5 Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
7 *) Transparently support X9.42 DH parameters when calling
8 PEM_read_bio_DHparameters. This means existing applications can handle
9 the new parameter format automatically.
12 *) Initial experimental support for X9.42 DH parameter format: mainly
13 to support use of 'q' parameter for RFC5114 parameters.
16 *) Add DH parameters from RFC5114 including test data to dhtest.
19 *) Update fips_test_suite to support multiple command line options. New
20 test to induce all self test errors in sequence and check expected
24 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
25 sign or verify all in one operation.
28 *) Add fips_algvs: a multicall fips utility incorporaing all the algorithm
29 test programs and fips_test_suite. Includes functionality to parse
30 the minimal script output of fipsalgest.pl directly.
33 *) Add authorisation parameter to FIPS_module_mode_set().
36 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
39 *) Use separate DRBG fields for internal and external flags. New function
40 FIPS_drbg_health_check() to perform on demand health checking. Add
41 generation tests to fips_test_suite with reduced health check interval to
42 demonstrate periodic health checking. Add "nodh" option to
43 fips_test_suite to skip very slow DH test.
46 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
50 *) More extensive health check for DRBG checking many more failure modes.
51 New function FIPS_selftest_drbg_all() to handle every possible DRBG
52 combination: call this in fips_test_suite.
55 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
56 and POST to handle Dual EC cases.
59 *) Add support for canonical generation of DSA parameter 'g'. See
62 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
63 POST to handle HMAC cases.
66 *) Add functions FIPS_module_version() and FIPS_module_version_text()
67 to return numberical and string versions of the FIPS module number.
70 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
71 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implmeneted
72 outside the validated module in the FIPS capable OpenSSL.
75 *) Minor change to DRBG entropy callback semantics. In some cases
76 there is no mutiple of the block length between min_len and
77 max_len. Allow the callback to return more than max_len bytes
78 of entropy but discard any extra: it is the callback's responsibility
79 to ensure that the extra data discarded does not impact the
80 requested amount of entropy.
83 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
84 information in FIPS186-3, SP800-57 and SP800-131A.
87 *) CCM support via EVP. Interface is very similar to GCM case except we
88 must supply all data in one chunk (i.e. no update, final) and the
89 message length must be supplied if AAD is used. Add algorithm test
93 *) Initial version of POST overhaul. Add POST callback to allow the status
94 of POST to be monitored and/or failures induced. Modify fips_test_suite
95 to use callback. Always run all selftests even if one fails.
98 *) XTS support including algorithm test driver in the fips_gcmtest program.
99 Note: this does increase the maximum key length from 32 to 64 bytes but
100 there should be no binary compatibility issues as existing applications
101 will never use XTS mode.
104 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
105 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
106 performs algorithm blocking for unapproved PRNG types. Also do not
107 set PRNG type in FIPS_mode_set(): leave this to the application.
108 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
109 the standard OpenSSL PRNG: set additional data to a date time vector.
112 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
113 This shouldn't present any incompatibility problems because applications
114 shouldn't be using these directly and any that are will need to rethink
115 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
118 *) Extensive self tests and health checking required by SP800-90 DRBG.
119 Remove strength parameter from FIPS_drbg_instantiate and always
120 instantiate at maximum supported strength.
123 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
126 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
129 *) New function DH_compute_key_padded() to compute a DH key and pad with
130 leading zeroes if needed: this complies with SP800-56A et al.
133 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
134 anything, incomplete, subject to change and largely untested at present.
137 *) Modify fipscanisteronly build option to only build the necessary object
138 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
141 *) Add experimental option FIPSSYMS to give all symbols in
142 fipscanister.o and FIPS or fips prefix. This will avoid
143 conflicts with future versions of OpenSSL. Add perl script
144 util/fipsas.pl to preprocess assembly language source files
145 and rename any affected symbols.
148 *) Add selftest checks and algorithm block of non-fips algorithms in
149 FIPS mode. Remove DES2 from selftests.
152 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
153 return internal method without any ENGINE dependencies. Add new
154 tiny fips sign and verify functions.
157 *) New build option no-ec2m to disable characteristic 2 code.
160 *) New build option "fipscanisteronly". This only builds fipscanister.o
161 and (currently) associated fips utilities. Uses the file Makefile.fips
162 instead of Makefile.org as the prototype.
165 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
166 Update fips_gcmtest to use IV generator.
169 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
170 setting output buffer to NULL. The *Final function must be
171 called although it will not retrieve any additional data. The tag
172 can be set or retrieved with a ctrl. The IV length is by default 12
173 bytes (96 bits) but can be set to an alternative value. If the IV
174 length exceeds the maximum IV length (currently 16 bytes) it cannot be
178 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
179 underlying do_cipher function handles all cipher semantics itself
180 including padding and finalisation. This is useful if (for example)
181 an ENGINE cipher handles block padding itself. The behaviour of
182 do_cipher is subtly changed if this flag is set: the return value
183 is the number of characters written to the output buffer (zero is
184 no longer an error code) or a negative error code. Also if the
185 input buffer is NULL and length 0 finalisation should be performed.
188 *) If a candidate issuer certificate is already part of the constructed
189 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
192 *) Improve forward-security support: add functions
194 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
195 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
197 for use by SSL/TLS servers; the callback function will be called whenever a
198 new session is created, and gets to decide whether the session may be
199 cached to make it resumable (return 0) or not (return 1). (As by the
200 SSL/TLS protocol specifications, the session_id sent by the server will be
201 empty to indicate that the session is not resumable; also, the server will
202 not generate RFC 4507 (RFC 5077) session tickets.)
204 A simple reasonable callback implementation is to return is_forward_secure.
205 This parameter will be set to 1 or 0 depending on the ciphersuite selected
206 by the SSL/TLS server library, indicating whether it can provide forward
208 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
210 *) New function OPENSSL_gmtime_diff to find the difference in days
211 and seconds between two tm structures. This will be used to provide
212 additional functionality for ASN1_TIME.
215 *) Add -trusted_first option which attempts to find certificates in the
216 trusted store even if an untrusted chain is also supplied.
219 *) Initial experimental support for explicitly trusted non-root CAs.
220 OpenSSL still tries to build a complete chain to a root but if an
221 intermediate CA has a trust setting included that is used. The first
222 setting is used: whether to trust or reject.
225 *) New -verify_name option in command line utilities to set verification
229 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
230 Add CMAC pkey methods.
233 *) Experimental regnegotiation in s_server -www mode. If the client
234 browses /reneg connection is renegotiated. If /renegcert it is
235 renegotiated requesting a certificate.
238 *) Add an "external" session cache for debugging purposes to s_server. This
239 should help trace issues which normally are only apparent in deployed
240 multi-process servers.
243 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
244 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
245 BIO_set_cipher() and some obscure PEM functions were changed so they
246 can now return an error. The RAND changes required a change to the
247 RAND_METHOD structure.
250 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
251 a gcc attribute to warn if the result of a function is ignored. This
252 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
253 whose return value is often ignored.
256 Changes between 1.0.0f and 1.0.1 [xx XXX xxxx]
258 *) Add support for TLS/DTLS heartbeats.
259 [Robin Seggelmann <seggelmann@fh-muenster.de>]
261 *) Add support for SCTP.
262 [Robin Seggelmann <seggelmann@fh-muenster.de>]
264 *) Improved PRNG seeding for VOS.
265 [Paul Green <Paul.Green@stratus.com>]
267 *) Extensive assembler packs updates, most notably:
269 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
270 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
271 - x86_64: bit-sliced AES implementation;
272 - ARM: NEON support, contemporary platforms optimizations;
273 - s390x: z196 support;
274 - *: GHASH and GF(2^m) multiplication implementations;
278 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
279 (removal of unnecessary code)
280 [Peter Sylvester <peter.sylvester@edelweb.fr>]
282 *) Add -attime option to openssl utilities.
283 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
285 *) Add TLS key material exporter from RFC 5705.
288 *) Add DTLS-SRTP negotiation from RFC 5764.
291 *) Add Next Protocol Negotiation,
292 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
293 disabled with a no-npn flag to config or Configure. Code donated
295 [Adam Langley <agl@google.com> and Ben Laurie]
297 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
298 NIST-P256, NIST-P521, with constant-time single point multiplication on
299 typical inputs. Compiler support for the nonstandard type __uint128_t is
300 required to use this (present in gcc 4.4 and later, for 64-bit builds).
301 Code made available under Apache License version 2.0.
303 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
304 line to include this in your build of OpenSSL, and run "make depend" (or
305 "make update"). This enables the following EC_METHODs:
307 EC_GFp_nistp224_method()
308 EC_GFp_nistp256_method()
309 EC_GFp_nistp521_method()
311 EC_GROUP_new_by_curve_name() will automatically use these (while
312 EC_GROUP_new_curve_GFp() currently prefers the more flexible
314 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
316 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
317 all platforms. Move ssize_t definition from e_os.h to the public
318 header file e_os2.h as it now appears in public header file cms.h
321 *) New -sigopt option to the ca, req and x509 utilities. Additional
322 signature parameters can be passed using this option and in
326 *) Add RSA PSS signing function. This will generate and set the
327 appropriate AlgorithmIdentifiers for PSS based on those in the
328 corresponding EVP_MD_CTX structure. No application support yet.
331 *) Support for companion algorithm specific ASN1 signing routines.
332 New function ASN1_item_sign_ctx() signs a pre-initialised
333 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
334 the appropriate parameters.
337 *) Add new algorithm specific ASN1 verification initialisation function
338 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
339 handling will be the same no matter what EVP_PKEY_METHOD is used.
340 Add a PSS handler to support verification of PSS signatures: checked
341 against a number of sample certificates.
344 *) Add signature printing for PSS. Add PSS OIDs.
345 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
347 *) Add algorithm specific signature printing. An individual ASN1 method
348 can now print out signatures instead of the standard hex dump.
350 More complex signatures (e.g. PSS) can print out more meaningful
351 information. Include DSA version that prints out the signature
355 *) Password based recipient info support for CMS library: implementing
359 *) Split password based encryption into PBES2 and PBKDF2 functions. This
360 neatly separates the code into cipher and PBE sections and is required
361 for some algorithms that split PBES2 into separate pieces (such as
365 *) Session-handling fixes:
366 - Fix handling of connections that are resuming with a session ID,
367 but also support Session Tickets.
368 - Fix a bug that suppressed issuing of a new ticket if the client
369 presented a ticket with an expired session.
370 - Try to set the ticket lifetime hint to something reasonable.
371 - Make tickets shorter by excluding irrelevant information.
372 - On the client side, don't ignore renewed tickets.
373 [Adam Langley, Bodo Moeller (Google)]
375 *) Fix PSK session representation.
378 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
380 This work was sponsored by Intel.
383 *) Add GCM support to TLS library. Some custom code is needed to split
384 the IV between the fixed (from PRF) and explicit (from TLS record)
385 portions. This adds all GCM ciphersuites supported by RFC5288 and
386 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
387 add a special AESGCM string for GCM only.
390 *) Expand range of ctrls for AES GCM. Permit setting invocation
391 field on decrypt and retrieval of invocation field only on encrypt.
394 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
395 As required by RFC5289 these ciphersuites cannot be used if for
396 versions of TLS earlier than 1.2.
399 *) For FIPS capable OpenSSL interpret a NULL default public key method
400 as unset and return the appopriate default but do *not* set the default.
401 This means we can return the appopriate method in applications that
402 swicth between FIPS and non-FIPS modes.
405 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
406 ENGINE is used then we cannot handle that in the FIPS module so we
407 keep original code iff non-FIPS operations are allowed.
410 *) Add -attime option to openssl verify.
411 [Peter Eckersley <pde@eff.org> and Ben Laurie]
413 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
416 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
417 FIPS EC methods unconditionally for now.
420 *) New build option no-ec2m to disable characteristic 2 code.
423 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
424 all cases can be covered as some introduce binary incompatibilities.
427 *) Redirect RSA operations to FIPS module including keygen,
428 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
431 *) Add similar low level API blocking to ciphers.
434 *) Low level digest APIs are not approved in FIPS mode: any attempt
435 to use these will cause a fatal error. Applications that *really* want
436 to use them can use the private_* version instead.
439 *) Redirect cipher operations to FIPS module for FIPS builds.
442 *) Redirect digest operations to FIPS module for FIPS builds.
445 *) Update build system to add "fips" flag which will link in fipscanister.o
446 for static and shared library builds embedding a signature if needed.
449 *) Output TLS supported curves in preference order instead of numerical
450 order. This is currently hardcoded for the highest order curves first.
451 This should be configurable so applications can judge speed vs strength.
454 *) Add TLS v1.2 server support for client authentication.
457 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
461 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
462 FIPS modules versions.
465 *) Add TLS v1.2 client side support for client authentication. Keep cache
466 of handshake records longer as we don't know the hash algorithm to use
467 until after the certificate request message is received.
470 *) Initial TLS v1.2 client support. Add a default signature algorithms
471 extension including all the algorithms we support. Parse new signature
472 format in client key exchange. Relax some ECC signing restrictions for
473 TLS v1.2 as indicated in RFC5246.
476 *) Add server support for TLS v1.2 signature algorithms extension. Switch
477 to new signature format when needed using client digest preference.
478 All server ciphersuites should now work correctly in TLS v1.2. No client
479 support yet and no support for client certificates.
482 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
483 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
484 ciphersuites. At present only RSA key exchange ciphersuites work with
485 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
486 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
487 and version checking.
490 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
491 with this defined it will not be affected by any changes to ssl internal
492 structures. Add several utility functions to allow openssl application
493 to work with OPENSSL_NO_SSL_INTERN defined.
497 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
499 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
502 *) Permit abbreviated handshakes when renegotiating using the function
503 SSL_renegotiate_abbreviated().
504 [Robin Seggelmann <seggelmann@fh-muenster.de>]
506 *) Add call to ENGINE_register_all_complete() to
507 ENGINE_load_builtin_engines(), so some implementations get used
508 automatically instead of needing explicit application support.
511 *) Add support for TLS key exporter as described in RFC5705.
512 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
514 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
515 a few changes are required:
517 Add SSL_OP_NO_TLSv1_1 flag.
519 Update version checking logic to handle version 1.1.
520 Add explicit IV handling (ported from DTLS code).
521 Add command line options to s_client/s_server.
524 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
526 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
527 of the Vaudenay padding oracle attack on CBC mode encryption
528 which enables an efficient plaintext recovery attack against
529 the OpenSSL implementation of DTLS. Their attack exploits timing
530 differences arising during decryption processing. A research
531 paper describing this attack can be found at:
532 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
533 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
534 Security Group at Royal Holloway, University of London
535 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
536 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
537 for preparing the fix. (CVE-2011-4108)
538 [Robin Seggelmann, Michael Tuexen]
540 *) Clear bytes used for block padding of SSL 3.0 records.
542 [Adam Langley (Google)]
544 *) Only allow one SGC handshake restart for SSL/TLS. (CVE-2011-4619)
545 [Adam Langley (Google)]
547 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
548 [Andrey Kulikov <amdeich@gmail.com>]
550 *) Prevent malformed RFC3779 data triggering an assertion failure.
551 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
552 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
553 [Rob Austein <sra@hactrn.net>]
555 *) Fix ssl_ciph.c set-up race.
556 [Adam Langley (Google)]
558 *) Fix spurious failures in ecdsatest.c.
559 [Emilia Käsper (Google)]
561 *) Fix the BIO_f_buffer() implementation (which was mixing different
562 interpretations of the '..._len' fields).
563 [Adam Langley (Google)]
565 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
566 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
567 threads won't reuse the same blinding coefficients.
569 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
570 lock to call BN_BLINDING_invert_ex, and avoids one use of
571 BN_BLINDING_update for each BN_BLINDING structure (previously,
572 the last update always remained unused).
573 [Emilia Käsper (Google)]
575 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
576 [Bob Buckholz (Google)]
578 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
580 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
581 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
582 [Kaspar Brand <ossl@velox.ch>]
584 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
585 for multi-threaded use of ECDH. (CVE-2011-3210)
586 [Adam Langley (Google)]
588 *) Fix x509_name_ex_d2i memory leak on bad inputs.
591 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
592 signature public key algorithm by using OID xref utilities instead.
593 Before this you could only use some ECC ciphersuites with SHA1 only.
596 *) Add protection against ECDSA timing attacks as mentioned in the paper
597 by Billy Bob Brumley and Nicola Tuveri, see:
599 http://eprint.iacr.org/2011/232.pdf
601 [Billy Bob Brumley and Nicola Tuveri]
603 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
605 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
606 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
608 *) Fix bug in string printing code: if *any* escaping is enabled we must
609 escape the escape character (backslash) or the resulting string is
613 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
615 *) Disable code workaround for ancient and obsolete Netscape browsers
616 and servers: an attacker can use it in a ciphersuite downgrade attack.
617 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
620 *) Fixed J-PAKE implementation error, originally discovered by
621 Sebastien Martini, further info and confirmation from Stefan
622 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
625 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
627 *) Fix extension code to avoid race conditions which can result in a buffer
628 overrun vulnerability: resumed sessions must not be modified as they can
629 be shared by multiple threads. CVE-2010-3864
632 *) Fix WIN32 build system to correctly link an ENGINE directory into
636 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
638 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
640 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
642 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
644 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
645 context. The operation can be customised via the ctrl mechanism in
646 case ENGINEs want to include additional functionality.
649 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
652 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
653 output hashes compatible with older versions of OpenSSL.
654 [Willy Weisz <weisz@vcpc.univie.ac.at>]
656 *) Fix compression algorithm handling: if resuming a session use the
657 compression algorithm of the resumed session instead of determining
658 it from client hello again. Don't allow server to change algorithm.
661 *) Add load_crls() function to apps tidying load_certs() too. Add option
662 to verify utility to allow additional CRLs to be included.
665 *) Update OCSP request code to permit adding custom headers to the request:
666 some responders need this.
669 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
671 [Julia Lawall <julia@diku.dk>]
673 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
674 needlessly dereferenced structures, used obsolete functions and
675 didn't handle all updated verify codes correctly.
678 *) Disable MD2 in the default configuration.
681 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
682 indicate the initial BIO being pushed or popped. This makes it possible
683 to determine whether the BIO is the one explicitly called or as a result
684 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
685 it handles reference counts correctly and doesn't zero out the I/O bio
686 when it is not being explicitly popped. WARNING: applications which
687 included workarounds for the old buggy behaviour will need to be modified
688 or they could free up already freed BIOs.
691 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
692 renaming to all platforms (within the 0.9.8 branch, this was
693 done conditionally on Netware platforms to avoid a name clash).
694 [Guenter <lists@gknw.net>]
696 *) Add ECDHE and PSK support to DTLS.
697 [Michael Tuexen <tuexen@fh-muenster.de>]
699 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
703 *) Add "missing" function EVP_MD_flags() (without this the only way to
704 retrieve a digest flags is by accessing the structure directly. Update
705 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
706 or cipher is registered as in the "from" argument. Print out all
707 registered digests in the dgst usage message instead of manually
708 attempting to work them out.
711 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
712 this allows the use of compression and extensions. Change default cipher
713 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
714 by default unless an application cipher string requests it.
717 *) Alter match criteria in PKCS12_parse(). It used to try to use local
718 key ids to find matching certificates and keys but some PKCS#12 files
719 don't follow the (somewhat unwritten) rules and this strategy fails.
720 Now just gather all certificates together and the first private key
721 then look for the first certificate that matches the key.
724 *) Support use of registered digest and cipher names for dgst and cipher
725 commands instead of having to add each one as a special case. So now
732 openssl dgst -sha256 foo
734 and this works for ENGINE based algorithms too.
738 *) Update Gost ENGINE to support parameter files.
739 [Victor B. Wagner <vitus@cryptocom.ru>]
741 *) Support GeneralizedTime in ca utility.
742 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
744 *) Enhance the hash format used for certificate directory links. The new
745 form uses the canonical encoding (meaning equivalent names will work
746 even if they aren't identical) and uses SHA1 instead of MD5. This form
747 is incompatible with the older format and as a result c_rehash should
748 be used to rebuild symbolic links.
751 *) Make PKCS#8 the default write format for private keys, replacing the
752 traditional format. This form is standardised, more secure and doesn't
753 include an implicit MD5 dependency.
756 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
757 committed to OpenSSL should pass this lot as a minimum.
760 *) Add session ticket override functionality for use by EAP-FAST.
761 [Jouni Malinen <j@w1.fi>]
763 *) Modify HMAC functions to return a value. Since these can be implemented
764 in an ENGINE errors can occur.
767 *) Type-checked OBJ_bsearch_ex.
770 *) Type-checked OBJ_bsearch. Also some constification necessitated
771 by type-checking. Still to come: TXT_DB, bsearch(?),
772 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
776 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
777 seconds to a tm structure directly, instead of going through OS
778 specific date routines. This avoids any issues with OS routines such
779 as the year 2038 bug. New *_adj() functions for ASN1 time structures
780 and X509_time_adj_ex() to cover the extended range. The existing
781 X509_time_adj() is still usable and will no longer have any date issues.
784 *) Delta CRL support. New use deltas option which will attempt to locate
785 and search any appropriate delta CRLs available.
787 This work was sponsored by Google.
790 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
791 code and add additional score elements. Validate alternate CRL paths
792 as part of the CRL checking and indicate a new error "CRL path validation
793 error" in this case. Applications wanting additional details can use
794 the verify callback and check the new "parent" field. If this is not
795 NULL CRL path validation is taking place. Existing applications wont
796 see this because it requires extended CRL support which is off by
799 This work was sponsored by Google.
802 *) Support for freshest CRL extension.
804 This work was sponsored by Google.
807 *) Initial indirect CRL support. Currently only supported in the CRLs
808 passed directly and not via lookup. Process certificate issuer
809 CRL entry extension and lookup CRL entries by bother issuer name
810 and serial number. Check and process CRL issuer entry in IDP extension.
812 This work was sponsored by Google.
815 *) Add support for distinct certificate and CRL paths. The CRL issuer
816 certificate is validated separately in this case. Only enabled if
817 an extended CRL support flag is set: this flag will enable additional
818 CRL functionality in future.
820 This work was sponsored by Google.
823 *) Add support for policy mappings extension.
825 This work was sponsored by Google.
828 *) Fixes to pathlength constraint, self issued certificate handling,
829 policy processing to align with RFC3280 and PKITS tests.
831 This work was sponsored by Google.
834 *) Support for name constraints certificate extension. DN, email, DNS
835 and URI types are currently supported.
837 This work was sponsored by Google.
840 *) To cater for systems that provide a pointer-based thread ID rather
841 than numeric, deprecate the current numeric thread ID mechanism and
842 replace it with a structure and associated callback type. This
843 mechanism allows a numeric "hash" to be extracted from a thread ID in
844 either case, and on platforms where pointers are larger than 'long',
845 mixing is done to help ensure the numeric 'hash' is usable even if it
846 can't be guaranteed unique. The default mechanism is to use "&errno"
847 as a pointer-based thread ID to distinguish between threads.
849 Applications that want to provide their own thread IDs should now use
850 CRYPTO_THREADID_set_callback() to register a callback that will call
851 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
853 Note that ERR_remove_state() is now deprecated, because it is tied
854 to the assumption that thread IDs are numeric. ERR_remove_state(0)
855 to free the current thread's error state should be replaced by
856 ERR_remove_thread_state(NULL).
858 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
859 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
860 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
861 application was previously providing a numeric thread callback that
862 was inappropriate for distinguishing threads, then uniqueness might
863 have been obtained with &errno that happened immediately in the
864 intermediate development versions of OpenSSL; this is no longer the
865 case, the numeric thread callback will now override the automatic use
867 [Geoff Thorpe, with help from Bodo Moeller]
869 *) Initial support for different CRL issuing certificates. This covers a
870 simple case where the self issued certificates in the chain exist and
871 the real CRL issuer is higher in the existing chain.
873 This work was sponsored by Google.
876 *) Removed effectively defunct crypto/store from the build.
879 *) Revamp of STACK to provide stronger type-checking. Still to come:
880 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
881 ASN1_STRING, CONF_VALUE.
884 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
885 RAM on SSL connections. This option can save about 34k per idle SSL.
888 *) Revamp of LHASH to provide stronger type-checking. Still to come:
889 STACK, TXT_DB, bsearch, qsort.
892 *) Initial support for Cryptographic Message Syntax (aka CMS) based
893 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
894 support for data, signedData, compressedData, digestedData and
895 encryptedData, envelopedData types included. Scripts to check against
896 RFC4134 examples draft and interop and consistency checks of many
897 content types and variants.
900 *) Add options to enc utility to support use of zlib compression BIO.
903 *) Extend mk1mf to support importing of options and assembly language
904 files from Configure script, currently only included in VC-WIN32.
905 The assembly language rules can now optionally generate the source
906 files from the associated perl scripts.
909 *) Implement remaining functionality needed to support GOST ciphersuites.
910 Interop testing has been performed using CryptoPro implementations.
911 [Victor B. Wagner <vitus@cryptocom.ru>]
913 *) s390x assembler pack.
916 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
920 *) Implement Opaque PRF Input TLS extension as specified in
921 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
922 official specification yet and no extension type assignment by
923 IANA exists, this extension (for now) will have to be explicitly
924 enabled when building OpenSSL by providing the extension number
925 to use. For example, specify an option
927 -DTLSEXT_TYPE_opaque_prf_input=0x9527
929 to the "config" or "Configure" script to enable the extension,
930 assuming extension number 0x9527 (which is a completely arbitrary
931 and unofficial assignment based on the MD5 hash of the Internet
932 Draft). Note that by doing so, you potentially lose
933 interoperability with other TLS implementations since these might
934 be using the same extension number for other purposes.
936 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
937 opaque PRF input value to use in the handshake. This will create
938 an interal copy of the length-'len' string at 'src', and will
939 return non-zero for success.
941 To get more control and flexibility, provide a callback function
944 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
945 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
949 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
952 Callback function 'cb' will be called in handshakes, and is
953 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
954 Argument 'arg' is for application purposes (the value as given to
955 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
956 be provided to the callback function). The callback function
957 has to return non-zero to report success: usually 1 to use opaque
958 PRF input just if possible, or 2 to enforce use of the opaque PRF
959 input. In the latter case, the library will abort the handshake
960 if opaque PRF input is not successfully negotiated.
962 Arguments 'peerinput' and 'len' given to the callback function
963 will always be NULL and 0 in the case of a client. A server will
964 see the client's opaque PRF input through these variables if
965 available (NULL and 0 otherwise). Note that if the server
966 provides an opaque PRF input, the length must be the same as the
967 length of the client's opaque PRF input.
969 Note that the callback function will only be called when creating
970 a new session (session resumption can resume whatever was
971 previously negotiated), and will not be called in SSL 2.0
972 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
973 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
974 for applications that need to enforce opaque PRF input.
978 *) Update ssl code to support digests other than SHA1+MD5 for handshake
981 [Victor B. Wagner <vitus@cryptocom.ru>]
983 *) Add RFC4507 support to OpenSSL. This includes the corrections in
984 RFC4507bis. The encrypted ticket format is an encrypted encoded
985 SSL_SESSION structure, that way new session features are automatically
988 If a client application caches session in an SSL_SESSION structure
989 support is transparent because tickets are now stored in the encoded
992 The SSL_CTX structure automatically generates keys for ticket
993 protection in servers so again support should be possible
994 with no application modification.
996 If a client or server wishes to disable RFC4507 support then the option
997 SSL_OP_NO_TICKET can be set.
999 Add a TLS extension debugging callback to allow the contents of any client
1000 or server extensions to be examined.
1002 This work was sponsored by Google.
1005 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1006 OpenSSL should now compile cleanly on gcc 4.2
1007 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1009 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1010 support including streaming MAC support: this is required for GOST
1011 ciphersuite support.
1012 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1014 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1015 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1016 to output in BER and PEM format.
1019 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1020 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1021 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1022 ENGINE support for HMAC keys which are unextractable. New -mac and
1023 -macopt options to dgst utility.
1026 *) New option -sigopt to dgst utility. Update dgst to use
1027 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1028 alternative signing paramaters such as X9.31 or PSS in the dgst
1032 *) Change ssl_cipher_apply_rule(), the internal function that does
1033 the work each time a ciphersuite string requests enabling
1034 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1035 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1036 the order of disabled ciphersuites such that those ciphersuites
1037 that most recently went from enabled to disabled not only stay
1038 in order with respect to each other, but also have higher priority
1039 than other disabled ciphersuites the next time ciphersuites are
1042 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1043 the same ciphersuites as with "HIGH" alone, but in a specific
1044 order where the PSK ciphersuites come first (since they are the
1045 most recently disabled ciphersuites when "HIGH" is parsed).
1047 Also, change ssl_create_cipher_list() (using this new
1048 funcionality) such that between otherwise identical
1049 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1053 *) Change ssl_create_cipher_list() so that it automatically
1054 arranges the ciphersuites in reasonable order before starting
1055 to process the rule string. Thus, the definition for "DEFAULT"
1056 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1057 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1058 This makes it much easier to arrive at a reasonable default order
1059 in applications for which anonymous ciphers are OK (meaning
1060 that you can't actually use DEFAULT).
1061 [Bodo Moeller; suggested by Victor Duchovni]
1063 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1064 processing) into multiple integers instead of setting
1065 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1066 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1067 (These masks as well as the individual bit definitions are hidden
1068 away into the non-exported interface ssl/ssl_locl.h, so this
1069 change to the definition of the SSL_CIPHER structure shouldn't
1070 affect applications.) This give us more bits for each of these
1071 categories, so there is no longer a need to coagulate AES128 and
1072 AES256 into a single algorithm bit, and to coagulate Camellia128
1073 and Camellia256 into a single algorithm bit, which has led to all
1076 Thus, among other things, the kludge introduced in 0.9.7m and
1077 0.9.8e for masking out AES256 independently of AES128 or masking
1078 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1080 With the change, we also introduce new ciphersuite aliases that
1081 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1085 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1086 Use the leftmost N bytes of the signature input if the input is
1087 larger than the prime q (with N being the size in bytes of q).
1090 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1091 it yet and it is largely untested.
1094 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1097 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1098 some compilers (gcc 4.2 and later) reject their use. Safestack is
1099 reimplemented. Update ASN1 to avoid use of legacy functions.
1102 *) Win32/64 targets are linked with Winsock2.
1105 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1106 to external functions. This can be used to increase CRL handling
1107 efficiency especially when CRLs are very large by (for example) storing
1108 the CRL revoked certificates in a database.
1111 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1112 new CRLs added to a directory can be used. New command line option
1113 -verify_return_error to s_client and s_server. This causes real errors
1114 to be returned by the verify callback instead of carrying on no matter
1115 what. This reflects the way a "real world" verify callback would behave.
1118 *) GOST engine, supporting several GOST algorithms and public key formats.
1119 Kindly donated by Cryptocom.
1122 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1123 partitioned by DP are handled but no indirect CRL or reason partitioning
1124 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1125 selected via a scoring technique which handles IDP and AKID in CRLs.
1128 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1129 will ultimately be used for all verify operations: this will remove the
1130 X509_STORE dependency on certificate verification and allow alternative
1131 lookup methods. X509_STORE based implementations of these two callbacks.
1134 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1135 Modify get_crl() to find a valid (unexpired) CRL if possible.
1138 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1139 this would be called X509_CRL_cmp() but that name is already used by
1140 a function that just compares CRL issuer names. Cache several CRL
1141 extensions in X509_CRL structure and cache CRLDP in X509.
1144 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1145 this maps equivalent X509_NAME structures into a consistent structure.
1146 Name comparison can then be performed rapidly using memcmp().
1149 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1153 *) Allow digests to supply their own micalg string for S/MIME type using
1154 the ctrl EVP_MD_CTRL_MICALG.
1157 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1158 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1159 ctrl. It can then customise the structure before and/or after signing
1163 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1164 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1165 to free up any added signature OIDs.
1168 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1169 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1170 digest and cipher tables. New options added to openssl utility:
1171 list-message-digest-algorithms and list-cipher-algorithms.
1174 *) Change the array representation of binary polynomials: the list
1175 of degrees of non-zero coefficients is now terminated with -1.
1176 Previously it was terminated with 0, which was also part of the
1177 value; thus, the array representation was not applicable to
1178 polynomials where t^0 has coefficient zero. This change makes
1179 the array representation useful in a more general context.
1182 *) Various modifications and fixes to SSL/TLS cipher string
1183 handling. For ECC, the code now distinguishes between fixed ECDH
1184 with RSA certificates on the one hand and with ECDSA certificates
1185 on the other hand, since these are separate ciphersuites. The
1186 unused code for Fortezza ciphersuites has been removed.
1188 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1189 (not "ECDHE"). For consistency with the code for DH
1190 certificates, use of ECDH certificates is now considered ECDH
1191 authentication, not RSA or ECDSA authentication (the latter is
1192 merely the CA's signing algorithm and not actively used in the
1195 The temporary ciphersuite alias "ECCdraft" is no longer
1196 available, and ECC ciphersuites are no longer excluded from "ALL"
1197 and "DEFAULT". The following aliases now exist for RFC 4492
1198 ciphersuites, most of these by analogy with the DH case:
1200 kECDHr - ECDH cert, signed with RSA
1201 kECDHe - ECDH cert, signed with ECDSA
1202 kECDH - ECDH cert (signed with either RSA or ECDSA)
1203 kEECDH - ephemeral ECDH
1204 ECDH - ECDH cert or ephemeral ECDH
1210 AECDH - anonymous ECDH
1211 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1215 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1216 Use correct micalg parameters depending on digest(s) in signed message.
1219 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1220 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1223 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1224 an engine to register a method. Add ENGINE lookups for methods and
1225 functional reference processing.
1228 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1229 EVP_{Sign,Verify}* which allow an application to customise the signature
1233 *) New -resign option to smime utility. This adds one or more signers
1234 to an existing PKCS#7 signedData structure. Also -md option to use an
1235 alternative message digest algorithm for signing.
1238 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1239 create PKCS7 structures containing multiple signers. Update smime
1240 application to support multiple signers.
1243 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1247 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1248 Reorganize PBE internals to lookup from a static table using NIDs,
1249 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1250 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1251 PRF which will be automatically used with PBES2.
1254 *) Replace the algorithm specific calls to generate keys in "req" with the
1258 *) Update PKCS#7 enveloped data routines to use new API. This is now
1259 supported by any public key method supporting the encrypt operation. A
1260 ctrl is added to allow the public key algorithm to examine or modify
1261 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1265 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1266 a default digest type to use. In most cases this will be SHA1 but some
1267 algorithms (such as GOST) need to specify an alternative digest. The
1268 return value indicates how strong the prefernce is 1 means optional and
1269 2 is mandatory (that is it is the only supported type). Modify
1270 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1271 use the default md. Update openssl utilities to use the default digest
1272 type for signing if it is not explicitly indicated.
1275 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1276 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1277 signing method from the key type. This effectively removes the link
1278 between digests and public key types.
1281 *) Add an OID cross reference table and utility functions. Its purpose is to
1282 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1283 rsaEncryption. This will allow some of the algorithm specific hackery
1284 needed to use the correct OID to be removed.
1287 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1288 structures for PKCS7_sign(). They are now set up by the relevant public
1292 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1295 *) Add support for key derivation (agreement) in the API, DH method and
1299 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1300 public and private key formats. As a side effect these add additional
1301 command line functionality not previously available: DSA signatures can be
1302 generated and verified using pkeyutl and DH key support and generation in
1307 [Oliver Tappe <zooey@hirschkaefer.de>]
1309 *) New make target "install_html_docs" installs HTML renditions of the
1311 [Oliver Tappe <zooey@hirschkaefer.de>]
1313 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1314 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1315 support key and parameter generation and add initial key generation
1316 functionality for RSA.
1319 *) Add functions for main EVP_PKEY_method operations. The undocumented
1320 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1321 EVP_PKEY_{encrypt,decrypt}_old.
1324 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1325 key API, doesn't do much yet.
1328 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1329 public key algorithms. New option to openssl utility:
1330 "list-public-key-algorithms" to print out info.
1333 *) Implement the Supported Elliptic Curves Extension for
1334 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1337 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1338 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1341 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1342 utilities such as rsa, dsa, dsaparam etc except they process any key
1346 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1347 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1348 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1352 *) Initial support for pluggable public key ASN1.
1353 De-spaghettify the public key ASN1 handling. Move public and private
1354 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1355 algorithm specific handling to a single module within the relevant
1356 algorithm directory. Add functions to allow (near) opaque processing
1357 of public and private key structures.
1360 *) Implement the Supported Point Formats Extension for
1361 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1364 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1365 for the psk identity [hint] and the psk callback functions to the
1366 SSL_SESSION, SSL and SSL_CTX structure.
1369 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1373 SSL_CTX_use_psk_identity_hint
1374 SSL_get_psk_identity_hint
1375 SSL_get_psk_identity
1376 SSL_use_psk_identity_hint
1378 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1380 *) Add RFC 3161 compliant time stamp request creation, response generation
1381 and response verification functionality.
1382 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1384 *) Add initial support for TLS extensions, specifically for the server_name
1385 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1386 have new members for a host name. The SSL data structure has an
1387 additional member SSL_CTX *initial_ctx so that new sessions can be
1388 stored in that context to allow for session resumption, even after the
1389 SSL has been switched to a new SSL_CTX in reaction to a client's
1390 server_name extension.
1392 New functions (subject to change):
1394 SSL_get_servername()
1395 SSL_get_servername_type()
1398 New CTRL codes and macros (subject to change):
1400 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1401 - SSL_CTX_set_tlsext_servername_callback()
1402 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1403 - SSL_CTX_set_tlsext_servername_arg()
1404 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1406 openssl s_client has a new '-servername ...' option.
1408 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1409 '-key2 ...', '-servername_fatal' (subject to change). This allows
1410 testing the HostName extension for a specific single host name ('-cert'
1411 and '-key' remain fallbacks for handshakes without HostName
1412 negotiation). If the unrecogninzed_name alert has to be sent, this by
1413 default is a warning; it becomes fatal with the '-servername_fatal'
1416 [Peter Sylvester, Remy Allais, Christophe Renou]
1418 *) Whirlpool hash implementation is added.
1421 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1422 bn(64,32). Because of instruction set limitations it doesn't have
1423 any negative impact on performance. This was done mostly in order
1424 to make it possible to share assembler modules, such as bn_mul_mont
1425 implementations, between 32- and 64-bit builds without hassle.
1428 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1429 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1433 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1434 dedicated Montgomery multiplication procedure, is introduced.
1435 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1436 "64-bit" performance on certain 32-bit targets.
1439 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1440 in SSL structures. New SSL ctrl to set maximum send fragment size.
1441 Save memory by seeting the I/O buffer sizes dynamically instead of
1442 using the maximum available value.
1445 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1446 in addition to the text details.
1449 *) Very, very preliminary EXPERIMENTAL support for printing of general
1450 ASN1 structures. This currently produces rather ugly output and doesn't
1451 handle several customised structures at all.
1454 *) Integrated support for PVK file format and some related formats such
1455 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1456 these in the 'rsa' and 'dsa' utilities.
1459 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1462 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1463 place for the (very old) "NETSCAPE" format certificates which are now
1464 handled using new ASN1 code equivalents.
1467 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1468 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1469 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1472 *) Modify CRL distribution points extension code to print out previously
1473 unsupported fields. Enhance extension setting code to allow setting of
1477 *) Add print and set support for Issuing Distribution Point CRL extension.
1480 *) Change 'Configure' script to enable Camellia by default.
1483 Changes between 0.9.8r and 0.9.8s [xx XXX xxxx]
1485 *) Fix ssl_ciph.c set-up race.
1486 [Adam Langley (Google)]
1488 *) Fix spurious failures in ecdsatest.c.
1489 [Emilia Käsper (Google)]
1491 *) Fix the BIO_f_buffer() implementation (which was mixing different
1492 interpretations of the '..._len' fields).
1493 [Adam Langley (Google)]
1495 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1496 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1497 threads won't reuse the same blinding coefficients.
1499 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1500 lock to call BN_BLINDING_invert_ex, and avoids one use of
1501 BN_BLINDING_update for each BN_BLINDING structure (previously,
1502 the last update always remained unused).
1503 [Emilia Käsper (Google)]
1505 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1506 for multi-threaded use of ECDH.
1507 [Adam Langley (Google)]
1509 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1512 *) Add protection against ECDSA timing attacks as mentioned in the paper
1513 by Billy Bob Brumley and Nicola Tuveri, see:
1515 http://eprint.iacr.org/2011/232.pdf
1517 [Billy Bob Brumley and Nicola Tuveri]
1519 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1521 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1522 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1524 *) Fix bug in string printing code: if *any* escaping is enabled we must
1525 escape the escape character (backslash) or the resulting string is
1529 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1531 *) Disable code workaround for ancient and obsolete Netscape browsers
1532 and servers: an attacker can use it in a ciphersuite downgrade attack.
1533 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1536 *) Fixed J-PAKE implementation error, originally discovered by
1537 Sebastien Martini, further info and confirmation from Stefan
1538 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1541 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1543 *) Fix extension code to avoid race conditions which can result in a buffer
1544 overrun vulnerability: resumed sessions must not be modified as they can
1545 be shared by multiple threads. CVE-2010-3864
1548 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1551 *) Don't reencode certificate when calculating signature: cache and use
1552 the original encoding instead. This makes signature verification of
1553 some broken encodings work correctly.
1556 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1557 is also one of the inputs.
1558 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1560 *) Don't repeatedly append PBE algorithms to table if they already exist.
1561 Sort table on each new add. This effectively makes the table read only
1562 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1566 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1568 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1571 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1572 access or freeing data twice (CVE-2010-0742)
1573 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1575 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1576 common in certificates and some applications which only call
1577 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1581 Reduce copying into .apps and .test in makevms.com
1582 Don't try to use blank CA certificate in CA.com
1583 Allow use of C files from original directories in maketests.com
1584 [Steven M. Schweda" <sms@antinode.info>]
1586 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1588 *) When rejecting SSL/TLS records due to an incorrect version number, never
1589 update s->server with a new major version number. As of
1590 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1591 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1592 the previous behavior could result in a read attempt at NULL when
1593 receiving specific incorrect SSL/TLS records once record payload
1594 protection is active. (CVE-2010-0740)
1595 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1597 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1598 could be crashed if the relevant tables were not present (e.g. chrooted).
1599 [Tomas Hoger <thoger@redhat.com>]
1601 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1603 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1604 [Martin Olsson, Neel Mehta]
1606 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1607 accommodate for stack sorting, always a write lock!).
1610 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1611 excessive delays in the RAND_poll(): over a minute. As a workaround
1612 include a time check in the inner Heap32Next loop too.
1615 *) The code that handled flushing of data in SSL/TLS originally used the
1616 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1617 the problem outlined in PR#1949. The fix suggested there however can
1618 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1619 of Apache). So instead simplify the code to flush unconditionally.
1620 This should be fine since flushing with no data to flush is a no op.
1623 *) Handle TLS versions 2.0 and later properly and correctly use the
1624 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1625 off ancient servers have a habit of sticking around for a while...
1628 *) Modify compression code so it frees up structures without using the
1629 ex_data callbacks. This works around a problem where some applications
1630 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1631 restarting) then use compression (e.g. SSL with compression) later.
1632 This results in significant per-connection memory leaks and
1633 has caused some security issues including CVE-2008-1678 and
1637 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1638 change when encrypting or decrypting.
1641 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1642 connect and renegotiate with servers which do not support RI.
1643 Until RI is more widely deployed this option is enabled by default.
1646 *) Add "missing" ssl ctrls to clear options and mode.
1649 *) If client attempts to renegotiate and doesn't support RI respond with
1650 a no_renegotiation alert as required by RFC5746. Some renegotiating
1651 TLS clients will continue a connection gracefully when they receive
1652 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1653 waiting for a server hello which it will never receive. Now we treat a
1654 received no_renegotiation alert as a fatal error. This is because
1655 applications requesting a renegotiation might well expect it to succeed
1656 and would have no code in place to handle the server denying it so the
1657 only safe thing to do is to terminate the connection.
1660 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1661 peer supports secure renegotiation and 0 otherwise. Print out peer
1662 renegotiation support in s_client/s_server.
1665 *) Replace the highly broken and deprecated SPKAC certification method with
1666 the updated NID creation version. This should correctly handle UTF8.
1669 *) Implement RFC5746. Re-enable renegotiation but require the extension
1670 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1671 turns out to be a bad idea. It has been replaced by
1672 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1673 SSL_CTX_set_options(). This is really not recommended unless you
1674 know what you are doing.
1675 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1677 *) Fixes to stateless session resumption handling. Use initial_ctx when
1678 issuing and attempting to decrypt tickets in case it has changed during
1679 servername handling. Use a non-zero length session ID when attempting
1680 stateless session resumption: this makes it possible to determine if
1681 a resumption has occurred immediately after receiving server hello
1682 (several places in OpenSSL subtly assume this) instead of later in
1686 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1687 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1688 fixes for a few places where the return code is not checked
1690 [Julia Lawall <julia@diku.dk>]
1692 *) Add --strict-warnings option to Configure script to include devteam
1693 warnings in other configurations.
1696 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1697 makes it possible to install openssl libraries in locations which
1698 have names other than "lib", for example "/usr/lib64" which some
1700 [Steve Henson, based on patch from Jeremy Utley]
1702 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1703 X690 8.9.12 and can produce some misleading textual output of OIDs.
1704 [Steve Henson, reported by Dan Kaminsky]
1706 *) Delete MD2 from algorithm tables. This follows the recommendation in
1707 several standards that it is not used in new applications due to
1708 several cryptographic weaknesses. For binary compatibility reasons
1709 the MD2 API is still compiled in by default.
1712 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1716 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1717 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1719 [Guenter <lists@gknw.net>]
1721 *) Fix the server certificate chain building code to use X509_verify_cert(),
1722 it used to have an ad-hoc builder which was unable to cope with anything
1723 other than a simple chain.
1724 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1726 *) Don't check self signed certificate signatures in X509_verify_cert()
1727 by default (a flag can override this): it just wastes time without
1728 adding any security. As a useful side effect self signed root CAs
1729 with non-FIPS digests are now usable in FIPS mode.
1732 *) In dtls1_process_out_of_seq_message() the check if the current message
1733 is already buffered was missing. For every new message was memory
1734 allocated, allowing an attacker to perform an denial of service attack
1735 with sending out of seq handshake messages until there is no memory
1736 left. Additionally every future messege was buffered, even if the
1737 sequence number made no sense and would be part of another handshake.
1738 So only messages with sequence numbers less than 10 in advance will be
1739 buffered. (CVE-2009-1378)
1740 [Robin Seggelmann, discovered by Daniel Mentz]
1742 *) Records are buffered if they arrive with a future epoch to be
1743 processed after finishing the corresponding handshake. There is
1744 currently no limitation to this buffer allowing an attacker to perform
1745 a DOS attack with sending records with future epochs until there is no
1746 memory left. This patch adds the pqueue_size() function to detemine
1747 the size of a buffer and limits the record buffer to 100 entries.
1749 [Robin Seggelmann, discovered by Daniel Mentz]
1751 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1752 parent structure is freed. (CVE-2009-1379)
1755 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1756 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1759 [Ilya O. <vrghost@gmail.com>]
1761 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1763 *) Disable renegotiation completely - this fixes a severe security
1764 problem (CVE-2009-3555) at the cost of breaking all
1765 renegotiation. Renegotiation can be re-enabled by setting
1766 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1767 run-time. This is really not recommended unless you know what
1771 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1773 *) Don't set val to NULL when freeing up structures, it is freed up by
1774 underlying code. If sizeof(void *) > sizeof(long) this can result in
1775 zeroing past the valid field. (CVE-2009-0789)
1776 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1778 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1779 checked correctly. This would allow some invalid signed attributes to
1780 appear to verify correctly. (CVE-2009-0591)
1781 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1783 *) Reject UniversalString and BMPString types with invalid lengths. This
1784 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1785 a legal length. (CVE-2009-0590)
1788 *) Set S/MIME signing as the default purpose rather than setting it
1789 unconditionally. This allows applications to override it at the store
1793 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1794 to handle some structures.
1797 *) Improve efficiency of mem_gets: don't search whole buffer each time
1799 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1801 *) New -hex option for openssl rand.
1804 *) Print out UTF8String and NumericString when parsing ASN1.
1807 *) Support NumericString type for name components.
1810 *) Allow CC in the environment to override the automatically chosen
1811 compiler. Note that nothing is done to ensure flags work with the
1815 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1817 *) Properly check EVP_VerifyFinal() and similar return values
1819 [Ben Laurie, Bodo Moeller, Google Security Team]
1821 *) Enable TLS extensions by default.
1824 *) Allow the CHIL engine to be loaded, whether the application is
1825 multithreaded or not. (This does not release the developer from the
1826 obligation to set up the dynamic locking callbacks.)
1827 [Sander Temme <sander@temme.net>]
1829 *) Use correct exit code if there is an error in dgst command.
1830 [Steve Henson; problem pointed out by Roland Dirlewanger]
1832 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1833 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1836 *) Add experimental JPAKE support, including demo authentication in
1837 s_client and s_server.
1840 *) Set the comparison function in v3_addr_canonize().
1841 [Rob Austein <sra@hactrn.net>]
1843 *) Add support for XMPP STARTTLS in s_client.
1844 [Philip Paeps <philip@freebsd.org>]
1846 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1847 to ensure that even with this option, only ciphersuites in the
1848 server's preference list will be accepted. (Note that the option
1849 applies only when resuming a session, so the earlier behavior was
1850 just about the algorithm choice for symmetric cryptography.)
1853 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1855 *) Fix NULL pointer dereference if a DTLS server received
1856 ChangeCipherSpec as first record (CVE-2009-1386).
1859 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1860 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1863 *) The fix in 0.9.8c that supposedly got rid of unsafe
1864 double-checked locking was incomplete for RSA blinding,
1865 addressing just one layer of what turns out to have been
1866 doubly unsafe triple-checked locking.
1868 So now fix this for real by retiring the MONT_HELPER macro
1869 in crypto/rsa/rsa_eay.c.
1871 [Bodo Moeller; problem pointed out by Marius Schilder]
1873 *) Various precautionary measures:
1875 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1877 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1878 (NB: This would require knowledge of the secret session ticket key
1879 to exploit, in which case you'd be SOL either way.)
1881 - Change bn_nist.c so that it will properly handle input BIGNUMs
1882 outside the expected range.
1884 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1887 [Neel Mehta, Bodo Moeller]
1889 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1890 the load fails. Useful for distros.
1891 [Ben Laurie and the FreeBSD team]
1893 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1896 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1899 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1901 This work was sponsored by Logica.
1904 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1905 keystores. Support for SSL/TLS client authentication too.
1906 Not compiled unless enable-capieng specified to Configure.
1908 This work was sponsored by Logica.
1911 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1912 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1913 attribute creation routines such as certifcate requests and PKCS#12
1917 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1919 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1920 handshake which could lead to a cilent crash as found using the
1921 Codenomicon TLS test suite (CVE-2008-1672)
1922 [Steve Henson, Mark Cox]
1924 *) Fix double free in TLS server name extensions which could lead to
1925 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1928 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1930 Clear the error queue to ensure that error entries left from
1931 older function calls do not interfere with the correct operation.
1932 [Lutz Jaenicke, Erik de Castro Lopo]
1934 *) Remove root CA certificates of commercial CAs:
1936 The OpenSSL project does not recommend any specific CA and does not
1937 have any policy with respect to including or excluding any CA.
1938 Therefore it does not make any sense to ship an arbitrary selection
1939 of root CA certificates with the OpenSSL software.
1942 *) RSA OAEP patches to fix two separate invalid memory reads.
1943 The first one involves inputs when 'lzero' is greater than
1944 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1945 before the beginning of from). The second one involves inputs where
1946 the 'db' section contains nothing but zeroes (there is a one-byte
1947 invalid read after the end of 'db').
1948 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1950 *) Partial backport from 0.9.9-dev:
1952 Introduce bn_mul_mont (dedicated Montgomery multiplication
1953 procedure) as a candidate for BIGNUM assembler implementation.
1954 While 0.9.9-dev uses assembler for various architectures, only
1955 x86_64 is available by default here in the 0.9.8 branch, and
1956 32-bit x86 is available through a compile-time setting.
1958 To try the 32-bit x86 assembler implementation, use Configure
1959 option "enable-montasm" (which exists only for this backport).
1961 As "enable-montasm" for 32-bit x86 disclaims code stability
1962 anyway, in this constellation we activate additional code
1963 backported from 0.9.9-dev for further performance improvements,
1964 namely BN_from_montgomery_word. (To enable this otherwise,
1965 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1967 [Andy Polyakov (backport partially by Bodo Moeller)]
1969 *) Add TLS session ticket callback. This allows an application to set
1970 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1971 values. This is useful for key rollover for example where several key
1972 sets may exist with different names.
1975 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1976 This was broken until now in 0.9.8 releases, such that the only way
1977 a registered ENGINE could be used (assuming it initialises
1978 successfully on the host) was to explicitly set it as the default
1979 for the relevant algorithms. This is in contradiction with 0.9.7
1980 behaviour and the documentation. With this fix, when an ENGINE is
1981 registered into a given algorithm's table of implementations, the
1982 'uptodate' flag is reset so that auto-discovery will be used next
1983 time a new context for that algorithm attempts to select an
1985 [Ian Lister (tweaked by Geoff Thorpe)]
1987 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1988 implemention in the following ways:
1990 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1993 Lack of BER streaming support means one pass streaming processing is
1994 only supported if data is detached: setting the streaming flag is
1995 ignored for embedded content.
1997 CMS support is disabled by default and must be explicitly enabled
1998 with the enable-cms configuration option.
2001 *) Update the GMP engine glue to do direct copies between BIGNUM and
2002 mpz_t when openssl and GMP use the same limb size. Otherwise the
2003 existing "conversion via a text string export" trick is still used.
2004 [Paul Sheer <paulsheer@gmail.com>]
2006 *) Zlib compression BIO. This is a filter BIO which compressed and
2007 uncompresses any data passed through it.
2010 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2011 RFC3394 compatible AES key wrapping.
2014 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2015 sets string data without copying. X509_ALGOR_set0() and
2016 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2017 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2018 from an X509_ATTRIBUTE structure optionally checking it occurs only
2019 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2023 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2024 to get the expected BN_FLG_CONSTTIME behavior.
2025 [Bodo Moeller (Google)]
2029 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2030 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2031 - added some more tests to do_tests.pl
2032 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2033 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2034 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2035 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2036 - various changes to netware.pl to enable gcc-cross builds on Win32
2038 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2039 - various changes to fix missing prototype warnings
2040 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2041 - added AES, WHIRLPOOL and CPUID assembler code to build files
2042 - added missing AES assembler make rules to mk1mf.pl
2043 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2044 [Guenter Knauf <eflash@gmx.net>]
2046 *) Implement certificate status request TLS extension defined in RFC3546.
2047 A client can set the appropriate parameters and receive the encoded
2048 OCSP response via a callback. A server can query the supplied parameters
2049 and set the encoded OCSP response in the callback. Add simplified examples
2050 to s_client and s_server.
2053 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2055 *) Fix various bugs:
2056 + Binary incompatibility of ssl_ctx_st structure
2057 + DTLS interoperation with non-compliant servers
2058 + Don't call get_session_cb() without proposed session
2059 + Fix ia64 assembler code
2060 [Andy Polyakov, Steve Henson]
2062 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2064 *) DTLS Handshake overhaul. There were longstanding issues with
2065 OpenSSL DTLS implementation, which were making it impossible for
2066 RFC 4347 compliant client to communicate with OpenSSL server.
2067 Unfortunately just fixing these incompatibilities would "cut off"
2068 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2069 server keeps tolerating non RFC compliant syntax. The opposite is
2070 not true, 0.9.8f client can not communicate with earlier server.
2071 This update even addresses CVE-2007-4995.
2074 *) Changes to avoid need for function casts in OpenSSL: some compilers
2075 (gcc 4.2 and later) reject their use.
2076 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2079 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2080 RFC4507bis. The encrypted ticket format is an encrypted encoded
2081 SSL_SESSION structure, that way new session features are automatically
2084 If a client application caches session in an SSL_SESSION structure
2085 support is transparent because tickets are now stored in the encoded
2088 The SSL_CTX structure automatically generates keys for ticket
2089 protection in servers so again support should be possible
2090 with no application modification.
2092 If a client or server wishes to disable RFC4507 support then the option
2093 SSL_OP_NO_TICKET can be set.
2095 Add a TLS extension debugging callback to allow the contents of any client
2096 or server extensions to be examined.
2098 This work was sponsored by Google.
2101 *) Add initial support for TLS extensions, specifically for the server_name
2102 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2103 have new members for a host name. The SSL data structure has an
2104 additional member SSL_CTX *initial_ctx so that new sessions can be
2105 stored in that context to allow for session resumption, even after the
2106 SSL has been switched to a new SSL_CTX in reaction to a client's
2107 server_name extension.
2109 New functions (subject to change):
2111 SSL_get_servername()
2112 SSL_get_servername_type()
2115 New CTRL codes and macros (subject to change):
2117 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2118 - SSL_CTX_set_tlsext_servername_callback()
2119 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2120 - SSL_CTX_set_tlsext_servername_arg()
2121 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2123 openssl s_client has a new '-servername ...' option.
2125 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2126 '-key2 ...', '-servername_fatal' (subject to change). This allows
2127 testing the HostName extension for a specific single host name ('-cert'
2128 and '-key' remain fallbacks for handshakes without HostName
2129 negotiation). If the unrecogninzed_name alert has to be sent, this by
2130 default is a warning; it becomes fatal with the '-servername_fatal'
2133 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2135 *) Add AES and SSE2 assembly language support to VC++ build.
2138 *) Mitigate attack on final subtraction in Montgomery reduction.
2141 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2142 (which previously caused an internal error).
2145 *) Squeeze another 10% out of IGE mode when in != out.
2148 *) AES IGE mode speedup.
2149 [Dean Gaudet (Google)]
2151 *) Add the Korean symmetric 128-bit cipher SEED (see
2152 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2153 add SEED ciphersuites from RFC 4162:
2155 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2156 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2157 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2158 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2160 To minimize changes between patchlevels in the OpenSSL 0.9.8
2161 series, SEED remains excluded from compilation unless OpenSSL
2162 is configured with 'enable-seed'.
2163 [KISA, Bodo Moeller]
2165 *) Mitigate branch prediction attacks, which can be practical if a
2166 single processor is shared, allowing a spy process to extract
2167 information. For detailed background information, see
2168 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2169 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2170 and Necessary Software Countermeasures"). The core of the change
2171 are new versions BN_div_no_branch() and
2172 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2173 respectively, which are slower, but avoid the security-relevant
2174 conditional branches. These are automatically called by BN_div()
2175 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2176 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2177 remove a conditional branch.
2179 BN_FLG_CONSTTIME is the new name for the previous
2180 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2181 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2182 in the exponent causes BN_mod_exp_mont() to use the alternative
2183 implementation in BN_mod_exp_mont_consttime().) The old name
2184 remains as a deprecated alias.
2186 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2187 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2188 constant-time implementations for more than just exponentiation.
2189 Here too the old name is kept as a deprecated alias.
2191 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2192 the BN_BLINDING structure gets an independent copy of the
2193 modulus. This means that the previous "BIGNUM *m" argument to
2194 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2195 essentially becomes "const BIGNUM *m", although we can't actually
2196 change this in the header file before 0.9.9. It allows
2197 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2198 enable BN_FLG_CONSTTIME.
2200 [Matthew D Wood (Intel Corp)]
2202 *) In the SSL/TLS server implementation, be strict about session ID
2203 context matching (which matters if an application uses a single
2204 external cache for different purposes). Previously,
2205 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2206 set. This did ensure strict client verification, but meant that,
2207 with applications using a single external cache for quite
2208 different requirements, clients could circumvent ciphersuite
2209 restrictions for a given session ID context by starting a session
2210 in a different context.
2213 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2214 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2215 authentication-only ciphersuites.
2218 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2219 not complete and could lead to a possible single byte overflow
2220 (CVE-2007-5135) [Ben Laurie]
2222 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2224 *) Since AES128 and AES256 (and similarly Camellia128 and
2225 Camellia256) share a single mask bit in the logic of
2226 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2227 kludge to work properly if AES128 is available and AES256 isn't
2228 (or if Camellia128 is available and Camellia256 isn't).
2231 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2232 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2233 When a point or a seed is encoded in a BIT STRING, we need to
2234 prevent the removal of trailing zero bits to get the proper DER
2235 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2236 of a NamedBitList, for which trailing 0 bits need to be removed.)
2239 *) Have SSL/TLS server implementation tolerate "mismatched" record
2240 protocol version while receiving ClientHello even if the
2241 ClientHello is fragmented. (The server can't insist on the
2242 particular protocol version it has chosen before the ServerHello
2243 message has informed the client about his choice.)
2246 *) Add RFC 3779 support.
2247 [Rob Austein for ARIN, Ben Laurie]
2249 *) Load error codes if they are not already present instead of using a
2250 static variable. This allows them to be cleanly unloaded and reloaded.
2251 Improve header file function name parsing.
2254 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2255 or CAPABILITY handshake as required by RFCs.
2258 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2260 *) Introduce limits to prevent malicious keys being able to
2261 cause a denial of service. (CVE-2006-2940)
2262 [Steve Henson, Bodo Moeller]
2264 *) Fix ASN.1 parsing of certain invalid structures that can result
2265 in a denial of service. (CVE-2006-2937) [Steve Henson]
2267 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2268 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2270 *) Fix SSL client code which could crash if connecting to a
2271 malicious SSLv2 server. (CVE-2006-4343)
2272 [Tavis Ormandy and Will Drewry, Google Security Team]
2274 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2275 match only those. Before that, "AES256-SHA" would be interpreted
2276 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2277 the same strength classification in 0.9.7h) as we currently only
2278 have a single AES bit in the ciphersuite description bitmap.
2279 That change, however, also applied to ciphersuite strings such as
2280 "RC4-MD5" that intentionally matched multiple ciphersuites --
2281 namely, SSL 2.0 ciphersuites in addition to the more common ones
2282 from SSL 3.0/TLS 1.0.
2284 So we change the selection algorithm again: Naming an explicit
2285 ciphersuite selects this one ciphersuite, and any other similar
2286 ciphersuite (same bitmap) from *other* protocol versions.
2287 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2288 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2290 Since SSL 2.0 does not have any ciphersuites for which the
2291 128/256 bit distinction would be relevant, this works for now.
2292 The proper fix will be to use different bits for AES128 and
2293 AES256, which would have avoided the problems from the beginning;
2294 however, bits are scarce, so we can only do this in a new release
2295 (not just a patchlevel) when we can change the SSL_CIPHER
2296 definition to split the single 'unsigned long mask' bitmap into
2297 multiple values to extend the available space.
2301 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2303 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2304 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2306 *) Add AES IGE and biIGE modes.
2309 *) Change the Unix randomness entropy gathering to use poll() when
2310 possible instead of select(), since the latter has some
2311 undesirable limitations.
2312 [Darryl Miles via Richard Levitte and Bodo Moeller]
2314 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2315 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2316 cannot be implicitly activated as part of, e.g., the "AES" alias.
2317 However, please upgrade to OpenSSL 0.9.9[-dev] for
2318 non-experimental use of the ECC ciphersuites to get TLS extension
2319 support, which is required for curve and point format negotiation
2320 to avoid potential handshake problems.
2323 *) Disable rogue ciphersuites:
2325 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2326 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2327 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2329 The latter two were purportedly from
2330 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2333 Also deactivate the remaining ciphersuites from
2334 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2335 unofficial, and the ID has long expired.
2338 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2339 dual-core machines) and other potential thread-safety issues.
2342 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2343 versions), which is now available for royalty-free use
2344 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2345 Also, add Camellia TLS ciphersuites from RFC 4132.
2347 To minimize changes between patchlevels in the OpenSSL 0.9.8
2348 series, Camellia remains excluded from compilation unless OpenSSL
2349 is configured with 'enable-camellia'.
2352 *) Disable the padding bug check when compression is in use. The padding
2353 bug check assumes the first packet is of even length, this is not
2354 necessarily true if compresssion is enabled and can result in false
2355 positives causing handshake failure. The actual bug test is ancient
2356 code so it is hoped that implementations will either have fixed it by
2357 now or any which still have the bug do not support compression.
2360 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2362 *) When applying a cipher rule check to see if string match is an explicit
2363 cipher suite and only match that one cipher suite if it is.
2366 *) Link in manifests for VC++ if needed.
2367 [Austin Ziegler <halostatue@gmail.com>]
2369 *) Update support for ECC-based TLS ciphersuites according to
2370 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2371 TLS extensions, which are supported starting with the 0.9.9
2372 branch, not in the OpenSSL 0.9.8 branch).
2375 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2376 opaque EVP_CIPHER_CTX handling.
2379 *) Fixes and enhancements to zlib compression code. We now only use
2380 "zlib1.dll" and use the default __cdecl calling convention on Win32
2381 to conform with the standards mentioned here:
2382 http://www.zlib.net/DLL_FAQ.txt
2383 Static zlib linking now works on Windows and the new --with-zlib-include
2384 --with-zlib-lib options to Configure can be used to supply the location
2385 of the headers and library. Gracefully handle case where zlib library
2389 *) Several fixes and enhancements to the OID generation code. The old code
2390 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2391 handle numbers larger than ULONG_MAX, truncated printing and had a
2392 non standard OBJ_obj2txt() behaviour.
2395 *) Add support for building of engines under engine/ as shared libraries
2396 under VC++ build system.
2399 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2400 Hopefully, we will not see any false combination of paths any more.
2403 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2405 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2406 (part of SSL_OP_ALL). This option used to disable the
2407 countermeasure against man-in-the-middle protocol-version
2408 rollback in the SSL 2.0 server implementation, which is a bad
2409 idea. (CVE-2005-2969)
2411 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2412 for Information Security, National Institute of Advanced Industrial
2413 Science and Technology [AIST], Japan)]
2415 *) Add two function to clear and return the verify parameter flags.
2418 *) Keep cipherlists sorted in the source instead of sorting them at
2419 runtime, thus removing the need for a lock.
2422 *) Avoid some small subgroup attacks in Diffie-Hellman.
2423 [Nick Mathewson and Ben Laurie]
2425 *) Add functions for well-known primes.
2428 *) Extended Windows CE support.
2429 [Satoshi Nakamura and Andy Polyakov]
2431 *) Initialize SSL_METHOD structures at compile time instead of during
2432 runtime, thus removing the need for a lock.
2435 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2436 attempting to decrypt each encrypted key in turn. Add support to
2440 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2442 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2445 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2448 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2449 key into the same file any more.
2452 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2455 *) Add -utf8 command line and config file option to 'ca'.
2456 [Stefan <stf@udoma.org]
2458 *) Removed the macro des_crypt(), as it seems to conflict with some
2459 libraries. Use DES_crypt().
2462 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2463 involves renaming the source and generated shared-libs for
2464 both. The engines will accept the corrected or legacy ids
2465 ('ncipher' and '4758_cca' respectively) when binding. NB,
2466 this only applies when building 'shared'.
2467 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2469 *) Add attribute functions to EVP_PKEY structure. Modify
2470 PKCS12_create() to recognize a CSP name attribute and
2471 use it. Make -CSP option work again in pkcs12 utility.
2474 *) Add new functionality to the bn blinding code:
2475 - automatic re-creation of the BN_BLINDING parameters after
2476 a fixed number of uses (currently 32)
2477 - add new function for parameter creation
2478 - introduce flags to control the update behaviour of the
2479 BN_BLINDING parameters
2480 - hide BN_BLINDING structure
2481 Add a second BN_BLINDING slot to the RSA structure to improve
2482 performance when a single RSA object is shared among several
2486 *) Add support for DTLS.
2487 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2489 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2490 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2493 *) Remove buggy and incompletet DH cert support from
2494 ssl/ssl_rsa.c and ssl/s3_both.c
2497 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2498 the apps/openssl applications.
2501 *) Compile clean with "-Wall -Wmissing-prototypes
2502 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2503 DEBUG_SAFESTACK must also be set.
2506 *) Change ./Configure so that certain algorithms can be disabled by default.
2507 The new counterpiece to "no-xxx" is "enable-xxx".
2509 The patented RC5 and MDC2 algorithms will now be disabled unless
2510 "enable-rc5" and "enable-mdc2", respectively, are specified.
2512 (IDEA remains enabled despite being patented. This is because IDEA
2513 is frequently required for interoperability, and there is no license
2514 fee for non-commercial use. As before, "no-idea" can be used to
2515 avoid this algorithm.)
2519 *) Add processing of proxy certificates (see RFC 3820). This work was
2520 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2521 EGEE (Enabling Grids for E-science in Europe).
2524 *) RC4 performance overhaul on modern architectures/implementations, such
2525 as Intel P4, IA-64 and AMD64.
2528 *) New utility extract-section.pl. This can be used specify an alternative
2529 section number in a pod file instead of having to treat each file as
2530 a separate case in Makefile. This can be done by adding two lines to the
2533 =for comment openssl_section:XXX
2535 The blank line is mandatory.
2539 *) New arguments -certform, -keyform and -pass for s_client and s_server
2540 to allow alternative format key and certificate files and passphrase
2544 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2545 update associated structures and add various utility functions.
2547 Add new policy related verify parameters, include policy checking in
2548 standard verify code. Enhance 'smime' application with extra parameters
2549 to support policy checking and print out.
2552 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2553 Nehemiah processors. These extensions support AES encryption in hardware
2554 as well as RNG (though RNG support is currently disabled).
2555 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2557 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2560 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2561 [Andy Polyakov and a number of other people]
2563 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2564 implementation contributed by IBM.
2565 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2567 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2568 exponent rather than 'unsigned long'. There is a corresponding change to
2569 the new 'rsa_keygen' element of the RSA_METHOD structure.
2570 [Jelte Jansen, Geoff Thorpe]
2572 *) Functionality for creating the initial serial number file is now
2573 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2575 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2576 number file to 1, which is bound to cause problems. To avoid
2577 the problems while respecting compatibility between different 0.9.7
2578 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2579 CA.pl for serial number initialization. With the new release 0.9.8,
2580 we can fix the problem directly in the 'ca' utility.)
2583 *) Reduced header interdepencies by declaring more opaque objects in
2584 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2585 give fewer recursive includes, which could break lazy source code - so
2586 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2587 developers should define this symbol when building and using openssl to
2588 ensure they track the recommended behaviour, interfaces, [etc], but
2589 backwards-compatible behaviour prevails when this isn't defined.
2592 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2595 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2596 This will generate a random key of the appropriate length based on the
2597 cipher context. The EVP_CIPHER can provide its own random key generation
2598 routine to support keys of a specific form. This is used in the des and
2599 3des routines to generate a key of the correct parity. Update S/MIME
2600 code to use new functions and hence generate correct parity DES keys.
2601 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2602 valid (weak or incorrect parity).
2605 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2606 as looking them up. This is useful when the verified structure may contain
2607 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2608 present unless the new PKCS7_NO_CRL flag is asserted.
2611 *) Extend ASN1 oid configuration module. It now additionally accepts the
2614 shortName = some long name, 1.2.3.4
2617 *) Reimplemented the BN_CTX implementation. There is now no more static
2618 limitation on the number of variables it can handle nor the depth of the
2619 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2620 information can now expand as required, and rather than having a single
2621 static array of bignums, BN_CTX now uses a linked-list of such arrays
2622 allowing it to expand on demand whilst maintaining the usefulness of
2623 BN_CTX's "bundling".
2626 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2627 to allow all RSA operations to function using a single BN_CTX.
2630 *) Preliminary support for certificate policy evaluation and checking. This
2631 is initially intended to pass the tests outlined in "Conformance Testing
2632 of Relying Party Client Certificate Path Processing Logic" v1.07.
2635 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2636 remained unused and not that useful. A variety of other little bignum
2637 tweaks and fixes have also been made continuing on from the audit (see
2641 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2642 associated ASN1, EVP and SSL functions and old ASN1 macros.
2645 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2646 and this should never fail. So the return value from the use of
2647 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2648 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2651 *) BN_CTX_get() should return zero-valued bignums, providing the same
2652 initialised value as BN_new().
2653 [Geoff Thorpe, suggested by Ulf Möller]
2655 *) Support for inhibitAnyPolicy certificate extension.
2658 *) An audit of the BIGNUM code is underway, for which debugging code is
2659 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2660 is considered valid when processing BIGNUMs, and causes execution to
2661 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2662 further steps are taken to deliberately pollute unused data in BIGNUM
2663 structures to try and expose faulty code further on. For now, openssl will
2664 (in its default mode of operation) continue to tolerate the inconsistent
2665 forms that it has tolerated in the past, but authors and packagers should
2666 consider trying openssl and their own applications when compiled with
2667 these debugging symbols defined. It will help highlight potential bugs in
2668 their own code, and will improve the test coverage for OpenSSL itself. At
2669 some point, these tighter rules will become openssl's default to improve
2670 maintainability, though the assert()s and other overheads will remain only
2671 in debugging configurations. See bn.h for more details.
2672 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2674 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2675 that can only be obtained through BN_CTX_new() (which implicitly
2676 initialises it). The presence of this function only made it possible
2677 to overwrite an existing structure (and cause memory leaks).
2680 *) Because of the callback-based approach for implementing LHASH as a
2681 template type, lh_insert() adds opaque objects to hash-tables and
2682 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2683 to clean up those corresponding objects before destroying the hash table
2684 (and losing the object pointers). So some over-zealous constifications in
2685 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2686 objects as "const" and the lh_doall[_arg] callback wrappers are not
2687 prototyped to have "const" restrictions on the object pointers they are
2688 given (and so aren't required to cast them away any more).
2691 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2692 (speed) prefers to use its own implementation. The two implementations
2693 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2694 its object type properly exposed (MS_TM) instead of casting to/from "char
2695 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2696 aren't necessarily the greatest nomenclatures - but this is what was used
2697 internally to the implementation so I've used that for now.
2700 *) Ensure that deprecated functions do not get compiled when
2701 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2702 the self-tests were still using deprecated key-generation functions so
2703 these have been updated also.
2706 *) Reorganise PKCS#7 code to separate the digest location functionality
2707 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2708 New function PKCS7_set_digest() to set the digest type for PKCS#7
2709 digestedData type. Add additional code to correctly generate the
2710 digestedData type and add support for this type in PKCS7 initialization
2714 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2715 structure of type "other".
2718 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2719 sure the loop does correctly stop and breaking ("division by zero")
2720 modulus operations are not performed. The (pre-generated) prime
2721 table crypto/bn/bn_prime.h was already correct, but it could not be
2722 re-generated on some platforms because of the "division by zero"
2723 situation in the script.
2724 [Ralf S. Engelschall]
2726 *) Update support for ECC-based TLS ciphersuites according to
2727 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2728 SHA-1 now is only used for "small" curves (where the
2729 representation of a field element takes up to 24 bytes); for
2730 larger curves, the field element resulting from ECDH is directly
2731 used as premaster secret.
2732 [Douglas Stebila (Sun Microsystems Laboratories)]
2734 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2735 curve secp160r1 to the tests.
2736 [Douglas Stebila (Sun Microsystems Laboratories)]
2738 *) Add the possibility to load symbols globally with DSO.
2739 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2741 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2742 control of the error stack.
2745 *) Add support for STORE in ENGINE.
2748 *) Add the STORE type. The intention is to provide a common interface
2749 to certificate and key stores, be they simple file-based stores, or
2750 HSM-type store, or LDAP stores, or...
2751 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2754 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2755 pass a list of arguments to any function as well as provide a way
2756 for a function to pass data back to the caller.
2759 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2760 works like BUF_strdup() but can be used to duplicate a portion of
2761 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2765 *) Add the function sk_find_ex() which works like sk_find(), but will
2766 return an index to an element even if an exact match couldn't be
2767 found. The index is guaranteed to point at the element where the
2768 searched-for key would be inserted to preserve sorting order.
2771 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2772 takes an extra flags argument for optional functionality. Currently,
2773 the following flags are defined:
2775 OBJ_BSEARCH_VALUE_ON_NOMATCH
2776 This one gets OBJ_bsearch_ex() to return a pointer to the first
2777 element where the comparing function returns a negative or zero
2780 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2781 This one gets OBJ_bsearch_ex() to return a pointer to the first
2782 element where the comparing function returns zero. This is useful
2783 if there are more than one element where the comparing function
2787 *) Make it possible to create self-signed certificates with 'openssl ca'
2788 in such a way that the self-signed certificate becomes part of the
2789 CA database and uses the same mechanisms for serial number generation
2790 as all other certificate signing. The new flag '-selfsign' enables
2791 this functionality. Adapt CA.sh and CA.pl.in.
2794 *) Add functionality to check the public key of a certificate request
2795 against a given private. This is useful to check that a certificate
2796 request can be signed by that key (self-signing).
2799 *) Make it possible to have multiple active certificates with the same
2800 subject in the CA index file. This is done only if the keyword
2801 'unique_subject' is set to 'no' in the main CA section (default
2802 if 'CA_default') of the configuration file. The value is saved
2803 with the database itself in a separate index attribute file,
2804 named like the index file with '.attr' appended to the name.
2807 *) Generate muti valued AVAs using '+' notation in config files for
2811 *) Support for nameConstraints certificate extension.
2814 *) Support for policyConstraints certificate extension.
2817 *) Support for policyMappings certificate extension.
2820 *) Make sure the default DSA_METHOD implementation only uses its
2821 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2822 and change its own handlers to be NULL so as to remove unnecessary
2823 indirection. This lets alternative implementations fallback to the
2824 default implementation more easily.
2827 *) Support for directoryName in GeneralName related extensions
2831 *) Make it possible to link applications using Makefile.shared.
2832 Make that possible even when linking against static libraries!
2835 *) Support for single pass processing for S/MIME signing. This now
2836 means that S/MIME signing can be done from a pipe, in addition
2837 cleartext signing (multipart/signed type) is effectively streaming
2838 and the signed data does not need to be all held in memory.
2840 This is done with a new flag PKCS7_STREAM. When this flag is set
2841 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2842 is done after the data is output (and digests calculated) in
2843 SMIME_write_PKCS7().
2846 *) Add full support for -rpath/-R, both in shared libraries and
2847 applications, at least on the platforms where it's known how
2851 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2852 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2853 will now compute a table of multiples of the generator that
2854 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2855 faster (notably in the case of a single point multiplication,
2856 scalar * generator).
2857 [Nils Larsch, Bodo Moeller]
2859 *) IPv6 support for certificate extensions. The various extensions
2860 which use the IP:a.b.c.d can now take IPv6 addresses using the
2861 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2865 *) Added an ENGINE that implements RSA by performing private key
2866 exponentiations with the GMP library. The conversions to and from
2867 GMP's mpz_t format aren't optimised nor are any montgomery forms
2868 cached, and on x86 it appears OpenSSL's own performance has caught up.
2869 However there are likely to be other architectures where GMP could
2870 provide a boost. This ENGINE is not built in by default, but it can be
2871 specified at Configure time and should be accompanied by the necessary
2872 linker additions, eg;
2873 ./config -DOPENSSL_USE_GMP -lgmp
2876 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2877 testing availability of engines with "-t" - the old behaviour is
2878 produced by increasing the feature's verbosity with "-tt".
2881 *) ECDSA routines: under certain error conditions uninitialized BN objects
2882 could be freed. Solution: make sure initialization is performed early
2883 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2887 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2888 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2889 software implementations. For DSA and DH, parameter generation can
2890 also be overriden by providing the appropriate method callbacks.
2893 *) Change the "progress" mechanism used in key-generation and
2894 primality testing to functions that take a new BN_GENCB pointer in
2895 place of callback/argument pairs. The new API functions have "_ex"
2896 postfixes and the older functions are reimplemented as wrappers for
2897 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2898 declarations of the old functions to help (graceful) attempts to
2899 migrate to the new functions. Also, the new key-generation API
2900 functions operate on a caller-supplied key-structure and return
2901 success/failure rather than returning a key or NULL - this is to
2902 help make "keygen" another member function of RSA_METHOD etc.
2904 Example for using the new callback interface:
2906 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2910 BN_GENCB_set(&my_cb, my_callback, my_arg);
2912 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2913 /* For the meaning of a, b in calls to my_callback(), see the
2914 * documentation of the function that calls the callback.
2915 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2916 * my_callback should return 1 if it wants BN_is_prime_ex()
2917 * to continue, or 0 to stop.
2922 *) Change the ZLIB compression method to be stateful, and make it
2923 available to TLS with the number defined in
2924 draft-ietf-tls-compression-04.txt.
2927 *) Add the ASN.1 structures and functions for CertificatePair, which
2928 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2930 CertificatePair ::= SEQUENCE {
2931 forward [0] Certificate OPTIONAL,
2932 reverse [1] Certificate OPTIONAL,
2933 -- at least one of the pair shall be present -- }
2935 Also implement the PEM functions to read and write certificate
2936 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2938 This needed to be defined, mostly for the sake of the LDAP
2939 attribute crossCertificatePair, but may prove useful elsewhere as
2943 *) Make it possible to inhibit symlinking of shared libraries in
2944 Makefile.shared, for Cygwin's sake.
2947 *) Extend the BIGNUM API by creating a function
2948 void BN_set_negative(BIGNUM *a, int neg);
2949 and a macro that behave like
2950 int BN_is_negative(const BIGNUM *a);
2952 to avoid the need to access 'a->neg' directly in applications.
2955 *) Implement fast modular reduction for pseudo-Mersenne primes
2956 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2957 EC_GROUP_new_curve_GFp() will now automatically use this
2959 [Nils Larsch <nla@trustcenter.de>]
2961 *) Add new lock type (CRYPTO_LOCK_BN).
2964 *) Change the ENGINE framework to automatically load engines
2965 dynamically from specific directories unless they could be
2966 found to already be built in or loaded. Move all the
2967 current engines except for the cryptodev one to a new
2969 The engines in engines/ are built as shared libraries if
2970 the "shared" options was given to ./Configure or ./config.
2971 Otherwise, they are inserted in libcrypto.a.
2972 /usr/local/ssl/engines is the default directory for dynamic
2973 engines, but that can be overriden at configure time through
2974 the usual use of --prefix and/or --openssldir, and at run
2975 time with the environment variable OPENSSL_ENGINES.
2976 [Geoff Thorpe and Richard Levitte]
2978 *) Add Makefile.shared, a helper makefile to build shared
2979 libraries. Addapt Makefile.org.
2982 *) Add version info to Win32 DLLs.
2983 [Peter 'Luna' Runestig" <peter@runestig.com>]
2985 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2986 can be added using this API to created arbitrary PKCS#12
2987 files while avoiding the low level API.
2989 New options to PKCS12_create(), key or cert can be NULL and
2990 will then be omitted from the output file. The encryption
2991 algorithm NIDs can be set to -1 for no encryption, the mac
2992 iteration count can be set to 0 to omit the mac.
2994 Enhance pkcs12 utility by making the -nokeys and -nocerts
2995 options work when creating a PKCS#12 file. New option -nomac
2996 to omit the mac, NONE can be set for an encryption algorithm.
2997 New code is modified to use the enhanced PKCS12_create()
2998 instead of the low level API.
3001 *) Extend ASN1 encoder to support indefinite length constructed
3002 encoding. This can output sequences tags and octet strings in
3003 this form. Modify pk7_asn1.c to support indefinite length
3004 encoding. This is experimental and needs additional code to
3005 be useful, such as an ASN1 bio and some enhanced streaming
3008 Extend template encode functionality so that tagging is passed
3009 down to the template encoder.
3012 *) Let 'openssl req' fail if an argument to '-newkey' is not
3013 recognized instead of using RSA as a default.
3016 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3017 As these are not official, they are not included in "ALL";
3018 the "ECCdraft" ciphersuite group alias can be used to select them.
3019 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3021 *) Add ECDH engine support.
3022 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3024 *) Add ECDH in new directory crypto/ecdh/.
3025 [Douglas Stebila (Sun Microsystems Laboratories)]
3027 *) Let BN_rand_range() abort with an error after 100 iterations
3028 without success (which indicates a broken PRNG).
3031 *) Change BN_mod_sqrt() so that it verifies that the input value
3032 is really the square of the return value. (Previously,
3033 BN_mod_sqrt would show GIGO behaviour.)
3036 *) Add named elliptic curves over binary fields from X9.62, SECG,
3037 and WAP/WTLS; add OIDs that were still missing.
3039 [Sheueling Chang Shantz and Douglas Stebila
3040 (Sun Microsystems Laboratories)]
3042 *) Extend the EC library for elliptic curves over binary fields
3043 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3046 EC_GF2m_simple_method
3050 EC_GROUP_new_curve_GF2m
3051 EC_GROUP_set_curve_GF2m
3052 EC_GROUP_get_curve_GF2m
3053 EC_POINT_set_affine_coordinates_GF2m
3054 EC_POINT_get_affine_coordinates_GF2m
3055 EC_POINT_set_compressed_coordinates_GF2m
3057 Point compression for binary fields is disabled by default for
3058 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3061 As binary polynomials are represented as BIGNUMs, various members
3062 of the EC_GROUP and EC_POINT data structures can be shared
3063 between the implementations for prime fields and binary fields;
3064 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3065 are essentially identical to their ..._GFp counterparts.
3066 (For simplicity, the '..._GFp' prefix has been dropped from
3067 various internal method names.)
3069 An internal 'field_div' method (similar to 'field_mul' and
3070 'field_sqr') has been added; this is used only for binary fields.
3072 [Sheueling Chang Shantz and Douglas Stebila
3073 (Sun Microsystems Laboratories)]
3075 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3076 through methods ('mul', 'precompute_mult').
3078 The generic implementations (now internally called 'ec_wNAF_mul'
3079 and 'ec_wNAF_precomputed_mult') remain the default if these
3080 methods are undefined.
3082 [Sheueling Chang Shantz and Douglas Stebila
3083 (Sun Microsystems Laboratories)]
3085 *) New function EC_GROUP_get_degree, which is defined through
3086 EC_METHOD. For curves over prime fields, this returns the bit
3087 length of the modulus.
3089 [Sheueling Chang Shantz and Douglas Stebila
3090 (Sun Microsystems Laboratories)]
3092 *) New functions EC_GROUP_dup, EC_POINT_dup.
3093 (These simply call ..._new and ..._copy).
3095 [Sheueling Chang Shantz and Douglas Stebila
3096 (Sun Microsystems Laboratories)]
3098 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3099 Polynomials are represented as BIGNUMs (where the sign bit is not
3100 used) in the following functions [macros]:
3103 BN_GF2m_sub [= BN_GF2m_add]
3104 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3105 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3106 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3108 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3109 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3110 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3111 BN_GF2m_cmp [= BN_ucmp]
3113 (Note that only the 'mod' functions are actually for fields GF(2^m).
3114 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3116 For some functions, an the irreducible polynomial defining a
3117 field can be given as an 'unsigned int[]' with strictly
3118 decreasing elements giving the indices of those bits that are set;
3119 i.e., p[] represents the polynomial
3120 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3122 p[0] > p[1] > ... > p[k] = 0.
3123 This applies to the following functions:
3128 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3129 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3131 BN_GF2m_mod_sqrt_arr
3132 BN_GF2m_mod_solve_quad_arr
3136 Conversion can be performed by the following functions:
3141 bntest.c has additional tests for binary polynomial arithmetic.
3143 Two implementations for BN_GF2m_mod_div() are available.
3144 The default algorithm simply uses BN_GF2m_mod_inv() and
3145 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3146 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3147 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3149 [Sheueling Chang Shantz and Douglas Stebila
3150 (Sun Microsystems Laboratories)]
3152 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3153 functionality is disabled at compile-time.
3154 [Douglas Stebila <douglas.stebila@sun.com>]
3156 *) Change default behaviour of 'openssl asn1parse' so that more
3157 information is visible when viewing, e.g., a certificate:
3159 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3160 mode the content of non-printable OCTET STRINGs is output in a
3161 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3162 avoid the appearance of a printable string.
3163 [Nils Larsch <nla@trustcenter.de>]
3165 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3167 EC_GROUP_set_asn1_flag()
3168 EC_GROUP_get_asn1_flag()
3169 EC_GROUP_set_point_conversion_form()
3170 EC_GROUP_get_point_conversion_form()
3171 These control ASN1 encoding details:
3172 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3173 has been set to OPENSSL_EC_NAMED_CURVE.
3174 - Points are encoded in uncompressed form by default; options for
3175 asn1_for are as for point2oct, namely
3176 POINT_CONVERSION_COMPRESSED
3177 POINT_CONVERSION_UNCOMPRESSED
3178 POINT_CONVERSION_HYBRID
3180 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3183 EC_GROUP_get0_seed()
3184 EC_GROUP_get_seed_len()
3185 This is used only for ASN1 purposes (so far).
3186 [Nils Larsch <nla@trustcenter.de>]
3188 *) Add 'field_type' member to EC_METHOD, which holds the NID
3189 of the appropriate field type OID. The new function
3190 EC_METHOD_get_field_type() returns this value.
3191 [Nils Larsch <nla@trustcenter.de>]
3196 EC_POINT_point2hex()
3197 EC_POINT_hex2point()
3198 providing useful interfaces to EC_POINT_point2oct() and
3199 EC_POINT_oct2point().
3200 [Nils Larsch <nla@trustcenter.de>]
3202 *) Change internals of the EC library so that the functions
3203 EC_GROUP_set_generator()
3204 EC_GROUP_get_generator()
3205 EC_GROUP_get_order()
3206 EC_GROUP_get_cofactor()
3207 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3208 to methods, which would lead to unnecessary code duplication when
3209 adding different types of curves.
3210 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3212 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3213 arithmetic, and such that modified wNAFs are generated
3214 (which avoid length expansion in many cases).
3217 *) Add a function EC_GROUP_check_discriminant() (defined via
3218 EC_METHOD) that verifies that the curve discriminant is non-zero.
3220 Add a function EC_GROUP_check() that makes some sanity tests
3221 on a EC_GROUP, its generator and order. This includes
3222 EC_GROUP_check_discriminant().
3223 [Nils Larsch <nla@trustcenter.de>]
3225 *) Add ECDSA in new directory crypto/ecdsa/.
3227 Add applications 'openssl ecparam' and 'openssl ecdsa'
3228 (these are based on 'openssl dsaparam' and 'openssl dsa').
3230 ECDSA support is also included in various other files across the
3231 library. Most notably,
3232 - 'openssl req' now has a '-newkey ecdsa:file' option;
3233 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3234 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3235 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3236 them suitable for ECDSA where domain parameters must be
3237 extracted before the specific public key;
3238 - ECDSA engine support has been added.
3239 [Nils Larsch <nla@trustcenter.de>]
3241 *) Include some named elliptic curves, and add OIDs from X9.62,
3242 SECG, and WAP/WTLS. Each curve can be obtained from the new
3244 EC_GROUP_new_by_curve_name(),
3245 and the list of available named curves can be obtained with
3246 EC_get_builtin_curves().
3247 Also add a 'curve_name' member to EC_GROUP objects, which can be
3249 EC_GROUP_set_curve_name()
3250 EC_GROUP_get_curve_name()
3251 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3253 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3254 was actually never needed) and in BN_mul(). The removal in BN_mul()
3255 required a small change in bn_mul_part_recursive() and the addition
3256 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3257 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3258 bn_sub_words() and bn_add_words() except they take arrays with
3262 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3264 *) Cleanse PEM buffers before freeing them since they may contain
3266 [Benjamin Bennett <ben@psc.edu>]
3268 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3269 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3270 authentication-only ciphersuites.
3273 *) Since AES128 and AES256 share a single mask bit in the logic of
3274 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3275 kludge to work properly if AES128 is available and AES256 isn't.
3278 *) Expand security boundary to match 1.1.1 module.
3281 *) Remove redundant features: hash file source, editing of test vectors
3282 modify fipsld to use external fips_premain.c signature.
3285 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3286 run algorithm test programs.
3289 *) Make algorithm test programs more tolerant of whitespace.
3292 *) Have SSL/TLS server implementation tolerate "mismatched" record
3293 protocol version while receiving ClientHello even if the
3294 ClientHello is fragmented. (The server can't insist on the
3295 particular protocol version it has chosen before the ServerHello
3296 message has informed the client about his choice.)
3299 *) Load error codes if they are not already present instead of using a
3300 static variable. This allows them to be cleanly unloaded and reloaded.
3303 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3305 *) Introduce limits to prevent malicious keys being able to
3306 cause a denial of service. (CVE-2006-2940)
3307 [Steve Henson, Bodo Moeller]
3309 *) Fix ASN.1 parsing of certain invalid structures that can result
3310 in a denial of service. (CVE-2006-2937) [Steve Henson]
3312 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3313 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3315 *) Fix SSL client code which could crash if connecting to a
3316 malicious SSLv2 server. (CVE-2006-4343)
3317 [Tavis Ormandy and Will Drewry, Google Security Team]
3319 *) Change ciphersuite string processing so that an explicit
3320 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3321 will no longer include "AES128-SHA"), and any other similar
3322 ciphersuite (same bitmap) from *other* protocol versions (so that
3323 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3324 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3325 changes from 0.9.8b and 0.9.8d.
3328 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3330 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3331 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3333 *) Change the Unix randomness entropy gathering to use poll() when
3334 possible instead of select(), since the latter has some
3335 undesirable limitations.
3336 [Darryl Miles via Richard Levitte and Bodo Moeller]
3338 *) Disable rogue ciphersuites:
3340 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3341 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3342 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3344 The latter two were purportedly from
3345 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3348 Also deactive the remaining ciphersuites from
3349 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3350 unofficial, and the ID has long expired.
3353 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3354 dual-core machines) and other potential thread-safety issues.
3357 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3359 *) Adapt fipsld and the build system to link against the validated FIPS
3360 module in FIPS mode.
3363 *) Fixes for VC++ 2005 build under Windows.
3366 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3367 from a Windows bash shell such as MSYS. It is autodetected from the
3368 "config" script when run from a VC++ environment. Modify standard VC++
3369 build to use fipscanister.o from the GNU make build.
3372 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3374 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3375 The value now differs depending on if you build for FIPS or not.
3376 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3377 safely run with a non-FIPSed libcrypto, as it may crash because of
3378 the difference induced by this change.
3381 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3383 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3384 (part of SSL_OP_ALL). This option used to disable the
3385 countermeasure against man-in-the-middle protocol-version
3386 rollback in the SSL 2.0 server implementation, which is a bad
3387 idea. (CVE-2005-2969)
3389 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3390 for Information Security, National Institute of Advanced Industrial
3391 Science and Technology [AIST], Japan)]
3393 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3394 mainly for FIPS compliance and not fully integrated at this stage.
3397 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3398 the exponentiation using a fixed-length exponent. (Otherwise,
3399 the information leaked through timing could expose the secret key
3400 after many signatures; cf. Bleichenbacher's attack on DSA with
3404 *) Make a new fixed-window mod_exp implementation the default for
3405 RSA, DSA, and DH private-key operations so that the sequence of
3406 squares and multiplies and the memory access pattern are
3407 independent of the particular secret key. This will mitigate
3408 cache-timing and potential related attacks.
3410 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3411 and this is automatically used by BN_mod_exp_mont() if the new flag
3412 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3413 will use this BN flag for private exponents unless the flag
3414 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3415 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3417 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3419 *) Change the client implementation for SSLv23_method() and
3420 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3421 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3422 (Previously, the SSL 2.0 backwards compatible Client Hello
3423 message format would be used even with SSL_OP_NO_SSLv2.)
3426 *) Add support for smime-type MIME parameter in S/MIME messages which some
3430 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3431 a threadsafe manner. Modify rsa code to use new function and add calls
3432 to dsa and dh code (which had race conditions before).
3435 *) Include the fixed error library code in the C error file definitions
3436 instead of fixing them up at runtime. This keeps the error code
3437 structures constant.
3440 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3442 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3445 *) Fixes for newer kerberos headers. NB: the casts are needed because
3446 the 'length' field is signed on one version and unsigned on another
3447 with no (?) obvious way to tell the difference, without these VC++
3448 complains. Also the "definition" of FAR (blank) is no longer included
3449 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3450 some needed definitions.
3453 *) Undo Cygwin change.
3456 *) Added support for proxy certificates according to RFC 3820.
3457 Because they may be a security thread to unaware applications,
3458 they must be explicitely allowed in run-time. See
3459 docs/HOWTO/proxy_certificates.txt for further information.
3462 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3464 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3465 server and client random values. Previously
3466 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3467 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3469 This change has negligible security impact because:
3471 1. Server and client random values still have 24 bytes of pseudo random
3474 2. Server and client random values are sent in the clear in the initial
3477 3. The master secret is derived using the premaster secret (48 bytes in
3478 size for static RSA ciphersuites) as well as client server and random
3481 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3484 [Stephen Henson, reported by UK NISCC]
3486 *) Use Windows randomness collection on Cygwin.
3489 *) Fix hang in EGD/PRNGD query when communication socket is closed
3490 prematurely by EGD/PRNGD.
3491 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3493 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3496 *) Back-port of selected performance improvements from development
3497 branch, as well as improved support for PowerPC platforms.
3500 *) Add lots of checks for memory allocation failure, error codes to indicate
3501 failure and freeing up memory if a failure occurs.
3502 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3504 *) Add new -passin argument to dgst.
3507 *) Perform some character comparisons of different types in X509_NAME_cmp:
3508 this is needed for some certificates that reencode DNs into UTF8Strings
3509 (in violation of RFC3280) and can't or wont issue name rollover
3513 *) Make an explicit check during certificate validation to see that
3514 the CA setting in each certificate on the chain is correct. As a
3515 side effect always do the following basic checks on extensions,
3516 not just when there's an associated purpose to the check:
3518 - if there is an unhandled critical extension (unless the user
3519 has chosen to ignore this fault)
3520 - if the path length has been exceeded (if one is set at all)
3521 - that certain extensions fit the associated purpose (if one has
3525 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3527 *) Avoid a race condition when CRLs are checked in a multi threaded
3528 environment. This would happen due to the reordering of the revoked
3529 entries during signature checking and serial number lookup. Now the
3530 encoding is cached and the serial number sort performed under a lock.
3531 Add new STACK function sk_is_sorted().
3534 *) Add Delta CRL to the extension code.
3537 *) Various fixes to s3_pkt.c so alerts are sent properly.
3538 [David Holmes <d.holmes@f5.com>]
3540 *) Reduce the chances of duplicate issuer name and serial numbers (in
3541 violation of RFC3280) using the OpenSSL certificate creation utilities.
3542 This is done by creating a random 64 bit value for the initial serial
3543 number when a serial number file is created or when a self signed
3544 certificate is created using 'openssl req -x509'. The initial serial
3545 number file is created using 'openssl x509 -next_serial' in CA.pl
3546 rather than being initialized to 1.
3549 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3551 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3552 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3553 [Joe Orton, Steve Henson]
3555 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3557 [Joe Orton, Steve Henson]
3559 *) Make it possible to have multiple active certificates with the same
3560 subject in the CA index file. This is done only if the keyword
3561 'unique_subject' is set to 'no' in the main CA section (default
3562 if 'CA_default') of the configuration file. The value is saved
3563 with the database itself in a separate index attribute file,
3564 named like the index file with '.attr' appended to the name.
3567 *) X509 verify fixes. Disable broken certificate workarounds when
3568 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3569 keyUsage extension present. Don't accept CRLs with unhandled critical
3570 extensions: since verify currently doesn't process CRL extensions this
3571 rejects a CRL with *any* critical extensions. Add new verify error codes
3575 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3576 A clarification of RFC2560 will require the use of OCTET STRINGs and
3577 some implementations cannot handle the current raw format. Since OpenSSL
3578 copies and compares OCSP nonces as opaque blobs without any attempt at
3579 parsing them this should not create any compatibility issues.
3582 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3583 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3584 this HMAC (and other) operations are several times slower than OpenSSL
3588 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3589 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3591 *) Use the correct content when signing type "other".
3594 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3596 *) Fix various bugs revealed by running the NISCC test suite:
3598 Stop out of bounds reads in the ASN1 code when presented with
3599 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3601 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3603 If verify callback ignores invalid public key errors don't try to check
3604 certificate signature with the NULL public key.
3608 *) New -ignore_err option in ocsp application to stop the server
3609 exiting on the first error in a request.
3612 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3613 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3617 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3618 extra data after the compression methods not only for TLS 1.0
3619 but also for SSL 3.0 (as required by the specification).
3620 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3622 *) Change X509_certificate_type() to mark the key as exported/exportable
3623 when it's 512 *bits* long, not 512 bytes.
3626 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3627 blocks during encryption.
3630 *) Various fixes to base64 BIO and non blocking I/O. On write
3631 flushes were not handled properly if the BIO retried. On read
3632 data was not being buffered properly and had various logic bugs.
3633 This also affects blocking I/O when the data being decoded is a
3637 *) Various S/MIME bugfixes and compatibility changes:
3638 output correct application/pkcs7 MIME type if
3639 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3640 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3641 of files as .eml work). Correctly handle very long lines in MIME
3645 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3647 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3648 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3649 a protocol version number mismatch like a decryption error
3650 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3653 *) Turn on RSA blinding by default in the default implementation
3654 to avoid a timing attack. Applications that don't want it can call
3655 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3656 They would be ill-advised to do so in most cases.
3657 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3659 *) Change RSA blinding code so that it works when the PRNG is not
3660 seeded (in this case, the secret RSA exponent is abused as
3661 an unpredictable seed -- if it is not unpredictable, there
3662 is no point in blinding anyway). Make RSA blinding thread-safe
3663 by remembering the creator's thread ID in rsa->blinding and
3664 having all other threads use local one-time blinding factors
3665 (this requires more computation than sharing rsa->blinding, but
3666 avoids excessive locking; and if an RSA object is not shared
3667 between threads, blinding will still be very fast).
3670 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3671 ENGINE as defaults for all supported algorithms irrespective of
3672 the 'flags' parameter. 'flags' is now honoured, so applications
3673 should make sure they are passing it correctly.
3676 *) Target "mingw" now allows native Windows code to be generated in
3677 the Cygwin environment as well as with the MinGW compiler.
3680 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3682 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3683 via timing by performing a MAC computation even if incorrrect
3684 block cipher padding has been found. This is a countermeasure
3685 against active attacks where the attacker has to distinguish
3686 between bad padding and a MAC verification error. (CVE-2003-0078)
3688 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3689 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3690 Martin Vuagnoux (EPFL, Ilion)]
3692 *) Make the no-err option work as intended. The intention with no-err
3693 is not to have the whole error stack handling routines removed from
3694 libcrypto, it's only intended to remove all the function name and
3695 reason texts, thereby removing some of the footprint that may not
3696 be interesting if those errors aren't displayed anyway.
3698 NOTE: it's still possible for any application or module to have it's
3699 own set of error texts inserted. The routines are there, just not
3700 used by default when no-err is given.
3703 *) Add support for FreeBSD on IA64.
3704 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3706 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3707 Kerberos function mit_des_cbc_cksum(). Before this change,
3708 the value returned by DES_cbc_cksum() was like the one from
3709 mit_des_cbc_cksum(), except the bytes were swapped.
3710 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3712 *) Allow an application to disable the automatic SSL chain building.
3713 Before this a rather primitive chain build was always performed in
3714 ssl3_output_cert_chain(): an application had no way to send the
3715 correct chain if the automatic operation produced an incorrect result.
3717 Now the chain builder is disabled if either:
3719 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3721 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3723 The reasoning behind this is that an application would not want the
3724 auto chain building to take place if extra chain certificates are
3725 present and it might also want a means of sending no additional
3726 certificates (for example the chain has two certificates and the
3730 *) Add the possibility to build without the ENGINE framework.
3731 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3733 *) Under Win32 gmtime() can return NULL: check return value in
3734 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3737 *) DSA routines: under certain error conditions uninitialized BN objects
3738 could be freed. Solution: make sure initialization is performed early
3739 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3740 Nils Larsch <nla@trustcenter.de> via PR#459)
3743 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3744 checked on reconnect on the client side, therefore session resumption
3745 could still fail with a "ssl session id is different" error. This
3746 behaviour is masked when SSL_OP_ALL is used due to
3747 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3748 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3749 followup to PR #377.
3752 *) IA-32 assembler support enhancements: unified ELF targets, support
3753 for SCO/Caldera platforms, fix for Cygwin shared build.
3756 *) Add support for FreeBSD on sparc64. As a consequence, support for
3757 FreeBSD on non-x86 processors is separate from x86 processors on
3758 the config script, much like the NetBSD support.
3759 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3761 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3763 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3766 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3767 code (06) was taken as the first octet of the session ID and the last
3768 octet was ignored consequently. As a result SSLv2 client side session
3769 caching could not have worked due to the session ID mismatch between
3771 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3775 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3776 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3780 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3781 seems that in spite of existing for more than a year, many application
3782 author have done nothing to provide the necessary callbacks, which
3783 means that this particular engine will not work properly anywhere.
3784 This is a very unfortunate situation which forces us, in the name
3785 of usability, to give the hw_ncipher.c a static lock, which is part
3787 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3788 appear in 0.9.8 or later. We EXPECT application authors to have
3789 dealt properly with this when 0.9.8 is released (unless we actually
3790 make such changes in the libcrypto locking code that changes will
3791 have to be made anyway).
3794 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3795 octets have been read, EOF or an error occurs. Without this change
3796 some truncated ASN1 structures will not produce an error.
3799 *) Disable Heimdal support, since it hasn't been fully implemented.
3800 Still give the possibility to force the use of Heimdal, but with
3801 warnings and a request that patches get sent to openssl-dev.
3804 *) Add the VC-CE target, introduce the WINCE sysname, and add
3805 INSTALL.WCE and appropriate conditionals to make it build.
3806 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3808 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3809 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3810 edit numbers of the version.
3811 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3813 *) Introduce safe string copy and catenation functions
3814 (BUF_strlcpy() and BUF_strlcat()).
3815 [Ben Laurie (CHATS) and Richard Levitte]
3817 *) Avoid using fixed-size buffers for one-line DNs.
3818 [Ben Laurie (CHATS)]
3820 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3821 resizing buffers containing secrets, and use where appropriate.
3822 [Ben Laurie (CHATS)]
3824 *) Avoid using fixed size buffers for configuration file location.
3825 [Ben Laurie (CHATS)]
3827 *) Avoid filename truncation for various CA files.
3828 [Ben Laurie (CHATS)]
3830 *) Use sizeof in preference to magic numbers.
3831 [Ben Laurie (CHATS)]
3833 *) Avoid filename truncation in cert requests.
3834 [Ben Laurie (CHATS)]
3836 *) Add assertions to check for (supposedly impossible) buffer
3838 [Ben Laurie (CHATS)]
3840 *) Don't cache truncated DNS entries in the local cache (this could
3841 potentially lead to a spoofing attack).
3842 [Ben Laurie (CHATS)]
3844 *) Fix various buffers to be large enough for hex/decimal
3845 representations in a platform independent manner.
3846 [Ben Laurie (CHATS)]
3848 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3849 resizing buffers containing secrets, and use where appropriate.
3850 [Ben Laurie (CHATS)]
3852 *) Add BIO_indent() to avoid much slightly worrying code to do
3854 [Ben Laurie (CHATS)]
3856 *) Convert sprintf()/BIO_puts() to BIO_printf().
3857 [Ben Laurie (CHATS)]
3859 *) buffer_gets() could terminate with the buffer only half
3861 [Ben Laurie (CHATS)]
3863 *) Add assertions to prevent user-supplied crypto functions from
3864 overflowing internal buffers by having large block sizes, etc.
3865 [Ben Laurie (CHATS)]
3867 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3869 [Ben Laurie (CHATS)]
3871 *) Eliminate unused copy of key in RC4.
3872 [Ben Laurie (CHATS)]
3874 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3875 [Ben Laurie (CHATS)]
3877 *) Fix off-by-one error in EGD path.
3878 [Ben Laurie (CHATS)]
3880 *) If RANDFILE path is too long, ignore instead of truncating.
3881 [Ben Laurie (CHATS)]
3883 *) Eliminate unused and incorrectly sized X.509 structure
3885 [Ben Laurie (CHATS)]
3887 *) Eliminate unused and dangerous function knumber().
3888 [Ben Laurie (CHATS)]
3890 *) Eliminate unused and dangerous structure, KSSL_ERR.
3891 [Ben Laurie (CHATS)]
3893 *) Protect against overlong session ID context length in an encoded
3894 session object. Since these are local, this does not appear to be
3896 [Ben Laurie (CHATS)]
3898 *) Change from security patch (see 0.9.6e below) that did not affect
3899 the 0.9.6 release series:
3901 Remote buffer overflow in SSL3 protocol - an attacker could
3902 supply an oversized master key in Kerberos-enabled versions.
3904 [Ben Laurie (CHATS)]
3906 *) Change the SSL kerb5 codes to match RFC 2712.
3909 *) Make -nameopt work fully for req and add -reqopt switch.
3910 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3912 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3913 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3915 *) Make sure tests can be performed even if the corresponding algorithms
3916 have been removed entirely. This was also the last step to make
3917 OpenSSL compilable with DJGPP under all reasonable conditions.
3918 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3920 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3921 to allow version independent disabling of normally unselected ciphers,
3922 which may be activated as a side-effect of selecting a single cipher.
3924 (E.g., cipher list string "RSA" enables ciphersuites that are left
3925 out of "ALL" because they do not provide symmetric encryption.
3926 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3927 [Lutz Jaenicke, Bodo Moeller]
3929 *) Add appropriate support for separate platform-dependent build
3930 directories. The recommended way to make a platform-dependent
3931 build directory is the following (tested on Linux), maybe with
3934 # Place yourself outside of the OpenSSL source tree. In
3935 # this example, the environment variable OPENSSL_SOURCE
3936 # is assumed to contain the absolute OpenSSL source directory.
3937 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3938 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3939 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3940 mkdir -p `dirname $F`
3941 ln -s $OPENSSL_SOURCE/$F $F
3944 To be absolutely sure not to disturb the source tree, a "make clean"
3945 is a good thing. If it isn't successfull, don't worry about it,
3946 it probably means the source directory is very clean.
3949 *) Make sure any ENGINE control commands make local copies of string
3950 pointers passed to them whenever necessary. Otherwise it is possible
3951 the caller may have overwritten (or deallocated) the original string
3952 data when a later ENGINE operation tries to use the stored values.
3953 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3955 *) Improve diagnostics in file reading and command-line digests.
3956 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3958 *) Add AES modes CFB and OFB to the object database. Correct an
3959 error in AES-CFB decryption.
3962 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3963 allows existing EVP_CIPHER_CTX structures to be reused after
3964 calling EVP_*Final(). This behaviour is used by encryption
3965 BIOs and some applications. This has the side effect that
3966 applications must explicitly clean up cipher contexts with
3967 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3970 *) Check the values of dna and dnb in bn_mul_recursive before calling
3971 bn_mul_comba (a non zero value means the a or b arrays do not contain
3972 n2 elements) and fallback to bn_mul_normal if either is not zero.
3975 *) Fix escaping of non-ASCII characters when using the -subj option
3976 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3979 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3980 form for "surname", serialNumber has no short form.
3981 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3982 therefore remove "mail" short name for "internet 7".
3983 The OID for unique identifiers in X509 certificates is
3984 x500UniqueIdentifier, not uniqueIdentifier.
3985 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3988 *) Add an "init" command to the ENGINE config module and auto initialize
3989 ENGINEs. Without any "init" command the ENGINE will be initialized
3990 after all ctrl commands have been executed on it. If init=1 the
3991 ENGINE is initailized at that point (ctrls before that point are run
3992 on the uninitialized ENGINE and after on the initialized one). If
3993 init=0 then the ENGINE will not be iniatialized at all.
3996 *) Fix the 'app_verify_callback' interface so that the user-defined
3997 argument is actually passed to the callback: In the
3998 SSL_CTX_set_cert_verify_callback() prototype, the callback
3999 declaration has been changed from
4002 int (*cb)(X509_STORE_CTX *,void *);
4003 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4004 i=s->ctx->app_verify_callback(&ctx)
4005 has been changed into
4006 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4008 To update applications using SSL_CTX_set_cert_verify_callback(),
4009 a dummy argument can be added to their callback functions.
4010 [D. K. Smetters <smetters@parc.xerox.com>]
4012 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4013 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4015 *) Add and OPENSSL_LOAD_CONF define which will cause
4016 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4017 This allows older applications to transparently support certain
4018 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4019 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4020 load the config file and OPENSSL_add_all_algorithms_conf() which will
4021 always load it have also been added.
4024 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4025 Adjust NIDs and EVP layer.
4026 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4028 *) Config modules support in openssl utility.
4030 Most commands now load modules from the config file,
4031 though in a few (such as version) this isn't done
4032 because it couldn't be used for anything.
4034 In the case of ca and req the config file used is
4035 the same as the utility itself: that is the -config
4036 command line option can be used to specify an
4040 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4041 use "openssl_conf" if filename is NULL use default openssl config file.
4044 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4045 config section name. Add a new flag to tolerate a missing config file
4046 and move code to CONF_modules_load_file().
4049 *) Support for crypto accelerator cards from Accelerated Encryption
4050 Processing, www.aep.ie. (Use engine 'aep')
4051 The support was copied from 0.9.6c [engine] and adapted/corrected
4052 to work with the new engine framework.
4053 [AEP Inc. and Richard Levitte]
4055 *) Support for SureWare crypto accelerator cards from Baltimore
4056 Technologies. (Use engine 'sureware')
4057 The support was copied from 0.9.6c [engine] and adapted
4058 to work with the new engine framework.
4061 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4062 make the newer ENGINE framework commands for the CHIL engine work.
4063 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4065 *) Make it possible to produce shared libraries on ReliantUNIX.
4066 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4068 *) Add the configuration target debug-linux-ppro.
4069 Make 'openssl rsa' use the general key loading routines
4070 implemented in apps.c, and make those routines able to
4071 handle the key format FORMAT_NETSCAPE and the variant
4073 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4075 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4076 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4078 *) Add -keyform to rsautl, and document -engine.
4079 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4081 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4082 BIO_R_NO_SUCH_FILE error code rather than the generic
4083 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4086 *) Add new functions
4088 ERR_peek_last_error_line
4089 ERR_peek_last_error_line_data.
4090 These are similar to
4093 ERR_peek_error_line_data,
4094 but report on the latest error recorded rather than the first one
4095 still in the error queue.
4096 [Ben Laurie, Bodo Moeller]
4098 *) default_algorithms option in ENGINE config module. This allows things
4100 default_algorithms = ALL
4101 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4104 *) Prelminary ENGINE config module.
4107 *) New experimental application configuration code.
4110 *) Change the AES code to follow the same name structure as all other
4111 symmetric ciphers, and behave the same way. Move everything to
4112 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4113 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4115 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4116 [Ben Laurie and Theo de Raadt]
4118 *) Add option to output public keys in req command.
4119 [Massimiliano Pala madwolf@openca.org]
4121 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4122 (up to about 10% better than before for P-192 and P-224).
4125 *) New functions/macros
4127 SSL_CTX_set_msg_callback(ctx, cb)
4128 SSL_CTX_set_msg_callback_arg(ctx, arg)
4129 SSL_set_msg_callback(ssl, cb)
4130 SSL_set_msg_callback_arg(ssl, arg)
4132 to request calling a callback function
4134 void cb(int write_p, int version, int content_type,
4135 const void *buf, size_t len, SSL *ssl, void *arg)
4137 whenever a protocol message has been completely received
4138 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4139 protocol version according to which the SSL library interprets
4140 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4141 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4142 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4143 specification (change_cipher_spec(20), alert(21), handshake(22)).
4144 'buf' and 'len' point to the actual message, 'ssl' to the
4145 SSL object, and 'arg' is the application-defined value set by
4146 SSL[_CTX]_set_msg_callback_arg().
4148 'openssl s_client' and 'openssl s_server' have new '-msg' options
4149 to enable a callback that displays all protocol messages.
4152 *) Change the shared library support so shared libraries are built as
4153 soon as the corresponding static library is finished, and thereby get
4154 openssl and the test programs linked against the shared library.
4155 This still only happens when the keyword "shard" has been given to
4156 the configuration scripts.
4158 NOTE: shared library support is still an experimental thing, and
4159 backward binary compatibility is still not guaranteed.
4160 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4162 *) Add support for Subject Information Access extension.
4163 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4165 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4166 additional bytes when new memory had to be allocated, not just
4167 when reusing an existing buffer.
4170 *) New command line and configuration option 'utf8' for the req command.
4171 This allows field values to be specified as UTF8 strings.
4174 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4175 runs for the former and machine-readable output for the latter.
4178 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4179 of the e-mail address in the DN (i.e., it will go into a certificate
4180 extension only). The new configuration file option 'email_in_dn = no'
4181 has the same effect.
4182 [Massimiliano Pala madwolf@openca.org]
4184 *) Change all functions with names starting with des_ to be starting
4185 with DES_ instead. Add wrappers that are compatible with libdes,
4186 but are named _ossl_old_des_*. Finally, add macros that map the
4187 des_* symbols to the corresponding _ossl_old_des_* if libdes
4188 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4189 desired, the des_* symbols will be mapped to DES_*, with one
4192 Since we provide two compatibility mappings, the user needs to
4193 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4194 compatibility is desired. The default (i.e., when that macro
4195 isn't defined) is OpenSSL 0.9.6c compatibility.
4197 There are also macros that enable and disable the support of old
4198 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4199 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4200 are defined, the default will apply: to support the old des routines.
4202 In either case, one must include openssl/des.h to get the correct
4203 definitions. Do not try to just include openssl/des_old.h, that
4206 NOTE: This is a major break of an old API into a new one. Software
4207 authors are encouraged to switch to the DES_ style functions. Some
4208 time in the future, des_old.h and the libdes compatibility functions
4209 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4210 default), and then completely removed.
4213 *) Test for certificates which contain unsupported critical extensions.
4214 If such a certificate is found during a verify operation it is
4215 rejected by default: this behaviour can be overridden by either
4216 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4217 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4218 X509_supported_extension() has also been added which returns 1 if a
4219 particular extension is supported.
4222 *) Modify the behaviour of EVP cipher functions in similar way to digests
4223 to retain compatibility with existing code.
4226 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4227 compatibility with existing code. In particular the 'ctx' parameter does
4228 not have to be to be initialized before the call to EVP_DigestInit() and
4229 it is tidied up after a call to EVP_DigestFinal(). New function
4230 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4231 EVP_MD_CTX_copy() changed to not require the destination to be
4232 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4233 requires the destination to be valid.
4235 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4236 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4239 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4240 so that complete 'Handshake' protocol structures are kept in memory
4241 instead of overwriting 'msg_type' and 'length' with 'body' data.
4244 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4245 [Massimo Santin via Richard Levitte]
4247 *) Major restructuring to the underlying ENGINE code. This includes
4248 reduction of linker bloat, separation of pure "ENGINE" manipulation
4249 (initialisation, etc) from functionality dealing with implementations
4250 of specific crypto iterfaces. This change also introduces integrated
4251 support for symmetric ciphers and digest implementations - so ENGINEs
4252 can now accelerate these by providing EVP_CIPHER and EVP_MD
4253 implementations of their own. This is detailed in crypto/engine/README
4254 as it couldn't be adequately described here. However, there are a few
4255 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4256 were changed in the original introduction of ENGINE code have now
4257 reverted back - the hooking from this code to ENGINE is now a good
4258 deal more passive and at run-time, operations deal directly with
4259 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4260 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4261 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4262 they were not being used by the framework as there is no concept of a
4263 BIGNUM_METHOD and they could not be generalised to the new
4264 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4265 ENGINE_cpy() has been removed as it cannot be consistently defined in
4269 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4272 *) Change mkdef.pl to sort symbols that get the same entry number,
4273 and make sure the automatically generated functions ERR_load_*
4274 become part of libeay.num as well.
4277 *) New function SSL_renegotiate_pending(). This returns true once
4278 renegotiation has been requested (either SSL_renegotiate() call
4279 or HelloRequest/ClientHello receveived from the peer) and becomes
4280 false once a handshake has been completed.
4281 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4282 sends a HelloRequest, but does not ensure that a handshake takes
4283 place. SSL_renegotiate_pending() is useful for checking if the
4284 client has followed the request.)
4287 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4288 By default, clients may request session resumption even during
4289 renegotiation (if session ID contexts permit); with this option,
4290 session resumption is possible only in the first handshake.
4292 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4293 more bits available for options that should not be part of
4294 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4297 *) Add some demos for certificate and certificate request creation.
4300 *) Make maximum certificate chain size accepted from the peer application
4301 settable (SSL*_get/set_max_cert_list()), as proposed by
4302 "Douglas E. Engert" <deengert@anl.gov>.
4305 *) Add support for shared libraries for Unixware-7
4306 (Boyd Lynn Gerber <gerberb@zenez.com>).
4309 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4310 be done prior to destruction. Use this to unload error strings from
4311 ENGINEs that load their own error strings. NB: This adds two new API
4312 functions to "get" and "set" this destroy handler in an ENGINE.
4315 *) Alter all existing ENGINE implementations (except "openssl" and
4316 "openbsd") to dynamically instantiate their own error strings. This
4317 makes them more flexible to be built both as statically-linked ENGINEs
4318 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4319 Also, add stub code to each that makes building them as self-contained
4320 shared-libraries easier (see README.ENGINE).
4323 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4324 implementations into applications that are completely implemented in
4325 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4326 commands that can be used to configure what shared-library to load and
4327 to control aspects of the way it is handled. Also, made an update to
4328 the README.ENGINE file that brings its information up-to-date and
4329 provides some information and instructions on the "dynamic" ENGINE
4330 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4333 *) Make it possible to unload ranges of ERR strings with a new
4334 "ERR_unload_strings" function.
4337 *) Add a copy() function to EVP_MD.
4340 *) Make EVP_MD routines take a context pointer instead of just the
4341 md_data void pointer.
4344 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4345 that the digest can only process a single chunk of data
4346 (typically because it is provided by a piece of
4347 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4348 is only going to provide a single chunk of data, and hence the
4349 framework needn't accumulate the data for oneshot drivers.
4352 *) As with "ERR", make it possible to replace the underlying "ex_data"
4353 functions. This change also alters the storage and management of global
4354 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4355 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4356 index counters. The API functions that use this state have been changed
4357 to take a "class_index" rather than pointers to the class's local STACK
4358 and counter, and there is now an API function to dynamically create new
4359 classes. This centralisation allows us to (a) plug a lot of the
4360 thread-safety problems that existed, and (b) makes it possible to clean
4361 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4362 such data would previously have always leaked in application code and
4363 workarounds were in place to make the memory debugging turn a blind eye
4364 to it. Application code that doesn't use this new function will still
4365 leak as before, but their memory debugging output will announce it now
4366 rather than letting it slide.
4368 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4369 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4370 has a return value to indicate success or failure.
4373 *) Make it possible to replace the underlying "ERR" functions such that the
4374 global state (2 LHASH tables and 2 locks) is only used by the "default"
4375 implementation. This change also adds two functions to "get" and "set"
4376 the implementation prior to it being automatically set the first time
4377 any other ERR function takes place. Ie. an application can call "get",
4378 pass the return value to a module it has just loaded, and that module
4379 can call its own "set" function using that value. This means the
4380 module's "ERR" operations will use (and modify) the error state in the
4381 application and not in its own statically linked copy of OpenSSL code.
4384 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4385 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4386 the operation, and provides a more encapsulated way for external code
4387 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4388 to use these functions rather than manually incrementing the counts.
4390 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4393 *) Add EVP test program.
4396 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4399 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4400 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4401 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4402 These allow a CRL to be built without having to access X509_CRL fields
4403 directly. Modify 'ca' application to use new functions.
4406 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4407 bug workarounds. Rollback attack detection is a security feature.
4408 The problem will only arise on OpenSSL servers when TLSv1 is not
4409 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4410 Software authors not wanting to support TLSv1 will have special reasons
4411 for their choice and can explicitly enable this option.
4412 [Bodo Moeller, Lutz Jaenicke]
4414 *) Rationalise EVP so it can be extended: don't include a union of
4415 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4416 (similar to those existing for EVP_CIPHER_CTX).
4421 EVP_MD_CTX_init(&md); /* new function call */
4422 EVP_DigestInit(&md, EVP_sha1());
4423 EVP_DigestUpdate(&md, in, len);
4424 EVP_DigestFinal(&md, out, NULL);
4425 EVP_MD_CTX_cleanup(&md); /* new function call */
4429 *) Make DES key schedule conform to the usual scheme, as well as
4430 correcting its structure. This means that calls to DES functions
4431 now have to pass a pointer to a des_key_schedule instead of a
4432 plain des_key_schedule (which was actually always a pointer
4435 des_key_schedule ks;
4437 des_set_key_checked(..., &ks);
4438 des_ncbc_encrypt(..., &ks, ...);
4440 (Note that a later change renames 'des_...' into 'DES_...'.)
4443 *) Initial reduction of linker bloat: the use of some functions, such as
4444 PEM causes large amounts of unused functions to be linked in due to
4445 poor organisation. For example pem_all.c contains every PEM function
4446 which has a knock on effect of linking in large amounts of (unused)
4447 ASN1 code. Grouping together similar functions and splitting unrelated
4448 functions prevents this.
4451 *) Cleanup of EVP macros.
4454 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4455 correct _ecb suffix.
4458 *) Add initial OCSP responder support to ocsp application. The
4459 revocation information is handled using the text based index
4460 use by the ca application. The responder can either handle
4461 requests generated internally, supplied in files (for example
4462 via a CGI script) or using an internal minimal server.
4465 *) Add configuration choices to get zlib compression for TLS.
4468 *) Changes to Kerberos SSL for RFC 2712 compliance:
4469 1. Implemented real KerberosWrapper, instead of just using
4470 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4471 2. Implemented optional authenticator field of KerberosWrapper.
4473 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4474 and authenticator structs; see crypto/krb5/.
4476 Generalized Kerberos calls to support multiple Kerberos libraries.
4477 [Vern Staats <staatsvr@asc.hpc.mil>,
4478 Jeffrey Altman <jaltman@columbia.edu>
4479 via Richard Levitte]
4481 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4482 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4483 values for each of the key sizes rather than having just
4484 parameters (and 'speed' generating keys each time).
4487 *) Speed up EVP routines.
4490 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4491 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4492 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4493 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4495 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4496 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4497 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4500 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4502 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4505 *) Added the OS2-EMX target.
4506 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4508 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4509 to support NCONF routines in extension code. New function CONF_set_nconf()
4510 to allow functions which take an NCONF to also handle the old LHASH
4511 structure: this means that the old CONF compatible routines can be
4512 retained (in particular wrt extensions) without having to duplicate the
4513 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4516 *) Enhance the general user interface with mechanisms for inner control
4517 and with possibilities to have yes/no kind of prompts.
4520 *) Change all calls to low level digest routines in the library and
4521 applications to use EVP. Add missing calls to HMAC_cleanup() and
4522 don't assume HMAC_CTX can be copied using memcpy().
4523 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4525 *) Add the possibility to control engines through control names but with
4526 arbitrary arguments instead of just a string.
4527 Change the key loaders to take a UI_METHOD instead of a callback
4528 function pointer. NOTE: this breaks binary compatibility with earlier
4529 versions of OpenSSL [engine].
4530 Adapt the nCipher code for these new conditions and add a card insertion
4534 *) Enhance the general user interface with mechanisms to better support
4535 dialog box interfaces, application-defined prompts, the possibility
4536 to use defaults (for example default passwords from somewhere else)
4537 and interrupts/cancellations.
4540 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4541 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4544 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4545 tidy up some unnecessarily weird code in 'sk_new()').
4546 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4548 *) Change the key loading routines for ENGINEs to use the same kind
4549 callback (pem_password_cb) as all other routines that need this
4553 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4554 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4555 than this minimum value is recommended.
4558 *) New random seeder for OpenVMS, using the system process statistics
4559 that are easily reachable.
4562 *) Windows apparently can't transparently handle global
4563 variables defined in DLLs. Initialisations such as:
4565 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4567 wont compile. This is used by the any applications that need to
4568 declare their own ASN1 modules. This was fixed by adding the option
4569 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4570 needed for static libraries under Win32.
4573 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4574 setting of purpose and trust fields. New X509_STORE trust and
4575 purpose functions and tidy up setting in other SSL functions.
4578 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4579 structure. These are inherited by X509_STORE_CTX when it is
4580 initialised. This allows various defaults to be set in the
4581 X509_STORE structure (such as flags for CRL checking and custom
4582 purpose or trust settings) for functions which only use X509_STORE_CTX
4583 internally such as S/MIME.
4585 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4586 trust settings if they are not set in X509_STORE. This allows X509_STORE
4587 purposes and trust (in S/MIME for example) to override any set by default.
4589 Add command line options for CRL checking to smime, s_client and s_server
4593 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4594 are set then the CRL is looked up in the X509_STORE structure and
4595 its validity and signature checked, then if the certificate is found
4596 in the CRL the verify fails with a revoked error.
4598 Various new CRL related callbacks added to X509_STORE_CTX structure.
4600 Command line options added to 'verify' application to support this.
4602 This needs some additional work, such as being able to handle multiple
4603 CRLs with different times, extension based lookup (rather than just
4604 by subject name) and ultimately more complete V2 CRL extension
4608 *) Add a general user interface API (crypto/ui/). This is designed
4609 to replace things like des_read_password and friends (backward
4610 compatibility functions using this new API are provided).
4611 The purpose is to remove prompting functions from the DES code
4612 section as well as provide for prompting through dialog boxes in
4613 a window system and the like.
4616 *) Add "ex_data" support to ENGINE so implementations can add state at a
4617 per-structure level rather than having to store it globally.
4620 *) Make it possible for ENGINE structures to be copied when retrieved by
4621 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4622 This causes the "original" ENGINE structure to act like a template,
4623 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4624 operational state can be localised to each ENGINE structure, despite the
4625 fact they all share the same "methods". New ENGINE structures returned in
4626 this case have no functional references and the return value is the single
4627 structural reference. This matches the single structural reference returned
4628 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4632 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4633 needs to match any other type at all we need to manually clear the
4637 *) Changes to the "openssl engine" utility to include;
4638 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4639 about an ENGINE's available control commands.
4640 - executing control commands from command line arguments using the
4641 '-pre' and '-post' switches. '-post' is only used if '-t' is
4642 specified and the ENGINE is successfully initialised. The syntax for
4643 the individual commands are colon-separated, for example;
4644 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4647 *) New dynamic control command support for ENGINEs. ENGINEs can now
4648 declare their own commands (numbers), names (strings), descriptions,
4649 and input types for run-time discovery by calling applications. A
4650 subset of these commands are implicitly classed as "executable"
4651 depending on their input type, and only these can be invoked through
4652 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4653 can be based on user input, config files, etc). The distinction is
4654 that "executable" commands cannot return anything other than a boolean
4655 result and can only support numeric or string input, whereas some
4656 discoverable commands may only be for direct use through
4657 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4658 pointers, or other custom uses. The "executable" commands are to
4659 support parameterisations of ENGINE behaviour that can be
4660 unambiguously defined by ENGINEs and used consistently across any
4661 OpenSSL-based application. Commands have been added to all the
4662 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4663 control over shared-library paths without source code alterations.
4666 *) Changed all ENGINE implementations to dynamically allocate their
4667 ENGINEs rather than declaring them statically. Apart from this being
4668 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4669 this also allows the implementations to compile without using the
4670 internal engine_int.h header.
4673 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4674 'const' value. Any code that should be able to modify a RAND_METHOD
4675 should already have non-const pointers to it (ie. they should only
4676 modify their own ones).
4679 *) Made a variety of little tweaks to the ENGINE code.
4680 - "atalla" and "ubsec" string definitions were moved from header files
4681 to C code. "nuron" string definitions were placed in variables
4682 rather than hard-coded - allowing parameterisation of these values
4683 later on via ctrl() commands.
4684 - Removed unused "#if 0"'d code.
4685 - Fixed engine list iteration code so it uses ENGINE_free() to release
4686 structural references.
4687 - Constified the RAND_METHOD element of ENGINE structures.
4688 - Constified various get/set functions as appropriate and added
4689 missing functions (including a catch-all ENGINE_cpy that duplicates
4690 all ENGINE values onto a new ENGINE except reference counts/state).
4691 - Removed NULL parameter checks in get/set functions. Setting a method
4692 or function to NULL is a way of cancelling out a previously set
4693 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4694 and doesn't justify the extra error symbols and code.
4695 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4696 flags from engine_int.h to engine.h.
4697 - Changed prototypes for ENGINE handler functions (init(), finish(),
4698 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4701 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4702 to the algorithm using long division. The binary algorithm can be
4703 used only if the modulus is odd. On 32-bit systems, it is faster
4704 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4705 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4706 up to 450 bits. In 64-bit environments, the binary algorithm
4707 appears to be advantageous for much longer moduli; here we use it
4708 for moduli up to 2048 bits.
4711 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4712 could not support the combine flag in choice fields.
4715 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4716 extensions from a certificate request to the certificate.
4719 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4720 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4721 file: this allows the display of the certificate about to be
4722 signed to be customised, to allow certain fields to be included
4723 or excluded and extension details. The old system didn't display
4724 multicharacter strings properly, omitted fields not in the policy
4725 and couldn't display additional details such as extensions.
4728 *) Function EC_POINTs_mul for multiple scalar multiplication
4729 of an arbitrary number of elliptic curve points
4730 \sum scalars[i]*points[i],
4731 optionally including the generator defined for the EC_GROUP:
4732 scalar*generator + \sum scalars[i]*points[i].
4734 EC_POINT_mul is a simple wrapper function for the typical case
4735 that the point list has just one item (besides the optional
4739 *) First EC_METHODs for curves over GF(p):
4741 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4742 operations and provides various method functions that can also
4743 operate with faster implementations of modular arithmetic.
4745 EC_GFp_mont_method() reuses most functions that are part of
4746 EC_GFp_simple_method, but uses Montgomery arithmetic.
4748 [Bodo Moeller; point addition and point doubling
4749 implementation directly derived from source code provided by
4750 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4752 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4753 crypto/ec/ec_lib.c):
4755 Curves are EC_GROUP objects (with an optional group generator)
4756 based on EC_METHODs that are built into the library.
4758 Points are EC_POINT objects based on EC_GROUP objects.
4760 Most of the framework would be able to handle curves over arbitrary
4761 finite fields, but as there are no obvious types for fields other
4762 than GF(p), some functions are limited to that for now.
4765 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4766 that the file contains a complete HTTP response.
4769 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4770 change the def and num file printf format specifier from "%-40sXXX"
4771 to "%-39s XXX". The latter will always guarantee a space after the
4772 field while the former will cause them to run together if the field
4773 is 40 of more characters long.
4776 *) Constify the cipher and digest 'method' functions and structures
4777 and modify related functions to take constant EVP_MD and EVP_CIPHER
4781 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4782 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4785 *) Modify EVP_Digest*() routines so they now return values. Although the
4786 internal software routines can never fail additional hardware versions
4790 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4792 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4793 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4796 ERR_R_NESTED_ASN1_ERROR
4798 ERR_R_MISSING_ASN1_EOS
4799 were 4 .. 9, conflicting with
4800 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4802 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4803 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4805 Add new error code 'ERR_R_INTERNAL_ERROR'.
4808 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4812 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4813 sets the subject name for a new request or supersedes the
4814 subject name in a given request. Formats that can be parsed are
4815 'CN=Some Name, OU=myOU, C=IT'
4817 'CN=Some Name/OU=myOU/C=IT'.
4819 Add options '-batch' and '-verbose' to 'openssl req'.
4820 [Massimiliano Pala <madwolf@hackmasters.net>]
4822 *) Introduce the possibility to access global variables through
4823 functions on platform were that's the best way to handle exporting
4824 global variables in shared libraries. To enable this functionality,
4825 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4826 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4827 is normally done by Configure or something similar).
4829 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4830 in the source file (foo.c) like this:
4832 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4833 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4835 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4836 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4838 OPENSSL_DECLARE_GLOBAL(int,foo);
4839 #define foo OPENSSL_GLOBAL_REF(foo)
4840 OPENSSL_DECLARE_GLOBAL(double,bar);
4841 #define bar OPENSSL_GLOBAL_REF(bar)
4843 The #defines are very important, and therefore so is including the
4844 header file everywhere where the defined globals are used.
4846 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4847 of ASN.1 items, but that structure is a bit different.
4849 The largest change is in util/mkdef.pl which has been enhanced with
4850 better and easier to understand logic to choose which symbols should
4851 go into the Windows .def files as well as a number of fixes and code
4852 cleanup (among others, algorithm keywords are now sorted
4853 lexicographically to avoid constant rewrites).
4856 *) In BN_div() keep a copy of the sign of 'num' before writing the
4857 result to 'rm' because if rm==num the value will be overwritten
4858 and produce the wrong result if 'num' is negative: this caused
4859 problems with BN_mod() and BN_nnmod().
4862 *) Function OCSP_request_verify(). This checks the signature on an
4863 OCSP request and verifies the signer certificate. The signer
4864 certificate is just checked for a generic purpose and OCSP request
4868 *) Add OCSP_check_validity() function to check the validity of OCSP
4869 responses. OCSP responses are prepared in real time and may only
4870 be a few seconds old. Simply checking that the current time lies
4871 between thisUpdate and nextUpdate max reject otherwise valid responses
4872 caused by either OCSP responder or client clock inaccuracy. Instead
4873 we allow thisUpdate and nextUpdate to fall within a certain period of
4874 the current time. The age of the response can also optionally be
4875 checked. Two new options -validity_period and -status_age added to
4879 *) If signature or public key algorithm is unrecognized print out its
4880 OID rather that just UNKNOWN.
4883 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4884 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4885 ID to be generated from the issuer certificate alone which can then be
4886 passed to OCSP_id_issuer_cmp().
4889 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4890 ASN1 modules to export functions returning ASN1_ITEM pointers
4891 instead of the ASN1_ITEM structures themselves. This adds several
4892 new macros which allow the underlying ASN1 function/structure to
4893 be accessed transparently. As a result code should not use ASN1_ITEM
4894 references directly (such as &X509_it) but instead use the relevant
4895 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4896 use of the new ASN1 code on platforms where exporting structures
4897 is problematical (for example in shared libraries) but exporting
4898 functions returning pointers to structures is not.
4901 *) Add support for overriding the generation of SSL/TLS session IDs.
4902 These callbacks can be registered either in an SSL_CTX or per SSL.
4903 The purpose of this is to allow applications to control, if they wish,
4904 the arbitrary values chosen for use as session IDs, particularly as it
4905 can be useful for session caching in multiple-server environments. A
4906 command-line switch for testing this (and any client code that wishes
4907 to use such a feature) has been added to "s_server".
4908 [Geoff Thorpe, Lutz Jaenicke]
4910 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4911 of the form '#if defined(...) || defined(...) || ...' and
4912 '#if !defined(...) && !defined(...) && ...'. This also avoids
4913 the growing number of special cases it was previously handling.
4916 *) Make all configuration macros available for application by making
4917 sure they are available in opensslconf.h, by giving them names starting
4918 with "OPENSSL_" to avoid conflicts with other packages and by making
4919 sure e_os2.h will cover all platform-specific cases together with
4921 Additionally, it is now possible to define configuration/platform-
4922 specific names (called "system identities"). In the C code, these
4923 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4924 macro with the name beginning with "OPENSSL_SYS_", which is determined
4925 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4929 *) New option -set_serial to 'req' and 'x509' this allows the serial
4930 number to use to be specified on the command line. Previously self
4931 signed certificates were hard coded with serial number 0 and the
4932 CA options of 'x509' had to use a serial number in a file which was
4936 *) New options to 'ca' utility to support V2 CRL entry extensions.
4937 Currently CRL reason, invalidity date and hold instruction are
4938 supported. Add new CRL extensions to V3 code and some new objects.
4941 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4942 disable standard block padding (aka PKCS#5 padding) in the EVP
4943 API, which was previously mandatory. This means that the data is
4944 not padded in any way and so the total length much be a multiple
4945 of the block size, otherwise an error occurs.
4948 *) Initial (incomplete) OCSP SSL support.
4951 *) New function OCSP_parse_url(). This splits up a URL into its host,
4952 port and path components: primarily to parse OCSP URLs. New -url
4953 option to ocsp utility.
4956 *) New nonce behavior. The return value of OCSP_check_nonce() now
4957 reflects the various checks performed. Applications can decide
4958 whether to tolerate certain situations such as an absent nonce
4959 in a response when one was present in a request: the ocsp application
4960 just prints out a warning. New function OCSP_add1_basic_nonce()
4961 this is to allow responders to include a nonce in a response even if
4962 the request is nonce-less.
4965 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4966 skipped when using openssl x509 multiple times on a single input file,
4967 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4970 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4971 set string type: to handle setting ASN1_TIME structures. Fix ca
4972 utility to correctly initialize revocation date of CRLs.
4975 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4976 the clients preferred ciphersuites and rather use its own preferences.
