5 Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
7 *) Enhance SSL/TLS certificate chain handling to support different
8 chains for each certificate instead of one chain in the parent SSL_CTX.
11 *) Support for fixed DH ciphersuite client authentication: where both
12 server and client use DH certificates with common parameters.
15 *) Support for fixed DH ciphersuites: those requiring DH server
19 *) Transparently support X9.42 DH parameters when calling
20 PEM_read_bio_DHparameters. This means existing applications can handle
21 the new parameter format automatically.
24 *) Initial experimental support for X9.42 DH parameter format: mainly
25 to support use of 'q' parameter for RFC5114 parameters.
28 *) Add DH parameters from RFC5114 including test data to dhtest.
31 *) Update fips_test_suite to support multiple command line options. New
32 test to induce all self test errors in sequence and check expected
36 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
37 sign or verify all in one operation.
40 *) Add fips_algvs: a multicall fips utility incorporaing all the algorithm
41 test programs and fips_test_suite. Includes functionality to parse
42 the minimal script output of fipsalgest.pl directly.
45 *) Add authorisation parameter to FIPS_module_mode_set().
48 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
51 *) Use separate DRBG fields for internal and external flags. New function
52 FIPS_drbg_health_check() to perform on demand health checking. Add
53 generation tests to fips_test_suite with reduced health check interval to
54 demonstrate periodic health checking. Add "nodh" option to
55 fips_test_suite to skip very slow DH test.
58 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
62 *) More extensive health check for DRBG checking many more failure modes.
63 New function FIPS_selftest_drbg_all() to handle every possible DRBG
64 combination: call this in fips_test_suite.
67 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
68 and POST to handle Dual EC cases.
71 *) Add support for canonical generation of DSA parameter 'g'. See
74 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
75 POST to handle HMAC cases.
78 *) Add functions FIPS_module_version() and FIPS_module_version_text()
79 to return numberical and string versions of the FIPS module number.
82 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
83 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implmeneted
84 outside the validated module in the FIPS capable OpenSSL.
87 *) Minor change to DRBG entropy callback semantics. In some cases
88 there is no mutiple of the block length between min_len and
89 max_len. Allow the callback to return more than max_len bytes
90 of entropy but discard any extra: it is the callback's responsibility
91 to ensure that the extra data discarded does not impact the
92 requested amount of entropy.
95 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
96 information in FIPS186-3, SP800-57 and SP800-131A.
99 *) CCM support via EVP. Interface is very similar to GCM case except we
100 must supply all data in one chunk (i.e. no update, final) and the
101 message length must be supplied if AAD is used. Add algorithm test
105 *) Initial version of POST overhaul. Add POST callback to allow the status
106 of POST to be monitored and/or failures induced. Modify fips_test_suite
107 to use callback. Always run all selftests even if one fails.
110 *) XTS support including algorithm test driver in the fips_gcmtest program.
111 Note: this does increase the maximum key length from 32 to 64 bytes but
112 there should be no binary compatibility issues as existing applications
113 will never use XTS mode.
116 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
117 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
118 performs algorithm blocking for unapproved PRNG types. Also do not
119 set PRNG type in FIPS_mode_set(): leave this to the application.
120 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
121 the standard OpenSSL PRNG: set additional data to a date time vector.
124 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
125 This shouldn't present any incompatibility problems because applications
126 shouldn't be using these directly and any that are will need to rethink
127 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
130 *) Extensive self tests and health checking required by SP800-90 DRBG.
131 Remove strength parameter from FIPS_drbg_instantiate and always
132 instantiate at maximum supported strength.
135 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
138 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
141 *) New function DH_compute_key_padded() to compute a DH key and pad with
142 leading zeroes if needed: this complies with SP800-56A et al.
145 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
146 anything, incomplete, subject to change and largely untested at present.
149 *) Modify fipscanisteronly build option to only build the necessary object
150 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
153 *) Add experimental option FIPSSYMS to give all symbols in
154 fipscanister.o and FIPS or fips prefix. This will avoid
155 conflicts with future versions of OpenSSL. Add perl script
156 util/fipsas.pl to preprocess assembly language source files
157 and rename any affected symbols.
160 *) Add selftest checks and algorithm block of non-fips algorithms in
161 FIPS mode. Remove DES2 from selftests.
164 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
165 return internal method without any ENGINE dependencies. Add new
166 tiny fips sign and verify functions.
169 *) New build option no-ec2m to disable characteristic 2 code.
172 *) New build option "fipscanisteronly". This only builds fipscanister.o
173 and (currently) associated fips utilities. Uses the file Makefile.fips
174 instead of Makefile.org as the prototype.
177 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
178 Update fips_gcmtest to use IV generator.
181 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
182 setting output buffer to NULL. The *Final function must be
183 called although it will not retrieve any additional data. The tag
184 can be set or retrieved with a ctrl. The IV length is by default 12
185 bytes (96 bits) but can be set to an alternative value. If the IV
186 length exceeds the maximum IV length (currently 16 bytes) it cannot be
190 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
191 underlying do_cipher function handles all cipher semantics itself
192 including padding and finalisation. This is useful if (for example)
193 an ENGINE cipher handles block padding itself. The behaviour of
194 do_cipher is subtly changed if this flag is set: the return value
195 is the number of characters written to the output buffer (zero is
196 no longer an error code) or a negative error code. Also if the
197 input buffer is NULL and length 0 finalisation should be performed.
200 *) If a candidate issuer certificate is already part of the constructed
201 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
204 *) Improve forward-security support: add functions
206 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
207 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
209 for use by SSL/TLS servers; the callback function will be called whenever a
210 new session is created, and gets to decide whether the session may be
211 cached to make it resumable (return 0) or not (return 1). (As by the
212 SSL/TLS protocol specifications, the session_id sent by the server will be
213 empty to indicate that the session is not resumable; also, the server will
214 not generate RFC 4507 (RFC 5077) session tickets.)
216 A simple reasonable callback implementation is to return is_forward_secure.
217 This parameter will be set to 1 or 0 depending on the ciphersuite selected
218 by the SSL/TLS server library, indicating whether it can provide forward
220 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
222 *) New function OPENSSL_gmtime_diff to find the difference in days
223 and seconds between two tm structures. This will be used to provide
224 additional functionality for ASN1_TIME.
227 *) Add -trusted_first option which attempts to find certificates in the
228 trusted store even if an untrusted chain is also supplied.
231 *) Initial experimental support for explicitly trusted non-root CAs.
232 OpenSSL still tries to build a complete chain to a root but if an
233 intermediate CA has a trust setting included that is used. The first
234 setting is used: whether to trust or reject.
237 *) New -verify_name option in command line utilities to set verification
241 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
242 Add CMAC pkey methods.
245 *) Experimental regnegotiation in s_server -www mode. If the client
246 browses /reneg connection is renegotiated. If /renegcert it is
247 renegotiated requesting a certificate.
250 *) Add an "external" session cache for debugging purposes to s_server. This
251 should help trace issues which normally are only apparent in deployed
252 multi-process servers.
255 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
256 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
257 BIO_set_cipher() and some obscure PEM functions were changed so they
258 can now return an error. The RAND changes required a change to the
259 RAND_METHOD structure.
262 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
263 a gcc attribute to warn if the result of a function is ignored. This
264 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
265 whose return value is often ignored.
268 Changes between 1.0.0f and 1.0.1 [xx XXX xxxx]
270 *) The format used for MDC2 RSA signatures is inconsistent between EVP
271 and the RSA_sign/RSA_verify functions. This was made more apparent when
272 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
273 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
274 the correct format in RSA_verify so both forms transparently work.
277 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
278 STRING form instead of a DigestInfo.
281 *) Some servers which support TLS 1.0 can choke if we initially indicate
282 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
283 encrypted premaster secret. As a workaround use the maximum pemitted
284 client version in client hello, this should keep such servers happy
285 and still work with previous versions of OpenSSL.
288 *) Add support for TLS/DTLS heartbeats.
289 [Robin Seggelmann <seggelmann@fh-muenster.de>]
291 *) Add support for SCTP.
292 [Robin Seggelmann <seggelmann@fh-muenster.de>]
294 *) Improved PRNG seeding for VOS.
295 [Paul Green <Paul.Green@stratus.com>]
297 *) Extensive assembler packs updates, most notably:
299 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
300 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
301 - x86_64: bit-sliced AES implementation;
302 - ARM: NEON support, contemporary platforms optimizations;
303 - s390x: z196 support;
304 - *: GHASH and GF(2^m) multiplication implementations;
308 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
309 (removal of unnecessary code)
310 [Peter Sylvester <peter.sylvester@edelweb.fr>]
312 *) Add TLS key material exporter from RFC 5705.
315 *) Add DTLS-SRTP negotiation from RFC 5764.
318 *) Add Next Protocol Negotiation,
319 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
320 disabled with a no-npn flag to config or Configure. Code donated
322 [Adam Langley <agl@google.com> and Ben Laurie]
324 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
325 NIST-P256, NIST-P521, with constant-time single point multiplication on
326 typical inputs. Compiler support for the nonstandard type __uint128_t is
327 required to use this (present in gcc 4.4 and later, for 64-bit builds).
328 Code made available under Apache License version 2.0.
330 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
331 line to include this in your build of OpenSSL, and run "make depend" (or
332 "make update"). This enables the following EC_METHODs:
334 EC_GFp_nistp224_method()
335 EC_GFp_nistp256_method()
336 EC_GFp_nistp521_method()
338 EC_GROUP_new_by_curve_name() will automatically use these (while
339 EC_GROUP_new_curve_GFp() currently prefers the more flexible
341 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
343 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
344 all platforms. Move ssize_t definition from e_os.h to the public
345 header file e_os2.h as it now appears in public header file cms.h
348 *) New -sigopt option to the ca, req and x509 utilities. Additional
349 signature parameters can be passed using this option and in
353 *) Add RSA PSS signing function. This will generate and set the
354 appropriate AlgorithmIdentifiers for PSS based on those in the
355 corresponding EVP_MD_CTX structure. No application support yet.
358 *) Support for companion algorithm specific ASN1 signing routines.
359 New function ASN1_item_sign_ctx() signs a pre-initialised
360 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
361 the appropriate parameters.
364 *) Add new algorithm specific ASN1 verification initialisation function
365 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
366 handling will be the same no matter what EVP_PKEY_METHOD is used.
367 Add a PSS handler to support verification of PSS signatures: checked
368 against a number of sample certificates.
371 *) Add signature printing for PSS. Add PSS OIDs.
372 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
374 *) Add algorithm specific signature printing. An individual ASN1 method
375 can now print out signatures instead of the standard hex dump.
377 More complex signatures (e.g. PSS) can print out more meaningful
378 information. Include DSA version that prints out the signature
382 *) Password based recipient info support for CMS library: implementing
386 *) Split password based encryption into PBES2 and PBKDF2 functions. This
387 neatly separates the code into cipher and PBE sections and is required
388 for some algorithms that split PBES2 into separate pieces (such as
392 *) Session-handling fixes:
393 - Fix handling of connections that are resuming with a session ID,
394 but also support Session Tickets.
395 - Fix a bug that suppressed issuing of a new ticket if the client
396 presented a ticket with an expired session.
397 - Try to set the ticket lifetime hint to something reasonable.
398 - Make tickets shorter by excluding irrelevant information.
399 - On the client side, don't ignore renewed tickets.
400 [Adam Langley, Bodo Moeller (Google)]
402 *) Fix PSK session representation.
405 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
407 This work was sponsored by Intel.
410 *) Add GCM support to TLS library. Some custom code is needed to split
411 the IV between the fixed (from PRF) and explicit (from TLS record)
412 portions. This adds all GCM ciphersuites supported by RFC5288 and
413 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
414 add a special AESGCM string for GCM only.
417 *) Expand range of ctrls for AES GCM. Permit setting invocation
418 field on decrypt and retrieval of invocation field only on encrypt.
421 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
422 As required by RFC5289 these ciphersuites cannot be used if for
423 versions of TLS earlier than 1.2.
426 *) For FIPS capable OpenSSL interpret a NULL default public key method
427 as unset and return the appopriate default but do *not* set the default.
428 This means we can return the appopriate method in applications that
429 swicth between FIPS and non-FIPS modes.
432 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
433 ENGINE is used then we cannot handle that in the FIPS module so we
434 keep original code iff non-FIPS operations are allowed.
437 *) Add -attime option to openssl utilities.
438 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
440 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
443 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
444 FIPS EC methods unconditionally for now.
447 *) New build option no-ec2m to disable characteristic 2 code.
450 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
451 all cases can be covered as some introduce binary incompatibilities.
454 *) Redirect RSA operations to FIPS module including keygen,
455 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
458 *) Add similar low level API blocking to ciphers.
461 *) Low level digest APIs are not approved in FIPS mode: any attempt
462 to use these will cause a fatal error. Applications that *really* want
463 to use them can use the private_* version instead.
466 *) Redirect cipher operations to FIPS module for FIPS builds.
469 *) Redirect digest operations to FIPS module for FIPS builds.
472 *) Update build system to add "fips" flag which will link in fipscanister.o
473 for static and shared library builds embedding a signature if needed.
476 *) Output TLS supported curves in preference order instead of numerical
477 order. This is currently hardcoded for the highest order curves first.
478 This should be configurable so applications can judge speed vs strength.
481 *) Add TLS v1.2 server support for client authentication.
484 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
488 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
489 FIPS modules versions.
492 *) Add TLS v1.2 client side support for client authentication. Keep cache
493 of handshake records longer as we don't know the hash algorithm to use
494 until after the certificate request message is received.
497 *) Initial TLS v1.2 client support. Add a default signature algorithms
498 extension including all the algorithms we support. Parse new signature
499 format in client key exchange. Relax some ECC signing restrictions for
500 TLS v1.2 as indicated in RFC5246.
503 *) Add server support for TLS v1.2 signature algorithms extension. Switch
504 to new signature format when needed using client digest preference.
505 All server ciphersuites should now work correctly in TLS v1.2. No client
506 support yet and no support for client certificates.
509 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
510 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
511 ciphersuites. At present only RSA key exchange ciphersuites work with
512 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
513 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
514 and version checking.
517 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
518 with this defined it will not be affected by any changes to ssl internal
519 structures. Add several utility functions to allow openssl application
520 to work with OPENSSL_NO_SSL_INTERN defined.
524 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
526 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
529 *) Permit abbreviated handshakes when renegotiating using the function
530 SSL_renegotiate_abbreviated().
531 [Robin Seggelmann <seggelmann@fh-muenster.de>]
533 *) Add call to ENGINE_register_all_complete() to
534 ENGINE_load_builtin_engines(), so some implementations get used
535 automatically instead of needing explicit application support.
538 *) Add support for TLS key exporter as described in RFC5705.
539 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
541 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
542 a few changes are required:
544 Add SSL_OP_NO_TLSv1_1 flag.
546 Update version checking logic to handle version 1.1.
547 Add explicit IV handling (ported from DTLS code).
548 Add command line options to s_client/s_server.
551 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
553 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
554 Thanks to Antonio Martin, Enterprise Secure Access Research and
555 Development, Cisco Systems, Inc. for discovering this bug and
556 preparing a fix. (CVE-2012-0050)
559 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
561 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
562 of the Vaudenay padding oracle attack on CBC mode encryption
563 which enables an efficient plaintext recovery attack against
564 the OpenSSL implementation of DTLS. Their attack exploits timing
565 differences arising during decryption processing. A research
566 paper describing this attack can be found at:
567 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
568 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
569 Security Group at Royal Holloway, University of London
570 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
571 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
572 for preparing the fix. (CVE-2011-4108)
573 [Robin Seggelmann, Michael Tuexen]
575 *) Clear bytes used for block padding of SSL 3.0 records.
577 [Adam Langley (Google)]
579 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
580 Kadianakis <desnacked@gmail.com> for discovering this issue and
581 Adam Langley for preparing the fix. (CVE-2011-4619)
582 [Adam Langley (Google)]
584 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
585 [Andrey Kulikov <amdeich@gmail.com>]
587 *) Prevent malformed RFC3779 data triggering an assertion failure.
588 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
589 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
590 [Rob Austein <sra@hactrn.net>]
592 *) Improved PRNG seeding for VOS.
593 [Paul Green <Paul.Green@stratus.com>]
595 *) Fix ssl_ciph.c set-up race.
596 [Adam Langley (Google)]
598 *) Fix spurious failures in ecdsatest.c.
599 [Emilia Käsper (Google)]
601 *) Fix the BIO_f_buffer() implementation (which was mixing different
602 interpretations of the '..._len' fields).
603 [Adam Langley (Google)]
605 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
606 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
607 threads won't reuse the same blinding coefficients.
609 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
610 lock to call BN_BLINDING_invert_ex, and avoids one use of
611 BN_BLINDING_update for each BN_BLINDING structure (previously,
612 the last update always remained unused).
613 [Emilia Käsper (Google)]
615 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
616 [Bob Buckholz (Google)]
618 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
620 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
621 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
622 [Kaspar Brand <ossl@velox.ch>]
624 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
625 for multi-threaded use of ECDH. (CVE-2011-3210)
626 [Adam Langley (Google)]
628 *) Fix x509_name_ex_d2i memory leak on bad inputs.
631 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
632 signature public key algorithm by using OID xref utilities instead.
633 Before this you could only use some ECC ciphersuites with SHA1 only.
636 *) Add protection against ECDSA timing attacks as mentioned in the paper
637 by Billy Bob Brumley and Nicola Tuveri, see:
639 http://eprint.iacr.org/2011/232.pdf
641 [Billy Bob Brumley and Nicola Tuveri]
643 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
645 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
646 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
648 *) Fix bug in string printing code: if *any* escaping is enabled we must
649 escape the escape character (backslash) or the resulting string is
653 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
655 *) Disable code workaround for ancient and obsolete Netscape browsers
656 and servers: an attacker can use it in a ciphersuite downgrade attack.
657 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
660 *) Fixed J-PAKE implementation error, originally discovered by
661 Sebastien Martini, further info and confirmation from Stefan
662 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
665 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
667 *) Fix extension code to avoid race conditions which can result in a buffer
668 overrun vulnerability: resumed sessions must not be modified as they can
669 be shared by multiple threads. CVE-2010-3864
672 *) Fix WIN32 build system to correctly link an ENGINE directory into
676 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
678 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
680 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
682 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
684 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
685 context. The operation can be customised via the ctrl mechanism in
686 case ENGINEs want to include additional functionality.
689 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
692 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
693 output hashes compatible with older versions of OpenSSL.
694 [Willy Weisz <weisz@vcpc.univie.ac.at>]
696 *) Fix compression algorithm handling: if resuming a session use the
697 compression algorithm of the resumed session instead of determining
698 it from client hello again. Don't allow server to change algorithm.
701 *) Add load_crls() function to apps tidying load_certs() too. Add option
702 to verify utility to allow additional CRLs to be included.
705 *) Update OCSP request code to permit adding custom headers to the request:
706 some responders need this.
709 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
711 [Julia Lawall <julia@diku.dk>]
713 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
714 needlessly dereferenced structures, used obsolete functions and
715 didn't handle all updated verify codes correctly.
718 *) Disable MD2 in the default configuration.
721 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
722 indicate the initial BIO being pushed or popped. This makes it possible
723 to determine whether the BIO is the one explicitly called or as a result
724 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
725 it handles reference counts correctly and doesn't zero out the I/O bio
726 when it is not being explicitly popped. WARNING: applications which
727 included workarounds for the old buggy behaviour will need to be modified
728 or they could free up already freed BIOs.
731 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
732 renaming to all platforms (within the 0.9.8 branch, this was
733 done conditionally on Netware platforms to avoid a name clash).
734 [Guenter <lists@gknw.net>]
736 *) Add ECDHE and PSK support to DTLS.
737 [Michael Tuexen <tuexen@fh-muenster.de>]
739 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
743 *) Add "missing" function EVP_MD_flags() (without this the only way to
744 retrieve a digest flags is by accessing the structure directly. Update
745 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
746 or cipher is registered as in the "from" argument. Print out all
747 registered digests in the dgst usage message instead of manually
748 attempting to work them out.
751 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
752 this allows the use of compression and extensions. Change default cipher
753 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
754 by default unless an application cipher string requests it.
757 *) Alter match criteria in PKCS12_parse(). It used to try to use local
758 key ids to find matching certificates and keys but some PKCS#12 files
759 don't follow the (somewhat unwritten) rules and this strategy fails.
760 Now just gather all certificates together and the first private key
761 then look for the first certificate that matches the key.
764 *) Support use of registered digest and cipher names for dgst and cipher
765 commands instead of having to add each one as a special case. So now
772 openssl dgst -sha256 foo
774 and this works for ENGINE based algorithms too.
778 *) Update Gost ENGINE to support parameter files.
779 [Victor B. Wagner <vitus@cryptocom.ru>]
781 *) Support GeneralizedTime in ca utility.
782 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
784 *) Enhance the hash format used for certificate directory links. The new
785 form uses the canonical encoding (meaning equivalent names will work
786 even if they aren't identical) and uses SHA1 instead of MD5. This form
787 is incompatible with the older format and as a result c_rehash should
788 be used to rebuild symbolic links.
791 *) Make PKCS#8 the default write format for private keys, replacing the
792 traditional format. This form is standardised, more secure and doesn't
793 include an implicit MD5 dependency.
796 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
797 committed to OpenSSL should pass this lot as a minimum.
800 *) Add session ticket override functionality for use by EAP-FAST.
801 [Jouni Malinen <j@w1.fi>]
803 *) Modify HMAC functions to return a value. Since these can be implemented
804 in an ENGINE errors can occur.
807 *) Type-checked OBJ_bsearch_ex.
810 *) Type-checked OBJ_bsearch. Also some constification necessitated
811 by type-checking. Still to come: TXT_DB, bsearch(?),
812 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
816 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
817 seconds to a tm structure directly, instead of going through OS
818 specific date routines. This avoids any issues with OS routines such
819 as the year 2038 bug. New *_adj() functions for ASN1 time structures
820 and X509_time_adj_ex() to cover the extended range. The existing
821 X509_time_adj() is still usable and will no longer have any date issues.
824 *) Delta CRL support. New use deltas option which will attempt to locate
825 and search any appropriate delta CRLs available.
827 This work was sponsored by Google.
830 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
831 code and add additional score elements. Validate alternate CRL paths
832 as part of the CRL checking and indicate a new error "CRL path validation
833 error" in this case. Applications wanting additional details can use
834 the verify callback and check the new "parent" field. If this is not
835 NULL CRL path validation is taking place. Existing applications wont
836 see this because it requires extended CRL support which is off by
839 This work was sponsored by Google.
842 *) Support for freshest CRL extension.
844 This work was sponsored by Google.
847 *) Initial indirect CRL support. Currently only supported in the CRLs
848 passed directly and not via lookup. Process certificate issuer
849 CRL entry extension and lookup CRL entries by bother issuer name
850 and serial number. Check and process CRL issuer entry in IDP extension.
852 This work was sponsored by Google.
855 *) Add support for distinct certificate and CRL paths. The CRL issuer
856 certificate is validated separately in this case. Only enabled if
857 an extended CRL support flag is set: this flag will enable additional
858 CRL functionality in future.
860 This work was sponsored by Google.
863 *) Add support for policy mappings extension.
865 This work was sponsored by Google.
868 *) Fixes to pathlength constraint, self issued certificate handling,
869 policy processing to align with RFC3280 and PKITS tests.
871 This work was sponsored by Google.
874 *) Support for name constraints certificate extension. DN, email, DNS
875 and URI types are currently supported.
877 This work was sponsored by Google.
880 *) To cater for systems that provide a pointer-based thread ID rather
881 than numeric, deprecate the current numeric thread ID mechanism and
882 replace it with a structure and associated callback type. This
883 mechanism allows a numeric "hash" to be extracted from a thread ID in
884 either case, and on platforms where pointers are larger than 'long',
885 mixing is done to help ensure the numeric 'hash' is usable even if it
886 can't be guaranteed unique. The default mechanism is to use "&errno"
887 as a pointer-based thread ID to distinguish between threads.
889 Applications that want to provide their own thread IDs should now use
890 CRYPTO_THREADID_set_callback() to register a callback that will call
891 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
893 Note that ERR_remove_state() is now deprecated, because it is tied
894 to the assumption that thread IDs are numeric. ERR_remove_state(0)
895 to free the current thread's error state should be replaced by
896 ERR_remove_thread_state(NULL).
898 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
899 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
900 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
901 application was previously providing a numeric thread callback that
902 was inappropriate for distinguishing threads, then uniqueness might
903 have been obtained with &errno that happened immediately in the
904 intermediate development versions of OpenSSL; this is no longer the
905 case, the numeric thread callback will now override the automatic use
907 [Geoff Thorpe, with help from Bodo Moeller]
909 *) Initial support for different CRL issuing certificates. This covers a
910 simple case where the self issued certificates in the chain exist and
911 the real CRL issuer is higher in the existing chain.
913 This work was sponsored by Google.
916 *) Removed effectively defunct crypto/store from the build.
919 *) Revamp of STACK to provide stronger type-checking. Still to come:
920 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
921 ASN1_STRING, CONF_VALUE.
924 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
925 RAM on SSL connections. This option can save about 34k per idle SSL.
928 *) Revamp of LHASH to provide stronger type-checking. Still to come:
929 STACK, TXT_DB, bsearch, qsort.
932 *) Initial support for Cryptographic Message Syntax (aka CMS) based
933 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
934 support for data, signedData, compressedData, digestedData and
935 encryptedData, envelopedData types included. Scripts to check against
936 RFC4134 examples draft and interop and consistency checks of many
937 content types and variants.
940 *) Add options to enc utility to support use of zlib compression BIO.
943 *) Extend mk1mf to support importing of options and assembly language
944 files from Configure script, currently only included in VC-WIN32.
945 The assembly language rules can now optionally generate the source
946 files from the associated perl scripts.
949 *) Implement remaining functionality needed to support GOST ciphersuites.
950 Interop testing has been performed using CryptoPro implementations.
951 [Victor B. Wagner <vitus@cryptocom.ru>]
953 *) s390x assembler pack.
956 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
960 *) Implement Opaque PRF Input TLS extension as specified in
961 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
962 official specification yet and no extension type assignment by
963 IANA exists, this extension (for now) will have to be explicitly
964 enabled when building OpenSSL by providing the extension number
965 to use. For example, specify an option
967 -DTLSEXT_TYPE_opaque_prf_input=0x9527
969 to the "config" or "Configure" script to enable the extension,
970 assuming extension number 0x9527 (which is a completely arbitrary
971 and unofficial assignment based on the MD5 hash of the Internet
972 Draft). Note that by doing so, you potentially lose
973 interoperability with other TLS implementations since these might
974 be using the same extension number for other purposes.
976 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
977 opaque PRF input value to use in the handshake. This will create
978 an interal copy of the length-'len' string at 'src', and will
979 return non-zero for success.
981 To get more control and flexibility, provide a callback function
984 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
985 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
989 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
992 Callback function 'cb' will be called in handshakes, and is
993 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
994 Argument 'arg' is for application purposes (the value as given to
995 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
996 be provided to the callback function). The callback function
997 has to return non-zero to report success: usually 1 to use opaque
998 PRF input just if possible, or 2 to enforce use of the opaque PRF
999 input. In the latter case, the library will abort the handshake
1000 if opaque PRF input is not successfully negotiated.
1002 Arguments 'peerinput' and 'len' given to the callback function
1003 will always be NULL and 0 in the case of a client. A server will
1004 see the client's opaque PRF input through these variables if
1005 available (NULL and 0 otherwise). Note that if the server
1006 provides an opaque PRF input, the length must be the same as the
1007 length of the client's opaque PRF input.
1009 Note that the callback function will only be called when creating
1010 a new session (session resumption can resume whatever was
1011 previously negotiated), and will not be called in SSL 2.0
1012 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1013 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1014 for applications that need to enforce opaque PRF input.
1018 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1021 [Victor B. Wagner <vitus@cryptocom.ru>]
1023 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1024 RFC4507bis. The encrypted ticket format is an encrypted encoded
1025 SSL_SESSION structure, that way new session features are automatically
1028 If a client application caches session in an SSL_SESSION structure
1029 support is transparent because tickets are now stored in the encoded
1032 The SSL_CTX structure automatically generates keys for ticket
1033 protection in servers so again support should be possible
1034 with no application modification.
1036 If a client or server wishes to disable RFC4507 support then the option
1037 SSL_OP_NO_TICKET can be set.
1039 Add a TLS extension debugging callback to allow the contents of any client
1040 or server extensions to be examined.
1042 This work was sponsored by Google.
1045 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1046 OpenSSL should now compile cleanly on gcc 4.2
1047 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1049 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1050 support including streaming MAC support: this is required for GOST
1051 ciphersuite support.
1052 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1054 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1055 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1056 to output in BER and PEM format.
1059 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1060 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1061 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1062 ENGINE support for HMAC keys which are unextractable. New -mac and
1063 -macopt options to dgst utility.
1066 *) New option -sigopt to dgst utility. Update dgst to use
1067 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1068 alternative signing paramaters such as X9.31 or PSS in the dgst
1072 *) Change ssl_cipher_apply_rule(), the internal function that does
1073 the work each time a ciphersuite string requests enabling
1074 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1075 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1076 the order of disabled ciphersuites such that those ciphersuites
1077 that most recently went from enabled to disabled not only stay
1078 in order with respect to each other, but also have higher priority
1079 than other disabled ciphersuites the next time ciphersuites are
1082 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1083 the same ciphersuites as with "HIGH" alone, but in a specific
1084 order where the PSK ciphersuites come first (since they are the
1085 most recently disabled ciphersuites when "HIGH" is parsed).
1087 Also, change ssl_create_cipher_list() (using this new
1088 funcionality) such that between otherwise identical
1089 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1093 *) Change ssl_create_cipher_list() so that it automatically
1094 arranges the ciphersuites in reasonable order before starting
1095 to process the rule string. Thus, the definition for "DEFAULT"
1096 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1097 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1098 This makes it much easier to arrive at a reasonable default order
1099 in applications for which anonymous ciphers are OK (meaning
1100 that you can't actually use DEFAULT).
1101 [Bodo Moeller; suggested by Victor Duchovni]
1103 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1104 processing) into multiple integers instead of setting
1105 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1106 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1107 (These masks as well as the individual bit definitions are hidden
1108 away into the non-exported interface ssl/ssl_locl.h, so this
1109 change to the definition of the SSL_CIPHER structure shouldn't
1110 affect applications.) This give us more bits for each of these
1111 categories, so there is no longer a need to coagulate AES128 and
1112 AES256 into a single algorithm bit, and to coagulate Camellia128
1113 and Camellia256 into a single algorithm bit, which has led to all
1116 Thus, among other things, the kludge introduced in 0.9.7m and
1117 0.9.8e for masking out AES256 independently of AES128 or masking
1118 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1120 With the change, we also introduce new ciphersuite aliases that
1121 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1125 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1126 Use the leftmost N bytes of the signature input if the input is
1127 larger than the prime q (with N being the size in bytes of q).
1130 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1131 it yet and it is largely untested.
1134 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1137 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1138 some compilers (gcc 4.2 and later) reject their use. Safestack is
1139 reimplemented. Update ASN1 to avoid use of legacy functions.
1142 *) Win32/64 targets are linked with Winsock2.
1145 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1146 to external functions. This can be used to increase CRL handling
1147 efficiency especially when CRLs are very large by (for example) storing
1148 the CRL revoked certificates in a database.
1151 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1152 new CRLs added to a directory can be used. New command line option
1153 -verify_return_error to s_client and s_server. This causes real errors
1154 to be returned by the verify callback instead of carrying on no matter
1155 what. This reflects the way a "real world" verify callback would behave.
1158 *) GOST engine, supporting several GOST algorithms and public key formats.
1159 Kindly donated by Cryptocom.
1162 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1163 partitioned by DP are handled but no indirect CRL or reason partitioning
1164 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1165 selected via a scoring technique which handles IDP and AKID in CRLs.
1168 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1169 will ultimately be used for all verify operations: this will remove the
1170 X509_STORE dependency on certificate verification and allow alternative
1171 lookup methods. X509_STORE based implementations of these two callbacks.
1174 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1175 Modify get_crl() to find a valid (unexpired) CRL if possible.
1178 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1179 this would be called X509_CRL_cmp() but that name is already used by
1180 a function that just compares CRL issuer names. Cache several CRL
1181 extensions in X509_CRL structure and cache CRLDP in X509.
1184 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1185 this maps equivalent X509_NAME structures into a consistent structure.
1186 Name comparison can then be performed rapidly using memcmp().
1189 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1193 *) Allow digests to supply their own micalg string for S/MIME type using
1194 the ctrl EVP_MD_CTRL_MICALG.
1197 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1198 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1199 ctrl. It can then customise the structure before and/or after signing
1203 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1204 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1205 to free up any added signature OIDs.
1208 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1209 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1210 digest and cipher tables. New options added to openssl utility:
1211 list-message-digest-algorithms and list-cipher-algorithms.
1214 *) Change the array representation of binary polynomials: the list
1215 of degrees of non-zero coefficients is now terminated with -1.
1216 Previously it was terminated with 0, which was also part of the
1217 value; thus, the array representation was not applicable to
1218 polynomials where t^0 has coefficient zero. This change makes
1219 the array representation useful in a more general context.
1222 *) Various modifications and fixes to SSL/TLS cipher string
1223 handling. For ECC, the code now distinguishes between fixed ECDH
1224 with RSA certificates on the one hand and with ECDSA certificates
1225 on the other hand, since these are separate ciphersuites. The
1226 unused code for Fortezza ciphersuites has been removed.
1228 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1229 (not "ECDHE"). For consistency with the code for DH
1230 certificates, use of ECDH certificates is now considered ECDH
1231 authentication, not RSA or ECDSA authentication (the latter is
1232 merely the CA's signing algorithm and not actively used in the
1235 The temporary ciphersuite alias "ECCdraft" is no longer
1236 available, and ECC ciphersuites are no longer excluded from "ALL"
1237 and "DEFAULT". The following aliases now exist for RFC 4492
1238 ciphersuites, most of these by analogy with the DH case:
1240 kECDHr - ECDH cert, signed with RSA
1241 kECDHe - ECDH cert, signed with ECDSA
1242 kECDH - ECDH cert (signed with either RSA or ECDSA)
1243 kEECDH - ephemeral ECDH
1244 ECDH - ECDH cert or ephemeral ECDH
1250 AECDH - anonymous ECDH
1251 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1255 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1256 Use correct micalg parameters depending on digest(s) in signed message.
1259 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1260 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1263 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1264 an engine to register a method. Add ENGINE lookups for methods and
1265 functional reference processing.
1268 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1269 EVP_{Sign,Verify}* which allow an application to customise the signature
1273 *) New -resign option to smime utility. This adds one or more signers
1274 to an existing PKCS#7 signedData structure. Also -md option to use an
1275 alternative message digest algorithm for signing.
1278 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1279 create PKCS7 structures containing multiple signers. Update smime
1280 application to support multiple signers.
1283 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1287 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1288 Reorganize PBE internals to lookup from a static table using NIDs,
1289 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1290 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1291 PRF which will be automatically used with PBES2.
1294 *) Replace the algorithm specific calls to generate keys in "req" with the
1298 *) Update PKCS#7 enveloped data routines to use new API. This is now
1299 supported by any public key method supporting the encrypt operation. A
1300 ctrl is added to allow the public key algorithm to examine or modify
1301 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1305 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1306 a default digest type to use. In most cases this will be SHA1 but some
1307 algorithms (such as GOST) need to specify an alternative digest. The
1308 return value indicates how strong the prefernce is 1 means optional and
1309 2 is mandatory (that is it is the only supported type). Modify
1310 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1311 use the default md. Update openssl utilities to use the default digest
1312 type for signing if it is not explicitly indicated.
1315 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1316 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1317 signing method from the key type. This effectively removes the link
1318 between digests and public key types.
1321 *) Add an OID cross reference table and utility functions. Its purpose is to
1322 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1323 rsaEncryption. This will allow some of the algorithm specific hackery
1324 needed to use the correct OID to be removed.
1327 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1328 structures for PKCS7_sign(). They are now set up by the relevant public
1332 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1335 *) Add support for key derivation (agreement) in the API, DH method and
1339 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1340 public and private key formats. As a side effect these add additional
1341 command line functionality not previously available: DSA signatures can be
1342 generated and verified using pkeyutl and DH key support and generation in
1347 [Oliver Tappe <zooey@hirschkaefer.de>]
1349 *) New make target "install_html_docs" installs HTML renditions of the
1351 [Oliver Tappe <zooey@hirschkaefer.de>]
1353 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1354 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1355 support key and parameter generation and add initial key generation
1356 functionality for RSA.
1359 *) Add functions for main EVP_PKEY_method operations. The undocumented
1360 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1361 EVP_PKEY_{encrypt,decrypt}_old.
1364 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1365 key API, doesn't do much yet.
1368 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1369 public key algorithms. New option to openssl utility:
1370 "list-public-key-algorithms" to print out info.
1373 *) Implement the Supported Elliptic Curves Extension for
1374 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1377 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1378 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1381 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1382 utilities such as rsa, dsa, dsaparam etc except they process any key
1386 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1387 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1388 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1392 *) Initial support for pluggable public key ASN1.
1393 De-spaghettify the public key ASN1 handling. Move public and private
1394 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1395 algorithm specific handling to a single module within the relevant
1396 algorithm directory. Add functions to allow (near) opaque processing
1397 of public and private key structures.
1400 *) Implement the Supported Point Formats Extension for
1401 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1404 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1405 for the psk identity [hint] and the psk callback functions to the
1406 SSL_SESSION, SSL and SSL_CTX structure.
1409 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1413 SSL_CTX_use_psk_identity_hint
1414 SSL_get_psk_identity_hint
1415 SSL_get_psk_identity
1416 SSL_use_psk_identity_hint
1418 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1420 *) Add RFC 3161 compliant time stamp request creation, response generation
1421 and response verification functionality.
1422 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1424 *) Add initial support for TLS extensions, specifically for the server_name
1425 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1426 have new members for a host name. The SSL data structure has an
1427 additional member SSL_CTX *initial_ctx so that new sessions can be
1428 stored in that context to allow for session resumption, even after the
1429 SSL has been switched to a new SSL_CTX in reaction to a client's
1430 server_name extension.
1432 New functions (subject to change):
1434 SSL_get_servername()
1435 SSL_get_servername_type()
1438 New CTRL codes and macros (subject to change):
1440 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1441 - SSL_CTX_set_tlsext_servername_callback()
1442 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1443 - SSL_CTX_set_tlsext_servername_arg()
1444 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1446 openssl s_client has a new '-servername ...' option.
1448 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1449 '-key2 ...', '-servername_fatal' (subject to change). This allows
1450 testing the HostName extension for a specific single host name ('-cert'
1451 and '-key' remain fallbacks for handshakes without HostName
1452 negotiation). If the unrecogninzed_name alert has to be sent, this by
1453 default is a warning; it becomes fatal with the '-servername_fatal'
1456 [Peter Sylvester, Remy Allais, Christophe Renou]
1458 *) Whirlpool hash implementation is added.
1461 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1462 bn(64,32). Because of instruction set limitations it doesn't have
1463 any negative impact on performance. This was done mostly in order
1464 to make it possible to share assembler modules, such as bn_mul_mont
1465 implementations, between 32- and 64-bit builds without hassle.
1468 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1469 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1473 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1474 dedicated Montgomery multiplication procedure, is introduced.
1475 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1476 "64-bit" performance on certain 32-bit targets.
1479 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1480 in SSL structures. New SSL ctrl to set maximum send fragment size.
1481 Save memory by seeting the I/O buffer sizes dynamically instead of
1482 using the maximum available value.
1485 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1486 in addition to the text details.
1489 *) Very, very preliminary EXPERIMENTAL support for printing of general
1490 ASN1 structures. This currently produces rather ugly output and doesn't
1491 handle several customised structures at all.
1494 *) Integrated support for PVK file format and some related formats such
1495 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1496 these in the 'rsa' and 'dsa' utilities.
1499 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1502 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1503 place for the (very old) "NETSCAPE" format certificates which are now
1504 handled using new ASN1 code equivalents.
1507 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1508 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1509 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1512 *) Modify CRL distribution points extension code to print out previously
1513 unsupported fields. Enhance extension setting code to allow setting of
1517 *) Add print and set support for Issuing Distribution Point CRL extension.
1520 *) Change 'Configure' script to enable Camellia by default.
1523 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1525 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1526 Thanks to Antonio Martin, Enterprise Secure Access Research and
1527 Development, Cisco Systems, Inc. for discovering this bug and
1528 preparing a fix. (CVE-2012-0050)
1531 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1533 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1534 of the Vaudenay padding oracle attack on CBC mode encryption
1535 which enables an efficient plaintext recovery attack against
1536 the OpenSSL implementation of DTLS. Their attack exploits timing
1537 differences arising during decryption processing. A research
1538 paper describing this attack can be found at:
1539 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1540 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1541 Security Group at Royal Holloway, University of London
1542 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1543 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1544 for preparing the fix. (CVE-2011-4108)
1545 [Robin Seggelmann, Michael Tuexen]
1547 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1548 [Ben Laurie, Kasper <ekasper@google.com>]
1550 *) Clear bytes used for block padding of SSL 3.0 records.
1552 [Adam Langley (Google)]
1554 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1555 Kadianakis <desnacked@gmail.com> for discovering this issue and
1556 Adam Langley for preparing the fix. (CVE-2011-4619)
1557 [Adam Langley (Google)]
1559 *) Prevent malformed RFC3779 data triggering an assertion failure.
1560 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1561 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1562 [Rob Austein <sra@hactrn.net>]
1564 *) Fix ssl_ciph.c set-up race.
1565 [Adam Langley (Google)]
1567 *) Fix spurious failures in ecdsatest.c.
1568 [Emilia Käsper (Google)]
1570 *) Fix the BIO_f_buffer() implementation (which was mixing different
1571 interpretations of the '..._len' fields).
1572 [Adam Langley (Google)]
1574 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1575 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1576 threads won't reuse the same blinding coefficients.
1578 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1579 lock to call BN_BLINDING_invert_ex, and avoids one use of
1580 BN_BLINDING_update for each BN_BLINDING structure (previously,
1581 the last update always remained unused).
1582 [Emilia Käsper (Google)]
1584 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1585 for multi-threaded use of ECDH.
1586 [Adam Langley (Google)]
1588 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1591 *) Add protection against ECDSA timing attacks as mentioned in the paper
1592 by Billy Bob Brumley and Nicola Tuveri, see:
1594 http://eprint.iacr.org/2011/232.pdf
1596 [Billy Bob Brumley and Nicola Tuveri]
1598 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1600 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1601 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1603 *) Fix bug in string printing code: if *any* escaping is enabled we must
1604 escape the escape character (backslash) or the resulting string is
1608 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1610 *) Disable code workaround for ancient and obsolete Netscape browsers
1611 and servers: an attacker can use it in a ciphersuite downgrade attack.
1612 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1615 *) Fixed J-PAKE implementation error, originally discovered by
1616 Sebastien Martini, further info and confirmation from Stefan
1617 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1620 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1622 *) Fix extension code to avoid race conditions which can result in a buffer
1623 overrun vulnerability: resumed sessions must not be modified as they can
1624 be shared by multiple threads. CVE-2010-3864
1627 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1630 *) Don't reencode certificate when calculating signature: cache and use
1631 the original encoding instead. This makes signature verification of
1632 some broken encodings work correctly.
1635 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1636 is also one of the inputs.
1637 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1639 *) Don't repeatedly append PBE algorithms to table if they already exist.
1640 Sort table on each new add. This effectively makes the table read only
1641 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1645 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1647 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1650 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1651 access or freeing data twice (CVE-2010-0742)
1652 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1654 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1655 common in certificates and some applications which only call
1656 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1660 Reduce copying into .apps and .test in makevms.com
1661 Don't try to use blank CA certificate in CA.com
1662 Allow use of C files from original directories in maketests.com
1663 [Steven M. Schweda" <sms@antinode.info>]
1665 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1667 *) When rejecting SSL/TLS records due to an incorrect version number, never
1668 update s->server with a new major version number. As of
1669 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1670 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1671 the previous behavior could result in a read attempt at NULL when
1672 receiving specific incorrect SSL/TLS records once record payload
1673 protection is active. (CVE-2010-0740)
1674 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1676 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1677 could be crashed if the relevant tables were not present (e.g. chrooted).
1678 [Tomas Hoger <thoger@redhat.com>]
1680 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1682 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1683 [Martin Olsson, Neel Mehta]
1685 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1686 accommodate for stack sorting, always a write lock!).
1689 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1690 excessive delays in the RAND_poll(): over a minute. As a workaround
1691 include a time check in the inner Heap32Next loop too.
1694 *) The code that handled flushing of data in SSL/TLS originally used the
1695 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1696 the problem outlined in PR#1949. The fix suggested there however can
1697 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1698 of Apache). So instead simplify the code to flush unconditionally.
1699 This should be fine since flushing with no data to flush is a no op.
1702 *) Handle TLS versions 2.0 and later properly and correctly use the
1703 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1704 off ancient servers have a habit of sticking around for a while...
1707 *) Modify compression code so it frees up structures without using the
1708 ex_data callbacks. This works around a problem where some applications
1709 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1710 restarting) then use compression (e.g. SSL with compression) later.
1711 This results in significant per-connection memory leaks and
1712 has caused some security issues including CVE-2008-1678 and
1716 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1717 change when encrypting or decrypting.
1720 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1721 connect and renegotiate with servers which do not support RI.
1722 Until RI is more widely deployed this option is enabled by default.
1725 *) Add "missing" ssl ctrls to clear options and mode.
1728 *) If client attempts to renegotiate and doesn't support RI respond with
1729 a no_renegotiation alert as required by RFC5746. Some renegotiating
1730 TLS clients will continue a connection gracefully when they receive
1731 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1732 waiting for a server hello which it will never receive. Now we treat a
1733 received no_renegotiation alert as a fatal error. This is because
1734 applications requesting a renegotiation might well expect it to succeed
1735 and would have no code in place to handle the server denying it so the
1736 only safe thing to do is to terminate the connection.
1739 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1740 peer supports secure renegotiation and 0 otherwise. Print out peer
1741 renegotiation support in s_client/s_server.
1744 *) Replace the highly broken and deprecated SPKAC certification method with
1745 the updated NID creation version. This should correctly handle UTF8.
1748 *) Implement RFC5746. Re-enable renegotiation but require the extension
1749 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1750 turns out to be a bad idea. It has been replaced by
1751 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1752 SSL_CTX_set_options(). This is really not recommended unless you
1753 know what you are doing.
1754 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1756 *) Fixes to stateless session resumption handling. Use initial_ctx when
1757 issuing and attempting to decrypt tickets in case it has changed during
1758 servername handling. Use a non-zero length session ID when attempting
1759 stateless session resumption: this makes it possible to determine if
1760 a resumption has occurred immediately after receiving server hello
1761 (several places in OpenSSL subtly assume this) instead of later in
1765 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1766 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1767 fixes for a few places where the return code is not checked
1769 [Julia Lawall <julia@diku.dk>]
1771 *) Add --strict-warnings option to Configure script to include devteam
1772 warnings in other configurations.
1775 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1776 makes it possible to install openssl libraries in locations which
1777 have names other than "lib", for example "/usr/lib64" which some
1779 [Steve Henson, based on patch from Jeremy Utley]
1781 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1782 X690 8.9.12 and can produce some misleading textual output of OIDs.
1783 [Steve Henson, reported by Dan Kaminsky]
1785 *) Delete MD2 from algorithm tables. This follows the recommendation in
1786 several standards that it is not used in new applications due to
1787 several cryptographic weaknesses. For binary compatibility reasons
1788 the MD2 API is still compiled in by default.
1791 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1795 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1796 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1798 [Guenter <lists@gknw.net>]
1800 *) Fix the server certificate chain building code to use X509_verify_cert(),
1801 it used to have an ad-hoc builder which was unable to cope with anything
1802 other than a simple chain.
1803 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1805 *) Don't check self signed certificate signatures in X509_verify_cert()
1806 by default (a flag can override this): it just wastes time without
1807 adding any security. As a useful side effect self signed root CAs
1808 with non-FIPS digests are now usable in FIPS mode.
1811 *) In dtls1_process_out_of_seq_message() the check if the current message
1812 is already buffered was missing. For every new message was memory
1813 allocated, allowing an attacker to perform an denial of service attack
1814 with sending out of seq handshake messages until there is no memory
1815 left. Additionally every future messege was buffered, even if the
1816 sequence number made no sense and would be part of another handshake.
1817 So only messages with sequence numbers less than 10 in advance will be
1818 buffered. (CVE-2009-1378)
1819 [Robin Seggelmann, discovered by Daniel Mentz]
1821 *) Records are buffered if they arrive with a future epoch to be
1822 processed after finishing the corresponding handshake. There is
1823 currently no limitation to this buffer allowing an attacker to perform
1824 a DOS attack with sending records with future epochs until there is no
1825 memory left. This patch adds the pqueue_size() function to detemine
1826 the size of a buffer and limits the record buffer to 100 entries.
1828 [Robin Seggelmann, discovered by Daniel Mentz]
1830 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1831 parent structure is freed. (CVE-2009-1379)
1834 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1835 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1838 [Ilya O. <vrghost@gmail.com>]
1840 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1842 *) Disable renegotiation completely - this fixes a severe security
1843 problem (CVE-2009-3555) at the cost of breaking all
1844 renegotiation. Renegotiation can be re-enabled by setting
1845 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1846 run-time. This is really not recommended unless you know what
1850 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1852 *) Don't set val to NULL when freeing up structures, it is freed up by
1853 underlying code. If sizeof(void *) > sizeof(long) this can result in
1854 zeroing past the valid field. (CVE-2009-0789)
1855 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1857 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1858 checked correctly. This would allow some invalid signed attributes to
1859 appear to verify correctly. (CVE-2009-0591)
1860 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1862 *) Reject UniversalString and BMPString types with invalid lengths. This
1863 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1864 a legal length. (CVE-2009-0590)
1867 *) Set S/MIME signing as the default purpose rather than setting it
1868 unconditionally. This allows applications to override it at the store
1872 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1873 to handle some structures.
1876 *) Improve efficiency of mem_gets: don't search whole buffer each time
1878 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1880 *) New -hex option for openssl rand.
1883 *) Print out UTF8String and NumericString when parsing ASN1.
1886 *) Support NumericString type for name components.
1889 *) Allow CC in the environment to override the automatically chosen
1890 compiler. Note that nothing is done to ensure flags work with the
1894 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1896 *) Properly check EVP_VerifyFinal() and similar return values
1898 [Ben Laurie, Bodo Moeller, Google Security Team]
1900 *) Enable TLS extensions by default.
1903 *) Allow the CHIL engine to be loaded, whether the application is
1904 multithreaded or not. (This does not release the developer from the
1905 obligation to set up the dynamic locking callbacks.)
1906 [Sander Temme <sander@temme.net>]
1908 *) Use correct exit code if there is an error in dgst command.
1909 [Steve Henson; problem pointed out by Roland Dirlewanger]
1911 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1912 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1915 *) Add experimental JPAKE support, including demo authentication in
1916 s_client and s_server.
1919 *) Set the comparison function in v3_addr_canonize().
1920 [Rob Austein <sra@hactrn.net>]
1922 *) Add support for XMPP STARTTLS in s_client.
1923 [Philip Paeps <philip@freebsd.org>]
1925 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1926 to ensure that even with this option, only ciphersuites in the
1927 server's preference list will be accepted. (Note that the option
1928 applies only when resuming a session, so the earlier behavior was
1929 just about the algorithm choice for symmetric cryptography.)
1932 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1934 *) Fix NULL pointer dereference if a DTLS server received
1935 ChangeCipherSpec as first record (CVE-2009-1386).
1938 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1939 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1942 *) The fix in 0.9.8c that supposedly got rid of unsafe
1943 double-checked locking was incomplete for RSA blinding,
1944 addressing just one layer of what turns out to have been
1945 doubly unsafe triple-checked locking.
1947 So now fix this for real by retiring the MONT_HELPER macro
1948 in crypto/rsa/rsa_eay.c.
1950 [Bodo Moeller; problem pointed out by Marius Schilder]
1952 *) Various precautionary measures:
1954 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1956 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1957 (NB: This would require knowledge of the secret session ticket key
1958 to exploit, in which case you'd be SOL either way.)
1960 - Change bn_nist.c so that it will properly handle input BIGNUMs
1961 outside the expected range.
1963 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1966 [Neel Mehta, Bodo Moeller]
1968 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1969 the load fails. Useful for distros.
1970 [Ben Laurie and the FreeBSD team]
1972 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1975 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1978 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1980 This work was sponsored by Logica.
1983 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1984 keystores. Support for SSL/TLS client authentication too.
1985 Not compiled unless enable-capieng specified to Configure.
1987 This work was sponsored by Logica.
1990 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1991 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1992 attribute creation routines such as certifcate requests and PKCS#12
1996 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1998 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1999 handshake which could lead to a cilent crash as found using the
2000 Codenomicon TLS test suite (CVE-2008-1672)
2001 [Steve Henson, Mark Cox]
2003 *) Fix double free in TLS server name extensions which could lead to
2004 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2007 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2009 Clear the error queue to ensure that error entries left from
2010 older function calls do not interfere with the correct operation.
2011 [Lutz Jaenicke, Erik de Castro Lopo]
2013 *) Remove root CA certificates of commercial CAs:
2015 The OpenSSL project does not recommend any specific CA and does not
2016 have any policy with respect to including or excluding any CA.
2017 Therefore it does not make any sense to ship an arbitrary selection
2018 of root CA certificates with the OpenSSL software.
2021 *) RSA OAEP patches to fix two separate invalid memory reads.
2022 The first one involves inputs when 'lzero' is greater than
2023 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2024 before the beginning of from). The second one involves inputs where
2025 the 'db' section contains nothing but zeroes (there is a one-byte
2026 invalid read after the end of 'db').
2027 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2029 *) Partial backport from 0.9.9-dev:
2031 Introduce bn_mul_mont (dedicated Montgomery multiplication
2032 procedure) as a candidate for BIGNUM assembler implementation.
2033 While 0.9.9-dev uses assembler for various architectures, only
2034 x86_64 is available by default here in the 0.9.8 branch, and
2035 32-bit x86 is available through a compile-time setting.
2037 To try the 32-bit x86 assembler implementation, use Configure
2038 option "enable-montasm" (which exists only for this backport).
2040 As "enable-montasm" for 32-bit x86 disclaims code stability
2041 anyway, in this constellation we activate additional code
2042 backported from 0.9.9-dev for further performance improvements,
2043 namely BN_from_montgomery_word. (To enable this otherwise,
2044 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2046 [Andy Polyakov (backport partially by Bodo Moeller)]
2048 *) Add TLS session ticket callback. This allows an application to set
2049 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2050 values. This is useful for key rollover for example where several key
2051 sets may exist with different names.
2054 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2055 This was broken until now in 0.9.8 releases, such that the only way
2056 a registered ENGINE could be used (assuming it initialises
2057 successfully on the host) was to explicitly set it as the default
2058 for the relevant algorithms. This is in contradiction with 0.9.7
2059 behaviour and the documentation. With this fix, when an ENGINE is
2060 registered into a given algorithm's table of implementations, the
2061 'uptodate' flag is reset so that auto-discovery will be used next
2062 time a new context for that algorithm attempts to select an
2064 [Ian Lister (tweaked by Geoff Thorpe)]
2066 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2067 implemention in the following ways:
2069 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2072 Lack of BER streaming support means one pass streaming processing is
2073 only supported if data is detached: setting the streaming flag is
2074 ignored for embedded content.
2076 CMS support is disabled by default and must be explicitly enabled
2077 with the enable-cms configuration option.
2080 *) Update the GMP engine glue to do direct copies between BIGNUM and
2081 mpz_t when openssl and GMP use the same limb size. Otherwise the
2082 existing "conversion via a text string export" trick is still used.
2083 [Paul Sheer <paulsheer@gmail.com>]
2085 *) Zlib compression BIO. This is a filter BIO which compressed and
2086 uncompresses any data passed through it.
2089 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2090 RFC3394 compatible AES key wrapping.
2093 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2094 sets string data without copying. X509_ALGOR_set0() and
2095 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2096 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2097 from an X509_ATTRIBUTE structure optionally checking it occurs only
2098 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2102 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2103 to get the expected BN_FLG_CONSTTIME behavior.
2104 [Bodo Moeller (Google)]
2108 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2109 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2110 - added some more tests to do_tests.pl
2111 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2112 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2113 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2114 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2115 - various changes to netware.pl to enable gcc-cross builds on Win32
2117 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2118 - various changes to fix missing prototype warnings
2119 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2120 - added AES, WHIRLPOOL and CPUID assembler code to build files
2121 - added missing AES assembler make rules to mk1mf.pl
2122 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2123 [Guenter Knauf <eflash@gmx.net>]
2125 *) Implement certificate status request TLS extension defined in RFC3546.
2126 A client can set the appropriate parameters and receive the encoded
2127 OCSP response via a callback. A server can query the supplied parameters
2128 and set the encoded OCSP response in the callback. Add simplified examples
2129 to s_client and s_server.
2132 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2134 *) Fix various bugs:
2135 + Binary incompatibility of ssl_ctx_st structure
2136 + DTLS interoperation with non-compliant servers
2137 + Don't call get_session_cb() without proposed session
2138 + Fix ia64 assembler code
2139 [Andy Polyakov, Steve Henson]
2141 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2143 *) DTLS Handshake overhaul. There were longstanding issues with
2144 OpenSSL DTLS implementation, which were making it impossible for
2145 RFC 4347 compliant client to communicate with OpenSSL server.
2146 Unfortunately just fixing these incompatibilities would "cut off"
2147 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2148 server keeps tolerating non RFC compliant syntax. The opposite is
2149 not true, 0.9.8f client can not communicate with earlier server.
2150 This update even addresses CVE-2007-4995.
2153 *) Changes to avoid need for function casts in OpenSSL: some compilers
2154 (gcc 4.2 and later) reject their use.
2155 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2158 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2159 RFC4507bis. The encrypted ticket format is an encrypted encoded
2160 SSL_SESSION structure, that way new session features are automatically
2163 If a client application caches session in an SSL_SESSION structure
2164 support is transparent because tickets are now stored in the encoded
2167 The SSL_CTX structure automatically generates keys for ticket
2168 protection in servers so again support should be possible
2169 with no application modification.
2171 If a client or server wishes to disable RFC4507 support then the option
2172 SSL_OP_NO_TICKET can be set.
2174 Add a TLS extension debugging callback to allow the contents of any client
2175 or server extensions to be examined.
2177 This work was sponsored by Google.
2180 *) Add initial support for TLS extensions, specifically for the server_name
2181 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2182 have new members for a host name. The SSL data structure has an
2183 additional member SSL_CTX *initial_ctx so that new sessions can be
2184 stored in that context to allow for session resumption, even after the
2185 SSL has been switched to a new SSL_CTX in reaction to a client's
2186 server_name extension.
2188 New functions (subject to change):
2190 SSL_get_servername()
2191 SSL_get_servername_type()
2194 New CTRL codes and macros (subject to change):
2196 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2197 - SSL_CTX_set_tlsext_servername_callback()
2198 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2199 - SSL_CTX_set_tlsext_servername_arg()
2200 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2202 openssl s_client has a new '-servername ...' option.
2204 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2205 '-key2 ...', '-servername_fatal' (subject to change). This allows
2206 testing the HostName extension for a specific single host name ('-cert'
2207 and '-key' remain fallbacks for handshakes without HostName
2208 negotiation). If the unrecogninzed_name alert has to be sent, this by
2209 default is a warning; it becomes fatal with the '-servername_fatal'
2212 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2214 *) Add AES and SSE2 assembly language support to VC++ build.
2217 *) Mitigate attack on final subtraction in Montgomery reduction.
2220 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2221 (which previously caused an internal error).
2224 *) Squeeze another 10% out of IGE mode when in != out.
2227 *) AES IGE mode speedup.
2228 [Dean Gaudet (Google)]
2230 *) Add the Korean symmetric 128-bit cipher SEED (see
2231 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2232 add SEED ciphersuites from RFC 4162:
2234 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2235 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2236 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2237 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2239 To minimize changes between patchlevels in the OpenSSL 0.9.8
2240 series, SEED remains excluded from compilation unless OpenSSL
2241 is configured with 'enable-seed'.
2242 [KISA, Bodo Moeller]
2244 *) Mitigate branch prediction attacks, which can be practical if a
2245 single processor is shared, allowing a spy process to extract
2246 information. For detailed background information, see
2247 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2248 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2249 and Necessary Software Countermeasures"). The core of the change
2250 are new versions BN_div_no_branch() and
2251 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2252 respectively, which are slower, but avoid the security-relevant
2253 conditional branches. These are automatically called by BN_div()
2254 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2255 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2256 remove a conditional branch.
2258 BN_FLG_CONSTTIME is the new name for the previous
2259 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2260 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2261 in the exponent causes BN_mod_exp_mont() to use the alternative
2262 implementation in BN_mod_exp_mont_consttime().) The old name
2263 remains as a deprecated alias.
2265 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2266 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2267 constant-time implementations for more than just exponentiation.
2268 Here too the old name is kept as a deprecated alias.
2270 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2271 the BN_BLINDING structure gets an independent copy of the
2272 modulus. This means that the previous "BIGNUM *m" argument to
2273 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2274 essentially becomes "const BIGNUM *m", although we can't actually
2275 change this in the header file before 0.9.9. It allows
2276 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2277 enable BN_FLG_CONSTTIME.
2279 [Matthew D Wood (Intel Corp)]
2281 *) In the SSL/TLS server implementation, be strict about session ID
2282 context matching (which matters if an application uses a single
2283 external cache for different purposes). Previously,
2284 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2285 set. This did ensure strict client verification, but meant that,
2286 with applications using a single external cache for quite
2287 different requirements, clients could circumvent ciphersuite
2288 restrictions for a given session ID context by starting a session
2289 in a different context.
2292 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2293 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2294 authentication-only ciphersuites.
2297 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2298 not complete and could lead to a possible single byte overflow
2299 (CVE-2007-5135) [Ben Laurie]
2301 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2303 *) Since AES128 and AES256 (and similarly Camellia128 and
2304 Camellia256) share a single mask bit in the logic of
2305 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2306 kludge to work properly if AES128 is available and AES256 isn't
2307 (or if Camellia128 is available and Camellia256 isn't).
2310 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2311 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2312 When a point or a seed is encoded in a BIT STRING, we need to
2313 prevent the removal of trailing zero bits to get the proper DER
2314 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2315 of a NamedBitList, for which trailing 0 bits need to be removed.)
2318 *) Have SSL/TLS server implementation tolerate "mismatched" record
2319 protocol version while receiving ClientHello even if the
2320 ClientHello is fragmented. (The server can't insist on the
2321 particular protocol version it has chosen before the ServerHello
2322 message has informed the client about his choice.)
2325 *) Add RFC 3779 support.
2326 [Rob Austein for ARIN, Ben Laurie]
2328 *) Load error codes if they are not already present instead of using a
2329 static variable. This allows them to be cleanly unloaded and reloaded.
2330 Improve header file function name parsing.
2333 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2334 or CAPABILITY handshake as required by RFCs.
2337 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2339 *) Introduce limits to prevent malicious keys being able to
2340 cause a denial of service. (CVE-2006-2940)
2341 [Steve Henson, Bodo Moeller]
2343 *) Fix ASN.1 parsing of certain invalid structures that can result
2344 in a denial of service. (CVE-2006-2937) [Steve Henson]
2346 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2347 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2349 *) Fix SSL client code which could crash if connecting to a
2350 malicious SSLv2 server. (CVE-2006-4343)
2351 [Tavis Ormandy and Will Drewry, Google Security Team]
2353 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2354 match only those. Before that, "AES256-SHA" would be interpreted
2355 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2356 the same strength classification in 0.9.7h) as we currently only
2357 have a single AES bit in the ciphersuite description bitmap.
2358 That change, however, also applied to ciphersuite strings such as
2359 "RC4-MD5" that intentionally matched multiple ciphersuites --
2360 namely, SSL 2.0 ciphersuites in addition to the more common ones
2361 from SSL 3.0/TLS 1.0.
2363 So we change the selection algorithm again: Naming an explicit
2364 ciphersuite selects this one ciphersuite, and any other similar
2365 ciphersuite (same bitmap) from *other* protocol versions.
2366 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2367 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2369 Since SSL 2.0 does not have any ciphersuites for which the
2370 128/256 bit distinction would be relevant, this works for now.
2371 The proper fix will be to use different bits for AES128 and
2372 AES256, which would have avoided the problems from the beginning;
2373 however, bits are scarce, so we can only do this in a new release
2374 (not just a patchlevel) when we can change the SSL_CIPHER
2375 definition to split the single 'unsigned long mask' bitmap into
2376 multiple values to extend the available space.
2380 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2382 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2383 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2385 *) Add AES IGE and biIGE modes.
2388 *) Change the Unix randomness entropy gathering to use poll() when
2389 possible instead of select(), since the latter has some
2390 undesirable limitations.
2391 [Darryl Miles via Richard Levitte and Bodo Moeller]
2393 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2394 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2395 cannot be implicitly activated as part of, e.g., the "AES" alias.
2396 However, please upgrade to OpenSSL 0.9.9[-dev] for
2397 non-experimental use of the ECC ciphersuites to get TLS extension
2398 support, which is required for curve and point format negotiation
2399 to avoid potential handshake problems.
2402 *) Disable rogue ciphersuites:
2404 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2405 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2406 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2408 The latter two were purportedly from
2409 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2412 Also deactivate the remaining ciphersuites from
2413 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2414 unofficial, and the ID has long expired.
2417 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2418 dual-core machines) and other potential thread-safety issues.
2421 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2422 versions), which is now available for royalty-free use
2423 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2424 Also, add Camellia TLS ciphersuites from RFC 4132.
2426 To minimize changes between patchlevels in the OpenSSL 0.9.8
2427 series, Camellia remains excluded from compilation unless OpenSSL
2428 is configured with 'enable-camellia'.
2431 *) Disable the padding bug check when compression is in use. The padding
2432 bug check assumes the first packet is of even length, this is not
2433 necessarily true if compresssion is enabled and can result in false
2434 positives causing handshake failure. The actual bug test is ancient
2435 code so it is hoped that implementations will either have fixed it by
2436 now or any which still have the bug do not support compression.
2439 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2441 *) When applying a cipher rule check to see if string match is an explicit
2442 cipher suite and only match that one cipher suite if it is.
2445 *) Link in manifests for VC++ if needed.
2446 [Austin Ziegler <halostatue@gmail.com>]
2448 *) Update support for ECC-based TLS ciphersuites according to
2449 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2450 TLS extensions, which are supported starting with the 0.9.9
2451 branch, not in the OpenSSL 0.9.8 branch).
2454 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2455 opaque EVP_CIPHER_CTX handling.
2458 *) Fixes and enhancements to zlib compression code. We now only use
2459 "zlib1.dll" and use the default __cdecl calling convention on Win32
2460 to conform with the standards mentioned here:
2461 http://www.zlib.net/DLL_FAQ.txt
2462 Static zlib linking now works on Windows and the new --with-zlib-include
2463 --with-zlib-lib options to Configure can be used to supply the location
2464 of the headers and library. Gracefully handle case where zlib library
2468 *) Several fixes and enhancements to the OID generation code. The old code
2469 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2470 handle numbers larger than ULONG_MAX, truncated printing and had a
2471 non standard OBJ_obj2txt() behaviour.
2474 *) Add support for building of engines under engine/ as shared libraries
2475 under VC++ build system.
2478 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2479 Hopefully, we will not see any false combination of paths any more.
2482 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2484 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2485 (part of SSL_OP_ALL). This option used to disable the
2486 countermeasure against man-in-the-middle protocol-version
2487 rollback in the SSL 2.0 server implementation, which is a bad
2488 idea. (CVE-2005-2969)
2490 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2491 for Information Security, National Institute of Advanced Industrial
2492 Science and Technology [AIST], Japan)]
2494 *) Add two function to clear and return the verify parameter flags.
2497 *) Keep cipherlists sorted in the source instead of sorting them at
2498 runtime, thus removing the need for a lock.
2501 *) Avoid some small subgroup attacks in Diffie-Hellman.
2502 [Nick Mathewson and Ben Laurie]
2504 *) Add functions for well-known primes.
2507 *) Extended Windows CE support.
2508 [Satoshi Nakamura and Andy Polyakov]
2510 *) Initialize SSL_METHOD structures at compile time instead of during
2511 runtime, thus removing the need for a lock.
2514 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2515 attempting to decrypt each encrypted key in turn. Add support to
2519 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2521 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2524 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2527 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2528 key into the same file any more.
2531 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2534 *) Add -utf8 command line and config file option to 'ca'.
2535 [Stefan <stf@udoma.org]
2537 *) Removed the macro des_crypt(), as it seems to conflict with some
2538 libraries. Use DES_crypt().
2541 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2542 involves renaming the source and generated shared-libs for
2543 both. The engines will accept the corrected or legacy ids
2544 ('ncipher' and '4758_cca' respectively) when binding. NB,
2545 this only applies when building 'shared'.
2546 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2548 *) Add attribute functions to EVP_PKEY structure. Modify
2549 PKCS12_create() to recognize a CSP name attribute and
2550 use it. Make -CSP option work again in pkcs12 utility.
2553 *) Add new functionality to the bn blinding code:
2554 - automatic re-creation of the BN_BLINDING parameters after
2555 a fixed number of uses (currently 32)
2556 - add new function for parameter creation
2557 - introduce flags to control the update behaviour of the
2558 BN_BLINDING parameters
2559 - hide BN_BLINDING structure
2560 Add a second BN_BLINDING slot to the RSA structure to improve
2561 performance when a single RSA object is shared among several
2565 *) Add support for DTLS.
2566 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2568 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2569 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2572 *) Remove buggy and incompletet DH cert support from
2573 ssl/ssl_rsa.c and ssl/s3_both.c
2576 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2577 the apps/openssl applications.
2580 *) Compile clean with "-Wall -Wmissing-prototypes
2581 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2582 DEBUG_SAFESTACK must also be set.
2585 *) Change ./Configure so that certain algorithms can be disabled by default.
2586 The new counterpiece to "no-xxx" is "enable-xxx".
2588 The patented RC5 and MDC2 algorithms will now be disabled unless
2589 "enable-rc5" and "enable-mdc2", respectively, are specified.
2591 (IDEA remains enabled despite being patented. This is because IDEA
2592 is frequently required for interoperability, and there is no license
2593 fee for non-commercial use. As before, "no-idea" can be used to
2594 avoid this algorithm.)
2598 *) Add processing of proxy certificates (see RFC 3820). This work was
2599 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2600 EGEE (Enabling Grids for E-science in Europe).
2603 *) RC4 performance overhaul on modern architectures/implementations, such
2604 as Intel P4, IA-64 and AMD64.
2607 *) New utility extract-section.pl. This can be used specify an alternative
2608 section number in a pod file instead of having to treat each file as
2609 a separate case in Makefile. This can be done by adding two lines to the
2612 =for comment openssl_section:XXX
2614 The blank line is mandatory.
2618 *) New arguments -certform, -keyform and -pass for s_client and s_server
2619 to allow alternative format key and certificate files and passphrase
2623 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2624 update associated structures and add various utility functions.
2626 Add new policy related verify parameters, include policy checking in
2627 standard verify code. Enhance 'smime' application with extra parameters
2628 to support policy checking and print out.
2631 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2632 Nehemiah processors. These extensions support AES encryption in hardware
2633 as well as RNG (though RNG support is currently disabled).
2634 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2636 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2639 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2640 [Andy Polyakov and a number of other people]
2642 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2643 implementation contributed by IBM.
2644 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2646 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2647 exponent rather than 'unsigned long'. There is a corresponding change to
2648 the new 'rsa_keygen' element of the RSA_METHOD structure.
2649 [Jelte Jansen, Geoff Thorpe]
2651 *) Functionality for creating the initial serial number file is now
2652 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2654 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2655 number file to 1, which is bound to cause problems. To avoid
2656 the problems while respecting compatibility between different 0.9.7
2657 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2658 CA.pl for serial number initialization. With the new release 0.9.8,
2659 we can fix the problem directly in the 'ca' utility.)
2662 *) Reduced header interdepencies by declaring more opaque objects in
2663 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2664 give fewer recursive includes, which could break lazy source code - so
2665 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2666 developers should define this symbol when building and using openssl to
2667 ensure they track the recommended behaviour, interfaces, [etc], but
2668 backwards-compatible behaviour prevails when this isn't defined.
2671 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2674 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2675 This will generate a random key of the appropriate length based on the
2676 cipher context. The EVP_CIPHER can provide its own random key generation
2677 routine to support keys of a specific form. This is used in the des and
2678 3des routines to generate a key of the correct parity. Update S/MIME
2679 code to use new functions and hence generate correct parity DES keys.
2680 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2681 valid (weak or incorrect parity).
2684 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2685 as looking them up. This is useful when the verified structure may contain
2686 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2687 present unless the new PKCS7_NO_CRL flag is asserted.
2690 *) Extend ASN1 oid configuration module. It now additionally accepts the
2693 shortName = some long name, 1.2.3.4
2696 *) Reimplemented the BN_CTX implementation. There is now no more static
2697 limitation on the number of variables it can handle nor the depth of the
2698 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2699 information can now expand as required, and rather than having a single
2700 static array of bignums, BN_CTX now uses a linked-list of such arrays
2701 allowing it to expand on demand whilst maintaining the usefulness of
2702 BN_CTX's "bundling".
2705 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2706 to allow all RSA operations to function using a single BN_CTX.
2709 *) Preliminary support for certificate policy evaluation and checking. This
2710 is initially intended to pass the tests outlined in "Conformance Testing
2711 of Relying Party Client Certificate Path Processing Logic" v1.07.
2714 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2715 remained unused and not that useful. A variety of other little bignum
2716 tweaks and fixes have also been made continuing on from the audit (see
2720 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2721 associated ASN1, EVP and SSL functions and old ASN1 macros.
2724 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2725 and this should never fail. So the return value from the use of
2726 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2727 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2730 *) BN_CTX_get() should return zero-valued bignums, providing the same
2731 initialised value as BN_new().
2732 [Geoff Thorpe, suggested by Ulf Möller]
2734 *) Support for inhibitAnyPolicy certificate extension.
2737 *) An audit of the BIGNUM code is underway, for which debugging code is
2738 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2739 is considered valid when processing BIGNUMs, and causes execution to
2740 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2741 further steps are taken to deliberately pollute unused data in BIGNUM
2742 structures to try and expose faulty code further on. For now, openssl will
2743 (in its default mode of operation) continue to tolerate the inconsistent
2744 forms that it has tolerated in the past, but authors and packagers should
2745 consider trying openssl and their own applications when compiled with
2746 these debugging symbols defined. It will help highlight potential bugs in
2747 their own code, and will improve the test coverage for OpenSSL itself. At
2748 some point, these tighter rules will become openssl's default to improve
2749 maintainability, though the assert()s and other overheads will remain only
2750 in debugging configurations. See bn.h for more details.
2751 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2753 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2754 that can only be obtained through BN_CTX_new() (which implicitly
2755 initialises it). The presence of this function only made it possible
2756 to overwrite an existing structure (and cause memory leaks).
2759 *) Because of the callback-based approach for implementing LHASH as a
2760 template type, lh_insert() adds opaque objects to hash-tables and
2761 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2762 to clean up those corresponding objects before destroying the hash table
2763 (and losing the object pointers). So some over-zealous constifications in
2764 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2765 objects as "const" and the lh_doall[_arg] callback wrappers are not
2766 prototyped to have "const" restrictions on the object pointers they are
2767 given (and so aren't required to cast them away any more).
2770 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2771 (speed) prefers to use its own implementation. The two implementations
2772 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2773 its object type properly exposed (MS_TM) instead of casting to/from "char
2774 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2775 aren't necessarily the greatest nomenclatures - but this is what was used
2776 internally to the implementation so I've used that for now.
2779 *) Ensure that deprecated functions do not get compiled when
2780 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2781 the self-tests were still using deprecated key-generation functions so
2782 these have been updated also.
2785 *) Reorganise PKCS#7 code to separate the digest location functionality
2786 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2787 New function PKCS7_set_digest() to set the digest type for PKCS#7
2788 digestedData type. Add additional code to correctly generate the
2789 digestedData type and add support for this type in PKCS7 initialization
2793 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2794 structure of type "other".
2797 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2798 sure the loop does correctly stop and breaking ("division by zero")
2799 modulus operations are not performed. The (pre-generated) prime
2800 table crypto/bn/bn_prime.h was already correct, but it could not be
2801 re-generated on some platforms because of the "division by zero"
2802 situation in the script.
2803 [Ralf S. Engelschall]
2805 *) Update support for ECC-based TLS ciphersuites according to
2806 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2807 SHA-1 now is only used for "small" curves (where the
2808 representation of a field element takes up to 24 bytes); for
2809 larger curves, the field element resulting from ECDH is directly
2810 used as premaster secret.
2811 [Douglas Stebila (Sun Microsystems Laboratories)]
2813 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2814 curve secp160r1 to the tests.
2815 [Douglas Stebila (Sun Microsystems Laboratories)]
2817 *) Add the possibility to load symbols globally with DSO.
2818 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2820 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2821 control of the error stack.
2824 *) Add support for STORE in ENGINE.
2827 *) Add the STORE type. The intention is to provide a common interface
2828 to certificate and key stores, be they simple file-based stores, or
2829 HSM-type store, or LDAP stores, or...
2830 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2833 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2834 pass a list of arguments to any function as well as provide a way
2835 for a function to pass data back to the caller.
2838 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2839 works like BUF_strdup() but can be used to duplicate a portion of
2840 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2844 *) Add the function sk_find_ex() which works like sk_find(), but will
2845 return an index to an element even if an exact match couldn't be
2846 found. The index is guaranteed to point at the element where the
2847 searched-for key would be inserted to preserve sorting order.
2850 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2851 takes an extra flags argument for optional functionality. Currently,
2852 the following flags are defined:
2854 OBJ_BSEARCH_VALUE_ON_NOMATCH
2855 This one gets OBJ_bsearch_ex() to return a pointer to the first
2856 element where the comparing function returns a negative or zero
2859 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2860 This one gets OBJ_bsearch_ex() to return a pointer to the first
2861 element where the comparing function returns zero. This is useful
2862 if there are more than one element where the comparing function
2866 *) Make it possible to create self-signed certificates with 'openssl ca'
2867 in such a way that the self-signed certificate becomes part of the
2868 CA database and uses the same mechanisms for serial number generation
2869 as all other certificate signing. The new flag '-selfsign' enables
2870 this functionality. Adapt CA.sh and CA.pl.in.
2873 *) Add functionality to check the public key of a certificate request
2874 against a given private. This is useful to check that a certificate
2875 request can be signed by that key (self-signing).
2878 *) Make it possible to have multiple active certificates with the same
2879 subject in the CA index file. This is done only if the keyword
2880 'unique_subject' is set to 'no' in the main CA section (default
2881 if 'CA_default') of the configuration file. The value is saved
2882 with the database itself in a separate index attribute file,
2883 named like the index file with '.attr' appended to the name.
2886 *) Generate muti valued AVAs using '+' notation in config files for
2890 *) Support for nameConstraints certificate extension.
2893 *) Support for policyConstraints certificate extension.
2896 *) Support for policyMappings certificate extension.
2899 *) Make sure the default DSA_METHOD implementation only uses its
2900 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2901 and change its own handlers to be NULL so as to remove unnecessary
2902 indirection. This lets alternative implementations fallback to the
2903 default implementation more easily.
2906 *) Support for directoryName in GeneralName related extensions
2910 *) Make it possible to link applications using Makefile.shared.
2911 Make that possible even when linking against static libraries!
2914 *) Support for single pass processing for S/MIME signing. This now
2915 means that S/MIME signing can be done from a pipe, in addition
2916 cleartext signing (multipart/signed type) is effectively streaming
2917 and the signed data does not need to be all held in memory.
2919 This is done with a new flag PKCS7_STREAM. When this flag is set
2920 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2921 is done after the data is output (and digests calculated) in
2922 SMIME_write_PKCS7().
2925 *) Add full support for -rpath/-R, both in shared libraries and
2926 applications, at least on the platforms where it's known how
2930 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2931 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2932 will now compute a table of multiples of the generator that
2933 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2934 faster (notably in the case of a single point multiplication,
2935 scalar * generator).
2936 [Nils Larsch, Bodo Moeller]
2938 *) IPv6 support for certificate extensions. The various extensions
2939 which use the IP:a.b.c.d can now take IPv6 addresses using the
2940 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2944 *) Added an ENGINE that implements RSA by performing private key
2945 exponentiations with the GMP library. The conversions to and from
2946 GMP's mpz_t format aren't optimised nor are any montgomery forms
2947 cached, and on x86 it appears OpenSSL's own performance has caught up.
2948 However there are likely to be other architectures where GMP could
2949 provide a boost. This ENGINE is not built in by default, but it can be
2950 specified at Configure time and should be accompanied by the necessary
2951 linker additions, eg;
2952 ./config -DOPENSSL_USE_GMP -lgmp
2955 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2956 testing availability of engines with "-t" - the old behaviour is
2957 produced by increasing the feature's verbosity with "-tt".
2960 *) ECDSA routines: under certain error conditions uninitialized BN objects
2961 could be freed. Solution: make sure initialization is performed early
2962 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2966 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2967 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2968 software implementations. For DSA and DH, parameter generation can
2969 also be overriden by providing the appropriate method callbacks.
2972 *) Change the "progress" mechanism used in key-generation and
2973 primality testing to functions that take a new BN_GENCB pointer in
2974 place of callback/argument pairs. The new API functions have "_ex"
2975 postfixes and the older functions are reimplemented as wrappers for
2976 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2977 declarations of the old functions to help (graceful) attempts to
2978 migrate to the new functions. Also, the new key-generation API
2979 functions operate on a caller-supplied key-structure and return
2980 success/failure rather than returning a key or NULL - this is to
2981 help make "keygen" another member function of RSA_METHOD etc.
2983 Example for using the new callback interface:
2985 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2989 BN_GENCB_set(&my_cb, my_callback, my_arg);
2991 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2992 /* For the meaning of a, b in calls to my_callback(), see the
2993 * documentation of the function that calls the callback.
2994 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2995 * my_callback should return 1 if it wants BN_is_prime_ex()
2996 * to continue, or 0 to stop.
3001 *) Change the ZLIB compression method to be stateful, and make it
3002 available to TLS with the number defined in
3003 draft-ietf-tls-compression-04.txt.
3006 *) Add the ASN.1 structures and functions for CertificatePair, which
3007 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3009 CertificatePair ::= SEQUENCE {
3010 forward [0] Certificate OPTIONAL,
3011 reverse [1] Certificate OPTIONAL,
3012 -- at least one of the pair shall be present -- }
3014 Also implement the PEM functions to read and write certificate
3015 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3017 This needed to be defined, mostly for the sake of the LDAP
3018 attribute crossCertificatePair, but may prove useful elsewhere as
3022 *) Make it possible to inhibit symlinking of shared libraries in
3023 Makefile.shared, for Cygwin's sake.
3026 *) Extend the BIGNUM API by creating a function
3027 void BN_set_negative(BIGNUM *a, int neg);
3028 and a macro that behave like
3029 int BN_is_negative(const BIGNUM *a);
3031 to avoid the need to access 'a->neg' directly in applications.
3034 *) Implement fast modular reduction for pseudo-Mersenne primes
3035 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3036 EC_GROUP_new_curve_GFp() will now automatically use this
3038 [Nils Larsch <nla@trustcenter.de>]
3040 *) Add new lock type (CRYPTO_LOCK_BN).
3043 *) Change the ENGINE framework to automatically load engines
3044 dynamically from specific directories unless they could be
3045 found to already be built in or loaded. Move all the
3046 current engines except for the cryptodev one to a new
3048 The engines in engines/ are built as shared libraries if
3049 the "shared" options was given to ./Configure or ./config.
3050 Otherwise, they are inserted in libcrypto.a.
3051 /usr/local/ssl/engines is the default directory for dynamic
3052 engines, but that can be overriden at configure time through
3053 the usual use of --prefix and/or --openssldir, and at run
3054 time with the environment variable OPENSSL_ENGINES.
3055 [Geoff Thorpe and Richard Levitte]
3057 *) Add Makefile.shared, a helper makefile to build shared
3058 libraries. Addapt Makefile.org.
3061 *) Add version info to Win32 DLLs.
3062 [Peter 'Luna' Runestig" <peter@runestig.com>]
3064 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3065 can be added using this API to created arbitrary PKCS#12
3066 files while avoiding the low level API.
3068 New options to PKCS12_create(), key or cert can be NULL and
3069 will then be omitted from the output file. The encryption
3070 algorithm NIDs can be set to -1 for no encryption, the mac
3071 iteration count can be set to 0 to omit the mac.
3073 Enhance pkcs12 utility by making the -nokeys and -nocerts
3074 options work when creating a PKCS#12 file. New option -nomac
3075 to omit the mac, NONE can be set for an encryption algorithm.
3076 New code is modified to use the enhanced PKCS12_create()
3077 instead of the low level API.
3080 *) Extend ASN1 encoder to support indefinite length constructed
3081 encoding. This can output sequences tags and octet strings in
3082 this form. Modify pk7_asn1.c to support indefinite length
3083 encoding. This is experimental and needs additional code to
3084 be useful, such as an ASN1 bio and some enhanced streaming
3087 Extend template encode functionality so that tagging is passed
3088 down to the template encoder.
3091 *) Let 'openssl req' fail if an argument to '-newkey' is not
3092 recognized instead of using RSA as a default.
3095 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3096 As these are not official, they are not included in "ALL";
3097 the "ECCdraft" ciphersuite group alias can be used to select them.
3098 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3100 *) Add ECDH engine support.
3101 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3103 *) Add ECDH in new directory crypto/ecdh/.
3104 [Douglas Stebila (Sun Microsystems Laboratories)]
3106 *) Let BN_rand_range() abort with an error after 100 iterations
3107 without success (which indicates a broken PRNG).
3110 *) Change BN_mod_sqrt() so that it verifies that the input value
3111 is really the square of the return value. (Previously,
3112 BN_mod_sqrt would show GIGO behaviour.)
3115 *) Add named elliptic curves over binary fields from X9.62, SECG,
3116 and WAP/WTLS; add OIDs that were still missing.
3118 [Sheueling Chang Shantz and Douglas Stebila
3119 (Sun Microsystems Laboratories)]
3121 *) Extend the EC library for elliptic curves over binary fields
3122 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3125 EC_GF2m_simple_method
3129 EC_GROUP_new_curve_GF2m
3130 EC_GROUP_set_curve_GF2m
3131 EC_GROUP_get_curve_GF2m
3132 EC_POINT_set_affine_coordinates_GF2m
3133 EC_POINT_get_affine_coordinates_GF2m
3134 EC_POINT_set_compressed_coordinates_GF2m
3136 Point compression for binary fields is disabled by default for
3137 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3140 As binary polynomials are represented as BIGNUMs, various members
3141 of the EC_GROUP and EC_POINT data structures can be shared
3142 between the implementations for prime fields and binary fields;
3143 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3144 are essentially identical to their ..._GFp counterparts.
3145 (For simplicity, the '..._GFp' prefix has been dropped from
3146 various internal method names.)
3148 An internal 'field_div' method (similar to 'field_mul' and
3149 'field_sqr') has been added; this is used only for binary fields.
3151 [Sheueling Chang Shantz and Douglas Stebila
3152 (Sun Microsystems Laboratories)]
3154 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3155 through methods ('mul', 'precompute_mult').
3157 The generic implementations (now internally called 'ec_wNAF_mul'
3158 and 'ec_wNAF_precomputed_mult') remain the default if these
3159 methods are undefined.
3161 [Sheueling Chang Shantz and Douglas Stebila
3162 (Sun Microsystems Laboratories)]
3164 *) New function EC_GROUP_get_degree, which is defined through
3165 EC_METHOD. For curves over prime fields, this returns the bit
3166 length of the modulus.
3168 [Sheueling Chang Shantz and Douglas Stebila
3169 (Sun Microsystems Laboratories)]
3171 *) New functions EC_GROUP_dup, EC_POINT_dup.
3172 (These simply call ..._new and ..._copy).
3174 [Sheueling Chang Shantz and Douglas Stebila
3175 (Sun Microsystems Laboratories)]
3177 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3178 Polynomials are represented as BIGNUMs (where the sign bit is not
3179 used) in the following functions [macros]:
3182 BN_GF2m_sub [= BN_GF2m_add]
3183 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3184 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3185 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3187 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3188 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3189 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3190 BN_GF2m_cmp [= BN_ucmp]
3192 (Note that only the 'mod' functions are actually for fields GF(2^m).
3193 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3195 For some functions, an the irreducible polynomial defining a
3196 field can be given as an 'unsigned int[]' with strictly
3197 decreasing elements giving the indices of those bits that are set;
3198 i.e., p[] represents the polynomial
3199 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3201 p[0] > p[1] > ... > p[k] = 0.
3202 This applies to the following functions:
3207 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3208 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3210 BN_GF2m_mod_sqrt_arr
3211 BN_GF2m_mod_solve_quad_arr
3215 Conversion can be performed by the following functions:
3220 bntest.c has additional tests for binary polynomial arithmetic.
3222 Two implementations for BN_GF2m_mod_div() are available.
3223 The default algorithm simply uses BN_GF2m_mod_inv() and
3224 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3225 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3226 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3228 [Sheueling Chang Shantz and Douglas Stebila
3229 (Sun Microsystems Laboratories)]
3231 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3232 functionality is disabled at compile-time.
3233 [Douglas Stebila <douglas.stebila@sun.com>]
3235 *) Change default behaviour of 'openssl asn1parse' so that more
3236 information is visible when viewing, e.g., a certificate:
3238 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3239 mode the content of non-printable OCTET STRINGs is output in a
3240 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3241 avoid the appearance of a printable string.
3242 [Nils Larsch <nla@trustcenter.de>]
3244 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3246 EC_GROUP_set_asn1_flag()
3247 EC_GROUP_get_asn1_flag()
3248 EC_GROUP_set_point_conversion_form()
3249 EC_GROUP_get_point_conversion_form()
3250 These control ASN1 encoding details:
3251 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3252 has been set to OPENSSL_EC_NAMED_CURVE.
3253 - Points are encoded in uncompressed form by default; options for
3254 asn1_for are as for point2oct, namely
3255 POINT_CONVERSION_COMPRESSED
3256 POINT_CONVERSION_UNCOMPRESSED
3257 POINT_CONVERSION_HYBRID
3259 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3262 EC_GROUP_get0_seed()
3263 EC_GROUP_get_seed_len()
3264 This is used only for ASN1 purposes (so far).
3265 [Nils Larsch <nla@trustcenter.de>]
3267 *) Add 'field_type' member to EC_METHOD, which holds the NID
3268 of the appropriate field type OID. The new function
3269 EC_METHOD_get_field_type() returns this value.
3270 [Nils Larsch <nla@trustcenter.de>]
3275 EC_POINT_point2hex()
3276 EC_POINT_hex2point()
3277 providing useful interfaces to EC_POINT_point2oct() and
3278 EC_POINT_oct2point().
3279 [Nils Larsch <nla@trustcenter.de>]
3281 *) Change internals of the EC library so that the functions
3282 EC_GROUP_set_generator()
3283 EC_GROUP_get_generator()
3284 EC_GROUP_get_order()
3285 EC_GROUP_get_cofactor()
3286 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3287 to methods, which would lead to unnecessary code duplication when
3288 adding different types of curves.
3289 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3291 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3292 arithmetic, and such that modified wNAFs are generated
3293 (which avoid length expansion in many cases).
3296 *) Add a function EC_GROUP_check_discriminant() (defined via
3297 EC_METHOD) that verifies that the curve discriminant is non-zero.
3299 Add a function EC_GROUP_check() that makes some sanity tests
3300 on a EC_GROUP, its generator and order. This includes
3301 EC_GROUP_check_discriminant().
3302 [Nils Larsch <nla@trustcenter.de>]
3304 *) Add ECDSA in new directory crypto/ecdsa/.
3306 Add applications 'openssl ecparam' and 'openssl ecdsa'
3307 (these are based on 'openssl dsaparam' and 'openssl dsa').
3309 ECDSA support is also included in various other files across the
3310 library. Most notably,
3311 - 'openssl req' now has a '-newkey ecdsa:file' option;
3312 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3313 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3314 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3315 them suitable for ECDSA where domain parameters must be
3316 extracted before the specific public key;
3317 - ECDSA engine support has been added.
3318 [Nils Larsch <nla@trustcenter.de>]
3320 *) Include some named elliptic curves, and add OIDs from X9.62,
3321 SECG, and WAP/WTLS. Each curve can be obtained from the new
3323 EC_GROUP_new_by_curve_name(),
3324 and the list of available named curves can be obtained with
3325 EC_get_builtin_curves().
3326 Also add a 'curve_name' member to EC_GROUP objects, which can be
3328 EC_GROUP_set_curve_name()
3329 EC_GROUP_get_curve_name()
3330 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3332 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3333 was actually never needed) and in BN_mul(). The removal in BN_mul()
3334 required a small change in bn_mul_part_recursive() and the addition
3335 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3336 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3337 bn_sub_words() and bn_add_words() except they take arrays with
3341 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3343 *) Cleanse PEM buffers before freeing them since they may contain
3345 [Benjamin Bennett <ben@psc.edu>]
3347 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3348 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3349 authentication-only ciphersuites.
3352 *) Since AES128 and AES256 share a single mask bit in the logic of
3353 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3354 kludge to work properly if AES128 is available and AES256 isn't.
3357 *) Expand security boundary to match 1.1.1 module.
3360 *) Remove redundant features: hash file source, editing of test vectors
3361 modify fipsld to use external fips_premain.c signature.
3364 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3365 run algorithm test programs.
3368 *) Make algorithm test programs more tolerant of whitespace.
3371 *) Have SSL/TLS server implementation tolerate "mismatched" record
3372 protocol version while receiving ClientHello even if the
3373 ClientHello is fragmented. (The server can't insist on the
3374 particular protocol version it has chosen before the ServerHello
3375 message has informed the client about his choice.)
3378 *) Load error codes if they are not already present instead of using a
3379 static variable. This allows them to be cleanly unloaded and reloaded.
3382 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3384 *) Introduce limits to prevent malicious keys being able to
3385 cause a denial of service. (CVE-2006-2940)
3386 [Steve Henson, Bodo Moeller]
3388 *) Fix ASN.1 parsing of certain invalid structures that can result
3389 in a denial of service. (CVE-2006-2937) [Steve Henson]
3391 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3392 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3394 *) Fix SSL client code which could crash if connecting to a
3395 malicious SSLv2 server. (CVE-2006-4343)
3396 [Tavis Ormandy and Will Drewry, Google Security Team]
3398 *) Change ciphersuite string processing so that an explicit
3399 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3400 will no longer include "AES128-SHA"), and any other similar
3401 ciphersuite (same bitmap) from *other* protocol versions (so that
3402 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3403 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3404 changes from 0.9.8b and 0.9.8d.
3407 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3409 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3410 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3412 *) Change the Unix randomness entropy gathering to use poll() when
3413 possible instead of select(), since the latter has some
3414 undesirable limitations.
3415 [Darryl Miles via Richard Levitte and Bodo Moeller]
3417 *) Disable rogue ciphersuites:
3419 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3420 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3421 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3423 The latter two were purportedly from
3424 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3427 Also deactive the remaining ciphersuites from
3428 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3429 unofficial, and the ID has long expired.
3432 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3433 dual-core machines) and other potential thread-safety issues.
3436 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3438 *) Adapt fipsld and the build system to link against the validated FIPS
3439 module in FIPS mode.
3442 *) Fixes for VC++ 2005 build under Windows.
3445 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3446 from a Windows bash shell such as MSYS. It is autodetected from the
3447 "config" script when run from a VC++ environment. Modify standard VC++
3448 build to use fipscanister.o from the GNU make build.
3451 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3453 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3454 The value now differs depending on if you build for FIPS or not.
3455 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3456 safely run with a non-FIPSed libcrypto, as it may crash because of
3457 the difference induced by this change.
3460 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3462 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3463 (part of SSL_OP_ALL). This option used to disable the
3464 countermeasure against man-in-the-middle protocol-version
3465 rollback in the SSL 2.0 server implementation, which is a bad
3466 idea. (CVE-2005-2969)
3468 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3469 for Information Security, National Institute of Advanced Industrial
3470 Science and Technology [AIST], Japan)]
3472 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3473 mainly for FIPS compliance and not fully integrated at this stage.
3476 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3477 the exponentiation using a fixed-length exponent. (Otherwise,
3478 the information leaked through timing could expose the secret key
3479 after many signatures; cf. Bleichenbacher's attack on DSA with
3483 *) Make a new fixed-window mod_exp implementation the default for
3484 RSA, DSA, and DH private-key operations so that the sequence of
3485 squares and multiplies and the memory access pattern are
3486 independent of the particular secret key. This will mitigate
3487 cache-timing and potential related attacks.
3489 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3490 and this is automatically used by BN_mod_exp_mont() if the new flag
3491 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3492 will use this BN flag for private exponents unless the flag
3493 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3494 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3496 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3498 *) Change the client implementation for SSLv23_method() and
3499 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3500 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3501 (Previously, the SSL 2.0 backwards compatible Client Hello
3502 message format would be used even with SSL_OP_NO_SSLv2.)
3505 *) Add support for smime-type MIME parameter in S/MIME messages which some
3509 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3510 a threadsafe manner. Modify rsa code to use new function and add calls
3511 to dsa and dh code (which had race conditions before).
3514 *) Include the fixed error library code in the C error file definitions
3515 instead of fixing them up at runtime. This keeps the error code
3516 structures constant.
3519 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3521 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3524 *) Fixes for newer kerberos headers. NB: the casts are needed because
3525 the 'length' field is signed on one version and unsigned on another
3526 with no (?) obvious way to tell the difference, without these VC++
3527 complains. Also the "definition" of FAR (blank) is no longer included
3528 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3529 some needed definitions.
3532 *) Undo Cygwin change.
3535 *) Added support for proxy certificates according to RFC 3820.
3536 Because they may be a security thread to unaware applications,
3537 they must be explicitely allowed in run-time. See
3538 docs/HOWTO/proxy_certificates.txt for further information.
3541 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3543 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3544 server and client random values. Previously
3545 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3546 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3548 This change has negligible security impact because:
3550 1. Server and client random values still have 24 bytes of pseudo random
3553 2. Server and client random values are sent in the clear in the initial
3556 3. The master secret is derived using the premaster secret (48 bytes in
3557 size for static RSA ciphersuites) as well as client server and random
3560 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3563 [Stephen Henson, reported by UK NISCC]
3565 *) Use Windows randomness collection on Cygwin.
3568 *) Fix hang in EGD/PRNGD query when communication socket is closed
3569 prematurely by EGD/PRNGD.
3570 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3572 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3575 *) Back-port of selected performance improvements from development
3576 branch, as well as improved support for PowerPC platforms.
3579 *) Add lots of checks for memory allocation failure, error codes to indicate
3580 failure and freeing up memory if a failure occurs.
3581 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3583 *) Add new -passin argument to dgst.
3586 *) Perform some character comparisons of different types in X509_NAME_cmp:
3587 this is needed for some certificates that reencode DNs into UTF8Strings
3588 (in violation of RFC3280) and can't or wont issue name rollover
3592 *) Make an explicit check during certificate validation to see that
3593 the CA setting in each certificate on the chain is correct. As a
3594 side effect always do the following basic checks on extensions,
3595 not just when there's an associated purpose to the check:
3597 - if there is an unhandled critical extension (unless the user
3598 has chosen to ignore this fault)
3599 - if the path length has been exceeded (if one is set at all)
3600 - that certain extensions fit the associated purpose (if one has
3604 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3606 *) Avoid a race condition when CRLs are checked in a multi threaded
3607 environment. This would happen due to the reordering of the revoked
3608 entries during signature checking and serial number lookup. Now the
3609 encoding is cached and the serial number sort performed under a lock.
3610 Add new STACK function sk_is_sorted().
3613 *) Add Delta CRL to the extension code.
3616 *) Various fixes to s3_pkt.c so alerts are sent properly.
3617 [David Holmes <d.holmes@f5.com>]
3619 *) Reduce the chances of duplicate issuer name and serial numbers (in
3620 violation of RFC3280) using the OpenSSL certificate creation utilities.
3621 This is done by creating a random 64 bit value for the initial serial
3622 number when a serial number file is created or when a self signed
3623 certificate is created using 'openssl req -x509'. The initial serial
3624 number file is created using 'openssl x509 -next_serial' in CA.pl
3625 rather than being initialized to 1.
3628 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3630 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3631 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3632 [Joe Orton, Steve Henson]
3634 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3636 [Joe Orton, Steve Henson]
3638 *) Make it possible to have multiple active certificates with the same
3639 subject in the CA index file. This is done only if the keyword
3640 'unique_subject' is set to 'no' in the main CA section (default
3641 if 'CA_default') of the configuration file. The value is saved
3642 with the database itself in a separate index attribute file,
3643 named like the index file with '.attr' appended to the name.
3646 *) X509 verify fixes. Disable broken certificate workarounds when
3647 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3648 keyUsage extension present. Don't accept CRLs with unhandled critical
3649 extensions: since verify currently doesn't process CRL extensions this
3650 rejects a CRL with *any* critical extensions. Add new verify error codes
3654 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3655 A clarification of RFC2560 will require the use of OCTET STRINGs and
3656 some implementations cannot handle the current raw format. Since OpenSSL
3657 copies and compares OCSP nonces as opaque blobs without any attempt at
3658 parsing them this should not create any compatibility issues.
3661 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3662 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3663 this HMAC (and other) operations are several times slower than OpenSSL
3667 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3668 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3670 *) Use the correct content when signing type "other".
3673 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3675 *) Fix various bugs revealed by running the NISCC test suite:
3677 Stop out of bounds reads in the ASN1 code when presented with
3678 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3680 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3682 If verify callback ignores invalid public key errors don't try to check
3683 certificate signature with the NULL public key.
3687 *) New -ignore_err option in ocsp application to stop the server
3688 exiting on the first error in a request.
3691 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3692 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3696 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3697 extra data after the compression methods not only for TLS 1.0
3698 but also for SSL 3.0 (as required by the specification).
3699 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3701 *) Change X509_certificate_type() to mark the key as exported/exportable
3702 when it's 512 *bits* long, not 512 bytes.
3705 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3706 blocks during encryption.
3709 *) Various fixes to base64 BIO and non blocking I/O. On write
3710 flushes were not handled properly if the BIO retried. On read
3711 data was not being buffered properly and had various logic bugs.
3712 This also affects blocking I/O when the data being decoded is a
3716 *) Various S/MIME bugfixes and compatibility changes:
3717 output correct application/pkcs7 MIME type if
3718 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3719 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3720 of files as .eml work). Correctly handle very long lines in MIME
3724 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3726 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3727 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3728 a protocol version number mismatch like a decryption error
3729 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3732 *) Turn on RSA blinding by default in the default implementation
3733 to avoid a timing attack. Applications that don't want it can call
3734 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3735 They would be ill-advised to do so in most cases.
3736 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3738 *) Change RSA blinding code so that it works when the PRNG is not
3739 seeded (in this case, the secret RSA exponent is abused as
3740 an unpredictable seed -- if it is not unpredictable, there
3741 is no point in blinding anyway). Make RSA blinding thread-safe
3742 by remembering the creator's thread ID in rsa->blinding and
3743 having all other threads use local one-time blinding factors
3744 (this requires more computation than sharing rsa->blinding, but
3745 avoids excessive locking; and if an RSA object is not shared
3746 between threads, blinding will still be very fast).
3749 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3750 ENGINE as defaults for all supported algorithms irrespective of
3751 the 'flags' parameter. 'flags' is now honoured, so applications
3752 should make sure they are passing it correctly.
3755 *) Target "mingw" now allows native Windows code to be generated in
3756 the Cygwin environment as well as with the MinGW compiler.
3759 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3761 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3762 via timing by performing a MAC computation even if incorrrect
3763 block cipher padding has been found. This is a countermeasure
3764 against active attacks where the attacker has to distinguish
3765 between bad padding and a MAC verification error. (CVE-2003-0078)
3767 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3768 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3769 Martin Vuagnoux (EPFL, Ilion)]
3771 *) Make the no-err option work as intended. The intention with no-err
3772 is not to have the whole error stack handling routines removed from
3773 libcrypto, it's only intended to remove all the function name and
3774 reason texts, thereby removing some of the footprint that may not
3775 be interesting if those errors aren't displayed anyway.
3777 NOTE: it's still possible for any application or module to have it's
3778 own set of error texts inserted. The routines are there, just not
3779 used by default when no-err is given.
3782 *) Add support for FreeBSD on IA64.
3783 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3785 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3786 Kerberos function mit_des_cbc_cksum(). Before this change,
3787 the value returned by DES_cbc_cksum() was like the one from
3788 mit_des_cbc_cksum(), except the bytes were swapped.
3789 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3791 *) Allow an application to disable the automatic SSL chain building.
3792 Before this a rather primitive chain build was always performed in
3793 ssl3_output_cert_chain(): an application had no way to send the
3794 correct chain if the automatic operation produced an incorrect result.
3796 Now the chain builder is disabled if either:
3798 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3800 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3802 The reasoning behind this is that an application would not want the
3803 auto chain building to take place if extra chain certificates are
3804 present and it might also want a means of sending no additional
3805 certificates (for example the chain has two certificates and the
3809 *) Add the possibility to build without the ENGINE framework.
3810 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3812 *) Under Win32 gmtime() can return NULL: check return value in
3813 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3816 *) DSA routines: under certain error conditions uninitialized BN objects
3817 could be freed. Solution: make sure initialization is performed early
3818 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3819 Nils Larsch <nla@trustcenter.de> via PR#459)
3822 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3823 checked on reconnect on the client side, therefore session resumption
3824 could still fail with a "ssl session id is different" error. This
3825 behaviour is masked when SSL_OP_ALL is used due to
3826 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3827 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3828 followup to PR #377.
3831 *) IA-32 assembler support enhancements: unified ELF targets, support
3832 for SCO/Caldera platforms, fix for Cygwin shared build.
3835 *) Add support for FreeBSD on sparc64. As a consequence, support for
3836 FreeBSD on non-x86 processors is separate from x86 processors on
3837 the config script, much like the NetBSD support.
3838 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3840 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3842 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3845 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3846 code (06) was taken as the first octet of the session ID and the last
3847 octet was ignored consequently. As a result SSLv2 client side session
3848 caching could not have worked due to the session ID mismatch between
3850 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3854 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3855 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3859 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3860 seems that in spite of existing for more than a year, many application
3861 author have done nothing to provide the necessary callbacks, which
3862 means that this particular engine will not work properly anywhere.
3863 This is a very unfortunate situation which forces us, in the name
3864 of usability, to give the hw_ncipher.c a static lock, which is part
3866 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3867 appear in 0.9.8 or later. We EXPECT application authors to have
3868 dealt properly with this when 0.9.8 is released (unless we actually
3869 make such changes in the libcrypto locking code that changes will
3870 have to be made anyway).
3873 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3874 octets have been read, EOF or an error occurs. Without this change
3875 some truncated ASN1 structures will not produce an error.
3878 *) Disable Heimdal support, since it hasn't been fully implemented.
3879 Still give the possibility to force the use of Heimdal, but with
3880 warnings and a request that patches get sent to openssl-dev.
3883 *) Add the VC-CE target, introduce the WINCE sysname, and add
3884 INSTALL.WCE and appropriate conditionals to make it build.
3885 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3887 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3888 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3889 edit numbers of the version.
3890 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3892 *) Introduce safe string copy and catenation functions
3893 (BUF_strlcpy() and BUF_strlcat()).
3894 [Ben Laurie (CHATS) and Richard Levitte]
3896 *) Avoid using fixed-size buffers for one-line DNs.
3897 [Ben Laurie (CHATS)]
3899 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3900 resizing buffers containing secrets, and use where appropriate.
3901 [Ben Laurie (CHATS)]
3903 *) Avoid using fixed size buffers for configuration file location.
3904 [Ben Laurie (CHATS)]
3906 *) Avoid filename truncation for various CA files.
3907 [Ben Laurie (CHATS)]
3909 *) Use sizeof in preference to magic numbers.
3910 [Ben Laurie (CHATS)]
3912 *) Avoid filename truncation in cert requests.
3913 [Ben Laurie (CHATS)]
3915 *) Add assertions to check for (supposedly impossible) buffer
3917 [Ben Laurie (CHATS)]
3919 *) Don't cache truncated DNS entries in the local cache (this could
3920 potentially lead to a spoofing attack).
3921 [Ben Laurie (CHATS)]
3923 *) Fix various buffers to be large enough for hex/decimal
3924 representations in a platform independent manner.
3925 [Ben Laurie (CHATS)]
3927 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3928 resizing buffers containing secrets, and use where appropriate.
3929 [Ben Laurie (CHATS)]
3931 *) Add BIO_indent() to avoid much slightly worrying code to do
3933 [Ben Laurie (CHATS)]
3935 *) Convert sprintf()/BIO_puts() to BIO_printf().
3936 [Ben Laurie (CHATS)]
3938 *) buffer_gets() could terminate with the buffer only half
3940 [Ben Laurie (CHATS)]
3942 *) Add assertions to prevent user-supplied crypto functions from
3943 overflowing internal buffers by having large block sizes, etc.
3944 [Ben Laurie (CHATS)]
3946 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3948 [Ben Laurie (CHATS)]
3950 *) Eliminate unused copy of key in RC4.
3951 [Ben Laurie (CHATS)]
3953 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3954 [Ben Laurie (CHATS)]
3956 *) Fix off-by-one error in EGD path.
3957 [Ben Laurie (CHATS)]
3959 *) If RANDFILE path is too long, ignore instead of truncating.
3960 [Ben Laurie (CHATS)]
3962 *) Eliminate unused and incorrectly sized X.509 structure
3964 [Ben Laurie (CHATS)]
3966 *) Eliminate unused and dangerous function knumber().
3967 [Ben Laurie (CHATS)]
3969 *) Eliminate unused and dangerous structure, KSSL_ERR.
3970 [Ben Laurie (CHATS)]
3972 *) Protect against overlong session ID context length in an encoded
3973 session object. Since these are local, this does not appear to be
3975 [Ben Laurie (CHATS)]
3977 *) Change from security patch (see 0.9.6e below) that did not affect
3978 the 0.9.6 release series:
3980 Remote buffer overflow in SSL3 protocol - an attacker could
3981 supply an oversized master key in Kerberos-enabled versions.
3983 [Ben Laurie (CHATS)]
3985 *) Change the SSL kerb5 codes to match RFC 2712.
3988 *) Make -nameopt work fully for req and add -reqopt switch.
3989 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3991 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3992 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3994 *) Make sure tests can be performed even if the corresponding algorithms
3995 have been removed entirely. This was also the last step to make
3996 OpenSSL compilable with DJGPP under all reasonable conditions.
3997 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3999 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4000 to allow version independent disabling of normally unselected ciphers,
4001 which may be activated as a side-effect of selecting a single cipher.
4003 (E.g., cipher list string "RSA" enables ciphersuites that are left
4004 out of "ALL" because they do not provide symmetric encryption.
4005 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4006 [Lutz Jaenicke, Bodo Moeller]
4008 *) Add appropriate support for separate platform-dependent build
4009 directories. The recommended way to make a platform-dependent
4010 build directory is the following (tested on Linux), maybe with
4013 # Place yourself outside of the OpenSSL source tree. In
4014 # this example, the environment variable OPENSSL_SOURCE
4015 # is assumed to contain the absolute OpenSSL source directory.
4016 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4017 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4018 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4019 mkdir -p `dirname $F`
4020 ln -s $OPENSSL_SOURCE/$F $F
4023 To be absolutely sure not to disturb the source tree, a "make clean"
4024 is a good thing. If it isn't successfull, don't worry about it,
4025 it probably means the source directory is very clean.
4028 *) Make sure any ENGINE control commands make local copies of string
4029 pointers passed to them whenever necessary. Otherwise it is possible
4030 the caller may have overwritten (or deallocated) the original string
4031 data when a later ENGINE operation tries to use the stored values.
4032 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4034 *) Improve diagnostics in file reading and command-line digests.
4035 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4037 *) Add AES modes CFB and OFB to the object database. Correct an
4038 error in AES-CFB decryption.
4041 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4042 allows existing EVP_CIPHER_CTX structures to be reused after
4043 calling EVP_*Final(). This behaviour is used by encryption
4044 BIOs and some applications. This has the side effect that
4045 applications must explicitly clean up cipher contexts with
4046 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4049 *) Check the values of dna and dnb in bn_mul_recursive before calling
4050 bn_mul_comba (a non zero value means the a or b arrays do not contain
4051 n2 elements) and fallback to bn_mul_normal if either is not zero.
4054 *) Fix escaping of non-ASCII characters when using the -subj option
4055 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4058 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4059 form for "surname", serialNumber has no short form.
4060 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4061 therefore remove "mail" short name for "internet 7".
4062 The OID for unique identifiers in X509 certificates is
4063 x500UniqueIdentifier, not uniqueIdentifier.
4064 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4067 *) Add an "init" command to the ENGINE config module and auto initialize
4068 ENGINEs. Without any "init" command the ENGINE will be initialized
4069 after all ctrl commands have been executed on it. If init=1 the
4070 ENGINE is initailized at that point (ctrls before that point are run
4071 on the uninitialized ENGINE and after on the initialized one). If
4072 init=0 then the ENGINE will not be iniatialized at all.
4075 *) Fix the 'app_verify_callback' interface so that the user-defined
4076 argument is actually passed to the callback: In the
4077 SSL_CTX_set_cert_verify_callback() prototype, the callback
4078 declaration has been changed from
4081 int (*cb)(X509_STORE_CTX *,void *);
4082 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4083 i=s->ctx->app_verify_callback(&ctx)
4084 has been changed into
4085 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4087 To update applications using SSL_CTX_set_cert_verify_callback(),
4088 a dummy argument can be added to their callback functions.
4089 [D. K. Smetters <smetters@parc.xerox.com>]
4091 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4092 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4094 *) Add and OPENSSL_LOAD_CONF define which will cause
4095 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4096 This allows older applications to transparently support certain
4097 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4098 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4099 load the config file and OPENSSL_add_all_algorithms_conf() which will
4100 always load it have also been added.
4103 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4104 Adjust NIDs and EVP layer.
4105 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4107 *) Config modules support in openssl utility.
4109 Most commands now load modules from the config file,
4110 though in a few (such as version) this isn't done
4111 because it couldn't be used for anything.
4113 In the case of ca and req the config file used is
4114 the same as the utility itself: that is the -config
4115 command line option can be used to specify an
4119 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4120 use "openssl_conf" if filename is NULL use default openssl config file.
4123 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4124 config section name. Add a new flag to tolerate a missing config file
4125 and move code to CONF_modules_load_file().
4128 *) Support for crypto accelerator cards from Accelerated Encryption
4129 Processing, www.aep.ie. (Use engine 'aep')
4130 The support was copied from 0.9.6c [engine] and adapted/corrected
4131 to work with the new engine framework.
4132 [AEP Inc. and Richard Levitte]
4134 *) Support for SureWare crypto accelerator cards from Baltimore
4135 Technologies. (Use engine 'sureware')
4136 The support was copied from 0.9.6c [engine] and adapted
4137 to work with the new engine framework.
4140 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4141 make the newer ENGINE framework commands for the CHIL engine work.
4142 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4144 *) Make it possible to produce shared libraries on ReliantUNIX.
4145 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4147 *) Add the configuration target debug-linux-ppro.
4148 Make 'openssl rsa' use the general key loading routines
4149 implemented in apps.c, and make those routines able to
4150 handle the key format FORMAT_NETSCAPE and the variant
4152 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4154 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4155 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4157 *) Add -keyform to rsautl, and document -engine.
4158 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4160 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4161 BIO_R_NO_SUCH_FILE error code rather than the generic
4162 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4165 *) Add new functions
4167 ERR_peek_last_error_line
4168 ERR_peek_last_error_line_data.
4169 These are similar to
4172 ERR_peek_error_line_data,
4173 but report on the latest error recorded rather than the first one
4174 still in the error queue.
4175 [Ben Laurie, Bodo Moeller]
4177 *) default_algorithms option in ENGINE config module. This allows things
4179 default_algorithms = ALL
4180 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4183 *) Prelminary ENGINE config module.
4186 *) New experimental application configuration code.
4189 *) Change the AES code to follow the same name structure as all other
4190 symmetric ciphers, and behave the same way. Move everything to
4191 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4192 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4194 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4195 [Ben Laurie and Theo de Raadt]
4197 *) Add option to output public keys in req command.
4198 [Massimiliano Pala madwolf@openca.org]
4200 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4201 (up to about 10% better than before for P-192 and P-224).
4204 *) New functions/macros
4206 SSL_CTX_set_msg_callback(ctx, cb)
4207 SSL_CTX_set_msg_callback_arg(ctx, arg)
4208 SSL_set_msg_callback(ssl, cb)
4209 SSL_set_msg_callback_arg(ssl, arg)
4211 to request calling a callback function
4213 void cb(int write_p, int version, int content_type,
4214 const void *buf, size_t len, SSL *ssl, void *arg)
4216 whenever a protocol message has been completely received
4217 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4218 protocol version according to which the SSL library interprets
4219 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4220 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4221 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4222 specification (change_cipher_spec(20), alert(21), handshake(22)).
4223 'buf' and 'len' point to the actual message, 'ssl' to the
4224 SSL object, and 'arg' is the application-defined value set by
4225 SSL[_CTX]_set_msg_callback_arg().
4227 'openssl s_client' and 'openssl s_server' have new '-msg' options
4228 to enable a callback that displays all protocol messages.
4231 *) Change the shared library support so shared libraries are built as
4232 soon as the corresponding static library is finished, and thereby get
4233 openssl and the test programs linked against the shared library.
4234 This still only happens when the keyword "shard" has been given to
4235 the configuration scripts.
4237 NOTE: shared library support is still an experimental thing, and
4238 backward binary compatibility is still not guaranteed.
4239 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4241 *) Add support for Subject Information Access extension.
4242 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4244 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4245 additional bytes when new memory had to be allocated, not just
4246 when reusing an existing buffer.
4249 *) New command line and configuration option 'utf8' for the req command.
4250 This allows field values to be specified as UTF8 strings.
4253 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4254 runs for the former and machine-readable output for the latter.
4257 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4258 of the e-mail address in the DN (i.e., it will go into a certificate
4259 extension only). The new configuration file option 'email_in_dn = no'
4260 has the same effect.
4261 [Massimiliano Pala madwolf@openca.org]
4263 *) Change all functions with names starting with des_ to be starting
4264 with DES_ instead. Add wrappers that are compatible with libdes,
4265 but are named _ossl_old_des_*. Finally, add macros that map the
4266 des_* symbols to the corresponding _ossl_old_des_* if libdes
4267 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4268 desired, the des_* symbols will be mapped to DES_*, with one
4271 Since we provide two compatibility mappings, the user needs to
4272 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4273 compatibility is desired. The default (i.e., when that macro
4274 isn't defined) is OpenSSL 0.9.6c compatibility.
4276 There are also macros that enable and disable the support of old
4277 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4278 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4279 are defined, the default will apply: to support the old des routines.
4281 In either case, one must include openssl/des.h to get the correct
4282 definitions. Do not try to just include openssl/des_old.h, that
4285 NOTE: This is a major break of an old API into a new one. Software
4286 authors are encouraged to switch to the DES_ style functions. Some
4287 time in the future, des_old.h and the libdes compatibility functions
4288 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4289 default), and then completely removed.
4292 *) Test for certificates which contain unsupported critical extensions.
4293 If such a certificate is found during a verify operation it is
4294 rejected by default: this behaviour can be overridden by either
4295 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4296 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4297 X509_supported_extension() has also been added which returns 1 if a
4298 particular extension is supported.
4301 *) Modify the behaviour of EVP cipher functions in similar way to digests
4302 to retain compatibility with existing code.
4305 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4306 compatibility with existing code. In particular the 'ctx' parameter does
4307 not have to be to be initialized before the call to EVP_DigestInit() and
4308 it is tidied up after a call to EVP_DigestFinal(). New function
4309 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4310 EVP_MD_CTX_copy() changed to not require the destination to be
4311 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4312 requires the destination to be valid.
4314 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4315 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4318 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4319 so that complete 'Handshake' protocol structures are kept in memory
4320 instead of overwriting 'msg_type' and 'length' with 'body' data.
4323 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4324 [Massimo Santin via Richard Levitte]
4326 *) Major restructuring to the underlying ENGINE code. This includes
4327 reduction of linker bloat, separation of pure "ENGINE" manipulation
4328 (initialisation, etc) from functionality dealing with implementations
4329 of specific crypto iterfaces. This change also introduces integrated
4330 support for symmetric ciphers and digest implementations - so ENGINEs
4331 can now accelerate these by providing EVP_CIPHER and EVP_MD
4332 implementations of their own. This is detailed in crypto/engine/README
4333 as it couldn't be adequately described here. However, there are a few
4334 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4335 were changed in the original introduction of ENGINE code have now
4336 reverted back - the hooking from this code to ENGINE is now a good
4337 deal more passive and at run-time, operations deal directly with
4338 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4339 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4340 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4341 they were not being used by the framework as there is no concept of a
4342 BIGNUM_METHOD and they could not be generalised to the new
4343 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4344 ENGINE_cpy() has been removed as it cannot be consistently defined in
4348 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4351 *) Change mkdef.pl to sort symbols that get the same entry number,
4352 and make sure the automatically generated functions ERR_load_*
4353 become part of libeay.num as well.
4356 *) New function SSL_renegotiate_pending(). This returns true once
4357 renegotiation has been requested (either SSL_renegotiate() call
4358 or HelloRequest/ClientHello receveived from the peer) and becomes
4359 false once a handshake has been completed.
4360 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4361 sends a HelloRequest, but does not ensure that a handshake takes
4362 place. SSL_renegotiate_pending() is useful for checking if the
4363 client has followed the request.)
4366 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4367 By default, clients may request session resumption even during
4368 renegotiation (if session ID contexts permit); with this option,
4369 session resumption is possible only in the first handshake.
4371 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4372 more bits available for options that should not be part of
4373 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4376 *) Add some demos for certificate and certificate request creation.
4379 *) Make maximum certificate chain size accepted from the peer application
4380 settable (SSL*_get/set_max_cert_list()), as proposed by
4381 "Douglas E. Engert" <deengert@anl.gov>.
4384 *) Add support for shared libraries for Unixware-7
4385 (Boyd Lynn Gerber <gerberb@zenez.com>).
4388 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4389 be done prior to destruction. Use this to unload error strings from
4390 ENGINEs that load their own error strings. NB: This adds two new API
4391 functions to "get" and "set" this destroy handler in an ENGINE.
4394 *) Alter all existing ENGINE implementations (except "openssl" and
4395 "openbsd") to dynamically instantiate their own error strings. This
4396 makes them more flexible to be built both as statically-linked ENGINEs
4397 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4398 Also, add stub code to each that makes building them as self-contained
4399 shared-libraries easier (see README.ENGINE).
4402 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4403 implementations into applications that are completely implemented in
4404 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4405 commands that can be used to configure what shared-library to load and
4406 to control aspects of the way it is handled. Also, made an update to
4407 the README.ENGINE file that brings its information up-to-date and
4408 provides some information and instructions on the "dynamic" ENGINE
4409 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4412 *) Make it possible to unload ranges of ERR strings with a new
4413 "ERR_unload_strings" function.
4416 *) Add a copy() function to EVP_MD.
4419 *) Make EVP_MD routines take a context pointer instead of just the
4420 md_data void pointer.
4423 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4424 that the digest can only process a single chunk of data
4425 (typically because it is provided by a piece of
4426 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4427 is only going to provide a single chunk of data, and hence the
4428 framework needn't accumulate the data for oneshot drivers.
4431 *) As with "ERR", make it possible to replace the underlying "ex_data"
4432 functions. This change also alters the storage and management of global
4433 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4434 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4435 index counters. The API functions that use this state have been changed
4436 to take a "class_index" rather than pointers to the class's local STACK
4437 and counter, and there is now an API function to dynamically create new
4438 classes. This centralisation allows us to (a) plug a lot of the
4439 thread-safety problems that existed, and (b) makes it possible to clean
4440 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4441 such data would previously have always leaked in application code and
4442 workarounds were in place to make the memory debugging turn a blind eye
4443 to it. Application code that doesn't use this new function will still
4444 leak as before, but their memory debugging output will announce it now
4445 rather than letting it slide.
4447 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4448 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4449 has a return value to indicate success or failure.
4452 *) Make it possible to replace the underlying "ERR" functions such that the
4453 global state (2 LHASH tables and 2 locks) is only used by the "default"
4454 implementation. This change also adds two functions to "get" and "set"
4455 the implementation prior to it being automatically set the first time
4456 any other ERR function takes place. Ie. an application can call "get",
4457 pass the return value to a module it has just loaded, and that module
4458 can call its own "set" function using that value. This means the
4459 module's "ERR" operations will use (and modify) the error state in the
4460 application and not in its own statically linked copy of OpenSSL code.
4463 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4464 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4465 the operation, and provides a more encapsulated way for external code
4466 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4467 to use these functions rather than manually incrementing the counts.
4469 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4472 *) Add EVP test program.
4475 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4478 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4479 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4480 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4481 These allow a CRL to be built without having to access X509_CRL fields
4482 directly. Modify 'ca' application to use new functions.
4485 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4486 bug workarounds. Rollback attack detection is a security feature.
4487 The problem will only arise on OpenSSL servers when TLSv1 is not
4488 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4489 Software authors not wanting to support TLSv1 will have special reasons
4490 for their choice and can explicitly enable this option.
4491 [Bodo Moeller, Lutz Jaenicke]
4493 *) Rationalise EVP so it can be extended: don't include a union of
4494 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4495 (similar to those existing for EVP_CIPHER_CTX).
4500 EVP_MD_CTX_init(&md); /* new function call */
4501 EVP_DigestInit(&md, EVP_sha1());
4502 EVP_DigestUpdate(&md, in, len);
4503 EVP_DigestFinal(&md, out, NULL);
4504 EVP_MD_CTX_cleanup(&md); /* new function call */
4508 *) Make DES key schedule conform to the usual scheme, as well as
4509 correcting its structure. This means that calls to DES functions
4510 now have to pass a pointer to a des_key_schedule instead of a
4511 plain des_key_schedule (which was actually always a pointer
4514 des_key_schedule ks;
4516 des_set_key_checked(..., &ks);
4517 des_ncbc_encrypt(..., &ks, ...);
4519 (Note that a later change renames 'des_...' into 'DES_...'.)
4522 *) Initial reduction of linker bloat: the use of some functions, such as
4523 PEM causes large amounts of unused functions to be linked in due to
4524 poor organisation. For example pem_all.c contains every PEM function
4525 which has a knock on effect of linking in large amounts of (unused)
4526 ASN1 code. Grouping together similar functions and splitting unrelated
4527 functions prevents this.
4530 *) Cleanup of EVP macros.
4533 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4534 correct _ecb suffix.
4537 *) Add initial OCSP responder support to ocsp application. The
4538 revocation information is handled using the text based index
4539 use by the ca application. The responder can either handle
4540 requests generated internally, supplied in files (for example
4541 via a CGI script) or using an internal minimal server.
4544 *) Add configuration choices to get zlib compression for TLS.
4547 *) Changes to Kerberos SSL for RFC 2712 compliance:
4548 1. Implemented real KerberosWrapper, instead of just using
4549 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4550 2. Implemented optional authenticator field of KerberosWrapper.
4552 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4553 and authenticator structs; see crypto/krb5/.
4555 Generalized Kerberos calls to support multiple Kerberos libraries.
4556 [Vern Staats <staatsvr@asc.hpc.mil>,
4557 Jeffrey Altman <jaltman@columbia.edu>
4558 via Richard Levitte]
4560 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4561 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4562 values for each of the key sizes rather than having just
4563 parameters (and 'speed' generating keys each time).
4566 *) Speed up EVP routines.
4569 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4570 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4571 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4572 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4574 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4575 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4576 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4579 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4581 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4584 *) Added the OS2-EMX target.
4585 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4587 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4588 to support NCONF routines in extension code. New function CONF_set_nconf()
4589 to allow functions which take an NCONF to also handle the old LHASH
4590 structure: this means that the old CONF compatible routines can be
4591 retained (in particular wrt extensions) without having to duplicate the
4592 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4595 *) Enhance the general user interface with mechanisms for inner control
4596 and with possibilities to have yes/no kind of prompts.
4599 *) Change all calls to low level digest routines in the library and
4600 applications to use EVP. Add missing calls to HMAC_cleanup() and
4601 don't assume HMAC_CTX can be copied using memcpy().
4602 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4604 *) Add the possibility to control engines through control names but with
4605 arbitrary arguments instead of just a string.
4606 Change the key loaders to take a UI_METHOD instead of a callback
4607 function pointer. NOTE: this breaks binary compatibility with earlier
4608 versions of OpenSSL [engine].
4609 Adapt the nCipher code for these new conditions and add a card insertion
4613 *) Enhance the general user interface with mechanisms to better support
4614 dialog box interfaces, application-defined prompts, the possibility
4615 to use defaults (for example default passwords from somewhere else)
4616 and interrupts/cancellations.
4619 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4620 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4623 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4624 tidy up some unnecessarily weird code in 'sk_new()').
4625 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4627 *) Change the key loading routines for ENGINEs to use the same kind
4628 callback (pem_password_cb) as all other routines that need this
4632 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4633 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4634 than this minimum value is recommended.
4637 *) New random seeder for OpenVMS, using the system process statistics
4638 that are easily reachable.
4641 *) Windows apparently can't transparently handle global
4642 variables defined in DLLs. Initialisations such as:
4644 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4646 wont compile. This is used by the any applications that need to
4647 declare their own ASN1 modules. This was fixed by adding the option
4648 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4649 needed for static libraries under Win32.
4652 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4653 setting of purpose and trust fields. New X509_STORE trust and
4654 purpose functions and tidy up setting in other SSL functions.
4657 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4658 structure. These are inherited by X509_STORE_CTX when it is
4659 initialised. This allows various defaults to be set in the
4660 X509_STORE structure (such as flags for CRL checking and custom
4661 purpose or trust settings) for functions which only use X509_STORE_CTX
4662 internally such as S/MIME.
4664 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4665 trust settings if they are not set in X509_STORE. This allows X509_STORE
4666 purposes and trust (in S/MIME for example) to override any set by default.
4668 Add command line options for CRL checking to smime, s_client and s_server
4672 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4673 are set then the CRL is looked up in the X509_STORE structure and
4674 its validity and signature checked, then if the certificate is found
4675 in the CRL the verify fails with a revoked error.
4677 Various new CRL related callbacks added to X509_STORE_CTX structure.
4679 Command line options added to 'verify' application to support this.
4681 This needs some additional work, such as being able to handle multiple
4682 CRLs with different times, extension based lookup (rather than just
4683 by subject name) and ultimately more complete V2 CRL extension
4687 *) Add a general user interface API (crypto/ui/). This is designed
4688 to replace things like des_read_password and friends (backward
4689 compatibility functions using this new API are provided).
4690 The purpose is to remove prompting functions from the DES code
4691 section as well as provide for prompting through dialog boxes in
4692 a window system and the like.
4695 *) Add "ex_data" support to ENGINE so implementations can add state at a
4696 per-structure level rather than having to store it globally.
4699 *) Make it possible for ENGINE structures to be copied when retrieved by
4700 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4701 This causes the "original" ENGINE structure to act like a template,
4702 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4703 operational state can be localised to each ENGINE structure, despite the
4704 fact they all share the same "methods". New ENGINE structures returned in
4705 this case have no functional references and the return value is the single
4706 structural reference. This matches the single structural reference returned
4707 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4711 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4712 needs to match any other type at all we need to manually clear the
4716 *) Changes to the "openssl engine" utility to include;
4717 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4718 about an ENGINE's available control commands.
4719 - executing control commands from command line arguments using the
4720 '-pre' and '-post' switches. '-post' is only used if '-t' is
4721 specified and the ENGINE is successfully initialised. The syntax for
4722 the individual commands are colon-separated, for example;
4723 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4726 *) New dynamic control command support for ENGINEs. ENGINEs can now
4727 declare their own commands (numbers), names (strings), descriptions,
4728 and input types for run-time discovery by calling applications. A
4729 subset of these commands are implicitly classed as "executable"
4730 depending on their input type, and only these can be invoked through
4731 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4732 can be based on user input, config files, etc). The distinction is
4733 that "executable" commands cannot return anything other than a boolean
4734 result and can only support numeric or string input, whereas some
4735 discoverable commands may only be for direct use through
4736 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4737 pointers, or other custom uses. The "executable" commands are to
4738 support parameterisations of ENGINE behaviour that can be
4739 unambiguously defined by ENGINEs and used consistently across any
4740 OpenSSL-based application. Commands have been added to all the
4741 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4742 control over shared-library paths without source code alterations.
4745 *) Changed all ENGINE implementations to dynamically allocate their
4746 ENGINEs rather than declaring them statically. Apart from this being
4747 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4748 this also allows the implementations to compile without using the
4749 internal engine_int.h header.
4752 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4753 'const' value. Any code that should be able to modify a RAND_METHOD
4754 should already have non-const pointers to it (ie. they should only
4755 modify their own ones).
4758 *) Made a variety of little tweaks to the ENGINE code.
4759 - "atalla" and "ubsec" string definitions were moved from header files
4760 to C code. "nuron" string definitions were placed in variables
4761 rather than hard-coded - allowing parameterisation of these values
4762 later on via ctrl() commands.
4763 - Removed unused "#if 0"'d code.
4764 - Fixed engine list iteration code so it uses ENGINE_free() to release
4765 structural references.
4766 - Constified the RAND_METHOD element of ENGINE structures.
4767 - Constified various get/set functions as appropriate and added
4768 missing functions (including a catch-all ENGINE_cpy that duplicates
4769 all ENGINE values onto a new ENGINE except reference counts/state).
4770 - Removed NULL parameter checks in get/set functions. Setting a method
4771 or function to NULL is a way of cancelling out a previously set
4772 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4773 and doesn't justify the extra error symbols and code.
4774 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4775 flags from engine_int.h to engine.h.
4776 - Changed prototypes for ENGINE handler functions (init(), finish(),
4777 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4780 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4781 to the algorithm using long division. The binary algorithm can be
4782 used only if the modulus is odd. On 32-bit systems, it is faster
4783 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4784 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4785 up to 450 bits. In 64-bit environments, the binary algorithm
4786 appears to be advantageous for much longer moduli; here we use it
4787 for moduli up to 2048 bits.
4790 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4791 could not support the combine flag in choice fields.
4794 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4795 extensions from a certificate request to the certificate.
4798 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4799 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4800 file: this allows the display of the certificate about to be
4801 signed to be customised, to allow certain fields to be included
4802 or excluded and extension details. The old system didn't display
4803 multicharacter strings properly, omitted fields not in the policy
4804 and couldn't display additional details such as extensions.
4807 *) Function EC_POINTs_mul for multiple scalar multiplication
4808 of an arbitrary number of elliptic curve points
4809 \sum scalars[i]*points[i],
4810 optionally including the generator defined for the EC_GROUP:
4811 scalar*generator + \sum scalars[i]*points[i].
4813 EC_POINT_mul is a simple wrapper function for the typical case
4814 that the point list has just one item (besides the optional
4818 *) First EC_METHODs for curves over GF(p):
4820 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4821 operations and provides various method functions that can also
4822 operate with faster implementations of modular arithmetic.
4824 EC_GFp_mont_method() reuses most functions that are part of
4825 EC_GFp_simple_method, but uses Montgomery arithmetic.
4827 [Bodo Moeller; point addition and point doubling
4828 implementation directly derived from source code provided by
4829 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4831 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4832 crypto/ec/ec_lib.c):
4834 Curves are EC_GROUP objects (with an optional group generator)
4835 based on EC_METHODs that are built into the library.
4837 Points are EC_POINT objects based on EC_GROUP objects.
4839 Most of the framework would be able to handle curves over arbitrary
4840 finite fields, but as there are no obvious types for fields other
4841 than GF(p), some functions are limited to that for now.
4844 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4845 that the file contains a complete HTTP response.
4848 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4849 change the def and num file printf format specifier from "%-40sXXX"
4850 to "%-39s XXX". The latter will always guarantee a space after the
4851 field while the former will cause them to run together if the field
4852 is 40 of more characters long.
4855 *) Constify the cipher and digest 'method' functions and structures
4856 and modify related functions to take constant EVP_MD and EVP_CIPHER
4860 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4861 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4864 *) Modify EVP_Digest*() routines so they now return values. Although the
4865 internal software routines can never fail additional hardware versions
4869 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4871 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4872 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4875 ERR_R_NESTED_ASN1_ERROR
4877 ERR_R_MISSING_ASN1_EOS
4878 were 4 .. 9, conflicting with
4879 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4881 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4882 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4884 Add new error code 'ERR_R_INTERNAL_ERROR'.
4887 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4891 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4892 sets the subject name for a new request or supersedes the
4893 subject name in a given request. Formats that can be parsed are
4894 'CN=Some Name, OU=myOU, C=IT'
4896 'CN=Some Name/OU=myOU/C=IT'.
4898 Add options '-batch' and '-verbose' to 'openssl req'.
4899 [Massimiliano Pala <madwolf@hackmasters.net>]
4901 *) Introduce the possibility to access global variables through
4902 functions on platform were that's the best way to handle exporting
4903 global variables in shared libraries. To enable this functionality,
4904 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4905 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4906 is normally done by Configure or something similar).
4908 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4909 in the source file (foo.c) like this:
4911 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4912 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4914 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4915 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4917 OPENSSL_DECLARE_GLOBAL(int,foo);
4918 #define foo OPENSSL_GLOBAL_REF(foo)
4919 OPENSSL_DECLARE_GLOBAL(double,bar);
4920 #define bar OPENSSL_GLOBAL_REF(bar)
4922 The #defines are very important, and therefore so is including the
4923 header file everywhere where the defined globals are used.
4925 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4926 of ASN.1 items, but that structure is a bit different.
4928 The largest change is in util/mkdef.pl which has been enhanced with
4929 better and easier to understand logic to choose which symbols should
4930 go into the Windows .def files as well as a number of fixes and code
4931 cleanup (among others, algorithm keywords are now sorted
4932 lexicographically to avoid constant rewrites).
4935 *) In BN_div() keep a copy of the sign of 'num' before writing the
4936 result to 'rm' because if rm==num the value will be overwritten
4937 and produce the wrong result if 'num' is negative: this caused
4938 problems with BN_mod() and BN_nnmod().
4941 *) Function OCSP_request_verify(). This checks the signature on an
4942 OCSP request and verifies the signer certificate. The signer
4943 certificate is just checked for a generic purpose and OCSP request
4947 *) Add OCSP_check_validity() function to check the validity of OCSP
4948 responses. OCSP responses are prepared in real time and may only
4949 be a few seconds old. Simply checking that the current time lies
4950 between thisUpdate and nextUpdate max reject otherwise valid responses
4951 caused by either OCSP responder or client clock inaccuracy. Instead
4952 we allow thisUpdate and nextUpdate to fall within a certain period of
4953 the current time. The age of the response can also optionally be
4954 checked. Two new options -validity_period and -status_age added to
4958 *) If signature or public key algorithm is unrecognized print out its
4959 OID rather that just UNKNOWN.
4962 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4963 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4964 ID to be generated from the issuer certificate alone which can then be
4965 passed to OCSP_id_issuer_cmp().
4968 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4969 ASN1 modules to export functions returning ASN1_ITEM pointers
4970 instead of the ASN1_ITEM structures themselves. This adds several
4971 new macros which allow the underlying ASN1 function/structure to
4972 be accessed transparently. As a result code should not use ASN1_ITEM
4973 references directly (such as &X509_it) but instead use the relevant
4974 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4975 use of the new ASN1 code on platforms where exporting structures
4976 is problematical (for example in shared libraries) but exporting
4977 functions returning pointers to structures is not.
4980 *) Add support for overriding the generation of SSL/TLS session IDs.
4981 These callbacks can be registered either in an SSL_CTX or per SSL.
4982 The purpose of this is to allow applications to control, if they wish,
4983 the arbitrary values chosen for use as session IDs, particularly as it
4984 can be useful for session caching in multiple-server environments. A
4985 command-line switch for testing this (and any client code that wishes
4986 to use such a feature) has been added to "s_server".
4987 [Geoff Thorpe, Lutz Jaenicke]
4989 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4990 of the form '#if defined(...) || defined(...) || ...' and
4991 '#if !defined(...) && !defined(...) && ...'. This also avoids
4992 the growing number of special cases it was previously handling.
4995 *) Make all configuration macros available for application by making
4996 sure they are available in opensslconf.h, by giving them names starting
4997 with "OPENSSL_" to avoid conflicts with other packages and by making
4998 sure e_os2.h will cover all platform-specific cases together with
5000 Additionally, it is now possible to define configuration/platform-
5001 specific names (called "system identities"). In the C code, these
5002 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5003 macro with the name beginning with "OPENSSL_SYS_", which is determined
5004 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5008 *) New option -set_serial to 'req' and 'x509' this allows the serial
5009 number to use to be specified on the command line. Previously self
5010 signed certificates were hard coded with serial number 0 and the
5011 CA options of 'x509' had to use a serial number in a file which was
5015 *) New options to 'ca' utility to support V2 CRL entry extensions.
5016 Currently CRL reason, invalidity date and hold instruction are
5017 supported. Add new CRL extensions to V3 code and some new objects.
5020 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5021 disable standard block padding (aka PKCS#5 padding) in the EVP
5022 API, which was previously mandatory. This means that the data is
5023 not padded in any way and so the total length much be a multiple
5024 of the block size, otherwise an error occurs.
5027 *) Initial (incomplete) OCSP SSL support.
5030 *) New function OCSP_parse_url(). This splits up a URL into its host,
5031 port and path components: primarily to parse OCSP URLs. New -url
5032 option to ocsp utility.
5035 *) New nonce behavior. The return value of OCSP_check_nonce() now
5036 reflects the various checks performed. Applications can decide
5037 whether to tolerate certain situations such as an absent nonce
5038 in a response when one was present in a request: the ocsp application
5039 just prints out a warning. New function OCSP_add1_basic_nonce()
5040 this is to allow responders to include a nonce in a response even if
5041 the request is nonce-less.
5044 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5045 skipped when using openssl x509 multiple times on a single input file,
5046 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5049 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5050 set string type: to handle setting ASN1_TIME structures. Fix ca
5051 utility to correctly initialize revocation date of CRLs.
5054 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5055 the clients preferred ciphersuites and rather use its own preferences.
5056 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5057 Internet Explorer by ensuring unchanged hash method during stepup.
5058 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5061 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5062 to aes and add a new 'exist' option to print out symbols that don't
5066 *) Additional options to ocsp utility to allow flags to be set and
5067 additional certificates supplied.
5070 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5071 OCSP client a number of certificate to only verify the response
5075 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5076 handle the new API. Currently only ECB, CBC modes supported. Add new
5079 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5080 Encryption Standard (AES) Ciphersuites for Transport Layer
5081 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5082 not enabled by default and were not part of the "ALL" ciphersuite
5083 alias because they were not yet official; they could be
5084 explicitly requested by specifying the "AESdraft" ciphersuite
5085 group alias. In the final release of OpenSSL 0.9.7, the group
5086 alias is called "AES" and is part of "ALL".)
5087 [Ben Laurie, Steve Henson, Bodo Moeller]
5089 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5090 request to response.
5093 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5094 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5095 extract information from a certificate request. OCSP_response_create()
5096 creates a response and optionally adds a basic response structure.
5097 OCSP_basic_add1_status() adds a complete single response to a basic
5098 response and returns the OCSP_SINGLERESP structure just added (to allow
5099 extensions to be included for example). OCSP_basic_add1_cert() adds a
5100 certificate to a basic response and OCSP_basic_sign() signs a basic
5101 response with various flags. New helper functions ASN1_TIME_check()
5102 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5103 (converts ASN1_TIME to GeneralizedTime).
5106 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5107 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5108 structure from a certificate. X509_pubkey_digest() digests the public_key
5109 contents: this is used in various key identifiers.
5112 *) Make sk_sort() tolerate a NULL argument.
5113 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5115 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5116 passed by the function are trusted implicitly. If any of them signed the
5117 response then it is assumed to be valid and is not verified.
5120 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5121 to data. This was previously part of the PKCS7 ASN1 code. This
5122 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5123 [Steve Henson, reported by Kenneth R. Robinette
5124 <support@securenetterm.com>]
5126 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5127 routines: without these tracing memory leaks is very painful.
5128 Fix leaks in PKCS12 and PKCS7 routines.
5131 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5132 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5133 effectively meant GeneralizedTime would never be used. Now it
5134 is initialised to -1 but X509_time_adj() now has to check the value
5135 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5136 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5137 [Steve Henson, reported by Kenneth R. Robinette
5138 <support@securenetterm.com>]
5140 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5141 result in a zero length in the ASN1_INTEGER structure which was
5142 not consistent with the structure when d2i_ASN1_INTEGER() was used
5143 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5144 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5145 where it did not print out a minus for negative ASN1_INTEGER.
5148 *) Add summary printout to ocsp utility. The various functions which
5149 convert status values to strings have been renamed to:
5150 OCSP_response_status_str(), OCSP_cert_status_str() and
5151 OCSP_crl_reason_str() and are no longer static. New options
5152 to verify nonce values and to disable verification. OCSP response
5153 printout format cleaned up.
5156 *) Add additional OCSP certificate checks. These are those specified
5157 in RFC2560. This consists of two separate checks: the CA of the
5158 certificate being checked must either be the OCSP signer certificate
5159 or the issuer of the OCSP signer certificate. In the latter case the
5160 OCSP signer certificate must contain the OCSP signing extended key
5161 usage. This check is performed by attempting to match the OCSP
5162 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5163 in the OCSP_CERTID structures of the response.
5166 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5167 and related routines. This uses the standard OpenSSL certificate
5168 verify routines to perform initial checks (just CA validity) and
5169 to obtain the certificate chain. Then additional checks will be
5170 performed on the chain. Currently the root CA is checked to see
5171 if it is explicitly trusted for OCSP signing. This is used to set
5172 a root CA as a global signing root: that is any certificate that
5173 chains to that CA is an acceptable OCSP signing certificate.
5176 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5177 extensions from a separate configuration file.
5178 As when reading extensions from the main configuration file,
5179 the '-extensions ...' option may be used for specifying the
5181 [Massimiliano Pala <madwolf@comune.modena.it>]
5183 *) New OCSP utility. Allows OCSP requests to be generated or
5184 read. The request can be sent to a responder and the output
5185 parsed, outputed or printed in text form. Not complete yet:
5186 still needs to check the OCSP response validity.
5189 *) New subcommands for 'openssl ca':
5190 'openssl ca -status <serial>' prints the status of the cert with
5191 the given serial number (according to the index file).
5192 'openssl ca -updatedb' updates the expiry status of certificates
5194 [Massimiliano Pala <madwolf@comune.modena.it>]
5196 *) New '-newreq-nodes' command option to CA.pl. This is like
5197 '-newreq', but calls 'openssl req' with the '-nodes' option
5198 so that the resulting key is not encrypted.
5199 [Damien Miller <djm@mindrot.org>]
5201 *) New configuration for the GNU Hurd.
5202 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5204 *) Initial code to implement OCSP basic response verify. This
5205 is currently incomplete. Currently just finds the signer's
5206 certificate and verifies the signature on the response.
5209 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5210 value of OPENSSLDIR. This is available via the new '-d' option
5211 to 'openssl version', and is also included in 'openssl version -a'.
5214 *) Allowing defining memory allocation callbacks that will be given
5215 file name and line number information in additional arguments
5216 (a const char* and an int). The basic functionality remains, as
5217 well as the original possibility to just replace malloc(),
5218 realloc() and free() by functions that do not know about these
5219 additional arguments. To register and find out the current
5220 settings for extended allocation functions, the following
5221 functions are provided:
5223 CRYPTO_set_mem_ex_functions
5224 CRYPTO_set_locked_mem_ex_functions
5225 CRYPTO_get_mem_ex_functions
5226 CRYPTO_get_locked_mem_ex_functions
5228 These work the same way as CRYPTO_set_mem_functions and friends.
5229 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5230 extended allocation function is enabled.
5231 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5232 a conventional allocation function is enabled.
5233 [Richard Levitte, Bodo Moeller]
5235 *) Finish off removing the remaining LHASH function pointer casts.
5236 There should no longer be any prototype-casting required when using
5237 the LHASH abstraction, and any casts that remain are "bugs". See
5238 the callback types and macros at the head of lhash.h for details
5239 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5242 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5243 If /dev/[u]random devices are not available or do not return enough
5244 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5246 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5247 /etc/entropy will be queried once each in this sequence, quering stops
5248 when enough entropy was collected without querying more sockets.
5251 *) Change the Unix RAND_poll() variant to be able to poll several
5252 random devices, as specified by DEVRANDOM, until a sufficient amount
5253 of data has been collected. We spend at most 10 ms on each file
5254 (select timeout) and read in non-blocking mode. DEVRANDOM now
5255 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5256 (previously it was just the string "/dev/urandom"), so on typical
5257 platforms the 10 ms delay will never occur.
5258 Also separate out the Unix variant to its own file, rand_unix.c.
5259 For VMS, there's a currently-empty rand_vms.c.
5262 *) Move OCSP client related routines to ocsp_cl.c. These
5263 provide utility functions which an application needing
5264 to issue a request to an OCSP responder and analyse the
5265 response will typically need: as opposed to those which an
5266 OCSP responder itself would need which will be added later.
5268 OCSP_request_sign() signs an OCSP request with an API similar
5269 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5270 response. OCSP_response_get1_basic() extracts basic response
5271 from response. OCSP_resp_find_status(): finds and extracts status
5272 information from an OCSP_CERTID structure (which will be created
5273 when the request structure is built). These are built from lower
5274 level functions which work on OCSP_SINGLERESP structures but
5275 wont normally be used unless the application wishes to examine
5276 extensions in the OCSP response for example.
5278 Replace nonce routines with a pair of functions.
5279 OCSP_request_add1_nonce() adds a nonce value and optionally
5280 generates a random value. OCSP_check_nonce() checks the
5281 validity of the nonce in an OCSP response.
5284 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5285 This doesn't copy the supplied OCSP_CERTID and avoids the
5286 need to free up the newly created id. Change return type
5287 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5288 This can then be used to add extensions to the request.
5289 Deleted OCSP_request_new(), since most of its functionality
5290 is now in OCSP_REQUEST_new() (and the case insensitive name
5291 clash) apart from the ability to set the request name which
5292 will be added elsewhere.
5295 *) Update OCSP API. Remove obsolete extensions argument from
5296 various functions. Extensions are now handled using the new
5297 OCSP extension code. New simple OCSP HTTP function which
5298 can be used to send requests and parse the response.
5301 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5302 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5303 uses the special reorder version of SET OF to sort the attributes
5304 and reorder them to match the encoded order. This resolves a long
5305 standing problem: a verify on a PKCS7 structure just after signing
5306 it used to fail because the attribute order did not match the
5307 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5308 it uses the received order. This is necessary to tolerate some broken
5309 software that does not order SET OF. This is handled by encoding
5310 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5311 to produce the required SET OF.
5314 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5315 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5316 files to get correct declarations of the ASN.1 item variables.
5319 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5320 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5321 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5322 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5323 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5324 ASN1_ITEM and no wrapper functions.
5327 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5328 replace the old function pointer based I/O routines. Change most of
5329 the *_d2i_bio() and *_d2i_fp() functions to use these.
5332 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5333 lines, recognice more "algorithms" that can be deselected, and make
5334 it complain about algorithm deselection that isn't recognised.
5337 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5338 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5339 to use new functions. Add NO_ASN1_OLD which can be set to remove
5340 some old style ASN1 functions: this can be used to determine if old
5341 code will still work when these eventually go away.
5344 *) New extension functions for OCSP structures, these follow the
5345 same conventions as certificates and CRLs.
5348 *) New function X509V3_add1_i2d(). This automatically encodes and
5349 adds an extension. Its behaviour can be customised with various
5350 flags to append, replace or delete. Various wrappers added for
5351 certifcates and CRLs.
5354 *) Fix to avoid calling the underlying ASN1 print routine when
5355 an extension cannot be parsed. Correct a typo in the
5356 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5359 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5360 entries for variables.
5363 *) Add functionality to apps/openssl.c for detecting locking
5364 problems: As the program is single-threaded, all we have
5365 to do is register a locking callback using an array for
5366 storing which locks are currently held by the program.
5369 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5370 SSL_get_ex_data_X509_STORE_idx(), which is used in
5371 ssl_verify_cert_chain() and thus can be called at any time
5372 during TLS/SSL handshakes so that thread-safety is essential.
5373 Unfortunately, the ex_data design is not at all suited
5374 for multi-threaded use, so it probably should be abolished.
5377 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5378 [Broadcom, tweaked and integrated by Geoff Thorpe]
5380 *) Move common extension printing code to new function
5381 X509V3_print_extensions(). Reorganise OCSP print routines and
5382 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5385 *) New function X509_signature_print() to remove duplication in some
5389 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5390 set (this was treated exactly the same as SET OF previously). This
5391 is used to reorder the STACK representing the structure to match the
5392 encoding. This will be used to get round a problem where a PKCS7
5393 structure which was signed could not be verified because the STACK
5394 order did not reflect the encoded order.
5397 *) Reimplement the OCSP ASN1 module using the new code.
5400 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5401 for its ASN1 operations. The old style function pointers still exist
5402 for now but they will eventually go away.
5405 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5406 completely replaces the old ASN1 functionality with a table driven
5407 encoder and decoder which interprets an ASN1_ITEM structure describing
5408 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5409 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5410 has also been converted to the new form.
5413 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5414 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5415 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5416 for negative moduli.
5419 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5420 of not touching the result's sign bit.
5423 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5427 *) Changed the LHASH code to use prototypes for callbacks, and created
5428 macros to declare and implement thin (optionally static) functions
5429 that provide type-safety and avoid function pointer casting for the
5430 type-specific callbacks.
5433 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5435 [Veers Staats <staatsvr@asc.hpc.mil>,
5436 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5438 *) Reformat the FAQ so the different questions and answers can be divided
5439 in sections depending on the subject.
5442 *) Have the zlib compression code load ZLIB.DLL dynamically under
5446 *) New function BN_mod_sqrt for computing square roots modulo a prime
5447 (using the probabilistic Tonelli-Shanks algorithm unless
5448 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5449 be handled deterministically).
5450 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5452 *) Make BN_mod_inverse faster by explicitly handling small quotients
5453 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5454 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5457 *) New function BN_kronecker.
5460 *) Fix BN_gcd so that it works on negative inputs; the result is
5461 positive unless both parameters are zero.
5462 Previously something reasonably close to an infinite loop was
5463 possible because numbers could be growing instead of shrinking
5464 in the implementation of Euclid's algorithm.
5467 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5468 sign of the number in question.
5470 Fix BN_is_word(a,w) to work correctly for w == 0.
5472 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5473 because its test if the absolute value of 'a' equals 'w'.
5474 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5475 it exists mostly for use in the implementations of BN_is_zero(),
5476 BN_is_one(), and BN_is_word().
5479 *) New function BN_swap.
5482 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5483 the exponentiation functions are more likely to produce reasonable
5484 results on negative inputs.
5487 *) Change BN_mod_mul so that the result is always non-negative.
5488 Previously, it could be negative if one of the factors was negative;
5489 I don't think anyone really wanted that behaviour.
5492 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5493 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5494 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5495 and add new functions:
5504 BN_mod_lshift1_quick
5508 These functions always generate non-negative results.
5510 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5511 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5513 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5514 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5515 be reduced modulo m.
5516 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5519 The following entry accidentily appeared in the CHANGES file
5520 distributed with OpenSSL 0.9.7. The modifications described in
5521 it do *not* apply to OpenSSL 0.9.7.
5523 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5524 was actually never needed) and in BN_mul(). The removal in BN_mul()
5525 required a small change in bn_mul_part_recursive() and the addition
5526 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5527 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5528 bn_sub_words() and bn_add_words() except they take arrays with
5533 *) In 'openssl passwd', verify passwords read from the terminal
5534 unless the '-salt' option is used (which usually means that
5535 verification would just waste user's time since the resulting
5536 hash is going to be compared with some given password hash)
5537 or the new '-noverify' option is used.
5539 This is an incompatible change, but it does not affect
5540 non-interactive use of 'openssl passwd' (passwords on the command
5541 line, '-stdin' option, '-in ...' option) and thus should not
5545 *) Remove all references to RSAref, since there's no more need for it.
5548 *) Make DSO load along a path given through an environment variable
5549 (SHLIB_PATH) with shl_load().
5552 *) Constify the ENGINE code as a result of BIGNUM constification.
5553 Also constify the RSA code and most things related to it. In a
5554 few places, most notable in the depth of the ASN.1 code, ugly
5555 casts back to non-const were required (to be solved at a later
5559 *) Make it so the openssl application has all engines loaded by default.
5562 *) Constify the BIGNUM routines a little more.
5565 *) Add the following functions:
5567 ENGINE_load_cswift()
5569 ENGINE_load_atalla()
5571 ENGINE_load_builtin_engines()
5573 That way, an application can itself choose if external engines that
5574 are built-in in OpenSSL shall ever be used or not. The benefit is
5575 that applications won't have to be linked with libdl or other dso
5576 libraries unless it's really needed.
5578 Changed 'openssl engine' to load all engines on demand.
5579 Changed the engine header files to avoid the duplication of some
5580 declarations (they differed!).
5583 *) 'openssl engine' can now list capabilities.
5586 *) Better error reporting in 'openssl engine'.
5589 *) Never call load_dh_param(NULL) in s_server.
5592 *) Add engine application. It can currently list engines by name and
5593 identity, and test if they are actually available.
5596 *) Improve RPM specification file by forcing symbolic linking and making
5597 sure the installed documentation is also owned by root.root.
5598 [Damien Miller <djm@mindrot.org>]
5600 *) Give the OpenSSL applications more possibilities to make use of
5601 keys (public as well as private) handled by engines.
5604 *) Add OCSP code that comes from CertCo.
5607 *) Add VMS support for the Rijndael code.
5610 *) Added untested support for Nuron crypto accelerator.
5613 *) Add support for external cryptographic devices. This code was
5614 previously distributed separately as the "engine" branch.
5615 [Geoff Thorpe, Richard Levitte]
5617 *) Rework the filename-translation in the DSO code. It is now possible to
5618 have far greater control over how a "name" is turned into a filename
5619 depending on the operating environment and any oddities about the
5620 different shared library filenames on each system.
5623 *) Support threads on FreeBSD-elf in Configure.
5626 *) Fix for SHA1 assembly problem with MASM: it produces
5627 warnings about corrupt line number information when assembling
5628 with debugging information. This is caused by the overlapping
5630 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5633 NCONF_get_number() has no error checking at all. As a replacement,
5634 NCONF_get_number_e() is defined (_e for "error checking") and is
5635 promoted strongly. The old NCONF_get_number is kept around for
5636 binary backward compatibility.
5637 Make it possible for methods to load from something other than a BIO,
5638 by providing a function pointer that is given a name instead of a BIO.
5639 For example, this could be used to load configuration data from an
5643 *) Fix for non blocking accept BIOs. Added new I/O special reason
5644 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5645 with non blocking I/O was not possible because no retry code was
5646 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5650 *) Added the beginnings of Rijndael support.
5653 *) Fix for bug in DirectoryString mask setting. Add support for
5654 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5655 to allow certificate printing to more controllable, additional
5656 'certopt' option to 'x509' to allow new printing options to be
5660 *) Clean old EAY MD5 hack from e_os.h.
5663 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5665 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5666 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5667 [Joe Orton, Steve Henson]
5669 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5671 *) Fix additional bug revealed by the NISCC test suite:
5673 Stop bug triggering large recursion when presented with
5674 certain ASN.1 tags (CVE-2003-0851)
5677 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5679 *) Fix various bugs revealed by running the NISCC test suite:
5681 Stop out of bounds reads in the ASN1 code when presented with
5682 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5684 If verify callback ignores invalid public key errors don't try to check
5685 certificate signature with the NULL public key.
5689 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5690 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5694 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5695 extra data after the compression methods not only for TLS 1.0
5696 but also for SSL 3.0 (as required by the specification).
5697 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5699 *) Change X509_certificate_type() to mark the key as exported/exportable
5700 when it's 512 *bits* long, not 512 bytes.
5703 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5705 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5706 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5707 a protocol version number mismatch like a decryption error
5708 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5711 *) Turn on RSA blinding by default in the default implementation
5712 to avoid a timing attack. Applications that don't want it can call
5713 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5714 They would be ill-advised to do so in most cases.
5715 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5717 *) Change RSA blinding code so that it works when the PRNG is not
5718 seeded (in this case, the secret RSA exponent is abused as
5719 an unpredictable seed -- if it is not unpredictable, there
5720 is no point in blinding anyway). Make RSA blinding thread-safe
5721 by remembering the creator's thread ID in rsa->blinding and
5722 having all other threads use local one-time blinding factors
5723 (this requires more computation than sharing rsa->blinding, but
5724 avoids excessive locking; and if an RSA object is not shared
5725 between threads, blinding will still be very fast).
5728 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5730 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5731 via timing by performing a MAC computation even if incorrrect
5732 block cipher padding has been found. This is a countermeasure
5733 against active attacks where the attacker has to distinguish
5734 between bad padding and a MAC verification error. (CVE-2003-0078)
5736 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5737 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5738 Martin Vuagnoux (EPFL, Ilion)]
5740 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5742 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5743 memory from it's contents. This is done with a counter that will
5744 place alternating values in each byte. This can be used to solve
5745 two issues: 1) the removal of calls to memset() by highly optimizing
5746 compilers, and 2) cleansing with other values than 0, since those can
5747 be read through on certain media, for example a swap space on disk.
5750 *) Bugfix: client side session caching did not work with external caching,
5751 because the session->cipher setting was not restored when reloading
5752 from the external cache. This problem was masked, when
5753 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5754 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5757 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5758 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5759 [Zeev Lieber <zeev-l@yahoo.com>]
5761 *) Undo an undocumented change introduced in 0.9.6e which caused
5762 repeated calls to OpenSSL_add_all_ciphers() and
5763 OpenSSL_add_all_digests() to be ignored, even after calling
5767 *) Change the default configuration reader to deal with last line not
5768 being properly terminated.
5771 *) Change X509_NAME_cmp() so it applies the special rules on handling
5772 DN values that are of type PrintableString, as well as RDNs of type
5773 emailAddress where the value has the type ia5String.
5774 [stefank@valicert.com via Richard Levitte]
5776 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5777 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5778 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5779 the bitwise-OR of the two for use by the majority of applications
5780 wanting this behaviour, and update the docs. The documented
5781 behaviour and actual behaviour were inconsistent and had been
5782 changing anyway, so this is more a bug-fix than a behavioural
5784 [Geoff Thorpe, diagnosed by Nadav Har'El]
5786 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5787 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5790 *) Fix initialization code race conditions in
5791 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5792 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5793 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5794 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5795 ssl2_get_cipher_by_char(),
5796 ssl3_get_cipher_by_char().
5797 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5799 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5800 the cached sessions are flushed, as the remove_cb() might use ex_data
5801 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5802 (see [openssl.org #212]).
5803 [Geoff Thorpe, Lutz Jaenicke]
5805 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5806 length, instead of the encoding length to d2i_ASN1_OBJECT.
5809 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5811 *) [In 0.9.6g-engine release:]
5812 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5813 [Lynn Gazis <lgazis@rainbow.com>]
5815 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5817 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5818 and get fix the header length calculation.
5819 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5820 Alon Kantor <alonk@checkpoint.com> (and others),
5823 *) Use proper error handling instead of 'assertions' in buffer
5824 overflow checks added in 0.9.6e. This prevents DoS (the
5825 assertions could call abort()).
5826 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5828 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5830 *) Add various sanity checks to asn1_get_length() to reject
5831 the ASN1 length bytes if they exceed sizeof(long), will appear
5832 negative or the content length exceeds the length of the
5834 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5836 *) Fix cipher selection routines: ciphers without encryption had no flags
5837 for the cipher strength set and where therefore not handled correctly
5838 by the selection routines (PR #130).
5841 *) Fix EVP_dsa_sha macro.
5845 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5846 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5847 that was added in OpenSSL 0.9.6d.
5849 As the countermeasure turned out to be incompatible with some
5850 broken SSL implementations, the new option is part of SSL_OP_ALL.
5851 SSL_OP_ALL is usually employed when compatibility with weird SSL
5852 implementations is desired (e.g. '-bugs' option to 's_client' and
5853 's_server'), so the new option is automatically set in many
5857 *) Changes in security patch:
5859 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5860 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5861 Air Force Materiel Command, USAF, under agreement number
5864 *) Add various sanity checks to asn1_get_length() to reject
5865 the ASN1 length bytes if they exceed sizeof(long), will appear
5866 negative or the content length exceeds the length of the
5867 supplied buffer. (CVE-2002-0659)
5868 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5870 *) Assertions for various potential buffer overflows, not known to
5872 [Ben Laurie (CHATS)]
5874 *) Various temporary buffers to hold ASCII versions of integers were
5875 too small for 64 bit platforms. (CVE-2002-0655)
5876 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5878 *) Remote buffer overflow in SSL3 protocol - an attacker could
5879 supply an oversized session ID to a client. (CVE-2002-0656)
5880 [Ben Laurie (CHATS)]
5882 *) Remote buffer overflow in SSL2 protocol - an attacker could
5883 supply an oversized client master key. (CVE-2002-0656)
5884 [Ben Laurie (CHATS)]
5886 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5888 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5889 encoded as NULL) with id-dsa-with-sha1.
5890 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5892 *) Check various X509_...() return values in apps/req.c.
5893 [Nils Larsch <nla@trustcenter.de>]
5895 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5896 an end-of-file condition would erronously be flagged, when the CRLF
5897 was just at the end of a processed block. The bug was discovered when
5898 processing data through a buffering memory BIO handing the data to a
5899 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5900 <ptsekov@syntrex.com> and Nedelcho Stanev.
5903 *) Implement a countermeasure against a vulnerability recently found
5904 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5905 before application data chunks to avoid the use of known IVs
5906 with data potentially chosen by the attacker.
5909 *) Fix length checks in ssl3_get_client_hello().
5912 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5913 to prevent ssl3_read_internal() from incorrectly assuming that
5914 ssl3_read_bytes() found application data while handshake
5915 processing was enabled when in fact s->s3->in_read_app_data was
5916 merely automatically cleared during the initial handshake.
5917 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5919 *) Fix object definitions for Private and Enterprise: they were not
5920 recognized in their shortname (=lowercase) representation. Extend
5921 obj_dat.pl to issue an error when using undefined keywords instead
5922 of silently ignoring the problem (Svenning Sorensen
5923 <sss@sss.dnsalias.net>).
5926 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5927 generators, i.e. generators other than 2 and 5. (Previously, the
5928 code did not properly initialise the 'add' and 'rem' values to
5929 BN_generate_prime().)
5931 In the new general case, we do not insist that 'generator' is
5932 actually a primitive root: This requirement is rather pointless;
5933 a generator of the order-q subgroup is just as good, if not
5937 *) Map new X509 verification errors to alerts. Discovered and submitted by
5938 Tom Wu <tom@arcot.com>.
5941 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5942 returning non-zero before the data has been completely received
5943 when using non-blocking I/O.
5944 [Bodo Moeller; problem pointed out by John Hughes]
5946 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5947 [Ben Laurie, Lutz Jaenicke]
5949 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5950 Yoram Zahavi <YoramZ@gilian.com>).
5953 *) Add information about CygWin 1.3 and on, and preserve proper
5954 configuration for the versions before that.
5955 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5957 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5958 check whether we deal with a copy of a session and do not delete from
5959 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5960 <izhar@checkpoint.com>.
5963 *) Do not store session data into the internal session cache, if it
5964 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5965 flag is set). Proposed by Aslam <aslam@funk.com>.
5968 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5972 *) [In 0.9.6d-engine release:]
5973 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5974 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5976 *) Add the configuration target linux-s390x.
5977 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5979 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5980 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5981 variable as an indication that a ClientHello message has been
5982 received. As the flag value will be lost between multiple
5983 invocations of ssl3_accept when using non-blocking I/O, the
5984 function may not be aware that a handshake has actually taken
5985 place, thus preventing a new session from being added to the
5988 To avoid this problem, we now set s->new_session to 2 instead of
5989 using a local variable.
5990 [Lutz Jaenicke, Bodo Moeller]
5992 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5993 if the SSL_R_LENGTH_MISMATCH error is detected.
5994 [Geoff Thorpe, Bodo Moeller]
5996 *) New 'shared_ldflag' column in Configure platform table.
5999 *) Fix EVP_CIPHER_mode macro.
6000 ["Dan S. Camper" <dan@bti.net>]
6002 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6003 type, we must throw them away by setting rr->length to 0.
6004 [D P Chang <dpc@qualys.com>]
6006 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6008 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6009 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6010 worked incorrectly for those cases where range = 10..._2 and
6011 3*range is two bits longer than range.)
6014 *) Only add signing time to PKCS7 structures if it is not already
6018 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6019 OBJ_ld_ce should be OBJ_id_ce.
6020 Also some ip-pda OIDs in crypto/objects/objects.txt were
6021 incorrect (cf. RFC 3039).
6022 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6024 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6025 returns early because it has nothing to do.
6026 [Andy Schneider <andy.schneider@bjss.co.uk>]
6028 *) [In 0.9.6c-engine release:]
6029 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6030 [Andy Schneider <andy.schneider@bjss.co.uk>]
6032 *) [In 0.9.6c-engine release:]
6033 Add support for Cryptographic Appliance's keyserver technology.
6034 (Use engine 'keyclient')
6035 [Cryptographic Appliances and Geoff Thorpe]
6037 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6038 is called via tools/c89.sh because arguments have to be
6039 rearranged (all '-L' options must appear before the first object
6041 [Richard Shapiro <rshapiro@abinitio.com>]
6043 *) [In 0.9.6c-engine release:]
6044 Add support for Broadcom crypto accelerator cards, backported
6046 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6048 *) [In 0.9.6c-engine release:]
6049 Add support for SureWare crypto accelerator cards from
6050 Baltimore Technologies. (Use engine 'sureware')
6051 [Baltimore Technologies and Mark Cox]
6053 *) [In 0.9.6c-engine release:]
6054 Add support for crypto accelerator cards from Accelerated
6055 Encryption Processing, www.aep.ie. (Use engine 'aep')
6056 [AEP Inc. and Mark Cox]
6058 *) Add a configuration entry for gcc on UnixWare.
6059 [Gary Benson <gbenson@redhat.com>]
6061 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6062 messages are stored in a single piece (fixed-length part and
6063 variable-length part combined) and fix various bugs found on the way.
6066 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6067 instead. BIO_gethostbyname() does not know what timeouts are
6068 appropriate, so entries would stay in cache even when they have
6070 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6072 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6073 faced with a pathologically small ClientHello fragment that does
6074 not contain client_version: Instead of aborting with an error,
6075 simply choose the highest available protocol version (i.e.,
6076 TLS 1.0 unless it is disabled). In practice, ClientHello
6077 messages are never sent like this, but this change gives us
6078 strictly correct behaviour at least for TLS.
6081 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6082 never resets s->method to s->ctx->method when called from within
6083 one of the SSL handshake functions.
6084 [Bodo Moeller; problem pointed out by Niko Baric]
6086 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6087 (sent using the client's version number) if client_version is
6088 smaller than the protocol version in use. Also change
6089 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6090 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6091 the client will at least see that alert.
6094 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6098 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6099 client receives HelloRequest while in a handshake.
6100 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6102 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6103 should end in 'break', not 'goto end' which circuments various
6104 cleanups done in state SSL_ST_OK. But session related stuff
6105 must be disabled for SSL_ST_OK in the case that we just sent a
6108 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6109 before just sending a HelloRequest.
6110 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6112 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6113 reveal whether illegal block cipher padding was found or a MAC
6114 verification error occured. (Neither SSLerr() codes nor alerts
6115 are directly visible to potential attackers, but the information
6116 may leak via logfiles.)
6118 Similar changes are not required for the SSL 2.0 implementation
6119 because the number of padding bytes is sent in clear for SSL 2.0,
6120 and the extra bytes are just ignored. However ssl/s2_pkt.c
6121 failed to verify that the purported number of padding bytes is in
6125 *) Add OpenUNIX-8 support including shared libraries
6126 (Boyd Lynn Gerber <gerberb@zenez.com>).
6129 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6130 'wristwatch attack' using huge encoding parameters (cf.
6131 James H. Manger's CRYPTO 2001 paper). Note that the
6132 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6133 encoding parameters and hence was not vulnerable.
6136 *) BN_sqr() bug fix.
6137 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6139 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6140 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6141 followed by modular reduction.
6142 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6144 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6145 equivalent based on BN_pseudo_rand() instead of BN_rand().
6148 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6149 This function was broken, as the check for a new client hello message
6150 to handle SGC did not allow these large messages.
6151 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6154 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6157 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6158 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6161 *) Rework the configuration and shared library support for Tru64 Unix.
6162 The configuration part makes use of modern compiler features and
6163 still retains old compiler behavior for those that run older versions
6164 of the OS. The shared library support part includes a variant that
6165 uses the RPATH feature, and is available through the special
6166 configuration target "alpha-cc-rpath", which will never be selected
6168 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6170 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6171 with the same message size as in ssl3_get_certificate_request().
6172 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6173 messages might inadvertently be reject as too long.
6174 [Petr Lampa <lampa@fee.vutbr.cz>]
6176 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6179 *) Modified SSL library such that the verify_callback that has been set
6180 specificly for an SSL object with SSL_set_verify() is actually being
6181 used. Before the change, a verify_callback set with this function was
6182 ignored and the verify_callback() set in the SSL_CTX at the time of
6183 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6184 to allow the necessary settings.
6187 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6188 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6189 done automatically (in contradiction to the requirements of the C
6190 standard). This made problems when used from OpenSSH.
6193 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6194 dh->length and always used
6196 BN_rand_range(priv_key, dh->p).
6198 BN_rand_range() is not necessary for Diffie-Hellman, and this
6199 specific range makes Diffie-Hellman unnecessarily inefficient if
6200 dh->length (recommended exponent length) is much smaller than the
6201 length of dh->p. We could use BN_rand_range() if the order of
6202 the subgroup was stored in the DH structure, but we only have
6207 BN_rand(priv_key, l, ...)
6209 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6215 RSA_eay_public_encrypt
6216 RSA_eay_private_decrypt
6217 RSA_eay_private_encrypt (signing)
6218 RSA_eay_public_decrypt (signature verification)
6220 (default implementations for RSA_public_encrypt,
6221 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6222 always reject numbers >= n.
6225 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6226 to synchronize access to 'locking_thread'. This is necessary on
6227 systems where access to 'locking_thread' (an 'unsigned long'
6228 variable) is not atomic.
6231 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6232 *before* setting the 'crypto_lock_rand' flag. The previous code had
6233 a race condition if 0 is a valid thread ID.
6234 [Travis Vitek <vitek@roguewave.com>]
6236 *) Add support for shared libraries under Irix.
6237 [Albert Chin-A-Young <china@thewrittenword.com>]
6239 *) Add configuration option to build on Linux on both big-endian and
6241 [Ralf Baechle <ralf@uni-koblenz.de>]
6243 *) Add the possibility to create shared libraries on HP-UX.
6246 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6248 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6249 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6250 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6251 PRNG state recovery was possible based on the output of
6252 one PRNG request appropriately sized to gain knowledge on
6253 'md' followed by enough consecutive 1-byte PRNG requests
6254 to traverse all of 'state'.
6256 1. When updating 'md_local' (the current thread's copy of 'md')
6257 during PRNG output generation, hash all of the previous
6258 'md_local' value, not just the half used for PRNG output.
6260 2. Make the number of bytes from 'state' included into the hash
6261 independent from the number of PRNG bytes requested.
6263 The first measure alone would be sufficient to avoid
6264 Markku-Juhani's attack. (Actually it had never occurred
6265 to me that the half of 'md_local' used for chaining was the
6266 half from which PRNG output bytes were taken -- I had always
6267 assumed that the secret half would be used.) The second
6268 measure makes sure that additional data from 'state' is never
6269 mixed into 'md_local' in small portions; this heuristically
6270 further strengthens the PRNG.
6273 *) Fix crypto/bn/asm/mips3.s.
6276 *) When only the key is given to "enc", the IV is undefined. Print out
6277 an error message in this case.
6280 *) Handle special case when X509_NAME is empty in X509 printing routines.
6283 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6284 positive and less than q.
6287 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6288 used: it isn't thread safe and the add_lock_callback should handle
6290 [Paul Rose <Paul.Rose@bridge.com>]
6292 *) Verify that incoming data obeys the block size in
6293 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6297 [Ulf Möller, Bodo Möller]
6299 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6300 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6301 when fixing the server behaviour for backwards-compatible 'client
6302 hello' messages. (Note that the attack is impractical against
6303 SSL 3.0 and TLS 1.0 anyway because length and version checking
6304 means that the probability of guessing a valid ciphertext is
6305 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6308 Before 0.9.5, the countermeasure (hide the error by generating a
6309 random 'decryption result') did not work properly because
6310 ERR_clear_error() was missing, meaning that SSL_get_error() would
6311 detect the supposedly ignored error.
6313 Both problems are now fixed.
6316 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6317 (previously it was 1024).
6320 *) Fix for compatibility mode trust settings: ignore trust settings
6321 unless some valid trust or reject settings are present.
6324 *) Fix for blowfish EVP: its a variable length cipher.
6327 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6328 parameters in DSA public key structures and return an error in the
6329 DSA routines if parameters are absent.
6332 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6333 in the current directory if neither $RANDFILE nor $HOME was set.
6334 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6335 caused some confusion to Windows users who haven't defined $HOME.
6336 Thus RAND_file_name() is changed again: e_os.h can define a
6337 DEFAULT_HOME, which will be used if $HOME is not set.
6338 For Windows, we use "C:"; on other platforms, we still require
6339 environment variables.
6341 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6342 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6343 having multiple threads call RAND_poll() concurrently.
6346 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6347 combination of a flag and a thread ID variable.
6348 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6349 flag), *other* threads can enter ssleay_add_bytes without obeying
6350 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6351 that they do not hold after the first thread unsets add_do_not_lock).
6354 *) Change bctest again: '-x' expressions are not available in all
6358 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6360 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6361 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6363 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6364 the default extension for executables, if any. Also, make the perl
6365 scripts that use symlink() to test if it really exists and use "cp"
6366 if it doesn't. All this made OpenSSL compilable and installable in
6370 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6371 If SEQUENCE is length is indefinite just set c->slen to the total
6372 amount of data available.
6373 [Steve Henson, reported by shige@FreeBSD.org]
6374 [This change does not apply to 0.9.7.]
6376 *) Change bctest to avoid here-documents inside command substitution
6377 (workaround for FreeBSD /bin/sh bug).
6378 For compatibility with Ultrix, avoid shell functions (introduced
6379 in the bctest version that searches along $PATH).
6382 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6383 with des_encrypt() defined on some operating systems, like Solaris
6387 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6388 On the Importance of Eliminating Errors in Cryptographic
6389 Computations, J. Cryptology 14 (2001) 2, 101-119,
6390 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6393 *) MIPS assembler BIGNUM division bug fix.
6396 *) Disabled incorrect Alpha assembler code.
6399 *) Fix PKCS#7 decode routines so they correctly update the length
6400 after reading an EOC for the EXPLICIT tag.
6402 [This change does not apply to 0.9.7.]
6404 *) Fix bug in PKCS#12 key generation routines. This was triggered
6405 if a 3DES key was generated with a 0 initial byte. Include
6406 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6407 (but broken) behaviour.
6410 *) Enhance bctest to search for a working bc along $PATH and print
6412 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6414 *) Fix memory leaks in err.c: free err_data string if necessary;
6415 don't write to the wrong index in ERR_set_error_data.
6418 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6422 *) Replace rdtsc with _emit statements for VC++ version 5.
6423 [Jeremy Cooper <jeremy@baymoo.org>]
6425 *) Make it possible to reuse SSLv2 sessions.
6428 *) In copy_email() check for >= 0 as a return value for
6429 X509_NAME_get_index_by_NID() since 0 is a valid index.
6430 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6432 *) Avoid coredump with unsupported or invalid public keys by checking if
6433 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6434 PKCS7_verify() fails with non detached data.
6437 *) Don't use getenv in library functions when run as setuid/setgid.
6438 New function OPENSSL_issetugid().
6441 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6442 due to incorrect handling of multi-threading:
6444 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6446 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6448 3. Count how many times MemCheck_off() has been called so that
6449 nested use can be treated correctly. This also avoids
6450 inband-signalling in the previous code (which relied on the
6451 assumption that thread ID 0 is impossible).
6454 *) Add "-rand" option also to s_client and s_server.
6457 *) Fix CPU detection on Irix 6.x.
6458 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6459 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6461 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6464 [This change does not apply to 0.9.7.]
6466 *) Use the cached encoding of an X509_NAME structure rather than
6467 copying it. This is apparently the reason for the libsafe "errors"
6468 but the code is actually correct.
6471 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6472 Bleichenbacher's DSA attack.
6473 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6474 to be set and top=0 forces the highest bit to be set; top=-1 is new
6475 and leaves the highest bit random.
6476 [Ulf Moeller, Bodo Moeller]
6478 *) In the NCONF_...-based implementations for CONF_... queries
6479 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6480 a temporary CONF structure with the data component set to NULL
6481 (which gives segmentation faults in lh_retrieve).
6482 Instead, use NULL for the CONF pointer in CONF_get_string and
6483 CONF_get_number (which may use environment variables) and directly
6484 return NULL from CONF_get_section.
6487 *) Fix potential buffer overrun for EBCDIC.
6490 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6491 keyUsage if basicConstraints absent for a CA.
6494 *) Make SMIME_write_PKCS7() write mail header values with a format that
6495 is more generally accepted (no spaces before the semicolon), since
6496 some programs can't parse those values properly otherwise. Also make
6497 sure BIO's that break lines after each write do not create invalid
6501 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6502 macros previously used would not encode an empty SEQUENCE OF
6503 and break the signature.
6505 [This change does not apply to 0.9.7.]
6507 *) Zero the premaster secret after deriving the master secret in
6511 *) Add some EVP_add_digest_alias registrations (as found in
6512 OpenSSL_add_all_digests()) to SSL_library_init()
6513 aka OpenSSL_add_ssl_algorithms(). This provides improved
6514 compatibility with peers using X.509 certificates
6515 with unconventional AlgorithmIdentifier OIDs.
6518 *) Fix for Irix with NO_ASM.
6519 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6521 *) ./config script fixes.
6522 [Ulf Moeller, Richard Levitte]
6524 *) Fix 'openssl passwd -1'.
6527 *) Change PKCS12_key_gen_asc() so it can cope with non null
6528 terminated strings whose length is passed in the passlen
6529 parameter, for example from PEM callbacks. This was done
6530 by adding an extra length parameter to asc2uni().
6531 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6533 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6534 call failed, free the DSA structure.
6537 *) Fix to uni2asc() to cope with zero length Unicode strings.
6538 These are present in some PKCS#12 files.
6541 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6542 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6543 when writing a 32767 byte record.
6544 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6546 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6547 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6549 (RSA objects have a reference count access to which is protected
6550 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6551 so they are meant to be shared between threads.)
6552 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6553 "Reddie, Steven" <Steven.Reddie@ca.com>]
6555 *) Fix a deadlock in CRYPTO_mem_leaks().
6558 *) Use better test patterns in bntest.
6561 *) rand_win.c fix for Borland C.
6564 *) BN_rshift bugfix for n == 0.
6567 *) Add a 'bctest' script that checks for some known 'bc' bugs
6568 so that 'make test' does not abort just because 'bc' is broken.
6571 *) Store verify_result within SSL_SESSION also for client side to
6572 avoid potential security hole. (Re-used sessions on the client side
6573 always resulted in verify_result==X509_V_OK, not using the original
6574 result of the server certificate verification.)
6577 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6578 SSL3_RT_APPLICATION_DATA, return 0.
6579 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6583 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6584 releases, have been re-implemented by renaming the previous
6585 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6586 and ssl3_read_internal, respectively, and adding 'peek' parameters
6587 to them. The new ssl[23]_{read,peek} functions are calls to
6588 ssl[23]_read_internal with the 'peek' flag set appropriately.
6589 A 'peek' parameter has also been added to ssl3_read_bytes, which
6590 does the actual work for ssl3_read_internal.
6593 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6594 the method-specific "init()" handler. Also clean up ex_data after
6595 calling the method-specific "finish()" handler. Previously, this was
6596 happening the other way round.
6599 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6600 The previous value, 12, was not always sufficient for BN_mod_exp().
6603 *) Make sure that shared libraries get the internal name engine with
6604 the full version number and not just 0. This should mark the
6605 shared libraries as not backward compatible. Of course, this should
6606 be changed again when we can guarantee backward binary compatibility.
6609 *) Fix typo in get_cert_by_subject() in by_dir.c
6610 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6612 *) Rework the system to generate shared libraries:
6614 - Make note of the expected extension for the shared libraries and
6615 if there is a need for symbolic links from for example libcrypto.so.0
6616 to libcrypto.so.0.9.7. There is extended info in Configure for
6619 - Make as few rebuilds of the shared libraries as possible.
6621 - Still avoid linking the OpenSSL programs with the shared libraries.
6623 - When installing, install the shared libraries separately from the
6627 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6629 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6630 and not in SSL_clear because the latter is also used by the
6631 accept/connect functions; previously, the settings made by
6632 SSL_set_read_ahead would be lost during the handshake.
6633 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6635 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6636 Previously, it would create entries for disableed algorithms no
6640 *) Added several new manual pages for SSL_* function.
6643 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6645 *) In ssl23_get_client_hello, generate an error message when faced
6646 with an initial SSL 3.0/TLS record that is too small to contain the
6647 first two bytes of the ClientHello message, i.e. client_version.
6648 (Note that this is a pathologic case that probably has never happened
6649 in real life.) The previous approach was to use the version number
6650 from the record header as a substitute; but our protocol choice
6651 should not depend on that one because it is not authenticated
6652 by the Finished messages.
6655 *) More robust randomness gathering functions for Windows.
6656 [Jeffrey Altman <jaltman@columbia.edu>]
6658 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6659 not set then we don't setup the error code for issuer check errors
6660 to avoid possibly overwriting other errors which the callback does
6661 handle. If an application does set the flag then we assume it knows
6662 what it is doing and can handle the new informational codes
6666 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6667 a general "ANY" type, as such it should be able to decode anything
6668 including tagged types. However it didn't check the class so it would
6669 wrongly interpret tagged types in the same way as their universal
6670 counterpart and unknown types were just rejected. Changed so that the
6671 tagged and unknown types are handled in the same way as a SEQUENCE:
6672 that is the encoding is stored intact. There is also a new type
6673 "V_ASN1_OTHER" which is used when the class is not universal, in this
6674 case we have no idea what the actual type is so we just lump them all
6678 *) On VMS, stdout may very well lead to a file that is written to
6679 in a record-oriented fashion. That means that every write() will
6680 write a separate record, which will be read separately by the
6681 programs trying to read from it. This can be very confusing.
6683 The solution is to put a BIO filter in the way that will buffer
6684 text until a linefeed is reached, and then write everything a
6685 line at a time, so every record written will be an actual line,
6686 not chunks of lines and not (usually doesn't happen, but I've
6687 seen it once) several lines in one record. BIO_f_linebuffer() is
6690 Currently, it's a VMS-only method, because that's where it has
6691 been tested well enough.
6694 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6695 it can return incorrect results.
6696 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6697 but it was in 0.9.6-beta[12].)
6700 *) Disable the check for content being present when verifying detached
6701 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6702 include zero length content when signing messages.
6705 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6706 BIO_ctrl (for BIO pairs).
6709 *) Add DSO method for VMS.
6712 *) Bug fix: Montgomery multiplication could produce results with the
6716 *) Add RPM specification openssl.spec and modify it to build three
6717 packages. The default package contains applications, application
6718 documentation and run-time libraries. The devel package contains
6719 include files, static libraries and function documentation. The
6720 doc package contains the contents of the doc directory. The original
6721 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6724 *) Add a large number of documentation files for many SSL routines.
6725 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6727 *) Add a configuration entry for Sony News 4.
6728 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6730 *) Don't set the two most significant bits to one when generating a
6731 random number < q in the DSA library.
6734 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6735 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6736 the underlying transport is blocking) if a handshake took place.
6737 (The default behaviour is needed by applications such as s_client
6738 and s_server that use select() to determine when to use SSL_read;
6739 but for applications that know in advance when to expect data, it
6740 just makes things more complicated.)
6743 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6747 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6748 work better on such systems.
6749 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6751 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6752 Update PKCS12_parse() so it copies the friendlyName and the
6753 keyid to the certificates aux info.
6756 *) Fix bug in PKCS7_verify() which caused an infinite loop
6757 if there was more than one signature.
6758 [Sven Uszpelkat <su@celocom.de>]
6760 *) Major change in util/mkdef.pl to include extra information
6761 about each symbol, as well as presentig variables as well
6762 as functions. This change means that there's n more need
6763 to rebuild the .num files when some algorithms are excluded.
6766 *) Allow the verify time to be set by an application,
6767 rather than always using the current time.
6770 *) Phase 2 verify code reorganisation. The certificate
6771 verify code now looks up an issuer certificate by a
6772 number of criteria: subject name, authority key id
6773 and key usage. It also verifies self signed certificates
6774 by the same criteria. The main comparison function is
6775 X509_check_issued() which performs these checks.
6777 Lot of changes were necessary in order to support this
6778 without completely rewriting the lookup code.
6780 Authority and subject key identifier are now cached.
6782 The LHASH 'certs' is X509_STORE has now been replaced
6783 by a STACK_OF(X509_OBJECT). This is mainly because an
6784 LHASH can't store or retrieve multiple objects with
6785 the same hash value.
6787 As a result various functions (which were all internal
6788 use only) have changed to handle the new X509_STORE
6789 structure. This will break anything that messed round
6790 with X509_STORE internally.
6792 The functions X509_STORE_add_cert() now checks for an
6793 exact match, rather than just subject name.
6795 The X509_STORE API doesn't directly support the retrieval
6796 of multiple certificates matching a given criteria, however
6797 this can be worked round by performing a lookup first
6798 (which will fill the cache with candidate certificates)
6799 and then examining the cache for matches. This is probably
6800 the best we can do without throwing out X509_LOOKUP
6801 entirely (maybe later...).
6803 The X509_VERIFY_CTX structure has been enhanced considerably.
6805 All certificate lookup operations now go via a get_issuer()
6806 callback. Although this currently uses an X509_STORE it
6807 can be replaced by custom lookups. This is a simple way
6808 to bypass the X509_STORE hackery necessary to make this
6809 work and makes it possible to use more efficient techniques
6810 in future. A very simple version which uses a simple
6811 STACK for its trusted certificate store is also provided
6812 using X509_STORE_CTX_trusted_stack().
6814 The verify_cb() and verify() callbacks now have equivalents
6815 in the X509_STORE_CTX structure.
6817 X509_STORE_CTX also has a 'flags' field which can be used
6818 to customise the verify behaviour.
6821 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6822 excludes S/MIME capabilities.
6825 *) When a certificate request is read in keep a copy of the
6826 original encoding of the signed data and use it when outputing
6827 again. Signatures then use the original encoding rather than
6828 a decoded, encoded version which may cause problems if the
6829 request is improperly encoded.
6832 *) For consistency with other BIO_puts implementations, call
6833 buffer_write(b, ...) directly in buffer_puts instead of calling
6836 In BIO_puts, increment b->num_write as in BIO_write.
6837 [Peter.Sylvester@EdelWeb.fr]
6839 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6840 BN_zero, we may not return a BIGNUM with an array consisting of
6844 *) Avoid calling abort() from within the library when problems are
6845 detected, except if preprocessor symbols have been defined
6846 (such as REF_CHECK, BN_DEBUG etc.).
6849 *) New openssl application 'rsautl'. This utility can be
6850 used for low level RSA operations. DER public key
6851 BIO/fp routines also added.
6854 *) New Configure entry and patches for compiling on QNX 4.
6855 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6857 *) A demo state-machine implementation was sponsored by
6858 Nuron (http://www.nuron.com/) and is now available in
6859 demos/state_machine.
6862 *) New options added to the 'dgst' utility for signature
6863 generation and verification.
6866 *) Unrecognized PKCS#7 content types are now handled via a
6867 catch all ASN1_TYPE structure. This allows unsupported
6868 types to be stored as a "blob" and an application can
6869 encode and decode it manually.
6872 *) Fix various signed/unsigned issues to make a_strex.c
6874 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6876 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6877 length if passed a buffer. ASN1_INTEGER_to_BN failed
6878 if passed a NULL BN and its argument was negative.
6879 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6881 *) Modification to PKCS#7 encoding routines to output definite
6882 length encoding. Since currently the whole structures are in
6883 memory there's not real point in using indefinite length
6884 constructed encoding. However if OpenSSL is compiled with
6885 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6888 *) Added BIO_vprintf() and BIO_vsnprintf().
6891 *) Added more prefixes to parse for in the the strings written
6892 through a logging bio, to cover all the levels that are available
6893 through syslog. The prefixes are now:
6895 PANIC, EMERG, EMR => LOG_EMERG
6896 ALERT, ALR => LOG_ALERT
6897 CRIT, CRI => LOG_CRIT
6898 ERROR, ERR => LOG_ERR
6899 WARNING, WARN, WAR => LOG_WARNING
6900 NOTICE, NOTE, NOT => LOG_NOTICE
6901 INFO, INF => LOG_INFO
6902 DEBUG, DBG => LOG_DEBUG
6904 and as before, if none of those prefixes are present at the
6905 beginning of the string, LOG_ERR is chosen.
6907 On Win32, the LOG_* levels are mapped according to this:
6909 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6910 LOG_WARNING => EVENTLOG_WARNING_TYPE
6911 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6915 *) Made it possible to reconfigure with just the configuration
6916 argument "reconf" or "reconfigure". The command line arguments
6917 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6918 and are retrieved from there when reconfiguring.
6922 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6924 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6927 *) The obj_dat.pl script was messing up the sorting of object
6928 names. The reason was that it compared the quoted version
6929 of strings as a result "OCSP" > "OCSP Signing" because
6930 " > SPACE. Changed script to store unquoted versions of
6931 names and add quotes on output. It was also omitting some
6932 names from the lookup table if they were given a default
6933 value (that is if SN is missing it is given the same
6934 value as LN and vice versa), these are now added on the
6935 grounds that if an object has a name we should be able to
6936 look it up. Finally added warning output when duplicate
6937 short or long names are found.
6940 *) Changes needed for Tandem NSK.
6941 [Scott Uroff <scott@xypro.com>]
6943 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6944 RSA_padding_check_SSLv23(), special padding was never detected
6945 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6946 version rollback attacks was not effective.
6948 In s23_clnt.c, don't use special rollback-attack detection padding
6949 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6950 client; similarly, in s23_srvr.c, don't do the rollback check if
6951 SSL 2.0 is the only protocol enabled in the server.
6954 *) Make it possible to get hexdumps of unprintable data with 'openssl
6955 asn1parse'. By implication, the functions ASN1_parse_dump() and
6956 BIO_dump_indent() are added.
6959 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6960 these print out strings and name structures based on various
6961 flags including RFC2253 support and proper handling of
6962 multibyte characters. Added options to the 'x509' utility
6963 to allow the various flags to be set.
6966 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6967 Also change the functions X509_cmp_current_time() and
6968 X509_gmtime_adj() work with an ASN1_TIME structure,
6969 this will enable certificates using GeneralizedTime in validity
6970 dates to be checked.
6973 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6974 negative public key encodings) on by default,
6975 NO_NEG_PUBKEY_BUG can be set to disable it.
6978 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6979 content octets. An i2c_ASN1_OBJECT is unnecessary because
6980 the encoding can be trivially obtained from the structure.
6983 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6984 not read locks (CRYPTO_r_[un]lock).
6987 *) A first attempt at creating official support for shared
6988 libraries through configuration. I've kept it so the
6989 default is static libraries only, and the OpenSSL programs
6990 are always statically linked for now, but there are
6991 preparations for dynamic linking in place.
6992 This has been tested on Linux and Tru64.
6995 *) Randomness polling function for Win9x, as described in:
6996 Peter Gutmann, Software Generation of Practically Strong
7000 *) Fix so PRNG is seeded in req if using an already existing
7004 *) New options to smime application. -inform and -outform
7005 allow alternative formats for the S/MIME message including
7006 PEM and DER. The -content option allows the content to be
7007 specified separately. This should allow things like Netscape
7008 form signing output easier to verify.
7011 *) Fix the ASN1 encoding of tags using the 'long form'.
7014 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7015 STRING types. These convert content octets to and from the
7016 underlying type. The actual tag and length octets are
7017 already assumed to have been read in and checked. These
7018 are needed because all other string types have virtually
7019 identical handling apart from the tag. By having versions
7020 of the ASN1 functions that just operate on content octets
7021 IMPLICIT tagging can be handled properly. It also allows
7022 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7023 and ASN1_INTEGER are identical apart from the tag.
7026 *) Change the handling of OID objects as follows:
7028 - New object identifiers are inserted in objects.txt, following
7029 the syntax given in objects.README.
7030 - objects.pl is used to process obj_mac.num and create a new
7032 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7035 This is currently kind of a hack, and the perl code in objects.pl
7036 isn't very elegant, but it works as I intended. The simplest way
7037 to check that it worked correctly is to look in obj_dat.h and
7038 check the array nid_objs and make sure the objects haven't moved
7039 around (this is important!). Additions are OK, as well as
7040 consistent name changes.
7043 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7046 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7047 The given file adds to whatever has already been seeded into the
7048 random pool through the RANDFILE configuration file option or
7049 environment variable, or the default random state file.
7052 *) mkstack.pl now sorts each macro group into lexical order.
7053 Previously the output order depended on the order the files
7054 appeared in the directory, resulting in needless rewriting
7058 *) Patches to make OpenSSL compile under Win32 again. Mostly
7059 work arounds for the VC++ problem that it treats func() as
7060 func(void). Also stripped out the parts of mkdef.pl that
7061 added extra typesafe functions: these no longer exist.
7064 *) Reorganisation of the stack code. The macros are now all
7065 collected in safestack.h . Each macro is defined in terms of
7066 a "stack macro" of the form SKM_<name>(type, a, b). The
7067 DEBUG_SAFESTACK is now handled in terms of function casts,
7068 this has the advantage of retaining type safety without the
7069 use of additional functions. If DEBUG_SAFESTACK is not defined
7070 then the non typesafe macros are used instead. Also modified the
7071 mkstack.pl script to handle the new form. Needs testing to see
7072 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7073 the default if no major problems. Similar behaviour for ASN1_SET_OF
7074 and PKCS12_STACK_OF.
7077 *) When some versions of IIS use the 'NET' form of private key the
7078 key derivation algorithm is different. Normally MD5(password) is
7079 used as a 128 bit RC4 key. In the modified case
7080 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7081 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7082 as the old Netscape_RSA functions except they have an additional
7083 'sgckey' parameter which uses the modified algorithm. Also added
7084 an -sgckey command line option to the rsa utility. Thanks to
7085 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7086 algorithm to openssl-dev.
7089 *) The evp_local.h macros were using 'c.##kname' which resulted in
7090 invalid expansion on some systems (SCO 5.0.5 for example).
7091 Corrected to 'c.kname'.
7092 [Phillip Porch <root@theporch.com>]
7094 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7095 a STACK of email addresses from a certificate or request, these look
7096 in the subject name and the subject alternative name extensions and
7097 omit any duplicate addresses.
7100 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7101 This makes DSA verification about 2 % faster.
7104 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7105 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7106 plus overhead for 1024 bit moduli).
7107 This makes exponentiations about 0.5 % faster for 1024 bit
7108 exponents (as measured by "openssl speed rsa2048").
7111 *) Rename memory handling macros to avoid conflicts with other
7113 Malloc => OPENSSL_malloc
7114 Malloc_locked => OPENSSL_malloc_locked
7115 Realloc => OPENSSL_realloc
7116 Free => OPENSSL_free
7119 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7120 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7123 *) CygWin32 support.
7124 [John Jarvie <jjarvie@newsguy.com>]
7126 *) The type-safe stack code has been rejigged. It is now only compiled
7127 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7128 by default all type-specific stack functions are "#define"d back to
7129 standard stack functions. This results in more streamlined output
7130 but retains the type-safety checking possibilities of the original
7134 *) The STACK code has been cleaned up, and certain type declarations
7135 that didn't make a lot of sense have been brought in line. This has
7136 also involved a cleanup of sorts in safestack.h to more correctly
7137 map type-safe stack functions onto their plain stack counterparts.
7138 This work has also resulted in a variety of "const"ifications of
7139 lots of the code, especially "_cmp" operations which should normally
7140 be prototyped with "const" parameters anyway.
7143 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7144 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7145 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7146 where all of 'md' is used each time the PRNG is used, but 'state'
7147 is used only indexed by a cyclic counter. As entropy may not be
7148 well distributed from the beginning, 'md' is important as a
7149 chaining variable. However, the output function chains only half
7150 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7151 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7152 in all of 'state' being rewritten, with the new values depending
7153 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7156 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7157 the handshake is continued after ssl_verify_cert_chain();
7158 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7159 can lead to 'unexplainable' connection aborts later.
7160 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7162 *) Major EVP API cipher revision.
7163 Add hooks for extra EVP features. This allows various cipher
7164 parameters to be set in the EVP interface. Support added for variable
7165 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7166 setting of RC2 and RC5 parameters.
7168 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7171 Remove lots of duplicated code from the EVP library. For example *every*
7172 cipher init() function handles the 'iv' in the same way according to the
7173 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7174 for CFB and OFB modes they zero ctx->num.
7176 New functionality allows removal of S/MIME code RC2 hack.
7178 Most of the routines have the same form and so can be declared in terms
7181 By shifting this to the top level EVP_CipherInit() it can be removed from
7182 all individual ciphers. If the cipher wants to handle IVs or keys
7183 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7186 Change lots of functions like EVP_EncryptUpdate() to now return a
7187 value: although software versions of the algorithms cannot fail
7188 any installed hardware versions can.
7191 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7192 this option is set, tolerate broken clients that send the negotiated
7193 protocol version number instead of the requested protocol version
7197 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7198 i.e. non-zero for export ciphersuites, zero otherwise.
7199 Previous versions had this flag inverted, inconsistent with
7200 rsa_tmp_cb (..._TMP_RSA_CB).
7201 [Bodo Moeller; problem reported by Amit Chopra]
7203 *) Add missing DSA library text string. Work around for some IIS
7204 key files with invalid SEQUENCE encoding.
7207 *) Add a document (doc/standards.txt) that list all kinds of standards
7208 and so on that are implemented in OpenSSL.
7211 *) Enhance c_rehash script. Old version would mishandle certificates
7212 with the same subject name hash and wouldn't handle CRLs at all.
7213 Added -fingerprint option to crl utility, to support new c_rehash
7217 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7220 *) Fix for SSL server purpose checking. Server checking was
7221 rejecting certificates which had extended key usage present
7222 but no ssl client purpose.
7223 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7225 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7226 is a little unclear about how a blank password is handled.
7227 Since the password in encoded as a BMPString with terminating
7228 double NULL a zero length password would end up as just the
7229 double NULL. However no password at all is different and is
7230 handled differently in the PKCS#12 key generation code. NS
7231 treats a blank password as zero length. MSIE treats it as no
7232 password on export: but it will try both on import. We now do
7233 the same: PKCS12_parse() tries zero length and no password if
7234 the password is set to "" or NULL (NULL is now a valid password:
7235 it wasn't before) as does the pkcs12 application.
7238 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7239 perror when PEM_read_bio_X509_REQ fails, the error message must
7240 be obtained from the error queue.
7243 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7244 it in ERR_remove_state if appropriate, and change ERR_get_state
7245 accordingly to avoid race conditions (this is necessary because
7246 thread_hash is no longer constant once set).
7249 *) Bugfix for linux-elf makefile.one.
7252 *) RSA_get_default_method() will now cause a default
7253 RSA_METHOD to be chosen if one doesn't exist already.
7254 Previously this was only set during a call to RSA_new()
7255 or RSA_new_method(NULL) meaning it was possible for
7256 RSA_get_default_method() to return NULL.
7259 *) Added native name translation to the existing DSO code
7260 that will convert (if the flag to do so is set) filenames
7261 that are sufficiently small and have no path information
7262 into a canonical native form. Eg. "blah" converted to
7263 "libblah.so" or "blah.dll" etc.
7266 *) New function ERR_error_string_n(e, buf, len) which is like
7267 ERR_error_string(e, buf), but writes at most 'len' bytes
7268 including the 0 terminator. For ERR_error_string_n, 'buf'
7270 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7272 *) CONF library reworked to become more general. A new CONF
7273 configuration file reader "class" is implemented as well as a
7274 new functions (NCONF_*, for "New CONF") to handle it. The now
7275 old CONF_* functions are still there, but are reimplemented to
7276 work in terms of the new functions. Also, a set of functions
7277 to handle the internal storage of the configuration data is
7278 provided to make it easier to write new configuration file
7279 reader "classes" (I can definitely see something reading a
7280 configuration file in XML format, for example), called _CONF_*,
7281 or "the configuration storage API"...
7283 The new configuration file reading functions are:
7285 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7286 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7288 NCONF_default, NCONF_WIN32
7290 NCONF_dump_fp, NCONF_dump_bio
7292 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7293 NCONF_new creates a new CONF object. This works in the same way
7294 as other interfaces in OpenSSL, like the BIO interface.
7295 NCONF_dump_* dump the internal storage of the configuration file,
7296 which is useful for debugging. All other functions take the same
7297 arguments as the old CONF_* functions wth the exception of the
7298 first that must be a `CONF *' instead of a `LHASH *'.
7300 To make it easer to use the new classes with the old CONF_* functions,
7301 the function CONF_set_default_method is provided.
7304 *) Add '-tls1' option to 'openssl ciphers', which was already
7305 mentioned in the documentation but had not been implemented.
7306 (This option is not yet really useful because even the additional
7307 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7310 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7311 OpenSSL-based applications) load shared libraries and bind to
7312 them in a portable way.
7313 [Geoff Thorpe, with contributions from Richard Levitte]
7315 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7317 *) Make sure _lrotl and _lrotr are only used with MSVC.
7319 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7320 (the default implementation of RAND_status).
7322 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7323 to '-clrext' (= clear extensions), as intended and documented.
7324 [Bodo Moeller; inconsistency pointed out by Michael Attili
7327 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7328 was larger than the MD block size.
7329 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7331 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7332 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7333 using the passed key: if the passed key was a private key the result
7334 of X509_print(), for example, would be to print out all the private key
7338 *) des_quad_cksum() byte order bug fix.
7339 [Ulf Möller, using the problem description in krb4-0.9.7, where
7340 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7342 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7344 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7346 *) For easily testing in shell scripts whether some command
7347 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7348 returns with exit code 0 iff no command of the given name is available.
7349 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7350 the output goes to stdout and nothing is printed to stderr.
7351 Additional arguments are always ignored.
7353 Since for each cipher there is a command of the same name,
7354 the 'no-cipher' compilation switches can be tested this way.
7356 ('openssl no-XXX' is not able to detect pseudo-commands such
7357 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7360 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7363 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7364 is set; it will be thrown away anyway because each handshake creates
7366 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7367 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7368 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7369 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7372 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7373 'Q' and 'R' lose their special meanings (quit/renegotiate).
7374 This is part of what -quiet does; unlike -quiet, -ign_eof
7375 does not suppress any output.
7378 *) Add compatibility options to the purpose and trust code. The
7379 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7380 accepts a certificate or CA, this was the previous behaviour,
7381 with all the associated security issues.
7383 X509_TRUST_COMPAT is the old trust behaviour: only and
7384 automatically trust self signed roots in certificate store. A
7385 new trust setting X509_TRUST_DEFAULT is used to specify that
7386 a purpose has no associated trust setting and it should instead
7387 use the value in the default purpose.
7390 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7391 and fix a memory leak.
7394 *) In util/mkerr.pl (which implements 'make errors'), preserve
7395 reason strings from the previous version of the .c file, as
7396 the default to have only downcase letters (and digits) in
7397 automatically generated reasons codes is not always appropriate.
7400 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7401 using strerror. Previously, ERR_reason_error_string() returned
7402 library names as reason strings for SYSerr; but SYSerr is a special
7403 case where small numbers are errno values, not library numbers.
7406 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7407 converts DSA parameters into DH parameters. (When creating parameters,
7408 DSA_generate_parameters is used.)
7411 *) Include 'length' (recommended exponent length) in C code generated
7412 by 'openssl dhparam -C'.
7415 *) The second argument to set_label in perlasm was already being used
7416 so couldn't be used as a "file scope" flag. Moved to third argument
7420 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7421 instead of RAND_bytes for encryption IVs and salts.
7424 *) Include RAND_status() into RAND_METHOD instead of implementing
7425 it only for md_rand.c Otherwise replacing the PRNG by calling
7426 RAND_set_rand_method would be impossible.
7429 *) Don't let DSA_generate_key() enter an infinite loop if the random
7430 number generation fails.
7433 *) New 'rand' application for creating pseudo-random output.
7436 *) Added configuration support for Linux/IA64
7437 [Rolf Haberrecker <rolf@suse.de>]
7439 *) Assembler module support for Mingw32.
7442 *) Shared library support for HPUX (in shlib/).
7443 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7445 *) Shared library support for Solaris gcc.
7446 [Lutz Behnke <behnke@trustcenter.de>]
7448 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7450 *) PKCS7_encrypt() was adding text MIME headers twice because they
7451 were added manually and by SMIME_crlf_copy().
7454 *) In bntest.c don't call BN_rand with zero bits argument.
7455 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7457 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7458 case was implemented. This caused BN_div_recp() to fail occasionally.
7461 *) Add an optional second argument to the set_label() in the perl
7462 assembly language builder. If this argument exists and is set
7463 to 1 it signals that the assembler should use a symbol whose
7464 scope is the entire file, not just the current function. This
7465 is needed with MASM which uses the format label:: for this scope.
7466 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7468 *) Change the ASN1 types so they are typedefs by default. Before
7469 almost all types were #define'd to ASN1_STRING which was causing
7470 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7474 *) Change names of new functions to the new get1/get0 naming
7475 convention: After 'get1', the caller owns a reference count
7476 and has to call ..._free; 'get0' returns a pointer to some
7477 data structure without incrementing reference counters.
7478 (Some of the existing 'get' functions increment a reference
7479 counter, some don't.)
7480 Similarly, 'set1' and 'add1' functions increase reference
7481 counters or duplicate objects.
7484 *) Allow for the possibility of temp RSA key generation failure:
7485 the code used to assume it always worked and crashed on failure.
7488 *) Fix potential buffer overrun problem in BIO_printf().
7489 [Ulf Möller, using public domain code by Patrick Powell; problem
7490 pointed out by David Sacerdote <das33@cornell.edu>]
7492 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7493 RAND_egd() and RAND_status(). In the command line application,
7494 the EGD socket can be specified like a seed file using RANDFILE
7498 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7499 Some CAs (e.g. Verisign) distribute certificates in this form.
7502 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7503 list to exclude them. This means that no special compilation option
7504 is needed to use anonymous DH: it just needs to be included in the
7508 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7509 EVP_MD_type. The old functionality is available in a new macro called
7510 EVP_MD_md(). Change code that uses it and update docs.
7513 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7514 where the 'void *' argument is replaced by a function pointer argument.
7515 Previously 'void *' was abused to point to functions, which works on
7516 many platforms, but is not correct. As these functions are usually
7517 called by macros defined in OpenSSL header files, most source code
7518 should work without changes.
7521 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7522 sections with information on -D... compiler switches used for
7523 compiling the library so that applications can see them. To enable
7524 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7525 must be defined. E.g.,
7526 #define OPENSSL_ALGORITHM_DEFINES
7527 #include <openssl/opensslconf.h>
7528 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7529 [Richard Levitte, Ulf and Bodo Möller]
7531 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7535 *) Change the 'other' type in certificate aux info to a STACK_OF
7536 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7537 the required ASN1 format: arbitrary types determined by an OID.
7540 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7541 argument to 'req'. This is not because the function is newer or
7542 better than others it just uses the work 'NEW' in the certificate
7543 request header lines. Some software needs this.
7546 *) Reorganise password command line arguments: now passwords can be
7547 obtained from various sources. Delete the PEM_cb function and make
7548 it the default behaviour: i.e. if the callback is NULL and the
7549 usrdata argument is not NULL interpret it as a null terminated pass
7550 phrase. If usrdata and the callback are NULL then the pass phrase
7551 is prompted for as usual.
7554 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7555 the support is automatically enabled. The resulting binaries will
7556 autodetect the card and use it if present.
7557 [Ben Laurie and Compaq Inc.]
7559 *) Work around for Netscape hang bug. This sends certificate request
7560 and server done in one record. Since this is perfectly legal in the
7561 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7562 the bugs/SSLv3 entry for more info.
7565 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7568 *) Add -rand argument to smime and pkcs12 applications and read/write
7572 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7575 *) Add command line password options to the remaining applications.
7578 *) Bug fix for BN_div_recp() for numerators with an even number of
7582 *) More tests in bntest.c, and changed test_bn output.
7585 *) ./config recognizes MacOS X now.
7588 *) Bug fix for BN_div() when the first words of num and divsor are
7589 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7592 *) Add support for various broken PKCS#8 formats, and command line
7593 options to produce them.
7596 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7597 get temporary BIGNUMs from a BN_CTX.
7600 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7604 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7605 include a #define from the old name to the new. The original intent
7606 was that statically linked binaries could for example just call
7607 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7608 link with digests. This never worked becayse SSLeay_add_all_digests()
7609 and SSLeay_add_all_ciphers() were in the same source file so calling
7610 one would link with the other. They are now in separate source files.
7613 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7616 *) Use a less unusual form of the Miller-Rabin primality test (it used
7617 a binary algorithm for exponentiation integrated into the Miller-Rabin
7618 loop, our standard modexp algorithms are faster).
7621 *) Support for the EBCDIC character set completed.
7622 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7624 *) Source code cleanups: use const where appropriate, eliminate casts,
7625 use void * instead of char * in lhash.
7628 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7629 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7630 this the server could overwrite ephemeral keys that the client
7634 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7635 using 50 iterations of the Rabin-Miller test.
7637 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7638 iterations of the Rabin-Miller test as required by the appendix
7639 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7640 As BN_is_prime_fasttest includes trial division, DSA parameter
7641 generation becomes much faster.
7643 This implies a change for the callback functions in DSA_is_prime
7644 and DSA_generate_parameters: The callback function is called once
7645 for each positive witness in the Rabin-Miller test, not just
7646 occasionally in the inner loop; and the parameters to the
7647 callback function now provide an iteration count for the outer
7648 loop rather than for the current invocation of the inner loop.
7649 DSA_generate_parameters additionally can call the callback
7650 function with an 'iteration count' of -1, meaning that a
7651 candidate has passed the trial division test (when q is generated
7652 from an application-provided seed, trial division is skipped).
7655 *) New function BN_is_prime_fasttest that optionally does trial
7656 division before starting the Rabin-Miller test and has
7657 an additional BN_CTX * argument (whereas BN_is_prime always
7658 has to allocate at least one BN_CTX).
7659 'callback(1, -1, cb_arg)' is called when a number has passed the
7660 trial division stage.
7663 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7667 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7670 *) New function BN_pseudo_rand().
7673 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7674 bignum version of BN_from_montgomery() with the working code from
7675 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7679 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7680 made it impossible to use the same SSL_SESSION data structure in
7681 SSL2 clients in multiple threads.
7684 *) The return value of RAND_load_file() no longer counts bytes obtained
7685 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7686 to seed the PRNG (previously an explicit byte count was required).
7687 [Ulf Möller, Bodo Möller]
7689 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7690 used (char *) instead of (void *) and had casts all over the place.
7693 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7696 *) Retain source code compatibility for BN_prime_checks macro:
7697 BN_is_prime(..., BN_prime_checks, ...) now uses
7698 BN_prime_checks_for_size to determine the appropriate number of
7699 Rabin-Miller iterations.
7702 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7703 DH_CHECK_P_NOT_SAFE_PRIME.
7704 (Check if this is true? OpenPGP calls them "strong".)
7707 *) Merge the functionality of "dh" and "gendh" programs into a new program
7708 "dhparam". The old programs are retained for now but will handle DH keys
7709 (instead of parameters) in future.
7712 *) Make the ciphers, s_server and s_client programs check the return values
7713 when a new cipher list is set.
7716 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7717 ciphers. Before when the 56bit ciphers were enabled the sorting was
7720 The syntax for the cipher sorting has been extended to support sorting by
7721 cipher-strength (using the strength_bits hard coded in the tables).
7722 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7724 Fix a bug in the cipher-command parser: when supplying a cipher command
7725 string with an "undefined" symbol (neither command nor alphanumeric
7726 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7727 an error is flagged.
7729 Due to the strength-sorting extension, the code of the
7730 ssl_create_cipher_list() function was completely rearranged. I hope that
7731 the readability was also increased :-)
7732 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7734 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7735 for the first serial number and places 2 in the serial number file. This
7736 avoids problems when the root CA is created with serial number zero and
7737 the first user certificate has the same issuer name and serial number
7741 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7742 the new code. Add documentation for this stuff.
7745 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7746 X509_*() to X509at_*() on the grounds that they don't handle X509
7747 structures and behave in an analagous way to the X509v3 functions:
7748 they shouldn't be called directly but wrapper functions should be used
7751 So we also now have some wrapper functions that call the X509at functions
7752 when passed certificate requests. (TO DO: similar things can be done with
7753 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7754 things. Some of these need some d2i or i2d and print functionality
7755 because they handle more complex structures.)
7758 *) Add missing #ifndefs that caused missing symbols when building libssl
7759 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7760 NO_RSA in ssl/s2*.c.
7761 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7763 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7764 has a return value which indicates the quality of the random data
7765 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7766 error queue. New function RAND_pseudo_bytes() generates output that is
7767 guaranteed to be unique but not unpredictable. RAND_add is like
7768 RAND_seed, but takes an extra argument for an entropy estimate
7769 (RAND_seed always assumes full entropy).
7772 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7773 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7774 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7775 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7776 false-positive rate of at most 2^-80 for random input.
7779 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7782 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7783 in the 0.9.5 release), this returns the chain
7784 from an X509_CTX structure with a dup of the stack and all
7785 the X509 reference counts upped: so the stack will exist
7786 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7789 Also make SSL_SESSION_print() print out the verify return
7793 *) Add manpage for the pkcs12 command. Also change the default
7794 behaviour so MAC iteration counts are used unless the new
7795 -nomaciter option is used. This improves file security and
7796 only older versions of MSIE (4.0 for example) need it.
7799 *) Honor the no-xxx Configure options when creating .DEF files.
7802 *) Add PKCS#10 attributes to field table: challengePassword,
7803 unstructuredName and unstructuredAddress. These are taken from
7804 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7805 international characters are used.
7807 More changes to X509_ATTRIBUTE code: allow the setting of types
7808 based on strings. Remove the 'loc' parameter when adding
7809 attributes because these will be a SET OF encoding which is sorted
7813 *) Initial changes to the 'req' utility to allow request generation
7814 automation. This will allow an application to just generate a template
7815 file containing all the field values and have req construct the
7818 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7819 used all over the place including certificate requests and PKCS#7
7820 structures. They are currently handled manually where necessary with
7821 some primitive wrappers for PKCS#7. The new functions behave in a
7822 manner analogous to the X509 extension functions: they allow
7823 attributes to be looked up by NID and added.
7825 Later something similar to the X509V3 code would be desirable to
7826 automatically handle the encoding, decoding and printing of the
7827 more complex types. The string types like challengePassword can
7828 be handled by the string table functions.
7830 Also modified the multi byte string table handling. Now there is
7831 a 'global mask' which masks out certain types. The table itself
7832 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7833 is useful when for example there is only one permissible type
7834 (as in countryName) and using the mask might result in no valid
7838 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7839 SSL_get_peer_finished to allow applications to obtain the latest
7840 Finished messages sent to the peer or expected from the peer,
7841 respectively. (SSL_get_peer_finished is usually the Finished message
7842 actually received from the peer, otherwise the protocol will be aborted.)
7844 As the Finished message are message digests of the complete handshake
7845 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7846 be used for external authentication procedures when the authentication
7847 provided by SSL/TLS is not desired or is not enough.
7850 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7851 the host supports BWX extension and if Compaq C is present on the
7852 $PATH. Just exploiting of the BWX extension results in 20-30%
7853 performance kick for some algorithms, e.g. DES and RC4 to mention
7854 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7858 *) Add support for MS "fast SGC". This is arguably a violation of the
7859 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7860 weak crypto and after checking the certificate is SGC a second one
7861 with strong crypto. MS SGC stops the first handshake after receiving
7862 the server certificate message and sends a second client hello. Since
7863 a server will typically do all the time consuming operations before
7864 expecting any further messages from the client (server key exchange
7865 is the most expensive) there is little difference between the two.
7867 To get OpenSSL to support MS SGC we have to permit a second client
7868 hello message after we have sent server done. In addition we have to
7869 reset the MAC if we do get this second client hello.
7872 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7873 if a DER encoded private key is RSA or DSA traditional format. Changed
7874 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7875 format DER encoded private key. Newer code should use PKCS#8 format which
7876 has the key type encoded in the ASN1 structure. Added DER private key
7877 support to pkcs8 application.
7880 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7881 ciphersuites has been selected (as required by the SSL 3/TLS 1
7882 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7883 is set, we interpret this as a request to violate the specification
7884 (the worst that can happen is a handshake failure, and 'correct'
7885 behaviour would result in a handshake failure anyway).
7888 *) In SSL_CTX_add_session, take into account that there might be multiple
7889 SSL_SESSION structures with the same session ID (e.g. when two threads
7890 concurrently obtain them from an external cache).
7891 The internal cache can handle only one SSL_SESSION with a given ID,
7892 so if there's a conflict, we now throw out the old one to achieve
7896 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7897 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7898 some routines that use cipher OIDs: some ciphers do not have OIDs
7899 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7903 *) Simplify the trust setting structure and code. Now we just have
7904 two sequences of OIDs for trusted and rejected settings. These will
7905 typically have values the same as the extended key usage extension
7906 and any application specific purposes.
7908 The trust checking code now has a default behaviour: it will just
7909 check for an object with the same NID as the passed id. Functions can
7910 be provided to override either the default behaviour or the behaviour
7911 for a given id. SSL client, server and email already have functions
7912 in place for compatibility: they check the NID and also return "trusted"
7913 if the certificate is self signed.
7916 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7917 traditional format into an EVP_PKEY structure.
7920 *) Add a password callback function PEM_cb() which either prompts for
7921 a password if usr_data is NULL or otherwise assumes it is a null
7922 terminated password. Allow passwords to be passed on command line
7923 environment or config files in a few more utilities.
7926 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7927 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7928 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7929 Update documentation.
7932 *) Support for ASN1 "NULL" type. This could be handled before by using
7933 ASN1_TYPE but there wasn't any function that would try to read a NULL
7934 and produce an error if it couldn't. For compatibility we also have
7935 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7936 don't allocate anything because they don't need to.
7939 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7941 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7943 *) Rebuild of the memory allocation routines used by OpenSSL code and
7944 possibly others as well. The purpose is to make an interface that
7945 provide hooks so anyone can build a separate set of allocation and
7946 deallocation routines to be used by OpenSSL, for example memory
7947 pool implementations, or something else, which was previously hard
7948 since Malloc(), Realloc() and Free() were defined as macros having
7949 the values malloc, realloc and free, respectively (except for Win32
7950 compilations). The same is provided for memory debugging code.
7951 OpenSSL already comes with functionality to find memory leaks, but
7952 this gives people a chance to debug other memory problems.
7954 With these changes, a new set of functions and macros have appeared:
7956 CRYPTO_set_mem_debug_functions() [F]
7957 CRYPTO_get_mem_debug_functions() [F]
7958 CRYPTO_dbg_set_options() [F]
7959 CRYPTO_dbg_get_options() [F]
7960 CRYPTO_malloc_debug_init() [M]
7962 The memory debug functions are NULL by default, unless the library
7963 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7964 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7965 gives the standard debugging functions that come with OpenSSL) or
7966 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7967 provided by the library user) must be used. When the standard
7968 debugging functions are used, CRYPTO_dbg_set_options can be used to
7969 request additional information:
7970 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7971 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7973 Also, things like CRYPTO_set_mem_functions will always give the
7974 expected result (the new set of functions is used for allocation
7975 and deallocation) at all times, regardless of platform and compiler
7978 To finish it up, some functions that were never use in any other
7979 way than through macros have a new API and new semantic:
7982 CRYPTO_dbg_realloc()
7985 All macros of value have retained their old syntax.
7986 [Richard Levitte and Bodo Moeller]
7988 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7989 ordering of SMIMECapabilities wasn't in "strength order" and there
7990 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7994 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7995 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7996 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7998 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7999 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8000 functionality to handle multipart/signed properly) and a utility
8001 called 'smime' to call all this stuff. This is based on code I
8002 originally wrote for Celo who have kindly allowed it to be
8003 included in OpenSSL.
8006 *) Add variants des_set_key_checked and des_set_key_unchecked of
8007 des_set_key (aka des_key_sched). Global variable des_check_key
8008 decides which of these is called by des_set_key; this way
8009 des_check_key behaves as it always did, but applications and
8010 the library itself, which was buggy for des_check_key == 1,
8011 have a cleaner way to pick the version they need.
8014 *) New function PKCS12_newpass() which changes the password of a
8018 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8019 dynamic mix. In both cases the ids can be used as an index into the
8020 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8021 functions so they accept a list of the field values and the
8022 application doesn't need to directly manipulate the X509_TRUST
8026 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8030 *) Modify the way the V3 extension code looks up extensions. This now
8031 works in a similar way to the object code: we have some "standard"
8032 extensions in a static table which is searched with OBJ_bsearch()
8033 and the application can add dynamic ones if needed. The file
8034 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8035 updated whenever a new extension is added to the core code and kept
8036 in ext_nid order. There is a simple program 'tabtest.c' which checks
8037 this. New extensions are not added too often so this file can readily
8038 be maintained manually.
8040 There are two big advantages in doing things this way. The extensions
8041 can be looked up immediately and no longer need to be "added" using
8042 X509V3_add_standard_extensions(): this function now does nothing.
8043 [Side note: I get *lots* of email saying the extension code doesn't
8044 work because people forget to call this function]
8045 Also no dynamic allocation is done unless new extensions are added:
8046 so if we don't add custom extensions there is no need to call
8047 X509V3_EXT_cleanup().
8050 *) Modify enc utility's salting as follows: make salting the default. Add a
8051 magic header, so unsalted files fail gracefully instead of just decrypting
8052 to garbage. This is because not salting is a big security hole, so people
8053 should be discouraged from doing it.
8056 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8057 digest to be passed on the command line but it only used this
8058 parameter when signing a certificate. Modified so all relevant
8059 operations are affected by the digest parameter including the
8060 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8061 DSA key was used because it didn't fix the digest.
8064 *) Initial certificate chain verify code. Currently tests the untrusted
8065 certificates for consistency with the verify purpose (which is set
8066 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8068 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8069 this is because it will reject chains with invalid extensions whereas
8070 every previous version of OpenSSL and SSLeay made no checks at all.
8072 Trust code: checks the root CA for the relevant trust settings. Trust
8073 settings have an initial value consistent with the verify purpose: e.g.
8074 if the verify purpose is for SSL client use it expects the CA to be
8075 trusted for SSL client use. However the default value can be changed to
8076 permit custom trust settings: one example of this would be to only trust
8077 certificates from a specific "secure" set of CAs.
8079 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8080 which should be used for version portability: especially since the
8081 verify structure is likely to change more often now.
8083 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8084 to set them. If not set then assume SSL clients will verify SSL servers
8087 Two new options to the verify program: -untrusted allows a set of
8088 untrusted certificates to be passed in and -purpose which sets the
8089 intended purpose of the certificate. If a purpose is set then the
8090 new chain verify code is used to check extension consistency.
8093 *) Support for the authority information access extension.
8096 *) Modify RSA and DSA PEM read routines to transparently handle
8097 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8098 public keys in a format compatible with certificate
8099 SubjectPublicKeyInfo structures. Unfortunately there were already
8100 functions called *_PublicKey_* which used various odd formats so
8101 these are retained for compatibility: however the DSA variants were
8102 never in a public release so they have been deleted. Changed dsa/rsa
8103 utilities to handle the new format: note no releases ever handled public
8104 keys so we should be OK.
8106 The primary motivation for this change is to avoid the same fiasco
8107 that dogs private keys: there are several incompatible private key
8108 formats some of which are standard and some OpenSSL specific and
8109 require various evil hacks to allow partial transparent handling and
8110 even then it doesn't work with DER formats. Given the option anything
8111 other than PKCS#8 should be dumped: but the other formats have to
8112 stay in the name of compatibility.
8114 With public keys and the benefit of hindsight one standard format
8115 is used which works with EVP_PKEY, RSA or DSA structures: though
8116 it clearly returns an error if you try to read the wrong kind of key.
8118 Added a -pubkey option to the 'x509' utility to output the public key.
8119 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8120 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8121 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8122 that do the same as the EVP_PKEY_assign_*() except they up the
8123 reference count of the added key (they don't "swallow" the
8127 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8128 CRLs would fail if the file contained no certificates or no CRLs:
8129 added a new function to read in both types and return the number
8130 read: this means that if none are read it will be an error. The
8131 DER versions of the certificate and CRL reader would always fail
8132 because it isn't possible to mix certificates and CRLs in DER format
8133 without choking one or the other routine. Changed this to just read
8134 a certificate: this is the best we can do. Also modified the code
8135 in apps/verify.c to take notice of return codes: it was previously
8136 attempting to read in certificates from NULL pointers and ignoring
8137 any errors: this is one reason why the cert and CRL reader seemed
8138 to work. It doesn't check return codes from the default certificate
8139 routines: these may well fail if the certificates aren't installed.
8142 *) Code to support otherName option in GeneralName.
8145 *) First update to verify code. Change the verify utility
8146 so it warns if it is passed a self signed certificate:
8147 for consistency with the normal behaviour. X509_verify
8148 has been modified to it will now verify a self signed
8149 certificate if *exactly* the same certificate appears
8150 in the store: it was previously impossible to trust a
8151 single self signed certificate. This means that:
8152 openssl verify ss.pem
8153 now gives a warning about a self signed certificate but
8154 openssl verify -CAfile ss.pem ss.pem
8158 *) For servers, store verify_result in SSL_SESSION data structure
8159 (and add it to external session representation).
8160 This is needed when client certificate verifications fails,
8161 but an application-provided verification callback (set by
8162 SSL_CTX_set_cert_verify_callback) allows accepting the session
8163 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8164 but returns 1): When the session is reused, we have to set
8165 ssl->verify_result to the appropriate error code to avoid
8167 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8169 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8170 case in PKCS7_dataInit() where the signed PKCS7 structure
8171 didn't contain any existing data because it was being created.
8172 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8174 *) Add a salt to the key derivation routines in enc.c. This
8175 forms the first 8 bytes of the encrypted file. Also add a
8176 -S option to allow a salt to be input on the command line.
8179 *) New function X509_cmp(). Oddly enough there wasn't a function
8180 to compare two certificates. We do this by working out the SHA1
8181 hash and comparing that. X509_cmp() will be needed by the trust
8185 *) SSL_get1_session() is like SSL_get_session(), but increments
8186 the reference count in the SSL_SESSION returned.
8187 [Geoff Thorpe <geoff@eu.c2.net>]
8189 *) Fix for 'req': it was adding a null to request attributes.
8190 Also change the X509_LOOKUP and X509_INFO code to handle
8191 certificate auxiliary information.
8194 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8198 *) Add the possibility to add extra information to the memory leak
8199 detecting output, to form tracebacks, showing from where each
8200 allocation was originated: CRYPTO_push_info("constant string") adds
8201 the string plus current file name and line number to a per-thread
8202 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8203 is like calling CYRPTO_pop_info() until the stack is empty.
8204 Also updated memory leak detection code to be multi-thread-safe.
8207 *) Add options -text and -noout to pkcs7 utility and delete the
8208 encryption options which never did anything. Update docs.
8211 *) Add options to some of the utilities to allow the pass phrase
8212 to be included on either the command line (not recommended on
8213 OSes like Unix) or read from the environment. Update the
8214 manpages and fix a few bugs.
8217 *) Add a few manpages for some of the openssl commands.
8220 *) Fix the -revoke option in ca. It was freeing up memory twice,
8221 leaking and not finding already revoked certificates.
8224 *) Extensive changes to support certificate auxiliary information.
8225 This involves the use of X509_CERT_AUX structure and X509_AUX
8226 functions. An X509_AUX function such as PEM_read_X509_AUX()
8227 can still read in a certificate file in the usual way but it
8228 will also read in any additional "auxiliary information". By
8229 doing things this way a fair degree of compatibility can be
8230 retained: existing certificates can have this information added
8231 using the new 'x509' options.
8233 Current auxiliary information includes an "alias" and some trust
8234 settings. The trust settings will ultimately be used in enhanced
8235 certificate chain verification routines: currently a certificate
8236 can only be trusted if it is self signed and then it is trusted
8240 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8241 The problem was that one of the replacement routines had not been working
8242 since SSLeay releases. For now the offending routine has been replaced
8243 with non-optimised assembler. Even so, this now gives around 95%
8244 performance improvement for 1024 bit RSA signs.
8247 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8248 handling. Most clients have the effective key size in bits equal to
8249 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8250 A few however don't do this and instead use the size of the decrypted key
8251 to determine the RC2 key length and the AlgorithmIdentifier to determine
8252 the effective key length. In this case the effective key length can still
8253 be 40 bits but the key length can be 168 bits for example. This is fixed
8254 by manually forcing an RC2 key into the EVP_PKEY structure because the
8255 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8256 the key length and effective key length are equal.
8259 *) Add a bunch of functions that should simplify the creation of
8260 X509_NAME structures. Now you should be able to do:
8261 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8262 and have it automatically work out the correct field type and fill in
8263 the structures. The more adventurous can try:
8264 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8265 and it will (hopefully) work out the correct multibyte encoding.
8268 *) Change the 'req' utility to use the new field handling and multibyte
8269 copy routines. Before the DN field creation was handled in an ad hoc
8270 way in req, ca, and x509 which was rather broken and didn't support
8271 BMPStrings or UTF8Strings. Since some software doesn't implement
8272 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8273 using the dirstring_type option. See the new comment in the default
8274 openssl.cnf for more info.
8277 *) Make crypto/rand/md_rand.c more robust:
8278 - Assure unique random numbers after fork().
8279 - Make sure that concurrent threads access the global counter and
8280 md serializably so that we never lose entropy in them
8281 or use exactly the same state in multiple threads.
8282 Access to the large state is not always serializable because
8283 the additional locking could be a performance killer, and
8284 md should be large enough anyway.
8287 *) New file apps/app_rand.c with commonly needed functionality
8288 for handling the random seed file.
8290 Use the random seed file in some applications that previously did not:
8292 dsaparam -genkey (which also ignored its '-rand' option),
8295 x509 (when signing).
8296 Except on systems with /dev/urandom, it is crucial to have a random
8297 seed file at least for key creation, DSA signing, and for DH exchanges;
8298 for RSA signatures we could do without one.
8300 gendh and gendsa (unlike genrsa) used to read only the first byte
8301 of each file listed in the '-rand' option. The function as previously
8302 found in genrsa is now in app_rand.c and is used by all programs
8303 that support '-rand'.
8306 *) In RAND_write_file, use mode 0600 for creating files;
8307 don't just chmod when it may be too late.
8310 *) Report an error from X509_STORE_load_locations
8311 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8314 *) New function ASN1_mbstring_copy() this copies a string in either
8315 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8316 into an ASN1_STRING type. A mask of permissible types is passed
8317 and it chooses the "minimal" type to use or an error if not type
8321 *) Add function equivalents to the various macros in asn1.h. The old
8322 macros are retained with an M_ prefix. Code inside the library can
8323 use the M_ macros. External code (including the openssl utility)
8324 should *NOT* in order to be "shared library friendly".
8327 *) Add various functions that can check a certificate's extensions
8328 to see if it usable for various purposes such as SSL client,
8329 server or S/MIME and CAs of these types. This is currently
8330 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8331 verification. Also added a -purpose flag to x509 utility to
8332 print out all the purposes.
8335 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8339 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8340 for, obtain and decode and extension and obtain its critical flag.
8341 This allows all the necessary extension code to be handled in a
8342 single function call.
8345 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8346 platforms. See crypto/rc4/rc4_enc.c for further details.
8349 *) New -noout option to asn1parse. This causes no output to be produced
8350 its main use is when combined with -strparse and -out to extract data
8351 from a file (which may not be in ASN.1 format).
8354 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8355 when producing the local key id.
8356 [Richard Levitte <levitte@stacken.kth.se>]
8358 *) New option -dhparam in s_server. This allows a DH parameter file to be
8359 stated explicitly. If it is not stated then it tries the first server
8360 certificate file. The previous behaviour hard coded the filename
8364 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8365 a public key to be input or output. For example:
8366 openssl rsa -in key.pem -pubout -out pubkey.pem
8367 Also added necessary DSA public key functions to handle this.
8370 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8371 in the message. This was handled by allowing
8372 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8373 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8375 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8376 to the end of the strings whereas this didn't. This would cause problems
8377 if strings read with d2i_ASN1_bytes() were later modified.
8378 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8380 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8381 data and it contains EOF it will end up returning an error. This is
8382 caused by input 46 bytes long. The cause is due to the way base64
8383 BIOs find the start of base64 encoded data. They do this by trying a
8384 trial decode on each line until they find one that works. When they
8385 do a flag is set and it starts again knowing it can pass all the
8386 data directly through the decoder. Unfortunately it doesn't reset
8387 the context it uses. This means that if EOF is reached an attempt
8388 is made to pass two EOFs through the context and this causes the
8389 resulting error. This can also cause other problems as well. As is
8390 usual with these problems it takes *ages* to find and the fix is
8391 trivial: move one line.
8392 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8394 *) Ugly workaround to get s_client and s_server working under Windows. The
8395 old code wouldn't work because it needed to select() on sockets and the
8396 tty (for keypresses and to see if data could be written). Win32 only
8397 supports select() on sockets so we select() with a 1s timeout on the
8398 sockets and then see if any characters are waiting to be read, if none
8399 are present then we retry, we also assume we can always write data to
8400 the tty. This isn't nice because the code then blocks until we've
8401 received a complete line of data and it is effectively polling the
8402 keyboard at 1s intervals: however it's quite a bit better than not
8403 working at all :-) A dedicated Windows application might handle this
8404 with an event loop for example.
8407 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8408 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8409 will be called when RSA_sign() and RSA_verify() are used. This is useful
8410 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8411 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8412 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8413 This necessitated the support of an extra signature type NID_md5_sha1
8414 for SSL signatures and modifications to the SSL library to use it instead
8415 of calling RSA_public_decrypt() and RSA_private_encrypt().
8418 *) Add new -verify -CAfile and -CApath options to the crl program, these
8419 will lookup a CRL issuers certificate and verify the signature in a
8420 similar way to the verify program. Tidy up the crl program so it
8421 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8422 less strict. It will now permit CRL extensions even if it is not
8423 a V2 CRL: this will allow it to tolerate some broken CRLs.
8426 *) Initialize all non-automatic variables each time one of the openssl
8427 sub-programs is started (this is necessary as they may be started
8428 multiple times from the "OpenSSL>" prompt).
8429 [Lennart Bang, Bodo Moeller]
8431 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8432 removing all other RSA functionality (this is what NO_RSA does). This
8433 is so (for example) those in the US can disable those operations covered
8434 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8438 *) Non-copying interface to BIO pairs.
8439 (still largely untested)
8442 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8443 ASCII string. This was handled independently in various places before.
8446 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8447 UTF8 strings a character at a time.
8450 *) Use client_version from client hello to select the protocol
8451 (s23_srvr.c) and for RSA client key exchange verification
8452 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8455 *) Add various utility functions to handle SPKACs, these were previously
8456 handled by poking round in the structure internals. Added new function
8457 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8458 print, verify and generate SPKACs. Based on an original idea from
8459 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8462 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8465 *) Allow the config file extension section to be overwritten on the
8466 command line. Based on an original idea from Massimiliano Pala
8467 <madwolf@comune.modena.it>. The new option is called -extensions
8468 and can be applied to ca, req and x509. Also -reqexts to override
8469 the request extensions in req and -crlexts to override the crl extensions
8473 *) Add new feature to the SPKAC handling in ca. Now you can include
8474 the same field multiple times by preceding it by "XXXX." for example:
8477 this is the same syntax as used in the req config file.
8480 *) Allow certificate extensions to be added to certificate requests. These
8481 are specified in a 'req_extensions' option of the req section of the
8482 config file. They can be printed out with the -text option to req but
8483 are otherwise ignored at present.
8486 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8487 data read consists of only the final block it would not decrypted because
8488 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8489 A misplaced 'break' also meant the decrypted final block might not be
8490 copied until the next read.
8493 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8494 a few extra parameters to the DH structure: these will be useful if
8495 for example we want the value of 'q' or implement X9.42 DH.
8498 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8499 provides hooks that allow the default DSA functions or functions on a
8500 "per key" basis to be replaced. This allows hardware acceleration and
8501 hardware key storage to be handled without major modification to the
8502 library. Also added low level modexp hooks and CRYPTO_EX structure and
8503 associated functions.
8506 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8507 as "read only": it can't be written to and the buffer it points to will
8508 not be freed. Reading from a read only BIO is much more efficient than
8509 a normal memory BIO. This was added because there are several times when
8510 an area of memory needs to be read from a BIO. The previous method was
8511 to create a memory BIO and write the data to it, this results in two
8512 copies of the data and an O(n^2) reading algorithm. There is a new
8513 function BIO_new_mem_buf() which creates a read only memory BIO from
8514 an area of memory. Also modified the PKCS#7 routines to use read only
8518 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8519 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8520 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8521 but a retry condition occured while trying to read the rest.
8524 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8525 NID_pkcs7_encrypted by default: this was wrong since this should almost
8526 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8527 the encrypted data type: this is a more sensible place to put it and it
8528 allows the PKCS#12 code to be tidied up that duplicated this
8532 *) Changed obj_dat.pl script so it takes its input and output files on
8533 the command line. This should avoid shell escape redirection problems
8537 *) Initial support for certificate extension requests, these are included
8538 in things like Xenroll certificate requests. Included functions to allow
8539 extensions to be obtained and added.
8542 *) -crlf option to s_client and s_server for sending newlines as
8543 CRLF (as required by many protocols).
8546 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8548 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8549 [Ralf S. Engelschall]
8551 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8552 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8554 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8558 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8559 DH parameters/keys (q is lost during that conversion, but the resulting
8560 DH parameters contain its length).
8562 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8563 much faster than DH_generate_parameters (which creates parameters
8564 where p = 2*q + 1), and also the smaller q makes DH computations
8565 much more efficient (160-bit exponentiation instead of 1024-bit
8566 exponentiation); so this provides a convenient way to support DHE
8567 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8568 utter importance to use
8569 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8571 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8572 when such DH parameters are used, because otherwise small subgroup
8573 attacks may become possible!
8576 *) Avoid memory leak in i2d_DHparams.
8579 *) Allow the -k option to be used more than once in the enc program:
8580 this allows the same encrypted message to be read by multiple recipients.
8583 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8584 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8585 it will always use the numerical form of the OID, even if it has a short
8589 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8590 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8591 otherwise bn_mod_exp was called. In the case of hardware keys for example
8592 no private key components need be present and it might store extra data
8593 in the RSA structure, which cannot be accessed from bn_mod_exp.
8594 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8595 private key operations.
8598 *) Added support for SPARC Linux.
8601 *) pem_password_cb function type incompatibly changed from
8602 typedef int pem_password_cb(char *buf, int size, int rwflag);
8604 ....(char *buf, int size, int rwflag, void *userdata);
8605 so that applications can pass data to their callbacks:
8606 The PEM[_ASN1]_{read,write}... functions and macros now take an
8607 additional void * argument, which is just handed through whenever
8608 the password callback is called.
8609 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8611 New function SSL_CTX_set_default_passwd_cb_userdata.
8613 Compatibility note: As many C implementations push function arguments
8614 onto the stack in reverse order, the new library version is likely to
8615 interoperate with programs that have been compiled with the old
8616 pem_password_cb definition (PEM_whatever takes some data that
8617 happens to be on the stack as its last argument, and the callback
8618 just ignores this garbage); but there is no guarantee whatsoever that
8621 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8622 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8623 problems not only on Windows, but also on some Unix platforms.
8624 To avoid problematic command lines, these definitions are now in an
8625 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8626 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8629 *) MIPS III/IV assembler module is reimplemented.
8632 *) More DES library cleanups: remove references to srand/rand and
8633 delete an unused file.
8636 *) Add support for the the free Netwide assembler (NASM) under Win32,
8637 since not many people have MASM (ml) and it can be hard to obtain.
8638 This is currently experimental but it seems to work OK and pass all
8639 the tests. Check out INSTALL.W32 for info.
8642 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8643 without temporary keys kept an extra copy of the server key,
8644 and connections with temporary keys did not free everything in case
8648 *) New function RSA_check_key and new openssl rsa option -check
8649 for verifying the consistency of RSA keys.
8650 [Ulf Moeller, Bodo Moeller]
8652 *) Various changes to make Win32 compile work:
8653 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8654 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8655 comparison" warnings.
8656 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8659 *) Add a debugging option to PKCS#5 v2 key generation function: when
8660 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8661 derived keys are printed to stderr.
8664 *) Copy the flags in ASN1_STRING_dup().
8665 [Roman E. Pavlov <pre@mo.msk.ru>]
8667 *) The x509 application mishandled signing requests containing DSA
8668 keys when the signing key was also DSA and the parameters didn't match.
8670 It was supposed to omit the parameters when they matched the signing key:
8671 the verifying software was then supposed to automatically use the CA's
8672 parameters if they were absent from the end user certificate.
8674 Omitting parameters is no longer recommended. The test was also
8675 the wrong way round! This was probably due to unusual behaviour in
8676 EVP_cmp_parameters() which returns 1 if the parameters match.
8677 This meant that parameters were omitted when they *didn't* match and
8678 the certificate was useless. Certificates signed with 'ca' didn't have
8680 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8682 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8683 The interface is as follows:
8684 Applications can use
8685 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8686 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8687 "off" is now the default.
8688 The library internally uses
8689 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8690 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8691 to disable memory-checking temporarily.
8693 Some inconsistent states that previously were possible (and were
8694 even the default) are now avoided.
8696 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8697 with each memory chunk allocated; this is occasionally more helpful
8698 than just having a counter.
8700 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8702 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8706 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8707 which largely parallels "options", but is for changing API behaviour,
8708 whereas "options" are about protocol behaviour.
8709 Initial "mode" flags are:
8711 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8712 a single record has been written.
8713 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8714 retries use the same buffer location.
8715 (But all of the contents must be
8719 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8722 *) Fix problems with no-hmac etc.
8723 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8725 *) New functions RSA_get_default_method(), RSA_set_method() and
8726 RSA_get_method(). These allows replacement of RSA_METHODs without having
8727 to mess around with the internals of an RSA structure.
8730 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8731 Also really enable memory leak checks in openssl.c and in some
8733 [Chad C. Mulligan, Bodo Moeller]
8735 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8736 up the length of negative integers. This has now been simplified to just
8737 store the length when it is first determined and use it later, rather
8738 than trying to keep track of where data is copied and updating it to
8740 [Steve Henson, reported by Brien Wheeler
8741 <bwheeler@authentica-security.com>]
8743 *) Add a new function PKCS7_signatureVerify. This allows the verification
8744 of a PKCS#7 signature but with the signing certificate passed to the
8745 function itself. This contrasts with PKCS7_dataVerify which assumes the
8746 certificate is present in the PKCS#7 structure. This isn't always the
8747 case: certificates can be omitted from a PKCS#7 structure and be
8748 distributed by "out of band" means (such as a certificate database).
8751 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8752 function prototypes in pem.h, also change util/mkdef.pl to add the
8753 necessary function names.
8756 *) mk1mf.pl (used by Windows builds) did not properly read the
8757 options set by Configure in the top level Makefile, and Configure
8758 was not even able to write more than one option correctly.
8759 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8762 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8763 file to be loaded from a BIO or FILE pointer. The BIO version will
8764 for example allow memory BIOs to contain config info.
8767 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8768 Whoever hopes to achieve shared-library compatibility across versions
8769 must use this, not the compile-time macro.
8770 (Exercise 0.9.4: Which is the minimum library version required by
8772 Note: All this applies only to multi-threaded programs, others don't
8776 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8777 through a BIO pair triggered the default case, i.e.
8778 SSLerr(...,SSL_R_UNKNOWN_STATE).
8781 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8782 can use the SSL library even if none of the specific BIOs is
8786 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8787 for the encoded length.
8788 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8790 *) Add initial documentation of the X509V3 functions.
8793 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8794 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8795 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8796 secure PKCS#8 private key format with a high iteration count.
8799 *) Fix determination of Perl interpreter: A perl or perl5
8800 _directory_ in $PATH was also accepted as the interpreter.
8801 [Ralf S. Engelschall]
8803 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8804 wrong with it but it was very old and did things like calling
8805 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8809 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8810 to use the new extension code.
8813 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8814 with macros. This should make it easier to change their form, add extra
8815 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8819 *) Add to configuration table a new entry that can specify an alternative
8820 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8821 according to Mark Crispin <MRC@Panda.COM>.
8825 *) DES CBC did not update the IV. Weird.
8828 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8829 Changing the behaviour of the former might break existing programs --
8830 where IV updating is needed, des_ncbc_encrypt can be used.
8833 *) When bntest is run from "make test" it drives bc to check its
8834 calculations, as well as internally checking them. If an internal check
8835 fails, it needs to cause bc to give a non-zero result or make test carries
8836 on without noticing the failure. Fixed.
8839 *) DES library cleanups.
8842 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8843 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8844 ciphers. NOTE: although the key derivation function has been verified
8845 against some published test vectors it has not been extensively tested
8846 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8850 *) Instead of "mkdir -p", which is not fully portable, use new
8851 Perl script "util/mkdir-p.pl".
8854 *) Rewrite the way password based encryption (PBE) is handled. It used to
8855 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8856 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8857 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8858 the 'parameter' field of the AlgorithmIdentifier is passed to the
8859 underlying key generation function so it must do its own ASN1 parsing.
8860 This has also changed the EVP_PBE_CipherInit() function which now has a
8861 'parameter' argument instead of literal salt and iteration count values
8862 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8865 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8866 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8867 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8868 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8869 value was just used as a "magic string" and not used directly its
8870 value doesn't matter.
8873 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8877 *) "linux-sparc64" configuration (ultrapenguin).
8878 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8879 "linux-sparc" configuration.
8880 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8882 *) config now generates no-xxx options for missing ciphers.
8885 *) Support the EBCDIC character set (work in progress).
8886 File ebcdic.c not yet included because it has a different license.
8887 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8889 *) Support BS2000/OSD-POSIX.
8890 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8892 *) Make callbacks for key generation use void * instead of char *.
8895 *) Make S/MIME samples compile (not yet tested).
8898 *) Additional typesafe stacks.
8901 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8905 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8907 *) New configuration variant "sco5-gcc".
8909 *) Updated some demos.
8910 [Sean O Riordain, Wade Scholine]
8912 *) Add missing BIO_free at exit of pkcs12 application.
8915 *) Fix memory leak in conf.c.
8918 *) Updates for Win32 to assembler version of MD5.
8921 *) Set #! path to perl in apps/der_chop to where we found it
8922 instead of using a fixed path.
8925 *) SHA library changes for irix64-mips4-cc.
8928 *) Improvements for VMS support.
8932 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8934 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8935 This also avoids the problems with SC4.2 and unpatched SC5.
8936 [Andy Polyakov <appro@fy.chalmers.se>]
8938 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8939 These are required because of the typesafe stack would otherwise break
8940 existing code. If old code used a structure member which used to be STACK
8941 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8942 sk_num or sk_value it would produce an error because the num, data members
8943 are not present in STACK_OF. Now it just produces a warning. sk_set
8944 replaces the old method of assigning a value to sk_value
8945 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8946 that does this will no longer work (and should use sk_set instead) but
8947 this could be regarded as a "questionable" behaviour anyway.
8950 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8951 correctly handle encrypted S/MIME data.
8954 *) Change type of various DES function arguments from des_cblock
8955 (which means, in function argument declarations, pointer to char)
8956 to des_cblock * (meaning pointer to array with 8 char elements),
8957 which allows the compiler to do more typechecking; it was like
8958 that back in SSLeay, but with lots of ugly casts.
8960 Introduce new type const_des_cblock.
8963 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8964 problems: find RecipientInfo structure that matches recipient certificate
8965 and initialise the ASN1 structures properly based on passed cipher.
8968 *) Belatedly make the BN tests actually check the results.
8971 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8972 to and from BNs: it was completely broken. New compilation option
8973 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8974 key elements as negative integers.
8977 *) Reorganize and speed up MD5.
8978 [Andy Polyakov <appro@fy.chalmers.se>]
8981 [Richard Levitte <richard@levitte.org>]
8983 *) New option -out to asn1parse to allow the parsed structure to be
8984 output to a file. This is most useful when combined with the -strparse
8985 option to examine the output of things like OCTET STRINGS.
8988 *) Make SSL library a little more fool-proof by not requiring any longer
8989 that SSL_set_{accept,connect}_state be called before
8990 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8991 in many applications because usually everything *appeared* to work as
8992 intended anyway -- now it really works as intended).
8995 *) Move openssl.cnf out of lib/.
8998 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8999 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9000 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9001 [Ralf S. Engelschall]
9003 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9004 handle PKCS#7 enveloped data properly.
9005 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9007 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9008 copying pointers. The cert_st handling is changed by this in
9009 various ways (and thus what used to be known as ctx->default_cert
9010 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9011 any longer when s->cert does not give us what we need).
9012 ssl_cert_instantiate becomes obsolete by this change.
9013 As soon as we've got the new code right (possibly it already is?),
9014 we have solved a couple of bugs of the earlier code where s->cert
9015 was used as if it could not have been shared with other SSL structures.
9017 Note that using the SSL API in certain dirty ways now will result
9018 in different behaviour than observed with earlier library versions:
9019 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9020 does not influence s as it used to.
9022 In order to clean up things more thoroughly, inside SSL_SESSION
9023 we don't use CERT any longer, but a new structure SESS_CERT
9024 that holds per-session data (if available); currently, this is
9025 the peer's certificate chain and, for clients, the server's certificate
9026 and temporary key. CERT holds only those values that can have
9027 meaningful defaults in an SSL_CTX.
9030 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9031 from the internal representation. Various PKCS#7 fixes: remove some
9032 evil casts and set the enc_dig_alg field properly based on the signing
9036 *) Allow PKCS#12 password to be set from the command line or the
9037 environment. Let 'ca' get its config file name from the environment
9038 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9042 *) Allow certificate policies extension to use an IA5STRING for the
9043 organization field. This is contrary to the PKIX definition but
9044 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9048 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9049 without disallowing inline assembler and the like for non-pedantic builds.
9052 *) Support Borland C++ builder.
9053 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9058 *) SHA-1 cleanups and performance enhancements.
9059 [Andy Polyakov <appro@fy.chalmers.se>]
9061 *) Sparc v8plus assembler for the bignum library.
9062 [Andy Polyakov <appro@fy.chalmers.se>]
9064 *) Accept any -xxx and +xxx compiler options in Configure.
9067 *) Update HPUX configuration.
9070 *) Add missing sk_<type>_unshift() function to safestack.h
9071 [Ralf S. Engelschall]
9073 *) New function SSL_CTX_use_certificate_chain_file that sets the
9074 "extra_cert"s in addition to the certificate. (This makes sense
9075 only for "PEM" format files, as chains as a whole are not
9079 *) Support verify_depth from the SSL API.
9080 x509_vfy.c had what can be considered an off-by-one-error:
9081 Its depth (which was not part of the external interface)
9082 was actually counting the number of certificates in a chain;
9083 now it really counts the depth.
9086 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9087 instead of X509err, which often resulted in confusing error
9088 messages since the error codes are not globally unique
9089 (e.g. an alleged error in ssl3_accept when a certificate
9090 didn't match the private key).
9092 *) New function SSL_CTX_set_session_id_context that allows to set a default
9093 value (so that you don't need SSL_set_session_id_context for each
9094 connection using the SSL_CTX).
9097 *) OAEP decoding bug fix.
9100 *) Support INSTALL_PREFIX for package builders, as proposed by
9104 *) New Configure options "threads" and "no-threads". For systems
9105 where the proper compiler options are known (currently Solaris
9106 and Linux), "threads" is the default.
9109 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9112 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9113 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9114 such as /usr/local/bin.
9117 *) "make linux-shared" to build shared libraries.
9118 [Niels Poppe <niels@netbox.org>]
9120 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9123 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9124 extension adding in x509 utility.
9127 *) Remove NOPROTO sections and error code comments.
9130 *) Partial rewrite of the DEF file generator to now parse the ANSI
9134 *) New Configure options --prefix=DIR and --openssldir=DIR.
9137 *) Complete rewrite of the error code script(s). It is all now handled
9138 by one script at the top level which handles error code gathering,
9139 header rewriting and C source file generation. It should be much better
9140 than the old method: it now uses a modified version of Ulf's parser to
9141 read the ANSI prototypes in all header files (thus the old K&R definitions
9142 aren't needed for error creation any more) and do a better job of
9143 translating function codes into names. The old 'ASN1 error code imbedded
9144 in a comment' is no longer necessary and it doesn't use .err files which
9145 have now been deleted. Also the error code call doesn't have to appear all
9146 on one line (which resulted in some large lines...).
9149 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9152 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9153 0 (which usually indicates a closed connection), but continue reading.
9156 *) Fix some race conditions.
9159 *) Add support for CRL distribution points extension. Add Certificate
9160 Policies and CRL distribution points documentation.
9163 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9166 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9167 8 of keying material. Merlin has also confirmed interop with this fix
9168 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9169 [Merlin Hughes <merlin@baltimore.ie>]
9171 *) Fix lots of warnings.
9172 [Richard Levitte <levitte@stacken.kth.se>]
9174 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9175 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9176 [Richard Levitte <levitte@stacken.kth.se>]
9178 *) Fix problems with sizeof(long) == 8.
9179 [Andy Polyakov <appro@fy.chalmers.se>]
9181 *) Change functions to ANSI C.
9184 *) Fix typos in error codes.
9185 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9187 *) Remove defunct assembler files from Configure.
9190 *) SPARC v8 assembler BIGNUM implementation.
9191 [Andy Polyakov <appro@fy.chalmers.se>]
9193 *) Support for Certificate Policies extension: both print and set.
9194 Various additions to support the r2i method this uses.
9197 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9198 return a const string when you are expecting an allocated buffer.
9201 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9202 types DirectoryString and DisplayText.
9205 *) Add code to allow r2i extensions to access the configuration database,
9206 add an LHASH database driver and add several ctx helper functions.
9209 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9210 fail when they extended the size of a BIGNUM.
9213 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9214 support typesafe stack.
9217 *) Fix typo in SSL_[gs]et_options().
9218 [Nils Frostberg <nils@medcom.se>]
9220 *) Delete various functions and files that belonged to the (now obsolete)
9221 old X509V3 handling code.
9224 *) New Configure option "rsaref".
9227 *) Don't auto-generate pem.h.
9230 *) Introduce type-safe ASN.1 SETs.
9233 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9234 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9236 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9237 that links with OpenSSL (well at least cause lots of warnings), but fear
9238 not: the conversion is trivial, and it eliminates loads of evil casts. A
9239 few STACKed things have been converted already. Feel free to convert more.
9240 In the fullness of time, I'll do away with the STACK type altogether.
9243 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9244 specified in <certfile> by updating the entry in the index.txt file.
9245 This way one no longer has to edit the index.txt file manually for
9246 revoking a certificate. The -revoke option does the gory details now.
9247 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9249 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9250 `-text' option at all and this way the `-noout -text' combination was
9251 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9252 [Ralf S. Engelschall]
9254 *) Make sure a corresponding plain text error message exists for the
9255 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9256 verify callback function determined that a certificate was revoked.
9257 [Ralf S. Engelschall]
9259 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9260 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9261 all available cipers including rc5, which was forgotten until now.
9262 In order to let the testing shell script know which algorithms
9263 are available, a new (up to now undocumented) command
9264 "openssl list-cipher-commands" is used.
9267 *) Bugfix: s_client occasionally would sleep in select() when
9268 it should have checked SSL_pending() first.
9271 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9272 the raw DSA values prior to ASN.1 encoding.
9275 *) Tweaks to Configure
9276 [Niels Poppe <niels@netbox.org>]
9278 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9282 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9285 *) New config option to avoid instructions that are illegal on the 80386.
9286 The default code is faster, but requires at least a 486.
9289 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9290 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9291 same as SSL2_VERSION anyway.
9294 *) New "-showcerts" option for s_client.
9297 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9298 application. Various cleanups and fixes.
9301 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9302 modify error routines to work internally. Add error codes and PBE init
9303 to library startup routines.
9306 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9307 packing functions to asn1 and evp. Changed function names and error
9308 codes along the way.
9311 *) PKCS12 integration: and so it begins... First of several patches to
9312 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9313 objects to objects.h
9316 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9317 and display support for Thawte strong extranet extension.
9320 *) Add LinuxPPC support.
9321 [Jeff Dubrule <igor@pobox.org>]
9323 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9324 bn_div_words in alpha.s.
9325 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9327 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9328 OAEP isn't supported when OpenSSL is built with RSAref.
9329 [Ulf Moeller <ulf@fitug.de>]
9331 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9332 so they no longer are missing under -DNOPROTO.
9333 [Soren S. Jorvang <soren@t.dk>]
9336 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9338 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9339 doesn't work when the session is reused. Coming soon!
9342 *) Fix a security hole, that allows sessions to be reused in the wrong
9343 context thus bypassing client cert protection! All software that uses
9344 client certs and session caches in multiple contexts NEEDS PATCHING to
9345 allow session reuse! A fuller solution is in the works.
9346 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9348 *) Some more source tree cleanups (removed obsolete files
9349 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9350 permission on "config" script to be executable) and a fix for the INSTALL
9352 [Ulf Moeller <ulf@fitug.de>]
9354 *) Remove some legacy and erroneous uses of malloc, free instead of
9356 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9358 *) Make rsa_oaep_test return non-zero on error.
9359 [Ulf Moeller <ulf@fitug.de>]
9361 *) Add support for native Solaris shared libraries. Configure
9362 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9363 if someone would make that last step automatic.
9364 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9366 *) ctx_size was not built with the right compiler during "make links". Fixed.
9369 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9370 except NULL ciphers". This means the default cipher list will no longer
9371 enable NULL ciphers. They need to be specifically enabled e.g. with
9372 the string "DEFAULT:eNULL".
9375 *) Fix to RSA private encryption routines: if p < q then it would
9376 occasionally produce an invalid result. This will only happen with
9377 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9380 *) Be less restrictive and allow also `perl util/perlpath.pl
9381 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9382 because this way one can also use an interpreter named `perl5' (which is
9383 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9384 installed as `perl').
9385 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9387 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9388 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9390 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9391 advapi32.lib to Win32 build and change the pem test comparision
9392 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9393 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9394 and crypto/des/ede_cbcm_enc.c.
9397 *) DES quad checksum was broken on big-endian architectures. Fixed.
9400 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9401 Win32 test batch file so it (might) work again. The Win32 test batch file
9402 is horrible: I feel ill....
9405 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9406 in e_os.h. Audit of header files to check ANSI and non ANSI
9407 sections: 10 functions were absent from non ANSI section and not exported
9408 from Windows DLLs. Fixed up libeay.num for new functions.
9411 *) Make `openssl version' output lines consistent.
9412 [Ralf S. Engelschall]
9414 *) Fix Win32 symbol export lists for BIO functions: Added
9415 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9416 to ms/libeay{16,32}.def.
9417 [Ralf S. Engelschall]
9419 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9420 fine under Unix and passes some trivial tests I've now added. But the
9421 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9422 added to make sure no one expects that this stuff really works in the
9423 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9424 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9426 [Ralf S. Engelschall]
9428 *) Fix the generation of two part addresses in perl.
9429 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9431 *) Add config entry for Linux on MIPS.
9432 [John Tobey <jtobey@channel1.com>]
9434 *) Make links whenever Configure is run, unless we are on Windoze.
9437 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9438 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9442 *) Add a useful kludge to allow package maintainers to specify compiler and
9443 other platforms details on the command line without having to patch the
9444 Configure script everytime: One now can use ``perl Configure
9445 <id>:<details>'', i.e. platform ids are allowed to have details appended
9446 to them (seperated by colons). This is treated as there would be a static
9447 pre-configured entry in Configure's %table under key <id> with value
9448 <details> and ``perl Configure <id>'' is called. So, when you want to
9449 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9450 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9451 now, which overrides the FreeBSD-elf entry on-the-fly.
9452 [Ralf S. Engelschall]
9454 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9457 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9458 on the `perl Configure ...' command line. This way one can compile
9459 OpenSSL libraries with Position Independent Code (PIC) which is needed
9460 for linking it into DSOs.
9461 [Ralf S. Engelschall]
9463 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9467 *) Cleaned up the LICENSE document: The official contact for any license
9468 questions now is the OpenSSL core team under openssl-core@openssl.org.
9469 And add a paragraph about the dual-license situation to make sure people
9470 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9471 to the OpenSSL toolkit.
9472 [Ralf S. Engelschall]
9474 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9475 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9476 Additonally cleaned up the `make links' target: Remove unnecessary
9477 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9478 to speed processing and no longer clutter the display with confusing
9479 stuff. Instead only the actually done links are displayed.
9480 [Ralf S. Engelschall]
9482 *) Permit null encryption ciphersuites, used for authentication only. It used
9483 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9484 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9488 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9489 signed attributes when verifying signatures (this would break them),
9490 the detached data encoding was wrong and public keys obtained using
9491 X509_get_pubkey() weren't freed.
9494 *) Add text documentation for the BUFFER functions. Also added a work around
9495 to a Win95 console bug. This was triggered by the password read stuff: the
9496 last character typed gets carried over to the next fread(). If you were
9497 generating a new cert request using 'req' for example then the last
9498 character of the passphrase would be CR which would then enter the first
9502 *) Added the new `Includes OpenSSL Cryptography Software' button as
9503 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9504 button and can be used by applications based on OpenSSL to show the
9505 relationship to the OpenSSL project.
9506 [Ralf S. Engelschall]
9508 *) Remove confusing variables in function signatures in files
9509 ssl/ssl_lib.c and ssl/ssl.h.
9510 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9512 *) Don't install bss_file.c under PREFIX/include/
9513 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9515 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9516 functions that return function pointers and has support for NT specific
9517 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9518 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9519 unsigned to signed types: this was killing the Win32 compile.
9522 *) Add new certificate file to stack functions,
9523 SSL_add_dir_cert_subjects_to_stack() and
9524 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9525 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9526 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9527 This means that Apache-SSL and similar packages don't have to mess around
9528 to add as many CAs as they want to the preferred list.
9531 *) Experiment with doxygen documentation. Currently only partially applied to
9533 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9534 openssl.doxy as the configuration file.
9537 *) Get rid of remaining C++-style comments which strict C compilers hate.
9538 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9540 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9541 compiled in by default: it has problems with large keys.
9544 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9545 DH private keys and/or callback functions which directly correspond to
9546 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9547 is needed for applications which have to configure certificates on a
9548 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9550 For the RSA certificate situation is makes no difference, but
9551 for the DSA certificate situation this fixes the "no shared cipher"
9552 problem where the OpenSSL cipher selection procedure failed because the
9553 temporary keys were not overtaken from the context and the API provided
9554 no way to reconfigure them.
9555 The new functions now let applications reconfigure the stuff and they
9556 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9557 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9558 non-public-API function ssl_cert_instantiate() is used as a helper
9559 function and also to reduce code redundancy inside ssl_rsa.c.
9560 [Ralf S. Engelschall]
9562 *) Move s_server -dcert and -dkey options out of the undocumented feature
9563 area because they are useful for the DSA situation and should be
9564 recognized by the users.
9565 [Ralf S. Engelschall]
9567 *) Fix the cipher decision scheme for export ciphers: the export bits are
9568 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9569 SSL_EXP_MASK. So, the original variable has to be used instead of the
9570 already masked variable.
9571 [Richard Levitte <levitte@stacken.kth.se>]
9573 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9574 [Richard Levitte <levitte@stacken.kth.se>]
9576 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9577 from `int' to `unsigned int' because it's a length and initialized by
9578 EVP_DigestFinal() which expects an `unsigned int *'.
9579 [Richard Levitte <levitte@stacken.kth.se>]
9581 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9582 script. Instead use the usual Shell->Perl transition trick.
9583 [Ralf S. Engelschall]
9585 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9586 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9587 -noout -modulus' as it's already the case for `openssl rsa -noout
9588 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9589 currently the public key is printed (a decision which was already done by
9590 `openssl dsa -modulus' in the past) which serves a similar purpose.
9591 Additionally the NO_RSA no longer completely removes the whole -modulus
9592 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9594 [Ralf S. Engelschall]
9596 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9597 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9598 [Arne Ansper <arne@ats.cyber.ee>]
9600 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9601 to be added. Now both 'req' and 'ca' can use new objects defined in the
9605 *) Add cool BIO that does syslog (or event log on NT).
9606 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9608 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9609 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9610 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9611 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9614 *) Add preliminary config info for new extension code.
9617 *) Make RSA_NO_PADDING really use no padding.
9618 [Ulf Moeller <ulf@fitug.de>]
9620 *) Generate errors when private/public key check is done.
9623 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9624 for some CRL extensions and new objects added.
9627 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9628 key usage extension and fuller support for authority key id.
9631 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9632 padding method for RSA, which is recommended for new applications in PKCS
9633 #1 v2.0 (RFC 2437, October 1998).
9634 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9635 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9636 against Bleichbacher's attack on RSA.
9637 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9640 *) Updates to the new SSL compression code
9641 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9643 *) Fix so that the version number in the master secret, when passed
9644 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9645 (because the server will not accept higher), that the version number
9646 is 0x03,0x01, not 0x03,0x00
9647 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9649 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9650 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9651 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9654 *) Support for RAW extensions where an arbitrary extension can be
9655 created by including its DER encoding. See apps/openssl.cnf for
9659 *) Make sure latest Perl versions don't interpret some generated C array
9660 code as Perl array code in the crypto/err/err_genc.pl script.
9661 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9663 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9664 not many people have the assembler. Various Win32 compilation fixes and
9665 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9669 *) Modify configure script 'Configure' to automatically create crypto/date.h
9670 file under Win32 and also build pem.h from pem.org. New script
9671 util/mkfiles.pl to create the MINFO file on environments that can't do a
9672 'make files': perl util/mkfiles.pl >MINFO should work.
9675 *) Major rework of DES function declarations, in the pursuit of correctness
9676 and purity. As a result, many evil casts evaporated, and some weirdness,
9677 too. You may find this causes warnings in your code. Zapping your evil
9678 casts will probably fix them. Mostly.
9681 *) Fix for a typo in asn1.h. Bug fix to object creation script
9682 obj_dat.pl. It considered a zero in an object definition to mean
9683 "end of object": none of the objects in objects.h have any zeros
9684 so it wasn't spotted.
9685 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9687 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9688 Masking (CBCM). In the absence of test vectors, the best I have been able
9689 to do is check that the decrypt undoes the encrypt, so far. Send me test
9690 vectors if you have them.
9693 *) Correct calculation of key length for export ciphers (too much space was
9694 allocated for null ciphers). This has not been tested!
9697 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9698 message is now correct (it understands "crypto" and "ssl" on its
9699 command line). There is also now an "update" option. This will update
9700 the util/ssleay.num and util/libeay.num files with any new functions.
9702 perl util/mkdef.pl crypto ssl update
9703 it will update them.
9706 *) Overhauled the Perl interface (perl/*):
9707 - ported BN stuff to OpenSSL's different BN library
9708 - made the perl/ source tree CVS-aware
9709 - renamed the package from SSLeay to OpenSSL (the files still contain
9710 their history because I've copied them in the repository)
9711 - removed obsolete files (the test scripts will be replaced
9712 by better Test::Harness variants in the future)
9713 [Ralf S. Engelschall]
9715 *) First cut for a very conservative source tree cleanup:
9716 1. merge various obsolete readme texts into doc/ssleay.txt
9717 where we collect the old documents and readme texts.
9718 2. remove the first part of files where I'm already sure that we no
9719 longer need them because of three reasons: either they are just temporary
9720 files which were left by Eric or they are preserved original files where
9721 I've verified that the diff is also available in the CVS via "cvs diff
9722 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9723 the crypto/md/ stuff).
9724 [Ralf S. Engelschall]
9726 *) More extension code. Incomplete support for subject and issuer alt
9727 name, issuer and authority key id. Change the i2v function parameters
9728 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9729 what that's for :-) Fix to ASN1 macro which messed up
9730 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9733 *) Preliminary support for ENUMERATED type. This is largely copied from the
9737 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9738 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9740 *) Make sure `make rehash' target really finds the `openssl' program.
9741 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9743 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9744 like to hear about it if this slows down other processors.
9747 *) Add CygWin32 platform information to Configure script.
9748 [Alan Batie <batie@aahz.jf.intel.com>]
9750 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9751 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9753 *) New program nseq to manipulate netscape certificate sequences
9756 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9760 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9761 but the BN code had some problems that would cause failures when
9762 doing certificate verification and some other functions.
9763 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9765 *) Add ASN1 and PEM code to support netscape certificate sequences.
9768 *) Add ASN1 and PEM code to support netscape certificate sequences.
9771 *) Add several PKIX and private extended key usage OIDs.
9774 *) Modify the 'ca' program to handle the new extension code. Modify
9775 openssl.cnf for new extension format, add comments.
9778 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9779 and add a sample to openssl.cnf so req -x509 now adds appropriate
9783 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9784 error code, add initial support to X509_print() and x509 application.
9787 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9788 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9789 stuff is currently isolated and isn't even compiled yet.
9792 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9793 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9794 Removed the versions check from X509 routines when loading extensions:
9795 this allows certain broken certificates that don't set the version
9796 properly to be processed.
9799 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9800 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9801 can still be regenerated with "make depend".
9804 *) Spelling mistake in C version of CAST-128.
9805 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9807 *) Changes to the error generation code. The perl script err-code.pl
9808 now reads in the old error codes and retains the old numbers, only
9809 adding new ones if necessary. It also only changes the .err files if new
9810 codes are added. The makefiles have been modified to only insert errors
9811 when needed (to avoid needlessly modifying header files). This is done
9812 by only inserting errors if the .err file is newer than the auto generated
9813 C file. To rebuild all the error codes from scratch (the old behaviour)
9814 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9815 or delete all the .err files.
9818 *) CAST-128 was incorrectly implemented for short keys. The C version has
9819 been fixed, but is untested. The assembler versions are also fixed, but
9820 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9821 to regenerate it if needed.
9822 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9823 Hagino <itojun@kame.net>]
9825 *) File was opened incorrectly in randfile.c.
9826 [Ulf Möller <ulf@fitug.de>]
9828 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9829 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9830 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9831 al: it's just almost always a UTCTime. Note this patch adds new error
9832 codes so do a "make errors" if there are problems.
9835 *) Correct Linux 1 recognition in config.
9836 [Ulf Möller <ulf@fitug.de>]
9838 *) Remove pointless MD5 hash when using DSA keys in ca.
9839 [Anonymous <nobody@replay.com>]
9841 *) Generate an error if given an empty string as a cert directory. Also
9842 generate an error if handed NULL (previously returned 0 to indicate an
9843 error, but didn't set one).
9844 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9846 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9849 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9850 parameters. This was causing a warning which killed off the Win32 compile.
9853 *) Remove C++ style comments from crypto/bn/bn_local.h.
9854 [Neil Costigan <neil.costigan@celocom.com>]
9856 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9857 based on a text string, looking up short and long names and finally
9858 "dot" format. The "dot" format stuff didn't work. Added new function
9859 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9860 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9861 OID is not part of the table.
9864 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9865 X509_LOOKUP_by_alias().
9868 *) Sort openssl functions by name.
9871 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9872 encryption from sample DSA keys (in case anyone is interested the password
9876 *) Make _all_ *_free functions accept a NULL pointer.
9877 [Frans Heymans <fheymans@isaserver.be>]
9879 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9881 [Anonymous <nobody@replay.com>]
9883 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9884 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9886 *) Don't blow it for numeric -newkey arguments to apps/req.
9887 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9889 *) Temp key "for export" tests were wrong in s3_srvr.c.
9890 [Anonymous <nobody@replay.com>]
9892 *) Add prototype for temp key callback functions
9893 SSL_CTX_set_tmp_{rsa,dh}_callback().
9896 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9897 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9900 *) X509_name_add_entry() freed the wrong thing after an error.
9901 [Arne Ansper <arne@ats.cyber.ee>]
9903 *) rsa_eay.c would attempt to free a NULL context.
9904 [Arne Ansper <arne@ats.cyber.ee>]
9906 *) BIO_s_socket() had a broken should_retry() on Windoze.
9907 [Arne Ansper <arne@ats.cyber.ee>]
9909 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9910 [Arne Ansper <arne@ats.cyber.ee>]
9912 *) Make sure the already existing X509_STORE->depth variable is initialized
9913 in X509_STORE_new(), but document the fact that this variable is still
9914 unused in the certificate verification process.
9915 [Ralf S. Engelschall]
9917 *) Fix the various library and apps files to free up pkeys obtained from
9918 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9921 *) Fix reference counting in X509_PUBKEY_get(). This makes
9922 demos/maurice/example2.c work, amongst others, probably.
9923 [Steve Henson and Ben Laurie]
9925 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9926 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9927 are no longer created. This way we have a single and consistent command
9928 line interface `openssl <command>', similar to `cvs <command>'.
9929 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9931 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9932 BIT STRING wrapper always have zero unused bits.
9935 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9938 *) Make the top-level INSTALL documentation easier to understand.
9941 *) Makefiles updated to exit if an error occurs in a sub-directory
9942 make (including if user presses ^C) [Paul Sutton]
9944 *) Make Montgomery context stuff explicit in RSA data structure.
9947 *) Fix build order of pem and err to allow for generated pem.h.
9950 *) Fix renumbering bug in X509_NAME_delete_entry().
9953 *) Enhanced the err-ins.pl script so it makes the error library number
9954 global and can add a library name. This is needed for external ASN1 and
9955 other error libraries.
9958 *) Fixed sk_insert which never worked properly.
9961 *) Fix ASN1 macros so they can handle indefinite length construted
9962 EXPLICIT tags. Some non standard certificates use these: they can now
9966 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9967 into a single doc/ssleay.txt bundle. This way the information is still
9968 preserved but no longer messes up this directory. Now it's new room for
9969 the new set of documenation files.
9970 [Ralf S. Engelschall]
9972 *) SETs were incorrectly DER encoded. This was a major pain, because they
9973 shared code with SEQUENCEs, which aren't coded the same. This means that
9974 almost everything to do with SETs or SEQUENCEs has either changed name or
9975 number of arguments.
9976 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9978 *) Fix test data to work with the above.
9981 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9982 was already fixed by Eric for 0.9.1 it seems.
9983 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9985 *) Autodetect FreeBSD3.
9988 *) Fix various bugs in Configure. This affects the following platforms:
9992 unixware-2.0-pentium
9996 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9997 before they are needed.
10000 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10004 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10006 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10007 changed SSLeay to OpenSSL in version strings.
10008 [Ralf S. Engelschall]
10010 *) Some fixups to the top-level documents.
10013 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10014 because the symlink to include/ was missing.
10015 [Ralf S. Engelschall]
10017 *) Incorporated the popular no-RSA/DSA-only patches
10018 which allow to compile a RSA-free SSLeay.
10019 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10021 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10022 when "ssleay" is still not found.
10023 [Ralf S. Engelschall]
10025 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10026 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10028 *) Updated the README file.
10029 [Ralf S. Engelschall]
10031 *) Added various .cvsignore files in the CVS repository subdirs
10032 to make a "cvs update" really silent.
10033 [Ralf S. Engelschall]
10035 *) Recompiled the error-definition header files and added
10036 missing symbols to the Win32 linker tables.
10037 [Ralf S. Engelschall]
10039 *) Cleaned up the top-level documents;
10040 o new files: CHANGES and LICENSE
10041 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10042 o merged COPYRIGHT into LICENSE
10043 o removed obsolete TODO file
10044 o renamed MICROSOFT to INSTALL.W32
10045 [Ralf S. Engelschall]
10047 *) Removed dummy files from the 0.9.1b source tree:
10048 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10049 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10050 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10051 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10052 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10053 [Ralf S. Engelschall]
10055 *) Added various platform portability fixes.
10058 *) The Genesis of the OpenSSL rpject:
10059 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10060 Young and Tim J. Hudson created while they were working for C2Net until
10062 [The OpenSSL Project]
10065 Changes between 0.9.0b and 0.9.1b [not released]
10067 *) Updated a few CA certificates under certs/
10070 *) Changed some BIGNUM api stuff.
10073 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10074 DGUX x86, Linux Alpha, etc.
10077 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10078 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10082 *) Add -strparse option to asn1pars program which parses nested
10084 [Dr Stephen Henson <shenson@bigfoot.com>]
10086 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10089 *) DSA fix for "ca" program.
10092 *) Added "-genkey" option to "dsaparam" program.
10095 *) Added RIPE MD160 (rmd160) message digest.
10098 *) Added -a (all) option to "ssleay version" command.
10101 *) Added PLATFORM define which is the id given to Configure.
10104 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10107 *) Extended the ASN.1 parser routines.
10110 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10113 *) Added a BN_CTX to the BN library.
10116 *) Fixed the weak key values in DES library
10119 *) Changed API in EVP library for cipher aliases.
10122 *) Added support for RC2/64bit cipher.
10125 *) Converted the lhash library to the crypto/mem.c functions.
10128 *) Added more recognized ASN.1 object ids.
10131 *) Added more RSA padding checks for SSL/TLS.
10134 *) Added BIO proxy/filter functionality.
10137 *) Added extra_certs to SSL_CTX which can be used
10138 send extra CA certificates to the client in the CA cert chain sending
10139 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10142 *) Now Fortezza is denied in the authentication phase because
10143 this is key exchange mechanism is not supported by SSLeay at all.
10146 *) Additional PKCS1 checks.
10149 *) Support the string "TLSv1" for all TLS v1 ciphers.
10152 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10153 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10156 *) Fixed a few memory leaks.
10159 *) Fixed various code and comment typos.
10162 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10163 bytes sent in the client random.
10164 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob