extension.
3017 *) Support for policyConstraints certificate extension.
3020 *) Support for policyMappings certificate extension.
3023 *) Make sure the default DSA_METHOD implementation only uses its
3024 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3025 and change its own handlers to be NULL so as to remove unnecessary
3026 indirection. This lets alternative implementations fallback to the
3027 default implementation more easily.
3030 *) Support for directoryName in GeneralName related extensions
3034 *) Make it possible to link applications using Makefile.shared.
3035 Make that possible even when linking against static libraries!
3038 *) Support for single pass processing for S/MIME signing. This now
3039 means that S/MIME signing can be done from a pipe, in addition
3040 cleartext signing (multipart/signed type) is effectively streaming
3041 and the signed data does not need to be all held in memory.
3043 This is done with a new flag PKCS7_STREAM. When this flag is set
3044 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3045 is done after the data is output (and digests calculated) in
3046 SMIME_write_PKCS7().
3049 *) Add full support for -rpath/-R, both in shared libraries and
3050 applications, at least on the platforms where it's known how
3054 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3055 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3056 will now compute a table of multiples of the generator that
3057 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3058 faster (notably in the case of a single point multiplication,
3059 scalar * generator).
3060 [Nils Larsch, Bodo Moeller]
3062 *) IPv6 support for certificate extensions. The various extensions
3063 which use the IP:a.b.c.d can now take IPv6 addresses using the
3064 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3068 *) Added an ENGINE that implements RSA by performing private key
3069 exponentiations with the GMP library. The conversions to and from
3070 GMP's mpz_t format aren't optimised nor are any montgomery forms
3071 cached, and on x86 it appears OpenSSL's own performance has caught up.
3072 However there are likely to be other architectures where GMP could
3073 provide a boost. This ENGINE is not built in by default, but it can be
3074 specified at Configure time and should be accompanied by the necessary
3075 linker additions, eg;
3076 ./config -DOPENSSL_USE_GMP -lgmp
3079 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3080 testing availability of engines with "-t" - the old behaviour is
3081 produced by increasing the feature's verbosity with "-tt".
3084 *) ECDSA routines: under certain error conditions uninitialized BN objects
3085 could be freed. Solution: make sure initialization is performed early
3086 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3090 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3091 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3092 software implementations. For DSA and DH, parameter generation can
3093 also be overriden by providing the appropriate method callbacks.
3096 *) Change the "progress" mechanism used in key-generation and
3097 primality testing to functions that take a new BN_GENCB pointer in
3098 place of callback/argument pairs. The new API functions have "_ex"
3099 postfixes and the older functions are reimplemented as wrappers for
3100 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3101 declarations of the old functions to help (graceful) attempts to
3102 migrate to the new functions. Also, the new key-generation API
3103 functions operate on a caller-supplied key-structure and return
3104 success/failure rather than returning a key or NULL - this is to
3105 help make "keygen" another member function of RSA_METHOD etc.
3107 Example for using the new callback interface:
3109 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3113 BN_GENCB_set(&my_cb, my_callback, my_arg);
3115 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3116 /* For the meaning of a, b in calls to my_callback(), see the
3117 * documentation of the function that calls the callback.
3118 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3119 * my_callback should return 1 if it wants BN_is_prime_ex()
3120 * to continue, or 0 to stop.
3125 *) Change the ZLIB compression method to be stateful, and make it
3126 available to TLS with the number defined in
3127 draft-ietf-tls-compression-04.txt.
3130 *) Add the ASN.1 structures and functions for CertificatePair, which
3131 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3133 CertificatePair ::= SEQUENCE {
3134 forward [0] Certificate OPTIONAL,
3135 reverse [1] Certificate OPTIONAL,
3136 -- at least one of the pair shall be present -- }
3138 Also implement the PEM functions to read and write certificate
3139 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3141 This needed to be defined, mostly for the sake of the LDAP
3142 attribute crossCertificatePair, but may prove useful elsewhere as
3146 *) Make it possible to inhibit symlinking of shared libraries in
3147 Makefile.shared, for Cygwin's sake.
3150 *) Extend the BIGNUM API by creating a function
3151 void BN_set_negative(BIGNUM *a, int neg);
3152 and a macro that behave like
3153 int BN_is_negative(const BIGNUM *a);
3155 to avoid the need to access 'a->neg' directly in applications.
3158 *) Implement fast modular reduction for pseudo-Mersenne primes
3159 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3160 EC_GROUP_new_curve_GFp() will now automatically use this
3162 [Nils Larsch <nla@trustcenter.de>]
3164 *) Add new lock type (CRYPTO_LOCK_BN).
3167 *) Change the ENGINE framework to automatically load engines
3168 dynamically from specific directories unless they could be
3169 found to already be built in or loaded. Move all the
3170 current engines except for the cryptodev one to a new
3172 The engines in engines/ are built as shared libraries if
3173 the "shared" options was given to ./Configure or ./config.
3174 Otherwise, they are inserted in libcrypto.a.
3175 /usr/local/ssl/engines is the default directory for dynamic
3176 engines, but that can be overriden at configure time through
3177 the usual use of --prefix and/or --openssldir, and at run
3178 time with the environment variable OPENSSL_ENGINES.
3179 [Geoff Thorpe and Richard Levitte]
3181 *) Add Makefile.shared, a helper makefile to build shared
3182 libraries. Addapt Makefile.org.
3185 *) Add version info to Win32 DLLs.
3186 [Peter 'Luna' Runestig" <peter@runestig.com>]
3188 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3189 can be added using this API to created arbitrary PKCS#12
3190 files while avoiding the low level API.
3192 New options to PKCS12_create(), key or cert can be NULL and
3193 will then be omitted from the output file. The encryption
3194 algorithm NIDs can be set to -1 for no encryption, the mac
3195 iteration count can be set to 0 to omit the mac.
3197 Enhance pkcs12 utility by making the -nokeys and -nocerts
3198 options work when creating a PKCS#12 file. New option -nomac
3199 to omit the mac, NONE can be set for an encryption algorithm.
3200 New code is modified to use the enhanced PKCS12_create()
3201 instead of the low level API.
3204 *) Extend ASN1 encoder to support indefinite length constructed
3205 encoding. This can output sequences tags and octet strings in
3206 this form. Modify pk7_asn1.c to support indefinite length
3207 encoding. This is experimental and needs additional code to
3208 be useful, such as an ASN1 bio and some enhanced streaming
3211 Extend template encode functionality so that tagging is passed
3212 down to the template encoder.
3215 *) Let 'openssl req' fail if an argument to '-newkey' is not
3216 recognized instead of using RSA as a default.
3219 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3220 As these are not official, they are not included in "ALL";
3221 the "ECCdraft" ciphersuite group alias can be used to select them.
3222 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3224 *) Add ECDH engine support.
3225 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3227 *) Add ECDH in new directory crypto/ecdh/.
3228 [Douglas Stebila (Sun Microsystems Laboratories)]
3230 *) Let BN_rand_range() abort with an error after 100 iterations
3231 without success (which indicates a broken PRNG).
3234 *) Change BN_mod_sqrt() so that it verifies that the input value
3235 is really the square of the return value. (Previously,
3236 BN_mod_sqrt would show GIGO behaviour.)
3239 *) Add named elliptic curves over binary fields from X9.62, SECG,
3240 and WAP/WTLS; add OIDs that were still missing.
3242 [Sheueling Chang Shantz and Douglas Stebila
3243 (Sun Microsystems Laboratories)]
3245 *) Extend the EC library for elliptic curves over binary fields
3246 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3249 EC_GF2m_simple_method
3253 EC_GROUP_new_curve_GF2m
3254 EC_GROUP_set_curve_GF2m
3255 EC_GROUP_get_curve_GF2m
3256 EC_POINT_set_affine_coordinates_GF2m
3257 EC_POINT_get_affine_coordinates_GF2m
3258 EC_POINT_set_compressed_coordinates_GF2m
3260 Point compression for binary fields is disabled by default for
3261 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3264 As binary polynomials are represented as BIGNUMs, various members
3265 of the EC_GROUP and EC_POINT data structures can be shared
3266 between the implementations for prime fields and binary fields;
3267 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3268 are essentially identical to their ..._GFp counterparts.
3269 (For simplicity, the '..._GFp' prefix has been dropped from
3270 various internal method names.)
3272 An internal 'field_div' method (similar to 'field_mul' and
3273 'field_sqr') has been added; this is used only for binary fields.
3275 [Sheueling Chang Shantz and Douglas Stebila
3276 (Sun Microsystems Laboratories)]
3278 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3279 through methods ('mul', 'precompute_mult').
3281 The generic implementations (now internally called 'ec_wNAF_mul'
3282 and 'ec_wNAF_precomputed_mult') remain the default if these
3283 methods are undefined.
3285 [Sheueling Chang Shantz and Douglas Stebila
3286 (Sun Microsystems Laboratories)]
3288 *) New function EC_GROUP_get_degree, which is defined through
3289 EC_METHOD. For curves over prime fields, this returns the bit
3290 length of the modulus.
3292 [Sheueling Chang Shantz and Douglas Stebila
3293 (Sun Microsystems Laboratories)]
3295 *) New functions EC_GROUP_dup, EC_POINT_dup.
3296 (These simply call ..._new and ..._copy).
3298 [Sheueling Chang Shantz and Douglas Stebila
3299 (Sun Microsystems Laboratories)]
3301 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3302 Polynomials are represented as BIGNUMs (where the sign bit is not
3303 used) in the following functions [macros]:
3306 BN_GF2m_sub [= BN_GF2m_add]
3307 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3308 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3309 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3311 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3312 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3313 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3314 BN_GF2m_cmp [= BN_ucmp]
3316 (Note that only the 'mod' functions are actually for fields GF(2^m).
3317 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3319 For some functions, an the irreducible polynomial defining a
3320 field can be given as an 'unsigned int[]' with strictly
3321 decreasing elements giving the indices of those bits that are set;
3322 i.e., p[] represents the polynomial
3323 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3325 p[0] > p[1] > ... > p[k] = 0.
3326 This applies to the following functions:
3331 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3332 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3334 BN_GF2m_mod_sqrt_arr
3335 BN_GF2m_mod_solve_quad_arr
3339 Conversion can be performed by the following functions:
3344 bntest.c has additional tests for binary polynomial arithmetic.
3346 Two implementations for BN_GF2m_mod_div() are available.
3347 The default algorithm simply uses BN_GF2m_mod_inv() and
3348 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3349 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3350 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3352 [Sheueling Chang Shantz and Douglas Stebila
3353 (Sun Microsystems Laboratories)]
3355 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3356 functionality is disabled at compile-time.
3357 [Douglas Stebila <douglas.stebila@sun.com>]
3359 *) Change default behaviour of 'openssl asn1parse' so that more
3360 information is visible when viewing, e.g., a certificate:
3362 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3363 mode the content of non-printable OCTET STRINGs is output in a
3364 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3365 avoid the appearance of a printable string.
3366 [Nils Larsch <nla@trustcenter.de>]
3368 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3370 EC_GROUP_set_asn1_flag()
3371 EC_GROUP_get_asn1_flag()
3372 EC_GROUP_set_point_conversion_form()
3373 EC_GROUP_get_point_conversion_form()
3374 These control ASN1 encoding details:
3375 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3376 has been set to OPENSSL_EC_NAMED_CURVE.
3377 - Points are encoded in uncompressed form by default; options for
3378 asn1_for are as for point2oct, namely
3379 POINT_CONVERSION_COMPRESSED
3380 POINT_CONVERSION_UNCOMPRESSED
3381 POINT_CONVERSION_HYBRID
3383 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3386 EC_GROUP_get0_seed()
3387 EC_GROUP_get_seed_len()
3388 This is used only for ASN1 purposes (so far).
3389 [Nils Larsch <nla@trustcenter.de>]
3391 *) Add 'field_type' member to EC_METHOD, which holds the NID
3392 of the appropriate field type OID. The new function
3393 EC_METHOD_get_field_type() returns this value.
3394 [Nils Larsch <nla@trustcenter.de>]
3399 EC_POINT_point2hex()
3400 EC_POINT_hex2point()
3401 providing useful interfaces to EC_POINT_point2oct() and
3402 EC_POINT_oct2point().
3403 [Nils Larsch <nla@trustcenter.de>]
3405 *) Change internals of the EC library so that the functions
3406 EC_GROUP_set_generator()
3407 EC_GROUP_get_generator()
3408 EC_GROUP_get_order()
3409 EC_GROUP_get_cofactor()
3410 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3411 to methods, which would lead to unnecessary code duplication when
3412 adding different types of curves.
3413 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3415 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3416 arithmetic, and such that modified wNAFs are generated
3417 (which avoid length expansion in many cases).
3420 *) Add a function EC_GROUP_check_discriminant() (defined via
3421 EC_METHOD) that verifies that the curve discriminant is non-zero.
3423 Add a function EC_GROUP_check() that makes some sanity tests
3424 on a EC_GROUP, its generator and order. This includes
3425 EC_GROUP_check_discriminant().
3426 [Nils Larsch <nla@trustcenter.de>]
3428 *) Add ECDSA in new directory crypto/ecdsa/.
3430 Add applications 'openssl ecparam' and 'openssl ecdsa'
3431 (these are based on 'openssl dsaparam' and 'openssl dsa').
3433 ECDSA support is also included in various other files across the
3434 library. Most notably,
3435 - 'openssl req' now has a '-newkey ecdsa:file' option;
3436 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3437 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3438 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3439 them suitable for ECDSA where domain parameters must be
3440 extracted before the specific public key;
3441 - ECDSA engine support has been added.
3442 [Nils Larsch <nla@trustcenter.de>]
3444 *) Include some named elliptic curves, and add OIDs from X9.62,
3445 SECG, and WAP/WTLS. Each curve can be obtained from the new
3447 EC_GROUP_new_by_curve_name(),
3448 and the list of available named curves can be obtained with
3449 EC_get_builtin_curves().
3450 Also add a 'curve_name' member to EC_GROUP objects, which can be
3452 EC_GROUP_set_curve_name()
3453 EC_GROUP_get_curve_name()
3454 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3456 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3457 was actually never needed) and in BN_mul(). The removal in BN_mul()
3458 required a small change in bn_mul_part_recursive() and the addition
3459 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3460 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3461 bn_sub_words() and bn_add_words() except they take arrays with
3465 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3467 *) Cleanse PEM buffers before freeing them since they may contain
3469 [Benjamin Bennett <ben@psc.edu>]
3471 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3472 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3473 authentication-only ciphersuites.
3476 *) Since AES128 and AES256 share a single mask bit in the logic of
3477 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3478 kludge to work properly if AES128 is available and AES256 isn't.
3481 *) Expand security boundary to match 1.1.1 module.
3484 *) Remove redundant features: hash file source, editing of test vectors
3485 modify fipsld to use external fips_premain.c signature.
3488 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3489 run algorithm test programs.
3492 *) Make algorithm test programs more tolerant of whitespace.
3495 *) Have SSL/TLS server implementation tolerate "mismatched" record
3496 protocol version while receiving ClientHello even if the
3497 ClientHello is fragmented. (The server can't insist on the
3498 particular protocol version it has chosen before the ServerHello
3499 message has informed the client about his choice.)
3502 *) Load error codes if they are not already present instead of using a
3503 static variable. This allows them to be cleanly unloaded and reloaded.
3506 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3508 *) Introduce limits to prevent malicious keys being able to
3509 cause a denial of service. (CVE-2006-2940)
3510 [Steve Henson, Bodo Moeller]
3512 *) Fix ASN.1 parsing of certain invalid structures that can result
3513 in a denial of service. (CVE-2006-2937) [Steve Henson]
3515 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3516 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3518 *) Fix SSL client code which could crash if connecting to a
3519 malicious SSLv2 server. (CVE-2006-4343)
3520 [Tavis Ormandy and Will Drewry, Google Security Team]
3522 *) Change ciphersuite string processing so that an explicit
3523 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3524 will no longer include "AES128-SHA"), and any other similar
3525 ciphersuite (same bitmap) from *other* protocol versions (so that
3526 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3527 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3528 changes from 0.9.8b and 0.9.8d.
3531 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3533 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3534 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3536 *) Change the Unix randomness entropy gathering to use poll() when
3537 possible instead of select(), since the latter has some
3538 undesirable limitations.
3539 [Darryl Miles via Richard Levitte and Bodo Moeller]
3541 *) Disable rogue ciphersuites:
3543 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3544 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3545 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3547 The latter two were purportedly from
3548 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3551 Also deactive the remaining ciphersuites from
3552 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3553 unofficial, and the ID has long expired.
3556 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3557 dual-core machines) and other potential thread-safety issues.
3560 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3562 *) Adapt fipsld and the build system to link against the validated FIPS
3563 module in FIPS mode.
3566 *) Fixes for VC++ 2005 build under Windows.
3569 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3570 from a Windows bash shell such as MSYS. It is autodetected from the
3571 "config" script when run from a VC++ environment. Modify standard VC++
3572 build to use fipscanister.o from the GNU make build.
3575 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3577 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3578 The value now differs depending on if you build for FIPS or not.
3579 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3580 safely run with a non-FIPSed libcrypto, as it may crash because of
3581 the difference induced by this change.
3584 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3586 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3587 (part of SSL_OP_ALL). This option used to disable the
3588 countermeasure against man-in-the-middle protocol-version
3589 rollback in the SSL 2.0 server implementation, which is a bad
3590 idea. (CVE-2005-2969)
3592 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3593 for Information Security, National Institute of Advanced Industrial
3594 Science and Technology [AIST], Japan)]
3596 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3597 mainly for FIPS compliance and not fully integrated at this stage.
3600 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3601 the exponentiation using a fixed-length exponent. (Otherwise,
3602 the information leaked through timing could expose the secret key
3603 after many signatures; cf. Bleichenbacher's attack on DSA with
3607 *) Make a new fixed-window mod_exp implementation the default for
3608 RSA, DSA, and DH private-key operations so that the sequence of
3609 squares and multiplies and the memory access pattern are
3610 independent of the particular secret key. This will mitigate
3611 cache-timing and potential related attacks.
3613 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3614 and this is automatically used by BN_mod_exp_mont() if the new flag
3615 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3616 will use this BN flag for private exponents unless the flag
3617 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3618 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3620 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3622 *) Change the client implementation for SSLv23_method() and
3623 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3624 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3625 (Previously, the SSL 2.0 backwards compatible Client Hello
3626 message format would be used even with SSL_OP_NO_SSLv2.)
3629 *) Add support for smime-type MIME parameter in S/MIME messages which some
3633 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3634 a threadsafe manner. Modify rsa code to use new function and add calls
3635 to dsa and dh code (which had race conditions before).
3638 *) Include the fixed error library code in the C error file definitions
3639 instead of fixing them up at runtime. This keeps the error code
3640 structures constant.
3643 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3645 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3648 *) Fixes for newer kerberos headers. NB: the casts are needed because
3649 the 'length' field is signed on one version and unsigned on another
3650 with no (?) obvious way to tell the difference, without these VC++
3651 complains. Also the "definition" of FAR (blank) is no longer included
3652 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3653 some needed definitions.
3656 *) Undo Cygwin change.
3659 *) Added support for proxy certificates according to RFC 3820.
3660 Because they may be a security thread to unaware applications,
3661 they must be explicitely allowed in run-time. See
3662 docs/HOWTO/proxy_certificates.txt for further information.
3665 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3667 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3668 server and client random values. Previously
3669 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3670 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3672 This change has negligible security impact because:
3674 1. Server and client random values still have 24 bytes of pseudo random
3677 2. Server and client random values are sent in the clear in the initial
3680 3. The master secret is derived using the premaster secret (48 bytes in
3681 size for static RSA ciphersuites) as well as client server and random
3684 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3687 [Stephen Henson, reported by UK NISCC]
3689 *) Use Windows randomness collection on Cygwin.
3692 *) Fix hang in EGD/PRNGD query when communication socket is closed
3693 prematurely by EGD/PRNGD.
3694 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3696 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3699 *) Back-port of selected performance improvements from development
3700 branch, as well as improved support for PowerPC platforms.
3703 *) Add lots of checks for memory allocation failure, error codes to indicate
3704 failure and freeing up memory if a failure occurs.
3705 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3707 *) Add new -passin argument to dgst.
3710 *) Perform some character comparisons of different types in X509_NAME_cmp:
3711 this is needed for some certificates that reencode DNs into UTF8Strings
3712 (in violation of RFC3280) and can't or wont issue name rollover
3716 *) Make an explicit check during certificate validation to see that
3717 the CA setting in each certificate on the chain is correct. As a
3718 side effect always do the following basic checks on extensions,
3719 not just when there's an associated purpose to the check:
3721 - if there is an unhandled critical extension (unless the user
3722 has chosen to ignore this fault)
3723 - if the path length has been exceeded (if one is set at all)
3724 - that certain extensions fit the associated purpose (if one has
3728 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3730 *) Avoid a race condition when CRLs are checked in a multi threaded
3731 environment. This would happen due to the reordering of the revoked
3732 entries during signature checking and serial number lookup. Now the
3733 encoding is cached and the serial number sort performed under a lock.
3734 Add new STACK function sk_is_sorted().
3737 *) Add Delta CRL to the extension code.
3740 *) Various fixes to s3_pkt.c so alerts are sent properly.
3741 [David Holmes <d.holmes@f5.com>]
3743 *) Reduce the chances of duplicate issuer name and serial numbers (in
3744 violation of RFC3280) using the OpenSSL certificate creation utilities.
3745 This is done by creating a random 64 bit value for the initial serial
3746 number when a serial number file is created or when a self signed
3747 certificate is created using 'openssl req -x509'. The initial serial
3748 number file is created using 'openssl x509 -next_serial' in CA.pl
3749 rather than being initialized to 1.
3752 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3754 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3755 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3756 [Joe Orton, Steve Henson]
3758 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3760 [Joe Orton, Steve Henson]
3762 *) Make it possible to have multiple active certificates with the same
3763 subject in the CA index file. This is done only if the keyword
3764 'unique_subject' is set to 'no' in the main CA section (default
3765 if 'CA_default') of the configuration file. The value is saved
3766 with the database itself in a separate index attribute file,
3767 named like the index file with '.attr' appended to the name.
3770 *) X509 verify fixes. Disable broken certificate workarounds when
3771 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3772 keyUsage extension present. Don't accept CRLs with unhandled critical
3773 extensions: since verify currently doesn't process CRL extensions this
3774 rejects a CRL with *any* critical extensions. Add new verify error codes
3778 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3779 A clarification of RFC2560 will require the use of OCTET STRINGs and
3780 some implementations cannot handle the current raw format. Since OpenSSL
3781 copies and compares OCSP nonces as opaque blobs without any attempt at
3782 parsing them this should not create any compatibility issues.
3785 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3786 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3787 this HMAC (and other) operations are several times slower than OpenSSL
3791 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3792 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3794 *) Use the correct content when signing type "other".
3797 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3799 *) Fix various bugs revealed by running the NISCC test suite:
3801 Stop out of bounds reads in the ASN1 code when presented with
3802 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3804 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3806 If verify callback ignores invalid public key errors don't try to check
3807 certificate signature with the NULL public key.
3811 *) New -ignore_err option in ocsp application to stop the server
3812 exiting on the first error in a request.
3815 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3816 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3820 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3821 extra data after the compression methods not only for TLS 1.0
3822 but also for SSL 3.0 (as required by the specification).
3823 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3825 *) Change X509_certificate_type() to mark the key as exported/exportable
3826 when it's 512 *bits* long, not 512 bytes.
3829 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3830 blocks during encryption.
3833 *) Various fixes to base64 BIO and non blocking I/O. On write
3834 flushes were not handled properly if the BIO retried. On read
3835 data was not being buffered properly and had various logic bugs.
3836 This also affects blocking I/O when the data being decoded is a
3840 *) Various S/MIME bugfixes and compatibility changes:
3841 output correct application/pkcs7 MIME type if
3842 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3843 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3844 of files as .eml work). Correctly handle very long lines in MIME
3848 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3850 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3851 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3852 a protocol version number mismatch like a decryption error
3853 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3856 *) Turn on RSA blinding by default in the default implementation
3857 to avoid a timing attack. Applications that don't want it can call
3858 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3859 They would be ill-advised to do so in most cases.
3860 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3862 *) Change RSA blinding code so that it works when the PRNG is not
3863 seeded (in this case, the secret RSA exponent is abused as
3864 an unpredictable seed -- if it is not unpredictable, there
3865 is no point in blinding anyway). Make RSA blinding thread-safe
3866 by remembering the creator's thread ID in rsa->blinding and
3867 having all other threads use local one-time blinding factors
3868 (this requires more computation than sharing rsa->blinding, but
3869 avoids excessive locking; and if an RSA object is not shared
3870 between threads, blinding will still be very fast).
3873 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3874 ENGINE as defaults for all supported algorithms irrespective of
3875 the 'flags' parameter. 'flags' is now honoured, so applications
3876 should make sure they are passing it correctly.
3879 *) Target "mingw" now allows native Windows code to be generated in
3880 the Cygwin environment as well as with the MinGW compiler.
3883 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3885 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3886 via timing by performing a MAC computation even if incorrrect
3887 block cipher padding has been found. This is a countermeasure
3888 against active attacks where the attacker has to distinguish
3889 between bad padding and a MAC verification error. (CVE-2003-0078)
3891 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3892 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3893 Martin Vuagnoux (EPFL, Ilion)]
3895 *) Make the no-err option work as intended. The intention with no-err
3896 is not to have the whole error stack handling routines removed from
3897 libcrypto, it's only intended to remove all the function name and
3898 reason texts, thereby removing some of the footprint that may not
3899 be interesting if those errors aren't displayed anyway.
3901 NOTE: it's still possible for any application or module to have it's
3902 own set of error texts inserted. The routines are there, just not
3903 used by default when no-err is given.
3906 *) Add support for FreeBSD on IA64.
3907 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3909 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3910 Kerberos function mit_des_cbc_cksum(). Before this change,
3911 the value returned by DES_cbc_cksum() was like the one from
3912 mit_des_cbc_cksum(), except the bytes were swapped.
3913 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3915 *) Allow an application to disable the automatic SSL chain building.
3916 Before this a rather primitive chain build was always performed in
3917 ssl3_output_cert_chain(): an application had no way to send the
3918 correct chain if the automatic operation produced an incorrect result.
3920 Now the chain builder is disabled if either:
3922 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3924 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3926 The reasoning behind this is that an application would not want the
3927 auto chain building to take place if extra chain certificates are
3928 present and it might also want a means of sending no additional
3929 certificates (for example the chain has two certificates and the
3933 *) Add the possibility to build without the ENGINE framework.
3934 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3936 *) Under Win32 gmtime() can return NULL: check return value in
3937 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3940 *) DSA routines: under certain error conditions uninitialized BN objects
3941 could be freed. Solution: make sure initialization is performed early
3942 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3943 Nils Larsch <nla@trustcenter.de> via PR#459)
3946 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3947 checked on reconnect on the client side, therefore session resumption
3948 could still fail with a "ssl session id is different" error. This
3949 behaviour is masked when SSL_OP_ALL is used due to
3950 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3951 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3952 followup to PR #377.
3955 *) IA-32 assembler support enhancements: unified ELF targets, support
3956 for SCO/Caldera platforms, fix for Cygwin shared build.
3959 *) Add support for FreeBSD on sparc64. As a consequence, support for
3960 FreeBSD on non-x86 processors is separate from x86 processors on
3961 the config script, much like the NetBSD support.
3962 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3964 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3966 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3969 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3970 code (06) was taken as the first octet of the session ID and the last
3971 octet was ignored consequently. As a result SSLv2 client side session
3972 caching could not have worked due to the session ID mismatch between
3974 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3978 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3979 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3983 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3984 seems that in spite of existing for more than a year, many application
3985 author have done nothing to provide the necessary callbacks, which
3986 means that this particular engine will not work properly anywhere.
3987 This is a very unfortunate situation which forces us, in the name
3988 of usability, to give the hw_ncipher.c a static lock, which is part
3990 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3991 appear in 0.9.8 or later. We EXPECT application authors to have
3992 dealt properly with this when 0.9.8 is released (unless we actually
3993 make such changes in the libcrypto locking code that changes will
3994 have to be made anyway).
3997 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3998 octets have been read, EOF or an error occurs. Without this change
3999 some truncated ASN1 structures will not produce an error.
4002 *) Disable Heimdal support, since it hasn't been fully implemented.
4003 Still give the possibility to force the use of Heimdal, but with
4004 warnings and a request that patches get sent to openssl-dev.
4007 *) Add the VC-CE target, introduce the WINCE sysname, and add
4008 INSTALL.WCE and appropriate conditionals to make it build.
4009 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4011 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
4012 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4013 edit numbers of the version.
4014 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4016 *) Introduce safe string copy and catenation functions
4017 (BUF_strlcpy() and BUF_strlcat()).
4018 [Ben Laurie (CHATS) and Richard Levitte]
4020 *) Avoid using fixed-size buffers for one-line DNs.
4021 [Ben Laurie (CHATS)]
4023 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4024 resizing buffers containing secrets, and use where appropriate.
4025 [Ben Laurie (CHATS)]
4027 *) Avoid using fixed size buffers for configuration file location.
4028 [Ben Laurie (CHATS)]
4030 *) Avoid filename truncation for various CA files.
4031 [Ben Laurie (CHATS)]
4033 *) Use sizeof in preference to magic numbers.
4034 [Ben Laurie (CHATS)]
4036 *) Avoid filename truncation in cert requests.
4037 [Ben Laurie (CHATS)]
4039 *) Add assertions to check for (supposedly impossible) buffer
4041 [Ben Laurie (CHATS)]
4043 *) Don't cache truncated DNS entries in the local cache (this could
4044 potentially lead to a spoofing attack).
4045 [Ben Laurie (CHATS)]
4047 *) Fix various buffers to be large enough for hex/decimal
4048 representations in a platform independent manner.
4049 [Ben Laurie (CHATS)]
4051 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4052 resizing buffers containing secrets, and use where appropriate.
4053 [Ben Laurie (CHATS)]
4055 *) Add BIO_indent() to avoid much slightly worrying code to do
4057 [Ben Laurie (CHATS)]
4059 *) Convert sprintf()/BIO_puts() to BIO_printf().
4060 [Ben Laurie (CHATS)]
4062 *) buffer_gets() could terminate with the buffer only half
4064 [Ben Laurie (CHATS)]
4066 *) Add assertions to prevent user-supplied crypto functions from
4067 overflowing internal buffers by having large block sizes, etc.
4068 [Ben Laurie (CHATS)]
4070 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4072 [Ben Laurie (CHATS)]
4074 *) Eliminate unused copy of key in RC4.
4075 [Ben Laurie (CHATS)]
4077 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4078 [Ben Laurie (CHATS)]
4080 *) Fix off-by-one error in EGD path.
4081 [Ben Laurie (CHATS)]
4083 *) If RANDFILE path is too long, ignore instead of truncating.
4084 [Ben Laurie (CHATS)]
4086 *) Eliminate unused and incorrectly sized X.509 structure
4088 [Ben Laurie (CHATS)]
4090 *) Eliminate unused and dangerous function knumber().
4091 [Ben Laurie (CHATS)]
4093 *) Eliminate unused and dangerous structure, KSSL_ERR.
4094 [Ben Laurie (CHATS)]
4096 *) Protect against overlong session ID context length in an encoded
4097 session object. Since these are local, this does not appear to be
4099 [Ben Laurie (CHATS)]
4101 *) Change from security patch (see 0.9.6e below) that did not affect
4102 the 0.9.6 release series:
4104 Remote buffer overflow in SSL3 protocol - an attacker could
4105 supply an oversized master key in Kerberos-enabled versions.
4107 [Ben Laurie (CHATS)]
4109 *) Change the SSL kerb5 codes to match RFC 2712.
4112 *) Make -nameopt work fully for req and add -reqopt switch.
4113 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4115 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4116 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4118 *) Make sure tests can be performed even if the corresponding algorithms
4119 have been removed entirely. This was also the last step to make
4120 OpenSSL compilable with DJGPP under all reasonable conditions.
4121 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4123 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4124 to allow version independent disabling of normally unselected ciphers,
4125 which may be activated as a side-effect of selecting a single cipher.
4127 (E.g., cipher list string "RSA" enables ciphersuites that are left
4128 out of "ALL" because they do not provide symmetric encryption.
4129 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4130 [Lutz Jaenicke, Bodo Moeller]
4132 *) Add appropriate support for separate platform-dependent build
4133 directories. The recommended way to make a platform-dependent
4134 build directory is the following (tested on Linux), maybe with
4137 # Place yourself outside of the OpenSSL source tree. In
4138 # this example, the environment variable OPENSSL_SOURCE
4139 # is assumed to contain the absolute OpenSSL source directory.
4140 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4141 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4142 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4143 mkdir -p `dirname $F`
4144 ln -s $OPENSSL_SOURCE/$F $F
4147 To be absolutely sure not to disturb the source tree, a "make clean"
4148 is a good thing. If it isn't successfull, don't worry about it,
4149 it probably means the source directory is very clean.
4152 *) Make sure any ENGINE control commands make local copies of string
4153 pointers passed to them whenever necessary. Otherwise it is possible
4154 the caller may have overwritten (or deallocated) the original string
4155 data when a later ENGINE operation tries to use the stored values.
4156 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4158 *) Improve diagnostics in file reading and command-line digests.
4159 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4161 *) Add AES modes CFB and OFB to the object database. Correct an
4162 error in AES-CFB decryption.
4165 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4166 allows existing EVP_CIPHER_CTX structures to be reused after
4167 calling EVP_*Final(). This behaviour is used by encryption
4168 BIOs and some applications. This has the side effect that
4169 applications must explicitly clean up cipher contexts with
4170 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4173 *) Check the values of dna and dnb in bn_mul_recursive before calling
4174 bn_mul_comba (a non zero value means the a or b arrays do not contain
4175 n2 elements) and fallback to bn_mul_normal if either is not zero.
4178 *) Fix escaping of non-ASCII characters when using the -subj option
4179 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4182 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4183 form for "surname", serialNumber has no short form.
4184 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4185 therefore remove "mail" short name for "internet 7".
4186 The OID for unique identifiers in X509 certificates is
4187 x500UniqueIdentifier, not uniqueIdentifier.
4188 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4191 *) Add an "init" command to the ENGINE config module and auto initialize
4192 ENGINEs. Without any "init" command the ENGINE will be initialized
4193 after all ctrl commands have been executed on it. If init=1 the
4194 ENGINE is initailized at that point (ctrls before that point are run
4195 on the uninitialized ENGINE and after on the initialized one). If
4196 init=0 then the ENGINE will not be iniatialized at all.
4199 *) Fix the 'app_verify_callback' interface so that the user-defined
4200 argument is actually passed to the callback: In the
4201 SSL_CTX_set_cert_verify_callback() prototype, the callback
4202 declaration has been changed from
4205 int (*cb)(X509_STORE_CTX *,void *);
4206 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4207 i=s->ctx->app_verify_callback(&ctx)
4208 has been changed into
4209 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4211 To update applications using SSL_CTX_set_cert_verify_callback(),
4212 a dummy argument can be added to their callback functions.
4213 [D. K. Smetters <smetters@parc.xerox.com>]
4215 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4216 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4218 *) Add and OPENSSL_LOAD_CONF define which will cause
4219 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4220 This allows older applications to transparently support certain
4221 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4222 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4223 load the config file and OPENSSL_add_all_algorithms_conf() which will
4224 always load it have also been added.
4227 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4228 Adjust NIDs and EVP layer.
4229 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4231 *) Config modules support in openssl utility.
4233 Most commands now load modules from the config file,
4234 though in a few (such as version) this isn't done
4235 because it couldn't be used for anything.
4237 In the case of ca and req the config file used is
4238 the same as the utility itself: that is the -config
4239 command line option can be used to specify an
4243 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4244 use "openssl_conf" if filename is NULL use default openssl config file.
4247 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4248 config section name. Add a new flag to tolerate a missing config file
4249 and move code to CONF_modules_load_file().
4252 *) Support for crypto accelerator cards from Accelerated Encryption
4253 Processing, www.aep.ie. (Use engine 'aep')
4254 The support was copied from 0.9.6c [engine] and adapted/corrected
4255 to work with the new engine framework.
4256 [AEP Inc. and Richard Levitte]
4258 *) Support for SureWare crypto accelerator cards from Baltimore
4259 Technologies. (Use engine 'sureware')
4260 The support was copied from 0.9.6c [engine] and adapted
4261 to work with the new engine framework.
4264 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4265 make the newer ENGINE framework commands for the CHIL engine work.
4266 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4268 *) Make it possible to produce shared libraries on ReliantUNIX.
4269 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4271 *) Add the configuration target debug-linux-ppro.
4272 Make 'openssl rsa' use the general key loading routines
4273 implemented in apps.c, and make those routines able to
4274 handle the key format FORMAT_NETSCAPE and the variant
4276 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4278 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4279 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4281 *) Add -keyform to rsautl, and document -engine.
4282 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4284 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4285 BIO_R_NO_SUCH_FILE error code rather than the generic
4286 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4289 *) Add new functions
4291 ERR_peek_last_error_line
4292 ERR_peek_last_error_line_data.
4293 These are similar to
projects / openssl.git / blob