4977 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4978 Internet Explorer by ensuring unchanged hash method during stepup.
4979 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4982 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4983 to aes and add a new 'exist' option to print out symbols that don't
4987 *) Additional options to ocsp utility to allow flags to be set and
4988 additional certificates supplied.
4991 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4992 OCSP client a number of certificate to only verify the response
4996 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4997 handle the new API. Currently only ECB, CBC modes supported. Add new
5000 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5001 Encryption Standard (AES) Ciphersuites for Transport Layer
5002 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5003 not enabled by default and were not part of the "ALL" ciphersuite
5004 alias because they were not yet official; they could be
5005 explicitly requested by specifying the "AESdraft" ciphersuite
5006 group alias. In the final release of OpenSSL 0.9.7, the group
5007 alias is called "AES" and is part of "ALL".)
5008 [Ben Laurie, Steve Henson, Bodo Moeller]
5010 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5011 request to response.
5014 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5015 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5016 extract information from a certificate request. OCSP_response_create()
5017 creates a response and optionally adds a basic response structure.
5018 OCSP_basic_add1_status() adds a complete single response to a basic
5019 response and returns the OCSP_SINGLERESP structure just added (to allow
5020 extensions to be included for example). OCSP_basic_add1_cert() adds a
5021 certificate to a basic response and OCSP_basic_sign() signs a basic
5022 response with various flags. New helper functions ASN1_TIME_check()
5023 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5024 (converts ASN1_TIME to GeneralizedTime).
5027 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5028 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5029 structure from a certificate. X509_pubkey_digest() digests the public_key
5030 contents: this is used in various key identifiers.
5033 *) Make sk_sort() tolerate a NULL argument.
5034 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5036 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5037 passed by the function are trusted implicitly. If any of them signed the
5038 response then it is assumed to be valid and is not verified.
5041 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5042 to data. This was previously part of the PKCS7 ASN1 code. This
5043 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5044 [Steve Henson, reported by Kenneth R. Robinette
5045 <support@securenetterm.com>]
5047 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5048 routines: without these tracing memory leaks is very painful.
5049 Fix leaks in PKCS12 and PKCS7 routines.
5052 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5053 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5054 effectively meant GeneralizedTime would never be used. Now it
5055 is initialised to -1 but X509_time_adj() now has to check the value
5056 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5057 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5058 [Steve Henson, reported by Kenneth R. Robinette
5059 <support@securenetterm.com>]
5061 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5062 result in a zero length in the ASN1_INTEGER structure which was
5063 not consistent with the structure when d2i_ASN1_INTEGER() was used
5064 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5065 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5066 where it did not print out a minus for negative ASN1_INTEGER.
5069 *) Add summary printout to ocsp utility. The various functions which
5070 convert status values to strings have been renamed to:
5071 OCSP_response_status_str(), OCSP_cert_status_str() and
5072 OCSP_crl_reason_str() and are no longer static. New options
5073 to verify nonce values and to disable verification. OCSP response
5074 printout format cleaned up.
5077 *) Add additional OCSP certificate checks. These are those specified
5078 in RFC2560. This consists of two separate checks: the CA of the
5079 certificate being checked must either be the OCSP signer certificate
5080 or the issuer of the OCSP signer certificate. In the latter case the
5081 OCSP signer certificate must contain the OCSP signing extended key
5082 usage. This check is performed by attempting to match the OCSP
5083 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5084 in the OCSP_CERTID structures of the response.
5087 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5088 and related routines. This uses the standard OpenSSL certificate
5089 verify routines to perform initial checks (just CA validity) and
5090 to obtain the certificate chain. Then additional checks will be
5091 performed on the chain. Currently the root CA is checked to see
5092 if it is explicitly trusted for OCSP signing. This is used to set
5093 a root CA as a global signing root: that is any certificate that
5094 chains to that CA is an acceptable OCSP signing certificate.
5097 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5098 extensions from a separate configuration file.
5099 As when reading extensions from the main configuration file,
5100 the '-extensions ...' option may be used for specifying the
5102 [Massimiliano Pala <madwolf@comune.modena.it>]
5104 *) New OCSP utility. Allows OCSP requests to be generated or
5105 read. The request can be sent to a responder and the output
5106 parsed, outputed or printed in text form. Not complete yet:
5107 still needs to check the OCSP response validity.
5110 *) New subcommands for 'openssl ca':
5111 'openssl ca -status <serial>' prints the status of the cert with
5112 the given serial number (according to the index file).
5113 'openssl ca -updatedb' updates the expiry status of certificates
5115 [Massimiliano Pala <madwolf@comune.modena.it>]
5117 *) New '-newreq-nodes' command option to CA.pl. This is like
5118 '-newreq', but calls 'openssl req' with the '-nodes' option
5119 so that the resulting key is not encrypted.
5120 [Damien Miller <djm@mindrot.org>]
5122 *) New configuration for the GNU Hurd.
5123 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5125 *) Initial code to implement OCSP basic response verify. This
5126 is currently incomplete. Currently just finds the signer's
5127 certificate and verifies the signature on the response.
5130 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5131 value of OPENSSLDIR. This is available via the new '-d' option
5132 to 'openssl version', and is also included in 'openssl version -a'.
5135 *) Allowing defining memory allocation callbacks that will be given
5136 file name and line number information in additional arguments
5137 (a const char* and an int). The basic functionality remains, as
5138 well as the original possibility to just replace malloc(),
5139 realloc() and free() by functions that do not know about these
5140 additional arguments. To register and find out the current
5141 settings for extended allocation functions, the following
5142 functions are provided:
5144 CRYPTO_set_mem_ex_functions
5145 CRYPTO_set_locked_mem_ex_functions
5146 CRYPTO_get_mem_ex_functions
5147 CRYPTO_get_locked_mem_ex_functions
5149 These work the same way as CRYPTO_set_mem_functions and friends.
5150 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5151 extended allocation function is enabled.
5152 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5153 a conventional allocation function is enabled.
5154 [Richard Levitte, Bodo Moeller]
5156 *) Finish off removing the remaining LHASH function pointer casts.
5157 There should no longer be any prototype-casting required when using
5158 the LHASH abstraction, and any casts that remain are "bugs". See
5159 the callback types and macros at the head of lhash.h for details
5160 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5163 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5164 If /dev/[u]random devices are not available or do not return enough
5165 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5167 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5168 /etc/entropy will be queried once each in this sequence, quering stops
5169 when enough entropy was collected without querying more sockets.
5172 *) Change the Unix RAND_poll() variant to be able to poll several
5173 random devices, as specified by DEVRANDOM, until a sufficient amount
5174 of data has been collected. We spend at most 10 ms on each file
5175 (select timeout) and read in non-blocking mode. DEVRANDOM now
5176 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5177 (previously it was just the string "/dev/urandom"), so on typical
5178 platforms the 10 ms delay will never occur.
5179 Also separate out the Unix variant to its own file, rand_unix.c.
5180 For VMS, there's a currently-empty rand_vms.c.
5183 *) Move OCSP client related routines to ocsp_cl.c. These
5184 provide utility functions which an application needing
5185 to issue a request to an OCSP responder and analyse the
5186 response will typically need: as opposed to those which an
5187 OCSP responder itself would need which will be added later.
5189 OCSP_request_sign() signs an OCSP request with an API similar
5190 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5191 response. OCSP_response_get1_basic() extracts basic response
5192 from response. OCSP_resp_find_status(): finds and extracts status
5193 information from an OCSP_CERTID structure (which will be created
5194 when the request structure is built). These are built from lower
5195 level functions which work on OCSP_SINGLERESP structures but
5196 wont normally be used unless the application wishes to examine
5197 extensions in the OCSP response for example.
5199 Replace nonce routines with a pair of functions.
5200 OCSP_request_add1_nonce() adds a nonce value and optionally
5201 generates a random value. OCSP_check_nonce() checks the
5202 validity of the nonce in an OCSP response.
5205 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5206 This doesn't copy the supplied OCSP_CERTID and avoids the
5207 need to free up the newly created id. Change return type
5208 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5209 This can then be used to add extensions to the request.
5210 Deleted OCSP_request_new(), since most of its functionality
5211 is now in OCSP_REQUEST_new() (and the case insensitive name
5212 clash) apart from the ability to set the request name which
5213 will be added elsewhere.
5216 *) Update OCSP API. Remove obsolete extensions argument from
5217 various functions. Extensions are now handled using the new
5218 OCSP extension code. New simple OCSP HTTP function which
5219 can be used to send requests and parse the response.
5222 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5223 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5224 uses the special reorder version of SET OF to sort the attributes
5225 and reorder them to match the encoded order. This resolves a long
5226 standing problem: a verify on a PKCS7 structure just after signing
5227 it used to fail because the attribute order did not match the
5228 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5229 it uses the received order. This is necessary to tolerate some broken
5230 software that does not order SET OF. This is handled by encoding
5231 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5232 to produce the required SET OF.
5235 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5236 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5237 files to get correct declarations of the ASN.1 item variables.
5240 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5241 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5242 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5243 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5244 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5245 ASN1_ITEM and no wrapper functions.
5248 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5249 replace the old function pointer based I/O routines. Change most of
5250 the *_d2i_bio() and *_d2i_fp() functions to use these.
5253 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5254 lines, recognice more "algorithms" that can be deselected, and make
5255 it complain about algorithm deselection that isn't recognised.
5258 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5259 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5260 to use new functions. Add NO_ASN1_OLD which can be set to remove
5261 some old style ASN1 functions: this can be used to determine if old
5262 code will still work when these eventually go away.
5265 *) New extension functions for OCSP structures, these follow the
5266 same conventions as certificates and CRLs.
5269 *) New function X509V3_add1_i2d(). This automatically encodes and
5270 adds an extension. Its behaviour can be customised with various
5271 flags to append, replace or delete. Various wrappers added for
5272 certifcates and CRLs.
5275 *) Fix to avoid calling the underlying ASN1 print routine when
5276 an extension cannot be parsed. Correct a typo in the
5277 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5280 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5281 entries for variables.
5284 *) Add functionality to apps/openssl.c for detecting locking
5285 problems: As the program is single-threaded, all we have
5286 to do is register a locking callback using an array for
5287 storing which locks are currently held by the program.
5290 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5291 SSL_get_ex_data_X509_STORE_idx(), which is used in
5292 ssl_verify_cert_chain() and thus can be called at any time
5293 during TLS/SSL handshakes so that thread-safety is essential.
5294 Unfortunately, the ex_data design is not at all suited
5295 for multi-threaded use, so it probably should be abolished.
5298 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5299 [Broadcom, tweaked and integrated by Geoff Thorpe]
5301 *) Move common extension printing code to new function
5302 X509V3_print_extensions(). Reorganise OCSP print routines and
5303 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5306 *) New function X509_signature_print() to remove duplication in some
5310 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5311 set (this was treated exactly the same as SET OF previously). This
5312 is used to reorder the STACK representing the structure to match the
5313 encoding. This will be used to get round a problem where a PKCS7
5314 structure which was signed could not be verified because the STACK
5315 order did not reflect the encoded order.
5318 *) Reimplement the OCSP ASN1 module using the new code.
5321 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5322 for its ASN1 operations. The old style function pointers still exist
5323 for now but they will eventually go away.
5326 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5327 completely replaces the old ASN1 functionality with a table driven
5328 encoder and decoder which interprets an ASN1_ITEM structure describing
5329 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5330 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5331 has also been converted to the new form.
5334 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5335 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5336 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5337 for negative moduli.
5340 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5341 of not touching the result's sign bit.
5344 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5348 *) Changed the LHASH code to use prototypes for callbacks, and created
5349 macros to declare and implement thin (optionally static) functions
5350 that provide type-safety and avoid function pointer casting for the
5351 type-specific callbacks.
5354 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5356 [Veers Staats <staatsvr@asc.hpc.mil>,
5357 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5359 *) Reformat the FAQ so the different questions and answers can be divided
5360 in sections depending on the subject.
5363 *) Have the zlib compression code load ZLIB.DLL dynamically under
5367 *) New function BN_mod_sqrt for computing square roots modulo a prime
5368 (using the probabilistic Tonelli-Shanks algorithm unless
5369 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5370 be handled deterministically).
5371 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5373 *) Make BN_mod_inverse faster by explicitly handling small quotients
5374 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5375 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5378 *) New function BN_kronecker.
5381 *) Fix BN_gcd so that it works on negative inputs; the result is
5382 positive unless both parameters are zero.
5383 Previously something reasonably close to an infinite loop was
5384 possible because numbers could be growing instead of shrinking
5385 in the implementation of Euclid's algorithm.
5388 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5389 sign of the number in question.
5391 Fix BN_is_word(a,w) to work correctly for w == 0.
5393 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5394 because its test if the absolute value of 'a' equals 'w'.
5395 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5396 it exists mostly for use in the implementations of BN_is_zero(),
5397 BN_is_one(), and BN_is_word().
5400 *) New function BN_swap.
5403 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5404 the exponentiation functions are more likely to produce reasonable
5405 results on negative inputs.
5408 *) Change BN_mod_mul so that the result is always non-negative.
5409 Previously, it could be negative if one of the factors was negative;
5410 I don't think anyone really wanted that behaviour.
5413 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5414 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5415 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5416 and add new functions:
5425 BN_mod_lshift1_quick
5429 These functions always generate non-negative results.
5431 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5432 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5434 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5435 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5436 be reduced modulo m.
5437 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5440 The following entry accidentily appeared in the CHANGES file
5441 distributed with OpenSSL 0.9.7. The modifications described in
5442 it do *not* apply to OpenSSL 0.9.7.
5444 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5445 was actually never needed) and in BN_mul(). The removal in BN_mul()
5446 required a small change in bn_mul_part_recursive() and the addition
5447 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5448 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5449 bn_sub_words() and bn_add_words() except they take arrays with
5454 *) In 'openssl passwd', verify passwords read from the terminal
5455 unless the '-salt' option is used (which usually means that
5456 verification would just waste user's time since the resulting
5457 hash is going to be compared with some given password hash)
5458 or the new '-noverify' option is used.
5460 This is an incompatible change, but it does not affect
5461 non-interactive use of 'openssl passwd' (passwords on the command
5462 line, '-stdin' option, '-in ...' option) and thus should not
5466 *) Remove all references to RSAref, since there's no more need for it.
5469 *) Make DSO load along a path given through an environment variable
5470 (SHLIB_PATH) with shl_load().
5473 *) Constify the ENGINE code as a result of BIGNUM constification.
5474 Also constify the RSA code and most things related to it. In a
5475 few places, most notable in the depth of the ASN.1 code, ugly
5476 casts back to non-const were required (to be solved at a later
5480 *) Make it so the openssl application has all engines loaded by default.
5483 *) Constify the BIGNUM routines a little more.
5486 *) Add the following functions:
5488 ENGINE_load_cswift()
5490 ENGINE_load_atalla()
5492 ENGINE_load_builtin_engines()
5494 That way, an application can itself choose if external engines that
5495 are built-in in OpenSSL shall ever be used or not. The benefit is
5496 that applications won't have to be linked with libdl or other dso
5497 libraries unless it's really needed.
5499 Changed 'openssl engine' to load all engines on demand.
5500 Changed the engine header files to avoid the duplication of some
5501 declarations (they differed!).
5504 *) 'openssl engine' can now list capabilities.
5507 *) Better error reporting in 'openssl engine'.
5510 *) Never call load_dh_param(NULL) in s_server.
5513 *) Add engine application. It can currently list engines by name and
5514 identity, and test if they are actually available.
5517 *) Improve RPM specification file by forcing symbolic linking and making
5518 sure the installed documentation is also owned by root.root.
5519 [Damien Miller <djm@mindrot.org>]
5521 *) Give the OpenSSL applications more possibilities to make use of
5522 keys (public as well as private) handled by engines.
5525 *) Add OCSP code that comes from CertCo.
5528 *) Add VMS support for the Rijndael code.
5531 *) Added untested support for Nuron crypto accelerator.
5534 *) Add support for external cryptographic devices. This code was
5535 previously distributed separately as the "engine" branch.
5536 [Geoff Thorpe, Richard Levitte]
5538 *) Rework the filename-translation in the DSO code. It is now possible to
5539 have far greater control over how a "name" is turned into a filename
5540 depending on the operating environment and any oddities about the
5541 different shared library filenames on each system.
5544 *) Support threads on FreeBSD-elf in Configure.
5547 *) Fix for SHA1 assembly problem with MASM: it produces
5548 warnings about corrupt line number information when assembling
5549 with debugging information. This is caused by the overlapping
5551 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5554 NCONF_get_number() has no error checking at all. As a replacement,
5555 NCONF_get_number_e() is defined (_e for "error checking") and is
5556 promoted strongly. The old NCONF_get_number is kept around for
5557 binary backward compatibility.
5558 Make it possible for methods to load from something other than a BIO,
5559 by providing a function pointer that is given a name instead of a BIO.
5560 For example, this could be used to load configuration data from an
5564 *) Fix for non blocking accept BIOs. Added new I/O special reason
5565 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5566 with non blocking I/O was not possible because no retry code was
5567 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5571 *) Added the beginnings of Rijndael support.
5574 *) Fix for bug in DirectoryString mask setting. Add support for
5575 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5576 to allow certificate printing to more controllable, additional
5577 'certopt' option to 'x509' to allow new printing options to be
5581 *) Clean old EAY MD5 hack from e_os.h.
5584 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5586 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5587 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5588 [Joe Orton, Steve Henson]
5590 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5592 *) Fix additional bug revealed by the NISCC test suite:
5594 Stop bug triggering large recursion when presented with
5595 certain ASN.1 tags (CVE-2003-0851)
5598 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5600 *) Fix various bugs revealed by running the NISCC test suite:
5602 Stop out of bounds reads in the ASN1 code when presented with
5603 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5605 If verify callback ignores invalid public key errors don't try to check
5606 certificate signature with the NULL public key.
5610 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5611 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5615 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5616 extra data after the compression methods not only for TLS 1.0
5617 but also for SSL 3.0 (as required by the specification).
5618 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5620 *) Change X509_certificate_type() to mark the key as exported/exportable
5621 when it's 512 *bits* long, not 512 bytes.
5624 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5626 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5627 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5628 a protocol version number mismatch like a decryption error
5629 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5632 *) Turn on RSA blinding by default in the default implementation
5633 to avoid a timing attack. Applications that don't want it can call
5634 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5635 They would be ill-advised to do so in most cases.
5636 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5638 *) Change RSA blinding code so that it works when the PRNG is not
5639 seeded (in this case, the secret RSA exponent is abused as
5640 an unpredictable seed -- if it is not unpredictable, there
5641 is no point in blinding anyway). Make RSA blinding thread-safe
5642 by remembering the creator's thread ID in rsa->blinding and
5643 having all other threads use local one-time blinding factors
5644 (this requires more computation than sharing rsa->blinding, but
5645 avoids excessive locking; and if an RSA object is not shared
5646 between threads, blinding will still be very fast).
5649 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5651 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5652 via timing by performing a MAC computation even if incorrrect
5653 block cipher padding has been found. This is a countermeasure
5654 against active attacks where the attacker has to distinguish
5655 between bad padding and a MAC verification error. (CVE-2003-0078)
5657 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5658 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5659 Martin Vuagnoux (EPFL, Ilion)]
5661 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5663 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5664 memory from it's contents. This is done with a counter that will
5665 place alternating values in each byte. This can be used to solve
5666 two issues: 1) the removal of calls to memset() by highly optimizing
5667 compilers, and 2) cleansing with other values than 0, since those can
5668 be read through on certain media, for example a swap space on disk.
5671 *) Bugfix: client side session caching did not work with external caching,
5672 because the session->cipher setting was not restored when reloading
5673 from the external cache. This problem was masked, when
5674 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5675 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5678 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5679 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5680 [Zeev Lieber <zeev-l@yahoo.com>]
5682 *) Undo an undocumented change introduced in 0.9.6e which caused
5683 repeated calls to OpenSSL_add_all_ciphers() and
5684 OpenSSL_add_all_digests() to be ignored, even after calling
5688 *) Change the default configuration reader to deal with last line not
5689 being properly terminated.
5692 *) Change X509_NAME_cmp() so it applies the special rules on handling
5693 DN values that are of type PrintableString, as well as RDNs of type
5694 emailAddress where the value has the type ia5String.
5695 [stefank@valicert.com via Richard Levitte]
5697 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5698 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5699 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5700 the bitwise-OR of the two for use by the majority of applications
5701 wanting this behaviour, and update the docs. The documented
5702 behaviour and actual behaviour were inconsistent and had been
5703 changing anyway, so this is more a bug-fix than a behavioural
5705 [Geoff Thorpe, diagnosed by Nadav Har'El]
5707 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5708 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5711 *) Fix initialization code race conditions in
5712 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5713 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5714 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5715 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5716 ssl2_get_cipher_by_char(),
5717 ssl3_get_cipher_by_char().
5718 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5720 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5721 the cached sessions are flushed, as the remove_cb() might use ex_data
5722 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5723 (see [openssl.org #212]).
5724 [Geoff Thorpe, Lutz Jaenicke]
5726 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5727 length, instead of the encoding length to d2i_ASN1_OBJECT.
5730 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5732 *) [In 0.9.6g-engine release:]
5733 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5734 [Lynn Gazis <lgazis@rainbow.com>]
5736 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5738 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5739 and get fix the header length calculation.
5740 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5741 Alon Kantor <alonk@checkpoint.com> (and others),
5744 *) Use proper error handling instead of 'assertions' in buffer
5745 overflow checks added in 0.9.6e. This prevents DoS (the
5746 assertions could call abort()).
5747 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5749 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5751 *) Add various sanity checks to asn1_get_length() to reject
5752 the ASN1 length bytes if they exceed sizeof(long), will appear
5753 negative or the content length exceeds the length of the
5755 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5757 *) Fix cipher selection routines: ciphers without encryption had no flags
5758 for the cipher strength set and where therefore not handled correctly
5759 by the selection routines (PR #130).
5762 *) Fix EVP_dsa_sha macro.
5766 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5767 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5768 that was added in OpenSSL 0.9.6d.
5770 As the countermeasure turned out to be incompatible with some
5771 broken SSL implementations, the new option is part of SSL_OP_ALL.
5772 SSL_OP_ALL is usually employed when compatibility with weird SSL
5773 implementations is desired (e.g. '-bugs' option to 's_client' and
5774 's_server'), so the new option is automatically set in many
5778 *) Changes in security patch:
5780 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5781 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5782 Air Force Materiel Command, USAF, under agreement number
5785 *) Add various sanity checks to asn1_get_length() to reject
5786 the ASN1 length bytes if they exceed sizeof(long), will appear
5787 negative or the content length exceeds the length of the
5788 supplied buffer. (CVE-2002-0659)
5789 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5791 *) Assertions for various potential buffer overflows, not known to
5793 [Ben Laurie (CHATS)]
5795 *) Various temporary buffers to hold ASCII versions of integers were
5796 too small for 64 bit platforms. (CVE-2002-0655)
5797 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5799 *) Remote buffer overflow in SSL3 protocol - an attacker could
5800 supply an oversized session ID to a client. (CVE-2002-0656)
5801 [Ben Laurie (CHATS)]
5803 *) Remote buffer overflow in SSL2 protocol - an attacker could
5804 supply an oversized client master key. (CVE-2002-0656)
5805 [Ben Laurie (CHATS)]
5807 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5809 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5810 encoded as NULL) with id-dsa-with-sha1.
5811 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5813 *) Check various X509_...() return values in apps/req.c.
5814 [Nils Larsch <nla@trustcenter.de>]
5816 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5817 an end-of-file condition would erronously be flagged, when the CRLF
5818 was just at the end of a processed block. The bug was discovered when
5819 processing data through a buffering memory BIO handing the data to a
5820 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5821 <ptsekov@syntrex.com> and Nedelcho Stanev.
5824 *) Implement a countermeasure against a vulnerability recently found
5825 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5826 before application data chunks to avoid the use of known IVs
5827 with data potentially chosen by the attacker.
5830 *) Fix length checks in ssl3_get_client_hello().
5833 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5834 to prevent ssl3_read_internal() from incorrectly assuming that
5835 ssl3_read_bytes() found application data while handshake
5836 processing was enabled when in fact s->s3->in_read_app_data was
5837 merely automatically cleared during the initial handshake.
5838 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5840 *) Fix object definitions for Private and Enterprise: they were not
5841 recognized in their shortname (=lowercase) representation. Extend
5842 obj_dat.pl to issue an error when using undefined keywords instead
5843 of silently ignoring the problem (Svenning Sorensen
5844 <sss@sss.dnsalias.net>).
5847 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5848 generators, i.e. generators other than 2 and 5. (Previously, the
5849 code did not properly initialise the 'add' and 'rem' values to
5850 BN_generate_prime().)
5852 In the new general case, we do not insist that 'generator' is
5853 actually a primitive root: This requirement is rather pointless;
5854 a generator of the order-q subgroup is just as good, if not
5858 *) Map new X509 verification errors to alerts. Discovered and submitted by
5859 Tom Wu <tom@arcot.com>.
5862 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5863 returning non-zero before the data has been completely received
5864 when using non-blocking I/O.
5865 [Bodo Moeller; problem pointed out by John Hughes]
5867 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5868 [Ben Laurie, Lutz Jaenicke]
5870 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5871 Yoram Zahavi <YoramZ@gilian.com>).
5874 *) Add information about CygWin 1.3 and on, and preserve proper
5875 configuration for the versions before that.
5876 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5878 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5879 check whether we deal with a copy of a session and do not delete from
5880 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5881 <izhar@checkpoint.com>.
5884 *) Do not store session data into the internal session cache, if it
5885 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5886 flag is set). Proposed by Aslam <aslam@funk.com>.
5889 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5893 *) [In 0.9.6d-engine release:]
5894 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5895 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5897 *) Add the configuration target linux-s390x.
5898 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5900 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5901 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5902 variable as an indication that a ClientHello message has been
5903 received. As the flag value will be lost between multiple
5904 invocations of ssl3_accept when using non-blocking I/O, the
5905 function may not be aware that a handshake has actually taken
5906 place, thus preventing a new session from being added to the
5909 To avoid this problem, we now set s->new_session to 2 instead of
5910 using a local variable.
5911 [Lutz Jaenicke, Bodo Moeller]
5913 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5914 if the SSL_R_LENGTH_MISMATCH error is detected.
5915 [Geoff Thorpe, Bodo Moeller]
5917 *) New 'shared_ldflag' column in Configure platform table.
5920 *) Fix EVP_CIPHER_mode macro.
5921 ["Dan S. Camper" <dan@bti.net>]
5923 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5924 type, we must throw them away by setting rr->length to 0.
5925 [D P Chang <dpc@qualys.com>]
5927 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5929 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5930 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5931 worked incorrectly for those cases where range = 10..._2 and
5932 3*range is two bits longer than range.)
5935 *) Only add signing time to PKCS7 structures if it is not already
5939 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5940 OBJ_ld_ce should be OBJ_id_ce.
5941 Also some ip-pda OIDs in crypto/objects/objects.txt were
5942 incorrect (cf. RFC 3039).
5943 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5945 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5946 returns early because it has nothing to do.
5947 [Andy Schneider <andy.schneider@bjss.co.uk>]
5949 *) [In 0.9.6c-engine release:]
5950 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5951 [Andy Schneider <andy.schneider@bjss.co.uk>]
5953 *) [In 0.9.6c-engine release:]
5954 Add support for Cryptographic Appliance's keyserver technology.
5955 (Use engine 'keyclient')
5956 [Cryptographic Appliances and Geoff Thorpe]
5958 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5959 is called via tools/c89.sh because arguments have to be
5960 rearranged (all '-L' options must appear before the first object
5962 [Richard Shapiro <rshapiro@abinitio.com>]
5964 *) [In 0.9.6c-engine release:]
5965 Add support for Broadcom crypto accelerator cards, backported
5967 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5969 *) [In 0.9.6c-engine release:]
5970 Add support for SureWare crypto accelerator cards from
5971 Baltimore Technologies. (Use engine 'sureware')
5972 [Baltimore Technologies and Mark Cox]
5974 *) [In 0.9.6c-engine release:]
5975 Add support for crypto accelerator cards from Accelerated
5976 Encryption Processing, www.aep.ie. (Use engine 'aep')
5977 [AEP Inc. and Mark Cox]
5979 *) Add a configuration entry for gcc on UnixWare.
5980 [Gary Benson <gbenson@redhat.com>]
5982 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5983 messages are stored in a single piece (fixed-length part and
5984 variable-length part combined) and fix various bugs found on the way.
5987 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5988 instead. BIO_gethostbyname() does not know what timeouts are
5989 appropriate, so entries would stay in cache even when they have
5991 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5993 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5994 faced with a pathologically small ClientHello fragment that does
5995 not contain client_version: Instead of aborting with an error,
5996 simply choose the highest available protocol version (i.e.,
5997 TLS 1.0 unless it is disabled). In practice, ClientHello
5998 messages are never sent like this, but this change gives us
5999 strictly correct behaviour at least for TLS.
6002 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6003 never resets s->method to s->ctx->method when called from within
6004 one of the SSL handshake functions.
6005 [Bodo Moeller; problem pointed out by Niko Baric]
6007 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6008 (sent using the client's version number) if client_version is
6009 smaller than the protocol version in use. Also change
6010 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6011 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6012 the client will at least see that alert.
6015 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6019 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6020 client receives HelloRequest while in a handshake.
6021 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6023 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6024 should end in 'break', not 'goto end' which circuments various
6025 cleanups done in state SSL_ST_OK. But session related stuff
6026 must be disabled for SSL_ST_OK in the case that we just sent a
6029 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6030 before just sending a HelloRequest.
6031 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6033 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6034 reveal whether illegal block cipher padding was found or a MAC
6035 verification error occured. (Neither SSLerr() codes nor alerts
6036 are directly visible to potential attackers, but the information
6037 may leak via logfiles.)
6039 Similar changes are not required for the SSL 2.0 implementation
6040 because the number of padding bytes is sent in clear for SSL 2.0,
6041 and the extra bytes are just ignored. However ssl/s2_pkt.c
6042 failed to verify that the purported number of padding bytes is in
6046 *) Add OpenUNIX-8 support including shared libraries
6047 (Boyd Lynn Gerber <gerberb@zenez.com>).
6050 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6051 'wristwatch attack' using huge encoding parameters (cf.
6052 James H. Manger's CRYPTO 2001 paper). Note that the
6053 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6054 encoding parameters and hence was not vulnerable.
6057 *) BN_sqr() bug fix.
6058 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6060 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6061 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6062 followed by modular reduction.
6063 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6065 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6066 equivalent based on BN_pseudo_rand() instead of BN_rand().
6069 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6070 This function was broken, as the check for a new client hello message
6071 to handle SGC did not allow these large messages.
6072 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6075 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6078 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6079 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6082 *) Rework the configuration and shared library support for Tru64 Unix.
6083 The configuration part makes use of modern compiler features and
6084 still retains old compiler behavior for those that run older versions
6085 of the OS. The shared library support part includes a variant that
6086 uses the RPATH feature, and is available through the special
6087 configuration target "alpha-cc-rpath", which will never be selected
6089 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6091 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6092 with the same message size as in ssl3_get_certificate_request().
6093 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6094 messages might inadvertently be reject as too long.
6095 [Petr Lampa <lampa@fee.vutbr.cz>]
6097 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6100 *) Modified SSL library such that the verify_callback that has been set
6101 specificly for an SSL object with SSL_set_verify() is actually being
6102 used. Before the change, a verify_callback set with this function was
6103 ignored and the verify_callback() set in the SSL_CTX at the time of
6104 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6105 to allow the necessary settings.
6108 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6109 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6110 done automatically (in contradiction to the requirements of the C
6111 standard). This made problems when used from OpenSSH.
6114 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6115 dh->length and always used
6117 BN_rand_range(priv_key, dh->p).
6119 BN_rand_range() is not necessary for Diffie-Hellman, and this
6120 specific range makes Diffie-Hellman unnecessarily inefficient if
6121 dh->length (recommended exponent length) is much smaller than the
6122 length of dh->p. We could use BN_rand_range() if the order of
6123 the subgroup was stored in the DH structure, but we only have
6128 BN_rand(priv_key, l, ...)
6130 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6136 RSA_eay_public_encrypt
6137 RSA_eay_private_decrypt
6138 RSA_eay_private_encrypt (signing)
6139 RSA_eay_public_decrypt (signature verification)
6141 (default implementations for RSA_public_encrypt,
6142 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6143 always reject numbers >= n.
6146 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6147 to synchronize access to 'locking_thread'. This is necessary on
6148 systems where access to 'locking_thread' (an 'unsigned long'
6149 variable) is not atomic.
6152 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6153 *before* setting the 'crypto_lock_rand' flag. The previous code had
6154 a race condition if 0 is a valid thread ID.
6155 [Travis Vitek <vitek@roguewave.com>]
6157 *) Add support for shared libraries under Irix.
6158 [Albert Chin-A-Young <china@thewrittenword.com>]
6160 *) Add configuration option to build on Linux on both big-endian and
6162 [Ralf Baechle <ralf@uni-koblenz.de>]
6164 *) Add the possibility to create shared libraries on HP-UX.
6167 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6169 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6170 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6171 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6172 PRNG state recovery was possible based on the output of
6173 one PRNG request appropriately sized to gain knowledge on
6174 'md' followed by enough consecutive 1-byte PRNG requests
6175 to traverse all of 'state'.
6177 1. When updating 'md_local' (the current thread's copy of 'md')
6178 during PRNG output generation, hash all of the previous
6179 'md_local' value, not just the half used for PRNG output.
6181 2. Make the number of bytes from 'state' included into the hash
6182 independent from the number of PRNG bytes requested.
6184 The first measure alone would be sufficient to avoid
6185 Markku-Juhani's attack. (Actually it had never occurred
6186 to me that the half of 'md_local' used for chaining was the
6187 half from which PRNG output bytes were taken -- I had always
6188 assumed that the secret half would be used.) The second
6189 measure makes sure that additional data from 'state' is never
6190 mixed into 'md_local' in small portions; this heuristically
6191 further strengthens the PRNG.
6194 *) Fix crypto/bn/asm/mips3.s.
6197 *) When only the key is given to "enc", the IV is undefined. Print out
6198 an error message in this case.
6201 *) Handle special case when X509_NAME is empty in X509 printing routines.
6204 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6205 positive and less than q.
6208 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6209 used: it isn't thread safe and the add_lock_callback should handle
6211 [Paul Rose <Paul.Rose@bridge.com>]
6213 *) Verify that incoming data obeys the block size in
6214 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6218 [Ulf Möller, Bodo Möller]
6220 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6221 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6222 when fixing the server behaviour for backwards-compatible 'client
6223 hello' messages. (Note that the attack is impractical against
6224 SSL 3.0 and TLS 1.0 anyway because length and version checking
6225 means that the probability of guessing a valid ciphertext is
6226 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6229 Before 0.9.5, the countermeasure (hide the error by generating a
6230 random 'decryption result') did not work properly because
6231 ERR_clear_error() was missing, meaning that SSL_get_error() would
6232 detect the supposedly ignored error.
6234 Both problems are now fixed.
6237 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6238 (previously it was 1024).
6241 *) Fix for compatibility mode trust settings: ignore trust settings
6242 unless some valid trust or reject settings are present.
6245 *) Fix for blowfish EVP: its a variable length cipher.
6248 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6249 parameters in DSA public key structures and return an error in the
6250 DSA routines if parameters are absent.
6253 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6254 in the current directory if neither $RANDFILE nor $HOME was set.
6255 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6256 caused some confusion to Windows users who haven't defined $HOME.
6257 Thus RAND_file_name() is changed again: e_os.h can define a
6258 DEFAULT_HOME, which will be used if $HOME is not set.
6259 For Windows, we use "C:"; on other platforms, we still require
6260 environment variables.
6262 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6263 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6264 having multiple threads call RAND_poll() concurrently.
6267 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6268 combination of a flag and a thread ID variable.
6269 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6270 flag), *other* threads can enter ssleay_add_bytes without obeying
6271 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6272 that they do not hold after the first thread unsets add_do_not_lock).
6275 *) Change bctest again: '-x' expressions are not available in all
6279 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6281 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6282 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6284 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6285 the default extension for executables, if any. Also, make the perl
6286 scripts that use symlink() to test if it really exists and use "cp"
6287 if it doesn't. All this made OpenSSL compilable and installable in
6291 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6292 If SEQUENCE is length is indefinite just set c->slen to the total
6293 amount of data available.
6294 [Steve Henson, reported by shige@FreeBSD.org]
6295 [This change does not apply to 0.9.7.]
6297 *) Change bctest to avoid here-documents inside command substitution
6298 (workaround for FreeBSD /bin/sh bug).
6299 For compatibility with Ultrix, avoid shell functions (introduced
6300 in the bctest version that searches along $PATH).
6303 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6304 with des_encrypt() defined on some operating systems, like Solaris
6308 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6309 On the Importance of Eliminating Errors in Cryptographic
6310 Computations, J. Cryptology 14 (2001) 2, 101-119,
6311 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6314 *) MIPS assembler BIGNUM division bug fix.
6317 *) Disabled incorrect Alpha assembler code.
6320 *) Fix PKCS#7 decode routines so they correctly update the length
6321 after reading an EOC for the EXPLICIT tag.
6323 [This change does not apply to 0.9.7.]
6325 *) Fix bug in PKCS#12 key generation routines. This was triggered
6326 if a 3DES key was generated with a 0 initial byte. Include
6327 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6328 (but broken) behaviour.
6331 *) Enhance bctest to search for a working bc along $PATH and print
6333 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6335 *) Fix memory leaks in err.c: free err_data string if necessary;
6336 don't write to the wrong index in ERR_set_error_data.
6339 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6343 *) Replace rdtsc with _emit statements for VC++ version 5.
6344 [Jeremy Cooper <jeremy@baymoo.org>]
6346 *) Make it possible to reuse SSLv2 sessions.
6349 *) In copy_email() check for >= 0 as a return value for
6350 X509_NAME_get_index_by_NID() since 0 is a valid index.
6351 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6353 *) Avoid coredump with unsupported or invalid public keys by checking if
6354 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6355 PKCS7_verify() fails with non detached data.
6358 *) Don't use getenv in library functions when run as setuid/setgid.
6359 New function OPENSSL_issetugid().
6362 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6363 due to incorrect handling of multi-threading:
6365 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6367 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6369 3. Count how many times MemCheck_off() has been called so that
6370 nested use can be treated correctly. This also avoids
6371 inband-signalling in the previous code (which relied on the
6372 assumption that thread ID 0 is impossible).
6375 *) Add "-rand" option also to s_client and s_server.
6378 *) Fix CPU detection on Irix 6.x.
6379 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6380 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6382 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6385 [This change does not apply to 0.9.7.]
6387 *) Use the cached encoding of an X509_NAME structure rather than
6388 copying it. This is apparently the reason for the libsafe "errors"
6389 but the code is actually correct.
6392 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6393 Bleichenbacher's DSA attack.
6394 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6395 to be set and top=0 forces the highest bit to be set; top=-1 is new
6396 and leaves the highest bit random.
6397 [Ulf Moeller, Bodo Moeller]
6399 *) In the NCONF_...-based implementations for CONF_... queries
6400 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6401 a temporary CONF structure with the data component set to NULL
6402 (which gives segmentation faults in lh_retrieve).
6403 Instead, use NULL for the CONF pointer in CONF_get_string and
6404 CONF_get_number (which may use environment variables) and directly
6405 return NULL from CONF_get_section.
6408 *) Fix potential buffer overrun for EBCDIC.
6411 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6412 keyUsage if basicConstraints absent for a CA.
6415 *) Make SMIME_write_PKCS7() write mail header values with a format that
6416 is more generally accepted (no spaces before the semicolon), since
6417 some programs can't parse those values properly otherwise. Also make
6418 sure BIO's that break lines after each write do not create invalid
6422 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6423 macros previously used would not encode an empty SEQUENCE OF
6424 and break the signature.
6426 [This change does not apply to 0.9.7.]
6428 *) Zero the premaster secret after deriving the master secret in
6432 *) Add some EVP_add_digest_alias registrations (as found in
6433 OpenSSL_add_all_digests()) to SSL_library_init()
6434 aka OpenSSL_add_ssl_algorithms(). This provides improved
6435 compatibility with peers using X.509 certificates
6436 with unconventional AlgorithmIdentifier OIDs.
6439 *) Fix for Irix with NO_ASM.
6440 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6442 *) ./config script fixes.
6443 [Ulf Moeller, Richard Levitte]
6445 *) Fix 'openssl passwd -1'.
6448 *) Change PKCS12_key_gen_asc() so it can cope with non null
6449 terminated strings whose length is passed in the passlen
6450 parameter, for example from PEM callbacks. This was done
6451 by adding an extra length parameter to asc2uni().
6452 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6454 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6455 call failed, free the DSA structure.
6458 *) Fix to uni2asc() to cope with zero length Unicode strings.
6459 These are present in some PKCS#12 files.
6462 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6463 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6464 when writing a 32767 byte record.
6465 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6467 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6468 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6470 (RSA objects have a reference count access to which is protected
6471 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6472 so they are meant to be shared between threads.)
6473 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6474 "Reddie, Steven" <Steven.Reddie@ca.com>]
6476 *) Fix a deadlock in CRYPTO_mem_leaks().
6479 *) Use better test patterns in bntest.
6482 *) rand_win.c fix for Borland C.
6485 *) BN_rshift bugfix for n == 0.
6488 *) Add a 'bctest' script that checks for some known 'bc' bugs
6489 so that 'make test' does not abort just because 'bc' is broken.
6492 *) Store verify_result within SSL_SESSION also for client side to
6493 avoid potential security hole. (Re-used sessions on the client side
6494 always resulted in verify_result==X509_V_OK, not using the original
6495 result of the server certificate verification.)
6498 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6499 SSL3_RT_APPLICATION_DATA, return 0.
6500 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6504 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6505 releases, have been re-implemented by renaming the previous
6506 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6507 and ssl3_read_internal, respectively, and adding 'peek' parameters
6508 to them. The new ssl[23]_{read,peek} functions are calls to
6509 ssl[23]_read_internal with the 'peek' flag set appropriately.
6510 A 'peek' parameter has also been added to ssl3_read_bytes, which
6511 does the actual work for ssl3_read_internal.
6514 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6515 the method-specific "init()" handler. Also clean up ex_data after
6516 calling the method-specific "finish()" handler. Previously, this was
6517 happening the other way round.
6520 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6521 The previous value, 12, was not always sufficient for BN_mod_exp().
6524 *) Make sure that shared libraries get the internal name engine with
6525 the full version number and not just 0. This should mark the
6526 shared libraries as not backward compatible. Of course, this should
6527 be changed again when we can guarantee backward binary compatibility.
6530 *) Fix typo in get_cert_by_subject() in by_dir.c
6531 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6533 *) Rework the system to generate shared libraries:
6535 - Make note of the expected extension for the shared libraries and
6536 if there is a need for symbolic links from for example libcrypto.so.0
6537 to libcrypto.so.0.9.7. There is extended info in Configure for
6540 - Make as few rebuilds of the shared libraries as possible.
6542 - Still avoid linking the OpenSSL programs with the shared libraries.
6544 - When installing, install the shared libraries separately from the
6548 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6550 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6551 and not in SSL_clear because the latter is also used by the
6552 accept/connect functions; previously, the settings made by
6553 SSL_set_read_ahead would be lost during the handshake.
6554 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6556 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6557 Previously, it would create entries for disableed algorithms no
6561 *) Added several new manual pages for SSL_* function.
6564 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6566 *) In ssl23_get_client_hello, generate an error message when faced
6567 with an initial SSL 3.0/TLS record that is too small to contain the
6568 first two bytes of the ClientHello message, i.e. client_version.
6569 (Note that this is a pathologic case that probably has never happened
6570 in real life.) The previous approach was to use the version number
6571 from the record header as a substitute; but our protocol choice
6572 should not depend on that one because it is not authenticated
6573 by the Finished messages.
6576 *) More robust randomness gathering functions for Windows.
6577 [Jeffrey Altman <jaltman@columbia.edu>]
6579 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6580 not set then we don't setup the error code for issuer check errors
6581 to avoid possibly overwriting other errors which the callback does
6582 handle. If an application does set the flag then we assume it knows
6583 what it is doing and can handle the new informational codes
6587 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6588 a general "ANY" type, as such it should be able to decode anything
6589 including tagged types. However it didn't check the class so it would
6590 wrongly interpret tagged types in the same way as their universal
6591 counterpart and unknown types were just rejected. Changed so that the
6592 tagged and unknown types are handled in the same way as a SEQUENCE:
6593 that is the encoding is stored intact. There is also a new type
6594 "V_ASN1_OTHER" which is used when the class is not universal, in this
6595 case we have no idea what the actual type is so we just lump them all
6599 *) On VMS, stdout may very well lead to a file that is written to
6600 in a record-oriented fashion. That means that every write() will
6601 write a separate record, which will be read separately by the
6602 programs trying to read from it. This can be very confusing.
6604 The solution is to put a BIO filter in the way that will buffer
6605 text until a linefeed is reached, and then write everything a
6606 line at a time, so every record written will be an actual line,
6607 not chunks of lines and not (usually doesn't happen, but I've
6608 seen it once) several lines in one record. BIO_f_linebuffer() is
6611 Currently, it's a VMS-only method, because that's where it has
6612 been tested well enough.
6615 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6616 it can return incorrect results.
6617 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6618 but it was in 0.9.6-beta[12].)
6621 *) Disable the check for content being present when verifying detached
6622 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6623 include zero length content when signing messages.
6626 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6627 BIO_ctrl (for BIO pairs).
6630 *) Add DSO method for VMS.
6633 *) Bug fix: Montgomery multiplication could produce results with the
6637 *) Add RPM specification openssl.spec and modify it to build three
6638 packages. The default package contains applications, application
6639 documentation and run-time libraries. The devel package contains
6640 include files, static libraries and function documentation. The
6641 doc package contains the contents of the doc directory. The original
6642 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6645 *) Add a large number of documentation files for many SSL routines.
6646 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6648 *) Add a configuration entry for Sony News 4.
6649 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6651 *) Don't set the two most significant bits to one when generating a
6652 random number < q in the DSA library.
6655 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6656 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6657 the underlying transport is blocking) if a handshake took place.
6658 (The default behaviour is needed by applications such as s_client
6659 and s_server that use select() to determine when to use SSL_read;
6660 but for applications that know in advance when to expect data, it
6661 just makes things more complicated.)
6664 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6668 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6669 work better on such systems.
6670 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6672 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6673 Update PKCS12_parse() so it copies the friendlyName and the
6674 keyid to the certificates aux info.
6677 *) Fix bug in PKCS7_verify() which caused an infinite loop
6678 if there was more than one signature.
6679 [Sven Uszpelkat <su@celocom.de>]
6681 *) Major change in util/mkdef.pl to include extra information
6682 about each symbol, as well as presentig variables as well
6683 as functions. This change means that there's n more need
6684 to rebuild the .num files when some algorithms are excluded.
6687 *) Allow the verify time to be set by an application,
6688 rather than always using the current time.
6691 *) Phase 2 verify code reorganisation. The certificate
6692 verify code now looks up an issuer certificate by a
6693 number of criteria: subject name, authority key id
6694 and key usage. It also verifies self signed certificates
6695 by the same criteria. The main comparison function is
6696 X509_check_issued() which performs these checks.
6698 Lot of changes were necessary in order to support this
6699 without completely rewriting the lookup code.
6701 Authority and subject key identifier are now cached.
6703 The LHASH 'certs' is X509_STORE has now been replaced
6704 by a STACK_OF(X509_OBJECT). This is mainly because an
6705 LHASH can't store or retrieve multiple objects with
6706 the same hash value.
6708 As a result various functions (which were all internal
6709 use only) have changed to handle the new X509_STORE
6710 structure. This will break anything that messed round
6711 with X509_STORE internally.
6713 The functions X509_STORE_add_cert() now checks for an
6714 exact match, rather than just subject name.
6716 The X509_STORE API doesn't directly support the retrieval
6717 of multiple certificates matching a given criteria, however
6718 this can be worked round by performing a lookup first
6719 (which will fill the cache with candidate certificates)
6720 and then examining the cache for matches. This is probably
6721 the best we can do without throwing out X509_LOOKUP
6722 entirely (maybe later...).
6724 The X509_VERIFY_CTX structure has been enhanced considerably.
6726 All certificate lookup operations now go via a get_issuer()
6727 callback. Although this currently uses an X509_STORE it
6728 can be replaced by custom lookups. This is a simple way
6729 to bypass the X509_STORE hackery necessary to make this
6730 work and makes it possible to use more efficient techniques
6731 in future. A very simple version which uses a simple
6732 STACK for its trusted certificate store is also provided
6733 using X509_STORE_CTX_trusted_stack().
6735 The verify_cb() and verify() callbacks now have equivalents
6736 in the X509_STORE_CTX structure.
6738 X509_STORE_CTX also has a 'flags' field which can be used
6739 to customise the verify behaviour.
6742 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6743 excludes S/MIME capabilities.
6746 *) When a certificate request is read in keep a copy of the
6747 original encoding of the signed data and use it when outputing
6748 again. Signatures then use the original encoding rather than
6749 a decoded, encoded version which may cause problems if the
6750 request is improperly encoded.
6753 *) For consistency with other BIO_puts implementations, call
6754 buffer_write(b, ...) directly in buffer_puts instead of calling
6757 In BIO_puts, increment b->num_write as in BIO_write.
6758 [Peter.Sylvester@EdelWeb.fr]
6760 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6761 BN_zero, we may not return a BIGNUM with an array consisting of
6765 *) Avoid calling abort() from within the library when problems are
6766 detected, except if preprocessor symbols have been defined
6767 (such as REF_CHECK, BN_DEBUG etc.).
6770 *) New openssl application 'rsautl'. This utility can be
6771 used for low level RSA operations. DER public key
6772 BIO/fp routines also added.
6775 *) New Configure entry and patches for compiling on QNX 4.
6776 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6778 *) A demo state-machine implementation was sponsored by
6779 Nuron (http://www.nuron.com/) and is now available in
6780 demos/state_machine.
6783 *) New options added to the 'dgst' utility for signature
6784 generation and verification.
6787 *) Unrecognized PKCS#7 content types are now handled via a
6788 catch all ASN1_TYPE structure. This allows unsupported
6789 types to be stored as a "blob" and an application can
6790 encode and decode it manually.
6793 *) Fix various signed/unsigned issues to make a_strex.c
6795 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6797 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6798 length if passed a buffer. ASN1_INTEGER_to_BN failed
6799 if passed a NULL BN and its argument was negative.
6800 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6802 *) Modification to PKCS#7 encoding routines to output definite
6803 length encoding. Since currently the whole structures are in
6804 memory there's not real point in using indefinite length
6805 constructed encoding. However if OpenSSL is compiled with
6806 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6809 *) Added BIO_vprintf() and BIO_vsnprintf().
6812 *) Added more prefixes to parse for in the the strings written
6813 through a logging bio, to cover all the levels that are available
6814 through syslog. The prefixes are now:
6816 PANIC, EMERG, EMR => LOG_EMERG
6817 ALERT, ALR => LOG_ALERT
6818 CRIT, CRI => LOG_CRIT
6819 ERROR, ERR => LOG_ERR
6820 WARNING, WARN, WAR => LOG_WARNING
6821 NOTICE, NOTE, NOT => LOG_NOTICE
6822 INFO, INF => LOG_INFO
6823 DEBUG, DBG => LOG_DEBUG
6825 and as before, if none of those prefixes are present at the
6826 beginning of the string, LOG_ERR is chosen.
6828 On Win32, the LOG_* levels are mapped according to this:
6830 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6831 LOG_WARNING => EVENTLOG_WARNING_TYPE
6832 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6836 *) Made it possible to reconfigure with just the configuration
6837 argument "reconf" or "reconfigure". The command line arguments
6838 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6839 and are retrieved from there when reconfiguring.
6843 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6845 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6848 *) The obj_dat.pl script was messing up the sorting of object
6849 names. The reason was that it compared the quoted version
6850 of strings as a result "OCSP" > "OCSP Signing" because
6851 " > SPACE. Changed script to store unquoted versions of
6852 names and add quotes on output. It was also omitting some
6853 names from the lookup table if they were given a default
6854 value (that is if SN is missing it is given the same
6855 value as LN and vice versa), these are now added on the
6856 grounds that if an object has a name we should be able to
6857 look it up. Finally added warning output when duplicate
6858 short or long names are found.
6861 *) Changes needed for Tandem NSK.
6862 [Scott Uroff <scott@xypro.com>]
6864 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6865 RSA_padding_check_SSLv23(), special padding was never detected
6866 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6867 version rollback attacks was not effective.
6869 In s23_clnt.c, don't use special rollback-attack detection padding
6870 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6871 client; similarly, in s23_srvr.c, don't do the rollback check if
6872 SSL 2.0 is the only protocol enabled in the server.
6875 *) Make it possible to get hexdumps of unprintable data with 'openssl
6876 asn1parse'. By implication, the functions ASN1_parse_dump() and
6877 BIO_dump_indent() are added.
6880 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6881 these print out strings and name structures based on various
6882 flags including RFC2253 support and proper handling of
6883 multibyte characters. Added options to the 'x509' utility
6884 to allow the various flags to be set.
6887 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6888 Also change the functions X509_cmp_current_time() and
6889 X509_gmtime_adj() work with an ASN1_TIME structure,
6890 this will enable certificates using GeneralizedTime in validity
6891 dates to be checked.
6894 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6895 negative public key encodings) on by default,
6896 NO_NEG_PUBKEY_BUG can be set to disable it.
6899 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6900 content octets. An i2c_ASN1_OBJECT is unnecessary because
6901 the encoding can be trivially obtained from the structure.
6904 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6905 not read locks (CRYPTO_r_[un]lock).
6908 *) A first attempt at creating official support for shared
6909 libraries through configuration. I've kept it so the
6910 default is static libraries only, and the OpenSSL programs
6911 are always statically linked for now, but there are
6912 preparations for dynamic linking in place.
6913 This has been tested on Linux and Tru64.
6916 *) Randomness polling function for Win9x, as described in:
6917 Peter Gutmann, Software Generation of Practically Strong
6921 *) Fix so PRNG is seeded in req if using an already existing
6925 *) New options to smime application. -inform and -outform
6926 allow alternative formats for the S/MIME message including
6927 PEM and DER. The -content option allows the content to be
6928 specified separately. This should allow things like Netscape
6929 form signing output easier to verify.
6932 *) Fix the ASN1 encoding of tags using the 'long form'.
6935 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6936 STRING types. These convert content octets to and from the
6937 underlying type. The actual tag and length octets are
6938 already assumed to have been read in and checked. These
6939 are needed because all other string types have virtually
6940 identical handling apart from the tag. By having versions
6941 of the ASN1 functions that just operate on content octets
6942 IMPLICIT tagging can be handled properly. It also allows
6943 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6944 and ASN1_INTEGER are identical apart from the tag.
6947 *) Change the handling of OID objects as follows:
6949 - New object identifiers are inserted in objects.txt, following
6950 the syntax given in objects.README.
6951 - objects.pl is used to process obj_mac.num and create a new
6953 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6956 This is currently kind of a hack, and the perl code in objects.pl
6957 isn't very elegant, but it works as I intended. The simplest way
6958 to check that it worked correctly is to look in obj_dat.h and
6959 check the array nid_objs and make sure the objects haven't moved
6960 around (this is important!). Additions are OK, as well as
6961 consistent name changes.
6964 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6967 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6968 The given file adds to whatever has already been seeded into the
6969 random pool through the RANDFILE configuration file option or
6970 environment variable, or the default random state file.
6973 *) mkstack.pl now sorts each macro group into lexical order.
6974 Previously the output order depended on the order the files
6975 appeared in the directory, resulting in needless rewriting
6979 *) Patches to make OpenSSL compile under Win32 again. Mostly
6980 work arounds for the VC++ problem that it treats func() as
6981 func(void). Also stripped out the parts of mkdef.pl that
6982 added extra typesafe functions: these no longer exist.
6985 *) Reorganisation of the stack code. The macros are now all
6986 collected in safestack.h . Each macro is defined in terms of
6987 a "stack macro" of the form SKM_<name>(type, a, b). The
6988 DEBUG_SAFESTACK is now handled in terms of function casts,
6989 this has the advantage of retaining type safety without the
6990 use of additional functions. If DEBUG_SAFESTACK is not defined
6991 then the non typesafe macros are used instead. Also modified the
6992 mkstack.pl script to handle the new form. Needs testing to see
6993 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6994 the default if no major problems. Similar behaviour for ASN1_SET_OF
6995 and PKCS12_STACK_OF.
6998 *) When some versions of IIS use the 'NET' form of private key the
6999 key derivation algorithm is different. Normally MD5(password) is
7000 used as a 128 bit RC4 key. In the modified case
7001 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7002 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7003 as the old Netscape_RSA functions except they have an additional
7004 'sgckey' parameter which uses the modified algorithm. Also added
7005 an -sgckey command line option to the rsa utility. Thanks to
7006 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7007 algorithm to openssl-dev.
7010 *) The evp_local.h macros were using 'c.##kname' which resulted in
7011 invalid expansion on some systems (SCO 5.0.5 for example).
7012 Corrected to 'c.kname'.
7013 [Phillip Porch <root@theporch.com>]
7015 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7016 a STACK of email addresses from a certificate or request, these look
7017 in the subject name and the subject alternative name extensions and
7018 omit any duplicate addresses.
7021 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7022 This makes DSA verification about 2 % faster.
7025 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7026 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7027 plus overhead for 1024 bit moduli).
7028 This makes exponentiations about 0.5 % faster for 1024 bit
7029 exponents (as measured by "openssl speed rsa2048").
7032 *) Rename memory handling macros to avoid conflicts with other
7034 Malloc => OPENSSL_malloc
7035 Malloc_locked => OPENSSL_malloc_locked
7036 Realloc => OPENSSL_realloc
7037 Free => OPENSSL_free
7040 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7041 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7044 *) CygWin32 support.
7045 [John Jarvie <jjarvie@newsguy.com>]
7047 *) The type-safe stack code has been rejigged. It is now only compiled
7048 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7049 by default all type-specific stack functions are "#define"d back to
7050 standard stack functions. This results in more streamlined output
7051 but retains the type-safety checking possibilities of the original
7055 *) The STACK code has been cleaned up, and certain type declarations
7056 that didn't make a lot of sense have been brought in line. This has
7057 also involved a cleanup of sorts in safestack.h to more correctly
7058 map type-safe stack functions onto their plain stack counterparts.
7059 This work has also resulted in a variety of "const"ifications of
7060 lots of the code, especially "_cmp" operations which should normally
7061 be prototyped with "const" parameters anyway.
7064 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7065 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7066 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7067 where all of 'md' is used each time the PRNG is used, but 'state'
7068 is used only indexed by a cyclic counter. As entropy may not be
7069 well distributed from the beginning, 'md' is important as a
7070 chaining variable. However, the output function chains only half
7071 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7072 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7073 in all of 'state' being rewritten, with the new values depending
7074 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7077 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7078 the handshake is continued after ssl_verify_cert_chain();
7079 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7080 can lead to 'unexplainable' connection aborts later.
7081 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7083 *) Major EVP API cipher revision.
7084 Add hooks for extra EVP features. This allows various cipher
7085 parameters to be set in the EVP interface. Support added for variable
7086 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7087 setting of RC2 and RC5 parameters.
7089 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7092 Remove lots of duplicated code from the EVP library. For example *every*
7093 cipher init() function handles the 'iv' in the same way according to the
7094 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7095 for CFB and OFB modes they zero ctx->num.
7097 New functionality allows removal of S/MIME code RC2 hack.
7099 Most of the routines have the same form and so can be declared in terms
7102 By shifting this to the top level EVP_CipherInit() it can be removed from
7103 all individual ciphers. If the cipher wants to handle IVs or keys
7104 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7107 Change lots of functions like EVP_EncryptUpdate() to now return a
7108 value: although software versions of the algorithms cannot fail
7109 any installed hardware versions can.
7112 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7113 this option is set, tolerate broken clients that send the negotiated
7114 protocol version number instead of the requested protocol version
7118 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7119 i.e. non-zero for export ciphersuites, zero otherwise.
7120 Previous versions had this flag inverted, inconsistent with
7121 rsa_tmp_cb (..._TMP_RSA_CB).
7122 [Bodo Moeller; problem reported by Amit Chopra]
7124 *) Add missing DSA library text string. Work around for some IIS
7125 key files with invalid SEQUENCE encoding.
7128 *) Add a document (doc/standards.txt) that list all kinds of standards
7129 and so on that are implemented in OpenSSL.
7132 *) Enhance c_rehash script. Old version would mishandle certificates
7133 with the same subject name hash and wouldn't handle CRLs at all.
7134 Added -fingerprint option to crl utility, to support new c_rehash
7138 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7141 *) Fix for SSL server purpose checking. Server checking was
7142 rejecting certificates which had extended key usage present
7143 but no ssl client purpose.
7144 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7146 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7147 is a little unclear about how a blank password is handled.
7148 Since the password in encoded as a BMPString with terminating
7149 double NULL a zero length password would end up as just the
7150 double NULL. However no password at all is different and is
7151 handled differently in the PKCS#12 key generation code. NS
7152 treats a blank password as zero length. MSIE treats it as no
7153 password on export: but it will try both on import. We now do
7154 the same: PKCS12_parse() tries zero length and no password if
7155 the password is set to "" or NULL (NULL is now a valid password:
7156 it wasn't before) as does the pkcs12 application.
7159 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7160 perror when PEM_read_bio_X509_REQ fails, the error message must
7161 be obtained from the error queue.
7164 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7165 it in ERR_remove_state if appropriate, and change ERR_get_state
7166 accordingly to avoid race conditions (this is necessary because
7167 thread_hash is no longer constant once set).
7170 *) Bugfix for linux-elf makefile.one.
7173 *) RSA_get_default_method() will now cause a default
7174 RSA_METHOD to be chosen if one doesn't exist already.
7175 Previously this was only set during a call to RSA_new()
7176 or RSA_new_method(NULL) meaning it was possible for
7177 RSA_get_default_method() to return NULL.
7180 *) Added native name translation to the existing DSO code
7181 that will convert (if the flag to do so is set) filenames
7182 that are sufficiently small and have no path information
7183 into a canonical native form. Eg. "blah" converted to
7184 "libblah.so" or "blah.dll" etc.
7187 *) New function ERR_error_string_n(e, buf, len) which is like
7188 ERR_error_string(e, buf), but writes at most 'len' bytes
7189 including the 0 terminator. For ERR_error_string_n, 'buf'
7191 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7193 *) CONF library reworked to become more general. A new CONF
7194 configuration file reader "class" is implemented as well as a
7195 new functions (NCONF_*, for "New CONF") to handle it. The now
7196 old CONF_* functions are still there, but are reimplemented to
7197 work in terms of the new functions. Also, a set of functions
7198 to handle the internal storage of the configuration data is
7199 provided to make it easier to write new configuration file
7200 reader "classes" (I can definitely see something reading a
7201 configuration file in XML format, for example), called _CONF_*,
7202 or "the configuration storage API"...
7204 The new configuration file reading functions are:
7206 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7207 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7209 NCONF_default, NCONF_WIN32
7211 NCONF_dump_fp, NCONF_dump_bio
7213 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7214 NCONF_new creates a new CONF object. This works in the same way
7215 as other interfaces in OpenSSL, like the BIO interface.
7216 NCONF_dump_* dump the internal storage of the configuration file,
7217 which is useful for debugging. All other functions take the same
7218 arguments as the old CONF_* functions wth the exception of the
7219 first that must be a `CONF *' instead of a `LHASH *'.
7221 To make it easer to use the new classes with the old CONF_* functions,
7222 the function CONF_set_default_method is provided.
7225 *) Add '-tls1' option to 'openssl ciphers', which was already
7226 mentioned in the documentation but had not been implemented.
7227 (This option is not yet really useful because even the additional
7228 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7231 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7232 OpenSSL-based applications) load shared libraries and bind to
7233 them in a portable way.
7234 [Geoff Thorpe, with contributions from Richard Levitte]
7236 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7238 *) Make sure _lrotl and _lrotr are only used with MSVC.
7240 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7241 (the default implementation of RAND_status).
7243 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7244 to '-clrext' (= clear extensions), as intended and documented.
7245 [Bodo Moeller; inconsistency pointed out by Michael Attili
7248 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7249 was larger than the MD block size.
7250 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7252 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7253 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7254 using the passed key: if the passed key was a private key the result
7255 of X509_print(), for example, would be to print out all the private key
7259 *) des_quad_cksum() byte order bug fix.
7260 [Ulf Möller, using the problem description in krb4-0.9.7, where
7261 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7263 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7265 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7267 *) For easily testing in shell scripts whether some command
7268 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7269 returns with exit code 0 iff no command of the given name is available.
7270 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7271 the output goes to stdout and nothing is printed to stderr.
7272 Additional arguments are always ignored.
7274 Since for each cipher there is a command of the same name,
7275 the 'no-cipher' compilation switches can be tested this way.
7277 ('openssl no-XXX' is not able to detect pseudo-commands such
7278 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7281 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7284 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7285 is set; it will be thrown away anyway because each handshake creates
7287 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7288 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7289 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7290 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7293 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7294 'Q' and 'R' lose their special meanings (quit/renegotiate).
7295 This is part of what -quiet does; unlike -quiet, -ign_eof
7296 does not suppress any output.
7299 *) Add compatibility options to the purpose and trust code. The
7300 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7301 accepts a certificate or CA, this was the previous behaviour,
7302 with all the associated security issues.
7304 X509_TRUST_COMPAT is the old trust behaviour: only and
7305 automatically trust self signed roots in certificate store. A
7306 new trust setting X509_TRUST_DEFAULT is used to specify that
7307 a purpose has no associated trust setting and it should instead
7308 use the value in the default purpose.
7311 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7312 and fix a memory leak.
7315 *) In util/mkerr.pl (which implements 'make errors'), preserve
7316 reason strings from the previous version of the .c file, as
7317 the default to have only downcase letters (and digits) in
7318 automatically generated reasons codes is not always appropriate.
7321 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7322 using strerror. Previously, ERR_reason_error_string() returned
7323 library names as reason strings for SYSerr; but SYSerr is a special
7324 case where small numbers are errno values, not library numbers.
7327 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7328 converts DSA parameters into DH parameters. (When creating parameters,
7329 DSA_generate_parameters is used.)
7332 *) Include 'length' (recommended exponent length) in C code generated
7333 by 'openssl dhparam -C'.
7336 *) The second argument to set_label in perlasm was already being used
7337 so couldn't be used as a "file scope" flag. Moved to third argument
7341 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7342 instead of RAND_bytes for encryption IVs and salts.
7345 *) Include RAND_status() into RAND_METHOD instead of implementing
7346 it only for md_rand.c Otherwise replacing the PRNG by calling
7347 RAND_set_rand_method would be impossible.
7350 *) Don't let DSA_generate_key() enter an infinite loop if the random
7351 number generation fails.
7354 *) New 'rand' application for creating pseudo-random output.
7357 *) Added configuration support for Linux/IA64
7358 [Rolf Haberrecker <rolf@suse.de>]
7360 *) Assembler module support for Mingw32.
7363 *) Shared library support for HPUX (in shlib/).
7364 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7366 *) Shared library support for Solaris gcc.
7367 [Lutz Behnke <behnke@trustcenter.de>]
7369 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7371 *) PKCS7_encrypt() was adding text MIME headers twice because they
7372 were added manually and by SMIME_crlf_copy().
7375 *) In bntest.c don't call BN_rand with zero bits argument.
7376 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7378 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7379 case was implemented. This caused BN_div_recp() to fail occasionally.
7382 *) Add an optional second argument to the set_label() in the perl
7383 assembly language builder. If this argument exists and is set
7384 to 1 it signals that the assembler should use a symbol whose
7385 scope is the entire file, not just the current function. This
7386 is needed with MASM which uses the format label:: for this scope.
7387 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7389 *) Change the ASN1 types so they are typedefs by default. Before
7390 almost all types were #define'd to ASN1_STRING which was causing
7391 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7395 *) Change names of new functions to the new get1/get0 naming
7396 convention: After 'get1', the caller owns a reference count
7397 and has to call ..._free; 'get0' returns a pointer to some
7398 data structure without incrementing reference counters.
7399 (Some of the existing 'get' functions increment a reference
7400 counter, some don't.)
7401 Similarly, 'set1' and 'add1' functions increase reference
7402 counters or duplicate objects.
7405 *) Allow for the possibility of temp RSA key generation failure:
7406 the code used to assume it always worked and crashed on failure.
7409 *) Fix potential buffer overrun problem in BIO_printf().
7410 [Ulf Möller, using public domain code by Patrick Powell; problem
7411 pointed out by David Sacerdote <das33@cornell.edu>]
7413 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7414 RAND_egd() and RAND_status(). In the command line application,
7415 the EGD socket can be specified like a seed file using RANDFILE
7419 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7420 Some CAs (e.g. Verisign) distribute certificates in this form.
7423 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7424 list to exclude them. This means that no special compilation option
7425 is needed to use anonymous DH: it just needs to be included in the
7429 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7430 EVP_MD_type. The old functionality is available in a new macro called
7431 EVP_MD_md(). Change code that uses it and update docs.
7434 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7435 where the 'void *' argument is replaced by a function pointer argument.
7436 Previously 'void *' was abused to point to functions, which works on
7437 many platforms, but is not correct. As these functions are usually
7438 called by macros defined in OpenSSL header files, most source code
7439 should work without changes.
7442 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7443 sections with information on -D... compiler switches used for
7444 compiling the library so that applications can see them. To enable
7445 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7446 must be defined. E.g.,
7447 #define OPENSSL_ALGORITHM_DEFINES
7448 #include <openssl/opensslconf.h>
7449 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7450 [Richard Levitte, Ulf and Bodo Möller]
7452 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7456 *) Change the 'other' type in certificate aux info to a STACK_OF
7457 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7458 the required ASN1 format: arbitrary types determined by an OID.
7461 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7462 argument to 'req'. This is not because the function is newer or
7463 better than others it just uses the work 'NEW' in the certificate
7464 request header lines. Some software needs this.
7467 *) Reorganise password command line arguments: now passwords can be
7468 obtained from various sources. Delete the PEM_cb function and make
7469 it the default behaviour: i.e. if the callback is NULL and the
7470 usrdata argument is not NULL interpret it as a null terminated pass
7471 phrase. If usrdata and the callback are NULL then the pass phrase
7472 is prompted for as usual.
7475 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7476 the support is automatically enabled. The resulting binaries will
7477 autodetect the card and use it if present.
7478 [Ben Laurie and Compaq Inc.]
7480 *) Work around for Netscape hang bug. This sends certificate request
7481 and server done in one record. Since this is perfectly legal in the
7482 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7483 the bugs/SSLv3 entry for more info.
7486 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7489 *) Add -rand argument to smime and pkcs12 applications and read/write
7493 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7496 *) Add command line password options to the remaining applications.
7499 *) Bug fix for BN_div_recp() for numerators with an even number of
7503 *) More tests in bntest.c, and changed test_bn output.
7506 *) ./config recognizes MacOS X now.
7509 *) Bug fix for BN_div() when the first words of num and divsor are
7510 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7513 *) Add support for various broken PKCS#8 formats, and command line
7514 options to produce them.
7517 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7518 get temporary BIGNUMs from a BN_CTX.
7521 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7525 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7526 include a #define from the old name to the new. The original intent
7527 was that statically linked binaries could for example just call
7528 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7529 link with digests. This never worked becayse SSLeay_add_all_digests()
7530 and SSLeay_add_all_ciphers() were in the same source file so calling
7531 one would link with the other. They are now in separate source files.
7534 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7537 *) Use a less unusual form of the Miller-Rabin primality test (it used
7538 a binary algorithm for exponentiation integrated into the Miller-Rabin
7539 loop, our standard modexp algorithms are faster).
7542 *) Support for the EBCDIC character set completed.
7543 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7545 *) Source code cleanups: use const where appropriate, eliminate casts,
7546 use void * instead of char * in lhash.
7549 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7550 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7551 this the server could overwrite ephemeral keys that the client
7555 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7556 using 50 iterations of the Rabin-Miller test.
7558 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7559 iterations of the Rabin-Miller test as required by the appendix
7560 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7561 As BN_is_prime_fasttest includes trial division, DSA parameter
7562 generation becomes much faster.
7564 This implies a change for the callback functions in DSA_is_prime
7565 and DSA_generate_parameters: The callback function is called once
7566 for each positive witness in the Rabin-Miller test, not just
7567 occasionally in the inner loop; and the parameters to the
7568 callback function now provide an iteration count for the outer
7569 loop rather than for the current invocation of the inner loop.
7570 DSA_generate_parameters additionally can call the callback
7571 function with an 'iteration count' of -1, meaning that a
7572 candidate has passed the trial division test (when q is generated
7573 from an application-provided seed, trial division is skipped).
7576 *) New function BN_is_prime_fasttest that optionally does trial
7577 division before starting the Rabin-Miller test and has
7578 an additional BN_CTX * argument (whereas BN_is_prime always
7579 has to allocate at least one BN_CTX).
7580 'callback(1, -1, cb_arg)' is called when a number has passed the
7581 trial division stage.
7584 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7588 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7591 *) New function BN_pseudo_rand().
7594 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7595 bignum version of BN_from_montgomery() with the working code from
7596 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7600 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7601 made it impossible to use the same SSL_SESSION data structure in
7602 SSL2 clients in multiple threads.
7605 *) The return value of RAND_load_file() no longer counts bytes obtained
7606 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7607 to seed the PRNG (previously an explicit byte count was required).
7608 [Ulf Möller, Bodo Möller]
7610 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7611 used (char *) instead of (void *) and had casts all over the place.
7614 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7617 *) Retain source code compatibility for BN_prime_checks macro:
7618 BN_is_prime(..., BN_prime_checks, ...) now uses
7619 BN_prime_checks_for_size to determine the appropriate number of
7620 Rabin-Miller iterations.
7623 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7624 DH_CHECK_P_NOT_SAFE_PRIME.
7625 (Check if this is true? OpenPGP calls them "strong".)
7628 *) Merge the functionality of "dh" and "gendh" programs into a new program
7629 "dhparam". The old programs are retained for now but will handle DH keys
7630 (instead of parameters) in future.
7633 *) Make the ciphers, s_server and s_client programs check the return values
7634 when a new cipher list is set.
7637 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7638 ciphers. Before when the 56bit ciphers were enabled the sorting was
7641 The syntax for the cipher sorting has been extended to support sorting by
7642 cipher-strength (using the strength_bits hard coded in the tables).
7643 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7645 Fix a bug in the cipher-command parser: when supplying a cipher command
7646 string with an "undefined" symbol (neither command nor alphanumeric
7647 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7648 an error is flagged.
7650 Due to the strength-sorting extension, the code of the
7651 ssl_create_cipher_list() function was completely rearranged. I hope that
7652 the readability was also increased :-)
7653 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7655 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7656 for the first serial number and places 2 in the serial number file. This
7657 avoids problems when the root CA is created with serial number zero and
7658 the first user certificate has the same issuer name and serial number
7662 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7663 the new code. Add documentation for this stuff.
7666 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7667 X509_*() to X509at_*() on the grounds that they don't handle X509
7668 structures and behave in an analagous way to the X509v3 functions:
7669 they shouldn't be called directly but wrapper functions should be used
7672 So we also now have some wrapper functions that call the X509at functions
7673 when passed certificate requests. (TO DO: similar things can be done with
7674 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7675 things. Some of these need some d2i or i2d and print functionality
7676 because they handle more complex structures.)
7679 *) Add missing #ifndefs that caused missing symbols when building libssl
7680 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7681 NO_RSA in ssl/s2*.c.
7682 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7684 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7685 has a return value which indicates the quality of the random data
7686 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7687 error queue. New function RAND_pseudo_bytes() generates output that is
7688 guaranteed to be unique but not unpredictable. RAND_add is like
7689 RAND_seed, but takes an extra argument for an entropy estimate
7690 (RAND_seed always assumes full entropy).
7693 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7694 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7695 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7696 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7697 false-positive rate of at most 2^-80 for random input.
7700 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7703 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7704 in the 0.9.5 release), this returns the chain
7705 from an X509_CTX structure with a dup of the stack and all
7706 the X509 reference counts upped: so the stack will exist
7707 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7710 Also make SSL_SESSION_print() print out the verify return
7714 *) Add manpage for the pkcs12 command. Also change the default
7715 behaviour so MAC iteration counts are used unless the new
7716 -nomaciter option is used. This improves file security and
7717 only older versions of MSIE (4.0 for example) need it.
7720 *) Honor the no-xxx Configure options when creating .DEF files.
7723 *) Add PKCS#10 attributes to field table: challengePassword,
7724 unstructuredName and unstructuredAddress. These are taken from
7725 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7726 international characters are used.
7728 More changes to X509_ATTRIBUTE code: allow the setting of types
7729 based on strings. Remove the 'loc' parameter when adding
7730 attributes because these will be a SET OF encoding which is sorted
7734 *) Initial changes to the 'req' utility to allow request generation
7735 automation. This will allow an application to just generate a template
7736 file containing all the field values and have req construct the
7739 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7740 used all over the place including certificate requests and PKCS#7
7741 structures. They are currently handled manually where necessary with
7742 some primitive wrappers for PKCS#7. The new functions behave in a
7743 manner analogous to the X509 extension functions: they allow
7744 attributes to be looked up by NID and added.
7746 Later something similar to the X509V3 code would be desirable to
7747 automatically handle the encoding, decoding and printing of the
7748 more complex types. The string types like challengePassword can
7749 be handled by the string table functions.
7751 Also modified the multi byte string table handling. Now there is
7752 a 'global mask' which masks out certain types. The table itself
7753 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7754 is useful when for example there is only one permissible type
7755 (as in countryName) and using the mask might result in no valid
7759 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7760 SSL_get_peer_finished to allow applications to obtain the latest
7761 Finished messages sent to the peer or expected from the peer,
7762 respectively. (SSL_get_peer_finished is usually the Finished message
7763 actually received from the peer, otherwise the protocol will be aborted.)
7765 As the Finished message are message digests of the complete handshake
7766 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7767 be used for external authentication procedures when the authentication
7768 provided by SSL/TLS is not desired or is not enough.
7771 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7772 the host supports BWX extension and if Compaq C is present on the
7773 $PATH. Just exploiting of the BWX extension results in 20-30%
7774 performance kick for some algorithms, e.g. DES and RC4 to mention
7775 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7779 *) Add support for MS "fast SGC". This is arguably a violation of the
7780 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7781 weak crypto and after checking the certificate is SGC a second one
7782 with strong crypto. MS SGC stops the first handshake after receiving
7783 the server certificate message and sends a second client hello. Since
7784 a server will typically do all the time consuming operations before
7785 expecting any further messages from the client (server key exchange
7786 is the most expensive) there is little difference between the two.
7788 To get OpenSSL to support MS SGC we have to permit a second client
7789 hello message after we have sent server done. In addition we have to
7790 reset the MAC if we do get this second client hello.
7793 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7794 if a DER encoded private key is RSA or DSA traditional format. Changed
7795 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7796 format DER encoded private key. Newer code should use PKCS#8 format which
7797 has the key type encoded in the ASN1 structure. Added DER private key
7798 support to pkcs8 application.
7801 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7802 ciphersuites has been selected (as required by the SSL 3/TLS 1
7803 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7804 is set, we interpret this as a request to violate the specification
7805 (the worst that can happen is a handshake failure, and 'correct'
7806 behaviour would result in a handshake failure anyway).
7809 *) In SSL_CTX_add_session, take into account that there might be multiple
7810 SSL_SESSION structures with the same session ID (e.g. when two threads
7811 concurrently obtain them from an external cache).
7812 The internal cache can handle only one SSL_SESSION with a given ID,
7813 so if there's a conflict, we now throw out the old one to achieve
7817 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7818 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7819 some routines that use cipher OIDs: some ciphers do not have OIDs
7820 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7824 *) Simplify the trust setting structure and code. Now we just have
7825 two sequences of OIDs for trusted and rejected settings. These will
7826 typically have values the same as the extended key usage extension
7827 and any application specific purposes.
7829 The trust checking code now has a default behaviour: it will just
7830 check for an object with the same NID as the passed id. Functions can
7831 be provided to override either the default behaviour or the behaviour
7832 for a given id. SSL client, server and email already have functions
7833 in place for compatibility: they check the NID and also return "trusted"
7834 if the certificate is self signed.
7837 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7838 traditional format into an EVP_PKEY structure.
7841 *) Add a password callback function PEM_cb() which either prompts for
7842 a password if usr_data is NULL or otherwise assumes it is a null
7843 terminated password. Allow passwords to be passed on command line
7844 environment or config files in a few more utilities.
7847 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7848 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7849 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7850 Update documentation.
7853 *) Support for ASN1 "NULL" type. This could be handled before by using
7854 ASN1_TYPE but there wasn't any function that would try to read a NULL
7855 and produce an error if it couldn't. For compatibility we also have
7856 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7857 don't allocate anything because they don't need to.
7860 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7862 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7864 *) Rebuild of the memory allocation routines used by OpenSSL code and
7865 possibly others as well. The purpose is to make an interface that
7866 provide hooks so anyone can build a separate set of allocation and
7867 deallocation routines to be used by OpenSSL, for example memory
7868 pool implementations, or something else, which was previously hard
7869 since Malloc(), Realloc() and Free() were defined as macros having
7870 the values malloc, realloc and free, respectively (except for Win32
7871 compilations). The same is provided for memory debugging code.
7872 OpenSSL already comes with functionality to find memory leaks, but
7873 this gives people a chance to debug other memory problems.
7875 With these changes, a new set of functions and macros have appeared:
7877 CRYPTO_set_mem_debug_functions() [F]
7878 CRYPTO_get_mem_debug_functions() [F]
7879 CRYPTO_dbg_set_options() [F]
7880 CRYPTO_dbg_get_options() [F]
7881 CRYPTO_malloc_debug_init() [M]
7883 The memory debug functions are NULL by default, unless the library
7884 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7885 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7886 gives the standard debugging functions that come with OpenSSL) or
7887 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7888 provided by the library user) must be used. When the standard
7889 debugging functions are used, CRYPTO_dbg_set_options can be used to
7890 request additional information:
7891 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7892 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7894 Also, things like CRYPTO_set_mem_functions will always give the
7895 expected result (the new set of functions is used for allocation
7896 and deallocation) at all times, regardless of platform and compiler
7899 To finish it up, some functions that were never use in any other
7900 way than through macros have a new API and new semantic:
7903 CRYPTO_dbg_realloc()
7906 All macros of value have retained their old syntax.
7907 [Richard Levitte and Bodo Moeller]
7909 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7910 ordering of SMIMECapabilities wasn't in "strength order" and there
7911 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7915 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7916 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7917 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7919 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7920 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7921 functionality to handle multipart/signed properly) and a utility
7922 called 'smime' to call all this stuff. This is based on code I
7923 originally wrote for Celo who have kindly allowed it to be
7924 included in OpenSSL.
7927 *) Add variants des_set_key_checked and des_set_key_unchecked of
7928 des_set_key (aka des_key_sched). Global variable des_check_key
7929 decides which of these is called by des_set_key; this way
7930 des_check_key behaves as it always did, but applications and
7931 the library itself, which was buggy for des_check_key == 1,
7932 have a cleaner way to pick the version they need.
7935 *) New function PKCS12_newpass() which changes the password of a
7939 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7940 dynamic mix. In both cases the ids can be used as an index into the
7941 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7942 functions so they accept a list of the field values and the
7943 application doesn't need to directly manipulate the X509_TRUST
7947 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7951 *) Modify the way the V3 extension code looks up extensions. This now
7952 works in a similar way to the object code: we have some "standard"
7953 extensions in a static table which is searched with OBJ_bsearch()
7954 and the application can add dynamic ones if needed. The file
7955 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7956 updated whenever a new extension is added to the core code and kept
7957 in ext_nid order. There is a simple program 'tabtest.c' which checks
7958 this. New extensions are not added too often so this file can readily
7959 be maintained manually.
7961 There are two big advantages in doing things this way. The extensions
7962 can be looked up immediately and no longer need to be "added" using
7963 X509V3_add_standard_extensions(): this function now does nothing.
7964 [Side note: I get *lots* of email saying the extension code doesn't
7965 work because people forget to call this function]
7966 Also no dynamic allocation is done unless new extensions are added:
7967 so if we don't add custom extensions there is no need to call
7968 X509V3_EXT_cleanup().
7971 *) Modify enc utility's salting as follows: make salting the default. Add a
7972 magic header, so unsalted files fail gracefully instead of just decrypting
7973 to garbage. This is because not salting is a big security hole, so people
7974 should be discouraged from doing it.
7977 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7978 digest to be passed on the command line but it only used this
7979 parameter when signing a certificate. Modified so all relevant
7980 operations are affected by the digest parameter including the
7981 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7982 DSA key was used because it didn't fix the digest.
7985 *) Initial certificate chain verify code. Currently tests the untrusted
7986 certificates for consistency with the verify purpose (which is set
7987 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7989 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7990 this is because it will reject chains with invalid extensions whereas
7991 every previous version of OpenSSL and SSLeay made no checks at all.
7993 Trust code: checks the root CA for the relevant trust settings. Trust
7994 settings have an initial value consistent with the verify purpose: e.g.
7995 if the verify purpose is for SSL client use it expects the CA to be
7996 trusted for SSL client use. However the default value can be changed to
7997 permit custom trust settings: one example of this would be to only trust
7998 certificates from a specific "secure" set of CAs.
8000 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8001 which should be used for version portability: especially since the
8002 verify structure is likely to change more often now.
8004 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8005 to set them. If not set then assume SSL clients will verify SSL servers
8008 Two new options to the verify program: -untrusted allows a set of
8009 untrusted certificates to be passed in and -purpose which sets the
8010 intended purpose of the certificate. If a purpose is set then the
8011 new chain verify code is used to check extension consistency.
8014 *) Support for the authority information access extension.
8017 *) Modify RSA and DSA PEM read routines to transparently handle
8018 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8019 public keys in a format compatible with certificate
8020 SubjectPublicKeyInfo structures. Unfortunately there were already
8021 functions called *_PublicKey_* which used various odd formats so
8022 these are retained for compatibility: however the DSA variants were
8023 never in a public release so they have been deleted. Changed dsa/rsa
8024 utilities to handle the new format: note no releases ever handled public
8025 keys so we should be OK.
8027 The primary motivation for this change is to avoid the same fiasco
8028 that dogs private keys: there are several incompatible private key
8029 formats some of which are standard and some OpenSSL specific and
8030 require various evil hacks to allow partial transparent handling and
8031 even then it doesn't work with DER formats. Given the option anything
8032 other than PKCS#8 should be dumped: but the other formats have to
8033 stay in the name of compatibility.
8035 With public keys and the benefit of hindsight one standard format
8036 is used which works with EVP_PKEY, RSA or DSA structures: though
8037 it clearly returns an error if you try to read the wrong kind of key.
8039 Added a -pubkey option to the 'x509' utility to output the public key.
8040 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8041 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8042 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8043 that do the same as the EVP_PKEY_assign_*() except they up the
8044 reference count of the added key (they don't "swallow" the
8048 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8049 CRLs would fail if the file contained no certificates or no CRLs:
8050 added a new function to read in both types and return the number
8051 read: this means that if none are read it will be an error. The
8052 DER versions of the certificate and CRL reader would always fail
8053 because it isn't possible to mix certificates and CRLs in DER format
8054 without choking one or the other routine. Changed this to just read
8055 a certificate: this is the best we can do. Also modified the code
8056 in apps/verify.c to take notice of return codes: it was previously
8057 attempting to read in certificates from NULL pointers and ignoring
8058 any errors: this is one reason why the cert and CRL reader seemed
8059 to work. It doesn't check return codes from the default certificate
8060 routines: these may well fail if the certificates aren't installed.
8063 *) Code to support otherName option in GeneralName.
8066 *) First update to verify code. Change the verify utility
8067 so it warns if it is passed a self signed certificate:
8068 for consistency with the normal behaviour. X509_verify
8069 has been modified to it will now verify a self signed
8070 certificate if *exactly* the same certificate appears
8071 in the store: it was previously impossible to trust a
8072 single self signed certificate. This means that:
8073 openssl verify ss.pem
8074 now gives a warning about a self signed certificate but
8075 openssl verify -CAfile ss.pem ss.pem
8079 *) For servers, store verify_result in SSL_SESSION data structure
8080 (and add it to external session representation).
8081 This is needed when client certificate verifications fails,
8082 but an application-provided verification callback (set by
8083 SSL_CTX_set_cert_verify_callback) allows accepting the session
8084 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8085 but returns 1): When the session is reused, we have to set
8086 ssl->verify_result to the appropriate error code to avoid
8088 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8090 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8091 case in PKCS7_dataInit() where the signed PKCS7 structure
8092 didn't contain any existing data because it was being created.
8093 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8095 *) Add a salt to the key derivation routines in enc.c. This
8096 forms the first 8 bytes of the encrypted file. Also add a
8097 -S option to allow a salt to be input on the command line.
8100 *) New function X509_cmp(). Oddly enough there wasn't a function
8101 to compare two certificates. We do this by working out the SHA1
8102 hash and comparing that. X509_cmp() will be needed by the trust
8106 *) SSL_get1_session() is like SSL_get_session(), but increments
8107 the reference count in the SSL_SESSION returned.
8108 [Geoff Thorpe <geoff@eu.c2.net>]
8110 *) Fix for 'req': it was adding a null to request attributes.
8111 Also change the X509_LOOKUP and X509_INFO code to handle
8112 certificate auxiliary information.
8115 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8119 *) Add the possibility to add extra information to the memory leak
8120 detecting output, to form tracebacks, showing from where each
8121 allocation was originated: CRYPTO_push_info("constant string") adds
8122 the string plus current file name and line number to a per-thread
8123 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8124 is like calling CYRPTO_pop_info() until the stack is empty.
8125 Also updated memory leak detection code to be multi-thread-safe.
8128 *) Add options -text and -noout to pkcs7 utility and delete the
8129 encryption options which never did anything. Update docs.
8132 *) Add options to some of the utilities to allow the pass phrase
8133 to be included on either the command line (not recommended on
8134 OSes like Unix) or read from the environment. Update the
8135 manpages and fix a few bugs.
8138 *) Add a few manpages for some of the openssl commands.
8141 *) Fix the -revoke option in ca. It was freeing up memory twice,
8142 leaking and not finding already revoked certificates.
8145 *) Extensive changes to support certificate auxiliary information.
8146 This involves the use of X509_CERT_AUX structure and X509_AUX
8147 functions. An X509_AUX function such as PEM_read_X509_AUX()
8148 can still read in a certificate file in the usual way but it
8149 will also read in any additional "auxiliary information". By
8150 doing things this way a fair degree of compatibility can be
8151 retained: existing certificates can have this information added
8152 using the new 'x509' options.
8154 Current auxiliary information includes an "alias" and some trust
8155 settings. The trust settings will ultimately be used in enhanced
8156 certificate chain verification routines: currently a certificate
8157 can only be trusted if it is self signed and then it is trusted
8161 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8162 The problem was that one of the replacement routines had not been working
8163 since SSLeay releases. For now the offending routine has been replaced
8164 with non-optimised assembler. Even so, this now gives around 95%
8165 performance improvement for 1024 bit RSA signs.
8168 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8169 handling. Most clients have the effective key size in bits equal to
8170 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8171 A few however don't do this and instead use the size of the decrypted key
8172 to determine the RC2 key length and the AlgorithmIdentifier to determine
8173 the effective key length. In this case the effective key length can still
8174 be 40 bits but the key length can be 168 bits for example. This is fixed
8175 by manually forcing an RC2 key into the EVP_PKEY structure because the
8176 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8177 the key length and effective key length are equal.
8180 *) Add a bunch of functions that should simplify the creation of
8181 X509_NAME structures. Now you should be able to do:
8182 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8183 and have it automatically work out the correct field type and fill in
8184 the structures. The more adventurous can try:
8185 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8186 and it will (hopefully) work out the correct multibyte encoding.
8189 *) Change the 'req' utility to use the new field handling and multibyte
8190 copy routines. Before the DN field creation was handled in an ad hoc
8191 way in req, ca, and x509 which was rather broken and didn't support
8192 BMPStrings or UTF8Strings. Since some software doesn't implement
8193 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8194 using the dirstring_type option. See the new comment in the default
8195 openssl.cnf for more info.
8198 *) Make crypto/rand/md_rand.c more robust:
8199 - Assure unique random numbers after fork().
8200 - Make sure that concurrent threads access the global counter and
8201 md serializably so that we never lose entropy in them
8202 or use exactly the same state in multiple threads.
8203 Access to the large state is not always serializable because
8204 the additional locking could be a performance killer, and
8205 md should be large enough anyway.
8208 *) New file apps/app_rand.c with commonly needed functionality
8209 for handling the random seed file.
8211 Use the random seed file in some applications that previously did not:
8213 dsaparam -genkey (which also ignored its '-rand' option),
8216 x509 (when signing).
8217 Except on systems with /dev/urandom, it is crucial to have a random
8218 seed file at least for key creation, DSA signing, and for DH exchanges;
8219 for RSA signatures we could do without one.
8221 gendh and gendsa (unlike genrsa) used to read only the first byte
8222 of each file listed in the '-rand' option. The function as previously
8223 found in genrsa is now in app_rand.c and is used by all programs
8224 that support '-rand'.
8227 *) In RAND_write_file, use mode 0600 for creating files;
8228 don't just chmod when it may be too late.
8231 *) Report an error from X509_STORE_load_locations
8232 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8235 *) New function ASN1_mbstring_copy() this copies a string in either
8236 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8237 into an ASN1_STRING type. A mask of permissible types is passed
8238 and it chooses the "minimal" type to use or an error if not type
8242 *) Add function equivalents to the various macros in asn1.h. The old
8243 macros are retained with an M_ prefix. Code inside the library can
8244 use the M_ macros. External code (including the openssl utility)
8245 should *NOT* in order to be "shared library friendly".
8248 *) Add various functions that can check a certificate's extensions
8249 to see if it usable for various purposes such as SSL client,
8250 server or S/MIME and CAs of these types. This is currently
8251 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8252 verification. Also added a -purpose flag to x509 utility to
8253 print out all the purposes.
8256 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8260 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8261 for, obtain and decode and extension and obtain its critical flag.
8262 This allows all the necessary extension code to be handled in a
8263 single function call.
8266 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8267 platforms. See crypto/rc4/rc4_enc.c for further details.
8270 *) New -noout option to asn1parse. This causes no output to be produced
8271 its main use is when combined with -strparse and -out to extract data
8272 from a file (which may not be in ASN.1 format).
8275 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8276 when producing the local key id.
8277 [Richard Levitte <levitte@stacken.kth.se>]
8279 *) New option -dhparam in s_server. This allows a DH parameter file to be
8280 stated explicitly. If it is not stated then it tries the first server
8281 certificate file. The previous behaviour hard coded the filename
8285 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8286 a public key to be input or output. For example:
8287 openssl rsa -in key.pem -pubout -out pubkey.pem
8288 Also added necessary DSA public key functions to handle this.
8291 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8292 in the message. This was handled by allowing
8293 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8294 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8296 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8297 to the end of the strings whereas this didn't. This would cause problems
8298 if strings read with d2i_ASN1_bytes() were later modified.
8299 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8301 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8302 data and it contains EOF it will end up returning an error. This is
8303 caused by input 46 bytes long. The cause is due to the way base64
8304 BIOs find the start of base64 encoded data. They do this by trying a
8305 trial decode on each line until they find one that works. When they
8306 do a flag is set and it starts again knowing it can pass all the
8307 data directly through the decoder. Unfortunately it doesn't reset
8308 the context it uses. This means that if EOF is reached an attempt
8309 is made to pass two EOFs through the context and this causes the
8310 resulting error. This can also cause other problems as well. As is
8311 usual with these problems it takes *ages* to find and the fix is
8312 trivial: move one line.
8313 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8315 *) Ugly workaround to get s_client and s_server working under Windows. The
8316 old code wouldn't work because it needed to select() on sockets and the
8317 tty (for keypresses and to see if data could be written). Win32 only
8318 supports select() on sockets so we select() with a 1s timeout on the
8319 sockets and then see if any characters are waiting to be read, if none
8320 are present then we retry, we also assume we can always write data to
8321 the tty. This isn't nice because the code then blocks until we've
8322 received a complete line of data and it is effectively polling the
8323 keyboard at 1s intervals: however it's quite a bit better than not
8324 working at all :-) A dedicated Windows application might handle this
8325 with an event loop for example.
8328 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8329 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8330 will be called when RSA_sign() and RSA_verify() are used. This is useful
8331 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8332 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8333 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8334 This necessitated the support of an extra signature type NID_md5_sha1
8335 for SSL signatures and modifications to the SSL library to use it instead
8336 of calling RSA_public_decrypt() and RSA_private_encrypt().
8339 *) Add new -verify -CAfile and -CApath options to the crl program, these
8340 will lookup a CRL issuers certificate and verify the signature in a
8341 similar way to the verify program. Tidy up the crl program so it
8342 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8343 less strict. It will now permit CRL extensions even if it is not
8344 a V2 CRL: this will allow it to tolerate some broken CRLs.
8347 *) Initialize all non-automatic variables each time one of the openssl
8348 sub-programs is started (this is necessary as they may be started
8349 multiple times from the "OpenSSL>" prompt).
8350 [Lennart Bang, Bodo Moeller]
8352 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8353 removing all other RSA functionality (this is what NO_RSA does). This
8354 is so (for example) those in the US can disable those operations covered
8355 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8359 *) Non-copying interface to BIO pairs.
8360 (still largely untested)
8363 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8364 ASCII string. This was handled independently in various places before.
8367 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8368 UTF8 strings a character at a time.
8371 *) Use client_version from client hello to select the protocol
8372 (s23_srvr.c) and for RSA client key exchange verification
8373 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8376 *) Add various utility functions to handle SPKACs, these were previously
8377 handled by poking round in the structure internals. Added new function
8378 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8379 print, verify and generate SPKACs. Based on an original idea from
8380 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8383 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8386 *) Allow the config file extension section to be overwritten on the
8387 command line. Based on an original idea from Massimiliano Pala
8388 <madwolf@comune.modena.it>. The new option is called -extensions
8389 and can be applied to ca, req and x509. Also -reqexts to override
8390 the request extensions in req and -crlexts to override the crl extensions
8394 *) Add new feature to the SPKAC handling in ca. Now you can include
8395 the same field multiple times by preceding it by "XXXX." for example:
8398 this is the same syntax as used in the req config file.
8401 *) Allow certificate extensions to be added to certificate requests. These
8402 are specified in a 'req_extensions' option of the req section of the
8403 config file. They can be printed out with the -text option to req but
8404 are otherwise ignored at present.
8407 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8408 data read consists of only the final block it would not decrypted because
8409 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8410 A misplaced 'break' also meant the decrypted final block might not be
8411 copied until the next read.
8414 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8415 a few extra parameters to the DH structure: these will be useful if
8416 for example we want the value of 'q' or implement X9.42 DH.
8419 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8420 provides hooks that allow the default DSA functions or functions on a
8421 "per key" basis to be replaced. This allows hardware acceleration and
8422 hardware key storage to be handled without major modification to the
8423 library. Also added low level modexp hooks and CRYPTO_EX structure and
8424 associated functions.
8427 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8428 as "read only": it can't be written to and the buffer it points to will
8429 not be freed. Reading from a read only BIO is much more efficient than
8430 a normal memory BIO. This was added because there are several times when
8431 an area of memory needs to be read from a BIO. The previous method was
8432 to create a memory BIO and write the data to it, this results in two
8433 copies of the data and an O(n^2) reading algorithm. There is a new
8434 function BIO_new_mem_buf() which creates a read only memory BIO from
8435 an area of memory. Also modified the PKCS#7 routines to use read only
8439 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8440 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8441 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8442 but a retry condition occured while trying to read the rest.
8445 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8446 NID_pkcs7_encrypted by default: this was wrong since this should almost
8447 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8448 the encrypted data type: this is a more sensible place to put it and it
8449 allows the PKCS#12 code to be tidied up that duplicated this
8453 *) Changed obj_dat.pl script so it takes its input and output files on
8454 the command line. This should avoid shell escape redirection problems
8458 *) Initial support for certificate extension requests, these are included
8459 in things like Xenroll certificate requests. Included functions to allow
8460 extensions to be obtained and added.
8463 *) -crlf option to s_client and s_server for sending newlines as
8464 CRLF (as required by many protocols).
8467 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8469 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8470 [Ralf S. Engelschall]
8472 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8473 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8475 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8479 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8480 DH parameters/keys (q is lost during that conversion, but the resulting
8481 DH parameters contain its length).
8483 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8484 much faster than DH_generate_parameters (which creates parameters
8485 where p = 2*q + 1), and also the smaller q makes DH computations
8486 much more efficient (160-bit exponentiation instead of 1024-bit
8487 exponentiation); so this provides a convenient way to support DHE
8488 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8489 utter importance to use
8490 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8492 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8493 when such DH parameters are used, because otherwise small subgroup
8494 attacks may become possible!
8497 *) Avoid memory leak in i2d_DHparams.
8500 *) Allow the -k option to be used more than once in the enc program:
8501 this allows the same encrypted message to be read by multiple recipients.
8504 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8505 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8506 it will always use the numerical form of the OID, even if it has a short
8510 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8511 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8512 otherwise bn_mod_exp was called. In the case of hardware keys for example
8513 no private key components need be present and it might store extra data
8514 in the RSA structure, which cannot be accessed from bn_mod_exp.
8515 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8516 private key operations.
8519 *) Added support for SPARC Linux.
8522 *) pem_password_cb function type incompatibly changed from
8523 typedef int pem_password_cb(char *buf, int size, int rwflag);
8525 ....(char *buf, int size, int rwflag, void *userdata);
8526 so that applications can pass data to their callbacks:
8527 The PEM[_ASN1]_{read,write}... functions and macros now take an
8528 additional void * argument, which is just handed through whenever
8529 the password callback is called.
8530 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8532 New function SSL_CTX_set_default_passwd_cb_userdata.
8534 Compatibility note: As many C implementations push function arguments
8535 onto the stack in reverse order, the new library version is likely to
8536 interoperate with programs that have been compiled with the old
8537 pem_password_cb definition (PEM_whatever takes some data that
8538 happens to be on the stack as its last argument, and the callback
8539 just ignores this garbage); but there is no guarantee whatsoever that
8542 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8543 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8544 problems not only on Windows, but also on some Unix platforms.
8545 To avoid problematic command lines, these definitions are now in an
8546 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8547 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8550 *) MIPS III/IV assembler module is reimplemented.
8553 *) More DES library cleanups: remove references to srand/rand and
8554 delete an unused file.
8557 *) Add support for the the free Netwide assembler (NASM) under Win32,
8558 since not many people have MASM (ml) and it can be hard to obtain.
8559 This is currently experimental but it seems to work OK and pass all
8560 the tests. Check out INSTALL.W32 for info.
8563 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8564 without temporary keys kept an extra copy of the server key,
8565 and connections with temporary keys did not free everything in case
8569 *) New function RSA_check_key and new openssl rsa option -check
8570 for verifying the consistency of RSA keys.
8571 [Ulf Moeller, Bodo Moeller]
8573 *) Various changes to make Win32 compile work:
8574 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8575 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8576 comparison" warnings.
8577 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8580 *) Add a debugging option to PKCS#5 v2 key generation function: when
8581 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8582 derived keys are printed to stderr.
8585 *) Copy the flags in ASN1_STRING_dup().
8586 [Roman E. Pavlov <pre@mo.msk.ru>]
8588 *) The x509 application mishandled signing requests containing DSA
8589 keys when the signing key was also DSA and the parameters didn't match.
8591 It was supposed to omit the parameters when they matched the signing key:
8592 the verifying software was then supposed to automatically use the CA's
8593 parameters if they were absent from the end user certificate.
8595 Omitting parameters is no longer recommended. The test was also
8596 the wrong way round! This was probably due to unusual behaviour in
8597 EVP_cmp_parameters() which returns 1 if the parameters match.
8598 This meant that parameters were omitted when they *didn't* match and
8599 the certificate was useless. Certificates signed with 'ca' didn't have
8601 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8603 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8604 The interface is as follows:
8605 Applications can use
8606 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8607 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8608 "off" is now the default.
8609 The library internally uses
8610 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8611 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8612 to disable memory-checking temporarily.
8614 Some inconsistent states that previously were possible (and were
8615 even the default) are now avoided.
8617 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8618 with each memory chunk allocated; this is occasionally more helpful
8619 than just having a counter.
8621 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8623 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8627 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8628 which largely parallels "options", but is for changing API behaviour,
8629 whereas "options" are about protocol behaviour.
8630 Initial "mode" flags are:
8632 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8633 a single record has been written.
8634 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8635 retries use the same buffer location.
8636 (But all of the contents must be
8640 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8643 *) Fix problems with no-hmac etc.
8644 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8646 *) New functions RSA_get_default_method(), RSA_set_method() and
8647 RSA_get_method(). These allows replacement of RSA_METHODs without having
8648 to mess around with the internals of an RSA structure.
8651 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8652 Also really enable memory leak checks in openssl.c and in some
8654 [Chad C. Mulligan, Bodo Moeller]
8656 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8657 up the length of negative integers. This has now been simplified to just
8658 store the length when it is first determined and use it later, rather
8659 than trying to keep track of where data is copied and updating it to
8661 [Steve Henson, reported by Brien Wheeler
8662 <bwheeler@authentica-security.com>]
8664 *) Add a new function PKCS7_signatureVerify. This allows the verification
8665 of a PKCS#7 signature but with the signing certificate passed to the
8666 function itself. This contrasts with PKCS7_dataVerify which assumes the
8667 certificate is present in the PKCS#7 structure. This isn't always the
8668 case: certificates can be omitted from a PKCS#7 structure and be
8669 distributed by "out of band" means (such as a certificate database).
8672 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8673 function prototypes in pem.h, also change util/mkdef.pl to add the
8674 necessary function names.
8677 *) mk1mf.pl (used by Windows builds) did not properly read the
8678 options set by Configure in the top level Makefile, and Configure
8679 was not even able to write more than one option correctly.
8680 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8683 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8684 file to be loaded from a BIO or FILE pointer. The BIO version will
8685 for example allow memory BIOs to contain config info.
8688 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8689 Whoever hopes to achieve shared-library compatibility across versions
8690 must use this, not the compile-time macro.
8691 (Exercise 0.9.4: Which is the minimum library version required by
8693 Note: All this applies only to multi-threaded programs, others don't
8697 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8698 through a BIO pair triggered the default case, i.e.
8699 SSLerr(...,SSL_R_UNKNOWN_STATE).
8702 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8703 can use the SSL library even if none of the specific BIOs is
8707 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8708 for the encoded length.
8709 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8711 *) Add initial documentation of the X509V3 functions.
8714 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8715 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8716 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8717 secure PKCS#8 private key format with a high iteration count.
8720 *) Fix determination of Perl interpreter: A perl or perl5
8721 _directory_ in $PATH was also accepted as the interpreter.
8722 [Ralf S. Engelschall]
8724 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8725 wrong with it but it was very old and did things like calling
8726 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8730 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8731 to use the new extension code.
8734 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8735 with macros. This should make it easier to change their form, add extra
8736 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8740 *) Add to configuration table a new entry that can specify an alternative
8741 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8742 according to Mark Crispin <MRC@Panda.COM>.
8746 *) DES CBC did not update the IV. Weird.
8749 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8750 Changing the behaviour of the former might break existing programs --
8751 where IV updating is needed, des_ncbc_encrypt can be used.
8754 *) When bntest is run from "make test" it drives bc to check its
8755 calculations, as well as internally checking them. If an internal check
8756 fails, it needs to cause bc to give a non-zero result or make test carries
8757 on without noticing the failure. Fixed.
8760 *) DES library cleanups.
8763 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8764 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8765 ciphers. NOTE: although the key derivation function has been verified
8766 against some published test vectors it has not been extensively tested
8767 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8771 *) Instead of "mkdir -p", which is not fully portable, use new
8772 Perl script "util/mkdir-p.pl".
8775 *) Rewrite the way password based encryption (PBE) is handled. It used to
8776 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8777 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8778 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8779 the 'parameter' field of the AlgorithmIdentifier is passed to the
8780 underlying key generation function so it must do its own ASN1 parsing.
8781 This has also changed the EVP_PBE_CipherInit() function which now has a
8782 'parameter' argument instead of literal salt and iteration count values
8783 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8786 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8787 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8788 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8789 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8790 value was just used as a "magic string" and not used directly its
8791 value doesn't matter.
8794 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8798 *) "linux-sparc64" configuration (ultrapenguin).
8799 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8800 "linux-sparc" configuration.
8801 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8803 *) config now generates no-xxx options for missing ciphers.
8806 *) Support the EBCDIC character set (work in progress).
8807 File ebcdic.c not yet included because it has a different license.
8808 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8810 *) Support BS2000/OSD-POSIX.
8811 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8813 *) Make callbacks for key generation use void * instead of char *.
8816 *) Make S/MIME samples compile (not yet tested).
8819 *) Additional typesafe stacks.
8822 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8826 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8828 *) New configuration variant "sco5-gcc".
8830 *) Updated some demos.
8831 [Sean O Riordain, Wade Scholine]
8833 *) Add missing BIO_free at exit of pkcs12 application.
8836 *) Fix memory leak in conf.c.
8839 *) Updates for Win32 to assembler version of MD5.
8842 *) Set #! path to perl in apps/der_chop to where we found it
8843 instead of using a fixed path.
8846 *) SHA library changes for irix64-mips4-cc.
8849 *) Improvements for VMS support.
8853 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8855 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8856 This also avoids the problems with SC4.2 and unpatched SC5.
8857 [Andy Polyakov <appro@fy.chalmers.se>]
8859 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8860 These are required because of the typesafe stack would otherwise break
8861 existing code. If old code used a structure member which used to be STACK
8862 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8863 sk_num or sk_value it would produce an error because the num, data members
8864 are not present in STACK_OF. Now it just produces a warning. sk_set
8865 replaces the old method of assigning a value to sk_value
8866 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8867 that does this will no longer work (and should use sk_set instead) but
8868 this could be regarded as a "questionable" behaviour anyway.
8871 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8872 correctly handle encrypted S/MIME data.
8875 *) Change type of various DES function arguments from des_cblock
8876 (which means, in function argument declarations, pointer to char)
8877 to des_cblock * (meaning pointer to array with 8 char elements),
8878 which allows the compiler to do more typechecking; it was like
8879 that back in SSLeay, but with lots of ugly casts.
8881 Introduce new type const_des_cblock.
8884 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8885 problems: find RecipientInfo structure that matches recipient certificate
8886 and initialise the ASN1 structures properly based on passed cipher.
8889 *) Belatedly make the BN tests actually check the results.
8892 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8893 to and from BNs: it was completely broken. New compilation option
8894 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8895 key elements as negative integers.
8898 *) Reorganize and speed up MD5.
8899 [Andy Polyakov <appro@fy.chalmers.se>]
8902 [Richard Levitte <richard@levitte.org>]
8904 *) New option -out to asn1parse to allow the parsed structure to be
8905 output to a file. This is most useful when combined with the -strparse
8906 option to examine the output of things like OCTET STRINGS.
8909 *) Make SSL library a little more fool-proof by not requiring any longer
8910 that SSL_set_{accept,connect}_state be called before
8911 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8912 in many applications because usually everything *appeared* to work as
8913 intended anyway -- now it really works as intended).
8916 *) Move openssl.cnf out of lib/.
8919 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8920 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8921 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8922 [Ralf S. Engelschall]
8924 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8925 handle PKCS#7 enveloped data properly.
8926 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8928 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8929 copying pointers. The cert_st handling is changed by this in
8930 various ways (and thus what used to be known as ctx->default_cert
8931 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8932 any longer when s->cert does not give us what we need).
8933 ssl_cert_instantiate becomes obsolete by this change.
8934 As soon as we've got the new code right (possibly it already is?),
8935 we have solved a couple of bugs of the earlier code where s->cert
8936 was used as if it could not have been shared with other SSL structures.
8938 Note that using the SSL API in certain dirty ways now will result
8939 in different behaviour than observed with earlier library versions:
8940 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8941 does not influence s as it used to.
8943 In order to clean up things more thoroughly, inside SSL_SESSION
8944 we don't use CERT any longer, but a new structure SESS_CERT
8945 that holds per-session data (if available); currently, this is
8946 the peer's certificate chain and, for clients, the server's certificate
8947 and temporary key. CERT holds only those values that can have
8948 meaningful defaults in an SSL_CTX.
8951 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8952 from the internal representation. Various PKCS#7 fixes: remove some
8953 evil casts and set the enc_dig_alg field properly based on the signing
8957 *) Allow PKCS#12 password to be set from the command line or the
8958 environment. Let 'ca' get its config file name from the environment
8959 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8963 *) Allow certificate policies extension to use an IA5STRING for the
8964 organization field. This is contrary to the PKIX definition but
8965 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8969 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8970 without disallowing inline assembler and the like for non-pedantic builds.
8973 *) Support Borland C++ builder.
8974 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8979 *) SHA-1 cleanups and performance enhancements.
8980 [Andy Polyakov <appro@fy.chalmers.se>]
8982 *) Sparc v8plus assembler for the bignum library.
8983 [Andy Polyakov <appro@fy.chalmers.se>]
8985 *) Accept any -xxx and +xxx compiler options in Configure.
8988 *) Update HPUX configuration.
8991 *) Add missing sk_<type>_unshift() function to safestack.h
8992 [Ralf S. Engelschall]
8994 *) New function SSL_CTX_use_certificate_chain_file that sets the
8995 "extra_cert"s in addition to the certificate. (This makes sense
8996 only for "PEM" format files, as chains as a whole are not
9000 *) Support verify_depth from the SSL API.
9001 x509_vfy.c had what can be considered an off-by-one-error:
9002 Its depth (which was not part of the external interface)
9003 was actually counting the number of certificates in a chain;
9004 now it really counts the depth.
9007 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9008 instead of X509err, which often resulted in confusing error
9009 messages since the error codes are not globally unique
9010 (e.g. an alleged error in ssl3_accept when a certificate
9011 didn't match the private key).
9013 *) New function SSL_CTX_set_session_id_context that allows to set a default
9014 value (so that you don't need SSL_set_session_id_context for each
9015 connection using the SSL_CTX).
9018 *) OAEP decoding bug fix.
9021 *) Support INSTALL_PREFIX for package builders, as proposed by
9025 *) New Configure options "threads" and "no-threads". For systems
9026 where the proper compiler options are known (currently Solaris
9027 and Linux), "threads" is the default.
9030 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9033 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9034 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9035 such as /usr/local/bin.
9038 *) "make linux-shared" to build shared libraries.
9039 [Niels Poppe <niels@netbox.org>]
9041 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9044 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9045 extension adding in x509 utility.
9048 *) Remove NOPROTO sections and error code comments.
9051 *) Partial rewrite of the DEF file generator to now parse the ANSI
9055 *) New Configure options --prefix=DIR and --openssldir=DIR.
9058 *) Complete rewrite of the error code script(s). It is all now handled
9059 by one script at the top level which handles error code gathering,
9060 header rewriting and C source file generation. It should be much better
9061 than the old method: it now uses a modified version of Ulf's parser to
9062 read the ANSI prototypes in all header files (thus the old K&R definitions
9063 aren't needed for error creation any more) and do a better job of
9064 translating function codes into names. The old 'ASN1 error code imbedded
9065 in a comment' is no longer necessary and it doesn't use .err files which
9066 have now been deleted. Also the error code call doesn't have to appear all
9067 on one line (which resulted in some large lines...).
9070 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9073 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9074 0 (which usually indicates a closed connection), but continue reading.
9077 *) Fix some race conditions.
9080 *) Add support for CRL distribution points extension. Add Certificate
9081 Policies and CRL distribution points documentation.
9084 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9087 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9088 8 of keying material. Merlin has also confirmed interop with this fix
9089 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9090 [Merlin Hughes <merlin@baltimore.ie>]
9092 *) Fix lots of warnings.
9093 [Richard Levitte <levitte@stacken.kth.se>]
9095 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9096 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9097 [Richard Levitte <levitte@stacken.kth.se>]
9099 *) Fix problems with sizeof(long) == 8.
9100 [Andy Polyakov <appro@fy.chalmers.se>]
9102 *) Change functions to ANSI C.
9105 *) Fix typos in error codes.
9106 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9108 *) Remove defunct assembler files from Configure.
9111 *) SPARC v8 assembler BIGNUM implementation.
9112 [Andy Polyakov <appro@fy.chalmers.se>]
9114 *) Support for Certificate Policies extension: both print and set.
9115 Various additions to support the r2i method this uses.
9118 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9119 return a const string when you are expecting an allocated buffer.
9122 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9123 types DirectoryString and DisplayText.
9126 *) Add code to allow r2i extensions to access the configuration database,
9127 add an LHASH database driver and add several ctx helper functions.
9130 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9131 fail when they extended the size of a BIGNUM.
9134 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9135 support typesafe stack.
9138 *) Fix typo in SSL_[gs]et_options().
9139 [Nils Frostberg <nils@medcom.se>]
9141 *) Delete various functions and files that belonged to the (now obsolete)
9142 old X509V3 handling code.
9145 *) New Configure option "rsaref".
9148 *) Don't auto-generate pem.h.
9151 *) Introduce type-safe ASN.1 SETs.
9154 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9155 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9157 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9158 that links with OpenSSL (well at least cause lots of warnings), but fear
9159 not: the conversion is trivial, and it eliminates loads of evil casts. A
9160 few STACKed things have been converted already. Feel free to convert more.
9161 In the fullness of time, I'll do away with the STACK type altogether.
9164 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9165 specified in <certfile> by updating the entry in the index.txt file.
9166 This way one no longer has to edit the index.txt file manually for
9167 revoking a certificate. The -revoke option does the gory details now.
9168 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9170 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9171 `-text' option at all and this way the `-noout -text' combination was
9172 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9173 [Ralf S. Engelschall]
9175 *) Make sure a corresponding plain text error message exists for the
9176 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9177 verify callback function determined that a certificate was revoked.
9178 [Ralf S. Engelschall]
9180 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9181 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9182 all available cipers including rc5, which was forgotten until now.
9183 In order to let the testing shell script know which algorithms
9184 are available, a new (up to now undocumented) command
9185 "openssl list-cipher-commands" is used.
9188 *) Bugfix: s_client occasionally would sleep in select() when
9189 it should have checked SSL_pending() first.
9192 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9193 the raw DSA values prior to ASN.1 encoding.
9196 *) Tweaks to Configure
9197 [Niels Poppe <niels@netbox.org>]
9199 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9203 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9206 *) New config option to avoid instructions that are illegal on the 80386.
9207 The default code is faster, but requires at least a 486.
9210 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9211 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9212 same as SSL2_VERSION anyway.
9215 *) New "-showcerts" option for s_client.
9218 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9219 application. Various cleanups and fixes.
9222 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9223 modify error routines to work internally. Add error codes and PBE init
9224 to library startup routines.
9227 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9228 packing functions to asn1 and evp. Changed function names and error
9229 codes along the way.
9232 *) PKCS12 integration: and so it begins... First of several patches to
9233 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9234 objects to objects.h
9237 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9238 and display support for Thawte strong extranet extension.
9241 *) Add LinuxPPC support.
9242 [Jeff Dubrule <igor@pobox.org>]
9244 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9245 bn_div_words in alpha.s.
9246 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9248 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9249 OAEP isn't supported when OpenSSL is built with RSAref.
9250 [Ulf Moeller <ulf@fitug.de>]
9252 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9253 so they no longer are missing under -DNOPROTO.
9254 [Soren S. Jorvang <soren@t.dk>]
9257 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9259 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9260 doesn't work when the session is reused. Coming soon!
9263 *) Fix a security hole, that allows sessions to be reused in the wrong
9264 context thus bypassing client cert protection! All software that uses
9265 client certs and session caches in multiple contexts NEEDS PATCHING to
9266 allow session reuse! A fuller solution is in the works.
9267 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9269 *) Some more source tree cleanups (removed obsolete files
9270 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9271 permission on "config" script to be executable) and a fix for the INSTALL
9273 [Ulf Moeller <ulf@fitug.de>]
9275 *) Remove some legacy and erroneous uses of malloc, free instead of
9277 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9279 *) Make rsa_oaep_test return non-zero on error.
9280 [Ulf Moeller <ulf@fitug.de>]
9282 *) Add support for native Solaris shared libraries. Configure
9283 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9284 if someone would make that last step automatic.
9285 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9287 *) ctx_size was not built with the right compiler during "make links". Fixed.
9290 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9291 except NULL ciphers". This means the default cipher list will no longer
9292 enable NULL ciphers. They need to be specifically enabled e.g. with
9293 the string "DEFAULT:eNULL".
9296 *) Fix to RSA private encryption routines: if p < q then it would
9297 occasionally produce an invalid result. This will only happen with
9298 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9301 *) Be less restrictive and allow also `perl util/perlpath.pl
9302 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9303 because this way one can also use an interpreter named `perl5' (which is
9304 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9305 installed as `perl').
9306 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9308 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9309 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9311 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9312 advapi32.lib to Win32 build and change the pem test comparision
9313 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9314 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9315 and crypto/des/ede_cbcm_enc.c.
9318 *) DES quad checksum was broken on big-endian architectures. Fixed.
9321 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9322 Win32 test batch file so it (might) work again. The Win32 test batch file
9323 is horrible: I feel ill....
9326 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9327 in e_os.h. Audit of header files to check ANSI and non ANSI
9328 sections: 10 functions were absent from non ANSI section and not exported
9329 from Windows DLLs. Fixed up libeay.num for new functions.
9332 *) Make `openssl version' output lines consistent.
9333 [Ralf S. Engelschall]
9335 *) Fix Win32 symbol export lists for BIO functions: Added
9336 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9337 to ms/libeay{16,32}.def.
9338 [Ralf S. Engelschall]
9340 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9341 fine under Unix and passes some trivial tests I've now added. But the
9342 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9343 added to make sure no one expects that this stuff really works in the
9344 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9345 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9347 [Ralf S. Engelschall]
9349 *) Fix the generation of two part addresses in perl.
9350 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9352 *) Add config entry for Linux on MIPS.
9353 [John Tobey <jtobey@channel1.com>]
9355 *) Make links whenever Configure is run, unless we are on Windoze.
9358 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9359 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9363 *) Add a useful kludge to allow package maintainers to specify compiler and
9364 other platforms details on the command line without having to patch the
9365 Configure script everytime: One now can use ``perl Configure
9366 <id>:<details>'', i.e. platform ids are allowed to have details appended
9367 to them (seperated by colons). This is treated as there would be a static
9368 pre-configured entry in Configure's %table under key <id> with value
9369 <details> and ``perl Configure <id>'' is called. So, when you want to
9370 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9371 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9372 now, which overrides the FreeBSD-elf entry on-the-fly.
9373 [Ralf S. Engelschall]
9375 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9378 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9379 on the `perl Configure ...' command line. This way one can compile
9380 OpenSSL libraries with Position Independent Code (PIC) which is needed
9381 for linking it into DSOs.
9382 [Ralf S. Engelschall]
9384 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9388 *) Cleaned up the LICENSE document: The official contact for any license
9389 questions now is the OpenSSL core team under openssl-core@openssl.org.
9390 And add a paragraph about the dual-license situation to make sure people
9391 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9392 to the OpenSSL toolkit.
9393 [Ralf S. Engelschall]
9395 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9396 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9397 Additonally cleaned up the `make links' target: Remove unnecessary
9398 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9399 to speed processing and no longer clutter the display with confusing
9400 stuff. Instead only the actually done links are displayed.
9401 [Ralf S. Engelschall]
9403 *) Permit null encryption ciphersuites, used for authentication only. It used
9404 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9405 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9409 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9410 signed attributes when verifying signatures (this would break them),
9411 the detached data encoding was wrong and public keys obtained using
9412 X509_get_pubkey() weren't freed.
9415 *) Add text documentation for the BUFFER functions. Also added a work around
9416 to a Win95 console bug. This was triggered by the password read stuff: the
9417 last character typed gets carried over to the next fread(). If you were
9418 generating a new cert request using 'req' for example then the last
9419 character of the passphrase would be CR which would then enter the first
9423 *) Added the new `Includes OpenSSL Cryptography Software' button as
9424 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9425 button and can be used by applications based on OpenSSL to show the
9426 relationship to the OpenSSL project.
9427 [Ralf S. Engelschall]
9429 *) Remove confusing variables in function signatures in files
9430 ssl/ssl_lib.c and ssl/ssl.h.
9431 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9433 *) Don't install bss_file.c under PREFIX/include/
9434 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9436 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9437 functions that return function pointers and has support for NT specific
9438 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9439 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9440 unsigned to signed types: this was killing the Win32 compile.
9443 *) Add new certificate file to stack functions,
9444 SSL_add_dir_cert_subjects_to_stack() and
9445 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9446 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9447 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9448 This means that Apache-SSL and similar packages don't have to mess around
9449 to add as many CAs as they want to the preferred list.
9452 *) Experiment with doxygen documentation. Currently only partially applied to
9454 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9455 openssl.doxy as the configuration file.
9458 *) Get rid of remaining C++-style comments which strict C compilers hate.
9459 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9461 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9462 compiled in by default: it has problems with large keys.
9465 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9466 DH private keys and/or callback functions which directly correspond to
9467 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9468 is needed for applications which have to configure certificates on a
9469 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9471 For the RSA certificate situation is makes no difference, but
9472 for the DSA certificate situation this fixes the "no shared cipher"
9473 problem where the OpenSSL cipher selection procedure failed because the
9474 temporary keys were not overtaken from the context and the API provided
9475 no way to reconfigure them.
9476 The new functions now let applications reconfigure the stuff and they
9477 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9478 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9479 non-public-API function ssl_cert_instantiate() is used as a helper
9480 function and also to reduce code redundancy inside ssl_rsa.c.
9481 [Ralf S. Engelschall]
9483 *) Move s_server -dcert and -dkey options out of the undocumented feature
9484 area because they are useful for the DSA situation and should be
9485 recognized by the users.
9486 [Ralf S. Engelschall]
9488 *) Fix the cipher decision scheme for export ciphers: the export bits are
9489 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9490 SSL_EXP_MASK. So, the original variable has to be used instead of the
9491 already masked variable.
9492 [Richard Levitte <levitte@stacken.kth.se>]
9494 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9495 [Richard Levitte <levitte@stacken.kth.se>]
9497 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9498 from `int' to `unsigned int' because it's a length and initialized by
9499 EVP_DigestFinal() which expects an `unsigned int *'.
9500 [Richard Levitte <levitte@stacken.kth.se>]
9502 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9503 script. Instead use the usual Shell->Perl transition trick.
9504 [Ralf S. Engelschall]
9506 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9507 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9508 -noout -modulus' as it's already the case for `openssl rsa -noout
9509 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9510 currently the public key is printed (a decision which was already done by
9511 `openssl dsa -modulus' in the past) which serves a similar purpose.
9512 Additionally the NO_RSA no longer completely removes the whole -modulus
9513 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9515 [Ralf S. Engelschall]
9517 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9518 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9519 [Arne Ansper <arne@ats.cyber.ee>]
9521 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9522 to be added. Now both 'req' and 'ca' can use new objects defined in the
9526 *) Add cool BIO that does syslog (or event log on NT).
9527 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9529 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9530 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9531 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9532 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9535 *) Add preliminary config info for new extension code.
9538 *) Make RSA_NO_PADDING really use no padding.
9539 [Ulf Moeller <ulf@fitug.de>]
9541 *) Generate errors when private/public key check is done.
9544 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9545 for some CRL extensions and new objects added.
9548 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9549 key usage extension and fuller support for authority key id.
9552 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9553 padding method for RSA, which is recommended for new applications in PKCS
9554 #1 v2.0 (RFC 2437, October 1998).
9555 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9556 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9557 against Bleichbacher's attack on RSA.
9558 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9561 *) Updates to the new SSL compression code
9562 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9564 *) Fix so that the version number in the master secret, when passed
9565 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9566 (because the server will not accept higher), that the version number
9567 is 0x03,0x01, not 0x03,0x00
9568 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9570 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9571 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9572 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9575 *) Support for RAW extensions where an arbitrary extension can be
9576 created by including its DER encoding. See apps/openssl.cnf for
9580 *) Make sure latest Perl versions don't interpret some generated C array
9581 code as Perl array code in the crypto/err/err_genc.pl script.
9582 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9584 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9585 not many people have the assembler. Various Win32 compilation fixes and
9586 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9590 *) Modify configure script 'Configure' to automatically create crypto/date.h
9591 file under Win32 and also build pem.h from pem.org. New script
9592 util/mkfiles.pl to create the MINFO file on environments that can't do a
9593 'make files': perl util/mkfiles.pl >MINFO should work.
9596 *) Major rework of DES function declarations, in the pursuit of correctness
9597 and purity. As a result, many evil casts evaporated, and some weirdness,
9598 too. You may find this causes warnings in your code. Zapping your evil
9599 casts will probably fix them. Mostly.
9602 *) Fix for a typo in asn1.h. Bug fix to object creation script
9603 obj_dat.pl. It considered a zero in an object definition to mean
9604 "end of object": none of the objects in objects.h have any zeros
9605 so it wasn't spotted.
9606 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9608 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9609 Masking (CBCM). In the absence of test vectors, the best I have been able
9610 to do is check that the decrypt undoes the encrypt, so far. Send me test
9611 vectors if you have them.
9614 *) Correct calculation of key length for export ciphers (too much space was
9615 allocated for null ciphers). This has not been tested!
9618 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9619 message is now correct (it understands "crypto" and "ssl" on its
9620 command line). There is also now an "update" option. This will update
9621 the util/ssleay.num and util/libeay.num files with any new functions.
9623 perl util/mkdef.pl crypto ssl update
9624 it will update them.
9627 *) Overhauled the Perl interface (perl/*):
9628 - ported BN stuff to OpenSSL's different BN library
9629 - made the perl/ source tree CVS-aware
9630 - renamed the package from SSLeay to OpenSSL (the files still contain
9631 their history because I've copied them in the repository)
9632 - removed obsolete files (the test scripts will be replaced
9633 by better Test::Harness variants in the future)
9634 [Ralf S. Engelschall]
9636 *) First cut for a very conservative source tree cleanup:
9637 1. merge various obsolete readme texts into doc/ssleay.txt
9638 where we collect the old documents and readme texts.
9639 2. remove the first part of files where I'm already sure that we no
9640 longer need them because of three reasons: either they are just temporary
9641 files which were left by Eric or they are preserved original files where
9642 I've verified that the diff is also available in the CVS via "cvs diff
9643 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9644 the crypto/md/ stuff).
9645 [Ralf S. Engelschall]
9647 *) More extension code. Incomplete support for subject and issuer alt
9648 name, issuer and authority key id. Change the i2v function parameters
9649 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9650 what that's for :-) Fix to ASN1 macro which messed up
9651 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9654 *) Preliminary support for ENUMERATED type. This is largely copied from the
9658 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9659 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9661 *) Make sure `make rehash' target really finds the `openssl' program.
9662 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9664 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9665 like to hear about it if this slows down other processors.
9668 *) Add CygWin32 platform information to Configure script.
9669 [Alan Batie <batie@aahz.jf.intel.com>]
9671 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9672 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9674 *) New program nseq to manipulate netscape certificate sequences
9677 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9681 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9682 but the BN code had some problems that would cause failures when
9683 doing certificate verification and some other functions.
9684 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9686 *) Add ASN1 and PEM code to support netscape certificate sequences.
9689 *) Add ASN1 and PEM code to support netscape certificate sequences.
9692 *) Add several PKIX and private extended key usage OIDs.
9695 *) Modify the 'ca' program to handle the new extension code. Modify
9696 openssl.cnf for new extension format, add comments.
9699 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9700 and add a sample to openssl.cnf so req -x509 now adds appropriate
9704 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9705 error code, add initial support to X509_print() and x509 application.
9708 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9709 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9710 stuff is currently isolated and isn't even compiled yet.
9713 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9714 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9715 Removed the versions check from X509 routines when loading extensions:
9716 this allows certain broken certificates that don't set the version
9717 properly to be processed.
9720 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9721 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9722 can still be regenerated with "make depend".
9725 *) Spelling mistake in C version of CAST-128.
9726 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9728 *) Changes to the error generation code. The perl script err-code.pl
9729 now reads in the old error codes and retains the old numbers, only
9730 adding new ones if necessary. It also only changes the .err files if new
9731 codes are added. The makefiles have been modified to only insert errors
9732 when needed (to avoid needlessly modifying header files). This is done
9733 by only inserting errors if the .err file is newer than the auto generated
9734 C file. To rebuild all the error codes from scratch (the old behaviour)
9735 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9736 or delete all the .err files.
9739 *) CAST-128 was incorrectly implemented for short keys. The C version has
9740 been fixed, but is untested. The assembler versions are also fixed, but
9741 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9742 to regenerate it if needed.
9743 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9744 Hagino <itojun@kame.net>]
9746 *) File was opened incorrectly in randfile.c.
9747 [Ulf Möller <ulf@fitug.de>]
9749 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9750 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9751 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9752 al: it's just almost always a UTCTime. Note this patch adds new error
9753 codes so do a "make errors" if there are problems.
9756 *) Correct Linux 1 recognition in config.
9757 [Ulf Möller <ulf@fitug.de>]
9759 *) Remove pointless MD5 hash when using DSA keys in ca.
9760 [Anonymous <nobody@replay.com>]
9762 *) Generate an error if given an empty string as a cert directory. Also
9763 generate an error if handed NULL (previously returned 0 to indicate an
9764 error, but didn't set one).
9765 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9767 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9770 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9771 parameters. This was causing a warning which killed off the Win32 compile.
9774 *) Remove C++ style comments from crypto/bn/bn_local.h.
9775 [Neil Costigan <neil.costigan@celocom.com>]
9777 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9778 based on a text string, looking up short and long names and finally
9779 "dot" format. The "dot" format stuff didn't work. Added new function
9780 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9781 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9782 OID is not part of the table.
9785 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9786 X509_LOOKUP_by_alias().
9789 *) Sort openssl functions by name.
9792 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9793 encryption from sample DSA keys (in case anyone is interested the password
9797 *) Make _all_ *_free functions accept a NULL pointer.
9798 [Frans Heymans <fheymans@isaserver.be>]
9800 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9802 [Anonymous <nobody@replay.com>]
9804 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9805 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9807 *) Don't blow it for numeric -newkey arguments to apps/req.
9808 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9810 *) Temp key "for export" tests were wrong in s3_srvr.c.
9811 [Anonymous <nobody@replay.com>]
9813 *) Add prototype for temp key callback functions
9814 SSL_CTX_set_tmp_{rsa,dh}_callback().
9817 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9818 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9821 *) X509_name_add_entry() freed the wrong thing after an error.
9822 [Arne Ansper <arne@ats.cyber.ee>]
9824 *) rsa_eay.c would attempt to free a NULL context.
9825 [Arne Ansper <arne@ats.cyber.ee>]
9827 *) BIO_s_socket() had a broken should_retry() on Windoze.
9828 [Arne Ansper <arne@ats.cyber.ee>]
9830 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9831 [Arne Ansper <arne@ats.cyber.ee>]
9833 *) Make sure the already existing X509_STORE->depth variable is initialized
9834 in X509_STORE_new(), but document the fact that this variable is still
9835 unused in the certificate verification process.
9836 [Ralf S. Engelschall]
9838 *) Fix the various library and apps files to free up pkeys obtained from
9839 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9842 *) Fix reference counting in X509_PUBKEY_get(). This makes
9843 demos/maurice/example2.c work, amongst others, probably.
9844 [Steve Henson and Ben Laurie]
9846 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9847 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9848 are no longer created. This way we have a single and consistent command
9849 line interface `openssl <command>', similar to `cvs <command>'.
9850 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9852 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9853 BIT STRING wrapper always have zero unused bits.
9856 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9859 *) Make the top-level INSTALL documentation easier to understand.
9862 *) Makefiles updated to exit if an error occurs in a sub-directory
9863 make (including if user presses ^C) [Paul Sutton]
9865 *) Make Montgomery context stuff explicit in RSA data structure.
9868 *) Fix build order of pem and err to allow for generated pem.h.
9871 *) Fix renumbering bug in X509_NAME_delete_entry().
9874 *) Enhanced the err-ins.pl script so it makes the error library number
9875 global and can add a library name. This is needed for external ASN1 and
9876 other error libraries.
9879 *) Fixed sk_insert which never worked properly.
9882 *) Fix ASN1 macros so they can handle indefinite length construted
9883 EXPLICIT tags. Some non standard certificates use these: they can now
9887 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9888 into a single doc/ssleay.txt bundle. This way the information is still
9889 preserved but no longer messes up this directory. Now it's new room for
9890 the new set of documenation files.
9891 [Ralf S. Engelschall]
9893 *) SETs were incorrectly DER encoded. This was a major pain, because they
9894 shared code with SEQUENCEs, which aren't coded the same. This means that
9895 almost everything to do with SETs or SEQUENCEs has either changed name or
9896 number of arguments.
9897 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9899 *) Fix test data to work with the above.
9902 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9903 was already fixed by Eric for 0.9.1 it seems.
9904 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9906 *) Autodetect FreeBSD3.
9909 *) Fix various bugs in Configure. This affects the following platforms:
9913 unixware-2.0-pentium
9917 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9918 before they are needed.
9921 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9925 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9927 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9928 changed SSLeay to OpenSSL in version strings.
9929 [Ralf S. Engelschall]
9931 *) Some fixups to the top-level documents.
9934 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9935 because the symlink to include/ was missing.
9936 [Ralf S. Engelschall]
9938 *) Incorporated the popular no-RSA/DSA-only patches
9939 which allow to compile a RSA-free SSLeay.
9940 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9942 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9943 when "ssleay" is still not found.
9944 [Ralf S. Engelschall]
9946 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9947 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9949 *) Updated the README file.
9950 [Ralf S. Engelschall]
9952 *) Added various .cvsignore files in the CVS repository subdirs
9953 to make a "cvs update" really silent.
9954 [Ralf S. Engelschall]
9956 *) Recompiled the error-definition header files and added
9957 missing symbols to the Win32 linker tables.
9958 [Ralf S. Engelschall]
9960 *) Cleaned up the top-level documents;
9961 o new files: CHANGES and LICENSE
9962 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9963 o merged COPYRIGHT into LICENSE
9964 o removed obsolete TODO file
9965 o renamed MICROSOFT to INSTALL.W32
9966 [Ralf S. Engelschall]
9968 *) Removed dummy files from the 0.9.1b source tree:
9969 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9970 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9971 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9972 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9973 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9974 [Ralf S. Engelschall]
9976 *) Added various platform portability fixes.
9979 *) The Genesis of the OpenSSL rpject:
9980 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9981 Young and Tim J. Hudson created while they were working for C2Net until
9983 [The OpenSSL Project]
9986 Changes between 0.9.0b and 0.9.1b [not released]
9988 *) Updated a few CA certificates under certs/
9991 *) Changed some BIGNUM api stuff.
9994 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9995 DGUX x86, Linux Alpha, etc.
9998 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9999 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10003 *) Add -strparse option to asn1pars program which parses nested
10005 [Dr Stephen Henson <shenson@bigfoot.com>]
10007 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10010 *) DSA fix for "ca" program.
10013 *) Added "-genkey" option to "dsaparam" program.
10016 *) Added RIPE MD160 (rmd160) message digest.
10019 *) Added -a (all) option to "ssleay version" command.
10022 *) Added PLATFORM define which is the id given to Configure.
10025 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10028 *) Extended the ASN.1 parser routines.
10031 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10034 *) Added a BN_CTX to the BN library.
10037 *) Fixed the weak key values in DES library
10040 *) Changed API in EVP library for cipher aliases.
10043 *) Added support for RC2/64bit cipher.
10046 *) Converted the lhash library to the crypto/mem.c functions.
10049 *) Added more recognized ASN.1 object ids.
10052 *) Added more RSA padding checks for SSL/TLS.
10055 *) Added BIO proxy/filter functionality.
10058 *) Added extra_certs to SSL_CTX which can be used
10059 send extra CA certificates to the client in the CA cert chain sending
10060 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10063 *) Now Fortezza is denied in the authentication phase because
10064 this is key exchange mechanism is not supported by SSLeay at all.
10067 *) Additional PKCS1 checks.
10070 *) Support the string "TLSv1" for all TLS v1 ciphers.
10073 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10074 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10077 *) Fixed a few memory leaks.
10080 *) Fixed various code and comment typos.
10083 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10084 bytes sent in the client random.
10085 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob