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.
293 Changes between 1.0.1b and 1.0.1c [xx XXX xxxx]
295 *) Initialise tkeylen properly when encrypting CMS messages.
296 Thanks to Solar Designer of Openwall for reporting this issue.
299 *) In FIPS mode don't try to use composite ciphers as they are not
303 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
305 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
306 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
307 mean any application compiled against OpenSSL 1.0.0 headers setting
308 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
309 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
310 0x10000000L Any application which was previously compiled against
311 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
312 will need to be recompiled as a result. Letting be results in
313 inability to disable specifically TLS 1.1 and in client context,
314 in unlike event, limit maximum offered version to TLS 1.0 [see below].
317 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
318 disable just protocol X, but all protocols above X *if* there are
319 protocols *below* X still enabled. In more practical terms it means
320 that if application wants to disable TLS1.0 in favor of TLS1.1 and
321 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
322 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
326 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
328 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
329 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
330 in CRYPTO_realloc_clean.
332 Thanks to Tavis Ormandy, Google Security Team, for discovering this
333 issue and to Adam Langley <agl@chromium.org> for fixing it.
335 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
337 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
340 *) Workarounds for some broken servers that "hang" if a client hello
341 record length exceeds 255 bytes:
343 1. Do not use record version number > TLS 1.0 in initial client
344 hello: some (but not all) hanging servers will now work.
345 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
346 the number of ciphers sent in the client hello. This should be
347 set to an even number, such as 50, for example by passing:
348 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
349 Most broken servers should now work.
350 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
351 TLS 1.2 client support entirely.
354 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
357 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
359 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
360 STRING form instead of a DigestInfo.
363 *) The format used for MDC2 RSA signatures is inconsistent between EVP
364 and the RSA_sign/RSA_verify functions. This was made more apparent when
365 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
366 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
367 the correct format in RSA_verify so both forms transparently work.
370 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
371 STRING form instead of a DigestInfo.
374 *) Some servers which support TLS 1.0 can choke if we initially indicate
375 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
376 encrypted premaster secret. As a workaround use the maximum pemitted
377 client version in client hello, this should keep such servers happy
378 and still work with previous versions of OpenSSL.
381 *) Add support for TLS/DTLS heartbeats.
382 [Robin Seggelmann <seggelmann@fh-muenster.de>]
384 *) Add support for SCTP.
385 [Robin Seggelmann <seggelmann@fh-muenster.de>]
387 *) Improved PRNG seeding for VOS.
388 [Paul Green <Paul.Green@stratus.com>]
390 *) Extensive assembler packs updates, most notably:
392 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
393 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
394 - x86_64: bit-sliced AES implementation;
395 - ARM: NEON support, contemporary platforms optimizations;
396 - s390x: z196 support;
397 - *: GHASH and GF(2^m) multiplication implementations;
401 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
402 (removal of unnecessary code)
403 [Peter Sylvester <peter.sylvester@edelweb.fr>]
405 *) Add TLS key material exporter from RFC 5705.
408 *) Add DTLS-SRTP negotiation from RFC 5764.
411 *) Add Next Protocol Negotiation,
412 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
413 disabled with a no-npn flag to config or Configure. Code donated
415 [Adam Langley <agl@google.com> and Ben Laurie]
417 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
418 NIST-P256, NIST-P521, with constant-time single point multiplication on
419 typical inputs. Compiler support for the nonstandard type __uint128_t is
420 required to use this (present in gcc 4.4 and later, for 64-bit builds).
421 Code made available under Apache License version 2.0.
423 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
424 line to include this in your build of OpenSSL, and run "make depend" (or
425 "make update"). This enables the following EC_METHODs:
427 EC_GFp_nistp224_method()
428 EC_GFp_nistp256_method()
429 EC_GFp_nistp521_method()
431 EC_GROUP_new_by_curve_name() will automatically use these (while
432 EC_GROUP_new_curve_GFp() currently prefers the more flexible
434 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
436 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
437 all platforms. Move ssize_t definition from e_os.h to the public
438 header file e_os2.h as it now appears in public header file cms.h
441 *) New -sigopt option to the ca, req and x509 utilities. Additional
442 signature parameters can be passed using this option and in
446 *) Add RSA PSS signing function. This will generate and set the
447 appropriate AlgorithmIdentifiers for PSS based on those in the
448 corresponding EVP_MD_CTX structure. No application support yet.
451 *) Support for companion algorithm specific ASN1 signing routines.
452 New function ASN1_item_sign_ctx() signs a pre-initialised
453 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
454 the appropriate parameters.
457 *) Add new algorithm specific ASN1 verification initialisation function
458 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
459 handling will be the same no matter what EVP_PKEY_METHOD is used.
460 Add a PSS handler to support verification of PSS signatures: checked
461 against a number of sample certificates.
464 *) Add signature printing for PSS. Add PSS OIDs.
465 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
467 *) Add algorithm specific signature printing. An individual ASN1 method
468 can now print out signatures instead of the standard hex dump.
470 More complex signatures (e.g. PSS) can print out more meaningful
471 information. Include DSA version that prints out the signature
475 *) Password based recipient info support for CMS library: implementing
479 *) Split password based encryption into PBES2 and PBKDF2 functions. This
480 neatly separates the code into cipher and PBE sections and is required
481 for some algorithms that split PBES2 into separate pieces (such as
485 *) Session-handling fixes:
486 - Fix handling of connections that are resuming with a session ID,
487 but also support Session Tickets.
488 - Fix a bug that suppressed issuing of a new ticket if the client
489 presented a ticket with an expired session.
490 - Try to set the ticket lifetime hint to something reasonable.
491 - Make tickets shorter by excluding irrelevant information.
492 - On the client side, don't ignore renewed tickets.
493 [Adam Langley, Bodo Moeller (Google)]
495 *) Fix PSK session representation.
498 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
500 This work was sponsored by Intel.
503 *) Add GCM support to TLS library. Some custom code is needed to split
504 the IV between the fixed (from PRF) and explicit (from TLS record)
505 portions. This adds all GCM ciphersuites supported by RFC5288 and
506 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
507 add a special AESGCM string for GCM only.
510 *) Expand range of ctrls for AES GCM. Permit setting invocation
511 field on decrypt and retrieval of invocation field only on encrypt.
514 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
515 As required by RFC5289 these ciphersuites cannot be used if for
516 versions of TLS earlier than 1.2.
519 *) For FIPS capable OpenSSL interpret a NULL default public key method
520 as unset and return the appopriate default but do *not* set the default.
521 This means we can return the appopriate method in applications that
522 swicth between FIPS and non-FIPS modes.
525 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
526 ENGINE is used then we cannot handle that in the FIPS module so we
527 keep original code iff non-FIPS operations are allowed.
530 *) Add -attime option to openssl utilities.
531 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
533 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
536 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
537 FIPS EC methods unconditionally for now.
540 *) New build option no-ec2m to disable characteristic 2 code.
543 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
544 all cases can be covered as some introduce binary incompatibilities.
547 *) Redirect RSA operations to FIPS module including keygen,
548 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
551 *) Add similar low level API blocking to ciphers.
554 *) Low level digest APIs are not approved in FIPS mode: any attempt
555 to use these will cause a fatal error. Applications that *really* want
556 to use them can use the private_* version instead.
559 *) Redirect cipher operations to FIPS module for FIPS builds.
562 *) Redirect digest operations to FIPS module for FIPS builds.
565 *) Update build system to add "fips" flag which will link in fipscanister.o
566 for static and shared library builds embedding a signature if needed.
569 *) Output TLS supported curves in preference order instead of numerical
570 order. This is currently hardcoded for the highest order curves first.
571 This should be configurable so applications can judge speed vs strength.
574 *) Add TLS v1.2 server support for client authentication.
577 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
581 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
582 FIPS modules versions.
585 *) Add TLS v1.2 client side support for client authentication. Keep cache
586 of handshake records longer as we don't know the hash algorithm to use
587 until after the certificate request message is received.
590 *) Initial TLS v1.2 client support. Add a default signature algorithms
591 extension including all the algorithms we support. Parse new signature
592 format in client key exchange. Relax some ECC signing restrictions for
593 TLS v1.2 as indicated in RFC5246.
596 *) Add server support for TLS v1.2 signature algorithms extension. Switch
597 to new signature format when needed using client digest preference.
598 All server ciphersuites should now work correctly in TLS v1.2. No client
599 support yet and no support for client certificates.
602 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
603 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
604 ciphersuites. At present only RSA key exchange ciphersuites work with
605 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
606 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
607 and version checking.
610 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
611 with this defined it will not be affected by any changes to ssl internal
612 structures. Add several utility functions to allow openssl application
613 to work with OPENSSL_NO_SSL_INTERN defined.
617 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
619 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
622 *) Permit abbreviated handshakes when renegotiating using the function
623 SSL_renegotiate_abbreviated().
624 [Robin Seggelmann <seggelmann@fh-muenster.de>]
626 *) Add call to ENGINE_register_all_complete() to
627 ENGINE_load_builtin_engines(), so some implementations get used
628 automatically instead of needing explicit application support.
631 *) Add support for TLS key exporter as described in RFC5705.
632 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
634 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
635 a few changes are required:
637 Add SSL_OP_NO_TLSv1_1 flag.
639 Update version checking logic to handle version 1.1.
640 Add explicit IV handling (ported from DTLS code).
641 Add command line options to s_client/s_server.
644 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
646 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
647 in CMS and PKCS7 code. When RSA decryption fails use a random key for
648 content decryption and always return the same error. Note: this attack
649 needs on average 2^20 messages so it only affects automated senders. The
650 old behaviour can be reenabled in the CMS code by setting the
651 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
652 an MMA defence is not necessary.
653 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
654 this issue. (CVE-2012-0884)
657 *) Fix CVE-2011-4619: make sure we really are receiving a
658 client hello before rejecting multiple SGC restarts. Thanks to
659 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
662 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
664 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
665 Thanks to Antonio Martin, Enterprise Secure Access Research and
666 Development, Cisco Systems, Inc. for discovering this bug and
667 preparing a fix. (CVE-2012-0050)
670 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
672 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
673 of the Vaudenay padding oracle attack on CBC mode encryption
674 which enables an efficient plaintext recovery attack against
675 the OpenSSL implementation of DTLS. Their attack exploits timing
676 differences arising during decryption processing. A research
677 paper describing this attack can be found at:
678 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
679 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
680 Security Group at Royal Holloway, University of London
681 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
682 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
683 for preparing the fix. (CVE-2011-4108)
684 [Robin Seggelmann, Michael Tuexen]
686 *) Clear bytes used for block padding of SSL 3.0 records.
688 [Adam Langley (Google)]
690 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
691 Kadianakis <desnacked@gmail.com> for discovering this issue and
692 Adam Langley for preparing the fix. (CVE-2011-4619)
693 [Adam Langley (Google)]
695 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
696 [Andrey Kulikov <amdeich@gmail.com>]
698 *) Prevent malformed RFC3779 data triggering an assertion failure.
699 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
700 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
701 [Rob Austein <sra@hactrn.net>]
703 *) Improved PRNG seeding for VOS.
704 [Paul Green <Paul.Green@stratus.com>]
706 *) Fix ssl_ciph.c set-up race.
707 [Adam Langley (Google)]
709 *) Fix spurious failures in ecdsatest.c.
710 [Emilia Käsper (Google)]
712 *) Fix the BIO_f_buffer() implementation (which was mixing different
713 interpretations of the '..._len' fields).
714 [Adam Langley (Google)]
716 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
717 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
718 threads won't reuse the same blinding coefficients.
720 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
721 lock to call BN_BLINDING_invert_ex, and avoids one use of
722 BN_BLINDING_update for each BN_BLINDING structure (previously,
723 the last update always remained unused).
724 [Emilia Käsper (Google)]
726 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
727 [Bob Buckholz (Google)]
729 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
731 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
732 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
733 [Kaspar Brand <ossl@velox.ch>]
735 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
736 for multi-threaded use of ECDH. (CVE-2011-3210)
737 [Adam Langley (Google)]
739 *) Fix x509_name_ex_d2i memory leak on bad inputs.
742 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
743 signature public key algorithm by using OID xref utilities instead.
744 Before this you could only use some ECC ciphersuites with SHA1 only.
747 *) Add protection against ECDSA timing attacks as mentioned in the paper
748 by Billy Bob Brumley and Nicola Tuveri, see:
750 http://eprint.iacr.org/2011/232.pdf
752 [Billy Bob Brumley and Nicola Tuveri]
754 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
756 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
757 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
759 *) Fix bug in string printing code: if *any* escaping is enabled we must
760 escape the escape character (backslash) or the resulting string is
764 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
766 *) Disable code workaround for ancient and obsolete Netscape browsers
767 and servers: an attacker can use it in a ciphersuite downgrade attack.
768 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
771 *) Fixed J-PAKE implementation error, originally discovered by
772 Sebastien Martini, further info and confirmation from Stefan
773 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
776 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
778 *) Fix extension code to avoid race conditions which can result in a buffer
779 overrun vulnerability: resumed sessions must not be modified as they can
780 be shared by multiple threads. CVE-2010-3864
783 *) Fix WIN32 build system to correctly link an ENGINE directory into
787 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
789 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
791 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
793 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
795 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
796 context. The operation can be customised via the ctrl mechanism in
797 case ENGINEs want to include additional functionality.
800 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
803 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
804 output hashes compatible with older versions of OpenSSL.
805 [Willy Weisz <weisz@vcpc.univie.ac.at>]
807 *) Fix compression algorithm handling: if resuming a session use the
808 compression algorithm of the resumed session instead of determining
809 it from client hello again. Don't allow server to change algorithm.
812 *) Add load_crls() function to apps tidying load_certs() too. Add option
813 to verify utility to allow additional CRLs to be included.
816 *) Update OCSP request code to permit adding custom headers to the request:
817 some responders need this.
820 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
822 [Julia Lawall <julia@diku.dk>]
824 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
825 needlessly dereferenced structures, used obsolete functions and
826 didn't handle all updated verify codes correctly.
829 *) Disable MD2 in the default configuration.
832 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
833 indicate the initial BIO being pushed or popped. This makes it possible
834 to determine whether the BIO is the one explicitly called or as a result
835 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
836 it handles reference counts correctly and doesn't zero out the I/O bio
837 when it is not being explicitly popped. WARNING: applications which
838 included workarounds for the old buggy behaviour will need to be modified
839 or they could free up already freed BIOs.
842 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
843 renaming to all platforms (within the 0.9.8 branch, this was
844 done conditionally on Netware platforms to avoid a name clash).
845 [Guenter <lists@gknw.net>]
847 *) Add ECDHE and PSK support to DTLS.
848 [Michael Tuexen <tuexen@fh-muenster.de>]
850 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
854 *) Add "missing" function EVP_MD_flags() (without this the only way to
855 retrieve a digest flags is by accessing the structure directly. Update
856 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
857 or cipher is registered as in the "from" argument. Print out all
858 registered digests in the dgst usage message instead of manually
859 attempting to work them out.
862 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
863 this allows the use of compression and extensions. Change default cipher
864 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
865 by default unless an application cipher string requests it.
868 *) Alter match criteria in PKCS12_parse(). It used to try to use local
869 key ids to find matching certificates and keys but some PKCS#12 files
870 don't follow the (somewhat unwritten) rules and this strategy fails.
871 Now just gather all certificates together and the first private key
872 then look for the first certificate that matches the key.
875 *) Support use of registered digest and cipher names for dgst and cipher
876 commands instead of having to add each one as a special case. So now
883 openssl dgst -sha256 foo
885 and this works for ENGINE based algorithms too.
889 *) Update Gost ENGINE to support parameter files.
890 [Victor B. Wagner <vitus@cryptocom.ru>]
892 *) Support GeneralizedTime in ca utility.
893 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
895 *) Enhance the hash format used for certificate directory links. The new
896 form uses the canonical encoding (meaning equivalent names will work
897 even if they aren't identical) and uses SHA1 instead of MD5. This form
898 is incompatible with the older format and as a result c_rehash should
899 be used to rebuild symbolic links.
902 *) Make PKCS#8 the default write format for private keys, replacing the
903 traditional format. This form is standardised, more secure and doesn't
904 include an implicit MD5 dependency.
907 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
908 committed to OpenSSL should pass this lot as a minimum.
911 *) Add session ticket override functionality for use by EAP-FAST.
912 [Jouni Malinen <j@w1.fi>]
914 *) Modify HMAC functions to return a value. Since these can be implemented
915 in an ENGINE errors can occur.
918 *) Type-checked OBJ_bsearch_ex.
921 *) Type-checked OBJ_bsearch. Also some constification necessitated
922 by type-checking. Still to come: TXT_DB, bsearch(?),
923 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
927 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
928 seconds to a tm structure directly, instead of going through OS
929 specific date routines. This avoids any issues with OS routines such
930 as the year 2038 bug. New *_adj() functions for ASN1 time structures
931 and X509_time_adj_ex() to cover the extended range. The existing
932 X509_time_adj() is still usable and will no longer have any date issues.
935 *) Delta CRL support. New use deltas option which will attempt to locate
936 and search any appropriate delta CRLs available.
938 This work was sponsored by Google.
941 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
942 code and add additional score elements. Validate alternate CRL paths
943 as part of the CRL checking and indicate a new error "CRL path validation
944 error" in this case. Applications wanting additional details can use
945 the verify callback and check the new "parent" field. If this is not
946 NULL CRL path validation is taking place. Existing applications wont
947 see this because it requires extended CRL support which is off by
950 This work was sponsored by Google.
953 *) Support for freshest CRL extension.
955 This work was sponsored by Google.
958 *) Initial indirect CRL support. Currently only supported in the CRLs
959 passed directly and not via lookup. Process certificate issuer
960 CRL entry extension and lookup CRL entries by bother issuer name
961 and serial number. Check and process CRL issuer entry in IDP extension.
963 This work was sponsored by Google.
966 *) Add support for distinct certificate and CRL paths. The CRL issuer
967 certificate is validated separately in this case. Only enabled if
968 an extended CRL support flag is set: this flag will enable additional
969 CRL functionality in future.
971 This work was sponsored by Google.
974 *) Add support for policy mappings extension.
976 This work was sponsored by Google.
979 *) Fixes to pathlength constraint, self issued certificate handling,
980 policy processing to align with RFC3280 and PKITS tests.
982 This work was sponsored by Google.
985 *) Support for name constraints certificate extension. DN, email, DNS
986 and URI types are currently supported.
988 This work was sponsored by Google.
991 *) To cater for systems that provide a pointer-based thread ID rather
992 than numeric, deprecate the current numeric thread ID mechanism and
993 replace it with a structure and associated callback type. This
994 mechanism allows a numeric "hash" to be extracted from a thread ID in
995 either case, and on platforms where pointers are larger than 'long',
996 mixing is done to help ensure the numeric 'hash' is usable even if it
997 can't be guaranteed unique. The default mechanism is to use "&errno"
998 as a pointer-based thread ID to distinguish between threads.
1000 Applications that want to provide their own thread IDs should now use
1001 CRYPTO_THREADID_set_callback() to register a callback that will call
1002 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1004 Note that ERR_remove_state() is now deprecated, because it is tied
1005 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1006 to free the current thread's error state should be replaced by
1007 ERR_remove_thread_state(NULL).
1009 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1010 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1011 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1012 application was previously providing a numeric thread callback that
1013 was inappropriate for distinguishing threads, then uniqueness might
1014 have been obtained with &errno that happened immediately in the
1015 intermediate development versions of OpenSSL; this is no longer the
1016 case, the numeric thread callback will now override the automatic use
1018 [Geoff Thorpe, with help from Bodo Moeller]
1020 *) Initial support for different CRL issuing certificates. This covers a
1021 simple case where the self issued certificates in the chain exist and
1022 the real CRL issuer is higher in the existing chain.
1024 This work was sponsored by Google.
1027 *) Removed effectively defunct crypto/store from the build.
1030 *) Revamp of STACK to provide stronger type-checking. Still to come:
1031 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1032 ASN1_STRING, CONF_VALUE.
1035 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1036 RAM on SSL connections. This option can save about 34k per idle SSL.
1039 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1040 STACK, TXT_DB, bsearch, qsort.
1043 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1044 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1045 support for data, signedData, compressedData, digestedData and
1046 encryptedData, envelopedData types included. Scripts to check against
1047 RFC4134 examples draft and interop and consistency checks of many
1048 content types and variants.
1051 *) Add options to enc utility to support use of zlib compression BIO.
1054 *) Extend mk1mf to support importing of options and assembly language
1055 files from Configure script, currently only included in VC-WIN32.
1056 The assembly language rules can now optionally generate the source
1057 files from the associated perl scripts.
1060 *) Implement remaining functionality needed to support GOST ciphersuites.
1061 Interop testing has been performed using CryptoPro implementations.
1062 [Victor B. Wagner <vitus@cryptocom.ru>]
1064 *) s390x assembler pack.
1067 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1071 *) Implement Opaque PRF Input TLS extension as specified in
1072 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1073 official specification yet and no extension type assignment by
1074 IANA exists, this extension (for now) will have to be explicitly
1075 enabled when building OpenSSL by providing the extension number
1076 to use. For example, specify an option
1078 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1080 to the "config" or "Configure" script to enable the extension,
1081 assuming extension number 0x9527 (which is a completely arbitrary
1082 and unofficial assignment based on the MD5 hash of the Internet
1083 Draft). Note that by doing so, you potentially lose
1084 interoperability with other TLS implementations since these might
1085 be using the same extension number for other purposes.
1087 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1088 opaque PRF input value to use in the handshake. This will create
1089 an interal copy of the length-'len' string at 'src', and will
1090 return non-zero for success.
1092 To get more control and flexibility, provide a callback function
1095 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1096 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1100 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1103 Callback function 'cb' will be called in handshakes, and is
1104 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1105 Argument 'arg' is for application purposes (the value as given to
1106 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1107 be provided to the callback function). The callback function
1108 has to return non-zero to report success: usually 1 to use opaque
1109 PRF input just if possible, or 2 to enforce use of the opaque PRF
1110 input. In the latter case, the library will abort the handshake
1111 if opaque PRF input is not successfully negotiated.
1113 Arguments 'peerinput' and 'len' given to the callback function
1114 will always be NULL and 0 in the case of a client. A server will
1115 see the client's opaque PRF input through these variables if
1116 available (NULL and 0 otherwise). Note that if the server
1117 provides an opaque PRF input, the length must be the same as the
1118 length of the client's opaque PRF input.
1120 Note that the callback function will only be called when creating
1121 a new session (session resumption can resume whatever was
1122 previously negotiated), and will not be called in SSL 2.0
1123 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1124 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1125 for applications that need to enforce opaque PRF input.
1129 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1132 [Victor B. Wagner <vitus@cryptocom.ru>]
1134 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1135 RFC4507bis. The encrypted ticket format is an encrypted encoded
1136 SSL_SESSION structure, that way new session features are automatically
1139 If a client application caches session in an SSL_SESSION structure
1140 support is transparent because tickets are now stored in the encoded
1143 The SSL_CTX structure automatically generates keys for ticket
1144 protection in servers so again support should be possible
1145 with no application modification.
1147 If a client or server wishes to disable RFC4507 support then the option
1148 SSL_OP_NO_TICKET can be set.
1150 Add a TLS extension debugging callback to allow the contents of any client
1151 or server extensions to be examined.
1153 This work was sponsored by Google.
1156 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1157 OpenSSL should now compile cleanly on gcc 4.2
1158 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1160 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1161 support including streaming MAC support: this is required for GOST
1162 ciphersuite support.
1163 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1165 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1166 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1167 to output in BER and PEM format.
1170 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1171 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1172 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1173 ENGINE support for HMAC keys which are unextractable. New -mac and
1174 -macopt options to dgst utility.
1177 *) New option -sigopt to dgst utility. Update dgst to use
1178 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1179 alternative signing paramaters such as X9.31 or PSS in the dgst
1183 *) Change ssl_cipher_apply_rule(), the internal function that does
1184 the work each time a ciphersuite string requests enabling
1185 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1186 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1187 the order of disabled ciphersuites such that those ciphersuites
1188 that most recently went from enabled to disabled not only stay
1189 in order with respect to each other, but also have higher priority
1190 than other disabled ciphersuites the next time ciphersuites are
1193 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1194 the same ciphersuites as with "HIGH" alone, but in a specific
1195 order where the PSK ciphersuites come first (since they are the
1196 most recently disabled ciphersuites when "HIGH" is parsed).
1198 Also, change ssl_create_cipher_list() (using this new
1199 funcionality) such that between otherwise identical
1200 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1204 *) Change ssl_create_cipher_list() so that it automatically
1205 arranges the ciphersuites in reasonable order before starting
1206 to process the rule string. Thus, the definition for "DEFAULT"
1207 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1208 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1209 This makes it much easier to arrive at a reasonable default order
1210 in applications for which anonymous ciphers are OK (meaning
1211 that you can't actually use DEFAULT).
1212 [Bodo Moeller; suggested by Victor Duchovni]
1214 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1215 processing) into multiple integers instead of setting
1216 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1217 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1218 (These masks as well as the individual bit definitions are hidden
1219 away into the non-exported interface ssl/ssl_locl.h, so this
1220 change to the definition of the SSL_CIPHER structure shouldn't
1221 affect applications.) This give us more bits for each of these
1222 categories, so there is no longer a need to coagulate AES128 and
1223 AES256 into a single algorithm bit, and to coagulate Camellia128
1224 and Camellia256 into a single algorithm bit, which has led to all
1227 Thus, among other things, the kludge introduced in 0.9.7m and
1228 0.9.8e for masking out AES256 independently of AES128 or masking
1229 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1231 With the change, we also introduce new ciphersuite aliases that
1232 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1236 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1237 Use the leftmost N bytes of the signature input if the input is
1238 larger than the prime q (with N being the size in bytes of q).
1241 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1242 it yet and it is largely untested.
1245 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1248 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1249 some compilers (gcc 4.2 and later) reject their use. Safestack is
1250 reimplemented. Update ASN1 to avoid use of legacy functions.
1253 *) Win32/64 targets are linked with Winsock2.
1256 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1257 to external functions. This can be used to increase CRL handling
1258 efficiency especially when CRLs are very large by (for example) storing
1259 the CRL revoked certificates in a database.
1262 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1263 new CRLs added to a directory can be used. New command line option
1264 -verify_return_error to s_client and s_server. This causes real errors
1265 to be returned by the verify callback instead of carrying on no matter
1266 what. This reflects the way a "real world" verify callback would behave.
1269 *) GOST engine, supporting several GOST algorithms and public key formats.
1270 Kindly donated by Cryptocom.
1273 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1274 partitioned by DP are handled but no indirect CRL or reason partitioning
1275 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1276 selected via a scoring technique which handles IDP and AKID in CRLs.
1279 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1280 will ultimately be used for all verify operations: this will remove the
1281 X509_STORE dependency on certificate verification and allow alternative
1282 lookup methods. X509_STORE based implementations of these two callbacks.
1285 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1286 Modify get_crl() to find a valid (unexpired) CRL if possible.
1289 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1290 this would be called X509_CRL_cmp() but that name is already used by
1291 a function that just compares CRL issuer names. Cache several CRL
1292 extensions in X509_CRL structure and cache CRLDP in X509.
1295 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1296 this maps equivalent X509_NAME structures into a consistent structure.
1297 Name comparison can then be performed rapidly using memcmp().
1300 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1304 *) Allow digests to supply their own micalg string for S/MIME type using
1305 the ctrl EVP_MD_CTRL_MICALG.
1308 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1309 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1310 ctrl. It can then customise the structure before and/or after signing
1314 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1315 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1316 to free up any added signature OIDs.
1319 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1320 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1321 digest and cipher tables. New options added to openssl utility:
1322 list-message-digest-algorithms and list-cipher-algorithms.
1325 *) Change the array representation of binary polynomials: the list
1326 of degrees of non-zero coefficients is now terminated with -1.
1327 Previously it was terminated with 0, which was also part of the
1328 value; thus, the array representation was not applicable to
1329 polynomials where t^0 has coefficient zero. This change makes
1330 the array representation useful in a more general context.
1333 *) Various modifications and fixes to SSL/TLS cipher string
1334 handling. For ECC, the code now distinguishes between fixed ECDH
1335 with RSA certificates on the one hand and with ECDSA certificates
1336 on the other hand, since these are separate ciphersuites. The
1337 unused code for Fortezza ciphersuites has been removed.
1339 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1340 (not "ECDHE"). For consistency with the code for DH
1341 certificates, use of ECDH certificates is now considered ECDH
1342 authentication, not RSA or ECDSA authentication (the latter is
1343 merely the CA's signing algorithm and not actively used in the
1346 The temporary ciphersuite alias "ECCdraft" is no longer
1347 available, and ECC ciphersuites are no longer excluded from "ALL"
1348 and "DEFAULT". The following aliases now exist for RFC 4492
1349 ciphersuites, most of these by analogy with the DH case:
1351 kECDHr - ECDH cert, signed with RSA
1352 kECDHe - ECDH cert, signed with ECDSA
1353 kECDH - ECDH cert (signed with either RSA or ECDSA)
1354 kEECDH - ephemeral ECDH
1355 ECDH - ECDH cert or ephemeral ECDH
1361 AECDH - anonymous ECDH
1362 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1366 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1367 Use correct micalg parameters depending on digest(s) in signed message.
1370 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1371 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1374 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1375 an engine to register a method. Add ENGINE lookups for methods and
1376 functional reference processing.
1379 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1380 EVP_{Sign,Verify}* which allow an application to customise the signature
1384 *) New -resign option to smime utility. This adds one or more signers
1385 to an existing PKCS#7 signedData structure. Also -md option to use an
1386 alternative message digest algorithm for signing.
1389 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1390 create PKCS7 structures containing multiple signers. Update smime
1391 application to support multiple signers.
1394 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1398 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1399 Reorganize PBE internals to lookup from a static table using NIDs,
1400 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1401 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1402 PRF which will be automatically used with PBES2.
1405 *) Replace the algorithm specific calls to generate keys in "req" with the
1409 *) Update PKCS#7 enveloped data routines to use new API. This is now
1410 supported by any public key method supporting the encrypt operation. A
1411 ctrl is added to allow the public key algorithm to examine or modify
1412 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1416 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1417 a default digest type to use. In most cases this will be SHA1 but some
1418 algorithms (such as GOST) need to specify an alternative digest. The
1419 return value indicates how strong the prefernce is 1 means optional and
1420 2 is mandatory (that is it is the only supported type). Modify
1421 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1422 use the default md. Update openssl utilities to use the default digest
1423 type for signing if it is not explicitly indicated.
1426 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1427 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1428 signing method from the key type. This effectively removes the link
1429 between digests and public key types.
1432 *) Add an OID cross reference table and utility functions. Its purpose is to
1433 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1434 rsaEncryption. This will allow some of the algorithm specific hackery
1435 needed to use the correct OID to be removed.
1438 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1439 structures for PKCS7_sign(). They are now set up by the relevant public
1443 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1446 *) Add support for key derivation (agreement) in the API, DH method and
1450 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1451 public and private key formats. As a side effect these add additional
1452 command line functionality not previously available: DSA signatures can be
1453 generated and verified using pkeyutl and DH key support and generation in
1458 [Oliver Tappe <zooey@hirschkaefer.de>]
1460 *) New make target "install_html_docs" installs HTML renditions of the
1462 [Oliver Tappe <zooey@hirschkaefer.de>]
1464 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1465 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1466 support key and parameter generation and add initial key generation
1467 functionality for RSA.
1470 *) Add functions for main EVP_PKEY_method operations. The undocumented
1471 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1472 EVP_PKEY_{encrypt,decrypt}_old.
1475 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1476 key API, doesn't do much yet.
1479 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1480 public key algorithms. New option to openssl utility:
1481 "list-public-key-algorithms" to print out info.
1484 *) Implement the Supported Elliptic Curves Extension for
1485 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1488 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1489 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1492 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1493 utilities such as rsa, dsa, dsaparam etc except they process any key
1497 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1498 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1499 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1503 *) Initial support for pluggable public key ASN1.
1504 De-spaghettify the public key ASN1 handling. Move public and private
1505 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1506 algorithm specific handling to a single module within the relevant
1507 algorithm directory. Add functions to allow (near) opaque processing
1508 of public and private key structures.
1511 *) Implement the Supported Point Formats Extension for
1512 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1515 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1516 for the psk identity [hint] and the psk callback functions to the
1517 SSL_SESSION, SSL and SSL_CTX structure.
1520 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1524 SSL_CTX_use_psk_identity_hint
1525 SSL_get_psk_identity_hint
1526 SSL_get_psk_identity
1527 SSL_use_psk_identity_hint
1529 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1531 *) Add RFC 3161 compliant time stamp request creation, response generation
1532 and response verification functionality.
1533 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1535 *) Add initial support for TLS extensions, specifically for the server_name
1536 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1537 have new members for a host name. The SSL data structure has an
1538 additional member SSL_CTX *initial_ctx so that new sessions can be
1539 stored in that context to allow for session resumption, even after the
1540 SSL has been switched to a new SSL_CTX in reaction to a client's
1541 server_name extension.
1543 New functions (subject to change):
1545 SSL_get_servername()
1546 SSL_get_servername_type()
1549 New CTRL codes and macros (subject to change):
1551 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1552 - SSL_CTX_set_tlsext_servername_callback()
1553 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1554 - SSL_CTX_set_tlsext_servername_arg()
1555 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1557 openssl s_client has a new '-servername ...' option.
1559 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1560 '-key2 ...', '-servername_fatal' (subject to change). This allows
1561 testing the HostName extension for a specific single host name ('-cert'
1562 and '-key' remain fallbacks for handshakes without HostName
1563 negotiation). If the unrecogninzed_name alert has to be sent, this by
1564 default is a warning; it becomes fatal with the '-servername_fatal'
1567 [Peter Sylvester, Remy Allais, Christophe Renou]
1569 *) Whirlpool hash implementation is added.
1572 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1573 bn(64,32). Because of instruction set limitations it doesn't have
1574 any negative impact on performance. This was done mostly in order
1575 to make it possible to share assembler modules, such as bn_mul_mont
1576 implementations, between 32- and 64-bit builds without hassle.
1579 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1580 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1584 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1585 dedicated Montgomery multiplication procedure, is introduced.
1586 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1587 "64-bit" performance on certain 32-bit targets.
1590 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1591 in SSL structures. New SSL ctrl to set maximum send fragment size.
1592 Save memory by seeting the I/O buffer sizes dynamically instead of
1593 using the maximum available value.
1596 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1597 in addition to the text details.
1600 *) Very, very preliminary EXPERIMENTAL support for printing of general
1601 ASN1 structures. This currently produces rather ugly output and doesn't
1602 handle several customised structures at all.
1605 *) Integrated support for PVK file format and some related formats such
1606 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1607 these in the 'rsa' and 'dsa' utilities.
1610 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1613 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1614 place for the (very old) "NETSCAPE" format certificates which are now
1615 handled using new ASN1 code equivalents.
1618 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1619 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1620 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1623 *) Modify CRL distribution points extension code to print out previously
1624 unsupported fields. Enhance extension setting code to allow setting of
1628 *) Add print and set support for Issuing Distribution Point CRL extension.
1631 *) Change 'Configure' script to enable Camellia by default.
1634 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1636 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1637 Thanks to Antonio Martin, Enterprise Secure Access Research and
1638 Development, Cisco Systems, Inc. for discovering this bug and
1639 preparing a fix. (CVE-2012-0050)
1642 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1644 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1645 of the Vaudenay padding oracle attack on CBC mode encryption
1646 which enables an efficient plaintext recovery attack against
1647 the OpenSSL implementation of DTLS. Their attack exploits timing
1648 differences arising during decryption processing. A research
1649 paper describing this attack can be found at:
1650 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1651 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1652 Security Group at Royal Holloway, University of London
1653 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1654 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1655 for preparing the fix. (CVE-2011-4108)
1656 [Robin Seggelmann, Michael Tuexen]
1658 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1659 [Ben Laurie, Kasper <ekasper@google.com>]
1661 *) Clear bytes used for block padding of SSL 3.0 records.
1663 [Adam Langley (Google)]
1665 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1666 Kadianakis <desnacked@gmail.com> for discovering this issue and
1667 Adam Langley for preparing the fix. (CVE-2011-4619)
1668 [Adam Langley (Google)]
1670 *) Prevent malformed RFC3779 data triggering an assertion failure.
1671 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1672 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1673 [Rob Austein <sra@hactrn.net>]
1675 *) Fix ssl_ciph.c set-up race.
1676 [Adam Langley (Google)]
1678 *) Fix spurious failures in ecdsatest.c.
1679 [Emilia Käsper (Google)]
1681 *) Fix the BIO_f_buffer() implementation (which was mixing different
1682 interpretations of the '..._len' fields).
1683 [Adam Langley (Google)]
1685 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1686 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1687 threads won't reuse the same blinding coefficients.
1689 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1690 lock to call BN_BLINDING_invert_ex, and avoids one use of
1691 BN_BLINDING_update for each BN_BLINDING structure (previously,
1692 the last update always remained unused).
1693 [Emilia Käsper (Google)]
1695 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1696 for multi-threaded use of ECDH.
1697 [Adam Langley (Google)]
1699 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1702 *) Add protection against ECDSA timing attacks as mentioned in the paper
1703 by Billy Bob Brumley and Nicola Tuveri, see:
1705 http://eprint.iacr.org/2011/232.pdf
1707 [Billy Bob Brumley and Nicola Tuveri]
1709 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1711 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1712 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1714 *) Fix bug in string printing code: if *any* escaping is enabled we must
1715 escape the escape character (backslash) or the resulting string is
1719 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1721 *) Disable code workaround for ancient and obsolete Netscape browsers
1722 and servers: an attacker can use it in a ciphersuite downgrade attack.
1723 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1726 *) Fixed J-PAKE implementation error, originally discovered by
1727 Sebastien Martini, further info and confirmation from Stefan
1728 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1731 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1733 *) Fix extension code to avoid race conditions which can result in a buffer
1734 overrun vulnerability: resumed sessions must not be modified as they can
1735 be shared by multiple threads. CVE-2010-3864
1738 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1741 *) Don't reencode certificate when calculating signature: cache and use
1742 the original encoding instead. This makes signature verification of
1743 some broken encodings work correctly.
1746 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1747 is also one of the inputs.
1748 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1750 *) Don't repeatedly append PBE algorithms to table if they already exist.
1751 Sort table on each new add. This effectively makes the table read only
1752 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1756 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1758 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1761 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1762 access or freeing data twice (CVE-2010-0742)
1763 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1765 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1766 common in certificates and some applications which only call
1767 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1771 Reduce copying into .apps and .test in makevms.com
1772 Don't try to use blank CA certificate in CA.com
1773 Allow use of C files from original directories in maketests.com
1774 [Steven M. Schweda" <sms@antinode.info>]
1776 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1778 *) When rejecting SSL/TLS records due to an incorrect version number, never
1779 update s->server with a new major version number. As of
1780 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1781 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1782 the previous behavior could result in a read attempt at NULL when
1783 receiving specific incorrect SSL/TLS records once record payload
1784 protection is active. (CVE-2010-0740)
1785 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1787 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1788 could be crashed if the relevant tables were not present (e.g. chrooted).
1789 [Tomas Hoger <thoger@redhat.com>]
1791 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1793 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1794 [Martin Olsson, Neel Mehta]
1796 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1797 accommodate for stack sorting, always a write lock!).
1800 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1801 excessive delays in the RAND_poll(): over a minute. As a workaround
1802 include a time check in the inner Heap32Next loop too.
1805 *) The code that handled flushing of data in SSL/TLS originally used the
1806 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1807 the problem outlined in PR#1949. The fix suggested there however can
1808 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1809 of Apache). So instead simplify the code to flush unconditionally.
1810 This should be fine since flushing with no data to flush is a no op.
1813 *) Handle TLS versions 2.0 and later properly and correctly use the
1814 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1815 off ancient servers have a habit of sticking around for a while...
1818 *) Modify compression code so it frees up structures without using the
1819 ex_data callbacks. This works around a problem where some applications
1820 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1821 restarting) then use compression (e.g. SSL with compression) later.
1822 This results in significant per-connection memory leaks and
1823 has caused some security issues including CVE-2008-1678 and
1827 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1828 change when encrypting or decrypting.
1831 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1832 connect and renegotiate with servers which do not support RI.
1833 Until RI is more widely deployed this option is enabled by default.
1836 *) Add "missing" ssl ctrls to clear options and mode.
1839 *) If client attempts to renegotiate and doesn't support RI respond with
1840 a no_renegotiation alert as required by RFC5746. Some renegotiating
1841 TLS clients will continue a connection gracefully when they receive
1842 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1843 waiting for a server hello which it will never receive. Now we treat a
1844 received no_renegotiation alert as a fatal error. This is because
1845 applications requesting a renegotiation might well expect it to succeed
1846 and would have no code in place to handle the server denying it so the
1847 only safe thing to do is to terminate the connection.
1850 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1851 peer supports secure renegotiation and 0 otherwise. Print out peer
1852 renegotiation support in s_client/s_server.
1855 *) Replace the highly broken and deprecated SPKAC certification method with
1856 the updated NID creation version. This should correctly handle UTF8.
1859 *) Implement RFC5746. Re-enable renegotiation but require the extension
1860 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1861 turns out to be a bad idea. It has been replaced by
1862 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1863 SSL_CTX_set_options(). This is really not recommended unless you
1864 know what you are doing.
1865 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1867 *) Fixes to stateless session resumption handling. Use initial_ctx when
1868 issuing and attempting to decrypt tickets in case it has changed during
1869 servername handling. Use a non-zero length session ID when attempting
1870 stateless session resumption: this makes it possible to determine if
1871 a resumption has occurred immediately after receiving server hello
1872 (several places in OpenSSL subtly assume this) instead of later in
1876 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1877 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1878 fixes for a few places where the return code is not checked
1880 [Julia Lawall <julia@diku.dk>]
1882 *) Add --strict-warnings option to Configure script to include devteam
1883 warnings in other configurations.
1886 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1887 makes it possible to install openssl libraries in locations which
1888 have names other than "lib", for example "/usr/lib64" which some
1890 [Steve Henson, based on patch from Jeremy Utley]
1892 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1893 X690 8.9.12 and can produce some misleading textual output of OIDs.
1894 [Steve Henson, reported by Dan Kaminsky]
1896 *) Delete MD2 from algorithm tables. This follows the recommendation in
1897 several standards that it is not used in new applications due to
1898 several cryptographic weaknesses. For binary compatibility reasons
1899 the MD2 API is still compiled in by default.
1902 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1906 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1907 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1909 [Guenter <lists@gknw.net>]
1911 *) Fix the server certificate chain building code to use X509_verify_cert(),
1912 it used to have an ad-hoc builder which was unable to cope with anything
1913 other than a simple chain.
1914 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1916 *) Don't check self signed certificate signatures in X509_verify_cert()
1917 by default (a flag can override this): it just wastes time without
1918 adding any security. As a useful side effect self signed root CAs
1919 with non-FIPS digests are now usable in FIPS mode.
1922 *) In dtls1_process_out_of_seq_message() the check if the current message
1923 is already buffered was missing. For every new message was memory
1924 allocated, allowing an attacker to perform an denial of service attack
1925 with sending out of seq handshake messages until there is no memory
1926 left. Additionally every future messege was buffered, even if the
1927 sequence number made no sense and would be part of another handshake.
1928 So only messages with sequence numbers less than 10 in advance will be
1929 buffered. (CVE-2009-1378)
1930 [Robin Seggelmann, discovered by Daniel Mentz]
1932 *) Records are buffered if they arrive with a future epoch to be
1933 processed after finishing the corresponding handshake. There is
1934 currently no limitation to this buffer allowing an attacker to perform
1935 a DOS attack with sending records with future epochs until there is no
1936 memory left. This patch adds the pqueue_size() function to detemine
1937 the size of a buffer and limits the record buffer to 100 entries.
1939 [Robin Seggelmann, discovered by Daniel Mentz]
1941 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1942 parent structure is freed. (CVE-2009-1379)
1945 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1946 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1949 [Ilya O. <vrghost@gmail.com>]
1951 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1953 *) Disable renegotiation completely - this fixes a severe security
1954 problem (CVE-2009-3555) at the cost of breaking all
1955 renegotiation. Renegotiation can be re-enabled by setting
1956 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1957 run-time. This is really not recommended unless you know what
1961 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1963 *) Don't set val to NULL when freeing up structures, it is freed up by
1964 underlying code. If sizeof(void *) > sizeof(long) this can result in
1965 zeroing past the valid field. (CVE-2009-0789)
1966 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1968 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1969 checked correctly. This would allow some invalid signed attributes to
1970 appear to verify correctly. (CVE-2009-0591)
1971 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1973 *) Reject UniversalString and BMPString types with invalid lengths. This
1974 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1975 a legal length. (CVE-2009-0590)
1978 *) Set S/MIME signing as the default purpose rather than setting it
1979 unconditionally. This allows applications to override it at the store
1983 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1984 to handle some structures.
1987 *) Improve efficiency of mem_gets: don't search whole buffer each time
1989 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1991 *) New -hex option for openssl rand.
1994 *) Print out UTF8String and NumericString when parsing ASN1.
1997 *) Support NumericString type for name components.
2000 *) Allow CC in the environment to override the automatically chosen
2001 compiler. Note that nothing is done to ensure flags work with the
2005 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2007 *) Properly check EVP_VerifyFinal() and similar return values
2009 [Ben Laurie, Bodo Moeller, Google Security Team]
2011 *) Enable TLS extensions by default.
2014 *) Allow the CHIL engine to be loaded, whether the application is
2015 multithreaded or not. (This does not release the developer from the
2016 obligation to set up the dynamic locking callbacks.)
2017 [Sander Temme <sander@temme.net>]
2019 *) Use correct exit code if there is an error in dgst command.
2020 [Steve Henson; problem pointed out by Roland Dirlewanger]
2022 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2023 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2026 *) Add experimental JPAKE support, including demo authentication in
2027 s_client and s_server.
2030 *) Set the comparison function in v3_addr_canonize().
2031 [Rob Austein <sra@hactrn.net>]
2033 *) Add support for XMPP STARTTLS in s_client.
2034 [Philip Paeps <philip@freebsd.org>]
2036 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2037 to ensure that even with this option, only ciphersuites in the
2038 server's preference list will be accepted. (Note that the option
2039 applies only when resuming a session, so the earlier behavior was
2040 just about the algorithm choice for symmetric cryptography.)
2043 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2045 *) Fix NULL pointer dereference if a DTLS server received
2046 ChangeCipherSpec as first record (CVE-2009-1386).
2049 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
2050 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2053 *) The fix in 0.9.8c that supposedly got rid of unsafe
2054 double-checked locking was incomplete for RSA blinding,
2055 addressing just one layer of what turns out to have been
2056 doubly unsafe triple-checked locking.
2058 So now fix this for real by retiring the MONT_HELPER macro
2059 in crypto/rsa/rsa_eay.c.
2061 [Bodo Moeller; problem pointed out by Marius Schilder]
2063 *) Various precautionary measures:
2065 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2067 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2068 (NB: This would require knowledge of the secret session ticket key
2069 to exploit, in which case you'd be SOL either way.)
2071 - Change bn_nist.c so that it will properly handle input BIGNUMs
2072 outside the expected range.
2074 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2077 [Neel Mehta, Bodo Moeller]
2079 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2080 the load fails. Useful for distros.
2081 [Ben Laurie and the FreeBSD team]
2083 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2086 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2089 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2091 This work was sponsored by Logica.
2094 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2095 keystores. Support for SSL/TLS client authentication too.
2096 Not compiled unless enable-capieng specified to Configure.
2098 This work was sponsored by Logica.
2101 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2102 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2103 attribute creation routines such as certifcate requests and PKCS#12
2107 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2109 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2110 handshake which could lead to a cilent crash as found using the
2111 Codenomicon TLS test suite (CVE-2008-1672)
2112 [Steve Henson, Mark Cox]
2114 *) Fix double free in TLS server name extensions which could lead to
2115 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2118 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2120 Clear the error queue to ensure that error entries left from
2121 older function calls do not interfere with the correct operation.
2122 [Lutz Jaenicke, Erik de Castro Lopo]
2124 *) Remove root CA certificates of commercial CAs:
2126 The OpenSSL project does not recommend any specific CA and does not
2127 have any policy with respect to including or excluding any CA.
2128 Therefore it does not make any sense to ship an arbitrary selection
2129 of root CA certificates with the OpenSSL software.
2132 *) RSA OAEP patches to fix two separate invalid memory reads.
2133 The first one involves inputs when 'lzero' is greater than
2134 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2135 before the beginning of from). The second one involves inputs where
2136 the 'db' section contains nothing but zeroes (there is a one-byte
2137 invalid read after the end of 'db').
2138 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2140 *) Partial backport from 0.9.9-dev:
2142 Introduce bn_mul_mont (dedicated Montgomery multiplication
2143 procedure) as a candidate for BIGNUM assembler implementation.
2144 While 0.9.9-dev uses assembler for various architectures, only
2145 x86_64 is available by default here in the 0.9.8 branch, and
2146 32-bit x86 is available through a compile-time setting.
2148 To try the 32-bit x86 assembler implementation, use Configure
2149 option "enable-montasm" (which exists only for this backport).
2151 As "enable-montasm" for 32-bit x86 disclaims code stability
2152 anyway, in this constellation we activate additional code
2153 backported from 0.9.9-dev for further performance improvements,
2154 namely BN_from_montgomery_word. (To enable this otherwise,
2155 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2157 [Andy Polyakov (backport partially by Bodo Moeller)]
2159 *) Add TLS session ticket callback. This allows an application to set
2160 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2161 values. This is useful for key rollover for example where several key
2162 sets may exist with different names.
2165 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2166 This was broken until now in 0.9.8 releases, such that the only way
2167 a registered ENGINE could be used (assuming it initialises
2168 successfully on the host) was to explicitly set it as the default
2169 for the relevant algorithms. This is in contradiction with 0.9.7
2170 behaviour and the documentation. With this fix, when an ENGINE is
2171 registered into a given algorithm's table of implementations, the
2172 'uptodate' flag is reset so that auto-discovery will be used next
2173 time a new context for that algorithm attempts to select an
2175 [Ian Lister (tweaked by Geoff Thorpe)]
2177 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2178 implemention in the following ways:
2180 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2183 Lack of BER streaming support means one pass streaming processing is
2184 only supported if data is detached: setting the streaming flag is
2185 ignored for embedded content.
2187 CMS support is disabled by default and must be explicitly enabled
2188 with the enable-cms configuration option.
2191 *) Update the GMP engine glue to do direct copies between BIGNUM and
2192 mpz_t when openssl and GMP use the same limb size. Otherwise the
2193 existing "conversion via a text string export" trick is still used.
2194 [Paul Sheer <paulsheer@gmail.com>]
2196 *) Zlib compression BIO. This is a filter BIO which compressed and
2197 uncompresses any data passed through it.
2200 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2201 RFC3394 compatible AES key wrapping.
2204 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2205 sets string data without copying. X509_ALGOR_set0() and
2206 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2207 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2208 from an X509_ATTRIBUTE structure optionally checking it occurs only
2209 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2213 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2214 to get the expected BN_FLG_CONSTTIME behavior.
2215 [Bodo Moeller (Google)]
2219 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2220 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2221 - added some more tests to do_tests.pl
2222 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2223 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2224 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2225 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2226 - various changes to netware.pl to enable gcc-cross builds on Win32
2228 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2229 - various changes to fix missing prototype warnings
2230 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2231 - added AES, WHIRLPOOL and CPUID assembler code to build files
2232 - added missing AES assembler make rules to mk1mf.pl
2233 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2234 [Guenter Knauf <eflash@gmx.net>]
2236 *) Implement certificate status request TLS extension defined in RFC3546.
2237 A client can set the appropriate parameters and receive the encoded
2238 OCSP response via a callback. A server can query the supplied parameters
2239 and set the encoded OCSP response in the callback. Add simplified examples
2240 to s_client and s_server.
2243 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2245 *) Fix various bugs:
2246 + Binary incompatibility of ssl_ctx_st structure
2247 + DTLS interoperation with non-compliant servers
2248 + Don't call get_session_cb() without proposed session
2249 + Fix ia64 assembler code
2250 [Andy Polyakov, Steve Henson]
2252 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2254 *) DTLS Handshake overhaul. There were longstanding issues with
2255 OpenSSL DTLS implementation, which were making it impossible for
2256 RFC 4347 compliant client to communicate with OpenSSL server.
2257 Unfortunately just fixing these incompatibilities would "cut off"
2258 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2259 server keeps tolerating non RFC compliant syntax. The opposite is
2260 not true, 0.9.8f client can not communicate with earlier server.
2261 This update even addresses CVE-2007-4995.
2264 *) Changes to avoid need for function casts in OpenSSL: some compilers
2265 (gcc 4.2 and later) reject their use.
2266 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2269 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2270 RFC4507bis. The encrypted ticket format is an encrypted encoded
2271 SSL_SESSION structure, that way new session features are automatically
2274 If a client application caches session in an SSL_SESSION structure
2275 support is transparent because tickets are now stored in the encoded
2278 The SSL_CTX structure automatically generates keys for ticket
2279 protection in servers so again support should be possible
2280 with no application modification.
2282 If a client or server wishes to disable RFC4507 support then the option
2283 SSL_OP_NO_TICKET can be set.
2285 Add a TLS extension debugging callback to allow the contents of any client
2286 or server extensions to be examined.
2288 This work was sponsored by Google.
2291 *) Add initial support for TLS extensions, specifically for the server_name
2292 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2293 have new members for a host name. The SSL data structure has an
2294 additional member SSL_CTX *initial_ctx so that new sessions can be
2295 stored in that context to allow for session resumption, even after the
2296 SSL has been switched to a new SSL_CTX in reaction to a client's
2297 server_name extension.
2299 New functions (subject to change):
2301 SSL_get_servername()
2302 SSL_get_servername_type()
2305 New CTRL codes and macros (subject to change):
2307 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2308 - SSL_CTX_set_tlsext_servername_callback()
2309 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2310 - SSL_CTX_set_tlsext_servername_arg()
2311 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2313 openssl s_client has a new '-servername ...' option.
2315 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2316 '-key2 ...', '-servername_fatal' (subject to change). This allows
2317 testing the HostName extension for a specific single host name ('-cert'
2318 and '-key' remain fallbacks for handshakes without HostName
2319 negotiation). If the unrecogninzed_name alert has to be sent, this by
2320 default is a warning; it becomes fatal with the '-servername_fatal'
2323 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2325 *) Add AES and SSE2 assembly language support to VC++ build.
2328 *) Mitigate attack on final subtraction in Montgomery reduction.
2331 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2332 (which previously caused an internal error).
2335 *) Squeeze another 10% out of IGE mode when in != out.
2338 *) AES IGE mode speedup.
2339 [Dean Gaudet (Google)]
2341 *) Add the Korean symmetric 128-bit cipher SEED (see
2342 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2343 add SEED ciphersuites from RFC 4162:
2345 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2346 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2347 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2348 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2350 To minimize changes between patchlevels in the OpenSSL 0.9.8
2351 series, SEED remains excluded from compilation unless OpenSSL
2352 is configured with 'enable-seed'.
2353 [KISA, Bodo Moeller]
2355 *) Mitigate branch prediction attacks, which can be practical if a
2356 single processor is shared, allowing a spy process to extract
2357 information. For detailed background information, see
2358 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2359 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2360 and Necessary Software Countermeasures"). The core of the change
2361 are new versions BN_div_no_branch() and
2362 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2363 respectively, which are slower, but avoid the security-relevant
2364 conditional branches. These are automatically called by BN_div()
2365 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2366 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2367 remove a conditional branch.
2369 BN_FLG_CONSTTIME is the new name for the previous
2370 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2371 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2372 in the exponent causes BN_mod_exp_mont() to use the alternative
2373 implementation in BN_mod_exp_mont_consttime().) The old name
2374 remains as a deprecated alias.
2376 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2377 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2378 constant-time implementations for more than just exponentiation.
2379 Here too the old name is kept as a deprecated alias.
2381 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2382 the BN_BLINDING structure gets an independent copy of the
2383 modulus. This means that the previous "BIGNUM *m" argument to
2384 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2385 essentially becomes "const BIGNUM *m", although we can't actually
2386 change this in the header file before 0.9.9. It allows
2387 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2388 enable BN_FLG_CONSTTIME.
2390 [Matthew D Wood (Intel Corp)]
2392 *) In the SSL/TLS server implementation, be strict about session ID
2393 context matching (which matters if an application uses a single
2394 external cache for different purposes). Previously,
2395 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2396 set. This did ensure strict client verification, but meant that,
2397 with applications using a single external cache for quite
2398 different requirements, clients could circumvent ciphersuite
2399 restrictions for a given session ID context by starting a session
2400 in a different context.
2403 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2404 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2405 authentication-only ciphersuites.
2408 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2409 not complete and could lead to a possible single byte overflow
2410 (CVE-2007-5135) [Ben Laurie]
2412 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2414 *) Since AES128 and AES256 (and similarly Camellia128 and
2415 Camellia256) share a single mask bit in the logic of
2416 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2417 kludge to work properly if AES128 is available and AES256 isn't
2418 (or if Camellia128 is available and Camellia256 isn't).
2421 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2422 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2423 When a point or a seed is encoded in a BIT STRING, we need to
2424 prevent the removal of trailing zero bits to get the proper DER
2425 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2426 of a NamedBitList, for which trailing 0 bits need to be removed.)
2429 *) Have SSL/TLS server implementation tolerate "mismatched" record
2430 protocol version while receiving ClientHello even if the
2431 ClientHello is fragmented. (The server can't insist on the
2432 particular protocol version it has chosen before the ServerHello
2433 message has informed the client about his choice.)
2436 *) Add RFC 3779 support.
2437 [Rob Austein for ARIN, Ben Laurie]
2439 *) Load error codes if they are not already present instead of using a
2440 static variable. This allows them to be cleanly unloaded and reloaded.
2441 Improve header file function name parsing.
2444 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2445 or CAPABILITY handshake as required by RFCs.
2448 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2450 *) Introduce limits to prevent malicious keys being able to
2451 cause a denial of service. (CVE-2006-2940)
2452 [Steve Henson, Bodo Moeller]
2454 *) Fix ASN.1 parsing of certain invalid structures that can result
2455 in a denial of service. (CVE-2006-2937) [Steve Henson]
2457 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2458 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2460 *) Fix SSL client code which could crash if connecting to a
2461 malicious SSLv2 server. (CVE-2006-4343)
2462 [Tavis Ormandy and Will Drewry, Google Security Team]
2464 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2465 match only those. Before that, "AES256-SHA" would be interpreted
2466 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2467 the same strength classification in 0.9.7h) as we currently only
2468 have a single AES bit in the ciphersuite description bitmap.
2469 That change, however, also applied to ciphersuite strings such as
2470 "RC4-MD5" that intentionally matched multiple ciphersuites --
2471 namely, SSL 2.0 ciphersuites in addition to the more common ones
2472 from SSL 3.0/TLS 1.0.
2474 So we change the selection algorithm again: Naming an explicit
2475 ciphersuite selects this one ciphersuite, and any other similar
2476 ciphersuite (same bitmap) from *other* protocol versions.
2477 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2478 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2480 Since SSL 2.0 does not have any ciphersuites for which the
2481 128/256 bit distinction would be relevant, this works for now.
2482 The proper fix will be to use different bits for AES128 and
2483 AES256, which would have avoided the problems from the beginning;
2484 however, bits are scarce, so we can only do this in a new release
2485 (not just a patchlevel) when we can change the SSL_CIPHER
2486 definition to split the single 'unsigned long mask' bitmap into
2487 multiple values to extend the available space.
2491 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2493 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2494 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2496 *) Add AES IGE and biIGE modes.
2499 *) Change the Unix randomness entropy gathering to use poll() when
2500 possible instead of select(), since the latter has some
2501 undesirable limitations.
2502 [Darryl Miles via Richard Levitte and Bodo Moeller]
2504 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2505 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2506 cannot be implicitly activated as part of, e.g., the "AES" alias.
2507 However, please upgrade to OpenSSL 0.9.9[-dev] for
2508 non-experimental use of the ECC ciphersuites to get TLS extension
2509 support, which is required for curve and point format negotiation
2510 to avoid potential handshake problems.
2513 *) Disable rogue ciphersuites:
2515 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2516 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2517 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2519 The latter two were purportedly from
2520 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2523 Also deactivate the remaining ciphersuites from
2524 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2525 unofficial, and the ID has long expired.
2528 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2529 dual-core machines) and other potential thread-safety issues.
2532 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2533 versions), which is now available for royalty-free use
2534 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2535 Also, add Camellia TLS ciphersuites from RFC 4132.
2537 To minimize changes between patchlevels in the OpenSSL 0.9.8
2538 series, Camellia remains excluded from compilation unless OpenSSL
2539 is configured with 'enable-camellia'.
2542 *) Disable the padding bug check when compression is in use. The padding
2543 bug check assumes the first packet is of even length, this is not
2544 necessarily true if compresssion is enabled and can result in false
2545 positives causing handshake failure. The actual bug test is ancient
2546 code so it is hoped that implementations will either have fixed it by
2547 now or any which still have the bug do not support compression.
2550 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2552 *) When applying a cipher rule check to see if string match is an explicit
2553 cipher suite and only match that one cipher suite if it is.
2556 *) Link in manifests for VC++ if needed.
2557 [Austin Ziegler <halostatue@gmail.com>]
2559 *) Update support for ECC-based TLS ciphersuites according to
2560 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2561 TLS extensions, which are supported starting with the 0.9.9
2562 branch, not in the OpenSSL 0.9.8 branch).
2565 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2566 opaque EVP_CIPHER_CTX handling.
2569 *) Fixes and enhancements to zlib compression code. We now only use
2570 "zlib1.dll" and use the default __cdecl calling convention on Win32
2571 to conform with the standards mentioned here:
2572 http://www.zlib.net/DLL_FAQ.txt
2573 Static zlib linking now works on Windows and the new --with-zlib-include
2574 --with-zlib-lib options to Configure can be used to supply the location
2575 of the headers and library. Gracefully handle case where zlib library
2579 *) Several fixes and enhancements to the OID generation code. The old code
2580 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2581 handle numbers larger than ULONG_MAX, truncated printing and had a
2582 non standard OBJ_obj2txt() behaviour.
2585 *) Add support for building of engines under engine/ as shared libraries
2586 under VC++ build system.
2589 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2590 Hopefully, we will not see any false combination of paths any more.
2593 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2595 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2596 (part of SSL_OP_ALL). This option used to disable the
2597 countermeasure against man-in-the-middle protocol-version
2598 rollback in the SSL 2.0 server implementation, which is a bad
2599 idea. (CVE-2005-2969)
2601 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2602 for Information Security, National Institute of Advanced Industrial
2603 Science and Technology [AIST], Japan)]
2605 *) Add two function to clear and return the verify parameter flags.
2608 *) Keep cipherlists sorted in the source instead of sorting them at
2609 runtime, thus removing the need for a lock.
2612 *) Avoid some small subgroup attacks in Diffie-Hellman.
2613 [Nick Mathewson and Ben Laurie]
2615 *) Add functions for well-known primes.
2618 *) Extended Windows CE support.
2619 [Satoshi Nakamura and Andy Polyakov]
2621 *) Initialize SSL_METHOD structures at compile time instead of during
2622 runtime, thus removing the need for a lock.
2625 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2626 attempting to decrypt each encrypted key in turn. Add support to
2630 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2632 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2635 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2638 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2639 key into the same file any more.
2642 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2645 *) Add -utf8 command line and config file option to 'ca'.
2646 [Stefan <stf@udoma.org]
2648 *) Removed the macro des_crypt(), as it seems to conflict with some
2649 libraries. Use DES_crypt().
2652 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2653 involves renaming the source and generated shared-libs for
2654 both. The engines will accept the corrected or legacy ids
2655 ('ncipher' and '4758_cca' respectively) when binding. NB,
2656 this only applies when building 'shared'.
2657 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2659 *) Add attribute functions to EVP_PKEY structure. Modify
2660 PKCS12_create() to recognize a CSP name attribute and
2661 use it. Make -CSP option work again in pkcs12 utility.
2664 *) Add new functionality to the bn blinding code:
2665 - automatic re-creation of the BN_BLINDING parameters after
2666 a fixed number of uses (currently 32)
2667 - add new function for parameter creation
2668 - introduce flags to control the update behaviour of the
2669 BN_BLINDING parameters
2670 - hide BN_BLINDING structure
2671 Add a second BN_BLINDING slot to the RSA structure to improve
2672 performance when a single RSA object is shared among several
2676 *) Add support for DTLS.
2677 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2679 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2680 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2683 *) Remove buggy and incompletet DH cert support from
2684 ssl/ssl_rsa.c and ssl/s3_both.c
2687 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2688 the apps/openssl applications.
2691 *) Compile clean with "-Wall -Wmissing-prototypes
2692 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2693 DEBUG_SAFESTACK must also be set.
2696 *) Change ./Configure so that certain algorithms can be disabled by default.
2697 The new counterpiece to "no-xxx" is "enable-xxx".
2699 The patented RC5 and MDC2 algorithms will now be disabled unless
2700 "enable-rc5" and "enable-mdc2", respectively, are specified.
2702 (IDEA remains enabled despite being patented. This is because IDEA
2703 is frequently required for interoperability, and there is no license
2704 fee for non-commercial use. As before, "no-idea" can be used to
2705 avoid this algorithm.)
2709 *) Add processing of proxy certificates (see RFC 3820). This work was
2710 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2711 EGEE (Enabling Grids for E-science in Europe).
2714 *) RC4 performance overhaul on modern architectures/implementations, such
2715 as Intel P4, IA-64 and AMD64.
2718 *) New utility extract-section.pl. This can be used specify an alternative
2719 section number in a pod file instead of having to treat each file as
2720 a separate case in Makefile. This can be done by adding two lines to the
2723 =for comment openssl_section:XXX
2725 The blank line is mandatory.
2729 *) New arguments -certform, -keyform and -pass for s_client and s_server
2730 to allow alternative format key and certificate files and passphrase
2734 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2735 update associated structures and add various utility functions.
2737 Add new policy related verify parameters, include policy checking in
2738 standard verify code. Enhance 'smime' application with extra parameters
2739 to support policy checking and print out.
2742 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2743 Nehemiah processors. These extensions support AES encryption in hardware
2744 as well as RNG (though RNG support is currently disabled).
2745 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2747 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2750 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2751 [Andy Polyakov and a number of other people]
2753 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2754 implementation contributed by IBM.
2755 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2757 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2758 exponent rather than 'unsigned long'. There is a corresponding change to
2759 the new 'rsa_keygen' element of the RSA_METHOD structure.
2760 [Jelte Jansen, Geoff Thorpe]
2762 *) Functionality for creating the initial serial number file is now
2763 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2765 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2766 number file to 1, which is bound to cause problems. To avoid
2767 the problems while respecting compatibility between different 0.9.7
2768 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2769 CA.pl for serial number initialization. With the new release 0.9.8,
2770 we can fix the problem directly in the 'ca' utility.)
2773 *) Reduced header interdepencies by declaring more opaque objects in
2774 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2775 give fewer recursive includes, which could break lazy source code - so
2776 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2777 developers should define this symbol when building and using openssl to
2778 ensure they track the recommended behaviour, interfaces, [etc], but
2779 backwards-compatible behaviour prevails when this isn't defined.
2782 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2785 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2786 This will generate a random key of the appropriate length based on the
2787 cipher context. The EVP_CIPHER can provide its own random key generation
2788 routine to support keys of a specific form. This is used in the des and
2789 3des routines to generate a key of the correct parity. Update S/MIME
2790 code to use new functions and hence generate correct parity DES keys.
2791 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2792 valid (weak or incorrect parity).
2795 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2796 as looking them up. This is useful when the verified structure may contain
2797 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2798 present unless the new PKCS7_NO_CRL flag is asserted.
2801 *) Extend ASN1 oid configuration module. It now additionally accepts the
2804 shortName = some long name, 1.2.3.4
2807 *) Reimplemented the BN_CTX implementation. There is now no more static
2808 limitation on the number of variables it can handle nor the depth of the
2809 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2810 information can now expand as required, and rather than having a single
2811 static array of bignums, BN_CTX now uses a linked-list of such arrays
2812 allowing it to expand on demand whilst maintaining the usefulness of
2813 BN_CTX's "bundling".
2816 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2817 to allow all RSA operations to function using a single BN_CTX.
2820 *) Preliminary support for certificate policy evaluation and checking. This
2821 is initially intended to pass the tests outlined in "Conformance Testing
2822 of Relying Party Client Certificate Path Processing Logic" v1.07.
2825 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2826 remained unused and not that useful. A variety of other little bignum
2827 tweaks and fixes have also been made continuing on from the audit (see
2831 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2832 associated ASN1, EVP and SSL functions and old ASN1 macros.
2835 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2836 and this should never fail. So the return value from the use of
2837 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2838 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2841 *) BN_CTX_get() should return zero-valued bignums, providing the same
2842 initialised value as BN_new().
2843 [Geoff Thorpe, suggested by Ulf Möller]
2845 *) Support for inhibitAnyPolicy certificate extension.
2848 *) An audit of the BIGNUM code is underway, for which debugging code is
2849 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2850 is considered valid when processing BIGNUMs, and causes execution to
2851 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2852 further steps are taken to deliberately pollute unused data in BIGNUM
2853 structures to try and expose faulty code further on. For now, openssl will
2854 (in its default mode of operation) continue to tolerate the inconsistent
2855 forms that it has tolerated in the past, but authors and packagers should
2856 consider trying openssl and their own applications when compiled with
2857 these debugging symbols defined. It will help highlight potential bugs in
2858 their own code, and will improve the test coverage for OpenSSL itself. At
2859 some point, these tighter rules will become openssl's default to improve
2860 maintainability, though the assert()s and other overheads will remain only
2861 in debugging configurations. See bn.h for more details.
2862 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2864 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2865 that can only be obtained through BN_CTX_new() (which implicitly
2866 initialises it). The presence of this function only made it possible
2867 to overwrite an existing structure (and cause memory leaks).
2870 *) Because of the callback-based approach for implementing LHASH as a
2871 template type, lh_insert() adds opaque objects to hash-tables and
2872 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2873 to clean up those corresponding objects before destroying the hash table
2874 (and losing the object pointers). So some over-zealous constifications in
2875 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2876 objects as "const" and the lh_doall[_arg] callback wrappers are not
2877 prototyped to have "const" restrictions on the object pointers they are
2878 given (and so aren't required to cast them away any more).
2881 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2882 (speed) prefers to use its own implementation. The two implementations
2883 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2884 its object type properly exposed (MS_TM) instead of casting to/from "char
2885 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2886 aren't necessarily the greatest nomenclatures - but this is what was used
2887 internally to the implementation so I've used that for now.
2890 *) Ensure that deprecated functions do not get compiled when
2891 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2892 the self-tests were still using deprecated key-generation functions so
2893 these have been updated also.
2896 *) Reorganise PKCS#7 code to separate the digest location functionality
2897 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2898 New function PKCS7_set_digest() to set the digest type for PKCS#7
2899 digestedData type. Add additional code to correctly generate the
2900 digestedData type and add support for this type in PKCS7 initialization
2904 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2905 structure of type "other".
2908 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2909 sure the loop does correctly stop and breaking ("division by zero")
2910 modulus operations are not performed. The (pre-generated) prime
2911 table crypto/bn/bn_prime.h was already correct, but it could not be
2912 re-generated on some platforms because of the "division by zero"
2913 situation in the script.
2914 [Ralf S. Engelschall]
2916 *) Update support for ECC-based TLS ciphersuites according to
2917 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2918 SHA-1 now is only used for "small" curves (where the
2919 representation of a field element takes up to 24 bytes); for
2920 larger curves, the field element resulting from ECDH is directly
2921 used as premaster secret.
2922 [Douglas Stebila (Sun Microsystems Laboratories)]
2924 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2925 curve secp160r1 to the tests.
2926 [Douglas Stebila (Sun Microsystems Laboratories)]
2928 *) Add the possibility to load symbols globally with DSO.
2929 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2931 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2932 control of the error stack.
2935 *) Add support for STORE in ENGINE.
2938 *) Add the STORE type. The intention is to provide a common interface
2939 to certificate and key stores, be they simple file-based stores, or
2940 HSM-type store, or LDAP stores, or...
2941 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2944 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2945 pass a list of arguments to any function as well as provide a way
2946 for a function to pass data back to the caller.
2949 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2950 works like BUF_strdup() but can be used to duplicate a portion of
2951 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2955 *) Add the function sk_find_ex() which works like sk_find(), but will
2956 return an index to an element even if an exact match couldn't be
2957 found. The index is guaranteed to point at the element where the
2958 searched-for key would be inserted to preserve sorting order.
2961 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2962 takes an extra flags argument for optional functionality. Currently,
2963 the following flags are defined:
2965 OBJ_BSEARCH_VALUE_ON_NOMATCH
2966 This one gets OBJ_bsearch_ex() to return a pointer to the first
2967 element where the comparing function returns a negative or zero
2970 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2971 This one gets OBJ_bsearch_ex() to return a pointer to the first
2972 element where the comparing function returns zero. This is useful
2973 if there are more than one element where the comparing function
2977 *) Make it possible to create self-signed certificates with 'openssl ca'
2978 in such a way that the self-signed certificate becomes part of the
2979 CA database and uses the same mechanisms for serial number generation
2980 as all other certificate signing. The new flag '-selfsign' enables
2981 this functionality. Adapt CA.sh and CA.pl.in.
2984 *) Add functionality to check the public key of a certificate request
2985 against a given private. This is useful to check that a certificate
2986 request can be signed by that key (self-signing).
2989 *) Make it possible to have multiple active certificates with the same
2990 subject in the CA index file. This is done only if the keyword
2991 'unique_subject' is set to 'no' in the main CA section (default
2992 if 'CA_default') of the configuration file. The value is saved
2993 with the database itself in a separate index attribute file,
2994 named like the index file with '.attr' appended to the name.
2997 *) Generate muti valued AVAs using '+' notation in config files for
3001 *) Support for nameConstraints certificate extension.
3004 *) Support for policyConstraints certificate extension.
3007 *) Support for policyMappings certificate extension.
3010 *) Make sure the default DSA_METHOD implementation only uses its
3011 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3012 and change its own handlers to be NULL so as to remove unnecessary
3013 indirection. This lets alternative implementations fallback to the
3014 default implementation more easily.
3017 *) Support for directoryName in GeneralName related extensions
3021 *) Make it possible to link applications using Makefile.shared.
3022 Make that possible even when linking against static libraries!
3025 *) Support for single pass processing for S/MIME signing. This now
3026 means that S/MIME signing can be done from a pipe, in addition
3027 cleartext signing (multipart/signed type) is effectively streaming
3028 and the signed data does not need to be all held in memory.
3030 This is done with a new flag PKCS7_STREAM. When this flag is set
3031 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3032 is done after the data is output (and digests calculated) in
3033 SMIME_write_PKCS7().
3036 *) Add full support for -rpath/-R, both in shared libraries and
3037 applications, at least on the platforms where it's known how
3041 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3042 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3043 will now compute a table of multiples of the generator that
3044 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3045 faster (notably in the case of a single point multiplication,
3046 scalar * generator).
3047 [Nils Larsch, Bodo Moeller]
3049 *) IPv6 support for certificate extensions. The various extensions
3050 which use the IP:a.b.c.d can now take IPv6 addresses using the
3051 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3055 *) Added an ENGINE that implements RSA by performing private key
3056 exponentiations with the GMP library. The conversions to and from
3057 GMP's mpz_t format aren't optimised nor are any montgomery forms
3058 cached, and on x86 it appears OpenSSL's own performance has caught up.
3059 However there are likely to be other architectures where GMP could
3060 provide a boost. This ENGINE is not built in by default, but it can be
3061 specified at Configure time and should be accompanied by the necessary
3062 linker additions, eg;
3063 ./config -DOPENSSL_USE_GMP -lgmp
3066 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3067 testing availability of engines with "-t" - the old behaviour is
3068 produced by increasing the feature's verbosity with "-tt".
3071 *) ECDSA routines: under certain error conditions uninitialized BN objects
3072 could be freed. Solution: make sure initialization is performed early
3073 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3077 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3078 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3079 software implementations. For DSA and DH, parameter generation can
3080 also be overriden by providing the appropriate method callbacks.
3083 *) Change the "progress" mechanism used in key-generation and
3084 primality testing to functions that take a new BN_GENCB pointer in
3085 place of callback/argument pairs. The new API functions have "_ex"
3086 postfixes and the older functions are reimplemented as wrappers for
3087 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3088 declarations of the old functions to help (graceful) attempts to
3089 migrate to the new functions. Also, the new key-generation API
3090 functions operate on a caller-supplied key-structure and return
3091 success/failure rather than returning a key or NULL - this is to
3092 help make "keygen" another member function of RSA_METHOD etc.
3094 Example for using the new callback interface:
3096 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3100 BN_GENCB_set(&my_cb, my_callback, my_arg);
3102 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3103 /* For the meaning of a, b in calls to my_callback(), see the
3104 * documentation of the function that calls the callback.
3105 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3106 * my_callback should return 1 if it wants BN_is_prime_ex()
3107 * to continue, or 0 to stop.
3112 *) Change the ZLIB compression method to be stateful, and make it
3113 available to TLS with the number defined in
3114 draft-ietf-tls-compression-04.txt.
3117 *) Add the ASN.1 structures and functions for CertificatePair, which
3118 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3120 CertificatePair ::= SEQUENCE {
3121 forward [0] Certificate OPTIONAL,
3122 reverse [1] Certificate OPTIONAL,
3123 -- at least one of the pair shall be present -- }
3125 Also implement the PEM functions to read and write certificate
3126 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3128 This needed to be defined, mostly for the sake of the LDAP
3129 attribute crossCertificatePair, but may prove useful elsewhere as
3133 *) Make it possible to inhibit symlinking of shared libraries in
3134 Makefile.shared, for Cygwin's sake.
3137 *) Extend the BIGNUM API by creating a function
3138 void BN_set_negative(BIGNUM *a, int neg);
3139 and a macro that behave like
3140 int BN_is_negative(const BIGNUM *a);
3142 to avoid the need to access 'a->neg' directly in applications.
3145 *) Implement fast modular reduction for pseudo-Mersenne primes
3146 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3147 EC_GROUP_new_curve_GFp() will now automatically use this
3149 [Nils Larsch <nla@trustcenter.de>]
3151 *) Add new lock type (CRYPTO_LOCK_BN).
3154 *) Change the ENGINE framework to automatically load engines
3155 dynamically from specific directories unless they could be
3156 found to already be built in or loaded. Move all the
3157 current engines except for the cryptodev one to a new
3159 The engines in engines/ are built as shared libraries if
3160 the "shared" options was given to ./Configure or ./config.
3161 Otherwise, they are inserted in libcrypto.a.
3162 /usr/local/ssl/engines is the default directory for dynamic
3163 engines, but that can be overriden at configure time through
3164 the usual use of --prefix and/or --openssldir, and at run
3165 time with the environment variable OPENSSL_ENGINES.
3166 [Geoff Thorpe and Richard Levitte]
3168 *) Add Makefile.shared, a helper makefile to build shared
3169 libraries. Addapt Makefile.org.
3172 *) Add version info to Win32 DLLs.
3173 [Peter 'Luna' Runestig" <peter@runestig.com>]
3175 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3176 can be added using this API to created arbitrary PKCS#12
3177 files while avoiding the low level API.
3179 New options to PKCS12_create(), key or cert can be NULL and
3180 will then be omitted from the output file. The encryption
3181 algorithm NIDs can be set to -1 for no encryption, the mac
3182 iteration count can be set to 0 to omit the mac.
3184 Enhance pkcs12 utility by making the -nokeys and -nocerts
3185 options work when creating a PKCS#12 file. New option -nomac
3186 to omit the mac, NONE can be set for an encryption algorithm.
3187 New code is modified to use the enhanced PKCS12_create()
3188 instead of the low level API.
3191 *) Extend ASN1 encoder to support indefinite length constructed
3192 encoding. This can output sequences tags and octet strings in
3193 this form. Modify pk7_asn1.c to support indefinite length
3194 encoding. This is experimental and needs additional code to
3195 be useful, such as an ASN1 bio and some enhanced streaming
3198 Extend template encode functionality so that tagging is passed
3199 down to the template encoder.
3202 *) Let 'openssl req' fail if an argument to '-newkey' is not
3203 recognized instead of using RSA as a default.
3206 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3207 As these are not official, they are not included in "ALL";
3208 the "ECCdraft" ciphersuite group alias can be used to select them.
3209 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3211 *) Add ECDH engine support.
3212 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3214 *) Add ECDH in new directory crypto/ecdh/.
3215 [Douglas Stebila (Sun Microsystems Laboratories)]
3217 *) Let BN_rand_range() abort with an error after 100 iterations
3218 without success (which indicates a broken PRNG).
3221 *) Change BN_mod_sqrt() so that it verifies that the input value
3222 is really the square of the return value. (Previously,
3223 BN_mod_sqrt would show GIGO behaviour.)
3226 *) Add named elliptic curves over binary fields from X9.62, SECG,
3227 and WAP/WTLS; add OIDs that were still missing.
3229 [Sheueling Chang Shantz and Douglas Stebila
3230 (Sun Microsystems Laboratories)]
3232 *) Extend the EC library for elliptic curves over binary fields
3233 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3236 EC_GF2m_simple_method
3240 EC_GROUP_new_curve_GF2m
3241 EC_GROUP_set_curve_GF2m
3242 EC_GROUP_get_curve_GF2m
3243 EC_POINT_set_affine_coordinates_GF2m
3244 EC_POINT_get_affine_coordinates_GF2m
3245 EC_POINT_set_compressed_coordinates_GF2m
3247 Point compression for binary fields is disabled by default for
3248 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3251 As binary polynomials are represented as BIGNUMs, various members
3252 of the EC_GROUP and EC_POINT data structures can be shared
3253 between the implementations for prime fields and binary fields;
3254 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3255 are essentially identical to their ..._GFp counterparts.
3256 (For simplicity, the '..._GFp' prefix has been dropped from
3257 various internal method names.)
3259 An internal 'field_div' method (similar to 'field_mul' and
3260 'field_sqr') has been added; this is used only for binary fields.
3262 [Sheueling Chang Shantz and Douglas Stebila
3263 (Sun Microsystems Laboratories)]
3265 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3266 through methods ('mul', 'precompute_mult').
3268 The generic implementations (now internally called 'ec_wNAF_mul'
3269 and 'ec_wNAF_precomputed_mult') remain the default if these
3270 methods are undefined.
3272 [Sheueling Chang Shantz and Douglas Stebila
3273 (Sun Microsystems Laboratories)]
3275 *) New function EC_GROUP_get_degree, which is defined through
3276 EC_METHOD. For curves over prime fields, this returns the bit
3277 length of the modulus.
3279 [Sheueling Chang Shantz and Douglas Stebila
3280 (Sun Microsystems Laboratories)]
3282 *) New functions EC_GROUP_dup, EC_POINT_dup.
3283 (These simply call ..._new and ..._copy).
3285 [Sheueling Chang Shantz and Douglas Stebila
3286 (Sun Microsystems Laboratories)]
3288 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3289 Polynomials are represented as BIGNUMs (where the sign bit is not
3290 used) in the following functions [macros]:
3293 BN_GF2m_sub [= BN_GF2m_add]
3294 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3295 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3296 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3298 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3299 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3300 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3301 BN_GF2m_cmp [= BN_ucmp]
3303 (Note that only the 'mod' functions are actually for fields GF(2^m).
3304 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3306 For some functions, an the irreducible polynomial defining a
3307 field can be given as an 'unsigned int[]' with strictly
3308 decreasing elements giving the indices of those bits that are set;
3309 i.e., p[] represents the polynomial
3310 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3312 p[0] > p[1] > ... > p[k] = 0.
3313 This applies to the following functions:
3318 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3319 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3321 BN_GF2m_mod_sqrt_arr
3322 BN_GF2m_mod_solve_quad_arr
3326 Conversion can be performed by the following functions:
3331 bntest.c has additional tests for binary polynomial arithmetic.
3333 Two implementations for BN_GF2m_mod_div() are available.
3334 The default algorithm simply uses BN_GF2m_mod_inv() and
3335 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3336 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3337 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3339 [Sheueling Chang Shantz and Douglas Stebila
3340 (Sun Microsystems Laboratories)]
3342 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3343 functionality is disabled at compile-time.
3344 [Douglas Stebila <douglas.stebila@sun.com>]
3346 *) Change default behaviour of 'openssl asn1parse' so that more
3347 information is visible when viewing, e.g., a certificate:
3349 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3350 mode the content of non-printable OCTET STRINGs is output in a
3351 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3352 avoid the appearance of a printable string.
3353 [Nils Larsch <nla@trustcenter.de>]
3355 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3357 EC_GROUP_set_asn1_flag()
3358 EC_GROUP_get_asn1_flag()
3359 EC_GROUP_set_point_conversion_form()
3360 EC_GROUP_get_point_conversion_form()
3361 These control ASN1 encoding details:
3362 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3363 has been set to OPENSSL_EC_NAMED_CURVE.
3364 - Points are encoded in uncompressed form by default; options for
3365 asn1_for are as for point2oct, namely
3366 POINT_CONVERSION_COMPRESSED
3367 POINT_CONVERSION_UNCOMPRESSED
3368 POINT_CONVERSION_HYBRID
3370 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3373 EC_GROUP_get0_seed()
3374 EC_GROUP_get_seed_len()
3375 This is used only for ASN1 purposes (so far).
3376 [Nils Larsch <nla@trustcenter.de>]
3378 *) Add 'field_type' member to EC_METHOD, which holds the NID
3379 of the appropriate field type OID. The new function
3380 EC_METHOD_get_field_type() returns this value.
3381 [Nils Larsch <nla@trustcenter.de>]
3386 EC_POINT_point2hex()
3387 EC_POINT_hex2point()
3388 providing useful interfaces to EC_POINT_point2oct() and
3389 EC_POINT_oct2point().
3390 [Nils Larsch <nla@trustcenter.de>]
3392 *) Change internals of the EC library so that the functions
3393 EC_GROUP_set_generator()
3394 EC_GROUP_get_generator()
3395 EC_GROUP_get_order()
3396 EC_GROUP_get_cofactor()
3397 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3398 to methods, which would lead to unnecessary code duplication when
3399 adding different types of curves.
3400 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3402 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3403 arithmetic, and such that modified wNAFs are generated
3404 (which avoid length expansion in many cases).
3407 *) Add a function EC_GROUP_check_discriminant() (defined via
3408 EC_METHOD) that verifies that the curve discriminant is non-zero.
3410 Add a function EC_GROUP_check() that makes some sanity tests
3411 on a EC_GROUP, its generator and order. This includes
3412 EC_GROUP_check_discriminant().
3413 [Nils Larsch <nla@trustcenter.de>]
3415 *) Add ECDSA in new directory crypto/ecdsa/.
3417 Add applications 'openssl ecparam' and 'openssl ecdsa'
3418 (these are based on 'openssl dsaparam' and 'openssl dsa').
3420 ECDSA support is also included in various other files across the
3421 library. Most notably,
3422 - 'openssl req' now has a '-newkey ecdsa:file' option;
3423 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3424 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3425 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3426 them suitable for ECDSA where domain parameters must be
3427 extracted before the specific public key;
3428 - ECDSA engine support has been added.
3429 [Nils Larsch <nla@trustcenter.de>]
3431 *) Include some named elliptic curves, and add OIDs from X9.62,
3432 SECG, and WAP/WTLS. Each curve can be obtained from the new
3434 EC_GROUP_new_by_curve_name(),
3435 and the list of available named curves can be obtained with
3436 EC_get_builtin_curves().
3437 Also add a 'curve_name' member to EC_GROUP objects, which can be
3439 EC_GROUP_set_curve_name()
3440 EC_GROUP_get_curve_name()
3441 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3443 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3444 was actually never needed) and in BN_mul(). The removal in BN_mul()
3445 required a small change in bn_mul_part_recursive() and the addition
3446 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3447 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3448 bn_sub_words() and bn_add_words() except they take arrays with
3452 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3454 *) Cleanse PEM buffers before freeing them since they may contain
3456 [Benjamin Bennett <ben@psc.edu>]
3458 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3459 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3460 authentication-only ciphersuites.
3463 *) Since AES128 and AES256 share a single mask bit in the logic of
3464 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3465 kludge to work properly if AES128 is available and AES256 isn't.
3468 *) Expand security boundary to match 1.1.1 module.
3471 *) Remove redundant features: hash file source, editing of test vectors
3472 modify fipsld to use external fips_premain.c signature.
3475 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3476 run algorithm test programs.
3479 *) Make algorithm test programs more tolerant of whitespace.
3482 *) Have SSL/TLS server implementation tolerate "mismatched" record
3483 protocol version while receiving ClientHello even if the
3484 ClientHello is fragmented. (The server can't insist on the
3485 particular protocol version it has chosen before the ServerHello
3486 message has informed the client about his choice.)
3489 *) Load error codes if they are not already present instead of using a
3490 static variable. This allows them to be cleanly unloaded and reloaded.
3493 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3495 *) Introduce limits to prevent malicious keys being able to
3496 cause a denial of service. (CVE-2006-2940)
3497 [Steve Henson, Bodo Moeller]
3499 *) Fix ASN.1 parsing of certain invalid structures that can result
3500 in a denial of service. (CVE-2006-2937) [Steve Henson]
3502 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3503 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3505 *) Fix SSL client code which could crash if connecting to a
3506 malicious SSLv2 server. (CVE-2006-4343)
3507 [Tavis Ormandy and Will Drewry, Google Security Team]
3509 *) Change ciphersuite string processing so that an explicit
3510 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3511 will no longer include "AES128-SHA"), and any other similar
3512 ciphersuite (same bitmap) from *other* protocol versions (so that
3513 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3514 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3515 changes from 0.9.8b and 0.9.8d.
3518 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3520 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3521 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3523 *) Change the Unix randomness entropy gathering to use poll() when
3524 possible instead of select(), since the latter has some
3525 undesirable limitations.
3526 [Darryl Miles via Richard Levitte and Bodo Moeller]
3528 *) Disable rogue ciphersuites:
3530 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3531 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3532 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3534 The latter two were purportedly from
3535 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3538 Also deactive the remaining ciphersuites from
3539 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3540 unofficial, and the ID has long expired.
3543 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3544 dual-core machines) and other potential thread-safety issues.
3547 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3549 *) Adapt fipsld and the build system to link against the validated FIPS
3550 module in FIPS mode.
3553 *) Fixes for VC++ 2005 build under Windows.
3556 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3557 from a Windows bash shell such as MSYS. It is autodetected from the
3558 "config" script when run from a VC++ environment. Modify standard VC++
3559 build to use fipscanister.o from the GNU make build.
3562 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3564 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3565 The value now differs depending on if you build for FIPS or not.
3566 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3567 safely run with a non-FIPSed libcrypto, as it may crash because of
3568 the difference induced by this change.
3571 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3573 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3574 (part of SSL_OP_ALL). This option used to disable the
3575 countermeasure against man-in-the-middle protocol-version
3576 rollback in the SSL 2.0 server implementation, which is a bad
3577 idea. (CVE-2005-2969)
3579 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3580 for Information Security, National Institute of Advanced Industrial
3581 Science and Technology [AIST], Japan)]
3583 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3584 mainly for FIPS compliance and not fully integrated at this stage.
3587 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3588 the exponentiation using a fixed-length exponent. (Otherwise,
3589 the information leaked through timing could expose the secret key
3590 after many signatures; cf. Bleichenbacher's attack on DSA with
3594 *) Make a new fixed-window mod_exp implementation the default for
3595 RSA, DSA, and DH private-key operations so that the sequence of
3596 squares and multiplies and the memory access pattern are
3597 independent of the particular secret key. This will mitigate
3598 cache-timing and potential related attacks.
3600 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3601 and this is automatically used by BN_mod_exp_mont() if the new flag
3602 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3603 will use this BN flag for private exponents unless the flag
3604 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3605 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3607 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3609 *) Change the client implementation for SSLv23_method() and
3610 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3611 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3612 (Previously, the SSL 2.0 backwards compatible Client Hello
3613 message format would be used even with SSL_OP_NO_SSLv2.)
3616 *) Add support for smime-type MIME parameter in S/MIME messages which some
3620 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3621 a threadsafe manner. Modify rsa code to use new function and add calls
3622 to dsa and dh code (which had race conditions before).
3625 *) Include the fixed error library code in the C error file definitions
3626 instead of fixing them up at runtime. This keeps the error code
3627 structures constant.
3630 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3632 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3635 *) Fixes for newer kerberos headers. NB: the casts are needed because
3636 the 'length' field is signed on one version and unsigned on another
3637 with no (?) obvious way to tell the difference, without these VC++
3638 complains. Also the "definition" of FAR (blank) is no longer included
3639 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3640 some needed definitions.
3643 *) Undo Cygwin change.
3646 *) Added support for proxy certificates according to RFC 3820.
3647 Because they may be a security thread to unaware applications,
3648 they must be explicitely allowed in run-time. See
3649 docs/HOWTO/proxy_certificates.txt for further information.
3652 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3654 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3655 server and client random values. Previously
3656 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3657 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3659 This change has negligible security impact because:
3661 1. Server and client random values still have 24 bytes of pseudo random
3664 2. Server and client random values are sent in the clear in the initial
3667 3. The master secret is derived using the premaster secret (48 bytes in
3668 size for static RSA ciphersuites) as well as client server and random
3671 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3674 [Stephen Henson, reported by UK NISCC]
3676 *) Use Windows randomness collection on Cygwin.
3679 *) Fix hang in EGD/PRNGD query when communication socket is closed
3680 prematurely by EGD/PRNGD.
3681 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3683 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3686 *) Back-port of selected performance improvements from development
3687 branch, as well as improved support for PowerPC platforms.
3690 *) Add lots of checks for memory allocation failure, error codes to indicate
3691 failure and freeing up memory if a failure occurs.
3692 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3694 *) Add new -passin argument to dgst.
3697 *) Perform some character comparisons of different types in X509_NAME_cmp:
3698 this is needed for some certificates that reencode DNs into UTF8Strings
3699 (in violation of RFC3280) and can't or wont issue name rollover
3703 *) Make an explicit check during certificate validation to see that
3704 the CA setting in each certificate on the chain is correct. As a
3705 side effect always do the following basic checks on extensions,
3706 not just when there's an associated purpose to the check:
3708 - if there is an unhandled critical extension (unless the user
3709 has chosen to ignore this fault)
3710 - if the path length has been exceeded (if one is set at all)
3711 - that certain extensions fit the associated purpose (if one has
3715 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3717 *) Avoid a race condition when CRLs are checked in a multi threaded
3718 environment. This would happen due to the reordering of the revoked
3719 entries during signature checking and serial number lookup. Now the
3720 encoding is cached and the serial number sort performed under a lock.
3721 Add new STACK function sk_is_sorted().
3724 *) Add Delta CRL to the extension code.
3727 *) Various fixes to s3_pkt.c so alerts are sent properly.
3728 [David Holmes <d.holmes@f5.com>]
3730 *) Reduce the chances of duplicate issuer name and serial numbers (in
3731 violation of RFC3280) using the OpenSSL certificate creation utilities.
3732 This is done by creating a random 64 bit value for the initial serial
3733 number when a serial number file is created or when a self signed
3734 certificate is created using 'openssl req -x509'. The initial serial
3735 number file is created using 'openssl x509 -next_serial' in CA.pl
3736 rather than being initialized to 1.
3739 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3741 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3742 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3743 [Joe Orton, Steve Henson]
3745 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3747 [Joe Orton, Steve Henson]
3749 *) Make it possible to have multiple active certificates with the same
3750 subject in the CA index file. This is done only if the keyword
3751 'unique_subject' is set to 'no' in the main CA section (default
3752 if 'CA_default') of the configuration file. The value is saved
3753 with the database itself in a separate index attribute file,
3754 named like the index file with '.attr' appended to the name.
3757 *) X509 verify fixes. Disable broken certificate workarounds when
3758 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3759 keyUsage extension present. Don't accept CRLs with unhandled critical
3760 extensions: since verify currently doesn't process CRL extensions this
3761 rejects a CRL with *any* critical extensions. Add new verify error codes
3765 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3766 A clarification of RFC2560 will require the use of OCTET STRINGs and
3767 some implementations cannot handle the current raw format. Since OpenSSL
3768 copies and compares OCSP nonces as opaque blobs without any attempt at
3769 parsing them this should not create any compatibility issues.
3772 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3773 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3774 this HMAC (and other) operations are several times slower than OpenSSL
3778 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3779 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3781 *) Use the correct content when signing type "other".
3784 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3786 *) Fix various bugs revealed by running the NISCC test suite:
3788 Stop out of bounds reads in the ASN1 code when presented with
3789 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3791 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3793 If verify callback ignores invalid public key errors don't try to check
3794 certificate signature with the NULL public key.
3798 *) New -ignore_err option in ocsp application to stop the server
3799 exiting on the first error in a request.
3802 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3803 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3807 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3808 extra data after the compression methods not only for TLS 1.0
3809 but also for SSL 3.0 (as required by the specification).
3810 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3812 *) Change X509_certificate_type() to mark the key as exported/exportable
3813 when it's 512 *bits* long, not 512 bytes.
3816 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3817 blocks during encryption.
3820 *) Various fixes to base64 BIO and non blocking I/O. On write
3821 flushes were not handled properly if the BIO retried. On read
3822 data was not being buffered properly and had various logic bugs.
3823 This also affects blocking I/O when the data being decoded is a
3827 *) Various S/MIME bugfixes and compatibility changes:
3828 output correct application/pkcs7 MIME type if
3829 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3830 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3831 of files as .eml work). Correctly handle very long lines in MIME
3835 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3837 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3838 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3839 a protocol version number mismatch like a decryption error
3840 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3843 *) Turn on RSA blinding by default in the default implementation
3844 to avoid a timing attack. Applications that don't want it can call
3845 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3846 They would be ill-advised to do so in most cases.
3847 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3849 *) Change RSA blinding code so that it works when the PRNG is not
3850 seeded (in this case, the secret RSA exponent is abused as
3851 an unpredictable seed -- if it is not unpredictable, there
3852 is no point in blinding anyway). Make RSA blinding thread-safe
3853 by remembering the creator's thread ID in rsa->blinding and
3854 having all other threads use local one-time blinding factors
3855 (this requires more computation than sharing rsa->blinding, but
3856 avoids excessive locking; and if an RSA object is not shared
3857 between threads, blinding will still be very fast).
3860 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3861 ENGINE as defaults for all supported algorithms irrespective of
3862 the 'flags' parameter. 'flags' is now honoured, so applications
3863 should make sure they are passing it correctly.
3866 *) Target "mingw" now allows native Windows code to be generated in
3867 the Cygwin environment as well as with the MinGW compiler.
3870 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3872 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3873 via timing by performing a MAC computation even if incorrrect
3874 block cipher padding has been found. This is a countermeasure
3875 against active attacks where the attacker has to distinguish
3876 between bad padding and a MAC verification error. (CVE-2003-0078)
3878 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3879 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3880 Martin Vuagnoux (EPFL, Ilion)]
3882 *) Make the no-err option work as intended. The intention with no-err
3883 is not to have the whole error stack handling routines removed from
3884 libcrypto, it's only intended to remove all the function name and
3885 reason texts, thereby removing some of the footprint that may not
3886 be interesting if those errors aren't displayed anyway.
3888 NOTE: it's still possible for any application or module to have it's
3889 own set of error texts inserted. The routines are there, just not
3890 used by default when no-err is given.
3893 *) Add support for FreeBSD on IA64.
3894 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3896 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3897 Kerberos function mit_des_cbc_cksum(). Before this change,
3898 the value returned by DES_cbc_cksum() was like the one from
3899 mit_des_cbc_cksum(), except the bytes were swapped.
3900 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3902 *) Allow an application to disable the automatic SSL chain building.
3903 Before this a rather primitive chain build was always performed in
3904 ssl3_output_cert_chain(): an application had no way to send the
3905 correct chain if the automatic operation produced an incorrect result.
3907 Now the chain builder is disabled if either:
3909 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3911 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3913 The reasoning behind this is that an application would not want the
3914 auto chain building to take place if extra chain certificates are
3915 present and it might also want a means of sending no additional
3916 certificates (for example the chain has two certificates and the
3920 *) Add the possibility to build without the ENGINE framework.
3921 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3923 *) Under Win32 gmtime() can return NULL: check return value in
3924 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3927 *) DSA routines: under certain error conditions uninitialized BN objects
3928 could be freed. Solution: make sure initialization is performed early
3929 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3930 Nils Larsch <nla@trustcenter.de> via PR#459)
3933 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3934 checked on reconnect on the client side, therefore session resumption
3935 could still fail with a "ssl session id is different" error. This
3936 behaviour is masked when SSL_OP_ALL is used due to
3937 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3938 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3939 followup to PR #377.
3942 *) IA-32 assembler support enhancements: unified ELF targets, support
3943 for SCO/Caldera platforms, fix for Cygwin shared build.
3946 *) Add support for FreeBSD on sparc64. As a consequence, support for
3947 FreeBSD on non-x86 processors is separate from x86 processors on
3948 the config script, much like the NetBSD support.
3949 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3951 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3953 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3956 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3957 code (06) was taken as the first octet of the session ID and the last
3958 octet was ignored consequently. As a result SSLv2 client side session
3959 caching could not have worked due to the session ID mismatch between
3961 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3965 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3966 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3970 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3971 seems that in spite of existing for more than a year, many application
3972 author have done nothing to provide the necessary callbacks, which
3973 means that this particular engine will not work properly anywhere.
3974 This is a very unfortunate situation which forces us, in the name
3975 of usability, to give the hw_ncipher.c a static lock, which is part
3977 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3978 appear in 0.9.8 or later. We EXPECT application authors to have
3979 dealt properly with this when 0.9.8 is released (unless we actually
3980 make such changes in the libcrypto locking code that changes will
3981 have to be made anyway).
3984 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3985 octets have been read, EOF or an error occurs. Without this change
3986 some truncated ASN1 structures will not produce an error.
3989 *) Disable Heimdal support, since it hasn't been fully implemented.
3990 Still give the possibility to force the use of Heimdal, but with
3991 warnings and a request that patches get sent to openssl-dev.
3994 *) Add the VC-CE target, introduce the WINCE sysname, and add
3995 INSTALL.WCE and appropriate conditionals to make it build.
3996 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3998 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3999 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4000 edit numbers of the version.
4001 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4003 *) Introduce safe string copy and catenation functions
4004 (BUF_strlcpy() and BUF_strlcat()).
4005 [Ben Laurie (CHATS) and Richard Levitte]
4007 *) Avoid using fixed-size buffers for one-line DNs.
4008 [Ben Laurie (CHATS)]
4010 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4011 resizing buffers containing secrets, and use where appropriate.
4012 [Ben Laurie (CHATS)]
4014 *) Avoid using fixed size buffers for configuration file location.
4015 [Ben Laurie (CHATS)]
4017 *) Avoid filename truncation for various CA files.
4018 [Ben Laurie (CHATS)]
4020 *) Use sizeof in preference to magic numbers.
4021 [Ben Laurie (CHATS)]
4023 *) Avoid filename truncation in cert requests.
4024 [Ben Laurie (CHATS)]
4026 *) Add assertions to check for (supposedly impossible) buffer
4028 [Ben Laurie (CHATS)]
4030 *) Don't cache truncated DNS entries in the local cache (this could
4031 potentially lead to a spoofing attack).
4032 [Ben Laurie (CHATS)]
4034 *) Fix various buffers to be large enough for hex/decimal
4035 representations in a platform independent manner.
4036 [Ben Laurie (CHATS)]
4038 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4039 resizing buffers containing secrets, and use where appropriate.
4040 [Ben Laurie (CHATS)]
4042 *) Add BIO_indent() to avoid much slightly worrying code to do
4044 [Ben Laurie (CHATS)]
4046 *) Convert sprintf()/BIO_puts() to BIO_printf().
4047 [Ben Laurie (CHATS)]
4049 *) buffer_gets() could terminate with the buffer only half
4051 [Ben Laurie (CHATS)]
4053 *) Add assertions to prevent user-supplied crypto functions from
4054 overflowing internal buffers by having large block sizes, etc.
4055 [Ben Laurie (CHATS)]
4057 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4059 [Ben Laurie (CHATS)]
4061 *) Eliminate unused copy of key in RC4.
4062 [Ben Laurie (CHATS)]
4064 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4065 [Ben Laurie (CHATS)]
4067 *) Fix off-by-one error in EGD path.
4068 [Ben Laurie (CHATS)]
4070 *) If RANDFILE path is too long, ignore instead of truncating.
4071 [Ben Laurie (CHATS)]
4073 *) Eliminate unused and incorrectly sized X.509 structure
4075 [Ben Laurie (CHATS)]
4077 *) Eliminate unused and dangerous function knumber().
4078 [Ben Laurie (CHATS)]
4080 *) Eliminate unused and dangerous structure, KSSL_ERR.
4081 [Ben Laurie (CHATS)]
4083 *) Protect against overlong session ID context length in an encoded
4084 session object. Since these are local, this does not appear to be
4086 [Ben Laurie (CHATS)]
4088 *) Change from security patch (see 0.9.6e below) that did not affect
4089 the 0.9.6 release series:
4091 Remote buffer overflow in SSL3 protocol - an attacker could
4092 supply an oversized master key in Kerberos-enabled versions.
4094 [Ben Laurie (CHATS)]
4096 *) Change the SSL kerb5 codes to match RFC 2712.
4099 *) Make -nameopt work fully for req and add -reqopt switch.
4100 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4102 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4103 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4105 *) Make sure tests can be performed even if the corresponding algorithms
4106 have been removed entirely. This was also the last step to make
4107 OpenSSL compilable with DJGPP under all reasonable conditions.
4108 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4110 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4111 to allow version independent disabling of normally unselected ciphers,
4112 which may be activated as a side-effect of selecting a single cipher.
4114 (E.g., cipher list string "RSA" enables ciphersuites that are left
4115 out of "ALL" because they do not provide symmetric encryption.
4116 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4117 [Lutz Jaenicke, Bodo Moeller]
4119 *) Add appropriate support for separate platform-dependent build
4120 directories. The recommended way to make a platform-dependent
4121 build directory is the following (tested on Linux), maybe with
4124 # Place yourself outside of the OpenSSL source tree. In
4125 # this example, the environment variable OPENSSL_SOURCE
4126 # is assumed to contain the absolute OpenSSL source directory.
4127 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4128 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4129 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4130 mkdir -p `dirname $F`
4131 ln -s $OPENSSL_SOURCE/$F $F
4134 To be absolutely sure not to disturb the source tree, a "make clean"
4135 is a good thing. If it isn't successfull, don't worry about it,
4136 it probably means the source directory is very clean.
4139 *) Make sure any ENGINE control commands make local copies of string
4140 pointers passed to them whenever necessary. Otherwise it is possible
4141 the caller may have overwritten (or deallocated) the original string
4142 data when a later ENGINE operation tries to use the stored values.
4143 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4145 *) Improve diagnostics in file reading and command-line digests.
4146 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4148 *) Add AES modes CFB and OFB to the object database. Correct an
4149 error in AES-CFB decryption.
4152 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4153 allows existing EVP_CIPHER_CTX structures to be reused after
4154 calling EVP_*Final(). This behaviour is used by encryption
4155 BIOs and some applications. This has the side effect that
4156 applications must explicitly clean up cipher contexts with
4157 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4160 *) Check the values of dna and dnb in bn_mul_recursive before calling
4161 bn_mul_comba (a non zero value means the a or b arrays do not contain
4162 n2 elements) and fallback to bn_mul_normal if either is not zero.
4165 *) Fix escaping of non-ASCII characters when using the -subj option
4166 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4169 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4170 form for "surname", serialNumber has no short form.
4171 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4172 therefore remove "mail" short name for "internet 7".
4173 The OID for unique identifiers in X509 certificates is
4174 x500UniqueIdentifier, not uniqueIdentifier.
4175 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4178 *) Add an "init" command to the ENGINE config module and auto initialize
4179 ENGINEs. Without any "init" command the ENGINE will be initialized
4180 after all ctrl commands have been executed on it. If init=1 the
4181 ENGINE is initailized at that point (ctrls before that point are run
4182 on the uninitialized ENGINE and after on the initialized one). If
4183 init=0 then the ENGINE will not be iniatialized at all.
4186 *) Fix the 'app_verify_callback' interface so that the user-defined
4187 argument is actually passed to the callback: In the
4188 SSL_CTX_set_cert_verify_callback() prototype, the callback
4189 declaration has been changed from
4192 int (*cb)(X509_STORE_CTX *,void *);
4193 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4194 i=s->ctx->app_verify_callback(&ctx)
4195 has been changed into
4196 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4198 To update applications using SSL_CTX_set_cert_verify_callback(),
4199 a dummy argument can be added to their callback functions.
4200 [D. K. Smetters <smetters@parc.xerox.com>]
4202 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4203 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4205 *) Add and OPENSSL_LOAD_CONF define which will cause
4206 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4207 This allows older applications to transparently support certain
4208 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4209 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4210 load the config file and OPENSSL_add_all_algorithms_conf() which will
4211 always load it have also been added.
4214 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4215 Adjust NIDs and EVP layer.
4216 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4218 *) Config modules support in openssl utility.
4220 Most commands now load modules from the config file,
4221 though in a few (such as version) this isn't done
4222 because it couldn't be used for anything.
4224 In the case of ca and req the config file used is
4225 the same as the utility itself: that is the -config
4226 command line option can be used to specify an
4230 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4231 use "openssl_conf" if filename is NULL use default openssl config file.
4234 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4235 config section name. Add a new flag to tolerate a missing config file
4236 and move code to CONF_modules_load_file().
4239 *) Support for crypto accelerator cards from Accelerated Encryption
4240 Processing, www.aep.ie. (Use engine 'aep')
4241 The support was copied from 0.9.6c [engine] and adapted/corrected
4242 to work with the new engine framework.
4243 [AEP Inc. and Richard Levitte]
4245 *) Support for SureWare crypto accelerator cards from Baltimore
4246 Technologies. (Use engine 'sureware')
4247 The support was copied from 0.9.6c [engine] and adapted
4248 to work with the new engine framework.
4251 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4252 make the newer ENGINE framework commands for the CHIL engine work.
4253 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4255 *) Make it possible to produce shared libraries on ReliantUNIX.
4256 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4258 *) Add the configuration target debug-linux-ppro.
4259 Make 'openssl rsa' use the general key loading routines
4260 implemented in apps.c, and make those routines able to
4261 handle the key format FORMAT_NETSCAPE and the variant
4263 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4265 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4266 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4268 *) Add -keyform to rsautl, and document -engine.
4269 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4271 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4272 BIO_R_NO_SUCH_FILE error code rather than the generic
4273 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4276 *) Add new functions
4278 ERR_peek_last_error_line
4279 ERR_peek_last_error_line_data.
4280 These are similar to
4283 ERR_peek_error_line_data,
4284 but report on the latest error recorded rather than the first one
4285 still in the error queue.
4286 [Ben Laurie, Bodo Moeller]
4288 *) default_algorithms option in ENGINE config module. This allows things
4290 default_algorithms = ALL
4291 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4294 *) Prelminary ENGINE config module.
4297 *) New experimental application configuration code.
4300 *) Change the AES code to follow the same name structure as all other
4301 symmetric ciphers, and behave the same way. Move everything to
4302 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4303 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4305 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4306 [Ben Laurie and Theo de Raadt]
4308 *) Add option to output public keys in req command.
4309 [Massimiliano Pala madwolf@openca.org]
4311 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4312 (up to about 10% better than before for P-192 and P-224).
4315 *) New functions/macros
4317 SSL_CTX_set_msg_callback(ctx, cb)
4318 SSL_CTX_set_msg_callback_arg(ctx, arg)
4319 SSL_set_msg_callback(ssl, cb)
4320 SSL_set_msg_callback_arg(ssl, arg)
4322 to request calling a callback function
4324 void cb(int write_p, int version, int content_type,
4325 const void *buf, size_t len, SSL *ssl, void *arg)
4327 whenever a protocol message has been completely received
4328 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4329 protocol version according to which the SSL library interprets
4330 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4331 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4332 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4333 specification (change_cipher_spec(20), alert(21), handshake(22)).
4334 'buf' and 'len' point to the actual message, 'ssl' to the
4335 SSL object, and 'arg' is the application-defined value set by
4336 SSL[_CTX]_set_msg_callback_arg().
4338 'openssl s_client' and 'openssl s_server' have new '-msg' options
4339 to enable a callback that displays all protocol messages.
4342 *) Change the shared library support so shared libraries are built as
4343 soon as the corresponding static library is finished, and thereby get
4344 openssl and the test programs linked against the shared library.
4345 This still only happens when the keyword "shard" has been given to
4346 the configuration scripts.
4348 NOTE: shared library support is still an experimental thing, and
4349 backward binary compatibility is still not guaranteed.
4350 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4352 *) Add support for Subject Information Access extension.
4353 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4355 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4356 additional bytes when new memory had to be allocated, not just
4357 when reusing an existing buffer.
4360 *) New command line and configuration option 'utf8' for the req command.
4361 This allows field values to be specified as UTF8 strings.
4364 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4365 runs for the former and machine-readable output for the latter.
4368 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4369 of the e-mail address in the DN (i.e., it will go into a certificate
4370 extension only). The new configuration file option 'email_in_dn = no'
4371 has the same effect.
4372 [Massimiliano Pala madwolf@openca.org]
4374 *) Change all functions with names starting with des_ to be starting
4375 with DES_ instead. Add wrappers that are compatible with libdes,
4376 but are named _ossl_old_des_*. Finally, add macros that map the
4377 des_* symbols to the corresponding _ossl_old_des_* if libdes
4378 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4379 desired, the des_* symbols will be mapped to DES_*, with one
4382 Since we provide two compatibility mappings, the user needs to
4383 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4384 compatibility is desired. The default (i.e., when that macro
4385 isn't defined) is OpenSSL 0.9.6c compatibility.
4387 There are also macros that enable and disable the support of old
4388 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4389 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4390 are defined, the default will apply: to support the old des routines.
4392 In either case, one must include openssl/des.h to get the correct
4393 definitions. Do not try to just include openssl/des_old.h, that
4396 NOTE: This is a major break of an old API into a new one. Software
4397 authors are encouraged to switch to the DES_ style functions. Some
4398 time in the future, des_old.h and the libdes compatibility functions
4399 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4400 default), and then completely removed.
4403 *) Test for certificates which contain unsupported critical extensions.
4404 If such a certificate is found during a verify operation it is
4405 rejected by default: this behaviour can be overridden by either
4406 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4407 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4408 X509_supported_extension() has also been added which returns 1 if a
4409 particular extension is supported.
4412 *) Modify the behaviour of EVP cipher functions in similar way to digests
4413 to retain compatibility with existing code.
4416 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4417 compatibility with existing code. In particular the 'ctx' parameter does
4418 not have to be to be initialized before the call to EVP_DigestInit() and
4419 it is tidied up after a call to EVP_DigestFinal(). New function
4420 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4421 EVP_MD_CTX_copy() changed to not require the destination to be
4422 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4423 requires the destination to be valid.
4425 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4426 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4429 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4430 so that complete 'Handshake' protocol structures are kept in memory
4431 instead of overwriting 'msg_type' and 'length' with 'body' data.
4434 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4435 [Massimo Santin via Richard Levitte]
4437 *) Major restructuring to the underlying ENGINE code. This includes
4438 reduction of linker bloat, separation of pure "ENGINE" manipulation
4439 (initialisation, etc) from functionality dealing with implementations
4440 of specific crypto iterfaces. This change also introduces integrated
4441 support for symmetric ciphers and digest implementations - so ENGINEs
4442 can now accelerate these by providing EVP_CIPHER and EVP_MD
4443 implementations of their own. This is detailed in crypto/engine/README
4444 as it couldn't be adequately described here. However, there are a few
4445 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4446 were changed in the original introduction of ENGINE code have now
4447 reverted back - the hooking from this code to ENGINE is now a good
4448 deal more passive and at run-time, operations deal directly with
4449 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4450 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4451 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4452 they were not being used by the framework as there is no concept of a
4453 BIGNUM_METHOD and they could not be generalised to the new
4454 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4455 ENGINE_cpy() has been removed as it cannot be consistently defined in
4459 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4462 *) Change mkdef.pl to sort symbols that get the same entry number,
4463 and make sure the automatically generated functions ERR_load_*
4464 become part of libeay.num as well.
4467 *) New function SSL_renegotiate_pending(). This returns true once
4468 renegotiation has been requested (either SSL_renegotiate() call
4469 or HelloRequest/ClientHello receveived from the peer) and becomes
4470 false once a handshake has been completed.
4471 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4472 sends a HelloRequest, but does not ensure that a handshake takes
4473 place. SSL_renegotiate_pending() is useful for checking if the
4474 client has followed the request.)
4477 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4478 By default, clients may request session resumption even during
4479 renegotiation (if session ID contexts permit); with this option,
4480 session resumption is possible only in the first handshake.
4482 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4483 more bits available for options that should not be part of
4484 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4487 *) Add some demos for certificate and certificate request creation.
4490 *) Make maximum certificate chain size accepted from the peer application
4491 settable (SSL*_get/set_max_cert_list()), as proposed by
4492 "Douglas E. Engert" <deengert@anl.gov>.
4495 *) Add support for shared libraries for Unixware-7
4496 (Boyd Lynn Gerber <gerberb@zenez.com>).
4499 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4500 be done prior to destruction. Use this to unload error strings from
4501 ENGINEs that load their own error strings. NB: This adds two new API
4502 functions to "get" and "set" this destroy handler in an ENGINE.
4505 *) Alter all existing ENGINE implementations (except "openssl" and
4506 "openbsd") to dynamically instantiate their own error strings. This
4507 makes them more flexible to be built both as statically-linked ENGINEs
4508 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4509 Also, add stub code to each that makes building them as self-contained
4510 shared-libraries easier (see README.ENGINE).
4513 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4514 implementations into applications that are completely implemented in
4515 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4516 commands that can be used to configure what shared-library to load and
4517 to control aspects of the way it is handled. Also, made an update to
4518 the README.ENGINE file that brings its information up-to-date and
4519 provides some information and instructions on the "dynamic" ENGINE
4520 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4523 *) Make it possible to unload ranges of ERR strings with a new
4524 "ERR_unload_strings" function.
4527 *) Add a copy() function to EVP_MD.
4530 *) Make EVP_MD routines take a context pointer instead of just the
4531 md_data void pointer.
4534 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4535 that the digest can only process a single chunk of data
4536 (typically because it is provided by a piece of
4537 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4538 is only going to provide a single chunk of data, and hence the
4539 framework needn't accumulate the data for oneshot drivers.
4542 *) As with "ERR", make it possible to replace the underlying "ex_data"
4543 functions. This change also alters the storage and management of global
4544 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4545 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4546 index counters. The API functions that use this state have been changed
4547 to take a "class_index" rather than pointers to the class's local STACK
4548 and counter, and there is now an API function to dynamically create new
4549 classes. This centralisation allows us to (a) plug a lot of the
4550 thread-safety problems that existed, and (b) makes it possible to clean
4551 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4552 such data would previously have always leaked in application code and
4553 workarounds were in place to make the memory debugging turn a blind eye
4554 to it. Application code that doesn't use this new function will still
4555 leak as before, but their memory debugging output will announce it now
4556 rather than letting it slide.
4558 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4559 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4560 has a return value to indicate success or failure.
4563 *) Make it possible to replace the underlying "ERR" functions such that the
4564 global state (2 LHASH tables and 2 locks) is only used by the "default"
4565 implementation. This change also adds two functions to "get" and "set"
4566 the implementation prior to it being automatically set the first time
4567 any other ERR function takes place. Ie. an application can call "get",
4568 pass the return value to a module it has just loaded, and that module
4569 can call its own "set" function using that value. This means the
4570 module's "ERR" operations will use (and modify) the error state in the
4571 application and not in its own statically linked copy of OpenSSL code.
4574 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4575 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4576 the operation, and provides a more encapsulated way for external code
4577 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4578 to use these functions rather than manually incrementing the counts.
4580 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4583 *) Add EVP test program.
4586 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4589 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4590 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4591 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4592 These allow a CRL to be built without having to access X509_CRL fields
4593 directly. Modify 'ca' application to use new functions.
4596 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4597 bug workarounds. Rollback attack detection is a security feature.
4598 The problem will only arise on OpenSSL servers when TLSv1 is not
4599 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4600 Software authors not wanting to support TLSv1 will have special reasons
4601 for their choice and can explicitly enable this option.
4602 [Bodo Moeller, Lutz Jaenicke]
4604 *) Rationalise EVP so it can be extended: don't include a union of
4605 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4606 (similar to those existing for EVP_CIPHER_CTX).
4611 EVP_MD_CTX_init(&md); /* new function call */
4612 EVP_DigestInit(&md, EVP_sha1());
4613 EVP_DigestUpdate(&md, in, len);
4614 EVP_DigestFinal(&md, out, NULL);
4615 EVP_MD_CTX_cleanup(&md); /* new function call */
4619 *) Make DES key schedule conform to the usual scheme, as well as
4620 correcting its structure. This means that calls to DES functions
4621 now have to pass a pointer to a des_key_schedule instead of a
4622 plain des_key_schedule (which was actually always a pointer
4625 des_key_schedule ks;
4627 des_set_key_checked(..., &ks);
4628 des_ncbc_encrypt(..., &ks, ...);
4630 (Note that a later change renames 'des_...' into 'DES_...'.)
4633 *) Initial reduction of linker bloat: the use of some functions, such as
4634 PEM causes large amounts of unused functions to be linked in due to
4635 poor organisation. For example pem_all.c contains every PEM function
4636 which has a knock on effect of linking in large amounts of (unused)
4637 ASN1 code. Grouping together similar functions and splitting unrelated
4638 functions prevents this.
4641 *) Cleanup of EVP macros.
4644 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4645 correct _ecb suffix.
4648 *) Add initial OCSP responder support to ocsp application. The
4649 revocation information is handled using the text based index
4650 use by the ca application. The responder can either handle
4651 requests generated internally, supplied in files (for example
4652 via a CGI script) or using an internal minimal server.
4655 *) Add configuration choices to get zlib compression for TLS.
4658 *) Changes to Kerberos SSL for RFC 2712 compliance:
4659 1. Implemented real KerberosWrapper, instead of just using
4660 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4661 2. Implemented optional authenticator field of KerberosWrapper.
4663 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4664 and authenticator structs; see crypto/krb5/.
4666 Generalized Kerberos calls to support multiple Kerberos libraries.
4667 [Vern Staats <staatsvr@asc.hpc.mil>,
4668 Jeffrey Altman <jaltman@columbia.edu>
4669 via Richard Levitte]
4671 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4672 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4673 values for each of the key sizes rather than having just
4674 parameters (and 'speed' generating keys each time).
4677 *) Speed up EVP routines.
4680 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4681 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4682 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4683 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4685 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4686 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4687 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4690 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4692 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4695 *) Added the OS2-EMX target.
4696 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4698 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4699 to support NCONF routines in extension code. New function CONF_set_nconf()
4700 to allow functions which take an NCONF to also handle the old LHASH
4701 structure: this means that the old CONF compatible routines can be
4702 retained (in particular wrt extensions) without having to duplicate the
4703 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4706 *) Enhance the general user interface with mechanisms for inner control
4707 and with possibilities to have yes/no kind of prompts.
4710 *) Change all calls to low level digest routines in the library and
4711 applications to use EVP. Add missing calls to HMAC_cleanup() and
4712 don't assume HMAC_CTX can be copied using memcpy().
4713 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4715 *) Add the possibility to control engines through control names but with
4716 arbitrary arguments instead of just a string.
4717 Change the key loaders to take a UI_METHOD instead of a callback
4718 function pointer. NOTE: this breaks binary compatibility with earlier
4719 versions of OpenSSL [engine].
4720 Adapt the nCipher code for these new conditions and add a card insertion
4724 *) Enhance the general user interface with mechanisms to better support
4725 dialog box interfaces, application-defined prompts, the possibility
4726 to use defaults (for example default passwords from somewhere else)
4727 and interrupts/cancellations.
4730 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4731 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4734 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4735 tidy up some unnecessarily weird code in 'sk_new()').
4736 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4738 *) Change the key loading routines for ENGINEs to use the same kind
4739 callback (pem_password_cb) as all other routines that need this
4743 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4744 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4745 than this minimum value is recommended.
4748 *) New random seeder for OpenVMS, using the system process statistics
4749 that are easily reachable.
4752 *) Windows apparently can't transparently handle global
4753 variables defined in DLLs. Initialisations such as:
4755 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4757 wont compile. This is used by the any applications that need to
4758 declare their own ASN1 modules. This was fixed by adding the option
4759 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4760 needed for static libraries under Win32.
4763 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4764 setting of purpose and trust fields. New X509_STORE trust and
4765 purpose functions and tidy up setting in other SSL functions.
4768 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4769 structure. These are inherited by X509_STORE_CTX when it is
4770 initialised. This allows various defaults to be set in the
4771 X509_STORE structure (such as flags for CRL checking and custom
4772 purpose or trust settings) for functions which only use X509_STORE_CTX
4773 internally such as S/MIME.
4775 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4776 trust settings if they are not set in X509_STORE. This allows X509_STORE
4777 purposes and trust (in S/MIME for example) to override any set by default.
4779 Add command line options for CRL checking to smime, s_client and s_server
4783 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4784 are set then the CRL is looked up in the X509_STORE structure and
4785 its validity and signature checked, then if the certificate is found
4786 in the CRL the verify fails with a revoked error.
4788 Various new CRL related callbacks added to X509_STORE_CTX structure.
4790 Command line options added to 'verify' application to support this.
4792 This needs some additional work, such as being able to handle multiple
4793 CRLs with different times, extension based lookup (rather than just
4794 by subject name) and ultimately more complete V2 CRL extension
4798 *) Add a general user interface API (crypto/ui/). This is designed
4799 to replace things like des_read_password and friends (backward
4800 compatibility functions using this new API are provided).
4801 The purpose is to remove prompting functions from the DES code
4802 section as well as provide for prompting through dialog boxes in
4803 a window system and the like.
4806 *) Add "ex_data" support to ENGINE so implementations can add state at a
4807 per-structure level rather than having to store it globally.
4810 *) Make it possible for ENGINE structures to be copied when retrieved by
4811 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4812 This causes the "original" ENGINE structure to act like a template,
4813 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4814 operational state can be localised to each ENGINE structure, despite the
4815 fact they all share the same "methods". New ENGINE structures returned in
4816 this case have no functional references and the return value is the single
4817 structural reference. This matches the single structural reference returned
4818 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4822 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4823 needs to match any other type at all we need to manually clear the
4827 *) Changes to the "openssl engine" utility to include;
4828 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4829 about an ENGINE's available control commands.
4830 - executing control commands from command line arguments using the
4831 '-pre' and '-post' switches. '-post' is only used if '-t' is
4832 specified and the ENGINE is successfully initialised. The syntax for
4833 the individual commands are colon-separated, for example;
4834 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4837 *) New dynamic control command support for ENGINEs. ENGINEs can now
4838 declare their own commands (numbers), names (strings), descriptions,
4839 and input types for run-time discovery by calling applications. A
4840 subset of these commands are implicitly classed as "executable"
4841 depending on their input type, and only these can be invoked through
4842 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4843 can be based on user input, config files, etc). The distinction is
4844 that "executable" commands cannot return anything other than a boolean
4845 result and can only support numeric or string input, whereas some
4846 discoverable commands may only be for direct use through
4847 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4848 pointers, or other custom uses. The "executable" commands are to
4849 support parameterisations of ENGINE behaviour that can be
4850 unambiguously defined by ENGINEs and used consistently across any
4851 OpenSSL-based application. Commands have been added to all the
4852 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4853 control over shared-library paths without source code alterations.
4856 *) Changed all ENGINE implementations to dynamically allocate their
4857 ENGINEs rather than declaring them statically. Apart from this being
4858 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4859 this also allows the implementations to compile without using the
4860 internal engine_int.h header.
4863 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4864 'const' value. Any code that should be able to modify a RAND_METHOD
4865 should already have non-const pointers to it (ie. they should only
4866 modify their own ones).
4869 *) Made a variety of little tweaks to the ENGINE code.
4870 - "atalla" and "ubsec" string definitions were moved from header files
4871 to C code. "nuron" string definitions were placed in variables
4872 rather than hard-coded - allowing parameterisation of these values
4873 later on via ctrl() commands.
4874 - Removed unused "#if 0"'d code.
4875 - Fixed engine list iteration code so it uses ENGINE_free() to release
4876 structural references.
4877 - Constified the RAND_METHOD element of ENGINE structures.
4878 - Constified various get/set functions as appropriate and added
4879 missing functions (including a catch-all ENGINE_cpy that duplicates
4880 all ENGINE values onto a new ENGINE except reference counts/state).
4881 - Removed NULL parameter checks in get/set functions. Setting a method
4882 or function to NULL is a way of cancelling out a previously set
4883 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4884 and doesn't justify the extra error symbols and code.
4885 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4886 flags from engine_int.h to engine.h.
4887 - Changed prototypes for ENGINE handler functions (init(), finish(),
4888 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4891 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4892 to the algorithm using long division. The binary algorithm can be
4893 used only if the modulus is odd. On 32-bit systems, it is faster
4894 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4895 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4896 up to 450 bits. In 64-bit environments, the binary algorithm
4897 appears to be advantageous for much longer moduli; here we use it
4898 for moduli up to 2048 bits.
4901 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4902 could not support the combine flag in choice fields.
4905 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4906 extensions from a certificate request to the certificate.
4909 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4910 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4911 file: this allows the display of the certificate about to be
4912 signed to be customised, to allow certain fields to be included
4913 or excluded and extension details. The old system didn't display
4914 multicharacter strings properly, omitted fields not in the policy
4915 and couldn't display additional details such as extensions.
4918 *) Function EC_POINTs_mul for multiple scalar multiplication
4919 of an arbitrary number of elliptic curve points
4920 \sum scalars[i]*points[i],
4921 optionally including the generator defined for the EC_GROUP:
4922 scalar*generator + \sum scalars[i]*points[i].
4924 EC_POINT_mul is a simple wrapper function for the typical case
4925 that the point list has just one item (besides the optional
4929 *) First EC_METHODs for curves over GF(p):
4931 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4932 operations and provides various method functions that can also
4933 operate with faster implementations of modular arithmetic.
4935 EC_GFp_mont_method() reuses most functions that are part of
4936 EC_GFp_simple_method, but uses Montgomery arithmetic.
4938 [Bodo Moeller; point addition and point doubling
4939 implementation directly derived from source code provided by
4940 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4942 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4943 crypto/ec/ec_lib.c):
4945 Curves are EC_GROUP objects (with an optional group generator)
4946 based on EC_METHODs that are built into the library.
4948 Points are EC_POINT objects based on EC_GROUP objects.
4950 Most of the framework would be able to handle curves over arbitrary
4951 finite fields, but as there are no obvious types for fields other
4952 than GF(p), some functions are limited to that for now.
4955 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4956 that the file contains a complete HTTP response.
4959 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4960 change the def and num file printf format specifier from "%-40sXXX"
4961 to "%-39s XXX". The latter will always guarantee a space after the
4962 field while the former will cause them to run together if the field
4963 is 40 of more characters long.
4966 *) Constify the cipher and digest 'method' functions and structures
4967 and modify related functions to take constant EVP_MD and EVP_CIPHER
4971 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4972 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4975 *) Modify EVP_Digest*() routines so they now return values. Although the
4976 internal software routines can never fail additional hardware versions
4980 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4982 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4983 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4986 ERR_R_NESTED_ASN1_ERROR
4988 ERR_R_MISSING_ASN1_EOS
4989 were 4 .. 9, conflicting with
4990 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4992 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4993 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4995 Add new error code 'ERR_R_INTERNAL_ERROR'.
4998 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
5002 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
5003 sets the subject name for a new request or supersedes the
5004 subject name in a given request. Formats that can be parsed are
5005 'CN=Some Name, OU=myOU, C=IT'
5007 'CN=Some Name/OU=myOU/C=IT'.
5009 Add options '-batch' and '-verbose' to 'openssl req'.
5010 [Massimiliano Pala <madwolf@hackmasters.net>]
5012 *) Introduce the possibility to access global variables through
5013 functions on platform were that's the best way to handle exporting
5014 global variables in shared libraries. To enable this functionality,
5015 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
5016 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
5017 is normally done by Configure or something similar).
5019 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
5020 in the source file (foo.c) like this:
5022 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
5023 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
5025 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
5026 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
5028 OPENSSL_DECLARE_GLOBAL(int,foo);
5029 #define foo OPENSSL_GLOBAL_REF(foo)
5030 OPENSSL_DECLARE_GLOBAL(double,bar);
5031 #define bar OPENSSL_GLOBAL_REF(bar)
5033 The #defines are very important, and therefore so is including the
5034 header file everywhere where the defined globals are used.
5036 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
5037 of ASN.1 items, but that structure is a bit different.
5039 The largest change is in util/mkdef.pl which has been enhanced with
5040 better and easier to understand logic to choose which symbols should
5041 go into the Windows .def files as well as a number of fixes and code
5042 cleanup (among others, algorithm keywords are now sorted
5043 lexicographically to avoid constant rewrites).
5046 *) In BN_div() keep a copy of the sign of 'num' before writing the
5047 result to 'rm' because if rm==num the value will be overwritten
5048 and produce the wrong result if 'num' is negative: this caused
5049 problems with BN_mod() and BN_nnmod().
5052 *) Function OCSP_request_verify(). This checks the signature on an
5053 OCSP request and verifies the signer certificate. The signer
5054 certificate is just checked for a generic purpose and OCSP request
5058 *) Add OCSP_check_validity() function to check the validity of OCSP
5059 responses. OCSP responses are prepared in real time and may only
5060 be a few seconds old. Simply checking that the current time lies
5061 between thisUpdate and nextUpdate max reject otherwise valid responses
5062 caused by either OCSP responder or client clock inaccuracy. Instead
5063 we allow thisUpdate and nextUpdate to fall within a certain period of
5064 the current time. The age of the response can also optionally be
5065 checked. Two new options -validity_period and -status_age added to
5069 *) If signature or public key algorithm is unrecognized print out its
5070 OID rather that just UNKNOWN.
5073 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5074 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5075 ID to be generated from the issuer certificate alone which can then be
5076 passed to OCSP_id_issuer_cmp().
5079 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5080 ASN1 modules to export functions returning ASN1_ITEM pointers
5081 instead of the ASN1_ITEM structures themselves. This adds several
5082 new macros which allow the underlying ASN1 function/structure to
5083 be accessed transparently. As a result code should not use ASN1_ITEM
5084 references directly (such as &X509_it) but instead use the relevant
5085 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5086 use of the new ASN1 code on platforms where exporting structures
5087 is problematical (for example in shared libraries) but exporting
5088 functions returning pointers to structures is not.
5091 *) Add support for overriding the generation of SSL/TLS session IDs.
5092 These callbacks can be registered either in an SSL_CTX or per SSL.
5093 The purpose of this is to allow applications to control, if they wish,
5094 the arbitrary values chosen for use as session IDs, particularly as it
5095 can be useful for session caching in multiple-server environments. A
5096 command-line switch for testing this (and any client code that wishes
5097 to use such a feature) has been added to "s_server".
5098 [Geoff Thorpe, Lutz Jaenicke]
5100 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5101 of the form '#if defined(...) || defined(...) || ...' and
5102 '#if !defined(...) && !defined(...) && ...'. This also avoids
5103 the growing number of special cases it was previously handling.
5106 *) Make all configuration macros available for application by making
5107 sure they are available in opensslconf.h, by giving them names starting
5108 with "OPENSSL_" to avoid conflicts with other packages and by making
5109 sure e_os2.h will cover all platform-specific cases together with
5111 Additionally, it is now possible to define configuration/platform-
5112 specific names (called "system identities"). In the C code, these
5113 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5114 macro with the name beginning with "OPENSSL_SYS_", which is determined
5115 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5119 *) New option -set_serial to 'req' and 'x509' this allows the serial
5120 number to use to be specified on the command line. Previously self
5121 signed certificates were hard coded with serial number 0 and the
5122 CA options of 'x509' had to use a serial number in a file which was
5126 *) New options to 'ca' utility to support V2 CRL entry extensions.
5127 Currently CRL reason, invalidity date and hold instruction are
5128 supported. Add new CRL extensions to V3 code and some new objects.
5131 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5132 disable standard block padding (aka PKCS#5 padding) in the EVP
5133 API, which was previously mandatory. This means that the data is
5134 not padded in any way and so the total length much be a multiple
5135 of the block size, otherwise an error occurs.
5138 *) Initial (incomplete) OCSP SSL support.
5141 *) New function OCSP_parse_url(). This splits up a URL into its host,
5142 port and path components: primarily to parse OCSP URLs. New -url
5143 option to ocsp utility.
5146 *) New nonce behavior. The return value of OCSP_check_nonce() now
5147 reflects the various checks performed. Applications can decide
5148 whether to tolerate certain situations such as an absent nonce
5149 in a response when one was present in a request: the ocsp application
5150 just prints out a warning. New function OCSP_add1_basic_nonce()
5151 this is to allow responders to include a nonce in a response even if
5152 the request is nonce-less.
5155 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5156 skipped when using openssl x509 multiple times on a single input file,
5157 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5160 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5161 set string type: to handle setting ASN1_TIME structures. Fix ca
5162 utility to correctly initialize revocation date of CRLs.
5165 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5166 the clients preferred ciphersuites and rather use its own preferences.
5167 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5168 Internet Explorer by ensuring unchanged hash method during stepup.
5169 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5172 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5173 to aes and add a new 'exist' option to print out symbols that don't
5177 *) Additional options to ocsp utility to allow flags to be set and
5178 additional certificates supplied.
5181 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5182 OCSP client a number of certificate to only verify the response
5186 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5187 handle the new API. Currently only ECB, CBC modes supported. Add new
5190 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5191 Encryption Standard (AES) Ciphersuites for Transport Layer
5192 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5193 not enabled by default and were not part of the "ALL" ciphersuite
5194 alias because they were not yet official; they could be
5195 explicitly requested by specifying the "AESdraft" ciphersuite
5196 group alias. In the final release of OpenSSL 0.9.7, the group
5197 alias is called "AES" and is part of "ALL".)
5198 [Ben Laurie, Steve Henson, Bodo Moeller]
5200 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5201 request to response.
5204 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5205 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5206 extract information from a certificate request. OCSP_response_create()
5207 creates a response and optionally adds a basic response structure.
5208 OCSP_basic_add1_status() adds a complete single response to a basic
5209 response and returns the OCSP_SINGLERESP structure just added (to allow
5210 extensions to be included for example). OCSP_basic_add1_cert() adds a
5211 certificate to a basic response and OCSP_basic_sign() signs a basic
5212 response with various flags. New helper functions ASN1_TIME_check()
5213 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5214 (converts ASN1_TIME to GeneralizedTime).
5217 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5218 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5219 structure from a certificate. X509_pubkey_digest() digests the public_key
5220 contents: this is used in various key identifiers.
5223 *) Make sk_sort() tolerate a NULL argument.
5224 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5226 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5227 passed by the function are trusted implicitly. If any of them signed the
5228 response then it is assumed to be valid and is not verified.
5231 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5232 to data. This was previously part of the PKCS7 ASN1 code. This
5233 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5234 [Steve Henson, reported by Kenneth R. Robinette
5235 <support@securenetterm.com>]
5237 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5238 routines: without these tracing memory leaks is very painful.
5239 Fix leaks in PKCS12 and PKCS7 routines.
5242 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5243 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5244 effectively meant GeneralizedTime would never be used. Now it
5245 is initialised to -1 but X509_time_adj() now has to check the value
5246 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5247 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5248 [Steve Henson, reported by Kenneth R. Robinette
5249 <support@securenetterm.com>]
5251 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5252 result in a zero length in the ASN1_INTEGER structure which was
5253 not consistent with the structure when d2i_ASN1_INTEGER() was used
5254 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5255 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5256 where it did not print out a minus for negative ASN1_INTEGER.
5259 *) Add summary printout to ocsp utility. The various functions which
5260 convert status values to strings have been renamed to:
5261 OCSP_response_status_str(), OCSP_cert_status_str() and
5262 OCSP_crl_reason_str() and are no longer static. New options
5263 to verify nonce values and to disable verification. OCSP response
5264 printout format cleaned up.
5267 *) Add additional OCSP certificate checks. These are those specified
5268 in RFC2560. This consists of two separate checks: the CA of the
5269 certificate being checked must either be the OCSP signer certificate
5270 or the issuer of the OCSP signer certificate. In the latter case the
5271 OCSP signer certificate must contain the OCSP signing extended key
5272 usage. This check is performed by attempting to match the OCSP
5273 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5274 in the OCSP_CERTID structures of the response.
5277 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5278 and related routines. This uses the standard OpenSSL certificate
5279 verify routines to perform initial checks (just CA validity) and
5280 to obtain the certificate chain. Then additional checks will be
5281 performed on the chain. Currently the root CA is checked to see
5282 if it is explicitly trusted for OCSP signing. This is used to set
5283 a root CA as a global signing root: that is any certificate that
5284 chains to that CA is an acceptable OCSP signing certificate.
5287 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5288 extensions from a separate configuration file.
5289 As when reading extensions from the main configuration file,
5290 the '-extensions ...' option may be used for specifying the
5292 [Massimiliano Pala <madwolf@comune.modena.it>]
5294 *) New OCSP utility. Allows OCSP requests to be generated or
5295 read. The request can be sent to a responder and the output
5296 parsed, outputed or printed in text form. Not complete yet:
5297 still needs to check the OCSP response validity.
5300 *) New subcommands for 'openssl ca':
5301 'openssl ca -status <serial>' prints the status of the cert with
5302 the given serial number (according to the index file).
5303 'openssl ca -updatedb' updates the expiry status of certificates
5305 [Massimiliano Pala <madwolf@comune.modena.it>]
5307 *) New '-newreq-nodes' command option to CA.pl. This is like
5308 '-newreq', but calls 'openssl req' with the '-nodes' option
5309 so that the resulting key is not encrypted.
5310 [Damien Miller <djm@mindrot.org>]
5312 *) New configuration for the GNU Hurd.
5313 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5315 *) Initial code to implement OCSP basic response verify. This
5316 is currently incomplete. Currently just finds the signer's
5317 certificate and verifies the signature on the response.
5320 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5321 value of OPENSSLDIR. This is available via the new '-d' option
5322 to 'openssl version', and is also included in 'openssl version -a'.
5325 *) Allowing defining memory allocation callbacks that will be given
5326 file name and line number information in additional arguments
5327 (a const char* and an int). The basic functionality remains, as
5328 well as the original possibility to just replace malloc(),
5329 realloc() and free() by functions that do not know about these
5330 additional arguments. To register and find out the current
5331 settings for extended allocation functions, the following
5332 functions are provided:
5334 CRYPTO_set_mem_ex_functions
5335 CRYPTO_set_locked_mem_ex_functions
5336 CRYPTO_get_mem_ex_functions
5337 CRYPTO_get_locked_mem_ex_functions
5339 These work the same way as CRYPTO_set_mem_functions and friends.
5340 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5341 extended allocation function is enabled.
5342 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5343 a conventional allocation function is enabled.
5344 [Richard Levitte, Bodo Moeller]
5346 *) Finish off removing the remaining LHASH function pointer casts.
5347 There should no longer be any prototype-casting required when using
5348 the LHASH abstraction, and any casts that remain are "bugs". See
5349 the callback types and macros at the head of lhash.h for details
5350 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5353 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5354 If /dev/[u]random devices are not available or do not return enough
5355 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5357 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5358 /etc/entropy will be queried once each in this sequence, quering stops
5359 when enough entropy was collected without querying more sockets.
5362 *) Change the Unix RAND_poll() variant to be able to poll several
5363 random devices, as specified by DEVRANDOM, until a sufficient amount
5364 of data has been collected. We spend at most 10 ms on each file
5365 (select timeout) and read in non-blocking mode. DEVRANDOM now
5366 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5367 (previously it was just the string "/dev/urandom"), so on typical
5368 platforms the 10 ms delay will never occur.
5369 Also separate out the Unix variant to its own file, rand_unix.c.
5370 For VMS, there's a currently-empty rand_vms.c.
5373 *) Move OCSP client related routines to ocsp_cl.c. These
5374 provide utility functions which an application needing
5375 to issue a request to an OCSP responder and analyse the
5376 response will typically need: as opposed to those which an
5377 OCSP responder itself would need which will be added later.
5379 OCSP_request_sign() signs an OCSP request with an API similar
5380 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5381 response. OCSP_response_get1_basic() extracts basic response
5382 from response. OCSP_resp_find_status(): finds and extracts status
5383 information from an OCSP_CERTID structure (which will be created
5384 when the request structure is built). These are built from lower
5385 level functions which work on OCSP_SINGLERESP structures but
5386 wont normally be used unless the application wishes to examine
5387 extensions in the OCSP response for example.
5389 Replace nonce routines with a pair of functions.
5390 OCSP_request_add1_nonce() adds a nonce value and optionally
5391 generates a random value. OCSP_check_nonce() checks the
5392 validity of the nonce in an OCSP response.
5395 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5396 This doesn't copy the supplied OCSP_CERTID and avoids the
5397 need to free up the newly created id. Change return type
5398 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5399 This can then be used to add extensions to the request.
5400 Deleted OCSP_request_new(), since most of its functionality
5401 is now in OCSP_REQUEST_new() (and the case insensitive name
5402 clash) apart from the ability to set the request name which
5403 will be added elsewhere.
5406 *) Update OCSP API. Remove obsolete extensions argument from
5407 various functions. Extensions are now handled using the new
5408 OCSP extension code. New simple OCSP HTTP function which
5409 can be used to send requests and parse the response.
5412 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5413 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5414 uses the special reorder version of SET OF to sort the attributes
5415 and reorder them to match the encoded order. This resolves a long
5416 standing problem: a verify on a PKCS7 structure just after signing
5417 it used to fail because the attribute order did not match the
5418 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5419 it uses the received order. This is necessary to tolerate some broken
5420 software that does not order SET OF. This is handled by encoding
5421 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5422 to produce the required SET OF.
5425 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5426 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5427 files to get correct declarations of the ASN.1 item variables.
5430 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5431 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5432 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5433 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5434 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5435 ASN1_ITEM and no wrapper functions.
5438 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5439 replace the old function pointer based I/O routines. Change most of
5440 the *_d2i_bio() and *_d2i_fp() functions to use these.
5443 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5444 lines, recognice more "algorithms" that can be deselected, and make
5445 it complain about algorithm deselection that isn't recognised.
5448 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5449 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5450 to use new functions. Add NO_ASN1_OLD which can be set to remove
5451 some old style ASN1 functions: this can be used to determine if old
5452 code will still work when these eventually go away.
5455 *) New extension functions for OCSP structures, these follow the
5456 same conventions as certificates and CRLs.
5459 *) New function X509V3_add1_i2d(). This automatically encodes and
5460 adds an extension. Its behaviour can be customised with various
5461 flags to append, replace or delete. Various wrappers added for
5462 certifcates and CRLs.
5465 *) Fix to avoid calling the underlying ASN1 print routine when
5466 an extension cannot be parsed. Correct a typo in the
5467 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5470 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5471 entries for variables.
5474 *) Add functionality to apps/openssl.c for detecting locking
5475 problems: As the program is single-threaded, all we have
5476 to do is register a locking callback using an array for
5477 storing which locks are currently held by the program.
5480 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5481 SSL_get_ex_data_X509_STORE_idx(), which is used in
5482 ssl_verify_cert_chain() and thus can be called at any time
5483 during TLS/SSL handshakes so that thread-safety is essential.
5484 Unfortunately, the ex_data design is not at all suited
5485 for multi-threaded use, so it probably should be abolished.
5488 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5489 [Broadcom, tweaked and integrated by Geoff Thorpe]
5491 *) Move common extension printing code to new function
5492 X509V3_print_extensions(). Reorganise OCSP print routines and
5493 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5496 *) New function X509_signature_print() to remove duplication in some
5500 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5501 set (this was treated exactly the same as SET OF previously). This
5502 is used to reorder the STACK representing the structure to match the
5503 encoding. This will be used to get round a problem where a PKCS7
5504 structure which was signed could not be verified because the STACK
5505 order did not reflect the encoded order.
5508 *) Reimplement the OCSP ASN1 module using the new code.
5511 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5512 for its ASN1 operations. The old style function pointers still exist
5513 for now but they will eventually go away.
5516 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5517 completely replaces the old ASN1 functionality with a table driven
5518 encoder and decoder which interprets an ASN1_ITEM structure describing
5519 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5520 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5521 has also been converted to the new form.
5524 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5525 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5526 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5527 for negative moduli.
5530 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5531 of not touching the result's sign bit.
5534 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5538 *) Changed the LHASH code to use prototypes for callbacks, and created
5539 macros to declare and implement thin (optionally static) functions
5540 that provide type-safety and avoid function pointer casting for the
5541 type-specific callbacks.
5544 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5546 [Veers Staats <staatsvr@asc.hpc.mil>,
5547 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5549 *) Reformat the FAQ so the different questions and answers can be divided
5550 in sections depending on the subject.
5553 *) Have the zlib compression code load ZLIB.DLL dynamically under
5557 *) New function BN_mod_sqrt for computing square roots modulo a prime
5558 (using the probabilistic Tonelli-Shanks algorithm unless
5559 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5560 be handled deterministically).
5561 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5563 *) Make BN_mod_inverse faster by explicitly handling small quotients
5564 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5565 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5568 *) New function BN_kronecker.
5571 *) Fix BN_gcd so that it works on negative inputs; the result is
5572 positive unless both parameters are zero.
5573 Previously something reasonably close to an infinite loop was
5574 possible because numbers could be growing instead of shrinking
5575 in the implementation of Euclid's algorithm.
5578 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5579 sign of the number in question.
5581 Fix BN_is_word(a,w) to work correctly for w == 0.
5583 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5584 because its test if the absolute value of 'a' equals 'w'.
5585 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5586 it exists mostly for use in the implementations of BN_is_zero(),
5587 BN_is_one(), and BN_is_word().
5590 *) New function BN_swap.
5593 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5594 the exponentiation functions are more likely to produce reasonable
5595 results on negative inputs.
5598 *) Change BN_mod_mul so that the result is always non-negative.
5599 Previously, it could be negative if one of the factors was negative;
5600 I don't think anyone really wanted that behaviour.
5603 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5604 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5605 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5606 and add new functions:
5615 BN_mod_lshift1_quick
5619 These functions always generate non-negative results.
5621 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5622 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5624 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5625 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5626 be reduced modulo m.
5627 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5630 The following entry accidentily appeared in the CHANGES file
5631 distributed with OpenSSL 0.9.7. The modifications described in
5632 it do *not* apply to OpenSSL 0.9.7.
5634 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5635 was actually never needed) and in BN_mul(). The removal in BN_mul()
5636 required a small change in bn_mul_part_recursive() and the addition
5637 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5638 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5639 bn_sub_words() and bn_add_words() except they take arrays with
5644 *) In 'openssl passwd', verify passwords read from the terminal
5645 unless the '-salt' option is used (which usually means that
5646 verification would just waste user's time since the resulting
5647 hash is going to be compared with some given password hash)
5648 or the new '-noverify' option is used.
5650 This is an incompatible change, but it does not affect
5651 non-interactive use of 'openssl passwd' (passwords on the command
5652 line, '-stdin' option, '-in ...' option) and thus should not
5656 *) Remove all references to RSAref, since there's no more need for it.
5659 *) Make DSO load along a path given through an environment variable
5660 (SHLIB_PATH) with shl_load().
5663 *) Constify the ENGINE code as a result of BIGNUM constification.
5664 Also constify the RSA code and most things related to it. In a
5665 few places, most notable in the depth of the ASN.1 code, ugly
5666 casts back to non-const were required (to be solved at a later
5670 *) Make it so the openssl application has all engines loaded by default.
5673 *) Constify the BIGNUM routines a little more.
5676 *) Add the following functions:
5678 ENGINE_load_cswift()
5680 ENGINE_load_atalla()
5682 ENGINE_load_builtin_engines()
5684 That way, an application can itself choose if external engines that
5685 are built-in in OpenSSL shall ever be used or not. The benefit is
5686 that applications won't have to be linked with libdl or other dso
5687 libraries unless it's really needed.
5689 Changed 'openssl engine' to load all engines on demand.
5690 Changed the engine header files to avoid the duplication of some
5691 declarations (they differed!).
5694 *) 'openssl engine' can now list capabilities.
5697 *) Better error reporting in 'openssl engine'.
5700 *) Never call load_dh_param(NULL) in s_server.
5703 *) Add engine application. It can currently list engines by name and
5704 identity, and test if they are actually available.
5707 *) Improve RPM specification file by forcing symbolic linking and making
5708 sure the installed documentation is also owned by root.root.
5709 [Damien Miller <djm@mindrot.org>]
5711 *) Give the OpenSSL applications more possibilities to make use of
5712 keys (public as well as private) handled by engines.
5715 *) Add OCSP code that comes from CertCo.
5718 *) Add VMS support for the Rijndael code.
5721 *) Added untested support for Nuron crypto accelerator.
5724 *) Add support for external cryptographic devices. This code was
5725 previously distributed separately as the "engine" branch.
5726 [Geoff Thorpe, Richard Levitte]
5728 *) Rework the filename-translation in the DSO code. It is now possible to
5729 have far greater control over how a "name" is turned into a filename
5730 depending on the operating environment and any oddities about the
5731 different shared library filenames on each system.
5734 *) Support threads on FreeBSD-elf in Configure.
5737 *) Fix for SHA1 assembly problem with MASM: it produces
5738 warnings about corrupt line number information when assembling
5739 with debugging information. This is caused by the overlapping
5741 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5744 NCONF_get_number() has no error checking at all. As a replacement,
5745 NCONF_get_number_e() is defined (_e for "error checking") and is
5746 promoted strongly. The old NCONF_get_number is kept around for
5747 binary backward compatibility.
5748 Make it possible for methods to load from something other than a BIO,
5749 by providing a function pointer that is given a name instead of a BIO.
5750 For example, this could be used to load configuration data from an
5754 *) Fix for non blocking accept BIOs. Added new I/O special reason
5755 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5756 with non blocking I/O was not possible because no retry code was
5757 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5761 *) Added the beginnings of Rijndael support.
5764 *) Fix for bug in DirectoryString mask setting. Add support for
5765 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5766 to allow certificate printing to more controllable, additional
5767 'certopt' option to 'x509' to allow new printing options to be
5771 *) Clean old EAY MD5 hack from e_os.h.
5774 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5776 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5777 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5778 [Joe Orton, Steve Henson]
5780 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5782 *) Fix additional bug revealed by the NISCC test suite:
5784 Stop bug triggering large recursion when presented with
5785 certain ASN.1 tags (CVE-2003-0851)
5788 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5790 *) Fix various bugs revealed by running the NISCC test suite:
5792 Stop out of bounds reads in the ASN1 code when presented with
5793 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5795 If verify callback ignores invalid public key errors don't try to check
5796 certificate signature with the NULL public key.
5800 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5801 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5805 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5806 extra data after the compression methods not only for TLS 1.0
5807 but also for SSL 3.0 (as required by the specification).
5808 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5810 *) Change X509_certificate_type() to mark the key as exported/exportable
5811 when it's 512 *bits* long, not 512 bytes.
5814 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5816 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5817 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5818 a protocol version number mismatch like a decryption error
5819 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5822 *) Turn on RSA blinding by default in the default implementation
5823 to avoid a timing attack. Applications that don't want it can call
5824 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5825 They would be ill-advised to do so in most cases.
5826 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5828 *) Change RSA blinding code so that it works when the PRNG is not
5829 seeded (in this case, the secret RSA exponent is abused as
5830 an unpredictable seed -- if it is not unpredictable, there
5831 is no point in blinding anyway). Make RSA blinding thread-safe
5832 by remembering the creator's thread ID in rsa->blinding and
5833 having all other threads use local one-time blinding factors
5834 (this requires more computation than sharing rsa->blinding, but
5835 avoids excessive locking; and if an RSA object is not shared
5836 between threads, blinding will still be very fast).
5839 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5841 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5842 via timing by performing a MAC computation even if incorrrect
5843 block cipher padding has been found. This is a countermeasure
5844 against active attacks where the attacker has to distinguish
5845 between bad padding and a MAC verification error. (CVE-2003-0078)
5847 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5848 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5849 Martin Vuagnoux (EPFL, Ilion)]
5851 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5853 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5854 memory from it's contents. This is done with a counter that will
5855 place alternating values in each byte. This can be used to solve
5856 two issues: 1) the removal of calls to memset() by highly optimizing
5857 compilers, and 2) cleansing with other values than 0, since those can
5858 be read through on certain media, for example a swap space on disk.
5861 *) Bugfix: client side session caching did not work with external caching,
5862 because the session->cipher setting was not restored when reloading
5863 from the external cache. This problem was masked, when
5864 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5865 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5868 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5869 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5870 [Zeev Lieber <zeev-l@yahoo.com>]
5872 *) Undo an undocumented change introduced in 0.9.6e which caused
5873 repeated calls to OpenSSL_add_all_ciphers() and
5874 OpenSSL_add_all_digests() to be ignored, even after calling
5878 *) Change the default configuration reader to deal with last line not
5879 being properly terminated.
5882 *) Change X509_NAME_cmp() so it applies the special rules on handling
5883 DN values that are of type PrintableString, as well as RDNs of type
5884 emailAddress where the value has the type ia5String.
5885 [stefank@valicert.com via Richard Levitte]
5887 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5888 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5889 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5890 the bitwise-OR of the two for use by the majority of applications
5891 wanting this behaviour, and update the docs. The documented
5892 behaviour and actual behaviour were inconsistent and had been
5893 changing anyway, so this is more a bug-fix than a behavioural
5895 [Geoff Thorpe, diagnosed by Nadav Har'El]
5897 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5898 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5901 *) Fix initialization code race conditions in
5902 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5903 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5904 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5905 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5906 ssl2_get_cipher_by_char(),
5907 ssl3_get_cipher_by_char().
5908 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5910 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5911 the cached sessions are flushed, as the remove_cb() might use ex_data
5912 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5913 (see [openssl.org #212]).
5914 [Geoff Thorpe, Lutz Jaenicke]
5916 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5917 length, instead of the encoding length to d2i_ASN1_OBJECT.
5920 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5922 *) [In 0.9.6g-engine release:]
5923 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5924 [Lynn Gazis <lgazis@rainbow.com>]
5926 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5928 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5929 and get fix the header length calculation.
5930 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5931 Alon Kantor <alonk@checkpoint.com> (and others),
5934 *) Use proper error handling instead of 'assertions' in buffer
5935 overflow checks added in 0.9.6e. This prevents DoS (the
5936 assertions could call abort()).
5937 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5939 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5941 *) Add various sanity checks to asn1_get_length() to reject
5942 the ASN1 length bytes if they exceed sizeof(long), will appear
5943 negative or the content length exceeds the length of the
5945 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5947 *) Fix cipher selection routines: ciphers without encryption had no flags
5948 for the cipher strength set and where therefore not handled correctly
5949 by the selection routines (PR #130).
5952 *) Fix EVP_dsa_sha macro.
5956 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5957 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5958 that was added in OpenSSL 0.9.6d.
5960 As the countermeasure turned out to be incompatible with some
5961 broken SSL implementations, the new option is part of SSL_OP_ALL.
5962 SSL_OP_ALL is usually employed when compatibility with weird SSL
5963 implementations is desired (e.g. '-bugs' option to 's_client' and
5964 's_server'), so the new option is automatically set in many
5968 *) Changes in security patch:
5970 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5971 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5972 Air Force Materiel Command, USAF, under agreement number
5975 *) Add various sanity checks to asn1_get_length() to reject
5976 the ASN1 length bytes if they exceed sizeof(long), will appear
5977 negative or the content length exceeds the length of the
5978 supplied buffer. (CVE-2002-0659)
5979 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5981 *) Assertions for various potential buffer overflows, not known to
5983 [Ben Laurie (CHATS)]
5985 *) Various temporary buffers to hold ASCII versions of integers were
5986 too small for 64 bit platforms. (CVE-2002-0655)
5987 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5989 *) Remote buffer overflow in SSL3 protocol - an attacker could
5990 supply an oversized session ID to a client. (CVE-2002-0656)
5991 [Ben Laurie (CHATS)]
5993 *) Remote buffer overflow in SSL2 protocol - an attacker could
5994 supply an oversized client master key. (CVE-2002-0656)
5995 [Ben Laurie (CHATS)]
5997 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5999 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
6000 encoded as NULL) with id-dsa-with-sha1.
6001 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
6003 *) Check various X509_...() return values in apps/req.c.
6004 [Nils Larsch <nla@trustcenter.de>]
6006 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
6007 an end-of-file condition would erronously be flagged, when the CRLF
6008 was just at the end of a processed block. The bug was discovered when
6009 processing data through a buffering memory BIO handing the data to a
6010 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
6011 <ptsekov@syntrex.com> and Nedelcho Stanev.
6014 *) Implement a countermeasure against a vulnerability recently found
6015 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
6016 before application data chunks to avoid the use of known IVs
6017 with data potentially chosen by the attacker.
6020 *) Fix length checks in ssl3_get_client_hello().
6023 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
6024 to prevent ssl3_read_internal() from incorrectly assuming that
6025 ssl3_read_bytes() found application data while handshake
6026 processing was enabled when in fact s->s3->in_read_app_data was
6027 merely automatically cleared during the initial handshake.
6028 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
6030 *) Fix object definitions for Private and Enterprise: they were not
6031 recognized in their shortname (=lowercase) representation. Extend
6032 obj_dat.pl to issue an error when using undefined keywords instead
6033 of silently ignoring the problem (Svenning Sorensen
6034 <sss@sss.dnsalias.net>).
6037 *) Fix DH_generate_parameters() so that it works for 'non-standard'
6038 generators, i.e. generators other than 2 and 5. (Previously, the
6039 code did not properly initialise the 'add' and 'rem' values to
6040 BN_generate_prime().)
6042 In the new general case, we do not insist that 'generator' is
6043 actually a primitive root: This requirement is rather pointless;
6044 a generator of the order-q subgroup is just as good, if not
6048 *) Map new X509 verification errors to alerts. Discovered and submitted by
6049 Tom Wu <tom@arcot.com>.
6052 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
6053 returning non-zero before the data has been completely received
6054 when using non-blocking I/O.
6055 [Bodo Moeller; problem pointed out by John Hughes]
6057 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
6058 [Ben Laurie, Lutz Jaenicke]
6060 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
6061 Yoram Zahavi <YoramZ@gilian.com>).
6064 *) Add information about CygWin 1.3 and on, and preserve proper
6065 configuration for the versions before that.
6066 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6068 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6069 check whether we deal with a copy of a session and do not delete from
6070 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6071 <izhar@checkpoint.com>.
6074 *) Do not store session data into the internal session cache, if it
6075 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6076 flag is set). Proposed by Aslam <aslam@funk.com>.
6079 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6083 *) [In 0.9.6d-engine release:]
6084 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6085 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6087 *) Add the configuration target linux-s390x.
6088 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6090 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6091 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6092 variable as an indication that a ClientHello message has been
6093 received. As the flag value will be lost between multiple
6094 invocations of ssl3_accept when using non-blocking I/O, the
6095 function may not be aware that a handshake has actually taken
6096 place, thus preventing a new session from being added to the
6099 To avoid this problem, we now set s->new_session to 2 instead of
6100 using a local variable.
6101 [Lutz Jaenicke, Bodo Moeller]
6103 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6104 if the SSL_R_LENGTH_MISMATCH error is detected.
6105 [Geoff Thorpe, Bodo Moeller]
6107 *) New 'shared_ldflag' column in Configure platform table.
6110 *) Fix EVP_CIPHER_mode macro.
6111 ["Dan S. Camper" <dan@bti.net>]
6113 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6114 type, we must throw them away by setting rr->length to 0.
6115 [D P Chang <dpc@qualys.com>]
6117 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6119 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6120 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6121 worked incorrectly for those cases where range = 10..._2 and
6122 3*range is two bits longer than range.)
6125 *) Only add signing time to PKCS7 structures if it is not already
6129 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6130 OBJ_ld_ce should be OBJ_id_ce.
6131 Also some ip-pda OIDs in crypto/objects/objects.txt were
6132 incorrect (cf. RFC 3039).
6133 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6135 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6136 returns early because it has nothing to do.
6137 [Andy Schneider <andy.schneider@bjss.co.uk>]
6139 *) [In 0.9.6c-engine release:]
6140 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6141 [Andy Schneider <andy.schneider@bjss.co.uk>]
6143 *) [In 0.9.6c-engine release:]
6144 Add support for Cryptographic Appliance's keyserver technology.
6145 (Use engine 'keyclient')
6146 [Cryptographic Appliances and Geoff Thorpe]
6148 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6149 is called via tools/c89.sh because arguments have to be
6150 rearranged (all '-L' options must appear before the first object
6152 [Richard Shapiro <rshapiro@abinitio.com>]
6154 *) [In 0.9.6c-engine release:]
6155 Add support for Broadcom crypto accelerator cards, backported
6157 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6159 *) [In 0.9.6c-engine release:]
6160 Add support for SureWare crypto accelerator cards from
6161 Baltimore Technologies. (Use engine 'sureware')
6162 [Baltimore Technologies and Mark Cox]
6164 *) [In 0.9.6c-engine release:]
6165 Add support for crypto accelerator cards from Accelerated
6166 Encryption Processing, www.aep.ie. (Use engine 'aep')
6167 [AEP Inc. and Mark Cox]
6169 *) Add a configuration entry for gcc on UnixWare.
6170 [Gary Benson <gbenson@redhat.com>]
6172 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6173 messages are stored in a single piece (fixed-length part and
6174 variable-length part combined) and fix various bugs found on the way.
6177 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6178 instead. BIO_gethostbyname() does not know what timeouts are
6179 appropriate, so entries would stay in cache even when they have
6181 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6183 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6184 faced with a pathologically small ClientHello fragment that does
6185 not contain client_version: Instead of aborting with an error,
6186 simply choose the highest available protocol version (i.e.,
6187 TLS 1.0 unless it is disabled). In practice, ClientHello
6188 messages are never sent like this, but this change gives us
6189 strictly correct behaviour at least for TLS.
6192 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6193 never resets s->method to s->ctx->method when called from within
6194 one of the SSL handshake functions.
6195 [Bodo Moeller; problem pointed out by Niko Baric]
6197 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6198 (sent using the client's version number) if client_version is
6199 smaller than the protocol version in use. Also change
6200 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6201 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6202 the client will at least see that alert.
6205 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6209 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6210 client receives HelloRequest while in a handshake.
6211 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6213 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6214 should end in 'break', not 'goto end' which circuments various
6215 cleanups done in state SSL_ST_OK. But session related stuff
6216 must be disabled for SSL_ST_OK in the case that we just sent a
6219 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6220 before just sending a HelloRequest.
6221 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6223 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6224 reveal whether illegal block cipher padding was found or a MAC
6225 verification error occured. (Neither SSLerr() codes nor alerts
6226 are directly visible to potential attackers, but the information
6227 may leak via logfiles.)
6229 Similar changes are not required for the SSL 2.0 implementation
6230 because the number of padding bytes is sent in clear for SSL 2.0,
6231 and the extra bytes are just ignored. However ssl/s2_pkt.c
6232 failed to verify that the purported number of padding bytes is in
6236 *) Add OpenUNIX-8 support including shared libraries
6237 (Boyd Lynn Gerber <gerberb@zenez.com>).
6240 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6241 'wristwatch attack' using huge encoding parameters (cf.
6242 James H. Manger's CRYPTO 2001 paper). Note that the
6243 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6244 encoding parameters and hence was not vulnerable.
6247 *) BN_sqr() bug fix.
6248 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6250 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6251 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6252 followed by modular reduction.
6253 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6255 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6256 equivalent based on BN_pseudo_rand() instead of BN_rand().
6259 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6260 This function was broken, as the check for a new client hello message
6261 to handle SGC did not allow these large messages.
6262 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6265 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6268 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6269 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6272 *) Rework the configuration and shared library support for Tru64 Unix.
6273 The configuration part makes use of modern compiler features and
6274 still retains old compiler behavior for those that run older versions
6275 of the OS. The shared library support part includes a variant that
6276 uses the RPATH feature, and is available through the special
6277 configuration target "alpha-cc-rpath", which will never be selected
6279 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6281 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6282 with the same message size as in ssl3_get_certificate_request().
6283 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6284 messages might inadvertently be reject as too long.
6285 [Petr Lampa <lampa@fee.vutbr.cz>]
6287 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6290 *) Modified SSL library such that the verify_callback that has been set
6291 specificly for an SSL object with SSL_set_verify() is actually being
6292 used. Before the change, a verify_callback set with this function was
6293 ignored and the verify_callback() set in the SSL_CTX at the time of
6294 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6295 to allow the necessary settings.
6298 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6299 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6300 done automatically (in contradiction to the requirements of the C
6301 standard). This made problems when used from OpenSSH.
6304 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6305 dh->length and always used
6307 BN_rand_range(priv_key, dh->p).
6309 BN_rand_range() is not necessary for Diffie-Hellman, and this
6310 specific range makes Diffie-Hellman unnecessarily inefficient if
6311 dh->length (recommended exponent length) is much smaller than the
6312 length of dh->p. We could use BN_rand_range() if the order of
6313 the subgroup was stored in the DH structure, but we only have
6318 BN_rand(priv_key, l, ...)
6320 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6326 RSA_eay_public_encrypt
6327 RSA_eay_private_decrypt
6328 RSA_eay_private_encrypt (signing)
6329 RSA_eay_public_decrypt (signature verification)
6331 (default implementations for RSA_public_encrypt,
6332 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6333 always reject numbers >= n.
6336 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6337 to synchronize access to 'locking_thread'. This is necessary on
6338 systems where access to 'locking_thread' (an 'unsigned long'
6339 variable) is not atomic.
6342 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6343 *before* setting the 'crypto_lock_rand' flag. The previous code had
6344 a race condition if 0 is a valid thread ID.
6345 [Travis Vitek <vitek@roguewave.com>]
6347 *) Add support for shared libraries under Irix.
6348 [Albert Chin-A-Young <china@thewrittenword.com>]
6350 *) Add configuration option to build on Linux on both big-endian and
6352 [Ralf Baechle <ralf@uni-koblenz.de>]
6354 *) Add the possibility to create shared libraries on HP-UX.
6357 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6359 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6360 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6361 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6362 PRNG state recovery was possible based on the output of
6363 one PRNG request appropriately sized to gain knowledge on
6364 'md' followed by enough consecutive 1-byte PRNG requests
6365 to traverse all of 'state'.
6367 1. When updating 'md_local' (the current thread's copy of 'md')
6368 during PRNG output generation, hash all of the previous
6369 'md_local' value, not just the half used for PRNG output.
6371 2. Make the number of bytes from 'state' included into the hash
6372 independent from the number of PRNG bytes requested.
6374 The first measure alone would be sufficient to avoid
6375 Markku-Juhani's attack. (Actually it had never occurred
6376 to me that the half of 'md_local' used for chaining was the
6377 half from which PRNG output bytes were taken -- I had always
6378 assumed that the secret half would be used.) The second
6379 measure makes sure that additional data from 'state' is never
6380 mixed into 'md_local' in small portions; this heuristically
6381 further strengthens the PRNG.
6384 *) Fix crypto/bn/asm/mips3.s.
6387 *) When only the key is given to "enc", the IV is undefined. Print out
6388 an error message in this case.
6391 *) Handle special case when X509_NAME is empty in X509 printing routines.
6394 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6395 positive and less than q.
6398 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6399 used: it isn't thread safe and the add_lock_callback should handle
6401 [Paul Rose <Paul.Rose@bridge.com>]
6403 *) Verify that incoming data obeys the block size in
6404 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6408 [Ulf Möller, Bodo Möller]
6410 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6411 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6412 when fixing the server behaviour for backwards-compatible 'client
6413 hello' messages. (Note that the attack is impractical against
6414 SSL 3.0 and TLS 1.0 anyway because length and version checking
6415 means that the probability of guessing a valid ciphertext is
6416 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6419 Before 0.9.5, the countermeasure (hide the error by generating a
6420 random 'decryption result') did not work properly because
6421 ERR_clear_error() was missing, meaning that SSL_get_error() would
6422 detect the supposedly ignored error.
6424 Both problems are now fixed.
6427 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6428 (previously it was 1024).
6431 *) Fix for compatibility mode trust settings: ignore trust settings
6432 unless some valid trust or reject settings are present.
6435 *) Fix for blowfish EVP: its a variable length cipher.
6438 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6439 parameters in DSA public key structures and return an error in the
6440 DSA routines if parameters are absent.
6443 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6444 in the current directory if neither $RANDFILE nor $HOME was set.
6445 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6446 caused some confusion to Windows users who haven't defined $HOME.
6447 Thus RAND_file_name() is changed again: e_os.h can define a
6448 DEFAULT_HOME, which will be used if $HOME is not set.
6449 For Windows, we use "C:"; on other platforms, we still require
6450 environment variables.
6452 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6453 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6454 having multiple threads call RAND_poll() concurrently.
6457 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6458 combination of a flag and a thread ID variable.
6459 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6460 flag), *other* threads can enter ssleay_add_bytes without obeying
6461 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6462 that they do not hold after the first thread unsets add_do_not_lock).
6465 *) Change bctest again: '-x' expressions are not available in all
6469 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6471 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6472 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6474 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6475 the default extension for executables, if any. Also, make the perl
6476 scripts that use symlink() to test if it really exists and use "cp"
6477 if it doesn't. All this made OpenSSL compilable and installable in
6481 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6482 If SEQUENCE is length is indefinite just set c->slen to the total
6483 amount of data available.
6484 [Steve Henson, reported by shige@FreeBSD.org]
6485 [This change does not apply to 0.9.7.]
6487 *) Change bctest to avoid here-documents inside command substitution
6488 (workaround for FreeBSD /bin/sh bug).
6489 For compatibility with Ultrix, avoid shell functions (introduced
6490 in the bctest version that searches along $PATH).
6493 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6494 with des_encrypt() defined on some operating systems, like Solaris
6498 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6499 On the Importance of Eliminating Errors in Cryptographic
6500 Computations, J. Cryptology 14 (2001) 2, 101-119,
6501 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6504 *) MIPS assembler BIGNUM division bug fix.
6507 *) Disabled incorrect Alpha assembler code.
6510 *) Fix PKCS#7 decode routines so they correctly update the length
6511 after reading an EOC for the EXPLICIT tag.
6513 [This change does not apply to 0.9.7.]
6515 *) Fix bug in PKCS#12 key generation routines. This was triggered
6516 if a 3DES key was generated with a 0 initial byte. Include
6517 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6518 (but broken) behaviour.
6521 *) Enhance bctest to search for a working bc along $PATH and print
6523 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6525 *) Fix memory leaks in err.c: free err_data string if necessary;
6526 don't write to the wrong index in ERR_set_error_data.
6529 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6533 *) Replace rdtsc with _emit statements for VC++ version 5.
6534 [Jeremy Cooper <jeremy@baymoo.org>]
6536 *) Make it possible to reuse SSLv2 sessions.
6539 *) In copy_email() check for >= 0 as a return value for
6540 X509_NAME_get_index_by_NID() since 0 is a valid index.
6541 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6543 *) Avoid coredump with unsupported or invalid public keys by checking if
6544 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6545 PKCS7_verify() fails with non detached data.
6548 *) Don't use getenv in library functions when run as setuid/setgid.
6549 New function OPENSSL_issetugid().
6552 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6553 due to incorrect handling of multi-threading:
6555 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6557 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6559 3. Count how many times MemCheck_off() has been called so that
6560 nested use can be treated correctly. This also avoids
6561 inband-signalling in the previous code (which relied on the
6562 assumption that thread ID 0 is impossible).
6565 *) Add "-rand" option also to s_client and s_server.
6568 *) Fix CPU detection on Irix 6.x.
6569 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6570 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6572 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6575 [This change does not apply to 0.9.7.]
6577 *) Use the cached encoding of an X509_NAME structure rather than
6578 copying it. This is apparently the reason for the libsafe "errors"
6579 but the code is actually correct.
6582 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6583 Bleichenbacher's DSA attack.
6584 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6585 to be set and top=0 forces the highest bit to be set; top=-1 is new
6586 and leaves the highest bit random.
6587 [Ulf Moeller, Bodo Moeller]
6589 *) In the NCONF_...-based implementations for CONF_... queries
6590 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6591 a temporary CONF structure with the data component set to NULL
6592 (which gives segmentation faults in lh_retrieve).
6593 Instead, use NULL for the CONF pointer in CONF_get_string and
6594 CONF_get_number (which may use environment variables) and directly
6595 return NULL from CONF_get_section.
6598 *) Fix potential buffer overrun for EBCDIC.
6601 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6602 keyUsage if basicConstraints absent for a CA.
6605 *) Make SMIME_write_PKCS7() write mail header values with a format that
6606 is more generally accepted (no spaces before the semicolon), since
6607 some programs can't parse those values properly otherwise. Also make
6608 sure BIO's that break lines after each write do not create invalid
6612 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6613 macros previously used would not encode an empty SEQUENCE OF
6614 and break the signature.
6616 [This change does not apply to 0.9.7.]
6618 *) Zero the premaster secret after deriving the master secret in
6622 *) Add some EVP_add_digest_alias registrations (as found in
6623 OpenSSL_add_all_digests()) to SSL_library_init()
6624 aka OpenSSL_add_ssl_algorithms(). This provides improved
6625 compatibility with peers using X.509 certificates
6626 with unconventional AlgorithmIdentifier OIDs.
6629 *) Fix for Irix with NO_ASM.
6630 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6632 *) ./config script fixes.
6633 [Ulf Moeller, Richard Levitte]
6635 *) Fix 'openssl passwd -1'.
6638 *) Change PKCS12_key_gen_asc() so it can cope with non null
6639 terminated strings whose length is passed in the passlen
6640 parameter, for example from PEM callbacks. This was done
6641 by adding an extra length parameter to asc2uni().
6642 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6644 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6645 call failed, free the DSA structure.
6648 *) Fix to uni2asc() to cope with zero length Unicode strings.
6649 These are present in some PKCS#12 files.
6652 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6653 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6654 when writing a 32767 byte record.
6655 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6657 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6658 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6660 (RSA objects have a reference count access to which is protected
6661 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6662 so they are meant to be shared between threads.)
6663 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6664 "Reddie, Steven" <Steven.Reddie@ca.com>]
6666 *) Fix a deadlock in CRYPTO_mem_leaks().
6669 *) Use better test patterns in bntest.
6672 *) rand_win.c fix for Borland C.
6675 *) BN_rshift bugfix for n == 0.
6678 *) Add a 'bctest' script that checks for some known 'bc' bugs
6679 so that 'make test' does not abort just because 'bc' is broken.
6682 *) Store verify_result within SSL_SESSION also for client side to
6683 avoid potential security hole. (Re-used sessions on the client side
6684 always resulted in verify_result==X509_V_OK, not using the original
6685 result of the server certificate verification.)
6688 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6689 SSL3_RT_APPLICATION_DATA, return 0.
6690 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6694 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6695 releases, have been re-implemented by renaming the previous
6696 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6697 and ssl3_read_internal, respectively, and adding 'peek' parameters
6698 to them. The new ssl[23]_{read,peek} functions are calls to
6699 ssl[23]_read_internal with the 'peek' flag set appropriately.
6700 A 'peek' parameter has also been added to ssl3_read_bytes, which
6701 does the actual work for ssl3_read_internal.
6704 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6705 the method-specific "init()" handler. Also clean up ex_data after
6706 calling the method-specific "finish()" handler. Previously, this was
6707 happening the other way round.
6710 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6711 The previous value, 12, was not always sufficient for BN_mod_exp().
6714 *) Make sure that shared libraries get the internal name engine with
6715 the full version number and not just 0. This should mark the
6716 shared libraries as not backward compatible. Of course, this should
6717 be changed again when we can guarantee backward binary compatibility.
6720 *) Fix typo in get_cert_by_subject() in by_dir.c
6721 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6723 *) Rework the system to generate shared libraries:
6725 - Make note of the expected extension for the shared libraries and
6726 if there is a need for symbolic links from for example libcrypto.so.0
6727 to libcrypto.so.0.9.7. There is extended info in Configure for
6730 - Make as few rebuilds of the shared libraries as possible.
6732 - Still avoid linking the OpenSSL programs with the shared libraries.
6734 - When installing, install the shared libraries separately from the
6738 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6740 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6741 and not in SSL_clear because the latter is also used by the
6742 accept/connect functions; previously, the settings made by
6743 SSL_set_read_ahead would be lost during the handshake.
6744 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6746 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6747 Previously, it would create entries for disableed algorithms no
6751 *) Added several new manual pages for SSL_* function.
6754 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6756 *) In ssl23_get_client_hello, generate an error message when faced
6757 with an initial SSL 3.0/TLS record that is too small to contain the
6758 first two bytes of the ClientHello message, i.e. client_version.
6759 (Note that this is a pathologic case that probably has never happened
6760 in real life.) The previous approach was to use the version number
6761 from the record header as a substitute; but our protocol choice
6762 should not depend on that one because it is not authenticated
6763 by the Finished messages.
6766 *) More robust randomness gathering functions for Windows.
6767 [Jeffrey Altman <jaltman@columbia.edu>]
6769 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6770 not set then we don't setup the error code for issuer check errors
6771 to avoid possibly overwriting other errors which the callback does
6772 handle. If an application does set the flag then we assume it knows
6773 what it is doing and can handle the new informational codes
6777 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6778 a general "ANY" type, as such it should be able to decode anything
6779 including tagged types. However it didn't check the class so it would
6780 wrongly interpret tagged types in the same way as their universal
6781 counterpart and unknown types were just rejected. Changed so that the
6782 tagged and unknown types are handled in the same way as a SEQUENCE:
6783 that is the encoding is stored intact. There is also a new type
6784 "V_ASN1_OTHER" which is used when the class is not universal, in this
6785 case we have no idea what the actual type is so we just lump them all
6789 *) On VMS, stdout may very well lead to a file that is written to
6790 in a record-oriented fashion. That means that every write() will
6791 write a separate record, which will be read separately by the
6792 programs trying to read from it. This can be very confusing.
6794 The solution is to put a BIO filter in the way that will buffer
6795 text until a linefeed is reached, and then write everything a
6796 line at a time, so every record written will be an actual line,
6797 not chunks of lines and not (usually doesn't happen, but I've
6798 seen it once) several lines in one record. BIO_f_linebuffer() is
6801 Currently, it's a VMS-only method, because that's where it has
6802 been tested well enough.
6805 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6806 it can return incorrect results.
6807 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6808 but it was in 0.9.6-beta[12].)
6811 *) Disable the check for content being present when verifying detached
6812 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6813 include zero length content when signing messages.
6816 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6817 BIO_ctrl (for BIO pairs).
6820 *) Add DSO method for VMS.
6823 *) Bug fix: Montgomery multiplication could produce results with the
6827 *) Add RPM specification openssl.spec and modify it to build three
6828 packages. The default package contains applications, application
6829 documentation and run-time libraries. The devel package contains
6830 include files, static libraries and function documentation. The
6831 doc package contains the contents of the doc directory. The original
6832 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6835 *) Add a large number of documentation files for many SSL routines.
6836 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6838 *) Add a configuration entry for Sony News 4.
6839 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6841 *) Don't set the two most significant bits to one when generating a
6842 random number < q in the DSA library.
6845 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6846 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6847 the underlying transport is blocking) if a handshake took place.
6848 (The default behaviour is needed by applications such as s_client
6849 and s_server that use select() to determine when to use SSL_read;
6850 but for applications that know in advance when to expect data, it
6851 just makes things more complicated.)
6854 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6858 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6859 work better on such systems.
6860 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6862 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6863 Update PKCS12_parse() so it copies the friendlyName and the
6864 keyid to the certificates aux info.
6867 *) Fix bug in PKCS7_verify() which caused an infinite loop
6868 if there was more than one signature.
6869 [Sven Uszpelkat <su@celocom.de>]
6871 *) Major change in util/mkdef.pl to include extra information
6872 about each symbol, as well as presentig variables as well
6873 as functions. This change means that there's n more need
6874 to rebuild the .num files when some algorithms are excluded.
6877 *) Allow the verify time to be set by an application,
6878 rather than always using the current time.
6881 *) Phase 2 verify code reorganisation. The certificate
6882 verify code now looks up an issuer certificate by a
6883 number of criteria: subject name, authority key id
6884 and key usage. It also verifies self signed certificates
6885 by the same criteria. The main comparison function is
6886 X509_check_issued() which performs these checks.
6888 Lot of changes were necessary in order to support this
6889 without completely rewriting the lookup code.
6891 Authority and subject key identifier are now cached.
6893 The LHASH 'certs' is X509_STORE has now been replaced
6894 by a STACK_OF(X509_OBJECT). This is mainly because an
6895 LHASH can't store or retrieve multiple objects with
6896 the same hash value.
6898 As a result various functions (which were all internal
6899 use only) have changed to handle the new X509_STORE
6900 structure. This will break anything that messed round
6901 with X509_STORE internally.
6903 The functions X509_STORE_add_cert() now checks for an
6904 exact match, rather than just subject name.
6906 The X509_STORE API doesn't directly support the retrieval
6907 of multiple certificates matching a given criteria, however
6908 this can be worked round by performing a lookup first
6909 (which will fill the cache with candidate certificates)
6910 and then examining the cache for matches. This is probably
6911 the best we can do without throwing out X509_LOOKUP
6912 entirely (maybe later...).
6914 The X509_VERIFY_CTX structure has been enhanced considerably.
6916 All certificate lookup operations now go via a get_issuer()
6917 callback. Although this currently uses an X509_STORE it
6918 can be replaced by custom lookups. This is a simple way
6919 to bypass the X509_STORE hackery necessary to make this
6920 work and makes it possible to use more efficient techniques
6921 in future. A very simple version which uses a simple
6922 STACK for its trusted certificate store is also provided
6923 using X509_STORE_CTX_trusted_stack().
6925 The verify_cb() and verify() callbacks now have equivalents
6926 in the X509_STORE_CTX structure.
6928 X509_STORE_CTX also has a 'flags' field which can be used
6929 to customise the verify behaviour.
6932 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6933 excludes S/MIME capabilities.
6936 *) When a certificate request is read in keep a copy of the
6937 original encoding of the signed data and use it when outputing
6938 again. Signatures then use the original encoding rather than
6939 a decoded, encoded version which may cause problems if the
6940 request is improperly encoded.
6943 *) For consistency with other BIO_puts implementations, call
6944 buffer_write(b, ...) directly in buffer_puts instead of calling
6947 In BIO_puts, increment b->num_write as in BIO_write.
6948 [Peter.Sylvester@EdelWeb.fr]
6950 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6951 BN_zero, we may not return a BIGNUM with an array consisting of
6955 *) Avoid calling abort() from within the library when problems are
6956 detected, except if preprocessor symbols have been defined
6957 (such as REF_CHECK, BN_DEBUG etc.).
6960 *) New openssl application 'rsautl'. This utility can be
6961 used for low level RSA operations. DER public key
6962 BIO/fp routines also added.
6965 *) New Configure entry and patches for compiling on QNX 4.
6966 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6968 *) A demo state-machine implementation was sponsored by
6969 Nuron (http://www.nuron.com/) and is now available in
6970 demos/state_machine.
6973 *) New options added to the 'dgst' utility for signature
6974 generation and verification.
6977 *) Unrecognized PKCS#7 content types are now handled via a
6978 catch all ASN1_TYPE structure. This allows unsupported
6979 types to be stored as a "blob" and an application can
6980 encode and decode it manually.
6983 *) Fix various signed/unsigned issues to make a_strex.c
6985 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6987 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6988 length if passed a buffer. ASN1_INTEGER_to_BN failed
6989 if passed a NULL BN and its argument was negative.
6990 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6992 *) Modification to PKCS#7 encoding routines to output definite
6993 length encoding. Since currently the whole structures are in
6994 memory there's not real point in using indefinite length
6995 constructed encoding. However if OpenSSL is compiled with
6996 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6999 *) Added BIO_vprintf() and BIO_vsnprintf().
7002 *) Added more prefixes to parse for in the the strings written
7003 through a logging bio, to cover all the levels that are available
7004 through syslog. The prefixes are now:
7006 PANIC, EMERG, EMR => LOG_EMERG
7007 ALERT, ALR => LOG_ALERT
7008 CRIT, CRI => LOG_CRIT
7009 ERROR, ERR => LOG_ERR
7010 WARNING, WARN, WAR => LOG_WARNING
7011 NOTICE, NOTE, NOT => LOG_NOTICE
7012 INFO, INF => LOG_INFO
7013 DEBUG, DBG => LOG_DEBUG
7015 and as before, if none of those prefixes are present at the
7016 beginning of the string, LOG_ERR is chosen.
7018 On Win32, the LOG_* levels are mapped according to this:
7020 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
7021 LOG_WARNING => EVENTLOG_WARNING_TYPE
7022 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
7026 *) Made it possible to reconfigure with just the configuration
7027 argument "reconf" or "reconfigure". The command line arguments
7028 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
7029 and are retrieved from there when reconfiguring.
7033 [Assar Westerlund <assar@sics.se>, Richard Levitte]
7035 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
7038 *) The obj_dat.pl script was messing up the sorting of object
7039 names. The reason was that it compared the quoted version
7040 of strings as a result "OCSP" > "OCSP Signing" because
7041 " > SPACE. Changed script to store unquoted versions of
7042 names and add quotes on output. It was also omitting some
7043 names from the lookup table if they were given a default
7044 value (that is if SN is missing it is given the same
7045 value as LN and vice versa), these are now added on the
7046 grounds that if an object has a name we should be able to
7047 look it up. Finally added warning output when duplicate
7048 short or long names are found.
7051 *) Changes needed for Tandem NSK.
7052 [Scott Uroff <scott@xypro.com>]
7054 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
7055 RSA_padding_check_SSLv23(), special padding was never detected
7056 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
7057 version rollback attacks was not effective.
7059 In s23_clnt.c, don't use special rollback-attack detection padding
7060 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
7061 client; similarly, in s23_srvr.c, don't do the rollback check if
7062 SSL 2.0 is the only protocol enabled in the server.
7065 *) Make it possible to get hexdumps of unprintable data with 'openssl
7066 asn1parse'. By implication, the functions ASN1_parse_dump() and
7067 BIO_dump_indent() are added.
7070 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7071 these print out strings and name structures based on various
7072 flags including RFC2253 support and proper handling of
7073 multibyte characters. Added options to the 'x509' utility
7074 to allow the various flags to be set.
7077 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7078 Also change the functions X509_cmp_current_time() and
7079 X509_gmtime_adj() work with an ASN1_TIME structure,
7080 this will enable certificates using GeneralizedTime in validity
7081 dates to be checked.
7084 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7085 negative public key encodings) on by default,
7086 NO_NEG_PUBKEY_BUG can be set to disable it.
7089 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7090 content octets. An i2c_ASN1_OBJECT is unnecessary because
7091 the encoding can be trivially obtained from the structure.
7094 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7095 not read locks (CRYPTO_r_[un]lock).
7098 *) A first attempt at creating official support for shared
7099 libraries through configuration. I've kept it so the
7100 default is static libraries only, and the OpenSSL programs
7101 are always statically linked for now, but there are
7102 preparations for dynamic linking in place.
7103 This has been tested on Linux and Tru64.
7106 *) Randomness polling function for Win9x, as described in:
7107 Peter Gutmann, Software Generation of Practically Strong
7111 *) Fix so PRNG is seeded in req if using an already existing
7115 *) New options to smime application. -inform and -outform
7116 allow alternative formats for the S/MIME message including
7117 PEM and DER. The -content option allows the content to be
7118 specified separately. This should allow things like Netscape
7119 form signing output easier to verify.
7122 *) Fix the ASN1 encoding of tags using the 'long form'.
7125 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7126 STRING types. These convert content octets to and from the
7127 underlying type. The actual tag and length octets are
7128 already assumed to have been read in and checked. These
7129 are needed because all other string types have virtually
7130 identical handling apart from the tag. By having versions
7131 of the ASN1 functions that just operate on content octets
7132 IMPLICIT tagging can be handled properly. It also allows
7133 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7134 and ASN1_INTEGER are identical apart from the tag.
7137 *) Change the handling of OID objects as follows:
7139 - New object identifiers are inserted in objects.txt, following
7140 the syntax given in objects.README.
7141 - objects.pl is used to process obj_mac.num and create a new
7143 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7146 This is currently kind of a hack, and the perl code in objects.pl
7147 isn't very elegant, but it works as I intended. The simplest way
7148 to check that it worked correctly is to look in obj_dat.h and
7149 check the array nid_objs and make sure the objects haven't moved
7150 around (this is important!). Additions are OK, as well as
7151 consistent name changes.
7154 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7157 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7158 The given file adds to whatever has already been seeded into the
7159 random pool through the RANDFILE configuration file option or
7160 environment variable, or the default random state file.
7163 *) mkstack.pl now sorts each macro group into lexical order.
7164 Previously the output order depended on the order the files
7165 appeared in the directory, resulting in needless rewriting
7169 *) Patches to make OpenSSL compile under Win32 again. Mostly
7170 work arounds for the VC++ problem that it treats func() as
7171 func(void). Also stripped out the parts of mkdef.pl that
7172 added extra typesafe functions: these no longer exist.
7175 *) Reorganisation of the stack code. The macros are now all
7176 collected in safestack.h . Each macro is defined in terms of
7177 a "stack macro" of the form SKM_<name>(type, a, b). The
7178 DEBUG_SAFESTACK is now handled in terms of function casts,
7179 this has the advantage of retaining type safety without the
7180 use of additional functions. If DEBUG_SAFESTACK is not defined
7181 then the non typesafe macros are used instead. Also modified the
7182 mkstack.pl script to handle the new form. Needs testing to see
7183 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7184 the default if no major problems. Similar behaviour for ASN1_SET_OF
7185 and PKCS12_STACK_OF.
7188 *) When some versions of IIS use the 'NET' form of private key the
7189 key derivation algorithm is different. Normally MD5(password) is
7190 used as a 128 bit RC4 key. In the modified case
7191 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7192 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7193 as the old Netscape_RSA functions except they have an additional
7194 'sgckey' parameter which uses the modified algorithm. Also added
7195 an -sgckey command line option to the rsa utility. Thanks to
7196 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7197 algorithm to openssl-dev.
7200 *) The evp_local.h macros were using 'c.##kname' which resulted in
7201 invalid expansion on some systems (SCO 5.0.5 for example).
7202 Corrected to 'c.kname'.
7203 [Phillip Porch <root@theporch.com>]
7205 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7206 a STACK of email addresses from a certificate or request, these look
7207 in the subject name and the subject alternative name extensions and
7208 omit any duplicate addresses.
7211 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7212 This makes DSA verification about 2 % faster.
7215 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7216 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7217 plus overhead for 1024 bit moduli).
7218 This makes exponentiations about 0.5 % faster for 1024 bit
7219 exponents (as measured by "openssl speed rsa2048").
7222 *) Rename memory handling macros to avoid conflicts with other
7224 Malloc => OPENSSL_malloc
7225 Malloc_locked => OPENSSL_malloc_locked
7226 Realloc => OPENSSL_realloc
7227 Free => OPENSSL_free
7230 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7231 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7234 *) CygWin32 support.
7235 [John Jarvie <jjarvie@newsguy.com>]
7237 *) The type-safe stack code has been rejigged. It is now only compiled
7238 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7239 by default all type-specific stack functions are "#define"d back to
7240 standard stack functions. This results in more streamlined output
7241 but retains the type-safety checking possibilities of the original
7245 *) The STACK code has been cleaned up, and certain type declarations
7246 that didn't make a lot of sense have been brought in line. This has
7247 also involved a cleanup of sorts in safestack.h to more correctly
7248 map type-safe stack functions onto their plain stack counterparts.
7249 This work has also resulted in a variety of "const"ifications of
7250 lots of the code, especially "_cmp" operations which should normally
7251 be prototyped with "const" parameters anyway.
7254 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7255 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7256 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7257 where all of 'md' is used each time the PRNG is used, but 'state'
7258 is used only indexed by a cyclic counter. As entropy may not be
7259 well distributed from the beginning, 'md' is important as a
7260 chaining variable. However, the output function chains only half
7261 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7262 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7263 in all of 'state' being rewritten, with the new values depending
7264 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7267 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7268 the handshake is continued after ssl_verify_cert_chain();
7269 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7270 can lead to 'unexplainable' connection aborts later.
7271 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7273 *) Major EVP API cipher revision.
7274 Add hooks for extra EVP features. This allows various cipher
7275 parameters to be set in the EVP interface. Support added for variable
7276 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7277 setting of RC2 and RC5 parameters.
7279 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7282 Remove lots of duplicated code from the EVP library. For example *every*
7283 cipher init() function handles the 'iv' in the same way according to the
7284 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7285 for CFB and OFB modes they zero ctx->num.
7287 New functionality allows removal of S/MIME code RC2 hack.
7289 Most of the routines have the same form and so can be declared in terms
7292 By shifting this to the top level EVP_CipherInit() it can be removed from
7293 all individual ciphers. If the cipher wants to handle IVs or keys
7294 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7297 Change lots of functions like EVP_EncryptUpdate() to now return a
7298 value: although software versions of the algorithms cannot fail
7299 any installed hardware versions can.
7302 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7303 this option is set, tolerate broken clients that send the negotiated
7304 protocol version number instead of the requested protocol version
7308 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7309 i.e. non-zero for export ciphersuites, zero otherwise.
7310 Previous versions had this flag inverted, inconsistent with
7311 rsa_tmp_cb (..._TMP_RSA_CB).
7312 [Bodo Moeller; problem reported by Amit Chopra]
7314 *) Add missing DSA library text string. Work around for some IIS
7315 key files with invalid SEQUENCE encoding.
7318 *) Add a document (doc/standards.txt) that list all kinds of standards
7319 and so on that are implemented in OpenSSL.
7322 *) Enhance c_rehash script. Old version would mishandle certificates
7323 with the same subject name hash and wouldn't handle CRLs at all.
7324 Added -fingerprint option to crl utility, to support new c_rehash
7328 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7331 *) Fix for SSL server purpose checking. Server checking was
7332 rejecting certificates which had extended key usage present
7333 but no ssl client purpose.
7334 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7336 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7337 is a little unclear about how a blank password is handled.
7338 Since the password in encoded as a BMPString with terminating
7339 double NULL a zero length password would end up as just the
7340 double NULL. However no password at all is different and is
7341 handled differently in the PKCS#12 key generation code. NS
7342 treats a blank password as zero length. MSIE treats it as no
7343 password on export: but it will try both on import. We now do
7344 the same: PKCS12_parse() tries zero length and no password if
7345 the password is set to "" or NULL (NULL is now a valid password:
7346 it wasn't before) as does the pkcs12 application.
7349 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7350 perror when PEM_read_bio_X509_REQ fails, the error message must
7351 be obtained from the error queue.
7354 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7355 it in ERR_remove_state if appropriate, and change ERR_get_state
7356 accordingly to avoid race conditions (this is necessary because
7357 thread_hash is no longer constant once set).
7360 *) Bugfix for linux-elf makefile.one.
7363 *) RSA_get_default_method() will now cause a default
7364 RSA_METHOD to be chosen if one doesn't exist already.
7365 Previously this was only set during a call to RSA_new()
7366 or RSA_new_method(NULL) meaning it was possible for
7367 RSA_get_default_method() to return NULL.
7370 *) Added native name translation to the existing DSO code
7371 that will convert (if the flag to do so is set) filenames
7372 that are sufficiently small and have no path information
7373 into a canonical native form. Eg. "blah" converted to
7374 "libblah.so" or "blah.dll" etc.
7377 *) New function ERR_error_string_n(e, buf, len) which is like
7378 ERR_error_string(e, buf), but writes at most 'len' bytes
7379 including the 0 terminator. For ERR_error_string_n, 'buf'
7381 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7383 *) CONF library reworked to become more general. A new CONF
7384 configuration file reader "class" is implemented as well as a
7385 new functions (NCONF_*, for "New CONF") to handle it. The now
7386 old CONF_* functions are still there, but are reimplemented to
7387 work in terms of the new functions. Also, a set of functions
7388 to handle the internal storage of the configuration data is
7389 provided to make it easier to write new configuration file
7390 reader "classes" (I can definitely see something reading a
7391 configuration file in XML format, for example), called _CONF_*,
7392 or "the configuration storage API"...
7394 The new configuration file reading functions are:
7396 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7397 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7399 NCONF_default, NCONF_WIN32
7401 NCONF_dump_fp, NCONF_dump_bio
7403 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7404 NCONF_new creates a new CONF object. This works in the same way
7405 as other interfaces in OpenSSL, like the BIO interface.
7406 NCONF_dump_* dump the internal storage of the configuration file,
7407 which is useful for debugging. All other functions take the same
7408 arguments as the old CONF_* functions wth the exception of the
7409 first that must be a `CONF *' instead of a `LHASH *'.
7411 To make it easer to use the new classes with the old CONF_* functions,
7412 the function CONF_set_default_method is provided.
7415 *) Add '-tls1' option to 'openssl ciphers', which was already
7416 mentioned in the documentation but had not been implemented.
7417 (This option is not yet really useful because even the additional
7418 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7421 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7422 OpenSSL-based applications) load shared libraries and bind to
7423 them in a portable way.
7424 [Geoff Thorpe, with contributions from Richard Levitte]
7426 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7428 *) Make sure _lrotl and _lrotr are only used with MSVC.
7430 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7431 (the default implementation of RAND_status).
7433 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7434 to '-clrext' (= clear extensions), as intended and documented.
7435 [Bodo Moeller; inconsistency pointed out by Michael Attili
7438 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7439 was larger than the MD block size.
7440 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7442 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7443 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7444 using the passed key: if the passed key was a private key the result
7445 of X509_print(), for example, would be to print out all the private key
7449 *) des_quad_cksum() byte order bug fix.
7450 [Ulf Möller, using the problem description in krb4-0.9.7, where
7451 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7453 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7455 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7457 *) For easily testing in shell scripts whether some command
7458 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7459 returns with exit code 0 iff no command of the given name is available.
7460 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7461 the output goes to stdout and nothing is printed to stderr.
7462 Additional arguments are always ignored.
7464 Since for each cipher there is a command of the same name,
7465 the 'no-cipher' compilation switches can be tested this way.
7467 ('openssl no-XXX' is not able to detect pseudo-commands such
7468 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7471 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7474 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7475 is set; it will be thrown away anyway because each handshake creates
7477 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7478 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7479 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7480 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7483 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7484 'Q' and 'R' lose their special meanings (quit/renegotiate).
7485 This is part of what -quiet does; unlike -quiet, -ign_eof
7486 does not suppress any output.
7489 *) Add compatibility options to the purpose and trust code. The
7490 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7491 accepts a certificate or CA, this was the previous behaviour,
7492 with all the associated security issues.
7494 X509_TRUST_COMPAT is the old trust behaviour: only and
7495 automatically trust self signed roots in certificate store. A
7496 new trust setting X509_TRUST_DEFAULT is used to specify that
7497 a purpose has no associated trust setting and it should instead
7498 use the value in the default purpose.
7501 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7502 and fix a memory leak.
7505 *) In util/mkerr.pl (which implements 'make errors'), preserve
7506 reason strings from the previous version of the .c file, as
7507 the default to have only downcase letters (and digits) in
7508 automatically generated reasons codes is not always appropriate.
7511 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7512 using strerror. Previously, ERR_reason_error_string() returned
7513 library names as reason strings for SYSerr; but SYSerr is a special
7514 case where small numbers are errno values, not library numbers.
7517 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7518 converts DSA parameters into DH parameters. (When creating parameters,
7519 DSA_generate_parameters is used.)
7522 *) Include 'length' (recommended exponent length) in C code generated
7523 by 'openssl dhparam -C'.
7526 *) The second argument to set_label in perlasm was already being used
7527 so couldn't be used as a "file scope" flag. Moved to third argument
7531 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7532 instead of RAND_bytes for encryption IVs and salts.
7535 *) Include RAND_status() into RAND_METHOD instead of implementing
7536 it only for md_rand.c Otherwise replacing the PRNG by calling
7537 RAND_set_rand_method would be impossible.
7540 *) Don't let DSA_generate_key() enter an infinite loop if the random
7541 number generation fails.
7544 *) New 'rand' application for creating pseudo-random output.
7547 *) Added configuration support for Linux/IA64
7548 [Rolf Haberrecker <rolf@suse.de>]
7550 *) Assembler module support for Mingw32.
7553 *) Shared library support for HPUX (in shlib/).
7554 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7556 *) Shared library support for Solaris gcc.
7557 [Lutz Behnke <behnke@trustcenter.de>]
7559 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7561 *) PKCS7_encrypt() was adding text MIME headers twice because they
7562 were added manually and by SMIME_crlf_copy().
7565 *) In bntest.c don't call BN_rand with zero bits argument.
7566 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7568 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7569 case was implemented. This caused BN_div_recp() to fail occasionally.
7572 *) Add an optional second argument to the set_label() in the perl
7573 assembly language builder. If this argument exists and is set
7574 to 1 it signals that the assembler should use a symbol whose
7575 scope is the entire file, not just the current function. This
7576 is needed with MASM which uses the format label:: for this scope.
7577 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7579 *) Change the ASN1 types so they are typedefs by default. Before
7580 almost all types were #define'd to ASN1_STRING which was causing
7581 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7585 *) Change names of new functions to the new get1/get0 naming
7586 convention: After 'get1', the caller owns a reference count
7587 and has to call ..._free; 'get0' returns a pointer to some
7588 data structure without incrementing reference counters.
7589 (Some of the existing 'get' functions increment a reference
7590 counter, some don't.)
7591 Similarly, 'set1' and 'add1' functions increase reference
7592 counters or duplicate objects.
7595 *) Allow for the possibility of temp RSA key generation failure:
7596 the code used to assume it always worked and crashed on failure.
7599 *) Fix potential buffer overrun problem in BIO_printf().
7600 [Ulf Möller, using public domain code by Patrick Powell; problem
7601 pointed out by David Sacerdote <das33@cornell.edu>]
7603 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7604 RAND_egd() and RAND_status(). In the command line application,
7605 the EGD socket can be specified like a seed file using RANDFILE
7609 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7610 Some CAs (e.g. Verisign) distribute certificates in this form.
7613 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7614 list to exclude them. This means that no special compilation option
7615 is needed to use anonymous DH: it just needs to be included in the
7619 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7620 EVP_MD_type. The old functionality is available in a new macro called
7621 EVP_MD_md(). Change code that uses it and update docs.
7624 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7625 where the 'void *' argument is replaced by a function pointer argument.
7626 Previously 'void *' was abused to point to functions, which works on
7627 many platforms, but is not correct. As these functions are usually
7628 called by macros defined in OpenSSL header files, most source code
7629 should work without changes.
7632 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7633 sections with information on -D... compiler switches used for
7634 compiling the library so that applications can see them. To enable
7635 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7636 must be defined. E.g.,
7637 #define OPENSSL_ALGORITHM_DEFINES
7638 #include <openssl/opensslconf.h>
7639 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7640 [Richard Levitte, Ulf and Bodo Möller]
7642 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7646 *) Change the 'other' type in certificate aux info to a STACK_OF
7647 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7648 the required ASN1 format: arbitrary types determined by an OID.
7651 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7652 argument to 'req'. This is not because the function is newer or
7653 better than others it just uses the work 'NEW' in the certificate
7654 request header lines. Some software needs this.
7657 *) Reorganise password command line arguments: now passwords can be
7658 obtained from various sources. Delete the PEM_cb function and make
7659 it the default behaviour: i.e. if the callback is NULL and the
7660 usrdata argument is not NULL interpret it as a null terminated pass
7661 phrase. If usrdata and the callback are NULL then the pass phrase
7662 is prompted for as usual.
7665 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7666 the support is automatically enabled. The resulting binaries will
7667 autodetect the card and use it if present.
7668 [Ben Laurie and Compaq Inc.]
7670 *) Work around for Netscape hang bug. This sends certificate request
7671 and server done in one record. Since this is perfectly legal in the
7672 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7673 the bugs/SSLv3 entry for more info.
7676 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7679 *) Add -rand argument to smime and pkcs12 applications and read/write
7683 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7686 *) Add command line password options to the remaining applications.
7689 *) Bug fix for BN_div_recp() for numerators with an even number of
7693 *) More tests in bntest.c, and changed test_bn output.
7696 *) ./config recognizes MacOS X now.
7699 *) Bug fix for BN_div() when the first words of num and divsor are
7700 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7703 *) Add support for various broken PKCS#8 formats, and command line
7704 options to produce them.
7707 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7708 get temporary BIGNUMs from a BN_CTX.
7711 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7715 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7716 include a #define from the old name to the new. The original intent
7717 was that statically linked binaries could for example just call
7718 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7719 link with digests. This never worked becayse SSLeay_add_all_digests()
7720 and SSLeay_add_all_ciphers() were in the same source file so calling
7721 one would link with the other. They are now in separate source files.
7724 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7727 *) Use a less unusual form of the Miller-Rabin primality test (it used
7728 a binary algorithm for exponentiation integrated into the Miller-Rabin
7729 loop, our standard modexp algorithms are faster).
7732 *) Support for the EBCDIC character set completed.
7733 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7735 *) Source code cleanups: use const where appropriate, eliminate casts,
7736 use void * instead of char * in lhash.
7739 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7740 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7741 this the server could overwrite ephemeral keys that the client
7745 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7746 using 50 iterations of the Rabin-Miller test.
7748 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7749 iterations of the Rabin-Miller test as required by the appendix
7750 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7751 As BN_is_prime_fasttest includes trial division, DSA parameter
7752 generation becomes much faster.
7754 This implies a change for the callback functions in DSA_is_prime
7755 and DSA_generate_parameters: The callback function is called once
7756 for each positive witness in the Rabin-Miller test, not just
7757 occasionally in the inner loop; and the parameters to the
7758 callback function now provide an iteration count for the outer
7759 loop rather than for the current invocation of the inner loop.
7760 DSA_generate_parameters additionally can call the callback
7761 function with an 'iteration count' of -1, meaning that a
7762 candidate has passed the trial division test (when q is generated
7763 from an application-provided seed, trial division is skipped).
7766 *) New function BN_is_prime_fasttest that optionally does trial
7767 division before starting the Rabin-Miller test and has
7768 an additional BN_CTX * argument (whereas BN_is_prime always
7769 has to allocate at least one BN_CTX).
7770 'callback(1, -1, cb_arg)' is called when a number has passed the
7771 trial division stage.
7774 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7778 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7781 *) New function BN_pseudo_rand().
7784 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7785 bignum version of BN_from_montgomery() with the working code from
7786 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7790 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7791 made it impossible to use the same SSL_SESSION data structure in
7792 SSL2 clients in multiple threads.
7795 *) The return value of RAND_load_file() no longer counts bytes obtained
7796 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7797 to seed the PRNG (previously an explicit byte count was required).
7798 [Ulf Möller, Bodo Möller]
7800 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7801 used (char *) instead of (void *) and had casts all over the place.
7804 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7807 *) Retain source code compatibility for BN_prime_checks macro:
7808 BN_is_prime(..., BN_prime_checks, ...) now uses
7809 BN_prime_checks_for_size to determine the appropriate number of
7810 Rabin-Miller iterations.
7813 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7814 DH_CHECK_P_NOT_SAFE_PRIME.
7815 (Check if this is true? OpenPGP calls them "strong".)
7818 *) Merge the functionality of "dh" and "gendh" programs into a new program
7819 "dhparam". The old programs are retained for now but will handle DH keys
7820 (instead of parameters) in future.
7823 *) Make the ciphers, s_server and s_client programs check the return values
7824 when a new cipher list is set.
7827 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7828 ciphers. Before when the 56bit ciphers were enabled the sorting was
7831 The syntax for the cipher sorting has been extended to support sorting by
7832 cipher-strength (using the strength_bits hard coded in the tables).
7833 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7835 Fix a bug in the cipher-command parser: when supplying a cipher command
7836 string with an "undefined" symbol (neither command nor alphanumeric
7837 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7838 an error is flagged.
7840 Due to the strength-sorting extension, the code of the
7841 ssl_create_cipher_list() function was completely rearranged. I hope that
7842 the readability was also increased :-)
7843 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7845 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7846 for the first serial number and places 2 in the serial number file. This
7847 avoids problems when the root CA is created with serial number zero and
7848 the first user certificate has the same issuer name and serial number
7852 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7853 the new code. Add documentation for this stuff.
7856 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7857 X509_*() to X509at_*() on the grounds that they don't handle X509
7858 structures and behave in an analagous way to the X509v3 functions:
7859 they shouldn't be called directly but wrapper functions should be used
7862 So we also now have some wrapper functions that call the X509at functions
7863 when passed certificate requests. (TO DO: similar things can be done with
7864 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7865 things. Some of these need some d2i or i2d and print functionality
7866 because they handle more complex structures.)
7869 *) Add missing #ifndefs that caused missing symbols when building libssl
7870 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7871 NO_RSA in ssl/s2*.c.
7872 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7874 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7875 has a return value which indicates the quality of the random data
7876 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7877 error queue. New function RAND_pseudo_bytes() generates output that is
7878 guaranteed to be unique but not unpredictable. RAND_add is like
7879 RAND_seed, but takes an extra argument for an entropy estimate
7880 (RAND_seed always assumes full entropy).
7883 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7884 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7885 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7886 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7887 false-positive rate of at most 2^-80 for random input.
7890 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7893 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7894 in the 0.9.5 release), this returns the chain
7895 from an X509_CTX structure with a dup of the stack and all
7896 the X509 reference counts upped: so the stack will exist
7897 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7900 Also make SSL_SESSION_print() print out the verify return
7904 *) Add manpage for the pkcs12 command. Also change the default
7905 behaviour so MAC iteration counts are used unless the new
7906 -nomaciter option is used. This improves file security and
7907 only older versions of MSIE (4.0 for example) need it.
7910 *) Honor the no-xxx Configure options when creating .DEF files.
7913 *) Add PKCS#10 attributes to field table: challengePassword,
7914 unstructuredName and unstructuredAddress. These are taken from
7915 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7916 international characters are used.
7918 More changes to X509_ATTRIBUTE code: allow the setting of types
7919 based on strings. Remove the 'loc' parameter when adding
7920 attributes because these will be a SET OF encoding which is sorted
7924 *) Initial changes to the 'req' utility to allow request generation
7925 automation. This will allow an application to just generate a template
7926 file containing all the field values and have req construct the
7929 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7930 used all over the place including certificate requests and PKCS#7
7931 structures. They are currently handled manually where necessary with
7932 some primitive wrappers for PKCS#7. The new functions behave in a
7933 manner analogous to the X509 extension functions: they allow
7934 attributes to be looked up by NID and added.
7936 Later something similar to the X509V3 code would be desirable to
7937 automatically handle the encoding, decoding and printing of the
7938 more complex types. The string types like challengePassword can
7939 be handled by the string table functions.
7941 Also modified the multi byte string table handling. Now there is
7942 a 'global mask' which masks out certain types. The table itself
7943 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7944 is useful when for example there is only one permissible type
7945 (as in countryName) and using the mask might result in no valid
7949 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7950 SSL_get_peer_finished to allow applications to obtain the latest
7951 Finished messages sent to the peer or expected from the peer,
7952 respectively. (SSL_get_peer_finished is usually the Finished message
7953 actually received from the peer, otherwise the protocol will be aborted.)
7955 As the Finished message are message digests of the complete handshake
7956 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7957 be used for external authentication procedures when the authentication
7958 provided by SSL/TLS is not desired or is not enough.
7961 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7962 the host supports BWX extension and if Compaq C is present on the
7963 $PATH. Just exploiting of the BWX extension results in 20-30%
7964 performance kick for some algorithms, e.g. DES and RC4 to mention
7965 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7969 *) Add support for MS "fast SGC". This is arguably a violation of the
7970 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7971 weak crypto and after checking the certificate is SGC a second one
7972 with strong crypto. MS SGC stops the first handshake after receiving
7973 the server certificate message and sends a second client hello. Since
7974 a server will typically do all the time consuming operations before
7975 expecting any further messages from the client (server key exchange
7976 is the most expensive) there is little difference between the two.
7978 To get OpenSSL to support MS SGC we have to permit a second client
7979 hello message after we have sent server done. In addition we have to
7980 reset the MAC if we do get this second client hello.
7983 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7984 if a DER encoded private key is RSA or DSA traditional format. Changed
7985 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7986 format DER encoded private key. Newer code should use PKCS#8 format which
7987 has the key type encoded in the ASN1 structure. Added DER private key
7988 support to pkcs8 application.
7991 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7992 ciphersuites has been selected (as required by the SSL 3/TLS 1
7993 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7994 is set, we interpret this as a request to violate the specification
7995 (the worst that can happen is a handshake failure, and 'correct'
7996 behaviour would result in a handshake failure anyway).
7999 *) In SSL_CTX_add_session, take into account that there might be multiple
8000 SSL_SESSION structures with the same session ID (e.g. when two threads
8001 concurrently obtain them from an external cache).
8002 The internal cache can handle only one SSL_SESSION with a given ID,
8003 so if there's a conflict, we now throw out the old one to achieve
8007 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
8008 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
8009 some routines that use cipher OIDs: some ciphers do not have OIDs
8010 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
8014 *) Simplify the trust setting structure and code. Now we just have
8015 two sequences of OIDs for trusted and rejected settings. These will
8016 typically have values the same as the extended key usage extension
8017 and any application specific purposes.
8019 The trust checking code now has a default behaviour: it will just
8020 check for an object with the same NID as the passed id. Functions can
8021 be provided to override either the default behaviour or the behaviour
8022 for a given id. SSL client, server and email already have functions
8023 in place for compatibility: they check the NID and also return "trusted"
8024 if the certificate is self signed.
8027 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
8028 traditional format into an EVP_PKEY structure.
8031 *) Add a password callback function PEM_cb() which either prompts for
8032 a password if usr_data is NULL or otherwise assumes it is a null
8033 terminated password. Allow passwords to be passed on command line
8034 environment or config files in a few more utilities.
8037 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
8038 keys. Add some short names for PKCS#8 PBE algorithms and allow them
8039 to be specified on the command line for the pkcs8 and pkcs12 utilities.
8040 Update documentation.
8043 *) Support for ASN1 "NULL" type. This could be handled before by using
8044 ASN1_TYPE but there wasn't any function that would try to read a NULL
8045 and produce an error if it couldn't. For compatibility we also have
8046 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
8047 don't allocate anything because they don't need to.
8050 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
8052 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
8054 *) Rebuild of the memory allocation routines used by OpenSSL code and
8055 possibly others as well. The purpose is to make an interface that
8056 provide hooks so anyone can build a separate set of allocation and
8057 deallocation routines to be used by OpenSSL, for example memory
8058 pool implementations, or something else, which was previously hard
8059 since Malloc(), Realloc() and Free() were defined as macros having
8060 the values malloc, realloc and free, respectively (except for Win32
8061 compilations). The same is provided for memory debugging code.
8062 OpenSSL already comes with functionality to find memory leaks, but
8063 this gives people a chance to debug other memory problems.
8065 With these changes, a new set of functions and macros have appeared:
8067 CRYPTO_set_mem_debug_functions() [F]
8068 CRYPTO_get_mem_debug_functions() [F]
8069 CRYPTO_dbg_set_options() [F]
8070 CRYPTO_dbg_get_options() [F]
8071 CRYPTO_malloc_debug_init() [M]
8073 The memory debug functions are NULL by default, unless the library
8074 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8075 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8076 gives the standard debugging functions that come with OpenSSL) or
8077 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8078 provided by the library user) must be used. When the standard
8079 debugging functions are used, CRYPTO_dbg_set_options can be used to
8080 request additional information:
8081 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8082 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8084 Also, things like CRYPTO_set_mem_functions will always give the
8085 expected result (the new set of functions is used for allocation
8086 and deallocation) at all times, regardless of platform and compiler
8089 To finish it up, some functions that were never use in any other
8090 way than through macros have a new API and new semantic:
8093 CRYPTO_dbg_realloc()
8096 All macros of value have retained their old syntax.
8097 [Richard Levitte and Bodo Moeller]
8099 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8100 ordering of SMIMECapabilities wasn't in "strength order" and there
8101 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8105 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8106 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8107 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8109 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8110 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8111 functionality to handle multipart/signed properly) and a utility
8112 called 'smime' to call all this stuff. This is based on code I
8113 originally wrote for Celo who have kindly allowed it to be
8114 included in OpenSSL.
8117 *) Add variants des_set_key_checked and des_set_key_unchecked of
8118 des_set_key (aka des_key_sched). Global variable des_check_key
8119 decides which of these is called by des_set_key; this way
8120 des_check_key behaves as it always did, but applications and
8121 the library itself, which was buggy for des_check_key == 1,
8122 have a cleaner way to pick the version they need.
8125 *) New function PKCS12_newpass() which changes the password of a
8129 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8130 dynamic mix. In both cases the ids can be used as an index into the
8131 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8132 functions so they accept a list of the field values and the
8133 application doesn't need to directly manipulate the X509_TRUST
8137 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8141 *) Modify the way the V3 extension code looks up extensions. This now
8142 works in a similar way to the object code: we have some "standard"
8143 extensions in a static table which is searched with OBJ_bsearch()
8144 and the application can add dynamic ones if needed. The file
8145 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8146 updated whenever a new extension is added to the core code and kept
8147 in ext_nid order. There is a simple program 'tabtest.c' which checks
8148 this. New extensions are not added too often so this file can readily
8149 be maintained manually.
8151 There are two big advantages in doing things this way. The extensions
8152 can be looked up immediately and no longer need to be "added" using
8153 X509V3_add_standard_extensions(): this function now does nothing.
8154 [Side note: I get *lots* of email saying the extension code doesn't
8155 work because people forget to call this function]
8156 Also no dynamic allocation is done unless new extensions are added:
8157 so if we don't add custom extensions there is no need to call
8158 X509V3_EXT_cleanup().
8161 *) Modify enc utility's salting as follows: make salting the default. Add a
8162 magic header, so unsalted files fail gracefully instead of just decrypting
8163 to garbage. This is because not salting is a big security hole, so people
8164 should be discouraged from doing it.
8167 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8168 digest to be passed on the command line but it only used this
8169 parameter when signing a certificate. Modified so all relevant
8170 operations are affected by the digest parameter including the
8171 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8172 DSA key was used because it didn't fix the digest.
8175 *) Initial certificate chain verify code. Currently tests the untrusted
8176 certificates for consistency with the verify purpose (which is set
8177 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8179 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8180 this is because it will reject chains with invalid extensions whereas
8181 every previous version of OpenSSL and SSLeay made no checks at all.
8183 Trust code: checks the root CA for the relevant trust settings. Trust
8184 settings have an initial value consistent with the verify purpose: e.g.
8185 if the verify purpose is for SSL client use it expects the CA to be
8186 trusted for SSL client use. However the default value can be changed to
8187 permit custom trust settings: one example of this would be to only trust
8188 certificates from a specific "secure" set of CAs.
8190 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8191 which should be used for version portability: especially since the
8192 verify structure is likely to change more often now.
8194 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8195 to set them. If not set then assume SSL clients will verify SSL servers
8198 Two new options to the verify program: -untrusted allows a set of
8199 untrusted certificates to be passed in and -purpose which sets the
8200 intended purpose of the certificate. If a purpose is set then the
8201 new chain verify code is used to check extension consistency.
8204 *) Support for the authority information access extension.
8207 *) Modify RSA and DSA PEM read routines to transparently handle
8208 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8209 public keys in a format compatible with certificate
8210 SubjectPublicKeyInfo structures. Unfortunately there were already
8211 functions called *_PublicKey_* which used various odd formats so
8212 these are retained for compatibility: however the DSA variants were
8213 never in a public release so they have been deleted. Changed dsa/rsa
8214 utilities to handle the new format: note no releases ever handled public
8215 keys so we should be OK.
8217 The primary motivation for this change is to avoid the same fiasco
8218 that dogs private keys: there are several incompatible private key
8219 formats some of which are standard and some OpenSSL specific and
8220 require various evil hacks to allow partial transparent handling and
8221 even then it doesn't work with DER formats. Given the option anything
8222 other than PKCS#8 should be dumped: but the other formats have to
8223 stay in the name of compatibility.
8225 With public keys and the benefit of hindsight one standard format
8226 is used which works with EVP_PKEY, RSA or DSA structures: though
8227 it clearly returns an error if you try to read the wrong kind of key.
8229 Added a -pubkey option to the 'x509' utility to output the public key.
8230 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8231 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8232 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8233 that do the same as the EVP_PKEY_assign_*() except they up the
8234 reference count of the added key (they don't "swallow" the
8238 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8239 CRLs would fail if the file contained no certificates or no CRLs:
8240 added a new function to read in both types and return the number
8241 read: this means that if none are read it will be an error. The
8242 DER versions of the certificate and CRL reader would always fail
8243 because it isn't possible to mix certificates and CRLs in DER format
8244 without choking one or the other routine. Changed this to just read
8245 a certificate: this is the best we can do. Also modified the code
8246 in apps/verify.c to take notice of return codes: it was previously
8247 attempting to read in certificates from NULL pointers and ignoring
8248 any errors: this is one reason why the cert and CRL reader seemed
8249 to work. It doesn't check return codes from the default certificate
8250 routines: these may well fail if the certificates aren't installed.
8253 *) Code to support otherName option in GeneralName.
8256 *) First update to verify code. Change the verify utility
8257 so it warns if it is passed a self signed certificate:
8258 for consistency with the normal behaviour. X509_verify
8259 has been modified to it will now verify a self signed
8260 certificate if *exactly* the same certificate appears
8261 in the store: it was previously impossible to trust a
8262 single self signed certificate. This means that:
8263 openssl verify ss.pem
8264 now gives a warning about a self signed certificate but
8265 openssl verify -CAfile ss.pem ss.pem
8269 *) For servers, store verify_result in SSL_SESSION data structure
8270 (and add it to external session representation).
8271 This is needed when client certificate verifications fails,
8272 but an application-provided verification callback (set by
8273 SSL_CTX_set_cert_verify_callback) allows accepting the session
8274 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8275 but returns 1): When the session is reused, we have to set
8276 ssl->verify_result to the appropriate error code to avoid
8278 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8280 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8281 case in PKCS7_dataInit() where the signed PKCS7 structure
8282 didn't contain any existing data because it was being created.
8283 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8285 *) Add a salt to the key derivation routines in enc.c. This
8286 forms the first 8 bytes of the encrypted file. Also add a
8287 -S option to allow a salt to be input on the command line.
8290 *) New function X509_cmp(). Oddly enough there wasn't a function
8291 to compare two certificates. We do this by working out the SHA1
8292 hash and comparing that. X509_cmp() will be needed by the trust
8296 *) SSL_get1_session() is like SSL_get_session(), but increments
8297 the reference count in the SSL_SESSION returned.
8298 [Geoff Thorpe <geoff@eu.c2.net>]
8300 *) Fix for 'req': it was adding a null to request attributes.
8301 Also change the X509_LOOKUP and X509_INFO code to handle
8302 certificate auxiliary information.
8305 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8309 *) Add the possibility to add extra information to the memory leak
8310 detecting output, to form tracebacks, showing from where each
8311 allocation was originated: CRYPTO_push_info("constant string") adds
8312 the string plus current file name and line number to a per-thread
8313 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8314 is like calling CYRPTO_pop_info() until the stack is empty.
8315 Also updated memory leak detection code to be multi-thread-safe.
8318 *) Add options -text and -noout to pkcs7 utility and delete the
8319 encryption options which never did anything. Update docs.
8322 *) Add options to some of the utilities to allow the pass phrase
8323 to be included on either the command line (not recommended on
8324 OSes like Unix) or read from the environment. Update the
8325 manpages and fix a few bugs.
8328 *) Add a few manpages for some of the openssl commands.
8331 *) Fix the -revoke option in ca. It was freeing up memory twice,
8332 leaking and not finding already revoked certificates.
8335 *) Extensive changes to support certificate auxiliary information.
8336 This involves the use of X509_CERT_AUX structure and X509_AUX
8337 functions. An X509_AUX function such as PEM_read_X509_AUX()
8338 can still read in a certificate file in the usual way but it
8339 will also read in any additional "auxiliary information". By
8340 doing things this way a fair degree of compatibility can be
8341 retained: existing certificates can have this information added
8342 using the new 'x509' options.
8344 Current auxiliary information includes an "alias" and some trust
8345 settings. The trust settings will ultimately be used in enhanced
8346 certificate chain verification routines: currently a certificate
8347 can only be trusted if it is self signed and then it is trusted
8351 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8352 The problem was that one of the replacement routines had not been working
8353 since SSLeay releases. For now the offending routine has been replaced
8354 with non-optimised assembler. Even so, this now gives around 95%
8355 performance improvement for 1024 bit RSA signs.
8358 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8359 handling. Most clients have the effective key size in bits equal to
8360 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8361 A few however don't do this and instead use the size of the decrypted key
8362 to determine the RC2 key length and the AlgorithmIdentifier to determine
8363 the effective key length. In this case the effective key length can still
8364 be 40 bits but the key length can be 168 bits for example. This is fixed
8365 by manually forcing an RC2 key into the EVP_PKEY structure because the
8366 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8367 the key length and effective key length are equal.
8370 *) Add a bunch of functions that should simplify the creation of
8371 X509_NAME structures. Now you should be able to do:
8372 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8373 and have it automatically work out the correct field type and fill in
8374 the structures. The more adventurous can try:
8375 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8376 and it will (hopefully) work out the correct multibyte encoding.
8379 *) Change the 'req' utility to use the new field handling and multibyte
8380 copy routines. Before the DN field creation was handled in an ad hoc
8381 way in req, ca, and x509 which was rather broken and didn't support
8382 BMPStrings or UTF8Strings. Since some software doesn't implement
8383 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8384 using the dirstring_type option. See the new comment in the default
8385 openssl.cnf for more info.
8388 *) Make crypto/rand/md_rand.c more robust:
8389 - Assure unique random numbers after fork().
8390 - Make sure that concurrent threads access the global counter and
8391 md serializably so that we never lose entropy in them
8392 or use exactly the same state in multiple threads.
8393 Access to the large state is not always serializable because
8394 the additional locking could be a performance killer, and
8395 md should be large enough anyway.
8398 *) New file apps/app_rand.c with commonly needed functionality
8399 for handling the random seed file.
8401 Use the random seed file in some applications that previously did not:
8403 dsaparam -genkey (which also ignored its '-rand' option),
8406 x509 (when signing).
8407 Except on systems with /dev/urandom, it is crucial to have a random
8408 seed file at least for key creation, DSA signing, and for DH exchanges;
8409 for RSA signatures we could do without one.
8411 gendh and gendsa (unlike genrsa) used to read only the first byte
8412 of each file listed in the '-rand' option. The function as previously
8413 found in genrsa is now in app_rand.c and is used by all programs
8414 that support '-rand'.
8417 *) In RAND_write_file, use mode 0600 for creating files;
8418 don't just chmod when it may be too late.
8421 *) Report an error from X509_STORE_load_locations
8422 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8425 *) New function ASN1_mbstring_copy() this copies a string in either
8426 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8427 into an ASN1_STRING type. A mask of permissible types is passed
8428 and it chooses the "minimal" type to use or an error if not type
8432 *) Add function equivalents to the various macros in asn1.h. The old
8433 macros are retained with an M_ prefix. Code inside the library can
8434 use the M_ macros. External code (including the openssl utility)
8435 should *NOT* in order to be "shared library friendly".
8438 *) Add various functions that can check a certificate's extensions
8439 to see if it usable for various purposes such as SSL client,
8440 server or S/MIME and CAs of these types. This is currently
8441 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8442 verification. Also added a -purpose flag to x509 utility to
8443 print out all the purposes.
8446 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8450 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8451 for, obtain and decode and extension and obtain its critical flag.
8452 This allows all the necessary extension code to be handled in a
8453 single function call.
8456 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8457 platforms. See crypto/rc4/rc4_enc.c for further details.
8460 *) New -noout option to asn1parse. This causes no output to be produced
8461 its main use is when combined with -strparse and -out to extract data
8462 from a file (which may not be in ASN.1 format).
8465 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8466 when producing the local key id.
8467 [Richard Levitte <levitte@stacken.kth.se>]
8469 *) New option -dhparam in s_server. This allows a DH parameter file to be
8470 stated explicitly. If it is not stated then it tries the first server
8471 certificate file. The previous behaviour hard coded the filename
8475 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8476 a public key to be input or output. For example:
8477 openssl rsa -in key.pem -pubout -out pubkey.pem
8478 Also added necessary DSA public key functions to handle this.
8481 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8482 in the message. This was handled by allowing
8483 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8484 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8486 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8487 to the end of the strings whereas this didn't. This would cause problems
8488 if strings read with d2i_ASN1_bytes() were later modified.
8489 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8491 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8492 data and it contains EOF it will end up returning an error. This is
8493 caused by input 46 bytes long. The cause is due to the way base64
8494 BIOs find the start of base64 encoded data. They do this by trying a
8495 trial decode on each line until they find one that works. When they
8496 do a flag is set and it starts again knowing it can pass all the
8497 data directly through the decoder. Unfortunately it doesn't reset
8498 the context it uses. This means that if EOF is reached an attempt
8499 is made to pass two EOFs through the context and this causes the
8500 resulting error. This can also cause other problems as well. As is
8501 usual with these problems it takes *ages* to find and the fix is
8502 trivial: move one line.
8503 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8505 *) Ugly workaround to get s_client and s_server working under Windows. The
8506 old code wouldn't work because it needed to select() on sockets and the
8507 tty (for keypresses and to see if data could be written). Win32 only
8508 supports select() on sockets so we select() with a 1s timeout on the
8509 sockets and then see if any characters are waiting to be read, if none
8510 are present then we retry, we also assume we can always write data to
8511 the tty. This isn't nice because the code then blocks until we've
8512 received a complete line of data and it is effectively polling the
8513 keyboard at 1s intervals: however it's quite a bit better than not
8514 working at all :-) A dedicated Windows application might handle this
8515 with an event loop for example.
8518 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8519 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8520 will be called when RSA_sign() and RSA_verify() are used. This is useful
8521 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8522 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8523 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8524 This necessitated the support of an extra signature type NID_md5_sha1
8525 for SSL signatures and modifications to the SSL library to use it instead
8526 of calling RSA_public_decrypt() and RSA_private_encrypt().
8529 *) Add new -verify -CAfile and -CApath options to the crl program, these
8530 will lookup a CRL issuers certificate and verify the signature in a
8531 similar way to the verify program. Tidy up the crl program so it
8532 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8533 less strict. It will now permit CRL extensions even if it is not
8534 a V2 CRL: this will allow it to tolerate some broken CRLs.
8537 *) Initialize all non-automatic variables each time one of the openssl
8538 sub-programs is started (this is necessary as they may be started
8539 multiple times from the "OpenSSL>" prompt).
8540 [Lennart Bang, Bodo Moeller]
8542 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8543 removing all other RSA functionality (this is what NO_RSA does). This
8544 is so (for example) those in the US can disable those operations covered
8545 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8549 *) Non-copying interface to BIO pairs.
8550 (still largely untested)
8553 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8554 ASCII string. This was handled independently in various places before.
8557 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8558 UTF8 strings a character at a time.
8561 *) Use client_version from client hello to select the protocol
8562 (s23_srvr.c) and for RSA client key exchange verification
8563 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8566 *) Add various utility functions to handle SPKACs, these were previously
8567 handled by poking round in the structure internals. Added new function
8568 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8569 print, verify and generate SPKACs. Based on an original idea from
8570 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8573 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8576 *) Allow the config file extension section to be overwritten on the
8577 command line. Based on an original idea from Massimiliano Pala
8578 <madwolf@comune.modena.it>. The new option is called -extensions
8579 and can be applied to ca, req and x509. Also -reqexts to override
8580 the request extensions in req and -crlexts to override the crl extensions
8584 *) Add new feature to the SPKAC handling in ca. Now you can include
8585 the same field multiple times by preceding it by "XXXX." for example:
8588 this is the same syntax as used in the req config file.
8591 *) Allow certificate extensions to be added to certificate requests. These
8592 are specified in a 'req_extensions' option of the req section of the
8593 config file. They can be printed out with the -text option to req but
8594 are otherwise ignored at present.
8597 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8598 data read consists of only the final block it would not decrypted because
8599 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8600 A misplaced 'break' also meant the decrypted final block might not be
8601 copied until the next read.
8604 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8605 a few extra parameters to the DH structure: these will be useful if
8606 for example we want the value of 'q' or implement X9.42 DH.
8609 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8610 provides hooks that allow the default DSA functions or functions on a
8611 "per key" basis to be replaced. This allows hardware acceleration and
8612 hardware key storage to be handled without major modification to the
8613 library. Also added low level modexp hooks and CRYPTO_EX structure and
8614 associated functions.
8617 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8618 as "read only": it can't be written to and the buffer it points to will
8619 not be freed. Reading from a read only BIO is much more efficient than
8620 a normal memory BIO. This was added because there are several times when
8621 an area of memory needs to be read from a BIO. The previous method was
8622 to create a memory BIO and write the data to it, this results in two
8623 copies of the data and an O(n^2) reading algorithm. There is a new
8624 function BIO_new_mem_buf() which creates a read only memory BIO from
8625 an area of memory. Also modified the PKCS#7 routines to use read only
8629 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8630 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8631 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8632 but a retry condition occured while trying to read the rest.
8635 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8636 NID_pkcs7_encrypted by default: this was wrong since this should almost
8637 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8638 the encrypted data type: this is a more sensible place to put it and it
8639 allows the PKCS#12 code to be tidied up that duplicated this
8643 *) Changed obj_dat.pl script so it takes its input and output files on
8644 the command line. This should avoid shell escape redirection problems
8648 *) Initial support for certificate extension requests, these are included
8649 in things like Xenroll certificate requests. Included functions to allow
8650 extensions to be obtained and added.
8653 *) -crlf option to s_client and s_server for sending newlines as
8654 CRLF (as required by many protocols).
8657 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8659 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8660 [Ralf S. Engelschall]
8662 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8663 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8665 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8669 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8670 DH parameters/keys (q is lost during that conversion, but the resulting
8671 DH parameters contain its length).
8673 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8674 much faster than DH_generate_parameters (which creates parameters
8675 where p = 2*q + 1), and also the smaller q makes DH computations
8676 much more efficient (160-bit exponentiation instead of 1024-bit
8677 exponentiation); so this provides a convenient way to support DHE
8678 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8679 utter importance to use
8680 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8682 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8683 when such DH parameters are used, because otherwise small subgroup
8684 attacks may become possible!
8687 *) Avoid memory leak in i2d_DHparams.
8690 *) Allow the -k option to be used more than once in the enc program:
8691 this allows the same encrypted message to be read by multiple recipients.
8694 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8695 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8696 it will always use the numerical form of the OID, even if it has a short
8700 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8701 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8702 otherwise bn_mod_exp was called. In the case of hardware keys for example
8703 no private key components need be present and it might store extra data
8704 in the RSA structure, which cannot be accessed from bn_mod_exp.
8705 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8706 private key operations.
8709 *) Added support for SPARC Linux.
8712 *) pem_password_cb function type incompatibly changed from
8713 typedef int pem_password_cb(char *buf, int size, int rwflag);
8715 ....(char *buf, int size, int rwflag, void *userdata);
8716 so that applications can pass data to their callbacks:
8717 The PEM[_ASN1]_{read,write}... functions and macros now take an
8718 additional void * argument, which is just handed through whenever
8719 the password callback is called.
8720 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8722 New function SSL_CTX_set_default_passwd_cb_userdata.
8724 Compatibility note: As many C implementations push function arguments
8725 onto the stack in reverse order, the new library version is likely to
8726 interoperate with programs that have been compiled with the old
8727 pem_password_cb definition (PEM_whatever takes some data that
8728 happens to be on the stack as its last argument, and the callback
8729 just ignores this garbage); but there is no guarantee whatsoever that
8732 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8733 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8734 problems not only on Windows, but also on some Unix platforms.
8735 To avoid problematic command lines, these definitions are now in an
8736 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8737 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8740 *) MIPS III/IV assembler module is reimplemented.
8743 *) More DES library cleanups: remove references to srand/rand and
8744 delete an unused file.
8747 *) Add support for the the free Netwide assembler (NASM) under Win32,
8748 since not many people have MASM (ml) and it can be hard to obtain.
8749 This is currently experimental but it seems to work OK and pass all
8750 the tests. Check out INSTALL.W32 for info.
8753 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8754 without temporary keys kept an extra copy of the server key,
8755 and connections with temporary keys did not free everything in case
8759 *) New function RSA_check_key and new openssl rsa option -check
8760 for verifying the consistency of RSA keys.
8761 [Ulf Moeller, Bodo Moeller]
8763 *) Various changes to make Win32 compile work:
8764 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8765 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8766 comparison" warnings.
8767 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8770 *) Add a debugging option to PKCS#5 v2 key generation function: when
8771 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8772 derived keys are printed to stderr.
8775 *) Copy the flags in ASN1_STRING_dup().
8776 [Roman E. Pavlov <pre@mo.msk.ru>]
8778 *) The x509 application mishandled signing requests containing DSA
8779 keys when the signing key was also DSA and the parameters didn't match.
8781 It was supposed to omit the parameters when they matched the signing key:
8782 the verifying software was then supposed to automatically use the CA's
8783 parameters if they were absent from the end user certificate.
8785 Omitting parameters is no longer recommended. The test was also
8786 the wrong way round! This was probably due to unusual behaviour in
8787 EVP_cmp_parameters() which returns 1 if the parameters match.
8788 This meant that parameters were omitted when they *didn't* match and
8789 the certificate was useless. Certificates signed with 'ca' didn't have
8791 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8793 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8794 The interface is as follows:
8795 Applications can use
8796 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8797 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8798 "off" is now the default.
8799 The library internally uses
8800 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8801 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8802 to disable memory-checking temporarily.
8804 Some inconsistent states that previously were possible (and were
8805 even the default) are now avoided.
8807 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8808 with each memory chunk allocated; this is occasionally more helpful
8809 than just having a counter.
8811 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8813 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8817 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8818 which largely parallels "options", but is for changing API behaviour,
8819 whereas "options" are about protocol behaviour.
8820 Initial "mode" flags are:
8822 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8823 a single record has been written.
8824 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8825 retries use the same buffer location.
8826 (But all of the contents must be
8830 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8833 *) Fix problems with no-hmac etc.
8834 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8836 *) New functions RSA_get_default_method(), RSA_set_method() and
8837 RSA_get_method(). These allows replacement of RSA_METHODs without having
8838 to mess around with the internals of an RSA structure.
8841 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8842 Also really enable memory leak checks in openssl.c and in some
8844 [Chad C. Mulligan, Bodo Moeller]
8846 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8847 up the length of negative integers. This has now been simplified to just
8848 store the length when it is first determined and use it later, rather
8849 than trying to keep track of where data is copied and updating it to
8851 [Steve Henson, reported by Brien Wheeler
8852 <bwheeler@authentica-security.com>]
8854 *) Add a new function PKCS7_signatureVerify. This allows the verification
8855 of a PKCS#7 signature but with the signing certificate passed to the
8856 function itself. This contrasts with PKCS7_dataVerify which assumes the
8857 certificate is present in the PKCS#7 structure. This isn't always the
8858 case: certificates can be omitted from a PKCS#7 structure and be
8859 distributed by "out of band" means (such as a certificate database).
8862 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8863 function prototypes in pem.h, also change util/mkdef.pl to add the
8864 necessary function names.
8867 *) mk1mf.pl (used by Windows builds) did not properly read the
8868 options set by Configure in the top level Makefile, and Configure
8869 was not even able to write more than one option correctly.
8870 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8873 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8874 file to be loaded from a BIO or FILE pointer. The BIO version will
8875 for example allow memory BIOs to contain config info.
8878 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8879 Whoever hopes to achieve shared-library compatibility across versions
8880 must use this, not the compile-time macro.
8881 (Exercise 0.9.4: Which is the minimum library version required by
8883 Note: All this applies only to multi-threaded programs, others don't
8887 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8888 through a BIO pair triggered the default case, i.e.
8889 SSLerr(...,SSL_R_UNKNOWN_STATE).
8892 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8893 can use the SSL library even if none of the specific BIOs is
8897 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8898 for the encoded length.
8899 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8901 *) Add initial documentation of the X509V3 functions.
8904 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8905 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8906 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8907 secure PKCS#8 private key format with a high iteration count.
8910 *) Fix determination of Perl interpreter: A perl or perl5
8911 _directory_ in $PATH was also accepted as the interpreter.
8912 [Ralf S. Engelschall]
8914 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8915 wrong with it but it was very old and did things like calling
8916 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8920 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8921 to use the new extension code.
8924 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8925 with macros. This should make it easier to change their form, add extra
8926 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8930 *) Add to configuration table a new entry that can specify an alternative
8931 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8932 according to Mark Crispin <MRC@Panda.COM>.
8936 *) DES CBC did not update the IV. Weird.
8939 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8940 Changing the behaviour of the former might break existing programs --
8941 where IV updating is needed, des_ncbc_encrypt can be used.
8944 *) When bntest is run from "make test" it drives bc to check its
8945 calculations, as well as internally checking them. If an internal check
8946 fails, it needs to cause bc to give a non-zero result or make test carries
8947 on without noticing the failure. Fixed.
8950 *) DES library cleanups.
8953 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8954 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8955 ciphers. NOTE: although the key derivation function has been verified
8956 against some published test vectors it has not been extensively tested
8957 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8961 *) Instead of "mkdir -p", which is not fully portable, use new
8962 Perl script "util/mkdir-p.pl".
8965 *) Rewrite the way password based encryption (PBE) is handled. It used to
8966 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8967 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8968 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8969 the 'parameter' field of the AlgorithmIdentifier is passed to the
8970 underlying key generation function so it must do its own ASN1 parsing.
8971 This has also changed the EVP_PBE_CipherInit() function which now has a
8972 'parameter' argument instead of literal salt and iteration count values
8973 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8976 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8977 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8978 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8979 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8980 value was just used as a "magic string" and not used directly its
8981 value doesn't matter.
8984 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8988 *) "linux-sparc64" configuration (ultrapenguin).
8989 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8990 "linux-sparc" configuration.
8991 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8993 *) config now generates no-xxx options for missing ciphers.
8996 *) Support the EBCDIC character set (work in progress).
8997 File ebcdic.c not yet included because it has a different license.
8998 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9000 *) Support BS2000/OSD-POSIX.
9001 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9003 *) Make callbacks for key generation use void * instead of char *.
9006 *) Make S/MIME samples compile (not yet tested).
9009 *) Additional typesafe stacks.
9012 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
9016 Changes between 0.9.3 and 0.9.3a [29 May 1999]
9018 *) New configuration variant "sco5-gcc".
9020 *) Updated some demos.
9021 [Sean O Riordain, Wade Scholine]
9023 *) Add missing BIO_free at exit of pkcs12 application.
9026 *) Fix memory leak in conf.c.
9029 *) Updates for Win32 to assembler version of MD5.
9032 *) Set #! path to perl in apps/der_chop to where we found it
9033 instead of using a fixed path.
9036 *) SHA library changes for irix64-mips4-cc.
9039 *) Improvements for VMS support.
9043 Changes between 0.9.2b and 0.9.3 [24 May 1999]
9045 *) Bignum library bug fix. IRIX 6 passes "make test" now!
9046 This also avoids the problems with SC4.2 and unpatched SC5.
9047 [Andy Polyakov <appro@fy.chalmers.se>]
9049 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
9050 These are required because of the typesafe stack would otherwise break
9051 existing code. If old code used a structure member which used to be STACK
9052 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
9053 sk_num or sk_value it would produce an error because the num, data members
9054 are not present in STACK_OF. Now it just produces a warning. sk_set
9055 replaces the old method of assigning a value to sk_value
9056 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
9057 that does this will no longer work (and should use sk_set instead) but
9058 this could be regarded as a "questionable" behaviour anyway.
9061 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
9062 correctly handle encrypted S/MIME data.
9065 *) Change type of various DES function arguments from des_cblock
9066 (which means, in function argument declarations, pointer to char)
9067 to des_cblock * (meaning pointer to array with 8 char elements),
9068 which allows the compiler to do more typechecking; it was like
9069 that back in SSLeay, but with lots of ugly casts.
9071 Introduce new type const_des_cblock.
9074 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9075 problems: find RecipientInfo structure that matches recipient certificate
9076 and initialise the ASN1 structures properly based on passed cipher.
9079 *) Belatedly make the BN tests actually check the results.
9082 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9083 to and from BNs: it was completely broken. New compilation option
9084 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9085 key elements as negative integers.
9088 *) Reorganize and speed up MD5.
9089 [Andy Polyakov <appro@fy.chalmers.se>]
9092 [Richard Levitte <richard@levitte.org>]
9094 *) New option -out to asn1parse to allow the parsed structure to be
9095 output to a file. This is most useful when combined with the -strparse
9096 option to examine the output of things like OCTET STRINGS.
9099 *) Make SSL library a little more fool-proof by not requiring any longer
9100 that SSL_set_{accept,connect}_state be called before
9101 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9102 in many applications because usually everything *appeared* to work as
9103 intended anyway -- now it really works as intended).
9106 *) Move openssl.cnf out of lib/.
9109 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9110 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9111 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9112 [Ralf S. Engelschall]
9114 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9115 handle PKCS#7 enveloped data properly.
9116 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9118 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9119 copying pointers. The cert_st handling is changed by this in
9120 various ways (and thus what used to be known as ctx->default_cert
9121 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9122 any longer when s->cert does not give us what we need).
9123 ssl_cert_instantiate becomes obsolete by this change.
9124 As soon as we've got the new code right (possibly it already is?),
9125 we have solved a couple of bugs of the earlier code where s->cert
9126 was used as if it could not have been shared with other SSL structures.
9128 Note that using the SSL API in certain dirty ways now will result
9129 in different behaviour than observed with earlier library versions:
9130 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9131 does not influence s as it used to.
9133 In order to clean up things more thoroughly, inside SSL_SESSION
9134 we don't use CERT any longer, but a new structure SESS_CERT
9135 that holds per-session data (if available); currently, this is
9136 the peer's certificate chain and, for clients, the server's certificate
9137 and temporary key. CERT holds only those values that can have
9138 meaningful defaults in an SSL_CTX.
9141 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9142 from the internal representation. Various PKCS#7 fixes: remove some
9143 evil casts and set the enc_dig_alg field properly based on the signing
9147 *) Allow PKCS#12 password to be set from the command line or the
9148 environment. Let 'ca' get its config file name from the environment
9149 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9153 *) Allow certificate policies extension to use an IA5STRING for the
9154 organization field. This is contrary to the PKIX definition but
9155 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9159 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9160 without disallowing inline assembler and the like for non-pedantic builds.
9163 *) Support Borland C++ builder.
9164 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9169 *) SHA-1 cleanups and performance enhancements.
9170 [Andy Polyakov <appro@fy.chalmers.se>]
9172 *) Sparc v8plus assembler for the bignum library.
9173 [Andy Polyakov <appro@fy.chalmers.se>]
9175 *) Accept any -xxx and +xxx compiler options in Configure.
9178 *) Update HPUX configuration.
9181 *) Add missing sk_<type>_unshift() function to safestack.h
9182 [Ralf S. Engelschall]
9184 *) New function SSL_CTX_use_certificate_chain_file that sets the
9185 "extra_cert"s in addition to the certificate. (This makes sense
9186 only for "PEM" format files, as chains as a whole are not
9190 *) Support verify_depth from the SSL API.
9191 x509_vfy.c had what can be considered an off-by-one-error:
9192 Its depth (which was not part of the external interface)
9193 was actually counting the number of certificates in a chain;
9194 now it really counts the depth.
9197 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9198 instead of X509err, which often resulted in confusing error
9199 messages since the error codes are not globally unique
9200 (e.g. an alleged error in ssl3_accept when a certificate
9201 didn't match the private key).
9203 *) New function SSL_CTX_set_session_id_context that allows to set a default
9204 value (so that you don't need SSL_set_session_id_context for each
9205 connection using the SSL_CTX).
9208 *) OAEP decoding bug fix.
9211 *) Support INSTALL_PREFIX for package builders, as proposed by
9215 *) New Configure options "threads" and "no-threads". For systems
9216 where the proper compiler options are known (currently Solaris
9217 and Linux), "threads" is the default.
9220 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9223 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9224 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9225 such as /usr/local/bin.
9228 *) "make linux-shared" to build shared libraries.
9229 [Niels Poppe <niels@netbox.org>]
9231 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9234 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9235 extension adding in x509 utility.
9238 *) Remove NOPROTO sections and error code comments.
9241 *) Partial rewrite of the DEF file generator to now parse the ANSI
9245 *) New Configure options --prefix=DIR and --openssldir=DIR.
9248 *) Complete rewrite of the error code script(s). It is all now handled
9249 by one script at the top level which handles error code gathering,
9250 header rewriting and C source file generation. It should be much better
9251 than the old method: it now uses a modified version of Ulf's parser to
9252 read the ANSI prototypes in all header files (thus the old K&R definitions
9253 aren't needed for error creation any more) and do a better job of
9254 translating function codes into names. The old 'ASN1 error code imbedded
9255 in a comment' is no longer necessary and it doesn't use .err files which
9256 have now been deleted. Also the error code call doesn't have to appear all
9257 on one line (which resulted in some large lines...).
9260 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9263 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9264 0 (which usually indicates a closed connection), but continue reading.
9267 *) Fix some race conditions.
9270 *) Add support for CRL distribution points extension. Add Certificate
9271 Policies and CRL distribution points documentation.
9274 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9277 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9278 8 of keying material. Merlin has also confirmed interop with this fix
9279 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9280 [Merlin Hughes <merlin@baltimore.ie>]
9282 *) Fix lots of warnings.
9283 [Richard Levitte <levitte@stacken.kth.se>]
9285 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9286 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9287 [Richard Levitte <levitte@stacken.kth.se>]
9289 *) Fix problems with sizeof(long) == 8.
9290 [Andy Polyakov <appro@fy.chalmers.se>]
9292 *) Change functions to ANSI C.
9295 *) Fix typos in error codes.
9296 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9298 *) Remove defunct assembler files from Configure.
9301 *) SPARC v8 assembler BIGNUM implementation.
9302 [Andy Polyakov <appro@fy.chalmers.se>]
9304 *) Support for Certificate Policies extension: both print and set.
9305 Various additions to support the r2i method this uses.
9308 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9309 return a const string when you are expecting an allocated buffer.
9312 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9313 types DirectoryString and DisplayText.
9316 *) Add code to allow r2i extensions to access the configuration database,
9317 add an LHASH database driver and add several ctx helper functions.
9320 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9321 fail when they extended the size of a BIGNUM.
9324 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9325 support typesafe stack.
9328 *) Fix typo in SSL_[gs]et_options().
9329 [Nils Frostberg <nils@medcom.se>]
9331 *) Delete various functions and files that belonged to the (now obsolete)
9332 old X509V3 handling code.
9335 *) New Configure option "rsaref".
9338 *) Don't auto-generate pem.h.
9341 *) Introduce type-safe ASN.1 SETs.
9344 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9345 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9347 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9348 that links with OpenSSL (well at least cause lots of warnings), but fear
9349 not: the conversion is trivial, and it eliminates loads of evil casts. A
9350 few STACKed things have been converted already. Feel free to convert more.
9351 In the fullness of time, I'll do away with the STACK type altogether.
9354 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9355 specified in <certfile> by updating the entry in the index.txt file.
9356 This way one no longer has to edit the index.txt file manually for
9357 revoking a certificate. The -revoke option does the gory details now.
9358 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9360 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9361 `-text' option at all and this way the `-noout -text' combination was
9362 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9363 [Ralf S. Engelschall]
9365 *) Make sure a corresponding plain text error message exists for the
9366 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9367 verify callback function determined that a certificate was revoked.
9368 [Ralf S. Engelschall]
9370 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9371 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9372 all available cipers including rc5, which was forgotten until now.
9373 In order to let the testing shell script know which algorithms
9374 are available, a new (up to now undocumented) command
9375 "openssl list-cipher-commands" is used.
9378 *) Bugfix: s_client occasionally would sleep in select() when
9379 it should have checked SSL_pending() first.
9382 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9383 the raw DSA values prior to ASN.1 encoding.
9386 *) Tweaks to Configure
9387 [Niels Poppe <niels@netbox.org>]
9389 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9393 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9396 *) New config option to avoid instructions that are illegal on the 80386.
9397 The default code is faster, but requires at least a 486.
9400 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9401 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9402 same as SSL2_VERSION anyway.
9405 *) New "-showcerts" option for s_client.
9408 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9409 application. Various cleanups and fixes.
9412 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9413 modify error routines to work internally. Add error codes and PBE init
9414 to library startup routines.
9417 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9418 packing functions to asn1 and evp. Changed function names and error
9419 codes along the way.
9422 *) PKCS12 integration: and so it begins... First of several patches to
9423 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9424 objects to objects.h
9427 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9428 and display support for Thawte strong extranet extension.
9431 *) Add LinuxPPC support.
9432 [Jeff Dubrule <igor@pobox.org>]
9434 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9435 bn_div_words in alpha.s.
9436 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9438 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9439 OAEP isn't supported when OpenSSL is built with RSAref.
9440 [Ulf Moeller <ulf@fitug.de>]
9442 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9443 so they no longer are missing under -DNOPROTO.
9444 [Soren S. Jorvang <soren@t.dk>]
9447 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9449 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9450 doesn't work when the session is reused. Coming soon!
9453 *) Fix a security hole, that allows sessions to be reused in the wrong
9454 context thus bypassing client cert protection! All software that uses
9455 client certs and session caches in multiple contexts NEEDS PATCHING to
9456 allow session reuse! A fuller solution is in the works.
9457 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9459 *) Some more source tree cleanups (removed obsolete files
9460 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9461 permission on "config" script to be executable) and a fix for the INSTALL
9463 [Ulf Moeller <ulf@fitug.de>]
9465 *) Remove some legacy and erroneous uses of malloc, free instead of
9467 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9469 *) Make rsa_oaep_test return non-zero on error.
9470 [Ulf Moeller <ulf@fitug.de>]
9472 *) Add support for native Solaris shared libraries. Configure
9473 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9474 if someone would make that last step automatic.
9475 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9477 *) ctx_size was not built with the right compiler during "make links". Fixed.
9480 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9481 except NULL ciphers". This means the default cipher list will no longer
9482 enable NULL ciphers. They need to be specifically enabled e.g. with
9483 the string "DEFAULT:eNULL".
9486 *) Fix to RSA private encryption routines: if p < q then it would
9487 occasionally produce an invalid result. This will only happen with
9488 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9491 *) Be less restrictive and allow also `perl util/perlpath.pl
9492 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9493 because this way one can also use an interpreter named `perl5' (which is
9494 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9495 installed as `perl').
9496 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9498 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9499 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9501 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9502 advapi32.lib to Win32 build and change the pem test comparision
9503 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9504 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9505 and crypto/des/ede_cbcm_enc.c.
9508 *) DES quad checksum was broken on big-endian architectures. Fixed.
9511 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9512 Win32 test batch file so it (might) work again. The Win32 test batch file
9513 is horrible: I feel ill....
9516 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9517 in e_os.h. Audit of header files to check ANSI and non ANSI
9518 sections: 10 functions were absent from non ANSI section and not exported
9519 from Windows DLLs. Fixed up libeay.num for new functions.
9522 *) Make `openssl version' output lines consistent.
9523 [Ralf S. Engelschall]
9525 *) Fix Win32 symbol export lists for BIO functions: Added
9526 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9527 to ms/libeay{16,32}.def.
9528 [Ralf S. Engelschall]
9530 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9531 fine under Unix and passes some trivial tests I've now added. But the
9532 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9533 added to make sure no one expects that this stuff really works in the
9534 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9535 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9537 [Ralf S. Engelschall]
9539 *) Fix the generation of two part addresses in perl.
9540 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9542 *) Add config entry for Linux on MIPS.
9543 [John Tobey <jtobey@channel1.com>]
9545 *) Make links whenever Configure is run, unless we are on Windoze.
9548 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9549 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9553 *) Add a useful kludge to allow package maintainers to specify compiler and
9554 other platforms details on the command line without having to patch the
9555 Configure script everytime: One now can use ``perl Configure
9556 <id>:<details>'', i.e. platform ids are allowed to have details appended
9557 to them (seperated by colons). This is treated as there would be a static
9558 pre-configured entry in Configure's %table under key <id> with value
9559 <details> and ``perl Configure <id>'' is called. So, when you want to
9560 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9561 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9562 now, which overrides the FreeBSD-elf entry on-the-fly.
9563 [Ralf S. Engelschall]
9565 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9568 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9569 on the `perl Configure ...' command line. This way one can compile
9570 OpenSSL libraries with Position Independent Code (PIC) which is needed
9571 for linking it into DSOs.
9572 [Ralf S. Engelschall]
9574 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9578 *) Cleaned up the LICENSE document: The official contact for any license
9579 questions now is the OpenSSL core team under openssl-core@openssl.org.
9580 And add a paragraph about the dual-license situation to make sure people
9581 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9582 to the OpenSSL toolkit.
9583 [Ralf S. Engelschall]
9585 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9586 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9587 Additonally cleaned up the `make links' target: Remove unnecessary
9588 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9589 to speed processing and no longer clutter the display with confusing
9590 stuff. Instead only the actually done links are displayed.
9591 [Ralf S. Engelschall]
9593 *) Permit null encryption ciphersuites, used for authentication only. It used
9594 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9595 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9599 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9600 signed attributes when verifying signatures (this would break them),
9601 the detached data encoding was wrong and public keys obtained using
9602 X509_get_pubkey() weren't freed.
9605 *) Add text documentation for the BUFFER functions. Also added a work around
9606 to a Win95 console bug. This was triggered by the password read stuff: the
9607 last character typed gets carried over to the next fread(). If you were
9608 generating a new cert request using 'req' for example then the last
9609 character of the passphrase would be CR which would then enter the first
9613 *) Added the new `Includes OpenSSL Cryptography Software' button as
9614 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9615 button and can be used by applications based on OpenSSL to show the
9616 relationship to the OpenSSL project.
9617 [Ralf S. Engelschall]
9619 *) Remove confusing variables in function signatures in files
9620 ssl/ssl_lib.c and ssl/ssl.h.
9621 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9623 *) Don't install bss_file.c under PREFIX/include/
9624 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9626 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9627 functions that return function pointers and has support for NT specific
9628 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9629 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9630 unsigned to signed types: this was killing the Win32 compile.
9633 *) Add new certificate file to stack functions,
9634 SSL_add_dir_cert_subjects_to_stack() and
9635 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9636 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9637 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9638 This means that Apache-SSL and similar packages don't have to mess around
9639 to add as many CAs as they want to the preferred list.
9642 *) Experiment with doxygen documentation. Currently only partially applied to
9644 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9645 openssl.doxy as the configuration file.
9648 *) Get rid of remaining C++-style comments which strict C compilers hate.
9649 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9651 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9652 compiled in by default: it has problems with large keys.
9655 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9656 DH private keys and/or callback functions which directly correspond to
9657 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9658 is needed for applications which have to configure certificates on a
9659 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9661 For the RSA certificate situation is makes no difference, but
9662 for the DSA certificate situation this fixes the "no shared cipher"
9663 problem where the OpenSSL cipher selection procedure failed because the
9664 temporary keys were not overtaken from the context and the API provided
9665 no way to reconfigure them.
9666 The new functions now let applications reconfigure the stuff and they
9667 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9668 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9669 non-public-API function ssl_cert_instantiate() is used as a helper
9670 function and also to reduce code redundancy inside ssl_rsa.c.
9671 [Ralf S. Engelschall]
9673 *) Move s_server -dcert and -dkey options out of the undocumented feature
9674 area because they are useful for the DSA situation and should be
9675 recognized by the users.
9676 [Ralf S. Engelschall]
9678 *) Fix the cipher decision scheme for export ciphers: the export bits are
9679 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9680 SSL_EXP_MASK. So, the original variable has to be used instead of the
9681 already masked variable.
9682 [Richard Levitte <levitte@stacken.kth.se>]
9684 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9685 [Richard Levitte <levitte@stacken.kth.se>]
9687 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9688 from `int' to `unsigned int' because it's a length and initialized by
9689 EVP_DigestFinal() which expects an `unsigned int *'.
9690 [Richard Levitte <levitte@stacken.kth.se>]
9692 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9693 script. Instead use the usual Shell->Perl transition trick.
9694 [Ralf S. Engelschall]
9696 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9697 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9698 -noout -modulus' as it's already the case for `openssl rsa -noout
9699 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9700 currently the public key is printed (a decision which was already done by
9701 `openssl dsa -modulus' in the past) which serves a similar purpose.
9702 Additionally the NO_RSA no longer completely removes the whole -modulus
9703 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9705 [Ralf S. Engelschall]
9707 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9708 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9709 [Arne Ansper <arne@ats.cyber.ee>]
9711 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9712 to be added. Now both 'req' and 'ca' can use new objects defined in the
9716 *) Add cool BIO that does syslog (or event log on NT).
9717 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9719 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9720 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9721 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9722 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9725 *) Add preliminary config info for new extension code.
9728 *) Make RSA_NO_PADDING really use no padding.
9729 [Ulf Moeller <ulf@fitug.de>]
9731 *) Generate errors when private/public key check is done.
9734 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9735 for some CRL extensions and new objects added.
9738 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9739 key usage extension and fuller support for authority key id.
9742 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9743 padding method for RSA, which is recommended for new applications in PKCS
9744 #1 v2.0 (RFC 2437, October 1998).
9745 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9746 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9747 against Bleichbacher's attack on RSA.
9748 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9751 *) Updates to the new SSL compression code
9752 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9754 *) Fix so that the version number in the master secret, when passed
9755 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9756 (because the server will not accept higher), that the version number
9757 is 0x03,0x01, not 0x03,0x00
9758 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9760 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9761 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9762 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9765 *) Support for RAW extensions where an arbitrary extension can be
9766 created by including its DER encoding. See apps/openssl.cnf for
9770 *) Make sure latest Perl versions don't interpret some generated C array
9771 code as Perl array code in the crypto/err/err_genc.pl script.
9772 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9774 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9775 not many people have the assembler. Various Win32 compilation fixes and
9776 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9780 *) Modify configure script 'Configure' to automatically create crypto/date.h
9781 file under Win32 and also build pem.h from pem.org. New script
9782 util/mkfiles.pl to create the MINFO file on environments that can't do a
9783 'make files': perl util/mkfiles.pl >MINFO should work.
9786 *) Major rework of DES function declarations, in the pursuit of correctness
9787 and purity. As a result, many evil casts evaporated, and some weirdness,
9788 too. You may find this causes warnings in your code. Zapping your evil
9789 casts will probably fix them. Mostly.
9792 *) Fix for a typo in asn1.h. Bug fix to object creation script
9793 obj_dat.pl. It considered a zero in an object definition to mean
9794 "end of object": none of the objects in objects.h have any zeros
9795 so it wasn't spotted.
9796 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9798 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9799 Masking (CBCM). In the absence of test vectors, the best I have been able
9800 to do is check that the decrypt undoes the encrypt, so far. Send me test
9801 vectors if you have them.
9804 *) Correct calculation of key length for export ciphers (too much space was
9805 allocated for null ciphers). This has not been tested!
9808 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9809 message is now correct (it understands "crypto" and "ssl" on its
9810 command line). There is also now an "update" option. This will update
9811 the util/ssleay.num and util/libeay.num files with any new functions.
9813 perl util/mkdef.pl crypto ssl update
9814 it will update them.
9817 *) Overhauled the Perl interface (perl/*):
9818 - ported BN stuff to OpenSSL's different BN library
9819 - made the perl/ source tree CVS-aware
9820 - renamed the package from SSLeay to OpenSSL (the files still contain
9821 their history because I've copied them in the repository)
9822 - removed obsolete files (the test scripts will be replaced
9823 by better Test::Harness variants in the future)
9824 [Ralf S. Engelschall]
9826 *) First cut for a very conservative source tree cleanup:
9827 1. merge various obsolete readme texts into doc/ssleay.txt
9828 where we collect the old documents and readme texts.
9829 2. remove the first part of files where I'm already sure that we no
9830 longer need them because of three reasons: either they are just temporary
9831 files which were left by Eric or they are preserved original files where
9832 I've verified that the diff is also available in the CVS via "cvs diff
9833 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9834 the crypto/md/ stuff).
9835 [Ralf S. Engelschall]
9837 *) More extension code. Incomplete support for subject and issuer alt
9838 name, issuer and authority key id. Change the i2v function parameters
9839 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9840 what that's for :-) Fix to ASN1 macro which messed up
9841 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9844 *) Preliminary support for ENUMERATED type. This is largely copied from the
9848 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9849 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9851 *) Make sure `make rehash' target really finds the `openssl' program.
9852 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9854 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9855 like to hear about it if this slows down other processors.
9858 *) Add CygWin32 platform information to Configure script.
9859 [Alan Batie <batie@aahz.jf.intel.com>]
9861 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9862 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9864 *) New program nseq to manipulate netscape certificate sequences
9867 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9871 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9872 but the BN code had some problems that would cause failures when
9873 doing certificate verification and some other functions.
9874 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9876 *) Add ASN1 and PEM code to support netscape certificate sequences.
9879 *) Add ASN1 and PEM code to support netscape certificate sequences.
9882 *) Add several PKIX and private extended key usage OIDs.
9885 *) Modify the 'ca' program to handle the new extension code. Modify
9886 openssl.cnf for new extension format, add comments.
9889 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9890 and add a sample to openssl.cnf so req -x509 now adds appropriate
9894 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9895 error code, add initial support to X509_print() and x509 application.
9898 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9899 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9900 stuff is currently isolated and isn't even compiled yet.
9903 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9904 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9905 Removed the versions check from X509 routines when loading extensions:
9906 this allows certain broken certificates that don't set the version
9907 properly to be processed.
9910 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9911 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9912 can still be regenerated with "make depend".
9915 *) Spelling mistake in C version of CAST-128.
9916 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9918 *) Changes to the error generation code. The perl script err-code.pl
9919 now reads in the old error codes and retains the old numbers, only
9920 adding new ones if necessary. It also only changes the .err files if new
9921 codes are added. The makefiles have been modified to only insert errors
9922 when needed (to avoid needlessly modifying header files). This is done
9923 by only inserting errors if the .err file is newer than the auto generated
9924 C file. To rebuild all the error codes from scratch (the old behaviour)
9925 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9926 or delete all the .err files.
9929 *) CAST-128 was incorrectly implemented for short keys. The C version has
9930 been fixed, but is untested. The assembler versions are also fixed, but
9931 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9932 to regenerate it if needed.
9933 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9934 Hagino <itojun@kame.net>]
9936 *) File was opened incorrectly in randfile.c.
9937 [Ulf Möller <ulf@fitug.de>]
9939 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9940 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9941 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9942 al: it's just almost always a UTCTime. Note this patch adds new error
9943 codes so do a "make errors" if there are problems.
9946 *) Correct Linux 1 recognition in config.
9947 [Ulf Möller <ulf@fitug.de>]
9949 *) Remove pointless MD5 hash when using DSA keys in ca.
9950 [Anonymous <nobody@replay.com>]
9952 *) Generate an error if given an empty string as a cert directory. Also
9953 generate an error if handed NULL (previously returned 0 to indicate an
9954 error, but didn't set one).
9955 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9957 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9960 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9961 parameters. This was causing a warning which killed off the Win32 compile.
9964 *) Remove C++ style comments from crypto/bn/bn_local.h.
9965 [Neil Costigan <neil.costigan@celocom.com>]
9967 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9968 based on a text string, looking up short and long names and finally
9969 "dot" format. The "dot" format stuff didn't work. Added new function
9970 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9971 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9972 OID is not part of the table.
9975 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9976 X509_LOOKUP_by_alias().
9979 *) Sort openssl functions by name.
9982 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9983 encryption from sample DSA keys (in case anyone is interested the password
9987 *) Make _all_ *_free functions accept a NULL pointer.
9988 [Frans Heymans <fheymans@isaserver.be>]
9990 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9992 [Anonymous <nobody@replay.com>]
9994 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9995 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9997 *) Don't blow it for numeric -newkey arguments to apps/req.
9998 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10000 *) Temp key "for export" tests were wrong in s3_srvr.c.
10001 [Anonymous <nobody@replay.com>]
10003 *) Add prototype for temp key callback functions
10004 SSL_CTX_set_tmp_{rsa,dh}_callback().
10007 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
10008 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
10011 *) X509_name_add_entry() freed the wrong thing after an error.
10012 [Arne Ansper <arne@ats.cyber.ee>]
10014 *) rsa_eay.c would attempt to free a NULL context.
10015 [Arne Ansper <arne@ats.cyber.ee>]
10017 *) BIO_s_socket() had a broken should_retry() on Windoze.
10018 [Arne Ansper <arne@ats.cyber.ee>]
10020 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
10021 [Arne Ansper <arne@ats.cyber.ee>]
10023 *) Make sure the already existing X509_STORE->depth variable is initialized
10024 in X509_STORE_new(), but document the fact that this variable is still
10025 unused in the certificate verification process.
10026 [Ralf S. Engelschall]
10028 *) Fix the various library and apps files to free up pkeys obtained from
10029 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
10032 *) Fix reference counting in X509_PUBKEY_get(). This makes
10033 demos/maurice/example2.c work, amongst others, probably.
10034 [Steve Henson and Ben Laurie]
10036 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
10037 `openssl' and second, the shortcut symlinks for the `openssl <command>'
10038 are no longer created. This way we have a single and consistent command
10039 line interface `openssl <command>', similar to `cvs <command>'.
10040 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
10042 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
10043 BIT STRING wrapper always have zero unused bits.
10046 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
10049 *) Make the top-level INSTALL documentation easier to understand.
10052 *) Makefiles updated to exit if an error occurs in a sub-directory
10053 make (including if user presses ^C) [Paul Sutton]
10055 *) Make Montgomery context stuff explicit in RSA data structure.
10058 *) Fix build order of pem and err to allow for generated pem.h.
10061 *) Fix renumbering bug in X509_NAME_delete_entry().
10064 *) Enhanced the err-ins.pl script so it makes the error library number
10065 global and can add a library name. This is needed for external ASN1 and
10066 other error libraries.
10069 *) Fixed sk_insert which never worked properly.
10072 *) Fix ASN1 macros so they can handle indefinite length construted
10073 EXPLICIT tags. Some non standard certificates use these: they can now
10077 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10078 into a single doc/ssleay.txt bundle. This way the information is still
10079 preserved but no longer messes up this directory. Now it's new room for
10080 the new set of documenation files.
10081 [Ralf S. Engelschall]
10083 *) SETs were incorrectly DER encoded. This was a major pain, because they
10084 shared code with SEQUENCEs, which aren't coded the same. This means that
10085 almost everything to do with SETs or SEQUENCEs has either changed name or
10086 number of arguments.
10087 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10089 *) Fix test data to work with the above.
10092 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10093 was already fixed by Eric for 0.9.1 it seems.
10094 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10096 *) Autodetect FreeBSD3.
10099 *) Fix various bugs in Configure. This affects the following platforms:
10103 unixware-2.0-pentium
10107 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10108 before they are needed.
10111 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10115 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10117 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10118 changed SSLeay to OpenSSL in version strings.
10119 [Ralf S. Engelschall]
10121 *) Some fixups to the top-level documents.
10124 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10125 because the symlink to include/ was missing.
10126 [Ralf S. Engelschall]
10128 *) Incorporated the popular no-RSA/DSA-only patches
10129 which allow to compile a RSA-free SSLeay.
10130 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10132 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10133 when "ssleay" is still not found.
10134 [Ralf S. Engelschall]
10136 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10137 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10139 *) Updated the README file.
10140 [Ralf S. Engelschall]
10142 *) Added various .cvsignore files in the CVS repository subdirs
10143 to make a "cvs update" really silent.
10144 [Ralf S. Engelschall]
10146 *) Recompiled the error-definition header files and added
10147 missing symbols to the Win32 linker tables.
10148 [Ralf S. Engelschall]
10150 *) Cleaned up the top-level documents;
10151 o new files: CHANGES and LICENSE
10152 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10153 o merged COPYRIGHT into LICENSE
10154 o removed obsolete TODO file
10155 o renamed MICROSOFT to INSTALL.W32
10156 [Ralf S. Engelschall]
10158 *) Removed dummy files from the 0.9.1b source tree:
10159 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10160 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10161 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10162 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10163 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10164 [Ralf S. Engelschall]
10166 *) Added various platform portability fixes.
10169 *) The Genesis of the OpenSSL rpject:
10170 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10171 Young and Tim J. Hudson created while they were working for C2Net until
10173 [The OpenSSL Project]
10176 Changes between 0.9.0b and 0.9.1b [not released]
10178 *) Updated a few CA certificates under certs/
10181 *) Changed some BIGNUM api stuff.
10184 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10185 DGUX x86, Linux Alpha, etc.
10188 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10189 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10193 *) Add -strparse option to asn1pars program which parses nested
10195 [Dr Stephen Henson <shenson@bigfoot.com>]
10197 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10200 *) DSA fix for "ca" program.
10203 *) Added "-genkey" option to "dsaparam" program.
10206 *) Added RIPE MD160 (rmd160) message digest.
10209 *) Added -a (all) option to "ssleay version" command.
10212 *) Added PLATFORM define which is the id given to Configure.
10215 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10218 *) Extended the ASN.1 parser routines.
10221 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10224 *) Added a BN_CTX to the BN library.
10227 *) Fixed the weak key values in DES library
10230 *) Changed API in EVP library for cipher aliases.
10233 *) Added support for RC2/64bit cipher.
10236 *) Converted the lhash library to the crypto/mem.c functions.
10239 *) Added more recognized ASN.1 object ids.
10242 *) Added more RSA padding checks for SSL/TLS.
10245 *) Added BIO proxy/filter functionality.
10248 *) Added extra_certs to SSL_CTX which can be used
10249 send extra CA certificates to the client in the CA cert chain sending
10250 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10253 *) Now Fortezza is denied in the authentication phase because
10254 this is key exchange mechanism is not supported by SSLeay at all.
10257 *) Additional PKCS1 checks.
10260 *) Support the string "TLSv1" for all TLS v1 ciphers.
10263 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10264 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10267 *) Fixed a few memory leaks.
10270 *) Fixed various code and comment typos.
10273 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10274 bytes sent in the client random.
10275 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob