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 [xx XXX xxxx]
526 *) Clear bytes used for block padding of SSL 3.0 records.
528 [Adam Langley (Google)]
530 *) Only allow one SGC handshake restart for SSL/TLS. (CVE-2011-4619)
531 [Adam Langley (Google)]
533 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
534 [Andrey Kulikov <amdeich@gmail.com>]
536 *) Prevent malformed RFC3779 data triggering an assertion failure.
537 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
538 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
539 [Rob Austein <sra@hactrn.net>]
541 *) Fix ssl_ciph.c set-up race.
542 [Adam Langley (Google)]
544 *) Fix spurious failures in ecdsatest.c.
545 [Emilia Käsper (Google)]
547 *) Fix the BIO_f_buffer() implementation (which was mixing different
548 interpretations of the '..._len' fields).
549 [Adam Langley (Google)]
551 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
552 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
553 threads won't reuse the same blinding coefficients.
555 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
556 lock to call BN_BLINDING_invert_ex, and avoids one use of
557 BN_BLINDING_update for each BN_BLINDING structure (previously,
558 the last update always remained unused).
559 [Emilia Käsper (Google)]
561 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
562 [Bob Buckholz (Google)]
564 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
566 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
567 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
568 [Kaspar Brand <ossl@velox.ch>]
570 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
571 for multi-threaded use of ECDH. (CVE-2011-3210)
572 [Adam Langley (Google)]
574 *) Fix x509_name_ex_d2i memory leak on bad inputs.
577 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
578 signature public key algorithm by using OID xref utilities instead.
579 Before this you could only use some ECC ciphersuites with SHA1 only.
582 *) Add protection against ECDSA timing attacks as mentioned in the paper
583 by Billy Bob Brumley and Nicola Tuveri, see:
585 http://eprint.iacr.org/2011/232.pdf
587 [Billy Bob Brumley and Nicola Tuveri]
589 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
591 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
592 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
594 *) Fix bug in string printing code: if *any* escaping is enabled we must
595 escape the escape character (backslash) or the resulting string is
599 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
601 *) Disable code workaround for ancient and obsolete Netscape browsers
602 and servers: an attacker can use it in a ciphersuite downgrade attack.
603 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
606 *) Fixed J-PAKE implementation error, originally discovered by
607 Sebastien Martini, further info and confirmation from Stefan
608 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
611 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
613 *) Fix extension code to avoid race conditions which can result in a buffer
614 overrun vulnerability: resumed sessions must not be modified as they can
615 be shared by multiple threads. CVE-2010-3864
618 *) Fix WIN32 build system to correctly link an ENGINE directory into
622 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
624 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
626 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
628 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
630 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
631 context. The operation can be customised via the ctrl mechanism in
632 case ENGINEs want to include additional functionality.
635 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
638 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
639 output hashes compatible with older versions of OpenSSL.
640 [Willy Weisz <weisz@vcpc.univie.ac.at>]
642 *) Fix compression algorithm handling: if resuming a session use the
643 compression algorithm of the resumed session instead of determining
644 it from client hello again. Don't allow server to change algorithm.
647 *) Add load_crls() function to apps tidying load_certs() too. Add option
648 to verify utility to allow additional CRLs to be included.
651 *) Update OCSP request code to permit adding custom headers to the request:
652 some responders need this.
655 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
657 [Julia Lawall <julia@diku.dk>]
659 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
660 needlessly dereferenced structures, used obsolete functions and
661 didn't handle all updated verify codes correctly.
664 *) Disable MD2 in the default configuration.
667 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
668 indicate the initial BIO being pushed or popped. This makes it possible
669 to determine whether the BIO is the one explicitly called or as a result
670 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
671 it handles reference counts correctly and doesn't zero out the I/O bio
672 when it is not being explicitly popped. WARNING: applications which
673 included workarounds for the old buggy behaviour will need to be modified
674 or they could free up already freed BIOs.
677 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
678 renaming to all platforms (within the 0.9.8 branch, this was
679 done conditionally on Netware platforms to avoid a name clash).
680 [Guenter <lists@gknw.net>]
682 *) Add ECDHE and PSK support to DTLS.
683 [Michael Tuexen <tuexen@fh-muenster.de>]
685 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
689 *) Add "missing" function EVP_MD_flags() (without this the only way to
690 retrieve a digest flags is by accessing the structure directly. Update
691 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
692 or cipher is registered as in the "from" argument. Print out all
693 registered digests in the dgst usage message instead of manually
694 attempting to work them out.
697 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
698 this allows the use of compression and extensions. Change default cipher
699 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
700 by default unless an application cipher string requests it.
703 *) Alter match criteria in PKCS12_parse(). It used to try to use local
704 key ids to find matching certificates and keys but some PKCS#12 files
705 don't follow the (somewhat unwritten) rules and this strategy fails.
706 Now just gather all certificates together and the first private key
707 then look for the first certificate that matches the key.
710 *) Support use of registered digest and cipher names for dgst and cipher
711 commands instead of having to add each one as a special case. So now
718 openssl dgst -sha256 foo
720 and this works for ENGINE based algorithms too.
724 *) Update Gost ENGINE to support parameter files.
725 [Victor B. Wagner <vitus@cryptocom.ru>]
727 *) Support GeneralizedTime in ca utility.
728 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
730 *) Enhance the hash format used for certificate directory links. The new
731 form uses the canonical encoding (meaning equivalent names will work
732 even if they aren't identical) and uses SHA1 instead of MD5. This form
733 is incompatible with the older format and as a result c_rehash should
734 be used to rebuild symbolic links.
737 *) Make PKCS#8 the default write format for private keys, replacing the
738 traditional format. This form is standardised, more secure and doesn't
739 include an implicit MD5 dependency.
742 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
743 committed to OpenSSL should pass this lot as a minimum.
746 *) Add session ticket override functionality for use by EAP-FAST.
747 [Jouni Malinen <j@w1.fi>]
749 *) Modify HMAC functions to return a value. Since these can be implemented
750 in an ENGINE errors can occur.
753 *) Type-checked OBJ_bsearch_ex.
756 *) Type-checked OBJ_bsearch. Also some constification necessitated
757 by type-checking. Still to come: TXT_DB, bsearch(?),
758 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
762 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
763 seconds to a tm structure directly, instead of going through OS
764 specific date routines. This avoids any issues with OS routines such
765 as the year 2038 bug. New *_adj() functions for ASN1 time structures
766 and X509_time_adj_ex() to cover the extended range. The existing
767 X509_time_adj() is still usable and will no longer have any date issues.
770 *) Delta CRL support. New use deltas option which will attempt to locate
771 and search any appropriate delta CRLs available.
773 This work was sponsored by Google.
776 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
777 code and add additional score elements. Validate alternate CRL paths
778 as part of the CRL checking and indicate a new error "CRL path validation
779 error" in this case. Applications wanting additional details can use
780 the verify callback and check the new "parent" field. If this is not
781 NULL CRL path validation is taking place. Existing applications wont
782 see this because it requires extended CRL support which is off by
785 This work was sponsored by Google.
788 *) Support for freshest CRL extension.
790 This work was sponsored by Google.
793 *) Initial indirect CRL support. Currently only supported in the CRLs
794 passed directly and not via lookup. Process certificate issuer
795 CRL entry extension and lookup CRL entries by bother issuer name
796 and serial number. Check and process CRL issuer entry in IDP extension.
798 This work was sponsored by Google.
801 *) Add support for distinct certificate and CRL paths. The CRL issuer
802 certificate is validated separately in this case. Only enabled if
803 an extended CRL support flag is set: this flag will enable additional
804 CRL functionality in future.
806 This work was sponsored by Google.
809 *) Add support for policy mappings extension.
811 This work was sponsored by Google.
814 *) Fixes to pathlength constraint, self issued certificate handling,
815 policy processing to align with RFC3280 and PKITS tests.
817 This work was sponsored by Google.
820 *) Support for name constraints certificate extension. DN, email, DNS
821 and URI types are currently supported.
823 This work was sponsored by Google.
826 *) To cater for systems that provide a pointer-based thread ID rather
827 than numeric, deprecate the current numeric thread ID mechanism and
828 replace it with a structure and associated callback type. This
829 mechanism allows a numeric "hash" to be extracted from a thread ID in
830 either case, and on platforms where pointers are larger than 'long',
831 mixing is done to help ensure the numeric 'hash' is usable even if it
832 can't be guaranteed unique. The default mechanism is to use "&errno"
833 as a pointer-based thread ID to distinguish between threads.
835 Applications that want to provide their own thread IDs should now use
836 CRYPTO_THREADID_set_callback() to register a callback that will call
837 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
839 Note that ERR_remove_state() is now deprecated, because it is tied
840 to the assumption that thread IDs are numeric. ERR_remove_state(0)
841 to free the current thread's error state should be replaced by
842 ERR_remove_thread_state(NULL).
844 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
845 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
846 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
847 application was previously providing a numeric thread callback that
848 was inappropriate for distinguishing threads, then uniqueness might
849 have been obtained with &errno that happened immediately in the
850 intermediate development versions of OpenSSL; this is no longer the
851 case, the numeric thread callback will now override the automatic use
853 [Geoff Thorpe, with help from Bodo Moeller]
855 *) Initial support for different CRL issuing certificates. This covers a
856 simple case where the self issued certificates in the chain exist and
857 the real CRL issuer is higher in the existing chain.
859 This work was sponsored by Google.
862 *) Removed effectively defunct crypto/store from the build.
865 *) Revamp of STACK to provide stronger type-checking. Still to come:
866 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
867 ASN1_STRING, CONF_VALUE.
870 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
871 RAM on SSL connections. This option can save about 34k per idle SSL.
874 *) Revamp of LHASH to provide stronger type-checking. Still to come:
875 STACK, TXT_DB, bsearch, qsort.
878 *) Initial support for Cryptographic Message Syntax (aka CMS) based
879 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
880 support for data, signedData, compressedData, digestedData and
881 encryptedData, envelopedData types included. Scripts to check against
882 RFC4134 examples draft and interop and consistency checks of many
883 content types and variants.
886 *) Add options to enc utility to support use of zlib compression BIO.
889 *) Extend mk1mf to support importing of options and assembly language
890 files from Configure script, currently only included in VC-WIN32.
891 The assembly language rules can now optionally generate the source
892 files from the associated perl scripts.
895 *) Implement remaining functionality needed to support GOST ciphersuites.
896 Interop testing has been performed using CryptoPro implementations.
897 [Victor B. Wagner <vitus@cryptocom.ru>]
899 *) s390x assembler pack.
902 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
906 *) Implement Opaque PRF Input TLS extension as specified in
907 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
908 official specification yet and no extension type assignment by
909 IANA exists, this extension (for now) will have to be explicitly
910 enabled when building OpenSSL by providing the extension number
911 to use. For example, specify an option
913 -DTLSEXT_TYPE_opaque_prf_input=0x9527
915 to the "config" or "Configure" script to enable the extension,
916 assuming extension number 0x9527 (which is a completely arbitrary
917 and unofficial assignment based on the MD5 hash of the Internet
918 Draft). Note that by doing so, you potentially lose
919 interoperability with other TLS implementations since these might
920 be using the same extension number for other purposes.
922 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
923 opaque PRF input value to use in the handshake. This will create
924 an interal copy of the length-'len' string at 'src', and will
925 return non-zero for success.
927 To get more control and flexibility, provide a callback function
930 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
931 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
935 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
938 Callback function 'cb' will be called in handshakes, and is
939 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
940 Argument 'arg' is for application purposes (the value as given to
941 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
942 be provided to the callback function). The callback function
943 has to return non-zero to report success: usually 1 to use opaque
944 PRF input just if possible, or 2 to enforce use of the opaque PRF
945 input. In the latter case, the library will abort the handshake
946 if opaque PRF input is not successfully negotiated.
948 Arguments 'peerinput' and 'len' given to the callback function
949 will always be NULL and 0 in the case of a client. A server will
950 see the client's opaque PRF input through these variables if
951 available (NULL and 0 otherwise). Note that if the server
952 provides an opaque PRF input, the length must be the same as the
953 length of the client's opaque PRF input.
955 Note that the callback function will only be called when creating
956 a new session (session resumption can resume whatever was
957 previously negotiated), and will not be called in SSL 2.0
958 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
959 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
960 for applications that need to enforce opaque PRF input.
964 *) Update ssl code to support digests other than SHA1+MD5 for handshake
967 [Victor B. Wagner <vitus@cryptocom.ru>]
969 *) Add RFC4507 support to OpenSSL. This includes the corrections in
970 RFC4507bis. The encrypted ticket format is an encrypted encoded
971 SSL_SESSION structure, that way new session features are automatically
974 If a client application caches session in an SSL_SESSION structure
975 support is transparent because tickets are now stored in the encoded
978 The SSL_CTX structure automatically generates keys for ticket
979 protection in servers so again support should be possible
980 with no application modification.
982 If a client or server wishes to disable RFC4507 support then the option
983 SSL_OP_NO_TICKET can be set.
985 Add a TLS extension debugging callback to allow the contents of any client
986 or server extensions to be examined.
988 This work was sponsored by Google.
991 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
992 OpenSSL should now compile cleanly on gcc 4.2
993 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
995 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
996 support including streaming MAC support: this is required for GOST
998 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1000 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1001 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1002 to output in BER and PEM format.
1005 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1006 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1007 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1008 ENGINE support for HMAC keys which are unextractable. New -mac and
1009 -macopt options to dgst utility.
1012 *) New option -sigopt to dgst utility. Update dgst to use
1013 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1014 alternative signing paramaters such as X9.31 or PSS in the dgst
1018 *) Change ssl_cipher_apply_rule(), the internal function that does
1019 the work each time a ciphersuite string requests enabling
1020 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1021 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1022 the order of disabled ciphersuites such that those ciphersuites
1023 that most recently went from enabled to disabled not only stay
1024 in order with respect to each other, but also have higher priority
1025 than other disabled ciphersuites the next time ciphersuites are
1028 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1029 the same ciphersuites as with "HIGH" alone, but in a specific
1030 order where the PSK ciphersuites come first (since they are the
1031 most recently disabled ciphersuites when "HIGH" is parsed).
1033 Also, change ssl_create_cipher_list() (using this new
1034 funcionality) such that between otherwise identical
1035 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1039 *) Change ssl_create_cipher_list() so that it automatically
1040 arranges the ciphersuites in reasonable order before starting
1041 to process the rule string. Thus, the definition for "DEFAULT"
1042 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1043 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1044 This makes it much easier to arrive at a reasonable default order
1045 in applications for which anonymous ciphers are OK (meaning
1046 that you can't actually use DEFAULT).
1047 [Bodo Moeller; suggested by Victor Duchovni]
1049 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1050 processing) into multiple integers instead of setting
1051 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1052 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1053 (These masks as well as the individual bit definitions are hidden
1054 away into the non-exported interface ssl/ssl_locl.h, so this
1055 change to the definition of the SSL_CIPHER structure shouldn't
1056 affect applications.) This give us more bits for each of these
1057 categories, so there is no longer a need to coagulate AES128 and
1058 AES256 into a single algorithm bit, and to coagulate Camellia128
1059 and Camellia256 into a single algorithm bit, which has led to all
1062 Thus, among other things, the kludge introduced in 0.9.7m and
1063 0.9.8e for masking out AES256 independently of AES128 or masking
1064 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1066 With the change, we also introduce new ciphersuite aliases that
1067 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1071 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1072 Use the leftmost N bytes of the signature input if the input is
1073 larger than the prime q (with N being the size in bytes of q).
1076 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1077 it yet and it is largely untested.
1080 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1083 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1084 some compilers (gcc 4.2 and later) reject their use. Safestack is
1085 reimplemented. Update ASN1 to avoid use of legacy functions.
1088 *) Win32/64 targets are linked with Winsock2.
1091 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1092 to external functions. This can be used to increase CRL handling
1093 efficiency especially when CRLs are very large by (for example) storing
1094 the CRL revoked certificates in a database.
1097 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1098 new CRLs added to a directory can be used. New command line option
1099 -verify_return_error to s_client and s_server. This causes real errors
1100 to be returned by the verify callback instead of carrying on no matter
1101 what. This reflects the way a "real world" verify callback would behave.
1104 *) GOST engine, supporting several GOST algorithms and public key formats.
1105 Kindly donated by Cryptocom.
1108 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1109 partitioned by DP are handled but no indirect CRL or reason partitioning
1110 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1111 selected via a scoring technique which handles IDP and AKID in CRLs.
1114 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1115 will ultimately be used for all verify operations: this will remove the
1116 X509_STORE dependency on certificate verification and allow alternative
1117 lookup methods. X509_STORE based implementations of these two callbacks.
1120 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1121 Modify get_crl() to find a valid (unexpired) CRL if possible.
1124 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1125 this would be called X509_CRL_cmp() but that name is already used by
1126 a function that just compares CRL issuer names. Cache several CRL
1127 extensions in X509_CRL structure and cache CRLDP in X509.
1130 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1131 this maps equivalent X509_NAME structures into a consistent structure.
1132 Name comparison can then be performed rapidly using memcmp().
1135 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1139 *) Allow digests to supply their own micalg string for S/MIME type using
1140 the ctrl EVP_MD_CTRL_MICALG.
1143 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1144 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1145 ctrl. It can then customise the structure before and/or after signing
1149 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1150 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1151 to free up any added signature OIDs.
1154 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1155 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1156 digest and cipher tables. New options added to openssl utility:
1157 list-message-digest-algorithms and list-cipher-algorithms.
1160 *) Change the array representation of binary polynomials: the list
1161 of degrees of non-zero coefficients is now terminated with -1.
1162 Previously it was terminated with 0, which was also part of the
1163 value; thus, the array representation was not applicable to
1164 polynomials where t^0 has coefficient zero. This change makes
1165 the array representation useful in a more general context.
1168 *) Various modifications and fixes to SSL/TLS cipher string
1169 handling. For ECC, the code now distinguishes between fixed ECDH
1170 with RSA certificates on the one hand and with ECDSA certificates
1171 on the other hand, since these are separate ciphersuites. The
1172 unused code for Fortezza ciphersuites has been removed.
1174 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1175 (not "ECDHE"). For consistency with the code for DH
1176 certificates, use of ECDH certificates is now considered ECDH
1177 authentication, not RSA or ECDSA authentication (the latter is
1178 merely the CA's signing algorithm and not actively used in the
1181 The temporary ciphersuite alias "ECCdraft" is no longer
1182 available, and ECC ciphersuites are no longer excluded from "ALL"
1183 and "DEFAULT". The following aliases now exist for RFC 4492
1184 ciphersuites, most of these by analogy with the DH case:
1186 kECDHr - ECDH cert, signed with RSA
1187 kECDHe - ECDH cert, signed with ECDSA
1188 kECDH - ECDH cert (signed with either RSA or ECDSA)
1189 kEECDH - ephemeral ECDH
1190 ECDH - ECDH cert or ephemeral ECDH
1196 AECDH - anonymous ECDH
1197 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1201 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1202 Use correct micalg parameters depending on digest(s) in signed message.
1205 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1206 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1209 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1210 an engine to register a method. Add ENGINE lookups for methods and
1211 functional reference processing.
1214 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1215 EVP_{Sign,Verify}* which allow an application to customise the signature
1219 *) New -resign option to smime utility. This adds one or more signers
1220 to an existing PKCS#7 signedData structure. Also -md option to use an
1221 alternative message digest algorithm for signing.
1224 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1225 create PKCS7 structures containing multiple signers. Update smime
1226 application to support multiple signers.
1229 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1233 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1234 Reorganize PBE internals to lookup from a static table using NIDs,
1235 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1236 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1237 PRF which will be automatically used with PBES2.
1240 *) Replace the algorithm specific calls to generate keys in "req" with the
1244 *) Update PKCS#7 enveloped data routines to use new API. This is now
1245 supported by any public key method supporting the encrypt operation. A
1246 ctrl is added to allow the public key algorithm to examine or modify
1247 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1251 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1252 a default digest type to use. In most cases this will be SHA1 but some
1253 algorithms (such as GOST) need to specify an alternative digest. The
1254 return value indicates how strong the prefernce is 1 means optional and
1255 2 is mandatory (that is it is the only supported type). Modify
1256 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1257 use the default md. Update openssl utilities to use the default digest
1258 type for signing if it is not explicitly indicated.
1261 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1262 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1263 signing method from the key type. This effectively removes the link
1264 between digests and public key types.
1267 *) Add an OID cross reference table and utility functions. Its purpose is to
1268 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1269 rsaEncryption. This will allow some of the algorithm specific hackery
1270 needed to use the correct OID to be removed.
1273 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1274 structures for PKCS7_sign(). They are now set up by the relevant public
1278 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1281 *) Add support for key derivation (agreement) in the API, DH method and
1285 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1286 public and private key formats. As a side effect these add additional
1287 command line functionality not previously available: DSA signatures can be
1288 generated and verified using pkeyutl and DH key support and generation in
1293 [Oliver Tappe <zooey@hirschkaefer.de>]
1295 *) New make target "install_html_docs" installs HTML renditions of the
1297 [Oliver Tappe <zooey@hirschkaefer.de>]
1299 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1300 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1301 support key and parameter generation and add initial key generation
1302 functionality for RSA.
1305 *) Add functions for main EVP_PKEY_method operations. The undocumented
1306 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1307 EVP_PKEY_{encrypt,decrypt}_old.
1310 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1311 key API, doesn't do much yet.
1314 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1315 public key algorithms. New option to openssl utility:
1316 "list-public-key-algorithms" to print out info.
1319 *) Implement the Supported Elliptic Curves Extension for
1320 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1323 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1324 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1327 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1328 utilities such as rsa, dsa, dsaparam etc except they process any key
1332 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1333 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1334 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1338 *) Initial support for pluggable public key ASN1.
1339 De-spaghettify the public key ASN1 handling. Move public and private
1340 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1341 algorithm specific handling to a single module within the relevant
1342 algorithm directory. Add functions to allow (near) opaque processing
1343 of public and private key structures.
1346 *) Implement the Supported Point Formats Extension for
1347 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1350 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1351 for the psk identity [hint] and the psk callback functions to the
1352 SSL_SESSION, SSL and SSL_CTX structure.
1355 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1359 SSL_CTX_use_psk_identity_hint
1360 SSL_get_psk_identity_hint
1361 SSL_get_psk_identity
1362 SSL_use_psk_identity_hint
1364 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1366 *) Add RFC 3161 compliant time stamp request creation, response generation
1367 and response verification functionality.
1368 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1370 *) Add initial support for TLS extensions, specifically for the server_name
1371 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1372 have new members for a host name. The SSL data structure has an
1373 additional member SSL_CTX *initial_ctx so that new sessions can be
1374 stored in that context to allow for session resumption, even after the
1375 SSL has been switched to a new SSL_CTX in reaction to a client's
1376 server_name extension.
1378 New functions (subject to change):
1380 SSL_get_servername()
1381 SSL_get_servername_type()
1384 New CTRL codes and macros (subject to change):
1386 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1387 - SSL_CTX_set_tlsext_servername_callback()
1388 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1389 - SSL_CTX_set_tlsext_servername_arg()
1390 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1392 openssl s_client has a new '-servername ...' option.
1394 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1395 '-key2 ...', '-servername_fatal' (subject to change). This allows
1396 testing the HostName extension for a specific single host name ('-cert'
1397 and '-key' remain fallbacks for handshakes without HostName
1398 negotiation). If the unrecogninzed_name alert has to be sent, this by
1399 default is a warning; it becomes fatal with the '-servername_fatal'
1402 [Peter Sylvester, Remy Allais, Christophe Renou]
1404 *) Whirlpool hash implementation is added.
1407 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1408 bn(64,32). Because of instruction set limitations it doesn't have
1409 any negative impact on performance. This was done mostly in order
1410 to make it possible to share assembler modules, such as bn_mul_mont
1411 implementations, between 32- and 64-bit builds without hassle.
1414 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1415 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1419 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1420 dedicated Montgomery multiplication procedure, is introduced.
1421 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1422 "64-bit" performance on certain 32-bit targets.
1425 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1426 in SSL structures. New SSL ctrl to set maximum send fragment size.
1427 Save memory by seeting the I/O buffer sizes dynamically instead of
1428 using the maximum available value.
1431 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1432 in addition to the text details.
1435 *) Very, very preliminary EXPERIMENTAL support for printing of general
1436 ASN1 structures. This currently produces rather ugly output and doesn't
1437 handle several customised structures at all.
1440 *) Integrated support for PVK file format and some related formats such
1441 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1442 these in the 'rsa' and 'dsa' utilities.
1445 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1448 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1449 place for the (very old) "NETSCAPE" format certificates which are now
1450 handled using new ASN1 code equivalents.
1453 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1454 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1455 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1458 *) Modify CRL distribution points extension code to print out previously
1459 unsupported fields. Enhance extension setting code to allow setting of
1463 *) Add print and set support for Issuing Distribution Point CRL extension.
1466 *) Change 'Configure' script to enable Camellia by default.
1469 Changes between 0.9.8r and 0.9.8s [xx XXX xxxx]
1471 *) Fix ssl_ciph.c set-up race.
1472 [Adam Langley (Google)]
1474 *) Fix spurious failures in ecdsatest.c.
1475 [Emilia Käsper (Google)]
1477 *) Fix the BIO_f_buffer() implementation (which was mixing different
1478 interpretations of the '..._len' fields).
1479 [Adam Langley (Google)]
1481 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1482 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1483 threads won't reuse the same blinding coefficients.
1485 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1486 lock to call BN_BLINDING_invert_ex, and avoids one use of
1487 BN_BLINDING_update for each BN_BLINDING structure (previously,
1488 the last update always remained unused).
1489 [Emilia Käsper (Google)]
1491 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1492 for multi-threaded use of ECDH.
1493 [Adam Langley (Google)]
1495 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1498 *) Add protection against ECDSA timing attacks as mentioned in the paper
1499 by Billy Bob Brumley and Nicola Tuveri, see:
1501 http://eprint.iacr.org/2011/232.pdf
1503 [Billy Bob Brumley and Nicola Tuveri]
1505 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1507 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1508 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1510 *) Fix bug in string printing code: if *any* escaping is enabled we must
1511 escape the escape character (backslash) or the resulting string is
1515 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1517 *) Disable code workaround for ancient and obsolete Netscape browsers
1518 and servers: an attacker can use it in a ciphersuite downgrade attack.
1519 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1522 *) Fixed J-PAKE implementation error, originally discovered by
1523 Sebastien Martini, further info and confirmation from Stefan
1524 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1527 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1529 *) Fix extension code to avoid race conditions which can result in a buffer
1530 overrun vulnerability: resumed sessions must not be modified as they can
1531 be shared by multiple threads. CVE-2010-3864
1534 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1537 *) Don't reencode certificate when calculating signature: cache and use
1538 the original encoding instead. This makes signature verification of
1539 some broken encodings work correctly.
1542 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1543 is also one of the inputs.
1544 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1546 *) Don't repeatedly append PBE algorithms to table if they already exist.
1547 Sort table on each new add. This effectively makes the table read only
1548 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1552 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1554 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1557 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1558 access or freeing data twice (CVE-2010-0742)
1559 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1561 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1562 common in certificates and some applications which only call
1563 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1567 Reduce copying into .apps and .test in makevms.com
1568 Don't try to use blank CA certificate in CA.com
1569 Allow use of C files from original directories in maketests.com
1570 [Steven M. Schweda" <sms@antinode.info>]
1572 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1574 *) When rejecting SSL/TLS records due to an incorrect version number, never
1575 update s->server with a new major version number. As of
1576 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1577 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1578 the previous behavior could result in a read attempt at NULL when
1579 receiving specific incorrect SSL/TLS records once record payload
1580 protection is active. (CVE-2010-0740)
1581 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1583 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1584 could be crashed if the relevant tables were not present (e.g. chrooted).
1585 [Tomas Hoger <thoger@redhat.com>]
1587 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1589 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1590 [Martin Olsson, Neel Mehta]
1592 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1593 accommodate for stack sorting, always a write lock!).
1596 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1597 excessive delays in the RAND_poll(): over a minute. As a workaround
1598 include a time check in the inner Heap32Next loop too.
1601 *) The code that handled flushing of data in SSL/TLS originally used the
1602 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1603 the problem outlined in PR#1949. The fix suggested there however can
1604 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1605 of Apache). So instead simplify the code to flush unconditionally.
1606 This should be fine since flushing with no data to flush is a no op.
1609 *) Handle TLS versions 2.0 and later properly and correctly use the
1610 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1611 off ancient servers have a habit of sticking around for a while...
1614 *) Modify compression code so it frees up structures without using the
1615 ex_data callbacks. This works around a problem where some applications
1616 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1617 restarting) then use compression (e.g. SSL with compression) later.
1618 This results in significant per-connection memory leaks and
1619 has caused some security issues including CVE-2008-1678 and
1623 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1624 change when encrypting or decrypting.
1627 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1628 connect and renegotiate with servers which do not support RI.
1629 Until RI is more widely deployed this option is enabled by default.
1632 *) Add "missing" ssl ctrls to clear options and mode.
1635 *) If client attempts to renegotiate and doesn't support RI respond with
1636 a no_renegotiation alert as required by RFC5746. Some renegotiating
1637 TLS clients will continue a connection gracefully when they receive
1638 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1639 waiting for a server hello which it will never receive. Now we treat a
1640 received no_renegotiation alert as a fatal error. This is because
1641 applications requesting a renegotiation might well expect it to succeed
1642 and would have no code in place to handle the server denying it so the
1643 only safe thing to do is to terminate the connection.
1646 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1647 peer supports secure renegotiation and 0 otherwise. Print out peer
1648 renegotiation support in s_client/s_server.
1651 *) Replace the highly broken and deprecated SPKAC certification method with
1652 the updated NID creation version. This should correctly handle UTF8.
1655 *) Implement RFC5746. Re-enable renegotiation but require the extension
1656 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1657 turns out to be a bad idea. It has been replaced by
1658 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1659 SSL_CTX_set_options(). This is really not recommended unless you
1660 know what you are doing.
1661 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1663 *) Fixes to stateless session resumption handling. Use initial_ctx when
1664 issuing and attempting to decrypt tickets in case it has changed during
1665 servername handling. Use a non-zero length session ID when attempting
1666 stateless session resumption: this makes it possible to determine if
1667 a resumption has occurred immediately after receiving server hello
1668 (several places in OpenSSL subtly assume this) instead of later in
1672 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1673 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1674 fixes for a few places where the return code is not checked
1676 [Julia Lawall <julia@diku.dk>]
1678 *) Add --strict-warnings option to Configure script to include devteam
1679 warnings in other configurations.
1682 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1683 makes it possible to install openssl libraries in locations which
1684 have names other than "lib", for example "/usr/lib64" which some
1686 [Steve Henson, based on patch from Jeremy Utley]
1688 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1689 X690 8.9.12 and can produce some misleading textual output of OIDs.
1690 [Steve Henson, reported by Dan Kaminsky]
1692 *) Delete MD2 from algorithm tables. This follows the recommendation in
1693 several standards that it is not used in new applications due to
1694 several cryptographic weaknesses. For binary compatibility reasons
1695 the MD2 API is still compiled in by default.
1698 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1702 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1703 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1705 [Guenter <lists@gknw.net>]
1707 *) Fix the server certificate chain building code to use X509_verify_cert(),
1708 it used to have an ad-hoc builder which was unable to cope with anything
1709 other than a simple chain.
1710 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1712 *) Don't check self signed certificate signatures in X509_verify_cert()
1713 by default (a flag can override this): it just wastes time without
1714 adding any security. As a useful side effect self signed root CAs
1715 with non-FIPS digests are now usable in FIPS mode.
1718 *) In dtls1_process_out_of_seq_message() the check if the current message
1719 is already buffered was missing. For every new message was memory
1720 allocated, allowing an attacker to perform an denial of service attack
1721 with sending out of seq handshake messages until there is no memory
1722 left. Additionally every future messege was buffered, even if the
1723 sequence number made no sense and would be part of another handshake.
1724 So only messages with sequence numbers less than 10 in advance will be
1725 buffered. (CVE-2009-1378)
1726 [Robin Seggelmann, discovered by Daniel Mentz]
1728 *) Records are buffered if they arrive with a future epoch to be
1729 processed after finishing the corresponding handshake. There is
1730 currently no limitation to this buffer allowing an attacker to perform
1731 a DOS attack with sending records with future epochs until there is no
1732 memory left. This patch adds the pqueue_size() function to detemine
1733 the size of a buffer and limits the record buffer to 100 entries.
1735 [Robin Seggelmann, discovered by Daniel Mentz]
1737 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1738 parent structure is freed. (CVE-2009-1379)
1741 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1742 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1745 [Ilya O. <vrghost@gmail.com>]
1747 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1749 *) Disable renegotiation completely - this fixes a severe security
1750 problem (CVE-2009-3555) at the cost of breaking all
1751 renegotiation. Renegotiation can be re-enabled by setting
1752 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1753 run-time. This is really not recommended unless you know what
1757 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1759 *) Don't set val to NULL when freeing up structures, it is freed up by
1760 underlying code. If sizeof(void *) > sizeof(long) this can result in
1761 zeroing past the valid field. (CVE-2009-0789)
1762 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1764 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1765 checked correctly. This would allow some invalid signed attributes to
1766 appear to verify correctly. (CVE-2009-0591)
1767 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1769 *) Reject UniversalString and BMPString types with invalid lengths. This
1770 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1771 a legal length. (CVE-2009-0590)
1774 *) Set S/MIME signing as the default purpose rather than setting it
1775 unconditionally. This allows applications to override it at the store
1779 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1780 to handle some structures.
1783 *) Improve efficiency of mem_gets: don't search whole buffer each time
1785 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1787 *) New -hex option for openssl rand.
1790 *) Print out UTF8String and NumericString when parsing ASN1.
1793 *) Support NumericString type for name components.
1796 *) Allow CC in the environment to override the automatically chosen
1797 compiler. Note that nothing is done to ensure flags work with the
1801 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1803 *) Properly check EVP_VerifyFinal() and similar return values
1805 [Ben Laurie, Bodo Moeller, Google Security Team]
1807 *) Enable TLS extensions by default.
1810 *) Allow the CHIL engine to be loaded, whether the application is
1811 multithreaded or not. (This does not release the developer from the
1812 obligation to set up the dynamic locking callbacks.)
1813 [Sander Temme <sander@temme.net>]
1815 *) Use correct exit code if there is an error in dgst command.
1816 [Steve Henson; problem pointed out by Roland Dirlewanger]
1818 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1819 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1822 *) Add experimental JPAKE support, including demo authentication in
1823 s_client and s_server.
1826 *) Set the comparison function in v3_addr_canonize().
1827 [Rob Austein <sra@hactrn.net>]
1829 *) Add support for XMPP STARTTLS in s_client.
1830 [Philip Paeps <philip@freebsd.org>]
1832 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1833 to ensure that even with this option, only ciphersuites in the
1834 server's preference list will be accepted. (Note that the option
1835 applies only when resuming a session, so the earlier behavior was
1836 just about the algorithm choice for symmetric cryptography.)
1839 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1841 *) Fix NULL pointer dereference if a DTLS server received
1842 ChangeCipherSpec as first record (CVE-2009-1386).
1845 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1846 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1849 *) The fix in 0.9.8c that supposedly got rid of unsafe
1850 double-checked locking was incomplete for RSA blinding,
1851 addressing just one layer of what turns out to have been
1852 doubly unsafe triple-checked locking.
1854 So now fix this for real by retiring the MONT_HELPER macro
1855 in crypto/rsa/rsa_eay.c.
1857 [Bodo Moeller; problem pointed out by Marius Schilder]
1859 *) Various precautionary measures:
1861 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1863 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1864 (NB: This would require knowledge of the secret session ticket key
1865 to exploit, in which case you'd be SOL either way.)
1867 - Change bn_nist.c so that it will properly handle input BIGNUMs
1868 outside the expected range.
1870 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1873 [Neel Mehta, Bodo Moeller]
1875 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1876 the load fails. Useful for distros.
1877 [Ben Laurie and the FreeBSD team]
1879 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1882 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1885 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1887 This work was sponsored by Logica.
1890 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1891 keystores. Support for SSL/TLS client authentication too.
1892 Not compiled unless enable-capieng specified to Configure.
1894 This work was sponsored by Logica.
1897 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1898 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1899 attribute creation routines such as certifcate requests and PKCS#12
1903 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1905 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1906 handshake which could lead to a cilent crash as found using the
1907 Codenomicon TLS test suite (CVE-2008-1672)
1908 [Steve Henson, Mark Cox]
1910 *) Fix double free in TLS server name extensions which could lead to
1911 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1914 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1916 Clear the error queue to ensure that error entries left from
1917 older function calls do not interfere with the correct operation.
1918 [Lutz Jaenicke, Erik de Castro Lopo]
1920 *) Remove root CA certificates of commercial CAs:
1922 The OpenSSL project does not recommend any specific CA and does not
1923 have any policy with respect to including or excluding any CA.
1924 Therefore it does not make any sense to ship an arbitrary selection
1925 of root CA certificates with the OpenSSL software.
1928 *) RSA OAEP patches to fix two separate invalid memory reads.
1929 The first one involves inputs when 'lzero' is greater than
1930 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1931 before the beginning of from). The second one involves inputs where
1932 the 'db' section contains nothing but zeroes (there is a one-byte
1933 invalid read after the end of 'db').
1934 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1936 *) Partial backport from 0.9.9-dev:
1938 Introduce bn_mul_mont (dedicated Montgomery multiplication
1939 procedure) as a candidate for BIGNUM assembler implementation.
1940 While 0.9.9-dev uses assembler for various architectures, only
1941 x86_64 is available by default here in the 0.9.8 branch, and
1942 32-bit x86 is available through a compile-time setting.
1944 To try the 32-bit x86 assembler implementation, use Configure
1945 option "enable-montasm" (which exists only for this backport).
1947 As "enable-montasm" for 32-bit x86 disclaims code stability
1948 anyway, in this constellation we activate additional code
1949 backported from 0.9.9-dev for further performance improvements,
1950 namely BN_from_montgomery_word. (To enable this otherwise,
1951 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1953 [Andy Polyakov (backport partially by Bodo Moeller)]
1955 *) Add TLS session ticket callback. This allows an application to set
1956 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1957 values. This is useful for key rollover for example where several key
1958 sets may exist with different names.
1961 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1962 This was broken until now in 0.9.8 releases, such that the only way
1963 a registered ENGINE could be used (assuming it initialises
1964 successfully on the host) was to explicitly set it as the default
1965 for the relevant algorithms. This is in contradiction with 0.9.7
1966 behaviour and the documentation. With this fix, when an ENGINE is
1967 registered into a given algorithm's table of implementations, the
1968 'uptodate' flag is reset so that auto-discovery will be used next
1969 time a new context for that algorithm attempts to select an
1971 [Ian Lister (tweaked by Geoff Thorpe)]
1973 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1974 implemention in the following ways:
1976 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1979 Lack of BER streaming support means one pass streaming processing is
1980 only supported if data is detached: setting the streaming flag is
1981 ignored for embedded content.
1983 CMS support is disabled by default and must be explicitly enabled
1984 with the enable-cms configuration option.
1987 *) Update the GMP engine glue to do direct copies between BIGNUM and
1988 mpz_t when openssl and GMP use the same limb size. Otherwise the
1989 existing "conversion via a text string export" trick is still used.
1990 [Paul Sheer <paulsheer@gmail.com>]
1992 *) Zlib compression BIO. This is a filter BIO which compressed and
1993 uncompresses any data passed through it.
1996 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1997 RFC3394 compatible AES key wrapping.
2000 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2001 sets string data without copying. X509_ALGOR_set0() and
2002 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2003 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2004 from an X509_ATTRIBUTE structure optionally checking it occurs only
2005 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2009 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2010 to get the expected BN_FLG_CONSTTIME behavior.
2011 [Bodo Moeller (Google)]
2015 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2016 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2017 - added some more tests to do_tests.pl
2018 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2019 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2020 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2021 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2022 - various changes to netware.pl to enable gcc-cross builds on Win32
2024 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2025 - various changes to fix missing prototype warnings
2026 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2027 - added AES, WHIRLPOOL and CPUID assembler code to build files
2028 - added missing AES assembler make rules to mk1mf.pl
2029 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2030 [Guenter Knauf <eflash@gmx.net>]
2032 *) Implement certificate status request TLS extension defined in RFC3546.
2033 A client can set the appropriate parameters and receive the encoded
2034 OCSP response via a callback. A server can query the supplied parameters
2035 and set the encoded OCSP response in the callback. Add simplified examples
2036 to s_client and s_server.
2039 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2041 *) Fix various bugs:
2042 + Binary incompatibility of ssl_ctx_st structure
2043 + DTLS interoperation with non-compliant servers
2044 + Don't call get_session_cb() without proposed session
2045 + Fix ia64 assembler code
2046 [Andy Polyakov, Steve Henson]
2048 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2050 *) DTLS Handshake overhaul. There were longstanding issues with
2051 OpenSSL DTLS implementation, which were making it impossible for
2052 RFC 4347 compliant client to communicate with OpenSSL server.
2053 Unfortunately just fixing these incompatibilities would "cut off"
2054 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2055 server keeps tolerating non RFC compliant syntax. The opposite is
2056 not true, 0.9.8f client can not communicate with earlier server.
2057 This update even addresses CVE-2007-4995.
2060 *) Changes to avoid need for function casts in OpenSSL: some compilers
2061 (gcc 4.2 and later) reject their use.
2062 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2065 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2066 RFC4507bis. The encrypted ticket format is an encrypted encoded
2067 SSL_SESSION structure, that way new session features are automatically
2070 If a client application caches session in an SSL_SESSION structure
2071 support is transparent because tickets are now stored in the encoded
2074 The SSL_CTX structure automatically generates keys for ticket
2075 protection in servers so again support should be possible
2076 with no application modification.
2078 If a client or server wishes to disable RFC4507 support then the option
2079 SSL_OP_NO_TICKET can be set.
2081 Add a TLS extension debugging callback to allow the contents of any client
2082 or server extensions to be examined.
2084 This work was sponsored by Google.
2087 *) Add initial support for TLS extensions, specifically for the server_name
2088 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2089 have new members for a host name. The SSL data structure has an
2090 additional member SSL_CTX *initial_ctx so that new sessions can be
2091 stored in that context to allow for session resumption, even after the
2092 SSL has been switched to a new SSL_CTX in reaction to a client's
2093 server_name extension.
2095 New functions (subject to change):
2097 SSL_get_servername()
2098 SSL_get_servername_type()
2101 New CTRL codes and macros (subject to change):
2103 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2104 - SSL_CTX_set_tlsext_servername_callback()
2105 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2106 - SSL_CTX_set_tlsext_servername_arg()
2107 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2109 openssl s_client has a new '-servername ...' option.
2111 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2112 '-key2 ...', '-servername_fatal' (subject to change). This allows
2113 testing the HostName extension for a specific single host name ('-cert'
2114 and '-key' remain fallbacks for handshakes without HostName
2115 negotiation). If the unrecogninzed_name alert has to be sent, this by
2116 default is a warning; it becomes fatal with the '-servername_fatal'
2119 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2121 *) Add AES and SSE2 assembly language support to VC++ build.
2124 *) Mitigate attack on final subtraction in Montgomery reduction.
2127 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2128 (which previously caused an internal error).
2131 *) Squeeze another 10% out of IGE mode when in != out.
2134 *) AES IGE mode speedup.
2135 [Dean Gaudet (Google)]
2137 *) Add the Korean symmetric 128-bit cipher SEED (see
2138 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2139 add SEED ciphersuites from RFC 4162:
2141 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2142 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2143 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2144 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2146 To minimize changes between patchlevels in the OpenSSL 0.9.8
2147 series, SEED remains excluded from compilation unless OpenSSL
2148 is configured with 'enable-seed'.
2149 [KISA, Bodo Moeller]
2151 *) Mitigate branch prediction attacks, which can be practical if a
2152 single processor is shared, allowing a spy process to extract
2153 information. For detailed background information, see
2154 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2155 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2156 and Necessary Software Countermeasures"). The core of the change
2157 are new versions BN_div_no_branch() and
2158 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2159 respectively, which are slower, but avoid the security-relevant
2160 conditional branches. These are automatically called by BN_div()
2161 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2162 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2163 remove a conditional branch.
2165 BN_FLG_CONSTTIME is the new name for the previous
2166 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2167 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2168 in the exponent causes BN_mod_exp_mont() to use the alternative
2169 implementation in BN_mod_exp_mont_consttime().) The old name
2170 remains as a deprecated alias.
2172 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2173 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2174 constant-time implementations for more than just exponentiation.
2175 Here too the old name is kept as a deprecated alias.
2177 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2178 the BN_BLINDING structure gets an independent copy of the
2179 modulus. This means that the previous "BIGNUM *m" argument to
2180 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2181 essentially becomes "const BIGNUM *m", although we can't actually
2182 change this in the header file before 0.9.9. It allows
2183 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2184 enable BN_FLG_CONSTTIME.
2186 [Matthew D Wood (Intel Corp)]
2188 *) In the SSL/TLS server implementation, be strict about session ID
2189 context matching (which matters if an application uses a single
2190 external cache for different purposes). Previously,
2191 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2192 set. This did ensure strict client verification, but meant that,
2193 with applications using a single external cache for quite
2194 different requirements, clients could circumvent ciphersuite
2195 restrictions for a given session ID context by starting a session
2196 in a different context.
2199 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2200 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2201 authentication-only ciphersuites.
2204 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2205 not complete and could lead to a possible single byte overflow
2206 (CVE-2007-5135) [Ben Laurie]
2208 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2210 *) Since AES128 and AES256 (and similarly Camellia128 and
2211 Camellia256) share a single mask bit in the logic of
2212 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2213 kludge to work properly if AES128 is available and AES256 isn't
2214 (or if Camellia128 is available and Camellia256 isn't).
2217 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2218 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2219 When a point or a seed is encoded in a BIT STRING, we need to
2220 prevent the removal of trailing zero bits to get the proper DER
2221 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2222 of a NamedBitList, for which trailing 0 bits need to be removed.)
2225 *) Have SSL/TLS server implementation tolerate "mismatched" record
2226 protocol version while receiving ClientHello even if the
2227 ClientHello is fragmented. (The server can't insist on the
2228 particular protocol version it has chosen before the ServerHello
2229 message has informed the client about his choice.)
2232 *) Add RFC 3779 support.
2233 [Rob Austein for ARIN, Ben Laurie]
2235 *) Load error codes if they are not already present instead of using a
2236 static variable. This allows them to be cleanly unloaded and reloaded.
2237 Improve header file function name parsing.
2240 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2241 or CAPABILITY handshake as required by RFCs.
2244 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2246 *) Introduce limits to prevent malicious keys being able to
2247 cause a denial of service. (CVE-2006-2940)
2248 [Steve Henson, Bodo Moeller]
2250 *) Fix ASN.1 parsing of certain invalid structures that can result
2251 in a denial of service. (CVE-2006-2937) [Steve Henson]
2253 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2254 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2256 *) Fix SSL client code which could crash if connecting to a
2257 malicious SSLv2 server. (CVE-2006-4343)
2258 [Tavis Ormandy and Will Drewry, Google Security Team]
2260 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2261 match only those. Before that, "AES256-SHA" would be interpreted
2262 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2263 the same strength classification in 0.9.7h) as we currently only
2264 have a single AES bit in the ciphersuite description bitmap.
2265 That change, however, also applied to ciphersuite strings such as
2266 "RC4-MD5" that intentionally matched multiple ciphersuites --
2267 namely, SSL 2.0 ciphersuites in addition to the more common ones
2268 from SSL 3.0/TLS 1.0.
2270 So we change the selection algorithm again: Naming an explicit
2271 ciphersuite selects this one ciphersuite, and any other similar
2272 ciphersuite (same bitmap) from *other* protocol versions.
2273 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2274 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2276 Since SSL 2.0 does not have any ciphersuites for which the
2277 128/256 bit distinction would be relevant, this works for now.
2278 The proper fix will be to use different bits for AES128 and
2279 AES256, which would have avoided the problems from the beginning;
2280 however, bits are scarce, so we can only do this in a new release
2281 (not just a patchlevel) when we can change the SSL_CIPHER
2282 definition to split the single 'unsigned long mask' bitmap into
2283 multiple values to extend the available space.
2287 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2289 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2290 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2292 *) Add AES IGE and biIGE modes.
2295 *) Change the Unix randomness entropy gathering to use poll() when
2296 possible instead of select(), since the latter has some
2297 undesirable limitations.
2298 [Darryl Miles via Richard Levitte and Bodo Moeller]
2300 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2301 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2302 cannot be implicitly activated as part of, e.g., the "AES" alias.
2303 However, please upgrade to OpenSSL 0.9.9[-dev] for
2304 non-experimental use of the ECC ciphersuites to get TLS extension
2305 support, which is required for curve and point format negotiation
2306 to avoid potential handshake problems.
2309 *) Disable rogue ciphersuites:
2311 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2312 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2313 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2315 The latter two were purportedly from
2316 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2319 Also deactivate the remaining ciphersuites from
2320 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2321 unofficial, and the ID has long expired.
2324 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2325 dual-core machines) and other potential thread-safety issues.
2328 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2329 versions), which is now available for royalty-free use
2330 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2331 Also, add Camellia TLS ciphersuites from RFC 4132.
2333 To minimize changes between patchlevels in the OpenSSL 0.9.8
2334 series, Camellia remains excluded from compilation unless OpenSSL
2335 is configured with 'enable-camellia'.
2338 *) Disable the padding bug check when compression is in use. The padding
2339 bug check assumes the first packet is of even length, this is not
2340 necessarily true if compresssion is enabled and can result in false
2341 positives causing handshake failure. The actual bug test is ancient
2342 code so it is hoped that implementations will either have fixed it by
2343 now or any which still have the bug do not support compression.
2346 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2348 *) When applying a cipher rule check to see if string match is an explicit
2349 cipher suite and only match that one cipher suite if it is.
2352 *) Link in manifests for VC++ if needed.
2353 [Austin Ziegler <halostatue@gmail.com>]
2355 *) Update support for ECC-based TLS ciphersuites according to
2356 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2357 TLS extensions, which are supported starting with the 0.9.9
2358 branch, not in the OpenSSL 0.9.8 branch).
2361 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2362 opaque EVP_CIPHER_CTX handling.
2365 *) Fixes and enhancements to zlib compression code. We now only use
2366 "zlib1.dll" and use the default __cdecl calling convention on Win32
2367 to conform with the standards mentioned here:
2368 http://www.zlib.net/DLL_FAQ.txt
2369 Static zlib linking now works on Windows and the new --with-zlib-include
2370 --with-zlib-lib options to Configure can be used to supply the location
2371 of the headers and library. Gracefully handle case where zlib library
2375 *) Several fixes and enhancements to the OID generation code. The old code
2376 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2377 handle numbers larger than ULONG_MAX, truncated printing and had a
2378 non standard OBJ_obj2txt() behaviour.
2381 *) Add support for building of engines under engine/ as shared libraries
2382 under VC++ build system.
2385 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2386 Hopefully, we will not see any false combination of paths any more.
2389 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2391 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2392 (part of SSL_OP_ALL). This option used to disable the
2393 countermeasure against man-in-the-middle protocol-version
2394 rollback in the SSL 2.0 server implementation, which is a bad
2395 idea. (CVE-2005-2969)
2397 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2398 for Information Security, National Institute of Advanced Industrial
2399 Science and Technology [AIST], Japan)]
2401 *) Add two function to clear and return the verify parameter flags.
2404 *) Keep cipherlists sorted in the source instead of sorting them at
2405 runtime, thus removing the need for a lock.
2408 *) Avoid some small subgroup attacks in Diffie-Hellman.
2409 [Nick Mathewson and Ben Laurie]
2411 *) Add functions for well-known primes.
2414 *) Extended Windows CE support.
2415 [Satoshi Nakamura and Andy Polyakov]
2417 *) Initialize SSL_METHOD structures at compile time instead of during
2418 runtime, thus removing the need for a lock.
2421 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2422 attempting to decrypt each encrypted key in turn. Add support to
2426 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2428 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2431 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2434 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2435 key into the same file any more.
2438 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2441 *) Add -utf8 command line and config file option to 'ca'.
2442 [Stefan <stf@udoma.org]
2444 *) Removed the macro des_crypt(), as it seems to conflict with some
2445 libraries. Use DES_crypt().
2448 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2449 involves renaming the source and generated shared-libs for
2450 both. The engines will accept the corrected or legacy ids
2451 ('ncipher' and '4758_cca' respectively) when binding. NB,
2452 this only applies when building 'shared'.
2453 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2455 *) Add attribute functions to EVP_PKEY structure. Modify
2456 PKCS12_create() to recognize a CSP name attribute and
2457 use it. Make -CSP option work again in pkcs12 utility.
2460 *) Add new functionality to the bn blinding code:
2461 - automatic re-creation of the BN_BLINDING parameters after
2462 a fixed number of uses (currently 32)
2463 - add new function for parameter creation
2464 - introduce flags to control the update behaviour of the
2465 BN_BLINDING parameters
2466 - hide BN_BLINDING structure
2467 Add a second BN_BLINDING slot to the RSA structure to improve
2468 performance when a single RSA object is shared among several
2472 *) Add support for DTLS.
2473 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2475 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2476 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2479 *) Remove buggy and incompletet DH cert support from
2480 ssl/ssl_rsa.c and ssl/s3_both.c
2483 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2484 the apps/openssl applications.
2487 *) Compile clean with "-Wall -Wmissing-prototypes
2488 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2489 DEBUG_SAFESTACK must also be set.
2492 *) Change ./Configure so that certain algorithms can be disabled by default.
2493 The new counterpiece to "no-xxx" is "enable-xxx".
2495 The patented RC5 and MDC2 algorithms will now be disabled unless
2496 "enable-rc5" and "enable-mdc2", respectively, are specified.
2498 (IDEA remains enabled despite being patented. This is because IDEA
2499 is frequently required for interoperability, and there is no license
2500 fee for non-commercial use. As before, "no-idea" can be used to
2501 avoid this algorithm.)
2505 *) Add processing of proxy certificates (see RFC 3820). This work was
2506 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2507 EGEE (Enabling Grids for E-science in Europe).
2510 *) RC4 performance overhaul on modern architectures/implementations, such
2511 as Intel P4, IA-64 and AMD64.
2514 *) New utility extract-section.pl. This can be used specify an alternative
2515 section number in a pod file instead of having to treat each file as
2516 a separate case in Makefile. This can be done by adding two lines to the
2519 =for comment openssl_section:XXX
2521 The blank line is mandatory.
2525 *) New arguments -certform, -keyform and -pass for s_client and s_server
2526 to allow alternative format key and certificate files and passphrase
2530 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2531 update associated structures and add various utility functions.
2533 Add new policy related verify parameters, include policy checking in
2534 standard verify code. Enhance 'smime' application with extra parameters
2535 to support policy checking and print out.
2538 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2539 Nehemiah processors. These extensions support AES encryption in hardware
2540 as well as RNG (though RNG support is currently disabled).
2541 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2543 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2546 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2547 [Andy Polyakov and a number of other people]
2549 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2550 implementation contributed by IBM.
2551 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2553 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2554 exponent rather than 'unsigned long'. There is a corresponding change to
2555 the new 'rsa_keygen' element of the RSA_METHOD structure.
2556 [Jelte Jansen, Geoff Thorpe]
2558 *) Functionality for creating the initial serial number file is now
2559 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2561 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2562 number file to 1, which is bound to cause problems. To avoid
2563 the problems while respecting compatibility between different 0.9.7
2564 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2565 CA.pl for serial number initialization. With the new release 0.9.8,
2566 we can fix the problem directly in the 'ca' utility.)
2569 *) Reduced header interdepencies by declaring more opaque objects in
2570 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2571 give fewer recursive includes, which could break lazy source code - so
2572 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2573 developers should define this symbol when building and using openssl to
2574 ensure they track the recommended behaviour, interfaces, [etc], but
2575 backwards-compatible behaviour prevails when this isn't defined.
2578 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2581 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2582 This will generate a random key of the appropriate length based on the
2583 cipher context. The EVP_CIPHER can provide its own random key generation
2584 routine to support keys of a specific form. This is used in the des and
2585 3des routines to generate a key of the correct parity. Update S/MIME
2586 code to use new functions and hence generate correct parity DES keys.
2587 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2588 valid (weak or incorrect parity).
2591 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2592 as looking them up. This is useful when the verified structure may contain
2593 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2594 present unless the new PKCS7_NO_CRL flag is asserted.
2597 *) Extend ASN1 oid configuration module. It now additionally accepts the
2600 shortName = some long name, 1.2.3.4
2603 *) Reimplemented the BN_CTX implementation. There is now no more static
2604 limitation on the number of variables it can handle nor the depth of the
2605 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2606 information can now expand as required, and rather than having a single
2607 static array of bignums, BN_CTX now uses a linked-list of such arrays
2608 allowing it to expand on demand whilst maintaining the usefulness of
2609 BN_CTX's "bundling".
2612 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2613 to allow all RSA operations to function using a single BN_CTX.
2616 *) Preliminary support for certificate policy evaluation and checking. This
2617 is initially intended to pass the tests outlined in "Conformance Testing
2618 of Relying Party Client Certificate Path Processing Logic" v1.07.
2621 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2622 remained unused and not that useful. A variety of other little bignum
2623 tweaks and fixes have also been made continuing on from the audit (see
2627 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2628 associated ASN1, EVP and SSL functions and old ASN1 macros.
2631 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2632 and this should never fail. So the return value from the use of
2633 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2634 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2637 *) BN_CTX_get() should return zero-valued bignums, providing the same
2638 initialised value as BN_new().
2639 [Geoff Thorpe, suggested by Ulf Möller]
2641 *) Support for inhibitAnyPolicy certificate extension.
2644 *) An audit of the BIGNUM code is underway, for which debugging code is
2645 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2646 is considered valid when processing BIGNUMs, and causes execution to
2647 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2648 further steps are taken to deliberately pollute unused data in BIGNUM
2649 structures to try and expose faulty code further on. For now, openssl will
2650 (in its default mode of operation) continue to tolerate the inconsistent
2651 forms that it has tolerated in the past, but authors and packagers should
2652 consider trying openssl and their own applications when compiled with
2653 these debugging symbols defined. It will help highlight potential bugs in
2654 their own code, and will improve the test coverage for OpenSSL itself. At
2655 some point, these tighter rules will become openssl's default to improve
2656 maintainability, though the assert()s and other overheads will remain only
2657 in debugging configurations. See bn.h for more details.
2658 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2660 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2661 that can only be obtained through BN_CTX_new() (which implicitly
2662 initialises it). The presence of this function only made it possible
2663 to overwrite an existing structure (and cause memory leaks).
2666 *) Because of the callback-based approach for implementing LHASH as a
2667 template type, lh_insert() adds opaque objects to hash-tables and
2668 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2669 to clean up those corresponding objects before destroying the hash table
2670 (and losing the object pointers). So some over-zealous constifications in
2671 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2672 objects as "const" and the lh_doall[_arg] callback wrappers are not
2673 prototyped to have "const" restrictions on the object pointers they are
2674 given (and so aren't required to cast them away any more).
2677 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2678 (speed) prefers to use its own implementation. The two implementations
2679 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2680 its object type properly exposed (MS_TM) instead of casting to/from "char
2681 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2682 aren't necessarily the greatest nomenclatures - but this is what was used
2683 internally to the implementation so I've used that for now.
2686 *) Ensure that deprecated functions do not get compiled when
2687 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2688 the self-tests were still using deprecated key-generation functions so
2689 these have been updated also.
2692 *) Reorganise PKCS#7 code to separate the digest location functionality
2693 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2694 New function PKCS7_set_digest() to set the digest type for PKCS#7
2695 digestedData type. Add additional code to correctly generate the
2696 digestedData type and add support for this type in PKCS7 initialization
2700 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2701 structure of type "other".
2704 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2705 sure the loop does correctly stop and breaking ("division by zero")
2706 modulus operations are not performed. The (pre-generated) prime
2707 table crypto/bn/bn_prime.h was already correct, but it could not be
2708 re-generated on some platforms because of the "division by zero"
2709 situation in the script.
2710 [Ralf S. Engelschall]
2712 *) Update support for ECC-based TLS ciphersuites according to
2713 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2714 SHA-1 now is only used for "small" curves (where the
2715 representation of a field element takes up to 24 bytes); for
2716 larger curves, the field element resulting from ECDH is directly
2717 used as premaster secret.
2718 [Douglas Stebila (Sun Microsystems Laboratories)]
2720 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2721 curve secp160r1 to the tests.
2722 [Douglas Stebila (Sun Microsystems Laboratories)]
2724 *) Add the possibility to load symbols globally with DSO.
2725 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2727 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2728 control of the error stack.
2731 *) Add support for STORE in ENGINE.
2734 *) Add the STORE type. The intention is to provide a common interface
2735 to certificate and key stores, be they simple file-based stores, or
2736 HSM-type store, or LDAP stores, or...
2737 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2740 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2741 pass a list of arguments to any function as well as provide a way
2742 for a function to pass data back to the caller.
2745 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2746 works like BUF_strdup() but can be used to duplicate a portion of
2747 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2751 *) Add the function sk_find_ex() which works like sk_find(), but will
2752 return an index to an element even if an exact match couldn't be
2753 found. The index is guaranteed to point at the element where the
2754 searched-for key would be inserted to preserve sorting order.
2757 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2758 takes an extra flags argument for optional functionality. Currently,
2759 the following flags are defined:
2761 OBJ_BSEARCH_VALUE_ON_NOMATCH
2762 This one gets OBJ_bsearch_ex() to return a pointer to the first
2763 element where the comparing function returns a negative or zero
2766 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2767 This one gets OBJ_bsearch_ex() to return a pointer to the first
2768 element where the comparing function returns zero. This is useful
2769 if there are more than one element where the comparing function
2773 *) Make it possible to create self-signed certificates with 'openssl ca'
2774 in such a way that the self-signed certificate becomes part of the
2775 CA database and uses the same mechanisms for serial number generation
2776 as all other certificate signing. The new flag '-selfsign' enables
2777 this functionality. Adapt CA.sh and CA.pl.in.
2780 *) Add functionality to check the public key of a certificate request
2781 against a given private. This is useful to check that a certificate
2782 request can be signed by that key (self-signing).
2785 *) Make it possible to have multiple active certificates with the same
2786 subject in the CA index file. This is done only if the keyword
2787 'unique_subject' is set to 'no' in the main CA section (default
2788 if 'CA_default') of the configuration file. The value is saved
2789 with the database itself in a separate index attribute file,
2790 named like the index file with '.attr' appended to the name.
2793 *) Generate muti valued AVAs using '+' notation in config files for
2797 *) Support for nameConstraints certificate extension.
2800 *) Support for policyConstraints certificate extension.
2803 *) Support for policyMappings certificate extension.
2806 *) Make sure the default DSA_METHOD implementation only uses its
2807 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2808 and change its own handlers to be NULL so as to remove unnecessary
2809 indirection. This lets alternative implementations fallback to the
2810 default implementation more easily.
2813 *) Support for directoryName in GeneralName related extensions
2817 *) Make it possible to link applications using Makefile.shared.
2818 Make that possible even when linking against static libraries!
2821 *) Support for single pass processing for S/MIME signing. This now
2822 means that S/MIME signing can be done from a pipe, in addition
2823 cleartext signing (multipart/signed type) is effectively streaming
2824 and the signed data does not need to be all held in memory.
2826 This is done with a new flag PKCS7_STREAM. When this flag is set
2827 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2828 is done after the data is output (and digests calculated) in
2829 SMIME_write_PKCS7().
2832 *) Add full support for -rpath/-R, both in shared libraries and
2833 applications, at least on the platforms where it's known how
2837 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2838 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2839 will now compute a table of multiples of the generator that
2840 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2841 faster (notably in the case of a single point multiplication,
2842 scalar * generator).
2843 [Nils Larsch, Bodo Moeller]
2845 *) IPv6 support for certificate extensions. The various extensions
2846 which use the IP:a.b.c.d can now take IPv6 addresses using the
2847 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2851 *) Added an ENGINE that implements RSA by performing private key
2852 exponentiations with the GMP library. The conversions to and from
2853 GMP's mpz_t format aren't optimised nor are any montgomery forms
2854 cached, and on x86 it appears OpenSSL's own performance has caught up.
2855 However there are likely to be other architectures where GMP could
2856 provide a boost. This ENGINE is not built in by default, but it can be
2857 specified at Configure time and should be accompanied by the necessary
2858 linker additions, eg;
2859 ./config -DOPENSSL_USE_GMP -lgmp
2862 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2863 testing availability of engines with "-t" - the old behaviour is
2864 produced by increasing the feature's verbosity with "-tt".
2867 *) ECDSA routines: under certain error conditions uninitialized BN objects
2868 could be freed. Solution: make sure initialization is performed early
2869 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2873 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2874 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2875 software implementations. For DSA and DH, parameter generation can
2876 also be overriden by providing the appropriate method callbacks.
2879 *) Change the "progress" mechanism used in key-generation and
2880 primality testing to functions that take a new BN_GENCB pointer in
2881 place of callback/argument pairs. The new API functions have "_ex"
2882 postfixes and the older functions are reimplemented as wrappers for
2883 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2884 declarations of the old functions to help (graceful) attempts to
2885 migrate to the new functions. Also, the new key-generation API
2886 functions operate on a caller-supplied key-structure and return
2887 success/failure rather than returning a key or NULL - this is to
2888 help make "keygen" another member function of RSA_METHOD etc.
2890 Example for using the new callback interface:
2892 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2896 BN_GENCB_set(&my_cb, my_callback, my_arg);
2898 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2899 /* For the meaning of a, b in calls to my_callback(), see the
2900 * documentation of the function that calls the callback.
2901 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2902 * my_callback should return 1 if it wants BN_is_prime_ex()
2903 * to continue, or 0 to stop.
2908 *) Change the ZLIB compression method to be stateful, and make it
2909 available to TLS with the number defined in
2910 draft-ietf-tls-compression-04.txt.
2913 *) Add the ASN.1 structures and functions for CertificatePair, which
2914 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2916 CertificatePair ::= SEQUENCE {
2917 forward [0] Certificate OPTIONAL,
2918 reverse [1] Certificate OPTIONAL,
2919 -- at least one of the pair shall be present -- }
2921 Also implement the PEM functions to read and write certificate
2922 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2924 This needed to be defined, mostly for the sake of the LDAP
2925 attribute crossCertificatePair, but may prove useful elsewhere as
2929 *) Make it possible to inhibit symlinking of shared libraries in
2930 Makefile.shared, for Cygwin's sake.
2933 *) Extend the BIGNUM API by creating a function
2934 void BN_set_negative(BIGNUM *a, int neg);
2935 and a macro that behave like
2936 int BN_is_negative(const BIGNUM *a);
2938 to avoid the need to access 'a->neg' directly in applications.
2941 *) Implement fast modular reduction for pseudo-Mersenne primes
2942 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2943 EC_GROUP_new_curve_GFp() will now automatically use this
2945 [Nils Larsch <nla@trustcenter.de>]
2947 *) Add new lock type (CRYPTO_LOCK_BN).
2950 *) Change the ENGINE framework to automatically load engines
2951 dynamically from specific directories unless they could be
2952 found to already be built in or loaded. Move all the
2953 current engines except for the cryptodev one to a new
2955 The engines in engines/ are built as shared libraries if
2956 the "shared" options was given to ./Configure or ./config.
2957 Otherwise, they are inserted in libcrypto.a.
2958 /usr/local/ssl/engines is the default directory for dynamic
2959 engines, but that can be overriden at configure time through
2960 the usual use of --prefix and/or --openssldir, and at run
2961 time with the environment variable OPENSSL_ENGINES.
2962 [Geoff Thorpe and Richard Levitte]
2964 *) Add Makefile.shared, a helper makefile to build shared
2965 libraries. Addapt Makefile.org.
2968 *) Add version info to Win32 DLLs.
2969 [Peter 'Luna' Runestig" <peter@runestig.com>]
2971 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2972 can be added using this API to created arbitrary PKCS#12
2973 files while avoiding the low level API.
2975 New options to PKCS12_create(), key or cert can be NULL and
2976 will then be omitted from the output file. The encryption
2977 algorithm NIDs can be set to -1 for no encryption, the mac
2978 iteration count can be set to 0 to omit the mac.
2980 Enhance pkcs12 utility by making the -nokeys and -nocerts
2981 options work when creating a PKCS#12 file. New option -nomac
2982 to omit the mac, NONE can be set for an encryption algorithm.
2983 New code is modified to use the enhanced PKCS12_create()
2984 instead of the low level API.
2987 *) Extend ASN1 encoder to support indefinite length constructed
2988 encoding. This can output sequences tags and octet strings in
2989 this form. Modify pk7_asn1.c to support indefinite length
2990 encoding. This is experimental and needs additional code to
2991 be useful, such as an ASN1 bio and some enhanced streaming
2994 Extend template encode functionality so that tagging is passed
2995 down to the template encoder.
2998 *) Let 'openssl req' fail if an argument to '-newkey' is not
2999 recognized instead of using RSA as a default.
3002 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3003 As these are not official, they are not included in "ALL";
3004 the "ECCdraft" ciphersuite group alias can be used to select them.
3005 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3007 *) Add ECDH engine support.
3008 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3010 *) Add ECDH in new directory crypto/ecdh/.
3011 [Douglas Stebila (Sun Microsystems Laboratories)]
3013 *) Let BN_rand_range() abort with an error after 100 iterations
3014 without success (which indicates a broken PRNG).
3017 *) Change BN_mod_sqrt() so that it verifies that the input value
3018 is really the square of the return value. (Previously,
3019 BN_mod_sqrt would show GIGO behaviour.)
3022 *) Add named elliptic curves over binary fields from X9.62, SECG,
3023 and WAP/WTLS; add OIDs that were still missing.
3025 [Sheueling Chang Shantz and Douglas Stebila
3026 (Sun Microsystems Laboratories)]
3028 *) Extend the EC library for elliptic curves over binary fields
3029 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3032 EC_GF2m_simple_method
3036 EC_GROUP_new_curve_GF2m
3037 EC_GROUP_set_curve_GF2m
3038 EC_GROUP_get_curve_GF2m
3039 EC_POINT_set_affine_coordinates_GF2m
3040 EC_POINT_get_affine_coordinates_GF2m
3041 EC_POINT_set_compressed_coordinates_GF2m
3043 Point compression for binary fields is disabled by default for
3044 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3047 As binary polynomials are represented as BIGNUMs, various members
3048 of the EC_GROUP and EC_POINT data structures can be shared
3049 between the implementations for prime fields and binary fields;
3050 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3051 are essentially identical to their ..._GFp counterparts.
3052 (For simplicity, the '..._GFp' prefix has been dropped from
3053 various internal method names.)
3055 An internal 'field_div' method (similar to 'field_mul' and
3056 'field_sqr') has been added; this is used only for binary fields.
3058 [Sheueling Chang Shantz and Douglas Stebila
3059 (Sun Microsystems Laboratories)]
3061 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3062 through methods ('mul', 'precompute_mult').
3064 The generic implementations (now internally called 'ec_wNAF_mul'
3065 and 'ec_wNAF_precomputed_mult') remain the default if these
3066 methods are undefined.
3068 [Sheueling Chang Shantz and Douglas Stebila
3069 (Sun Microsystems Laboratories)]
3071 *) New function EC_GROUP_get_degree, which is defined through
3072 EC_METHOD. For curves over prime fields, this returns the bit
3073 length of the modulus.
3075 [Sheueling Chang Shantz and Douglas Stebila
3076 (Sun Microsystems Laboratories)]
3078 *) New functions EC_GROUP_dup, EC_POINT_dup.
3079 (These simply call ..._new and ..._copy).
3081 [Sheueling Chang Shantz and Douglas Stebila
3082 (Sun Microsystems Laboratories)]
3084 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3085 Polynomials are represented as BIGNUMs (where the sign bit is not
3086 used) in the following functions [macros]:
3089 BN_GF2m_sub [= BN_GF2m_add]
3090 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3091 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3092 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3094 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3095 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3096 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3097 BN_GF2m_cmp [= BN_ucmp]
3099 (Note that only the 'mod' functions are actually for fields GF(2^m).
3100 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3102 For some functions, an the irreducible polynomial defining a
3103 field can be given as an 'unsigned int[]' with strictly
3104 decreasing elements giving the indices of those bits that are set;
3105 i.e., p[] represents the polynomial
3106 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3108 p[0] > p[1] > ... > p[k] = 0.
3109 This applies to the following functions:
3114 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3115 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3117 BN_GF2m_mod_sqrt_arr
3118 BN_GF2m_mod_solve_quad_arr
3122 Conversion can be performed by the following functions:
3127 bntest.c has additional tests for binary polynomial arithmetic.
3129 Two implementations for BN_GF2m_mod_div() are available.
3130 The default algorithm simply uses BN_GF2m_mod_inv() and
3131 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3132 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3133 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3135 [Sheueling Chang Shantz and Douglas Stebila
3136 (Sun Microsystems Laboratories)]
3138 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3139 functionality is disabled at compile-time.
3140 [Douglas Stebila <douglas.stebila@sun.com>]
3142 *) Change default behaviour of 'openssl asn1parse' so that more
3143 information is visible when viewing, e.g., a certificate:
3145 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3146 mode the content of non-printable OCTET STRINGs is output in a
3147 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3148 avoid the appearance of a printable string.
3149 [Nils Larsch <nla@trustcenter.de>]
3151 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3153 EC_GROUP_set_asn1_flag()
3154 EC_GROUP_get_asn1_flag()
3155 EC_GROUP_set_point_conversion_form()
3156 EC_GROUP_get_point_conversion_form()
3157 These control ASN1 encoding details:
3158 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3159 has been set to OPENSSL_EC_NAMED_CURVE.
3160 - Points are encoded in uncompressed form by default; options for
3161 asn1_for are as for point2oct, namely
3162 POINT_CONVERSION_COMPRESSED
3163 POINT_CONVERSION_UNCOMPRESSED
3164 POINT_CONVERSION_HYBRID
3166 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3169 EC_GROUP_get0_seed()
3170 EC_GROUP_get_seed_len()
3171 This is used only for ASN1 purposes (so far).
3172 [Nils Larsch <nla@trustcenter.de>]
3174 *) Add 'field_type' member to EC_METHOD, which holds the NID
3175 of the appropriate field type OID. The new function
3176 EC_METHOD_get_field_type() returns this value.
3177 [Nils Larsch <nla@trustcenter.de>]
3182 EC_POINT_point2hex()
3183 EC_POINT_hex2point()
3184 providing useful interfaces to EC_POINT_point2oct() and
3185 EC_POINT_oct2point().
3186 [Nils Larsch <nla@trustcenter.de>]
3188 *) Change internals of the EC library so that the functions
3189 EC_GROUP_set_generator()
3190 EC_GROUP_get_generator()
3191 EC_GROUP_get_order()
3192 EC_GROUP_get_cofactor()
3193 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3194 to methods, which would lead to unnecessary code duplication when
3195 adding different types of curves.
3196 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3198 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3199 arithmetic, and such that modified wNAFs are generated
3200 (which avoid length expansion in many cases).
3203 *) Add a function EC_GROUP_check_discriminant() (defined via
3204 EC_METHOD) that verifies that the curve discriminant is non-zero.
3206 Add a function EC_GROUP_check() that makes some sanity tests
3207 on a EC_GROUP, its generator and order. This includes
3208 EC_GROUP_check_discriminant().
3209 [Nils Larsch <nla@trustcenter.de>]
3211 *) Add ECDSA in new directory crypto/ecdsa/.
3213 Add applications 'openssl ecparam' and 'openssl ecdsa'
3214 (these are based on 'openssl dsaparam' and 'openssl dsa').
3216 ECDSA support is also included in various other files across the
3217 library. Most notably,
3218 - 'openssl req' now has a '-newkey ecdsa:file' option;
3219 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3220 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3221 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3222 them suitable for ECDSA where domain parameters must be
3223 extracted before the specific public key;
3224 - ECDSA engine support has been added.
3225 [Nils Larsch <nla@trustcenter.de>]
3227 *) Include some named elliptic curves, and add OIDs from X9.62,
3228 SECG, and WAP/WTLS. Each curve can be obtained from the new
3230 EC_GROUP_new_by_curve_name(),
3231 and the list of available named curves can be obtained with
3232 EC_get_builtin_curves().
3233 Also add a 'curve_name' member to EC_GROUP objects, which can be
3235 EC_GROUP_set_curve_name()
3236 EC_GROUP_get_curve_name()
3237 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3239 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3240 was actually never needed) and in BN_mul(). The removal in BN_mul()
3241 required a small change in bn_mul_part_recursive() and the addition
3242 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3243 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3244 bn_sub_words() and bn_add_words() except they take arrays with
3248 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3250 *) Cleanse PEM buffers before freeing them since they may contain
3252 [Benjamin Bennett <ben@psc.edu>]
3254 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3255 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3256 authentication-only ciphersuites.
3259 *) Since AES128 and AES256 share a single mask bit in the logic of
3260 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3261 kludge to work properly if AES128 is available and AES256 isn't.
3264 *) Expand security boundary to match 1.1.1 module.
3267 *) Remove redundant features: hash file source, editing of test vectors
3268 modify fipsld to use external fips_premain.c signature.
3271 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3272 run algorithm test programs.
3275 *) Make algorithm test programs more tolerant of whitespace.
3278 *) Have SSL/TLS server implementation tolerate "mismatched" record
3279 protocol version while receiving ClientHello even if the
3280 ClientHello is fragmented. (The server can't insist on the
3281 particular protocol version it has chosen before the ServerHello
3282 message has informed the client about his choice.)
3285 *) Load error codes if they are not already present instead of using a
3286 static variable. This allows them to be cleanly unloaded and reloaded.
3289 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3291 *) Introduce limits to prevent malicious keys being able to
3292 cause a denial of service. (CVE-2006-2940)
3293 [Steve Henson, Bodo Moeller]
3295 *) Fix ASN.1 parsing of certain invalid structures that can result
3296 in a denial of service. (CVE-2006-2937) [Steve Henson]
3298 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3299 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3301 *) Fix SSL client code which could crash if connecting to a
3302 malicious SSLv2 server. (CVE-2006-4343)
3303 [Tavis Ormandy and Will Drewry, Google Security Team]
3305 *) Change ciphersuite string processing so that an explicit
3306 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3307 will no longer include "AES128-SHA"), and any other similar
3308 ciphersuite (same bitmap) from *other* protocol versions (so that
3309 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3310 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3311 changes from 0.9.8b and 0.9.8d.
3314 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3316 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3317 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3319 *) Change the Unix randomness entropy gathering to use poll() when
3320 possible instead of select(), since the latter has some
3321 undesirable limitations.
3322 [Darryl Miles via Richard Levitte and Bodo Moeller]
3324 *) Disable rogue ciphersuites:
3326 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3327 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3328 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3330 The latter two were purportedly from
3331 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3334 Also deactive the remaining ciphersuites from
3335 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3336 unofficial, and the ID has long expired.
3339 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3340 dual-core machines) and other potential thread-safety issues.
3343 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3345 *) Adapt fipsld and the build system to link against the validated FIPS
3346 module in FIPS mode.
3349 *) Fixes for VC++ 2005 build under Windows.
3352 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3353 from a Windows bash shell such as MSYS. It is autodetected from the
3354 "config" script when run from a VC++ environment. Modify standard VC++
3355 build to use fipscanister.o from the GNU make build.
3358 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3360 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3361 The value now differs depending on if you build for FIPS or not.
3362 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3363 safely run with a non-FIPSed libcrypto, as it may crash because of
3364 the difference induced by this change.
3367 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3369 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3370 (part of SSL_OP_ALL). This option used to disable the
3371 countermeasure against man-in-the-middle protocol-version
3372 rollback in the SSL 2.0 server implementation, which is a bad
3373 idea. (CVE-2005-2969)
3375 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3376 for Information Security, National Institute of Advanced Industrial
3377 Science and Technology [AIST], Japan)]
3379 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3380 mainly for FIPS compliance and not fully integrated at this stage.
3383 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3384 the exponentiation using a fixed-length exponent. (Otherwise,
3385 the information leaked through timing could expose the secret key
3386 after many signatures; cf. Bleichenbacher's attack on DSA with
3390 *) Make a new fixed-window mod_exp implementation the default for
3391 RSA, DSA, and DH private-key operations so that the sequence of
3392 squares and multiplies and the memory access pattern are
3393 independent of the particular secret key. This will mitigate
3394 cache-timing and potential related attacks.
3396 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3397 and this is automatically used by BN_mod_exp_mont() if the new flag
3398 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3399 will use this BN flag for private exponents unless the flag
3400 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3401 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3403 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3405 *) Change the client implementation for SSLv23_method() and
3406 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3407 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3408 (Previously, the SSL 2.0 backwards compatible Client Hello
3409 message format would be used even with SSL_OP_NO_SSLv2.)
3412 *) Add support for smime-type MIME parameter in S/MIME messages which some
3416 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3417 a threadsafe manner. Modify rsa code to use new function and add calls
3418 to dsa and dh code (which had race conditions before).
3421 *) Include the fixed error library code in the C error file definitions
3422 instead of fixing them up at runtime. This keeps the error code
3423 structures constant.
3426 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3428 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3431 *) Fixes for newer kerberos headers. NB: the casts are needed because
3432 the 'length' field is signed on one version and unsigned on another
3433 with no (?) obvious way to tell the difference, without these VC++
3434 complains. Also the "definition" of FAR (blank) is no longer included
3435 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3436 some needed definitions.
3439 *) Undo Cygwin change.
3442 *) Added support for proxy certificates according to RFC 3820.
3443 Because they may be a security thread to unaware applications,
3444 they must be explicitely allowed in run-time. See
3445 docs/HOWTO/proxy_certificates.txt for further information.
3448 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3450 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3451 server and client random values. Previously
3452 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3453 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3455 This change has negligible security impact because:
3457 1. Server and client random values still have 24 bytes of pseudo random
3460 2. Server and client random values are sent in the clear in the initial
3463 3. The master secret is derived using the premaster secret (48 bytes in
3464 size for static RSA ciphersuites) as well as client server and random
3467 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3470 [Stephen Henson, reported by UK NISCC]
3472 *) Use Windows randomness collection on Cygwin.
3475 *) Fix hang in EGD/PRNGD query when communication socket is closed
3476 prematurely by EGD/PRNGD.
3477 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3479 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3482 *) Back-port of selected performance improvements from development
3483 branch, as well as improved support for PowerPC platforms.
3486 *) Add lots of checks for memory allocation failure, error codes to indicate
3487 failure and freeing up memory if a failure occurs.
3488 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3490 *) Add new -passin argument to dgst.
3493 *) Perform some character comparisons of different types in X509_NAME_cmp:
3494 this is needed for some certificates that reencode DNs into UTF8Strings
3495 (in violation of RFC3280) and can't or wont issue name rollover
3499 *) Make an explicit check during certificate validation to see that
3500 the CA setting in each certificate on the chain is correct. As a
3501 side effect always do the following basic checks on extensions,
3502 not just when there's an associated purpose to the check:
3504 - if there is an unhandled critical extension (unless the user
3505 has chosen to ignore this fault)
3506 - if the path length has been exceeded (if one is set at all)
3507 - that certain extensions fit the associated purpose (if one has
3511 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3513 *) Avoid a race condition when CRLs are checked in a multi threaded
3514 environment. This would happen due to the reordering of the revoked
3515 entries during signature checking and serial number lookup. Now the
3516 encoding is cached and the serial number sort performed under a lock.
3517 Add new STACK function sk_is_sorted().
3520 *) Add Delta CRL to the extension code.
3523 *) Various fixes to s3_pkt.c so alerts are sent properly.
3524 [David Holmes <d.holmes@f5.com>]
3526 *) Reduce the chances of duplicate issuer name and serial numbers (in
3527 violation of RFC3280) using the OpenSSL certificate creation utilities.
3528 This is done by creating a random 64 bit value for the initial serial
3529 number when a serial number file is created or when a self signed
3530 certificate is created using 'openssl req -x509'. The initial serial
3531 number file is created using 'openssl x509 -next_serial' in CA.pl
3532 rather than being initialized to 1.
3535 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3537 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3538 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3539 [Joe Orton, Steve Henson]
3541 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3543 [Joe Orton, Steve Henson]
3545 *) Make it possible to have multiple active certificates with the same
3546 subject in the CA index file. This is done only if the keyword
3547 'unique_subject' is set to 'no' in the main CA section (default
3548 if 'CA_default') of the configuration file. The value is saved
3549 with the database itself in a separate index attribute file,
3550 named like the index file with '.attr' appended to the name.
3553 *) X509 verify fixes. Disable broken certificate workarounds when
3554 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3555 keyUsage extension present. Don't accept CRLs with unhandled critical
3556 extensions: since verify currently doesn't process CRL extensions this
3557 rejects a CRL with *any* critical extensions. Add new verify error codes
3561 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3562 A clarification of RFC2560 will require the use of OCTET STRINGs and
3563 some implementations cannot handle the current raw format. Since OpenSSL
3564 copies and compares OCSP nonces as opaque blobs without any attempt at
3565 parsing them this should not create any compatibility issues.
3568 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3569 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3570 this HMAC (and other) operations are several times slower than OpenSSL
3574 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3575 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3577 *) Use the correct content when signing type "other".
3580 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3582 *) Fix various bugs revealed by running the NISCC test suite:
3584 Stop out of bounds reads in the ASN1 code when presented with
3585 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3587 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3589 If verify callback ignores invalid public key errors don't try to check
3590 certificate signature with the NULL public key.
3594 *) New -ignore_err option in ocsp application to stop the server
3595 exiting on the first error in a request.
3598 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3599 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3603 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3604 extra data after the compression methods not only for TLS 1.0
3605 but also for SSL 3.0 (as required by the specification).
3606 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3608 *) Change X509_certificate_type() to mark the key as exported/exportable
3609 when it's 512 *bits* long, not 512 bytes.
3612 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3613 blocks during encryption.
3616 *) Various fixes to base64 BIO and non blocking I/O. On write
3617 flushes were not handled properly if the BIO retried. On read
3618 data was not being buffered properly and had various logic bugs.
3619 This also affects blocking I/O when the data being decoded is a
3623 *) Various S/MIME bugfixes and compatibility changes:
3624 output correct application/pkcs7 MIME type if
3625 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3626 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3627 of files as .eml work). Correctly handle very long lines in MIME
3631 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3633 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3634 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3635 a protocol version number mismatch like a decryption error
3636 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3639 *) Turn on RSA blinding by default in the default implementation
3640 to avoid a timing attack. Applications that don't want it can call
3641 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3642 They would be ill-advised to do so in most cases.
3643 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3645 *) Change RSA blinding code so that it works when the PRNG is not
3646 seeded (in this case, the secret RSA exponent is abused as
3647 an unpredictable seed -- if it is not unpredictable, there
3648 is no point in blinding anyway). Make RSA blinding thread-safe
3649 by remembering the creator's thread ID in rsa->blinding and
3650 having all other threads use local one-time blinding factors
3651 (this requires more computation than sharing rsa->blinding, but
3652 avoids excessive locking; and if an RSA object is not shared
3653 between threads, blinding will still be very fast).
3656 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3657 ENGINE as defaults for all supported algorithms irrespective of
3658 the 'flags' parameter. 'flags' is now honoured, so applications
3659 should make sure they are passing it correctly.
3662 *) Target "mingw" now allows native Windows code to be generated in
3663 the Cygwin environment as well as with the MinGW compiler.
3666 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3668 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3669 via timing by performing a MAC computation even if incorrrect
3670 block cipher padding has been found. This is a countermeasure
3671 against active attacks where the attacker has to distinguish
3672 between bad padding and a MAC verification error. (CVE-2003-0078)
3674 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3675 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3676 Martin Vuagnoux (EPFL, Ilion)]
3678 *) Make the no-err option work as intended. The intention with no-err
3679 is not to have the whole error stack handling routines removed from
3680 libcrypto, it's only intended to remove all the function name and
3681 reason texts, thereby removing some of the footprint that may not
3682 be interesting if those errors aren't displayed anyway.
3684 NOTE: it's still possible for any application or module to have it's
3685 own set of error texts inserted. The routines are there, just not
3686 used by default when no-err is given.
3689 *) Add support for FreeBSD on IA64.
3690 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3692 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3693 Kerberos function mit_des_cbc_cksum(). Before this change,
3694 the value returned by DES_cbc_cksum() was like the one from
3695 mit_des_cbc_cksum(), except the bytes were swapped.
3696 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3698 *) Allow an application to disable the automatic SSL chain building.
3699 Before this a rather primitive chain build was always performed in
3700 ssl3_output_cert_chain(): an application had no way to send the
3701 correct chain if the automatic operation produced an incorrect result.
3703 Now the chain builder is disabled if either:
3705 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3707 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3709 The reasoning behind this is that an application would not want the
3710 auto chain building to take place if extra chain certificates are
3711 present and it might also want a means of sending no additional
3712 certificates (for example the chain has two certificates and the
3716 *) Add the possibility to build without the ENGINE framework.
3717 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3719 *) Under Win32 gmtime() can return NULL: check return value in
3720 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3723 *) DSA routines: under certain error conditions uninitialized BN objects
3724 could be freed. Solution: make sure initialization is performed early
3725 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3726 Nils Larsch <nla@trustcenter.de> via PR#459)
3729 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3730 checked on reconnect on the client side, therefore session resumption
3731 could still fail with a "ssl session id is different" error. This
3732 behaviour is masked when SSL_OP_ALL is used due to
3733 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3734 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3735 followup to PR #377.
3738 *) IA-32 assembler support enhancements: unified ELF targets, support
3739 for SCO/Caldera platforms, fix for Cygwin shared build.
3742 *) Add support for FreeBSD on sparc64. As a consequence, support for
3743 FreeBSD on non-x86 processors is separate from x86 processors on
3744 the config script, much like the NetBSD support.
3745 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3747 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3749 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3752 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3753 code (06) was taken as the first octet of the session ID and the last
3754 octet was ignored consequently. As a result SSLv2 client side session
3755 caching could not have worked due to the session ID mismatch between
3757 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3761 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3762 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3766 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3767 seems that in spite of existing for more than a year, many application
3768 author have done nothing to provide the necessary callbacks, which
3769 means that this particular engine will not work properly anywhere.
3770 This is a very unfortunate situation which forces us, in the name
3771 of usability, to give the hw_ncipher.c a static lock, which is part
3773 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3774 appear in 0.9.8 or later. We EXPECT application authors to have
3775 dealt properly with this when 0.9.8 is released (unless we actually
3776 make such changes in the libcrypto locking code that changes will
3777 have to be made anyway).
3780 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3781 octets have been read, EOF or an error occurs. Without this change
3782 some truncated ASN1 structures will not produce an error.
3785 *) Disable Heimdal support, since it hasn't been fully implemented.
3786 Still give the possibility to force the use of Heimdal, but with
3787 warnings and a request that patches get sent to openssl-dev.
3790 *) Add the VC-CE target, introduce the WINCE sysname, and add
3791 INSTALL.WCE and appropriate conditionals to make it build.
3792 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3794 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3795 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3796 edit numbers of the version.
3797 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3799 *) Introduce safe string copy and catenation functions
3800 (BUF_strlcpy() and BUF_strlcat()).
3801 [Ben Laurie (CHATS) and Richard Levitte]
3803 *) Avoid using fixed-size buffers for one-line DNs.
3804 [Ben Laurie (CHATS)]
3806 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3807 resizing buffers containing secrets, and use where appropriate.
3808 [Ben Laurie (CHATS)]
3810 *) Avoid using fixed size buffers for configuration file location.
3811 [Ben Laurie (CHATS)]
3813 *) Avoid filename truncation for various CA files.
3814 [Ben Laurie (CHATS)]
3816 *) Use sizeof in preference to magic numbers.
3817 [Ben Laurie (CHATS)]
3819 *) Avoid filename truncation in cert requests.
3820 [Ben Laurie (CHATS)]
3822 *) Add assertions to check for (supposedly impossible) buffer
3824 [Ben Laurie (CHATS)]
3826 *) Don't cache truncated DNS entries in the local cache (this could
3827 potentially lead to a spoofing attack).
3828 [Ben Laurie (CHATS)]
3830 *) Fix various buffers to be large enough for hex/decimal
3831 representations in a platform independent manner.
3832 [Ben Laurie (CHATS)]
3834 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3835 resizing buffers containing secrets, and use where appropriate.
3836 [Ben Laurie (CHATS)]
3838 *) Add BIO_indent() to avoid much slightly worrying code to do
3840 [Ben Laurie (CHATS)]
3842 *) Convert sprintf()/BIO_puts() to BIO_printf().
3843 [Ben Laurie (CHATS)]
3845 *) buffer_gets() could terminate with the buffer only half
3847 [Ben Laurie (CHATS)]
3849 *) Add assertions to prevent user-supplied crypto functions from
3850 overflowing internal buffers by having large block sizes, etc.
3851 [Ben Laurie (CHATS)]
3853 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3855 [Ben Laurie (CHATS)]
3857 *) Eliminate unused copy of key in RC4.
3858 [Ben Laurie (CHATS)]
3860 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3861 [Ben Laurie (CHATS)]
3863 *) Fix off-by-one error in EGD path.
3864 [Ben Laurie (CHATS)]
3866 *) If RANDFILE path is too long, ignore instead of truncating.
3867 [Ben Laurie (CHATS)]
3869 *) Eliminate unused and incorrectly sized X.509 structure
3871 [Ben Laurie (CHATS)]
3873 *) Eliminate unused and dangerous function knumber().
3874 [Ben Laurie (CHATS)]
3876 *) Eliminate unused and dangerous structure, KSSL_ERR.
3877 [Ben Laurie (CHATS)]
3879 *) Protect against overlong session ID context length in an encoded
3880 session object. Since these are local, this does not appear to be
3882 [Ben Laurie (CHATS)]
3884 *) Change from security patch (see 0.9.6e below) that did not affect
3885 the 0.9.6 release series:
3887 Remote buffer overflow in SSL3 protocol - an attacker could
3888 supply an oversized master key in Kerberos-enabled versions.
3890 [Ben Laurie (CHATS)]
3892 *) Change the SSL kerb5 codes to match RFC 2712.
3895 *) Make -nameopt work fully for req and add -reqopt switch.
3896 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3898 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3899 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3901 *) Make sure tests can be performed even if the corresponding algorithms
3902 have been removed entirely. This was also the last step to make
3903 OpenSSL compilable with DJGPP under all reasonable conditions.
3904 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3906 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3907 to allow version independent disabling of normally unselected ciphers,
3908 which may be activated as a side-effect of selecting a single cipher.
3910 (E.g., cipher list string "RSA" enables ciphersuites that are left
3911 out of "ALL" because they do not provide symmetric encryption.
3912 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3913 [Lutz Jaenicke, Bodo Moeller]
3915 *) Add appropriate support for separate platform-dependent build
3916 directories. The recommended way to make a platform-dependent
3917 build directory is the following (tested on Linux), maybe with
3920 # Place yourself outside of the OpenSSL source tree. In
3921 # this example, the environment variable OPENSSL_SOURCE
3922 # is assumed to contain the absolute OpenSSL source directory.
3923 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3924 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3925 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3926 mkdir -p `dirname $F`
3927 ln -s $OPENSSL_SOURCE/$F $F
3930 To be absolutely sure not to disturb the source tree, a "make clean"
3931 is a good thing. If it isn't successfull, don't worry about it,
3932 it probably means the source directory is very clean.
3935 *) Make sure any ENGINE control commands make local copies of string
3936 pointers passed to them whenever necessary. Otherwise it is possible
3937 the caller may have overwritten (or deallocated) the original string
3938 data when a later ENGINE operation tries to use the stored values.
3939 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3941 *) Improve diagnostics in file reading and command-line digests.
3942 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3944 *) Add AES modes CFB and OFB to the object database. Correct an
3945 error in AES-CFB decryption.
3948 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3949 allows existing EVP_CIPHER_CTX structures to be reused after
3950 calling EVP_*Final(). This behaviour is used by encryption
3951 BIOs and some applications. This has the side effect that
3952 applications must explicitly clean up cipher contexts with
3953 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3956 *) Check the values of dna and dnb in bn_mul_recursive before calling
3957 bn_mul_comba (a non zero value means the a or b arrays do not contain
3958 n2 elements) and fallback to bn_mul_normal if either is not zero.
3961 *) Fix escaping of non-ASCII characters when using the -subj option
3962 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3965 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3966 form for "surname", serialNumber has no short form.
3967 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3968 therefore remove "mail" short name for "internet 7".
3969 The OID for unique identifiers in X509 certificates is
3970 x500UniqueIdentifier, not uniqueIdentifier.
3971 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3974 *) Add an "init" command to the ENGINE config module and auto initialize
3975 ENGINEs. Without any "init" command the ENGINE will be initialized
3976 after all ctrl commands have been executed on it. If init=1 the
3977 ENGINE is initailized at that point (ctrls before that point are run
3978 on the uninitialized ENGINE and after on the initialized one). If
3979 init=0 then the ENGINE will not be iniatialized at all.
3982 *) Fix the 'app_verify_callback' interface so that the user-defined
3983 argument is actually passed to the callback: In the
3984 SSL_CTX_set_cert_verify_callback() prototype, the callback
3985 declaration has been changed from
3988 int (*cb)(X509_STORE_CTX *,void *);
3989 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3990 i=s->ctx->app_verify_callback(&ctx)
3991 has been changed into
3992 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3994 To update applications using SSL_CTX_set_cert_verify_callback(),
3995 a dummy argument can be added to their callback functions.
3996 [D. K. Smetters <smetters@parc.xerox.com>]
3998 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3999 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4001 *) Add and OPENSSL_LOAD_CONF define which will cause
4002 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4003 This allows older applications to transparently support certain
4004 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4005 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4006 load the config file and OPENSSL_add_all_algorithms_conf() which will
4007 always load it have also been added.
4010 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4011 Adjust NIDs and EVP layer.
4012 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4014 *) Config modules support in openssl utility.
4016 Most commands now load modules from the config file,
4017 though in a few (such as version) this isn't done
4018 because it couldn't be used for anything.
4020 In the case of ca and req the config file used is
4021 the same as the utility itself: that is the -config
4022 command line option can be used to specify an
4026 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4027 use "openssl_conf" if filename is NULL use default openssl config file.
4030 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4031 config section name. Add a new flag to tolerate a missing config file
4032 and move code to CONF_modules_load_file().
4035 *) Support for crypto accelerator cards from Accelerated Encryption
4036 Processing, www.aep.ie. (Use engine 'aep')
4037 The support was copied from 0.9.6c [engine] and adapted/corrected
4038 to work with the new engine framework.
4039 [AEP Inc. and Richard Levitte]
4041 *) Support for SureWare crypto accelerator cards from Baltimore
4042 Technologies. (Use engine 'sureware')
4043 The support was copied from 0.9.6c [engine] and adapted
4044 to work with the new engine framework.
4047 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4048 make the newer ENGINE framework commands for the CHIL engine work.
4049 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4051 *) Make it possible to produce shared libraries on ReliantUNIX.
4052 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4054 *) Add the configuration target debug-linux-ppro.
4055 Make 'openssl rsa' use the general key loading routines
4056 implemented in apps.c, and make those routines able to
4057 handle the key format FORMAT_NETSCAPE and the variant
4059 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4061 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4062 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4064 *) Add -keyform to rsautl, and document -engine.
4065 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4067 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4068 BIO_R_NO_SUCH_FILE error code rather than the generic
4069 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4072 *) Add new functions
4074 ERR_peek_last_error_line
4075 ERR_peek_last_error_line_data.
4076 These are similar to
4079 ERR_peek_error_line_data,
4080 but report on the latest error recorded rather than the first one
4081 still in the error queue.
4082 [Ben Laurie, Bodo Moeller]
4084 *) default_algorithms option in ENGINE config module. This allows things
4086 default_algorithms = ALL
4087 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4090 *) Prelminary ENGINE config module.
4093 *) New experimental application configuration code.
4096 *) Change the AES code to follow the same name structure as all other
4097 symmetric ciphers, and behave the same way. Move everything to
4098 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4099 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4101 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4102 [Ben Laurie and Theo de Raadt]
4104 *) Add option to output public keys in req command.
4105 [Massimiliano Pala madwolf@openca.org]
4107 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4108 (up to about 10% better than before for P-192 and P-224).
4111 *) New functions/macros
4113 SSL_CTX_set_msg_callback(ctx, cb)
4114 SSL_CTX_set_msg_callback_arg(ctx, arg)
4115 SSL_set_msg_callback(ssl, cb)
4116 SSL_set_msg_callback_arg(ssl, arg)
4118 to request calling a callback function
4120 void cb(int write_p, int version, int content_type,
4121 const void *buf, size_t len, SSL *ssl, void *arg)
4123 whenever a protocol message has been completely received
4124 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4125 protocol version according to which the SSL library interprets
4126 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4127 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4128 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4129 specification (change_cipher_spec(20), alert(21), handshake(22)).
4130 'buf' and 'len' point to the actual message, 'ssl' to the
4131 SSL object, and 'arg' is the application-defined value set by
4132 SSL[_CTX]_set_msg_callback_arg().
4134 'openssl s_client' and 'openssl s_server' have new '-msg' options
4135 to enable a callback that displays all protocol messages.
4138 *) Change the shared library support so shared libraries are built as
4139 soon as the corresponding static library is finished, and thereby get
4140 openssl and the test programs linked against the shared library.
4141 This still only happens when the keyword "shard" has been given to
4142 the configuration scripts.
4144 NOTE: shared library support is still an experimental thing, and
4145 backward binary compatibility is still not guaranteed.
4146 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4148 *) Add support for Subject Information Access extension.
4149 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4151 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4152 additional bytes when new memory had to be allocated, not just
4153 when reusing an existing buffer.
4156 *) New command line and configuration option 'utf8' for the req command.
4157 This allows field values to be specified as UTF8 strings.
4160 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4161 runs for the former and machine-readable output for the latter.
4164 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4165 of the e-mail address in the DN (i.e., it will go into a certificate
4166 extension only). The new configuration file option 'email_in_dn = no'
4167 has the same effect.
4168 [Massimiliano Pala madwolf@openca.org]
4170 *) Change all functions with names starting with des_ to be starting
4171 with DES_ instead. Add wrappers that are compatible with libdes,
4172 but are named _ossl_old_des_*. Finally, add macros that map the
4173 des_* symbols to the corresponding _ossl_old_des_* if libdes
4174 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4175 desired, the des_* symbols will be mapped to DES_*, with one
4178 Since we provide two compatibility mappings, the user needs to
4179 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4180 compatibility is desired. The default (i.e., when that macro
4181 isn't defined) is OpenSSL 0.9.6c compatibility.
4183 There are also macros that enable and disable the support of old
4184 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4185 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4186 are defined, the default will apply: to support the old des routines.
4188 In either case, one must include openssl/des.h to get the correct
4189 definitions. Do not try to just include openssl/des_old.h, that
4192 NOTE: This is a major break of an old API into a new one. Software
4193 authors are encouraged to switch to the DES_ style functions. Some
4194 time in the future, des_old.h and the libdes compatibility functions
4195 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4196 default), and then completely removed.
4199 *) Test for certificates which contain unsupported critical extensions.
4200 If such a certificate is found during a verify operation it is
4201 rejected by default: this behaviour can be overridden by either
4202 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4203 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4204 X509_supported_extension() has also been added which returns 1 if a
4205 particular extension is supported.
4208 *) Modify the behaviour of EVP cipher functions in similar way to digests
4209 to retain compatibility with existing code.
4212 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4213 compatibility with existing code. In particular the 'ctx' parameter does
4214 not have to be to be initialized before the call to EVP_DigestInit() and
4215 it is tidied up after a call to EVP_DigestFinal(). New function
4216 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4217 EVP_MD_CTX_copy() changed to not require the destination to be
4218 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4219 requires the destination to be valid.
4221 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4222 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4225 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4226 so that complete 'Handshake' protocol structures are kept in memory
4227 instead of overwriting 'msg_type' and 'length' with 'body' data.
4230 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4231 [Massimo Santin via Richard Levitte]
4233 *) Major restructuring to the underlying ENGINE code. This includes
4234 reduction of linker bloat, separation of pure "ENGINE" manipulation
4235 (initialisation, etc) from functionality dealing with implementations
4236 of specific crypto iterfaces. This change also introduces integrated
4237 support for symmetric ciphers and digest implementations - so ENGINEs
4238 can now accelerate these by providing EVP_CIPHER and EVP_MD
4239 implementations of their own. This is detailed in crypto/engine/README
4240 as it couldn't be adequately described here. However, there are a few
4241 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4242 were changed in the original introduction of ENGINE code have now
4243 reverted back - the hooking from this code to ENGINE is now a good
4244 deal more passive and at run-time, operations deal directly with
4245 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4246 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4247 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4248 they were not being used by the framework as there is no concept of a
4249 BIGNUM_METHOD and they could not be generalised to the new
4250 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4251 ENGINE_cpy() has been removed as it cannot be consistently defined in
4255 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4258 *) Change mkdef.pl to sort symbols that get the same entry number,
4259 and make sure the automatically generated functions ERR_load_*
4260 become part of libeay.num as well.
4263 *) New function SSL_renegotiate_pending(). This returns true once
4264 renegotiation has been requested (either SSL_renegotiate() call
4265 or HelloRequest/ClientHello receveived from the peer) and becomes
4266 false once a handshake has been completed.
4267 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4268 sends a HelloRequest, but does not ensure that a handshake takes
4269 place. SSL_renegotiate_pending() is useful for checking if the
4270 client has followed the request.)
4273 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4274 By default, clients may request session resumption even during
4275 renegotiation (if session ID contexts permit); with this option,
4276 session resumption is possible only in the first handshake.
4278 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4279 more bits available for options that should not be part of
4280 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4283 *) Add some demos for certificate and certificate request creation.
4286 *) Make maximum certificate chain size accepted from the peer application
4287 settable (SSL*_get/set_max_cert_list()), as proposed by
4288 "Douglas E. Engert" <deengert@anl.gov>.
4291 *) Add support for shared libraries for Unixware-7
4292 (Boyd Lynn Gerber <gerberb@zenez.com>).
4295 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4296 be done prior to destruction. Use this to unload error strings from
4297 ENGINEs that load their own error strings. NB: This adds two new API
4298 functions to "get" and "set" this destroy handler in an ENGINE.
4301 *) Alter all existing ENGINE implementations (except "openssl" and
4302 "openbsd") to dynamically instantiate their own error strings. This
4303 makes them more flexible to be built both as statically-linked ENGINEs
4304 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4305 Also, add stub code to each that makes building them as self-contained
4306 shared-libraries easier (see README.ENGINE).
4309 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4310 implementations into applications that are completely implemented in
4311 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4312 commands that can be used to configure what shared-library to load and
4313 to control aspects of the way it is handled. Also, made an update to
4314 the README.ENGINE file that brings its information up-to-date and
4315 provides some information and instructions on the "dynamic" ENGINE
4316 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4319 *) Make it possible to unload ranges of ERR strings with a new
4320 "ERR_unload_strings" function.
4323 *) Add a copy() function to EVP_MD.
4326 *) Make EVP_MD routines take a context pointer instead of just the
4327 md_data void pointer.
4330 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4331 that the digest can only process a single chunk of data
4332 (typically because it is provided by a piece of
4333 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4334 is only going to provide a single chunk of data, and hence the
4335 framework needn't accumulate the data for oneshot drivers.
4338 *) As with "ERR", make it possible to replace the underlying "ex_data"
4339 functions. This change also alters the storage and management of global
4340 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4341 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4342 index counters. The API functions that use this state have been changed
4343 to take a "class_index" rather than pointers to the class's local STACK
4344 and counter, and there is now an API function to dynamically create new
4345 classes. This centralisation allows us to (a) plug a lot of the
4346 thread-safety problems that existed, and (b) makes it possible to clean
4347 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4348 such data would previously have always leaked in application code and
4349 workarounds were in place to make the memory debugging turn a blind eye
4350 to it. Application code that doesn't use this new function will still
4351 leak as before, but their memory debugging output will announce it now
4352 rather than letting it slide.
4354 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4355 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4356 has a return value to indicate success or failure.
4359 *) Make it possible to replace the underlying "ERR" functions such that the
4360 global state (2 LHASH tables and 2 locks) is only used by the "default"
4361 implementation. This change also adds two functions to "get" and "set"
4362 the implementation prior to it being automatically set the first time
4363 any other ERR function takes place. Ie. an application can call "get",
4364 pass the return value to a module it has just loaded, and that module
4365 can call its own "set" function using that value. This means the
4366 module's "ERR" operations will use (and modify) the error state in the
4367 application and not in its own statically linked copy of OpenSSL code.
4370 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4371 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4372 the operation, and provides a more encapsulated way for external code
4373 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4374 to use these functions rather than manually incrementing the counts.
4376 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4379 *) Add EVP test program.
4382 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4385 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4386 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4387 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4388 These allow a CRL to be built without having to access X509_CRL fields
4389 directly. Modify 'ca' application to use new functions.
4392 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4393 bug workarounds. Rollback attack detection is a security feature.
4394 The problem will only arise on OpenSSL servers when TLSv1 is not
4395 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4396 Software authors not wanting to support TLSv1 will have special reasons
4397 for their choice and can explicitly enable this option.
4398 [Bodo Moeller, Lutz Jaenicke]
4400 *) Rationalise EVP so it can be extended: don't include a union of
4401 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4402 (similar to those existing for EVP_CIPHER_CTX).
4407 EVP_MD_CTX_init(&md); /* new function call */
4408 EVP_DigestInit(&md, EVP_sha1());
4409 EVP_DigestUpdate(&md, in, len);
4410 EVP_DigestFinal(&md, out, NULL);
4411 EVP_MD_CTX_cleanup(&md); /* new function call */
4415 *) Make DES key schedule conform to the usual scheme, as well as
4416 correcting its structure. This means that calls to DES functions
4417 now have to pass a pointer to a des_key_schedule instead of a
4418 plain des_key_schedule (which was actually always a pointer
4421 des_key_schedule ks;
4423 des_set_key_checked(..., &ks);
4424 des_ncbc_encrypt(..., &ks, ...);
4426 (Note that a later change renames 'des_...' into 'DES_...'.)
4429 *) Initial reduction of linker bloat: the use of some functions, such as
4430 PEM causes large amounts of unused functions to be linked in due to
4431 poor organisation. For example pem_all.c contains every PEM function
4432 which has a knock on effect of linking in large amounts of (unused)
4433 ASN1 code. Grouping together similar functions and splitting unrelated
4434 functions prevents this.
4437 *) Cleanup of EVP macros.
4440 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4441 correct _ecb suffix.
4444 *) Add initial OCSP responder support to ocsp application. The
4445 revocation information is handled using the text based index
4446 use by the ca application. The responder can either handle
4447 requests generated internally, supplied in files (for example
4448 via a CGI script) or using an internal minimal server.
4451 *) Add configuration choices to get zlib compression for TLS.
4454 *) Changes to Kerberos SSL for RFC 2712 compliance:
4455 1. Implemented real KerberosWrapper, instead of just using
4456 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4457 2. Implemented optional authenticator field of KerberosWrapper.
4459 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4460 and authenticator structs; see crypto/krb5/.
4462 Generalized Kerberos calls to support multiple Kerberos libraries.
4463 [Vern Staats <staatsvr@asc.hpc.mil>,
4464 Jeffrey Altman <jaltman@columbia.edu>
4465 via Richard Levitte]
4467 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4468 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4469 values for each of the key sizes rather than having just
4470 parameters (and 'speed' generating keys each time).
4473 *) Speed up EVP routines.
4476 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4477 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4478 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4479 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4481 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4482 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4483 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4486 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4488 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4491 *) Added the OS2-EMX target.
4492 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4494 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4495 to support NCONF routines in extension code. New function CONF_set_nconf()
4496 to allow functions which take an NCONF to also handle the old LHASH
4497 structure: this means that the old CONF compatible routines can be
4498 retained (in particular wrt extensions) without having to duplicate the
4499 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4502 *) Enhance the general user interface with mechanisms for inner control
4503 and with possibilities to have yes/no kind of prompts.
4506 *) Change all calls to low level digest routines in the library and
4507 applications to use EVP. Add missing calls to HMAC_cleanup() and
4508 don't assume HMAC_CTX can be copied using memcpy().
4509 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4511 *) Add the possibility to control engines through control names but with
4512 arbitrary arguments instead of just a string.
4513 Change the key loaders to take a UI_METHOD instead of a callback
4514 function pointer. NOTE: this breaks binary compatibility with earlier
4515 versions of OpenSSL [engine].
4516 Adapt the nCipher code for these new conditions and add a card insertion
4520 *) Enhance the general user interface with mechanisms to better support
4521 dialog box interfaces, application-defined prompts, the possibility
4522 to use defaults (for example default passwords from somewhere else)
4523 and interrupts/cancellations.
4526 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4527 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4530 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4531 tidy up some unnecessarily weird code in 'sk_new()').
4532 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4534 *) Change the key loading routines for ENGINEs to use the same kind
4535 callback (pem_password_cb) as all other routines that need this
4539 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4540 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4541 than this minimum value is recommended.
4544 *) New random seeder for OpenVMS, using the system process statistics
4545 that are easily reachable.
4548 *) Windows apparently can't transparently handle global
4549 variables defined in DLLs. Initialisations such as:
4551 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4553 wont compile. This is used by the any applications that need to
4554 declare their own ASN1 modules. This was fixed by adding the option
4555 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4556 needed for static libraries under Win32.
4559 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4560 setting of purpose and trust fields. New X509_STORE trust and
4561 purpose functions and tidy up setting in other SSL functions.
4564 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4565 structure. These are inherited by X509_STORE_CTX when it is
4566 initialised. This allows various defaults to be set in the
4567 X509_STORE structure (such as flags for CRL checking and custom
4568 purpose or trust settings) for functions which only use X509_STORE_CTX
4569 internally such as S/MIME.
4571 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4572 trust settings if they are not set in X509_STORE. This allows X509_STORE
4573 purposes and trust (in S/MIME for example) to override any set by default.
4575 Add command line options for CRL checking to smime, s_client and s_server
4579 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4580 are set then the CRL is looked up in the X509_STORE structure and
4581 its validity and signature checked, then if the certificate is found
4582 in the CRL the verify fails with a revoked error.
4584 Various new CRL related callbacks added to X509_STORE_CTX structure.
4586 Command line options added to 'verify' application to support this.
4588 This needs some additional work, such as being able to handle multiple
4589 CRLs with different times, extension based lookup (rather than just
4590 by subject name) and ultimately more complete V2 CRL extension
4594 *) Add a general user interface API (crypto/ui/). This is designed
4595 to replace things like des_read_password and friends (backward
4596 compatibility functions using this new API are provided).
4597 The purpose is to remove prompting functions from the DES code
4598 section as well as provide for prompting through dialog boxes in
4599 a window system and the like.
4602 *) Add "ex_data" support to ENGINE so implementations can add state at a
4603 per-structure level rather than having to store it globally.
4606 *) Make it possible for ENGINE structures to be copied when retrieved by
4607 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4608 This causes the "original" ENGINE structure to act like a template,
4609 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4610 operational state can be localised to each ENGINE structure, despite the
4611 fact they all share the same "methods". New ENGINE structures returned in
4612 this case have no functional references and the return value is the single
4613 structural reference. This matches the single structural reference returned
4614 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4618 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4619 needs to match any other type at all we need to manually clear the
4623 *) Changes to the "openssl engine" utility to include;
4624 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4625 about an ENGINE's available control commands.
4626 - executing control commands from command line arguments using the
4627 '-pre' and '-post' switches. '-post' is only used if '-t' is
4628 specified and the ENGINE is successfully initialised. The syntax for
4629 the individual commands are colon-separated, for example;
4630 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4633 *) New dynamic control command support for ENGINEs. ENGINEs can now
4634 declare their own commands (numbers), names (strings), descriptions,
4635 and input types for run-time discovery by calling applications. A
4636 subset of these commands are implicitly classed as "executable"
4637 depending on their input type, and only these can be invoked through
4638 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4639 can be based on user input, config files, etc). The distinction is
4640 that "executable" commands cannot return anything other than a boolean
4641 result and can only support numeric or string input, whereas some
4642 discoverable commands may only be for direct use through
4643 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4644 pointers, or other custom uses. The "executable" commands are to
4645 support parameterisations of ENGINE behaviour that can be
4646 unambiguously defined by ENGINEs and used consistently across any
4647 OpenSSL-based application. Commands have been added to all the
4648 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4649 control over shared-library paths without source code alterations.
4652 *) Changed all ENGINE implementations to dynamically allocate their
4653 ENGINEs rather than declaring them statically. Apart from this being
4654 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4655 this also allows the implementations to compile without using the
4656 internal engine_int.h header.
4659 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4660 'const' value. Any code that should be able to modify a RAND_METHOD
4661 should already have non-const pointers to it (ie. they should only
4662 modify their own ones).
4665 *) Made a variety of little tweaks to the ENGINE code.
4666 - "atalla" and "ubsec" string definitions were moved from header files
4667 to C code. "nuron" string definitions were placed in variables
4668 rather than hard-coded - allowing parameterisation of these values
4669 later on via ctrl() commands.
4670 - Removed unused "#if 0"'d code.
4671 - Fixed engine list iteration code so it uses ENGINE_free() to release
4672 structural references.
4673 - Constified the RAND_METHOD element of ENGINE structures.
4674 - Constified various get/set functions as appropriate and added
4675 missing functions (including a catch-all ENGINE_cpy that duplicates
4676 all ENGINE values onto a new ENGINE except reference counts/state).
4677 - Removed NULL parameter checks in get/set functions. Setting a method
4678 or function to NULL is a way of cancelling out a previously set
4679 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4680 and doesn't justify the extra error symbols and code.
4681 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4682 flags from engine_int.h to engine.h.
4683 - Changed prototypes for ENGINE handler functions (init(), finish(),
4684 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4687 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4688 to the algorithm using long division. The binary algorithm can be
4689 used only if the modulus is odd. On 32-bit systems, it is faster
4690 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4691 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4692 up to 450 bits. In 64-bit environments, the binary algorithm
4693 appears to be advantageous for much longer moduli; here we use it
4694 for moduli up to 2048 bits.
4697 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4698 could not support the combine flag in choice fields.
4701 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4702 extensions from a certificate request to the certificate.
4705 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4706 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4707 file: this allows the display of the certificate about to be
4708 signed to be customised, to allow certain fields to be included
4709 or excluded and extension details. The old system didn't display
4710 multicharacter strings properly, omitted fields not in the policy
4711 and couldn't display additional details such as extensions.
4714 *) Function EC_POINTs_mul for multiple scalar multiplication
4715 of an arbitrary number of elliptic curve points
4716 \sum scalars[i]*points[i],
4717 optionally including the generator defined for the EC_GROUP:
4718 scalar*generator + \sum scalars[i]*points[i].
4720 EC_POINT_mul is a simple wrapper function for the typical case
4721 that the point list has just one item (besides the optional
4725 *) First EC_METHODs for curves over GF(p):
4727 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4728 operations and provides various method functions that can also
4729 operate with faster implementations of modular arithmetic.
4731 EC_GFp_mont_method() reuses most functions that are part of
4732 EC_GFp_simple_method, but uses Montgomery arithmetic.
4734 [Bodo Moeller; point addition and point doubling
4735 implementation directly derived from source code provided by
4736 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4738 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4739 crypto/ec/ec_lib.c):
4741 Curves are EC_GROUP objects (with an optional group generator)
4742 based on EC_METHODs that are built into the library.
4744 Points are EC_POINT objects based on EC_GROUP objects.
4746 Most of the framework would be able to handle curves over arbitrary
4747 finite fields, but as there are no obvious types for fields other
4748 than GF(p), some functions are limited to that for now.
4751 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4752 that the file contains a complete HTTP response.
4755 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4756 change the def and num file printf format specifier from "%-40sXXX"
4757 to "%-39s XXX". The latter will always guarantee a space after the
4758 field while the former will cause them to run together if the field
4759 is 40 of more characters long.
4762 *) Constify the cipher and digest 'method' functions and structures
4763 and modify related functions to take constant EVP_MD and EVP_CIPHER
4767 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4768 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4771 *) Modify EVP_Digest*() routines so they now return values. Although the
4772 internal software routines can never fail additional hardware versions
4776 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4778 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4779 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4782 ERR_R_NESTED_ASN1_ERROR
4784 ERR_R_MISSING_ASN1_EOS
4785 were 4 .. 9, conflicting with
4786 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4788 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4789 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4791 Add new error code 'ERR_R_INTERNAL_ERROR'.
4794 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4798 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4799 sets the subject name for a new request or supersedes the
4800 subject name in a given request. Formats that can be parsed are
4801 'CN=Some Name, OU=myOU, C=IT'
4803 'CN=Some Name/OU=myOU/C=IT'.
4805 Add options '-batch' and '-verbose' to 'openssl req'.
4806 [Massimiliano Pala <madwolf@hackmasters.net>]
4808 *) Introduce the possibility to access global variables through
4809 functions on platform were that's the best way to handle exporting
4810 global variables in shared libraries. To enable this functionality,
4811 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4812 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4813 is normally done by Configure or something similar).
4815 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4816 in the source file (foo.c) like this:
4818 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4819 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4821 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4822 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4824 OPENSSL_DECLARE_GLOBAL(int,foo);
4825 #define foo OPENSSL_GLOBAL_REF(foo)
4826 OPENSSL_DECLARE_GLOBAL(double,bar);
4827 #define bar OPENSSL_GLOBAL_REF(bar)
4829 The #defines are very important, and therefore so is including the
4830 header file everywhere where the defined globals are used.
4832 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4833 of ASN.1 items, but that structure is a bit different.
4835 The largest change is in util/mkdef.pl which has been enhanced with
4836 better and easier to understand logic to choose which symbols should
4837 go into the Windows .def files as well as a number of fixes and code
4838 cleanup (among others, algorithm keywords are now sorted
4839 lexicographically to avoid constant rewrites).
4842 *) In BN_div() keep a copy of the sign of 'num' before writing the
4843 result to 'rm' because if rm==num the value will be overwritten
4844 and produce the wrong result if 'num' is negative: this caused
4845 problems with BN_mod() and BN_nnmod().
4848 *) Function OCSP_request_verify(). This checks the signature on an
4849 OCSP request and verifies the signer certificate. The signer
4850 certificate is just checked for a generic purpose and OCSP request
4854 *) Add OCSP_check_validity() function to check the validity of OCSP
4855 responses. OCSP responses are prepared in real time and may only
4856 be a few seconds old. Simply checking that the current time lies
4857 between thisUpdate and nextUpdate max reject otherwise valid responses
4858 caused by either OCSP responder or client clock inaccuracy. Instead
4859 we allow thisUpdate and nextUpdate to fall within a certain period of
4860 the current time. The age of the response can also optionally be
4861 checked. Two new options -validity_period and -status_age added to
4865 *) If signature or public key algorithm is unrecognized print out its
4866 OID rather that just UNKNOWN.
4869 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4870 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4871 ID to be generated from the issuer certificate alone which can then be
4872 passed to OCSP_id_issuer_cmp().
4875 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4876 ASN1 modules to export functions returning ASN1_ITEM pointers
4877 instead of the ASN1_ITEM structures themselves. This adds several
4878 new macros which allow the underlying ASN1 function/structure to
4879 be accessed transparently. As a result code should not use ASN1_ITEM
4880 references directly (such as &X509_it) but instead use the relevant
4881 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4882 use of the new ASN1 code on platforms where exporting structures
4883 is problematical (for example in shared libraries) but exporting
4884 functions returning pointers to structures is not.
4887 *) Add support for overriding the generation of SSL/TLS session IDs.
4888 These callbacks can be registered either in an SSL_CTX or per SSL.
4889 The purpose of this is to allow applications to control, if they wish,
4890 the arbitrary values chosen for use as session IDs, particularly as it
4891 can be useful for session caching in multiple-server environments. A
4892 command-line switch for testing this (and any client code that wishes
4893 to use such a feature) has been added to "s_server".
4894 [Geoff Thorpe, Lutz Jaenicke]
4896 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4897 of the form '#if defined(...) || defined(...) || ...' and
4898 '#if !defined(...) && !defined(...) && ...'. This also avoids
4899 the growing number of special cases it was previously handling.
4902 *) Make all configuration macros available for application by making
4903 sure they are available in opensslconf.h, by giving them names starting
4904 with "OPENSSL_" to avoid conflicts with other packages and by making
4905 sure e_os2.h will cover all platform-specific cases together with
4907 Additionally, it is now possible to define configuration/platform-
4908 specific names (called "system identities"). In the C code, these
4909 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4910 macro with the name beginning with "OPENSSL_SYS_", which is determined
4911 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4915 *) New option -set_serial to 'req' and 'x509' this allows the serial
4916 number to use to be specified on the command line. Previously self
4917 signed certificates were hard coded with serial number 0 and the
4918 CA options of 'x509' had to use a serial number in a file which was
4922 *) New options to 'ca' utility to support V2 CRL entry extensions.
4923 Currently CRL reason, invalidity date and hold instruction are
4924 supported. Add new CRL extensions to V3 code and some new objects.
4927 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4928 disable standard block padding (aka PKCS#5 padding) in the EVP
4929 API, which was previously mandatory. This means that the data is
4930 not padded in any way and so the total length much be a multiple
4931 of the block size, otherwise an error occurs.
4934 *) Initial (incomplete) OCSP SSL support.
4937 *) New function OCSP_parse_url(). This splits up a URL into its host,
4938 port and path components: primarily to parse OCSP URLs. New -url
4939 option to ocsp utility.
4942 *) New nonce behavior. The return value of OCSP_check_nonce() now
4943 reflects the various checks performed. Applications can decide
4944 whether to tolerate certain situations such as an absent nonce
4945 in a response when one was present in a request: the ocsp application
4946 just prints out a warning. New function OCSP_add1_basic_nonce()
4947 this is to allow responders to include a nonce in a response even if
4948 the request is nonce-less.
4951 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4952 skipped when using openssl x509 multiple times on a single input file,
4953 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4956 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4957 set string type: to handle setting ASN1_TIME structures. Fix ca
4958 utility to correctly initialize revocation date of CRLs.
4961 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4962 the clients preferred ciphersuites and rather use its own preferences.
4963 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4964 Internet Explorer by ensuring unchanged hash method during stepup.
4965 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4968 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4969 to aes and add a new 'exist' option to print out symbols that don't
4973 *) Additional options to ocsp utility to allow flags to be set and
4974 additional certificates supplied.
4977 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4978 OCSP client a number of certificate to only verify the response
4982 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4983 handle the new API. Currently only ECB, CBC modes supported. Add new
4986 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4987 Encryption Standard (AES) Ciphersuites for Transport Layer
4988 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4989 not enabled by default and were not part of the "ALL" ciphersuite
4990 alias because they were not yet official; they could be
4991 explicitly requested by specifying the "AESdraft" ciphersuite
4992 group alias. In the final release of OpenSSL 0.9.7, the group
4993 alias is called "AES" and is part of "ALL".)
4994 [Ben Laurie, Steve Henson, Bodo Moeller]
4996 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4997 request to response.
5000 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5001 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5002 extract information from a certificate request. OCSP_response_create()
5003 creates a response and optionally adds a basic response structure.
5004 OCSP_basic_add1_status() adds a complete single response to a basic
5005 response and returns the OCSP_SINGLERESP structure just added (to allow
5006 extensions to be included for example). OCSP_basic_add1_cert() adds a
5007 certificate to a basic response and OCSP_basic_sign() signs a basic
5008 response with various flags. New helper functions ASN1_TIME_check()
5009 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5010 (converts ASN1_TIME to GeneralizedTime).
5013 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5014 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5015 structure from a certificate. X509_pubkey_digest() digests the public_key
5016 contents: this is used in various key identifiers.
5019 *) Make sk_sort() tolerate a NULL argument.
5020 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5022 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5023 passed by the function are trusted implicitly. If any of them signed the
5024 response then it is assumed to be valid and is not verified.
5027 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5028 to data. This was previously part of the PKCS7 ASN1 code. This
5029 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5030 [Steve Henson, reported by Kenneth R. Robinette
5031 <support@securenetterm.com>]
5033 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5034 routines: without these tracing memory leaks is very painful.
5035 Fix leaks in PKCS12 and PKCS7 routines.
5038 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5039 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5040 effectively meant GeneralizedTime would never be used. Now it
5041 is initialised to -1 but X509_time_adj() now has to check the value
5042 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5043 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5044 [Steve Henson, reported by Kenneth R. Robinette
5045 <support@securenetterm.com>]
5047 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5048 result in a zero length in the ASN1_INTEGER structure which was
5049 not consistent with the structure when d2i_ASN1_INTEGER() was used
5050 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5051 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5052 where it did not print out a minus for negative ASN1_INTEGER.
5055 *) Add summary printout to ocsp utility. The various functions which
5056 convert status values to strings have been renamed to:
5057 OCSP_response_status_str(), OCSP_cert_status_str() and
5058 OCSP_crl_reason_str() and are no longer static. New options
5059 to verify nonce values and to disable verification. OCSP response
5060 printout format cleaned up.
5063 *) Add additional OCSP certificate checks. These are those specified
5064 in RFC2560. This consists of two separate checks: the CA of the
5065 certificate being checked must either be the OCSP signer certificate
5066 or the issuer of the OCSP signer certificate. In the latter case the
5067 OCSP signer certificate must contain the OCSP signing extended key
5068 usage. This check is performed by attempting to match the OCSP
5069 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5070 in the OCSP_CERTID structures of the response.
5073 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5074 and related routines. This uses the standard OpenSSL certificate
5075 verify routines to perform initial checks (just CA validity) and
5076 to obtain the certificate chain. Then additional checks will be
5077 performed on the chain. Currently the root CA is checked to see
5078 if it is explicitly trusted for OCSP signing. This is used to set
5079 a root CA as a global signing root: that is any certificate that
5080 chains to that CA is an acceptable OCSP signing certificate.
5083 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5084 extensions from a separate configuration file.
5085 As when reading extensions from the main configuration file,
5086 the '-extensions ...' option may be used for specifying the
5088 [Massimiliano Pala <madwolf@comune.modena.it>]
5090 *) New OCSP utility. Allows OCSP requests to be generated or
5091 read. The request can be sent to a responder and the output
5092 parsed, outputed or printed in text form. Not complete yet:
5093 still needs to check the OCSP response validity.
5096 *) New subcommands for 'openssl ca':
5097 'openssl ca -status <serial>' prints the status of the cert with
5098 the given serial number (according to the index file).
5099 'openssl ca -updatedb' updates the expiry status of certificates
5101 [Massimiliano Pala <madwolf@comune.modena.it>]
5103 *) New '-newreq-nodes' command option to CA.pl. This is like
5104 '-newreq', but calls 'openssl req' with the '-nodes' option
5105 so that the resulting key is not encrypted.
5106 [Damien Miller <djm@mindrot.org>]
5108 *) New configuration for the GNU Hurd.
5109 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5111 *) Initial code to implement OCSP basic response verify. This
5112 is currently incomplete. Currently just finds the signer's
5113 certificate and verifies the signature on the response.
5116 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5117 value of OPENSSLDIR. This is available via the new '-d' option
5118 to 'openssl version', and is also included in 'openssl version -a'.
5121 *) Allowing defining memory allocation callbacks that will be given
5122 file name and line number information in additional arguments
5123 (a const char* and an int). The basic functionality remains, as
5124 well as the original possibility to just replace malloc(),
5125 realloc() and free() by functions that do not know about these
5126 additional arguments. To register and find out the current
5127 settings for extended allocation functions, the following
5128 functions are provided:
5130 CRYPTO_set_mem_ex_functions
5131 CRYPTO_set_locked_mem_ex_functions
5132 CRYPTO_get_mem_ex_functions
5133 CRYPTO_get_locked_mem_ex_functions
5135 These work the same way as CRYPTO_set_mem_functions and friends.
5136 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5137 extended allocation function is enabled.
5138 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5139 a conventional allocation function is enabled.
5140 [Richard Levitte, Bodo Moeller]
5142 *) Finish off removing the remaining LHASH function pointer casts.
5143 There should no longer be any prototype-casting required when using
5144 the LHASH abstraction, and any casts that remain are "bugs". See
5145 the callback types and macros at the head of lhash.h for details
5146 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5149 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5150 If /dev/[u]random devices are not available or do not return enough
5151 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5153 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5154 /etc/entropy will be queried once each in this sequence, quering stops
5155 when enough entropy was collected without querying more sockets.
5158 *) Change the Unix RAND_poll() variant to be able to poll several
5159 random devices, as specified by DEVRANDOM, until a sufficient amount
5160 of data has been collected. We spend at most 10 ms on each file
5161 (select timeout) and read in non-blocking mode. DEVRANDOM now
5162 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5163 (previously it was just the string "/dev/urandom"), so on typical
5164 platforms the 10 ms delay will never occur.
5165 Also separate out the Unix variant to its own file, rand_unix.c.
5166 For VMS, there's a currently-empty rand_vms.c.
5169 *) Move OCSP client related routines to ocsp_cl.c. These
5170 provide utility functions which an application needing
5171 to issue a request to an OCSP responder and analyse the
5172 response will typically need: as opposed to those which an
5173 OCSP responder itself would need which will be added later.
5175 OCSP_request_sign() signs an OCSP request with an API similar
5176 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5177 response. OCSP_response_get1_basic() extracts basic response
5178 from response. OCSP_resp_find_status(): finds and extracts status
5179 information from an OCSP_CERTID structure (which will be created
5180 when the request structure is built). These are built from lower
5181 level functions which work on OCSP_SINGLERESP structures but
5182 wont normally be used unless the application wishes to examine
5183 extensions in the OCSP response for example.
5185 Replace nonce routines with a pair of functions.
5186 OCSP_request_add1_nonce() adds a nonce value and optionally
5187 generates a random value. OCSP_check_nonce() checks the
5188 validity of the nonce in an OCSP response.
5191 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5192 This doesn't copy the supplied OCSP_CERTID and avoids the
5193 need to free up the newly created id. Change return type
5194 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5195 This can then be used to add extensions to the request.
5196 Deleted OCSP_request_new(), since most of its functionality
5197 is now in OCSP_REQUEST_new() (and the case insensitive name
5198 clash) apart from the ability to set the request name which
5199 will be added elsewhere.
5202 *) Update OCSP API. Remove obsolete extensions argument from
5203 various functions. Extensions are now handled using the new
5204 OCSP extension code. New simple OCSP HTTP function which
5205 can be used to send requests and parse the response.
5208 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5209 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5210 uses the special reorder version of SET OF to sort the attributes
5211 and reorder them to match the encoded order. This resolves a long
5212 standing problem: a verify on a PKCS7 structure just after signing
5213 it used to fail because the attribute order did not match the
5214 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5215 it uses the received order. This is necessary to tolerate some broken
5216 software that does not order SET OF. This is handled by encoding
5217 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5218 to produce the required SET OF.
5221 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5222 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5223 files to get correct declarations of the ASN.1 item variables.
5226 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5227 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5228 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5229 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5230 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5231 ASN1_ITEM and no wrapper functions.
5234 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5235 replace the old function pointer based I/O routines. Change most of
5236 the *_d2i_bio() and *_d2i_fp() functions to use these.
5239 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5240 lines, recognice more "algorithms" that can be deselected, and make
5241 it complain about algorithm deselection that isn't recognised.
5244 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5245 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5246 to use new functions. Add NO_ASN1_OLD which can be set to remove
5247 some old style ASN1 functions: this can be used to determine if old
5248 code will still work when these eventually go away.
5251 *) New extension functions for OCSP structures, these follow the
5252 same conventions as certificates and CRLs.
5255 *) New function X509V3_add1_i2d(). This automatically encodes and
5256 adds an extension. Its behaviour can be customised with various
5257 flags to append, replace or delete. Various wrappers added for
5258 certifcates and CRLs.
5261 *) Fix to avoid calling the underlying ASN1 print routine when
5262 an extension cannot be parsed. Correct a typo in the
5263 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5266 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5267 entries for variables.
5270 *) Add functionality to apps/openssl.c for detecting locking
5271 problems: As the program is single-threaded, all we have
5272 to do is register a locking callback using an array for
5273 storing which locks are currently held by the program.
5276 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5277 SSL_get_ex_data_X509_STORE_idx(), which is used in
5278 ssl_verify_cert_chain() and thus can be called at any time
5279 during TLS/SSL handshakes so that thread-safety is essential.
5280 Unfortunately, the ex_data design is not at all suited
5281 for multi-threaded use, so it probably should be abolished.
5284 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5285 [Broadcom, tweaked and integrated by Geoff Thorpe]
5287 *) Move common extension printing code to new function
5288 X509V3_print_extensions(). Reorganise OCSP print routines and
5289 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5292 *) New function X509_signature_print() to remove duplication in some
5296 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5297 set (this was treated exactly the same as SET OF previously). This
5298 is used to reorder the STACK representing the structure to match the
5299 encoding. This will be used to get round a problem where a PKCS7
5300 structure which was signed could not be verified because the STACK
5301 order did not reflect the encoded order.
5304 *) Reimplement the OCSP ASN1 module using the new code.
5307 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5308 for its ASN1 operations. The old style function pointers still exist
5309 for now but they will eventually go away.
5312 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5313 completely replaces the old ASN1 functionality with a table driven
5314 encoder and decoder which interprets an ASN1_ITEM structure describing
5315 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5316 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5317 has also been converted to the new form.
5320 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5321 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5322 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5323 for negative moduli.
5326 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5327 of not touching the result's sign bit.
5330 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5334 *) Changed the LHASH code to use prototypes for callbacks, and created
5335 macros to declare and implement thin (optionally static) functions
5336 that provide type-safety and avoid function pointer casting for the
5337 type-specific callbacks.
5340 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5342 [Veers Staats <staatsvr@asc.hpc.mil>,
5343 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5345 *) Reformat the FAQ so the different questions and answers can be divided
5346 in sections depending on the subject.
5349 *) Have the zlib compression code load ZLIB.DLL dynamically under
5353 *) New function BN_mod_sqrt for computing square roots modulo a prime
5354 (using the probabilistic Tonelli-Shanks algorithm unless
5355 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5356 be handled deterministically).
5357 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5359 *) Make BN_mod_inverse faster by explicitly handling small quotients
5360 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5361 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5364 *) New function BN_kronecker.
5367 *) Fix BN_gcd so that it works on negative inputs; the result is
5368 positive unless both parameters are zero.
5369 Previously something reasonably close to an infinite loop was
5370 possible because numbers could be growing instead of shrinking
5371 in the implementation of Euclid's algorithm.
5374 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5375 sign of the number in question.
5377 Fix BN_is_word(a,w) to work correctly for w == 0.
5379 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5380 because its test if the absolute value of 'a' equals 'w'.
5381 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5382 it exists mostly for use in the implementations of BN_is_zero(),
5383 BN_is_one(), and BN_is_word().
5386 *) New function BN_swap.
5389 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5390 the exponentiation functions are more likely to produce reasonable
5391 results on negative inputs.
5394 *) Change BN_mod_mul so that the result is always non-negative.
5395 Previously, it could be negative if one of the factors was negative;
5396 I don't think anyone really wanted that behaviour.
5399 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5400 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5401 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5402 and add new functions:
5411 BN_mod_lshift1_quick
5415 These functions always generate non-negative results.
5417 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5418 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5420 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5421 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5422 be reduced modulo m.
5423 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5426 The following entry accidentily appeared in the CHANGES file
5427 distributed with OpenSSL 0.9.7. The modifications described in
5428 it do *not* apply to OpenSSL 0.9.7.
5430 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5431 was actually never needed) and in BN_mul(). The removal in BN_mul()
5432 required a small change in bn_mul_part_recursive() and the addition
5433 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5434 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5435 bn_sub_words() and bn_add_words() except they take arrays with
5440 *) In 'openssl passwd', verify passwords read from the terminal
5441 unless the '-salt' option is used (which usually means that
5442 verification would just waste user's time since the resulting
5443 hash is going to be compared with some given password hash)
5444 or the new '-noverify' option is used.
5446 This is an incompatible change, but it does not affect
5447 non-interactive use of 'openssl passwd' (passwords on the command
5448 line, '-stdin' option, '-in ...' option) and thus should not
5452 *) Remove all references to RSAref, since there's no more need for it.
5455 *) Make DSO load along a path given through an environment variable
5456 (SHLIB_PATH) with shl_load().
5459 *) Constify the ENGINE code as a result of BIGNUM constification.
5460 Also constify the RSA code and most things related to it. In a
5461 few places, most notable in the depth of the ASN.1 code, ugly
5462 casts back to non-const were required (to be solved at a later
5466 *) Make it so the openssl application has all engines loaded by default.
5469 *) Constify the BIGNUM routines a little more.
5472 *) Add the following functions:
5474 ENGINE_load_cswift()
5476 ENGINE_load_atalla()
5478 ENGINE_load_builtin_engines()
5480 That way, an application can itself choose if external engines that
5481 are built-in in OpenSSL shall ever be used or not. The benefit is
5482 that applications won't have to be linked with libdl or other dso
5483 libraries unless it's really needed.
5485 Changed 'openssl engine' to load all engines on demand.
5486 Changed the engine header files to avoid the duplication of some
5487 declarations (they differed!).
5490 *) 'openssl engine' can now list capabilities.
5493 *) Better error reporting in 'openssl engine'.
5496 *) Never call load_dh_param(NULL) in s_server.
5499 *) Add engine application. It can currently list engines by name and
5500 identity, and test if they are actually available.
5503 *) Improve RPM specification file by forcing symbolic linking and making
5504 sure the installed documentation is also owned by root.root.
5505 [Damien Miller <djm@mindrot.org>]
5507 *) Give the OpenSSL applications more possibilities to make use of
5508 keys (public as well as private) handled by engines.
5511 *) Add OCSP code that comes from CertCo.
5514 *) Add VMS support for the Rijndael code.
5517 *) Added untested support for Nuron crypto accelerator.
5520 *) Add support for external cryptographic devices. This code was
5521 previously distributed separately as the "engine" branch.
5522 [Geoff Thorpe, Richard Levitte]
5524 *) Rework the filename-translation in the DSO code. It is now possible to
5525 have far greater control over how a "name" is turned into a filename
5526 depending on the operating environment and any oddities about the
5527 different shared library filenames on each system.
5530 *) Support threads on FreeBSD-elf in Configure.
5533 *) Fix for SHA1 assembly problem with MASM: it produces
5534 warnings about corrupt line number information when assembling
5535 with debugging information. This is caused by the overlapping
5537 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5540 NCONF_get_number() has no error checking at all. As a replacement,
5541 NCONF_get_number_e() is defined (_e for "error checking") and is
5542 promoted strongly. The old NCONF_get_number is kept around for
5543 binary backward compatibility.
5544 Make it possible for methods to load from something other than a BIO,
5545 by providing a function pointer that is given a name instead of a BIO.
5546 For example, this could be used to load configuration data from an
5550 *) Fix for non blocking accept BIOs. Added new I/O special reason
5551 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5552 with non blocking I/O was not possible because no retry code was
5553 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5557 *) Added the beginnings of Rijndael support.
5560 *) Fix for bug in DirectoryString mask setting. Add support for
5561 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5562 to allow certificate printing to more controllable, additional
5563 'certopt' option to 'x509' to allow new printing options to be
5567 *) Clean old EAY MD5 hack from e_os.h.
5570 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5572 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5573 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5574 [Joe Orton, Steve Henson]
5576 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5578 *) Fix additional bug revealed by the NISCC test suite:
5580 Stop bug triggering large recursion when presented with
5581 certain ASN.1 tags (CVE-2003-0851)
5584 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5586 *) Fix various bugs revealed by running the NISCC test suite:
5588 Stop out of bounds reads in the ASN1 code when presented with
5589 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5591 If verify callback ignores invalid public key errors don't try to check
5592 certificate signature with the NULL public key.
5596 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5597 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5601 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5602 extra data after the compression methods not only for TLS 1.0
5603 but also for SSL 3.0 (as required by the specification).
5604 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5606 *) Change X509_certificate_type() to mark the key as exported/exportable
5607 when it's 512 *bits* long, not 512 bytes.
5610 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5612 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5613 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5614 a protocol version number mismatch like a decryption error
5615 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5618 *) Turn on RSA blinding by default in the default implementation
5619 to avoid a timing attack. Applications that don't want it can call
5620 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5621 They would be ill-advised to do so in most cases.
5622 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5624 *) Change RSA blinding code so that it works when the PRNG is not
5625 seeded (in this case, the secret RSA exponent is abused as
5626 an unpredictable seed -- if it is not unpredictable, there
5627 is no point in blinding anyway). Make RSA blinding thread-safe
5628 by remembering the creator's thread ID in rsa->blinding and
5629 having all other threads use local one-time blinding factors
5630 (this requires more computation than sharing rsa->blinding, but
5631 avoids excessive locking; and if an RSA object is not shared
5632 between threads, blinding will still be very fast).
5635 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5637 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5638 via timing by performing a MAC computation even if incorrrect
5639 block cipher padding has been found. This is a countermeasure
5640 against active attacks where the attacker has to distinguish
5641 between bad padding and a MAC verification error. (CVE-2003-0078)
5643 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5644 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5645 Martin Vuagnoux (EPFL, Ilion)]
5647 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5649 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5650 memory from it's contents. This is done with a counter that will
5651 place alternating values in each byte. This can be used to solve
5652 two issues: 1) the removal of calls to memset() by highly optimizing
5653 compilers, and 2) cleansing with other values than 0, since those can
5654 be read through on certain media, for example a swap space on disk.
5657 *) Bugfix: client side session caching did not work with external caching,
5658 because the session->cipher setting was not restored when reloading
5659 from the external cache. This problem was masked, when
5660 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5661 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5664 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5665 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5666 [Zeev Lieber <zeev-l@yahoo.com>]
5668 *) Undo an undocumented change introduced in 0.9.6e which caused
5669 repeated calls to OpenSSL_add_all_ciphers() and
5670 OpenSSL_add_all_digests() to be ignored, even after calling
5674 *) Change the default configuration reader to deal with last line not
5675 being properly terminated.
5678 *) Change X509_NAME_cmp() so it applies the special rules on handling
5679 DN values that are of type PrintableString, as well as RDNs of type
5680 emailAddress where the value has the type ia5String.
5681 [stefank@valicert.com via Richard Levitte]
5683 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5684 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5685 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5686 the bitwise-OR of the two for use by the majority of applications
5687 wanting this behaviour, and update the docs. The documented
5688 behaviour and actual behaviour were inconsistent and had been
5689 changing anyway, so this is more a bug-fix than a behavioural
5691 [Geoff Thorpe, diagnosed by Nadav Har'El]
5693 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5694 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5697 *) Fix initialization code race conditions in
5698 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5699 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5700 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5701 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5702 ssl2_get_cipher_by_char(),
5703 ssl3_get_cipher_by_char().
5704 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5706 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5707 the cached sessions are flushed, as the remove_cb() might use ex_data
5708 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5709 (see [openssl.org #212]).
5710 [Geoff Thorpe, Lutz Jaenicke]
5712 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5713 length, instead of the encoding length to d2i_ASN1_OBJECT.
5716 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5718 *) [In 0.9.6g-engine release:]
5719 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5720 [Lynn Gazis <lgazis@rainbow.com>]
5722 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5724 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5725 and get fix the header length calculation.
5726 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5727 Alon Kantor <alonk@checkpoint.com> (and others),
5730 *) Use proper error handling instead of 'assertions' in buffer
5731 overflow checks added in 0.9.6e. This prevents DoS (the
5732 assertions could call abort()).
5733 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5735 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5737 *) Add various sanity checks to asn1_get_length() to reject
5738 the ASN1 length bytes if they exceed sizeof(long), will appear
5739 negative or the content length exceeds the length of the
5741 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5743 *) Fix cipher selection routines: ciphers without encryption had no flags
5744 for the cipher strength set and where therefore not handled correctly
5745 by the selection routines (PR #130).
5748 *) Fix EVP_dsa_sha macro.
5752 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5753 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5754 that was added in OpenSSL 0.9.6d.
5756 As the countermeasure turned out to be incompatible with some
5757 broken SSL implementations, the new option is part of SSL_OP_ALL.
5758 SSL_OP_ALL is usually employed when compatibility with weird SSL
5759 implementations is desired (e.g. '-bugs' option to 's_client' and
5760 's_server'), so the new option is automatically set in many
5764 *) Changes in security patch:
5766 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5767 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5768 Air Force Materiel Command, USAF, under agreement number
5771 *) Add various sanity checks to asn1_get_length() to reject
5772 the ASN1 length bytes if they exceed sizeof(long), will appear
5773 negative or the content length exceeds the length of the
5774 supplied buffer. (CVE-2002-0659)
5775 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5777 *) Assertions for various potential buffer overflows, not known to
5779 [Ben Laurie (CHATS)]
5781 *) Various temporary buffers to hold ASCII versions of integers were
5782 too small for 64 bit platforms. (CVE-2002-0655)
5783 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5785 *) Remote buffer overflow in SSL3 protocol - an attacker could
5786 supply an oversized session ID to a client. (CVE-2002-0656)
5787 [Ben Laurie (CHATS)]
5789 *) Remote buffer overflow in SSL2 protocol - an attacker could
5790 supply an oversized client master key. (CVE-2002-0656)
5791 [Ben Laurie (CHATS)]
5793 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5795 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5796 encoded as NULL) with id-dsa-with-sha1.
5797 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5799 *) Check various X509_...() return values in apps/req.c.
5800 [Nils Larsch <nla@trustcenter.de>]
5802 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5803 an end-of-file condition would erronously be flagged, when the CRLF
5804 was just at the end of a processed block. The bug was discovered when
5805 processing data through a buffering memory BIO handing the data to a
5806 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5807 <ptsekov@syntrex.com> and Nedelcho Stanev.
5810 *) Implement a countermeasure against a vulnerability recently found
5811 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5812 before application data chunks to avoid the use of known IVs
5813 with data potentially chosen by the attacker.
5816 *) Fix length checks in ssl3_get_client_hello().
5819 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5820 to prevent ssl3_read_internal() from incorrectly assuming that
5821 ssl3_read_bytes() found application data while handshake
5822 processing was enabled when in fact s->s3->in_read_app_data was
5823 merely automatically cleared during the initial handshake.
5824 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5826 *) Fix object definitions for Private and Enterprise: they were not
5827 recognized in their shortname (=lowercase) representation. Extend
5828 obj_dat.pl to issue an error when using undefined keywords instead
5829 of silently ignoring the problem (Svenning Sorensen
5830 <sss@sss.dnsalias.net>).
5833 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5834 generators, i.e. generators other than 2 and 5. (Previously, the
5835 code did not properly initialise the 'add' and 'rem' values to
5836 BN_generate_prime().)
5838 In the new general case, we do not insist that 'generator' is
5839 actually a primitive root: This requirement is rather pointless;
5840 a generator of the order-q subgroup is just as good, if not
5844 *) Map new X509 verification errors to alerts. Discovered and submitted by
5845 Tom Wu <tom@arcot.com>.
5848 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5849 returning non-zero before the data has been completely received
5850 when using non-blocking I/O.
5851 [Bodo Moeller; problem pointed out by John Hughes]
5853 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5854 [Ben Laurie, Lutz Jaenicke]
5856 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5857 Yoram Zahavi <YoramZ@gilian.com>).
5860 *) Add information about CygWin 1.3 and on, and preserve proper
5861 configuration for the versions before that.
5862 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5864 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5865 check whether we deal with a copy of a session and do not delete from
5866 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5867 <izhar@checkpoint.com>.
5870 *) Do not store session data into the internal session cache, if it
5871 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5872 flag is set). Proposed by Aslam <aslam@funk.com>.
5875 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5879 *) [In 0.9.6d-engine release:]
5880 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5881 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5883 *) Add the configuration target linux-s390x.
5884 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5886 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5887 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5888 variable as an indication that a ClientHello message has been
5889 received. As the flag value will be lost between multiple
5890 invocations of ssl3_accept when using non-blocking I/O, the
5891 function may not be aware that a handshake has actually taken
5892 place, thus preventing a new session from being added to the
5895 To avoid this problem, we now set s->new_session to 2 instead of
5896 using a local variable.
5897 [Lutz Jaenicke, Bodo Moeller]
5899 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5900 if the SSL_R_LENGTH_MISMATCH error is detected.
5901 [Geoff Thorpe, Bodo Moeller]
5903 *) New 'shared_ldflag' column in Configure platform table.
5906 *) Fix EVP_CIPHER_mode macro.
5907 ["Dan S. Camper" <dan@bti.net>]
5909 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5910 type, we must throw them away by setting rr->length to 0.
5911 [D P Chang <dpc@qualys.com>]
5913 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5915 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5916 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5917 worked incorrectly for those cases where range = 10..._2 and
5918 3*range is two bits longer than range.)
5921 *) Only add signing time to PKCS7 structures if it is not already
5925 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5926 OBJ_ld_ce should be OBJ_id_ce.
5927 Also some ip-pda OIDs in crypto/objects/objects.txt were
5928 incorrect (cf. RFC 3039).
5929 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5931 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5932 returns early because it has nothing to do.
5933 [Andy Schneider <andy.schneider@bjss.co.uk>]
5935 *) [In 0.9.6c-engine release:]
5936 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5937 [Andy Schneider <andy.schneider@bjss.co.uk>]
5939 *) [In 0.9.6c-engine release:]
5940 Add support for Cryptographic Appliance's keyserver technology.
5941 (Use engine 'keyclient')
5942 [Cryptographic Appliances and Geoff Thorpe]
5944 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5945 is called via tools/c89.sh because arguments have to be
5946 rearranged (all '-L' options must appear before the first object
5948 [Richard Shapiro <rshapiro@abinitio.com>]
5950 *) [In 0.9.6c-engine release:]
5951 Add support for Broadcom crypto accelerator cards, backported
5953 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5955 *) [In 0.9.6c-engine release:]
5956 Add support for SureWare crypto accelerator cards from
5957 Baltimore Technologies. (Use engine 'sureware')
5958 [Baltimore Technologies and Mark Cox]
5960 *) [In 0.9.6c-engine release:]
5961 Add support for crypto accelerator cards from Accelerated
5962 Encryption Processing, www.aep.ie. (Use engine 'aep')
5963 [AEP Inc. and Mark Cox]
5965 *) Add a configuration entry for gcc on UnixWare.
5966 [Gary Benson <gbenson@redhat.com>]
5968 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5969 messages are stored in a single piece (fixed-length part and
5970 variable-length part combined) and fix various bugs found on the way.
5973 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5974 instead. BIO_gethostbyname() does not know what timeouts are
5975 appropriate, so entries would stay in cache even when they have
5977 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5979 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5980 faced with a pathologically small ClientHello fragment that does
5981 not contain client_version: Instead of aborting with an error,
5982 simply choose the highest available protocol version (i.e.,
5983 TLS 1.0 unless it is disabled). In practice, ClientHello
5984 messages are never sent like this, but this change gives us
5985 strictly correct behaviour at least for TLS.
5988 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5989 never resets s->method to s->ctx->method when called from within
5990 one of the SSL handshake functions.
5991 [Bodo Moeller; problem pointed out by Niko Baric]
5993 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5994 (sent using the client's version number) if client_version is
5995 smaller than the protocol version in use. Also change
5996 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5997 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5998 the client will at least see that alert.
6001 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6005 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6006 client receives HelloRequest while in a handshake.
6007 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6009 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6010 should end in 'break', not 'goto end' which circuments various
6011 cleanups done in state SSL_ST_OK. But session related stuff
6012 must be disabled for SSL_ST_OK in the case that we just sent a
6015 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6016 before just sending a HelloRequest.
6017 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6019 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6020 reveal whether illegal block cipher padding was found or a MAC
6021 verification error occured. (Neither SSLerr() codes nor alerts
6022 are directly visible to potential attackers, but the information
6023 may leak via logfiles.)
6025 Similar changes are not required for the SSL 2.0 implementation
6026 because the number of padding bytes is sent in clear for SSL 2.0,
6027 and the extra bytes are just ignored. However ssl/s2_pkt.c
6028 failed to verify that the purported number of padding bytes is in
6032 *) Add OpenUNIX-8 support including shared libraries
6033 (Boyd Lynn Gerber <gerberb@zenez.com>).
6036 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6037 'wristwatch attack' using huge encoding parameters (cf.
6038 James H. Manger's CRYPTO 2001 paper). Note that the
6039 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6040 encoding parameters and hence was not vulnerable.
6043 *) BN_sqr() bug fix.
6044 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6046 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6047 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6048 followed by modular reduction.
6049 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6051 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6052 equivalent based on BN_pseudo_rand() instead of BN_rand().
6055 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6056 This function was broken, as the check for a new client hello message
6057 to handle SGC did not allow these large messages.
6058 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6061 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6064 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6065 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6068 *) Rework the configuration and shared library support for Tru64 Unix.
6069 The configuration part makes use of modern compiler features and
6070 still retains old compiler behavior for those that run older versions
6071 of the OS. The shared library support part includes a variant that
6072 uses the RPATH feature, and is available through the special
6073 configuration target "alpha-cc-rpath", which will never be selected
6075 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6077 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6078 with the same message size as in ssl3_get_certificate_request().
6079 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6080 messages might inadvertently be reject as too long.
6081 [Petr Lampa <lampa@fee.vutbr.cz>]
6083 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6086 *) Modified SSL library such that the verify_callback that has been set
6087 specificly for an SSL object with SSL_set_verify() is actually being
6088 used. Before the change, a verify_callback set with this function was
6089 ignored and the verify_callback() set in the SSL_CTX at the time of
6090 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6091 to allow the necessary settings.
6094 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6095 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6096 done automatically (in contradiction to the requirements of the C
6097 standard). This made problems when used from OpenSSH.
6100 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6101 dh->length and always used
6103 BN_rand_range(priv_key, dh->p).
6105 BN_rand_range() is not necessary for Diffie-Hellman, and this
6106 specific range makes Diffie-Hellman unnecessarily inefficient if
6107 dh->length (recommended exponent length) is much smaller than the
6108 length of dh->p. We could use BN_rand_range() if the order of
6109 the subgroup was stored in the DH structure, but we only have
6114 BN_rand(priv_key, l, ...)
6116 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6122 RSA_eay_public_encrypt
6123 RSA_eay_private_decrypt
6124 RSA_eay_private_encrypt (signing)
6125 RSA_eay_public_decrypt (signature verification)
6127 (default implementations for RSA_public_encrypt,
6128 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6129 always reject numbers >= n.
6132 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6133 to synchronize access to 'locking_thread'. This is necessary on
6134 systems where access to 'locking_thread' (an 'unsigned long'
6135 variable) is not atomic.
6138 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6139 *before* setting the 'crypto_lock_rand' flag. The previous code had
6140 a race condition if 0 is a valid thread ID.
6141 [Travis Vitek <vitek@roguewave.com>]
6143 *) Add support for shared libraries under Irix.
6144 [Albert Chin-A-Young <china@thewrittenword.com>]
6146 *) Add configuration option to build on Linux on both big-endian and
6148 [Ralf Baechle <ralf@uni-koblenz.de>]
6150 *) Add the possibility to create shared libraries on HP-UX.
6153 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6155 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6156 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6157 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6158 PRNG state recovery was possible based on the output of
6159 one PRNG request appropriately sized to gain knowledge on
6160 'md' followed by enough consecutive 1-byte PRNG requests
6161 to traverse all of 'state'.
6163 1. When updating 'md_local' (the current thread's copy of 'md')
6164 during PRNG output generation, hash all of the previous
6165 'md_local' value, not just the half used for PRNG output.
6167 2. Make the number of bytes from 'state' included into the hash
6168 independent from the number of PRNG bytes requested.
6170 The first measure alone would be sufficient to avoid
6171 Markku-Juhani's attack. (Actually it had never occurred
6172 to me that the half of 'md_local' used for chaining was the
6173 half from which PRNG output bytes were taken -- I had always
6174 assumed that the secret half would be used.) The second
6175 measure makes sure that additional data from 'state' is never
6176 mixed into 'md_local' in small portions; this heuristically
6177 further strengthens the PRNG.
6180 *) Fix crypto/bn/asm/mips3.s.
6183 *) When only the key is given to "enc", the IV is undefined. Print out
6184 an error message in this case.
6187 *) Handle special case when X509_NAME is empty in X509 printing routines.
6190 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6191 positive and less than q.
6194 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6195 used: it isn't thread safe and the add_lock_callback should handle
6197 [Paul Rose <Paul.Rose@bridge.com>]
6199 *) Verify that incoming data obeys the block size in
6200 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6204 [Ulf Möller, Bodo Möller]
6206 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6207 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6208 when fixing the server behaviour for backwards-compatible 'client
6209 hello' messages. (Note that the attack is impractical against
6210 SSL 3.0 and TLS 1.0 anyway because length and version checking
6211 means that the probability of guessing a valid ciphertext is
6212 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6215 Before 0.9.5, the countermeasure (hide the error by generating a
6216 random 'decryption result') did not work properly because
6217 ERR_clear_error() was missing, meaning that SSL_get_error() would
6218 detect the supposedly ignored error.
6220 Both problems are now fixed.
6223 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6224 (previously it was 1024).
6227 *) Fix for compatibility mode trust settings: ignore trust settings
6228 unless some valid trust or reject settings are present.
6231 *) Fix for blowfish EVP: its a variable length cipher.
6234 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6235 parameters in DSA public key structures and return an error in the
6236 DSA routines if parameters are absent.
6239 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6240 in the current directory if neither $RANDFILE nor $HOME was set.
6241 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6242 caused some confusion to Windows users who haven't defined $HOME.
6243 Thus RAND_file_name() is changed again: e_os.h can define a
6244 DEFAULT_HOME, which will be used if $HOME is not set.
6245 For Windows, we use "C:"; on other platforms, we still require
6246 environment variables.
6248 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6249 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6250 having multiple threads call RAND_poll() concurrently.
6253 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6254 combination of a flag and a thread ID variable.
6255 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6256 flag), *other* threads can enter ssleay_add_bytes without obeying
6257 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6258 that they do not hold after the first thread unsets add_do_not_lock).
6261 *) Change bctest again: '-x' expressions are not available in all
6265 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6267 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6268 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6270 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6271 the default extension for executables, if any. Also, make the perl
6272 scripts that use symlink() to test if it really exists and use "cp"
6273 if it doesn't. All this made OpenSSL compilable and installable in
6277 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6278 If SEQUENCE is length is indefinite just set c->slen to the total
6279 amount of data available.
6280 [Steve Henson, reported by shige@FreeBSD.org]
6281 [This change does not apply to 0.9.7.]
6283 *) Change bctest to avoid here-documents inside command substitution
6284 (workaround for FreeBSD /bin/sh bug).
6285 For compatibility with Ultrix, avoid shell functions (introduced
6286 in the bctest version that searches along $PATH).
6289 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6290 with des_encrypt() defined on some operating systems, like Solaris
6294 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6295 On the Importance of Eliminating Errors in Cryptographic
6296 Computations, J. Cryptology 14 (2001) 2, 101-119,
6297 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6300 *) MIPS assembler BIGNUM division bug fix.
6303 *) Disabled incorrect Alpha assembler code.
6306 *) Fix PKCS#7 decode routines so they correctly update the length
6307 after reading an EOC for the EXPLICIT tag.
6309 [This change does not apply to 0.9.7.]
6311 *) Fix bug in PKCS#12 key generation routines. This was triggered
6312 if a 3DES key was generated with a 0 initial byte. Include
6313 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6314 (but broken) behaviour.
6317 *) Enhance bctest to search for a working bc along $PATH and print
6319 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6321 *) Fix memory leaks in err.c: free err_data string if necessary;
6322 don't write to the wrong index in ERR_set_error_data.
6325 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6329 *) Replace rdtsc with _emit statements for VC++ version 5.
6330 [Jeremy Cooper <jeremy@baymoo.org>]
6332 *) Make it possible to reuse SSLv2 sessions.
6335 *) In copy_email() check for >= 0 as a return value for
6336 X509_NAME_get_index_by_NID() since 0 is a valid index.
6337 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6339 *) Avoid coredump with unsupported or invalid public keys by checking if
6340 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6341 PKCS7_verify() fails with non detached data.
6344 *) Don't use getenv in library functions when run as setuid/setgid.
6345 New function OPENSSL_issetugid().
6348 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6349 due to incorrect handling of multi-threading:
6351 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6353 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6355 3. Count how many times MemCheck_off() has been called so that
6356 nested use can be treated correctly. This also avoids
6357 inband-signalling in the previous code (which relied on the
6358 assumption that thread ID 0 is impossible).
6361 *) Add "-rand" option also to s_client and s_server.
6364 *) Fix CPU detection on Irix 6.x.
6365 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6366 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6368 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6371 [This change does not apply to 0.9.7.]
6373 *) Use the cached encoding of an X509_NAME structure rather than
6374 copying it. This is apparently the reason for the libsafe "errors"
6375 but the code is actually correct.
6378 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6379 Bleichenbacher's DSA attack.
6380 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6381 to be set and top=0 forces the highest bit to be set; top=-1 is new
6382 and leaves the highest bit random.
6383 [Ulf Moeller, Bodo Moeller]
6385 *) In the NCONF_...-based implementations for CONF_... queries
6386 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6387 a temporary CONF structure with the data component set to NULL
6388 (which gives segmentation faults in lh_retrieve).
6389 Instead, use NULL for the CONF pointer in CONF_get_string and
6390 CONF_get_number (which may use environment variables) and directly
6391 return NULL from CONF_get_section.
6394 *) Fix potential buffer overrun for EBCDIC.
6397 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6398 keyUsage if basicConstraints absent for a CA.
6401 *) Make SMIME_write_PKCS7() write mail header values with a format that
6402 is more generally accepted (no spaces before the semicolon), since
6403 some programs can't parse those values properly otherwise. Also make
6404 sure BIO's that break lines after each write do not create invalid
6408 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6409 macros previously used would not encode an empty SEQUENCE OF
6410 and break the signature.
6412 [This change does not apply to 0.9.7.]
6414 *) Zero the premaster secret after deriving the master secret in
6418 *) Add some EVP_add_digest_alias registrations (as found in
6419 OpenSSL_add_all_digests()) to SSL_library_init()
6420 aka OpenSSL_add_ssl_algorithms(). This provides improved
6421 compatibility with peers using X.509 certificates
6422 with unconventional AlgorithmIdentifier OIDs.
6425 *) Fix for Irix with NO_ASM.
6426 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6428 *) ./config script fixes.
6429 [Ulf Moeller, Richard Levitte]
6431 *) Fix 'openssl passwd -1'.
6434 *) Change PKCS12_key_gen_asc() so it can cope with non null
6435 terminated strings whose length is passed in the passlen
6436 parameter, for example from PEM callbacks. This was done
6437 by adding an extra length parameter to asc2uni().
6438 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6440 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6441 call failed, free the DSA structure.
6444 *) Fix to uni2asc() to cope with zero length Unicode strings.
6445 These are present in some PKCS#12 files.
6448 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6449 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6450 when writing a 32767 byte record.
6451 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6453 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6454 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6456 (RSA objects have a reference count access to which is protected
6457 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6458 so they are meant to be shared between threads.)
6459 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6460 "Reddie, Steven" <Steven.Reddie@ca.com>]
6462 *) Fix a deadlock in CRYPTO_mem_leaks().
6465 *) Use better test patterns in bntest.
6468 *) rand_win.c fix for Borland C.
6471 *) BN_rshift bugfix for n == 0.
6474 *) Add a 'bctest' script that checks for some known 'bc' bugs
6475 so that 'make test' does not abort just because 'bc' is broken.
6478 *) Store verify_result within SSL_SESSION also for client side to
6479 avoid potential security hole. (Re-used sessions on the client side
6480 always resulted in verify_result==X509_V_OK, not using the original
6481 result of the server certificate verification.)
6484 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6485 SSL3_RT_APPLICATION_DATA, return 0.
6486 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6490 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6491 releases, have been re-implemented by renaming the previous
6492 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6493 and ssl3_read_internal, respectively, and adding 'peek' parameters
6494 to them. The new ssl[23]_{read,peek} functions are calls to
6495 ssl[23]_read_internal with the 'peek' flag set appropriately.
6496 A 'peek' parameter has also been added to ssl3_read_bytes, which
6497 does the actual work for ssl3_read_internal.
6500 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6501 the method-specific "init()" handler. Also clean up ex_data after
6502 calling the method-specific "finish()" handler. Previously, this was
6503 happening the other way round.
6506 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6507 The previous value, 12, was not always sufficient for BN_mod_exp().
6510 *) Make sure that shared libraries get the internal name engine with
6511 the full version number and not just 0. This should mark the
6512 shared libraries as not backward compatible. Of course, this should
6513 be changed again when we can guarantee backward binary compatibility.
6516 *) Fix typo in get_cert_by_subject() in by_dir.c
6517 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6519 *) Rework the system to generate shared libraries:
6521 - Make note of the expected extension for the shared libraries and
6522 if there is a need for symbolic links from for example libcrypto.so.0
6523 to libcrypto.so.0.9.7. There is extended info in Configure for
6526 - Make as few rebuilds of the shared libraries as possible.
6528 - Still avoid linking the OpenSSL programs with the shared libraries.
6530 - When installing, install the shared libraries separately from the
6534 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6536 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6537 and not in SSL_clear because the latter is also used by the
6538 accept/connect functions; previously, the settings made by
6539 SSL_set_read_ahead would be lost during the handshake.
6540 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6542 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6543 Previously, it would create entries for disableed algorithms no
6547 *) Added several new manual pages for SSL_* function.
6550 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6552 *) In ssl23_get_client_hello, generate an error message when faced
6553 with an initial SSL 3.0/TLS record that is too small to contain the
6554 first two bytes of the ClientHello message, i.e. client_version.
6555 (Note that this is a pathologic case that probably has never happened
6556 in real life.) The previous approach was to use the version number
6557 from the record header as a substitute; but our protocol choice
6558 should not depend on that one because it is not authenticated
6559 by the Finished messages.
6562 *) More robust randomness gathering functions for Windows.
6563 [Jeffrey Altman <jaltman@columbia.edu>]
6565 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6566 not set then we don't setup the error code for issuer check errors
6567 to avoid possibly overwriting other errors which the callback does
6568 handle. If an application does set the flag then we assume it knows
6569 what it is doing and can handle the new informational codes
6573 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6574 a general "ANY" type, as such it should be able to decode anything
6575 including tagged types. However it didn't check the class so it would
6576 wrongly interpret tagged types in the same way as their universal
6577 counterpart and unknown types were just rejected. Changed so that the
6578 tagged and unknown types are handled in the same way as a SEQUENCE:
6579 that is the encoding is stored intact. There is also a new type
6580 "V_ASN1_OTHER" which is used when the class is not universal, in this
6581 case we have no idea what the actual type is so we just lump them all
6585 *) On VMS, stdout may very well lead to a file that is written to
6586 in a record-oriented fashion. That means that every write() will
6587 write a separate record, which will be read separately by the
6588 programs trying to read from it. This can be very confusing.
6590 The solution is to put a BIO filter in the way that will buffer
6591 text until a linefeed is reached, and then write everything a
6592 line at a time, so every record written will be an actual line,
6593 not chunks of lines and not (usually doesn't happen, but I've
6594 seen it once) several lines in one record. BIO_f_linebuffer() is
6597 Currently, it's a VMS-only method, because that's where it has
6598 been tested well enough.
6601 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6602 it can return incorrect results.
6603 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6604 but it was in 0.9.6-beta[12].)
6607 *) Disable the check for content being present when verifying detached
6608 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6609 include zero length content when signing messages.
6612 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6613 BIO_ctrl (for BIO pairs).
6616 *) Add DSO method for VMS.
6619 *) Bug fix: Montgomery multiplication could produce results with the
6623 *) Add RPM specification openssl.spec and modify it to build three
6624 packages. The default package contains applications, application
6625 documentation and run-time libraries. The devel package contains
6626 include files, static libraries and function documentation. The
6627 doc package contains the contents of the doc directory. The original
6628 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6631 *) Add a large number of documentation files for many SSL routines.
6632 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6634 *) Add a configuration entry for Sony News 4.
6635 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6637 *) Don't set the two most significant bits to one when generating a
6638 random number < q in the DSA library.
6641 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6642 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6643 the underlying transport is blocking) if a handshake took place.
6644 (The default behaviour is needed by applications such as s_client
6645 and s_server that use select() to determine when to use SSL_read;
6646 but for applications that know in advance when to expect data, it
6647 just makes things more complicated.)
6650 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6654 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6655 work better on such systems.
6656 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6658 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6659 Update PKCS12_parse() so it copies the friendlyName and the
6660 keyid to the certificates aux info.
6663 *) Fix bug in PKCS7_verify() which caused an infinite loop
6664 if there was more than one signature.
6665 [Sven Uszpelkat <su@celocom.de>]
6667 *) Major change in util/mkdef.pl to include extra information
6668 about each symbol, as well as presentig variables as well
6669 as functions. This change means that there's n more need
6670 to rebuild the .num files when some algorithms are excluded.
6673 *) Allow the verify time to be set by an application,
6674 rather than always using the current time.
6677 *) Phase 2 verify code reorganisation. The certificate
6678 verify code now looks up an issuer certificate by a
6679 number of criteria: subject name, authority key id
6680 and key usage. It also verifies self signed certificates
6681 by the same criteria. The main comparison function is
6682 X509_check_issued() which performs these checks.
6684 Lot of changes were necessary in order to support this
6685 without completely rewriting the lookup code.
6687 Authority and subject key identifier are now cached.
6689 The LHASH 'certs' is X509_STORE has now been replaced
6690 by a STACK_OF(X509_OBJECT). This is mainly because an
6691 LHASH can't store or retrieve multiple objects with
6692 the same hash value.
6694 As a result various functions (which were all internal
6695 use only) have changed to handle the new X509_STORE
6696 structure. This will break anything that messed round
6697 with X509_STORE internally.
6699 The functions X509_STORE_add_cert() now checks for an
6700 exact match, rather than just subject name.
6702 The X509_STORE API doesn't directly support the retrieval
6703 of multiple certificates matching a given criteria, however
6704 this can be worked round by performing a lookup first
6705 (which will fill the cache with candidate certificates)
6706 and then examining the cache for matches. This is probably
6707 the best we can do without throwing out X509_LOOKUP
6708 entirely (maybe later...).
6710 The X509_VERIFY_CTX structure has been enhanced considerably.
6712 All certificate lookup operations now go via a get_issuer()
6713 callback. Although this currently uses an X509_STORE it
6714 can be replaced by custom lookups. This is a simple way
6715 to bypass the X509_STORE hackery necessary to make this
6716 work and makes it possible to use more efficient techniques
6717 in future. A very simple version which uses a simple
6718 STACK for its trusted certificate store is also provided
6719 using X509_STORE_CTX_trusted_stack().
6721 The verify_cb() and verify() callbacks now have equivalents
6722 in the X509_STORE_CTX structure.
6724 X509_STORE_CTX also has a 'flags' field which can be used
6725 to customise the verify behaviour.
6728 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6729 excludes S/MIME capabilities.
6732 *) When a certificate request is read in keep a copy of the
6733 original encoding of the signed data and use it when outputing
6734 again. Signatures then use the original encoding rather than
6735 a decoded, encoded version which may cause problems if the
6736 request is improperly encoded.
6739 *) For consistency with other BIO_puts implementations, call
6740 buffer_write(b, ...) directly in buffer_puts instead of calling
6743 In BIO_puts, increment b->num_write as in BIO_write.
6744 [Peter.Sylvester@EdelWeb.fr]
6746 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6747 BN_zero, we may not return a BIGNUM with an array consisting of
6751 *) Avoid calling abort() from within the library when problems are
6752 detected, except if preprocessor symbols have been defined
6753 (such as REF_CHECK, BN_DEBUG etc.).
6756 *) New openssl application 'rsautl'. This utility can be
6757 used for low level RSA operations. DER public key
6758 BIO/fp routines also added.
6761 *) New Configure entry and patches for compiling on QNX 4.
6762 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6764 *) A demo state-machine implementation was sponsored by
6765 Nuron (http://www.nuron.com/) and is now available in
6766 demos/state_machine.
6769 *) New options added to the 'dgst' utility for signature
6770 generation and verification.
6773 *) Unrecognized PKCS#7 content types are now handled via a
6774 catch all ASN1_TYPE structure. This allows unsupported
6775 types to be stored as a "blob" and an application can
6776 encode and decode it manually.
6779 *) Fix various signed/unsigned issues to make a_strex.c
6781 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6783 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6784 length if passed a buffer. ASN1_INTEGER_to_BN failed
6785 if passed a NULL BN and its argument was negative.
6786 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6788 *) Modification to PKCS#7 encoding routines to output definite
6789 length encoding. Since currently the whole structures are in
6790 memory there's not real point in using indefinite length
6791 constructed encoding. However if OpenSSL is compiled with
6792 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6795 *) Added BIO_vprintf() and BIO_vsnprintf().
6798 *) Added more prefixes to parse for in the the strings written
6799 through a logging bio, to cover all the levels that are available
6800 through syslog. The prefixes are now:
6802 PANIC, EMERG, EMR => LOG_EMERG
6803 ALERT, ALR => LOG_ALERT
6804 CRIT, CRI => LOG_CRIT
6805 ERROR, ERR => LOG_ERR
6806 WARNING, WARN, WAR => LOG_WARNING
6807 NOTICE, NOTE, NOT => LOG_NOTICE
6808 INFO, INF => LOG_INFO
6809 DEBUG, DBG => LOG_DEBUG
6811 and as before, if none of those prefixes are present at the
6812 beginning of the string, LOG_ERR is chosen.
6814 On Win32, the LOG_* levels are mapped according to this:
6816 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6817 LOG_WARNING => EVENTLOG_WARNING_TYPE
6818 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6822 *) Made it possible to reconfigure with just the configuration
6823 argument "reconf" or "reconfigure". The command line arguments
6824 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6825 and are retrieved from there when reconfiguring.
6829 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6831 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6834 *) The obj_dat.pl script was messing up the sorting of object
6835 names. The reason was that it compared the quoted version
6836 of strings as a result "OCSP" > "OCSP Signing" because
6837 " > SPACE. Changed script to store unquoted versions of
6838 names and add quotes on output. It was also omitting some
6839 names from the lookup table if they were given a default
6840 value (that is if SN is missing it is given the same
6841 value as LN and vice versa), these are now added on the
6842 grounds that if an object has a name we should be able to
6843 look it up. Finally added warning output when duplicate
6844 short or long names are found.
6847 *) Changes needed for Tandem NSK.
6848 [Scott Uroff <scott@xypro.com>]
6850 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6851 RSA_padding_check_SSLv23(), special padding was never detected
6852 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6853 version rollback attacks was not effective.
6855 In s23_clnt.c, don't use special rollback-attack detection padding
6856 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6857 client; similarly, in s23_srvr.c, don't do the rollback check if
6858 SSL 2.0 is the only protocol enabled in the server.
6861 *) Make it possible to get hexdumps of unprintable data with 'openssl
6862 asn1parse'. By implication, the functions ASN1_parse_dump() and
6863 BIO_dump_indent() are added.
6866 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6867 these print out strings and name structures based on various
6868 flags including RFC2253 support and proper handling of
6869 multibyte characters. Added options to the 'x509' utility
6870 to allow the various flags to be set.
6873 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6874 Also change the functions X509_cmp_current_time() and
6875 X509_gmtime_adj() work with an ASN1_TIME structure,
6876 this will enable certificates using GeneralizedTime in validity
6877 dates to be checked.
6880 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6881 negative public key encodings) on by default,
6882 NO_NEG_PUBKEY_BUG can be set to disable it.
6885 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6886 content octets. An i2c_ASN1_OBJECT is unnecessary because
6887 the encoding can be trivially obtained from the structure.
6890 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6891 not read locks (CRYPTO_r_[un]lock).
6894 *) A first attempt at creating official support for shared
6895 libraries through configuration. I've kept it so the
6896 default is static libraries only, and the OpenSSL programs
6897 are always statically linked for now, but there are
6898 preparations for dynamic linking in place.
6899 This has been tested on Linux and Tru64.
6902 *) Randomness polling function for Win9x, as described in:
6903 Peter Gutmann, Software Generation of Practically Strong
6907 *) Fix so PRNG is seeded in req if using an already existing
6911 *) New options to smime application. -inform and -outform
6912 allow alternative formats for the S/MIME message including
6913 PEM and DER. The -content option allows the content to be
6914 specified separately. This should allow things like Netscape
6915 form signing output easier to verify.
6918 *) Fix the ASN1 encoding of tags using the 'long form'.
6921 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6922 STRING types. These convert content octets to and from the
6923 underlying type. The actual tag and length octets are
6924 already assumed to have been read in and checked. These
6925 are needed because all other string types have virtually
6926 identical handling apart from the tag. By having versions
6927 of the ASN1 functions that just operate on content octets
6928 IMPLICIT tagging can be handled properly. It also allows
6929 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6930 and ASN1_INTEGER are identical apart from the tag.
6933 *) Change the handling of OID objects as follows:
6935 - New object identifiers are inserted in objects.txt, following
6936 the syntax given in objects.README.
6937 - objects.pl is used to process obj_mac.num and create a new
6939 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6942 This is currently kind of a hack, and the perl code in objects.pl
6943 isn't very elegant, but it works as I intended. The simplest way
6944 to check that it worked correctly is to look in obj_dat.h and
6945 check the array nid_objs and make sure the objects haven't moved
6946 around (this is important!). Additions are OK, as well as
6947 consistent name changes.
6950 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6953 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6954 The given file adds to whatever has already been seeded into the
6955 random pool through the RANDFILE configuration file option or
6956 environment variable, or the default random state file.
6959 *) mkstack.pl now sorts each macro group into lexical order.
6960 Previously the output order depended on the order the files
6961 appeared in the directory, resulting in needless rewriting
6965 *) Patches to make OpenSSL compile under Win32 again. Mostly
6966 work arounds for the VC++ problem that it treats func() as
6967 func(void). Also stripped out the parts of mkdef.pl that
6968 added extra typesafe functions: these no longer exist.
6971 *) Reorganisation of the stack code. The macros are now all
6972 collected in safestack.h . Each macro is defined in terms of
6973 a "stack macro" of the form SKM_<name>(type, a, b). The
6974 DEBUG_SAFESTACK is now handled in terms of function casts,
6975 this has the advantage of retaining type safety without the
6976 use of additional functions. If DEBUG_SAFESTACK is not defined
6977 then the non typesafe macros are used instead. Also modified the
6978 mkstack.pl script to handle the new form. Needs testing to see
6979 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6980 the default if no major problems. Similar behaviour for ASN1_SET_OF
6981 and PKCS12_STACK_OF.
6984 *) When some versions of IIS use the 'NET' form of private key the
6985 key derivation algorithm is different. Normally MD5(password) is
6986 used as a 128 bit RC4 key. In the modified case
6987 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6988 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6989 as the old Netscape_RSA functions except they have an additional
6990 'sgckey' parameter which uses the modified algorithm. Also added
6991 an -sgckey command line option to the rsa utility. Thanks to
6992 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6993 algorithm to openssl-dev.
6996 *) The evp_local.h macros were using 'c.##kname' which resulted in
6997 invalid expansion on some systems (SCO 5.0.5 for example).
6998 Corrected to 'c.kname'.
6999 [Phillip Porch <root@theporch.com>]
7001 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7002 a STACK of email addresses from a certificate or request, these look
7003 in the subject name and the subject alternative name extensions and
7004 omit any duplicate addresses.
7007 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7008 This makes DSA verification about 2 % faster.
7011 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7012 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7013 plus overhead for 1024 bit moduli).
7014 This makes exponentiations about 0.5 % faster for 1024 bit
7015 exponents (as measured by "openssl speed rsa2048").
7018 *) Rename memory handling macros to avoid conflicts with other
7020 Malloc => OPENSSL_malloc
7021 Malloc_locked => OPENSSL_malloc_locked
7022 Realloc => OPENSSL_realloc
7023 Free => OPENSSL_free
7026 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7027 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7030 *) CygWin32 support.
7031 [John Jarvie <jjarvie@newsguy.com>]
7033 *) The type-safe stack code has been rejigged. It is now only compiled
7034 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7035 by default all type-specific stack functions are "#define"d back to
7036 standard stack functions. This results in more streamlined output
7037 but retains the type-safety checking possibilities of the original
7041 *) The STACK code has been cleaned up, and certain type declarations
7042 that didn't make a lot of sense have been brought in line. This has
7043 also involved a cleanup of sorts in safestack.h to more correctly
7044 map type-safe stack functions onto their plain stack counterparts.
7045 This work has also resulted in a variety of "const"ifications of
7046 lots of the code, especially "_cmp" operations which should normally
7047 be prototyped with "const" parameters anyway.
7050 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7051 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7052 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7053 where all of 'md' is used each time the PRNG is used, but 'state'
7054 is used only indexed by a cyclic counter. As entropy may not be
7055 well distributed from the beginning, 'md' is important as a
7056 chaining variable. However, the output function chains only half
7057 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7058 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7059 in all of 'state' being rewritten, with the new values depending
7060 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7063 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7064 the handshake is continued after ssl_verify_cert_chain();
7065 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7066 can lead to 'unexplainable' connection aborts later.
7067 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7069 *) Major EVP API cipher revision.
7070 Add hooks for extra EVP features. This allows various cipher
7071 parameters to be set in the EVP interface. Support added for variable
7072 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7073 setting of RC2 and RC5 parameters.
7075 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7078 Remove lots of duplicated code from the EVP library. For example *every*
7079 cipher init() function handles the 'iv' in the same way according to the
7080 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7081 for CFB and OFB modes they zero ctx->num.
7083 New functionality allows removal of S/MIME code RC2 hack.
7085 Most of the routines have the same form and so can be declared in terms
7088 By shifting this to the top level EVP_CipherInit() it can be removed from
7089 all individual ciphers. If the cipher wants to handle IVs or keys
7090 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7093 Change lots of functions like EVP_EncryptUpdate() to now return a
7094 value: although software versions of the algorithms cannot fail
7095 any installed hardware versions can.
7098 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7099 this option is set, tolerate broken clients that send the negotiated
7100 protocol version number instead of the requested protocol version
7104 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7105 i.e. non-zero for export ciphersuites, zero otherwise.
7106 Previous versions had this flag inverted, inconsistent with
7107 rsa_tmp_cb (..._TMP_RSA_CB).
7108 [Bodo Moeller; problem reported by Amit Chopra]
7110 *) Add missing DSA library text string. Work around for some IIS
7111 key files with invalid SEQUENCE encoding.
7114 *) Add a document (doc/standards.txt) that list all kinds of standards
7115 and so on that are implemented in OpenSSL.
7118 *) Enhance c_rehash script. Old version would mishandle certificates
7119 with the same subject name hash and wouldn't handle CRLs at all.
7120 Added -fingerprint option to crl utility, to support new c_rehash
7124 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7127 *) Fix for SSL server purpose checking. Server checking was
7128 rejecting certificates which had extended key usage present
7129 but no ssl client purpose.
7130 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7132 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7133 is a little unclear about how a blank password is handled.
7134 Since the password in encoded as a BMPString with terminating
7135 double NULL a zero length password would end up as just the
7136 double NULL. However no password at all is different and is
7137 handled differently in the PKCS#12 key generation code. NS
7138 treats a blank password as zero length. MSIE treats it as no
7139 password on export: but it will try both on import. We now do
7140 the same: PKCS12_parse() tries zero length and no password if
7141 the password is set to "" or NULL (NULL is now a valid password:
7142 it wasn't before) as does the pkcs12 application.
7145 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7146 perror when PEM_read_bio_X509_REQ fails, the error message must
7147 be obtained from the error queue.
7150 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7151 it in ERR_remove_state if appropriate, and change ERR_get_state
7152 accordingly to avoid race conditions (this is necessary because
7153 thread_hash is no longer constant once set).
7156 *) Bugfix for linux-elf makefile.one.
7159 *) RSA_get_default_method() will now cause a default
7160 RSA_METHOD to be chosen if one doesn't exist already.
7161 Previously this was only set during a call to RSA_new()
7162 or RSA_new_method(NULL) meaning it was possible for
7163 RSA_get_default_method() to return NULL.
7166 *) Added native name translation to the existing DSO code
7167 that will convert (if the flag to do so is set) filenames
7168 that are sufficiently small and have no path information
7169 into a canonical native form. Eg. "blah" converted to
7170 "libblah.so" or "blah.dll" etc.
7173 *) New function ERR_error_string_n(e, buf, len) which is like
7174 ERR_error_string(e, buf), but writes at most 'len' bytes
7175 including the 0 terminator. For ERR_error_string_n, 'buf'
7177 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7179 *) CONF library reworked to become more general. A new CONF
7180 configuration file reader "class" is implemented as well as a
7181 new functions (NCONF_*, for "New CONF") to handle it. The now
7182 old CONF_* functions are still there, but are reimplemented to
7183 work in terms of the new functions. Also, a set of functions
7184 to handle the internal storage of the configuration data is
7185 provided to make it easier to write new configuration file
7186 reader "classes" (I can definitely see something reading a
7187 configuration file in XML format, for example), called _CONF_*,
7188 or "the configuration storage API"...
7190 The new configuration file reading functions are:
7192 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7193 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7195 NCONF_default, NCONF_WIN32
7197 NCONF_dump_fp, NCONF_dump_bio
7199 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7200 NCONF_new creates a new CONF object. This works in the same way
7201 as other interfaces in OpenSSL, like the BIO interface.
7202 NCONF_dump_* dump the internal storage of the configuration file,
7203 which is useful for debugging. All other functions take the same
7204 arguments as the old CONF_* functions wth the exception of the
7205 first that must be a `CONF *' instead of a `LHASH *'.
7207 To make it easer to use the new classes with the old CONF_* functions,
7208 the function CONF_set_default_method is provided.
7211 *) Add '-tls1' option to 'openssl ciphers', which was already
7212 mentioned in the documentation but had not been implemented.
7213 (This option is not yet really useful because even the additional
7214 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7217 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7218 OpenSSL-based applications) load shared libraries and bind to
7219 them in a portable way.
7220 [Geoff Thorpe, with contributions from Richard Levitte]
7222 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7224 *) Make sure _lrotl and _lrotr are only used with MSVC.
7226 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7227 (the default implementation of RAND_status).
7229 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7230 to '-clrext' (= clear extensions), as intended and documented.
7231 [Bodo Moeller; inconsistency pointed out by Michael Attili
7234 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7235 was larger than the MD block size.
7236 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7238 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7239 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7240 using the passed key: if the passed key was a private key the result
7241 of X509_print(), for example, would be to print out all the private key
7245 *) des_quad_cksum() byte order bug fix.
7246 [Ulf Möller, using the problem description in krb4-0.9.7, where
7247 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7249 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7251 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7253 *) For easily testing in shell scripts whether some command
7254 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7255 returns with exit code 0 iff no command of the given name is available.
7256 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7257 the output goes to stdout and nothing is printed to stderr.
7258 Additional arguments are always ignored.
7260 Since for each cipher there is a command of the same name,
7261 the 'no-cipher' compilation switches can be tested this way.
7263 ('openssl no-XXX' is not able to detect pseudo-commands such
7264 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7267 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7270 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7271 is set; it will be thrown away anyway because each handshake creates
7273 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7274 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7275 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7276 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7279 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7280 'Q' and 'R' lose their special meanings (quit/renegotiate).
7281 This is part of what -quiet does; unlike -quiet, -ign_eof
7282 does not suppress any output.
7285 *) Add compatibility options to the purpose and trust code. The
7286 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7287 accepts a certificate or CA, this was the previous behaviour,
7288 with all the associated security issues.
7290 X509_TRUST_COMPAT is the old trust behaviour: only and
7291 automatically trust self signed roots in certificate store. A
7292 new trust setting X509_TRUST_DEFAULT is used to specify that
7293 a purpose has no associated trust setting and it should instead
7294 use the value in the default purpose.
7297 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7298 and fix a memory leak.
7301 *) In util/mkerr.pl (which implements 'make errors'), preserve
7302 reason strings from the previous version of the .c file, as
7303 the default to have only downcase letters (and digits) in
7304 automatically generated reasons codes is not always appropriate.
7307 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7308 using strerror. Previously, ERR_reason_error_string() returned
7309 library names as reason strings for SYSerr; but SYSerr is a special
7310 case where small numbers are errno values, not library numbers.
7313 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7314 converts DSA parameters into DH parameters. (When creating parameters,
7315 DSA_generate_parameters is used.)
7318 *) Include 'length' (recommended exponent length) in C code generated
7319 by 'openssl dhparam -C'.
7322 *) The second argument to set_label in perlasm was already being used
7323 so couldn't be used as a "file scope" flag. Moved to third argument
7327 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7328 instead of RAND_bytes for encryption IVs and salts.
7331 *) Include RAND_status() into RAND_METHOD instead of implementing
7332 it only for md_rand.c Otherwise replacing the PRNG by calling
7333 RAND_set_rand_method would be impossible.
7336 *) Don't let DSA_generate_key() enter an infinite loop if the random
7337 number generation fails.
7340 *) New 'rand' application for creating pseudo-random output.
7343 *) Added configuration support for Linux/IA64
7344 [Rolf Haberrecker <rolf@suse.de>]
7346 *) Assembler module support for Mingw32.
7349 *) Shared library support for HPUX (in shlib/).
7350 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7352 *) Shared library support for Solaris gcc.
7353 [Lutz Behnke <behnke@trustcenter.de>]
7355 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7357 *) PKCS7_encrypt() was adding text MIME headers twice because they
7358 were added manually and by SMIME_crlf_copy().
7361 *) In bntest.c don't call BN_rand with zero bits argument.
7362 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7364 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7365 case was implemented. This caused BN_div_recp() to fail occasionally.
7368 *) Add an optional second argument to the set_label() in the perl
7369 assembly language builder. If this argument exists and is set
7370 to 1 it signals that the assembler should use a symbol whose
7371 scope is the entire file, not just the current function. This
7372 is needed with MASM which uses the format label:: for this scope.
7373 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7375 *) Change the ASN1 types so they are typedefs by default. Before
7376 almost all types were #define'd to ASN1_STRING which was causing
7377 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7381 *) Change names of new functions to the new get1/get0 naming
7382 convention: After 'get1', the caller owns a reference count
7383 and has to call ..._free; 'get0' returns a pointer to some
7384 data structure without incrementing reference counters.
7385 (Some of the existing 'get' functions increment a reference
7386 counter, some don't.)
7387 Similarly, 'set1' and 'add1' functions increase reference
7388 counters or duplicate objects.
7391 *) Allow for the possibility of temp RSA key generation failure:
7392 the code used to assume it always worked and crashed on failure.
7395 *) Fix potential buffer overrun problem in BIO_printf().
7396 [Ulf Möller, using public domain code by Patrick Powell; problem
7397 pointed out by David Sacerdote <das33@cornell.edu>]
7399 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7400 RAND_egd() and RAND_status(). In the command line application,
7401 the EGD socket can be specified like a seed file using RANDFILE
7405 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7406 Some CAs (e.g. Verisign) distribute certificates in this form.
7409 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7410 list to exclude them. This means that no special compilation option
7411 is needed to use anonymous DH: it just needs to be included in the
7415 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7416 EVP_MD_type. The old functionality is available in a new macro called
7417 EVP_MD_md(). Change code that uses it and update docs.
7420 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7421 where the 'void *' argument is replaced by a function pointer argument.
7422 Previously 'void *' was abused to point to functions, which works on
7423 many platforms, but is not correct. As these functions are usually
7424 called by macros defined in OpenSSL header files, most source code
7425 should work without changes.
7428 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7429 sections with information on -D... compiler switches used for
7430 compiling the library so that applications can see them. To enable
7431 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7432 must be defined. E.g.,
7433 #define OPENSSL_ALGORITHM_DEFINES
7434 #include <openssl/opensslconf.h>
7435 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7436 [Richard Levitte, Ulf and Bodo Möller]
7438 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7442 *) Change the 'other' type in certificate aux info to a STACK_OF
7443 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7444 the required ASN1 format: arbitrary types determined by an OID.
7447 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7448 argument to 'req'. This is not because the function is newer or
7449 better than others it just uses the work 'NEW' in the certificate
7450 request header lines. Some software needs this.
7453 *) Reorganise password command line arguments: now passwords can be
7454 obtained from various sources. Delete the PEM_cb function and make
7455 it the default behaviour: i.e. if the callback is NULL and the
7456 usrdata argument is not NULL interpret it as a null terminated pass
7457 phrase. If usrdata and the callback are NULL then the pass phrase
7458 is prompted for as usual.
7461 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7462 the support is automatically enabled. The resulting binaries will
7463 autodetect the card and use it if present.
7464 [Ben Laurie and Compaq Inc.]
7466 *) Work around for Netscape hang bug. This sends certificate request
7467 and server done in one record. Since this is perfectly legal in the
7468 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7469 the bugs/SSLv3 entry for more info.
7472 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7475 *) Add -rand argument to smime and pkcs12 applications and read/write
7479 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7482 *) Add command line password options to the remaining applications.
7485 *) Bug fix for BN_div_recp() for numerators with an even number of
7489 *) More tests in bntest.c, and changed test_bn output.
7492 *) ./config recognizes MacOS X now.
7495 *) Bug fix for BN_div() when the first words of num and divsor are
7496 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7499 *) Add support for various broken PKCS#8 formats, and command line
7500 options to produce them.
7503 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7504 get temporary BIGNUMs from a BN_CTX.
7507 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7511 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7512 include a #define from the old name to the new. The original intent
7513 was that statically linked binaries could for example just call
7514 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7515 link with digests. This never worked becayse SSLeay_add_all_digests()
7516 and SSLeay_add_all_ciphers() were in the same source file so calling
7517 one would link with the other. They are now in separate source files.
7520 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7523 *) Use a less unusual form of the Miller-Rabin primality test (it used
7524 a binary algorithm for exponentiation integrated into the Miller-Rabin
7525 loop, our standard modexp algorithms are faster).
7528 *) Support for the EBCDIC character set completed.
7529 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7531 *) Source code cleanups: use const where appropriate, eliminate casts,
7532 use void * instead of char * in lhash.
7535 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7536 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7537 this the server could overwrite ephemeral keys that the client
7541 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7542 using 50 iterations of the Rabin-Miller test.
7544 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7545 iterations of the Rabin-Miller test as required by the appendix
7546 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7547 As BN_is_prime_fasttest includes trial division, DSA parameter
7548 generation becomes much faster.
7550 This implies a change for the callback functions in DSA_is_prime
7551 and DSA_generate_parameters: The callback function is called once
7552 for each positive witness in the Rabin-Miller test, not just
7553 occasionally in the inner loop; and the parameters to the
7554 callback function now provide an iteration count for the outer
7555 loop rather than for the current invocation of the inner loop.
7556 DSA_generate_parameters additionally can call the callback
7557 function with an 'iteration count' of -1, meaning that a
7558 candidate has passed the trial division test (when q is generated
7559 from an application-provided seed, trial division is skipped).
7562 *) New function BN_is_prime_fasttest that optionally does trial
7563 division before starting the Rabin-Miller test and has
7564 an additional BN_CTX * argument (whereas BN_is_prime always
7565 has to allocate at least one BN_CTX).
7566 'callback(1, -1, cb_arg)' is called when a number has passed the
7567 trial division stage.
7570 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7574 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7577 *) New function BN_pseudo_rand().
7580 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7581 bignum version of BN_from_montgomery() with the working code from
7582 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7586 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7587 made it impossible to use the same SSL_SESSION data structure in
7588 SSL2 clients in multiple threads.
7591 *) The return value of RAND_load_file() no longer counts bytes obtained
7592 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7593 to seed the PRNG (previously an explicit byte count was required).
7594 [Ulf Möller, Bodo Möller]
7596 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7597 used (char *) instead of (void *) and had casts all over the place.
7600 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7603 *) Retain source code compatibility for BN_prime_checks macro:
7604 BN_is_prime(..., BN_prime_checks, ...) now uses
7605 BN_prime_checks_for_size to determine the appropriate number of
7606 Rabin-Miller iterations.
7609 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7610 DH_CHECK_P_NOT_SAFE_PRIME.
7611 (Check if this is true? OpenPGP calls them "strong".)
7614 *) Merge the functionality of "dh" and "gendh" programs into a new program
7615 "dhparam". The old programs are retained for now but will handle DH keys
7616 (instead of parameters) in future.
7619 *) Make the ciphers, s_server and s_client programs check the return values
7620 when a new cipher list is set.
7623 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7624 ciphers. Before when the 56bit ciphers were enabled the sorting was
7627 The syntax for the cipher sorting has been extended to support sorting by
7628 cipher-strength (using the strength_bits hard coded in the tables).
7629 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7631 Fix a bug in the cipher-command parser: when supplying a cipher command
7632 string with an "undefined" symbol (neither command nor alphanumeric
7633 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7634 an error is flagged.
7636 Due to the strength-sorting extension, the code of the
7637 ssl_create_cipher_list() function was completely rearranged. I hope that
7638 the readability was also increased :-)
7639 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7641 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7642 for the first serial number and places 2 in the serial number file. This
7643 avoids problems when the root CA is created with serial number zero and
7644 the first user certificate has the same issuer name and serial number
7648 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7649 the new code. Add documentation for this stuff.
7652 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7653 X509_*() to X509at_*() on the grounds that they don't handle X509
7654 structures and behave in an analagous way to the X509v3 functions:
7655 they shouldn't be called directly but wrapper functions should be used
7658 So we also now have some wrapper functions that call the X509at functions
7659 when passed certificate requests. (TO DO: similar things can be done with
7660 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7661 things. Some of these need some d2i or i2d and print functionality
7662 because they handle more complex structures.)
7665 *) Add missing #ifndefs that caused missing symbols when building libssl
7666 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7667 NO_RSA in ssl/s2*.c.
7668 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7670 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7671 has a return value which indicates the quality of the random data
7672 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7673 error queue. New function RAND_pseudo_bytes() generates output that is
7674 guaranteed to be unique but not unpredictable. RAND_add is like
7675 RAND_seed, but takes an extra argument for an entropy estimate
7676 (RAND_seed always assumes full entropy).
7679 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7680 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7681 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7682 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7683 false-positive rate of at most 2^-80 for random input.
7686 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7689 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7690 in the 0.9.5 release), this returns the chain
7691 from an X509_CTX structure with a dup of the stack and all
7692 the X509 reference counts upped: so the stack will exist
7693 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7696 Also make SSL_SESSION_print() print out the verify return
7700 *) Add manpage for the pkcs12 command. Also change the default
7701 behaviour so MAC iteration counts are used unless the new
7702 -nomaciter option is used. This improves file security and
7703 only older versions of MSIE (4.0 for example) need it.
7706 *) Honor the no-xxx Configure options when creating .DEF files.
7709 *) Add PKCS#10 attributes to field table: challengePassword,
7710 unstructuredName and unstructuredAddress. These are taken from
7711 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7712 international characters are used.
7714 More changes to X509_ATTRIBUTE code: allow the setting of types
7715 based on strings. Remove the 'loc' parameter when adding
7716 attributes because these will be a SET OF encoding which is sorted
7720 *) Initial changes to the 'req' utility to allow request generation
7721 automation. This will allow an application to just generate a template
7722 file containing all the field values and have req construct the
7725 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7726 used all over the place including certificate requests and PKCS#7
7727 structures. They are currently handled manually where necessary with
7728 some primitive wrappers for PKCS#7. The new functions behave in a
7729 manner analogous to the X509 extension functions: they allow
7730 attributes to be looked up by NID and added.
7732 Later something similar to the X509V3 code would be desirable to
7733 automatically handle the encoding, decoding and printing of the
7734 more complex types. The string types like challengePassword can
7735 be handled by the string table functions.
7737 Also modified the multi byte string table handling. Now there is
7738 a 'global mask' which masks out certain types. The table itself
7739 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7740 is useful when for example there is only one permissible type
7741 (as in countryName) and using the mask might result in no valid
7745 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7746 SSL_get_peer_finished to allow applications to obtain the latest
7747 Finished messages sent to the peer or expected from the peer,
7748 respectively. (SSL_get_peer_finished is usually the Finished message
7749 actually received from the peer, otherwise the protocol will be aborted.)
7751 As the Finished message are message digests of the complete handshake
7752 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7753 be used for external authentication procedures when the authentication
7754 provided by SSL/TLS is not desired or is not enough.
7757 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7758 the host supports BWX extension and if Compaq C is present on the
7759 $PATH. Just exploiting of the BWX extension results in 20-30%
7760 performance kick for some algorithms, e.g. DES and RC4 to mention
7761 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7765 *) Add support for MS "fast SGC". This is arguably a violation of the
7766 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7767 weak crypto and after checking the certificate is SGC a second one
7768 with strong crypto. MS SGC stops the first handshake after receiving
7769 the server certificate message and sends a second client hello. Since
7770 a server will typically do all the time consuming operations before
7771 expecting any further messages from the client (server key exchange
7772 is the most expensive) there is little difference between the two.
7774 To get OpenSSL to support MS SGC we have to permit a second client
7775 hello message after we have sent server done. In addition we have to
7776 reset the MAC if we do get this second client hello.
7779 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7780 if a DER encoded private key is RSA or DSA traditional format. Changed
7781 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7782 format DER encoded private key. Newer code should use PKCS#8 format which
7783 has the key type encoded in the ASN1 structure. Added DER private key
7784 support to pkcs8 application.
7787 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7788 ciphersuites has been selected (as required by the SSL 3/TLS 1
7789 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7790 is set, we interpret this as a request to violate the specification
7791 (the worst that can happen is a handshake failure, and 'correct'
7792 behaviour would result in a handshake failure anyway).
7795 *) In SSL_CTX_add_session, take into account that there might be multiple
7796 SSL_SESSION structures with the same session ID (e.g. when two threads
7797 concurrently obtain them from an external cache).
7798 The internal cache can handle only one SSL_SESSION with a given ID,
7799 so if there's a conflict, we now throw out the old one to achieve
7803 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7804 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7805 some routines that use cipher OIDs: some ciphers do not have OIDs
7806 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7810 *) Simplify the trust setting structure and code. Now we just have
7811 two sequences of OIDs for trusted and rejected settings. These will
7812 typically have values the same as the extended key usage extension
7813 and any application specific purposes.
7815 The trust checking code now has a default behaviour: it will just
7816 check for an object with the same NID as the passed id. Functions can
7817 be provided to override either the default behaviour or the behaviour
7818 for a given id. SSL client, server and email already have functions
7819 in place for compatibility: they check the NID and also return "trusted"
7820 if the certificate is self signed.
7823 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7824 traditional format into an EVP_PKEY structure.
7827 *) Add a password callback function PEM_cb() which either prompts for
7828 a password if usr_data is NULL or otherwise assumes it is a null
7829 terminated password. Allow passwords to be passed on command line
7830 environment or config files in a few more utilities.
7833 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7834 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7835 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7836 Update documentation.
7839 *) Support for ASN1 "NULL" type. This could be handled before by using
7840 ASN1_TYPE but there wasn't any function that would try to read a NULL
7841 and produce an error if it couldn't. For compatibility we also have
7842 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7843 don't allocate anything because they don't need to.
7846 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7848 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7850 *) Rebuild of the memory allocation routines used by OpenSSL code and
7851 possibly others as well. The purpose is to make an interface that
7852 provide hooks so anyone can build a separate set of allocation and
7853 deallocation routines to be used by OpenSSL, for example memory
7854 pool implementations, or something else, which was previously hard
7855 since Malloc(), Realloc() and Free() were defined as macros having
7856 the values malloc, realloc and free, respectively (except for Win32
7857 compilations). The same is provided for memory debugging code.
7858 OpenSSL already comes with functionality to find memory leaks, but
7859 this gives people a chance to debug other memory problems.
7861 With these changes, a new set of functions and macros have appeared:
7863 CRYPTO_set_mem_debug_functions() [F]
7864 CRYPTO_get_mem_debug_functions() [F]
7865 CRYPTO_dbg_set_options() [F]
7866 CRYPTO_dbg_get_options() [F]
7867 CRYPTO_malloc_debug_init() [M]
7869 The memory debug functions are NULL by default, unless the library
7870 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7871 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7872 gives the standard debugging functions that come with OpenSSL) or
7873 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7874 provided by the library user) must be used. When the standard
7875 debugging functions are used, CRYPTO_dbg_set_options can be used to
7876 request additional information:
7877 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7878 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7880 Also, things like CRYPTO_set_mem_functions will always give the
7881 expected result (the new set of functions is used for allocation
7882 and deallocation) at all times, regardless of platform and compiler
7885 To finish it up, some functions that were never use in any other
7886 way than through macros have a new API and new semantic:
7889 CRYPTO_dbg_realloc()
7892 All macros of value have retained their old syntax.
7893 [Richard Levitte and Bodo Moeller]
7895 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7896 ordering of SMIMECapabilities wasn't in "strength order" and there
7897 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7901 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7902 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7903 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7905 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7906 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7907 functionality to handle multipart/signed properly) and a utility
7908 called 'smime' to call all this stuff. This is based on code I
7909 originally wrote for Celo who have kindly allowed it to be
7910 included in OpenSSL.
7913 *) Add variants des_set_key_checked and des_set_key_unchecked of
7914 des_set_key (aka des_key_sched). Global variable des_check_key
7915 decides which of these is called by des_set_key; this way
7916 des_check_key behaves as it always did, but applications and
7917 the library itself, which was buggy for des_check_key == 1,
7918 have a cleaner way to pick the version they need.
7921 *) New function PKCS12_newpass() which changes the password of a
7925 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7926 dynamic mix. In both cases the ids can be used as an index into the
7927 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7928 functions so they accept a list of the field values and the
7929 application doesn't need to directly manipulate the X509_TRUST
7933 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7937 *) Modify the way the V3 extension code looks up extensions. This now
7938 works in a similar way to the object code: we have some "standard"
7939 extensions in a static table which is searched with OBJ_bsearch()
7940 and the application can add dynamic ones if needed. The file
7941 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7942 updated whenever a new extension is added to the core code and kept
7943 in ext_nid order. There is a simple program 'tabtest.c' which checks
7944 this. New extensions are not added too often so this file can readily
7945 be maintained manually.
7947 There are two big advantages in doing things this way. The extensions
7948 can be looked up immediately and no longer need to be "added" using
7949 X509V3_add_standard_extensions(): this function now does nothing.
7950 [Side note: I get *lots* of email saying the extension code doesn't
7951 work because people forget to call this function]
7952 Also no dynamic allocation is done unless new extensions are added:
7953 so if we don't add custom extensions there is no need to call
7954 X509V3_EXT_cleanup().
7957 *) Modify enc utility's salting as follows: make salting the default. Add a
7958 magic header, so unsalted files fail gracefully instead of just decrypting
7959 to garbage. This is because not salting is a big security hole, so people
7960 should be discouraged from doing it.
7963 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7964 digest to be passed on the command line but it only used this
7965 parameter when signing a certificate. Modified so all relevant
7966 operations are affected by the digest parameter including the
7967 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7968 DSA key was used because it didn't fix the digest.
7971 *) Initial certificate chain verify code. Currently tests the untrusted
7972 certificates for consistency with the verify purpose (which is set
7973 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7975 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7976 this is because it will reject chains with invalid extensions whereas
7977 every previous version of OpenSSL and SSLeay made no checks at all.
7979 Trust code: checks the root CA for the relevant trust settings. Trust
7980 settings have an initial value consistent with the verify purpose: e.g.
7981 if the verify purpose is for SSL client use it expects the CA to be
7982 trusted for SSL client use. However the default value can be changed to
7983 permit custom trust settings: one example of this would be to only trust
7984 certificates from a specific "secure" set of CAs.
7986 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7987 which should be used for version portability: especially since the
7988 verify structure is likely to change more often now.
7990 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7991 to set them. If not set then assume SSL clients will verify SSL servers
7994 Two new options to the verify program: -untrusted allows a set of
7995 untrusted certificates to be passed in and -purpose which sets the
7996 intended purpose of the certificate. If a purpose is set then the
7997 new chain verify code is used to check extension consistency.
8000 *) Support for the authority information access extension.
8003 *) Modify RSA and DSA PEM read routines to transparently handle
8004 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8005 public keys in a format compatible with certificate
8006 SubjectPublicKeyInfo structures. Unfortunately there were already
8007 functions called *_PublicKey_* which used various odd formats so
8008 these are retained for compatibility: however the DSA variants were
8009 never in a public release so they have been deleted. Changed dsa/rsa
8010 utilities to handle the new format: note no releases ever handled public
8011 keys so we should be OK.
8013 The primary motivation for this change is to avoid the same fiasco
8014 that dogs private keys: there are several incompatible private key
8015 formats some of which are standard and some OpenSSL specific and
8016 require various evil hacks to allow partial transparent handling and
8017 even then it doesn't work with DER formats. Given the option anything
8018 other than PKCS#8 should be dumped: but the other formats have to
8019 stay in the name of compatibility.
8021 With public keys and the benefit of hindsight one standard format
8022 is used which works with EVP_PKEY, RSA or DSA structures: though
8023 it clearly returns an error if you try to read the wrong kind of key.
8025 Added a -pubkey option to the 'x509' utility to output the public key.
8026 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8027 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8028 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8029 that do the same as the EVP_PKEY_assign_*() except they up the
8030 reference count of the added key (they don't "swallow" the
8034 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8035 CRLs would fail if the file contained no certificates or no CRLs:
8036 added a new function to read in both types and return the number
8037 read: this means that if none are read it will be an error. The
8038 DER versions of the certificate and CRL reader would always fail
8039 because it isn't possible to mix certificates and CRLs in DER format
8040 without choking one or the other routine. Changed this to just read
8041 a certificate: this is the best we can do. Also modified the code
8042 in apps/verify.c to take notice of return codes: it was previously
8043 attempting to read in certificates from NULL pointers and ignoring
8044 any errors: this is one reason why the cert and CRL reader seemed
8045 to work. It doesn't check return codes from the default certificate
8046 routines: these may well fail if the certificates aren't installed.
8049 *) Code to support otherName option in GeneralName.
8052 *) First update to verify code. Change the verify utility
8053 so it warns if it is passed a self signed certificate:
8054 for consistency with the normal behaviour. X509_verify
8055 has been modified to it will now verify a self signed
8056 certificate if *exactly* the same certificate appears
8057 in the store: it was previously impossible to trust a
8058 single self signed certificate. This means that:
8059 openssl verify ss.pem
8060 now gives a warning about a self signed certificate but
8061 openssl verify -CAfile ss.pem ss.pem
8065 *) For servers, store verify_result in SSL_SESSION data structure
8066 (and add it to external session representation).
8067 This is needed when client certificate verifications fails,
8068 but an application-provided verification callback (set by
8069 SSL_CTX_set_cert_verify_callback) allows accepting the session
8070 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8071 but returns 1): When the session is reused, we have to set
8072 ssl->verify_result to the appropriate error code to avoid
8074 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8076 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8077 case in PKCS7_dataInit() where the signed PKCS7 structure
8078 didn't contain any existing data because it was being created.
8079 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8081 *) Add a salt to the key derivation routines in enc.c. This
8082 forms the first 8 bytes of the encrypted file. Also add a
8083 -S option to allow a salt to be input on the command line.
8086 *) New function X509_cmp(). Oddly enough there wasn't a function
8087 to compare two certificates. We do this by working out the SHA1
8088 hash and comparing that. X509_cmp() will be needed by the trust
8092 *) SSL_get1_session() is like SSL_get_session(), but increments
8093 the reference count in the SSL_SESSION returned.
8094 [Geoff Thorpe <geoff@eu.c2.net>]
8096 *) Fix for 'req': it was adding a null to request attributes.
8097 Also change the X509_LOOKUP and X509_INFO code to handle
8098 certificate auxiliary information.
8101 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8105 *) Add the possibility to add extra information to the memory leak
8106 detecting output, to form tracebacks, showing from where each
8107 allocation was originated: CRYPTO_push_info("constant string") adds
8108 the string plus current file name and line number to a per-thread
8109 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8110 is like calling CYRPTO_pop_info() until the stack is empty.
8111 Also updated memory leak detection code to be multi-thread-safe.
8114 *) Add options -text and -noout to pkcs7 utility and delete the
8115 encryption options which never did anything. Update docs.
8118 *) Add options to some of the utilities to allow the pass phrase
8119 to be included on either the command line (not recommended on
8120 OSes like Unix) or read from the environment. Update the
8121 manpages and fix a few bugs.
8124 *) Add a few manpages for some of the openssl commands.
8127 *) Fix the -revoke option in ca. It was freeing up memory twice,
8128 leaking and not finding already revoked certificates.
8131 *) Extensive changes to support certificate auxiliary information.
8132 This involves the use of X509_CERT_AUX structure and X509_AUX
8133 functions. An X509_AUX function such as PEM_read_X509_AUX()
8134 can still read in a certificate file in the usual way but it
8135 will also read in any additional "auxiliary information". By
8136 doing things this way a fair degree of compatibility can be
8137 retained: existing certificates can have this information added
8138 using the new 'x509' options.
8140 Current auxiliary information includes an "alias" and some trust
8141 settings. The trust settings will ultimately be used in enhanced
8142 certificate chain verification routines: currently a certificate
8143 can only be trusted if it is self signed and then it is trusted
8147 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8148 The problem was that one of the replacement routines had not been working
8149 since SSLeay releases. For now the offending routine has been replaced
8150 with non-optimised assembler. Even so, this now gives around 95%
8151 performance improvement for 1024 bit RSA signs.
8154 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8155 handling. Most clients have the effective key size in bits equal to
8156 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8157 A few however don't do this and instead use the size of the decrypted key
8158 to determine the RC2 key length and the AlgorithmIdentifier to determine
8159 the effective key length. In this case the effective key length can still
8160 be 40 bits but the key length can be 168 bits for example. This is fixed
8161 by manually forcing an RC2 key into the EVP_PKEY structure because the
8162 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8163 the key length and effective key length are equal.
8166 *) Add a bunch of functions that should simplify the creation of
8167 X509_NAME structures. Now you should be able to do:
8168 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8169 and have it automatically work out the correct field type and fill in
8170 the structures. The more adventurous can try:
8171 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8172 and it will (hopefully) work out the correct multibyte encoding.
8175 *) Change the 'req' utility to use the new field handling and multibyte
8176 copy routines. Before the DN field creation was handled in an ad hoc
8177 way in req, ca, and x509 which was rather broken and didn't support
8178 BMPStrings or UTF8Strings. Since some software doesn't implement
8179 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8180 using the dirstring_type option. See the new comment in the default
8181 openssl.cnf for more info.
8184 *) Make crypto/rand/md_rand.c more robust:
8185 - Assure unique random numbers after fork().
8186 - Make sure that concurrent threads access the global counter and
8187 md serializably so that we never lose entropy in them
8188 or use exactly the same state in multiple threads.
8189 Access to the large state is not always serializable because
8190 the additional locking could be a performance killer, and
8191 md should be large enough anyway.
8194 *) New file apps/app_rand.c with commonly needed functionality
8195 for handling the random seed file.
8197 Use the random seed file in some applications that previously did not:
8199 dsaparam -genkey (which also ignored its '-rand' option),
8202 x509 (when signing).
8203 Except on systems with /dev/urandom, it is crucial to have a random
8204 seed file at least for key creation, DSA signing, and for DH exchanges;
8205 for RSA signatures we could do without one.
8207 gendh and gendsa (unlike genrsa) used to read only the first byte
8208 of each file listed in the '-rand' option. The function as previously
8209 found in genrsa is now in app_rand.c and is used by all programs
8210 that support '-rand'.
8213 *) In RAND_write_file, use mode 0600 for creating files;
8214 don't just chmod when it may be too late.
8217 *) Report an error from X509_STORE_load_locations
8218 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8221 *) New function ASN1_mbstring_copy() this copies a string in either
8222 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8223 into an ASN1_STRING type. A mask of permissible types is passed
8224 and it chooses the "minimal" type to use or an error if not type
8228 *) Add function equivalents to the various macros in asn1.h. The old
8229 macros are retained with an M_ prefix. Code inside the library can
8230 use the M_ macros. External code (including the openssl utility)
8231 should *NOT* in order to be "shared library friendly".
8234 *) Add various functions that can check a certificate's extensions
8235 to see if it usable for various purposes such as SSL client,
8236 server or S/MIME and CAs of these types. This is currently
8237 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8238 verification. Also added a -purpose flag to x509 utility to
8239 print out all the purposes.
8242 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8246 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8247 for, obtain and decode and extension and obtain its critical flag.
8248 This allows all the necessary extension code to be handled in a
8249 single function call.
8252 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8253 platforms. See crypto/rc4/rc4_enc.c for further details.
8256 *) New -noout option to asn1parse. This causes no output to be produced
8257 its main use is when combined with -strparse and -out to extract data
8258 from a file (which may not be in ASN.1 format).
8261 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8262 when producing the local key id.
8263 [Richard Levitte <levitte@stacken.kth.se>]
8265 *) New option -dhparam in s_server. This allows a DH parameter file to be
8266 stated explicitly. If it is not stated then it tries the first server
8267 certificate file. The previous behaviour hard coded the filename
8271 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8272 a public key to be input or output. For example:
8273 openssl rsa -in key.pem -pubout -out pubkey.pem
8274 Also added necessary DSA public key functions to handle this.
8277 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8278 in the message. This was handled by allowing
8279 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8280 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8282 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8283 to the end of the strings whereas this didn't. This would cause problems
8284 if strings read with d2i_ASN1_bytes() were later modified.
8285 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8287 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8288 data and it contains EOF it will end up returning an error. This is
8289 caused by input 46 bytes long. The cause is due to the way base64
8290 BIOs find the start of base64 encoded data. They do this by trying a
8291 trial decode on each line until they find one that works. When they
8292 do a flag is set and it starts again knowing it can pass all the
8293 data directly through the decoder. Unfortunately it doesn't reset
8294 the context it uses. This means that if EOF is reached an attempt
8295 is made to pass two EOFs through the context and this causes the
8296 resulting error. This can also cause other problems as well. As is
8297 usual with these problems it takes *ages* to find and the fix is
8298 trivial: move one line.
8299 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8301 *) Ugly workaround to get s_client and s_server working under Windows. The
8302 old code wouldn't work because it needed to select() on sockets and the
8303 tty (for keypresses and to see if data could be written). Win32 only
8304 supports select() on sockets so we select() with a 1s timeout on the
8305 sockets and then see if any characters are waiting to be read, if none
8306 are present then we retry, we also assume we can always write data to
8307 the tty. This isn't nice because the code then blocks until we've
8308 received a complete line of data and it is effectively polling the
8309 keyboard at 1s intervals: however it's quite a bit better than not
8310 working at all :-) A dedicated Windows application might handle this
8311 with an event loop for example.
8314 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8315 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8316 will be called when RSA_sign() and RSA_verify() are used. This is useful
8317 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8318 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8319 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8320 This necessitated the support of an extra signature type NID_md5_sha1
8321 for SSL signatures and modifications to the SSL library to use it instead
8322 of calling RSA_public_decrypt() and RSA_private_encrypt().
8325 *) Add new -verify -CAfile and -CApath options to the crl program, these
8326 will lookup a CRL issuers certificate and verify the signature in a
8327 similar way to the verify program. Tidy up the crl program so it
8328 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8329 less strict. It will now permit CRL extensions even if it is not
8330 a V2 CRL: this will allow it to tolerate some broken CRLs.
8333 *) Initialize all non-automatic variables each time one of the openssl
8334 sub-programs is started (this is necessary as they may be started
8335 multiple times from the "OpenSSL>" prompt).
8336 [Lennart Bang, Bodo Moeller]
8338 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8339 removing all other RSA functionality (this is what NO_RSA does). This
8340 is so (for example) those in the US can disable those operations covered
8341 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8345 *) Non-copying interface to BIO pairs.
8346 (still largely untested)
8349 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8350 ASCII string. This was handled independently in various places before.
8353 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8354 UTF8 strings a character at a time.
8357 *) Use client_version from client hello to select the protocol
8358 (s23_srvr.c) and for RSA client key exchange verification
8359 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8362 *) Add various utility functions to handle SPKACs, these were previously
8363 handled by poking round in the structure internals. Added new function
8364 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8365 print, verify and generate SPKACs. Based on an original idea from
8366 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8369 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8372 *) Allow the config file extension section to be overwritten on the
8373 command line. Based on an original idea from Massimiliano Pala
8374 <madwolf@comune.modena.it>. The new option is called -extensions
8375 and can be applied to ca, req and x509. Also -reqexts to override
8376 the request extensions in req and -crlexts to override the crl extensions
8380 *) Add new feature to the SPKAC handling in ca. Now you can include
8381 the same field multiple times by preceding it by "XXXX." for example:
8384 this is the same syntax as used in the req config file.
8387 *) Allow certificate extensions to be added to certificate requests. These
8388 are specified in a 'req_extensions' option of the req section of the
8389 config file. They can be printed out with the -text option to req but
8390 are otherwise ignored at present.
8393 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8394 data read consists of only the final block it would not decrypted because
8395 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8396 A misplaced 'break' also meant the decrypted final block might not be
8397 copied until the next read.
8400 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8401 a few extra parameters to the DH structure: these will be useful if
8402 for example we want the value of 'q' or implement X9.42 DH.
8405 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8406 provides hooks that allow the default DSA functions or functions on a
8407 "per key" basis to be replaced. This allows hardware acceleration and
8408 hardware key storage to be handled without major modification to the
8409 library. Also added low level modexp hooks and CRYPTO_EX structure and
8410 associated functions.
8413 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8414 as "read only": it can't be written to and the buffer it points to will
8415 not be freed. Reading from a read only BIO is much more efficient than
8416 a normal memory BIO. This was added because there are several times when
8417 an area of memory needs to be read from a BIO. The previous method was
8418 to create a memory BIO and write the data to it, this results in two
8419 copies of the data and an O(n^2) reading algorithm. There is a new
8420 function BIO_new_mem_buf() which creates a read only memory BIO from
8421 an area of memory. Also modified the PKCS#7 routines to use read only
8425 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8426 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8427 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8428 but a retry condition occured while trying to read the rest.
8431 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8432 NID_pkcs7_encrypted by default: this was wrong since this should almost
8433 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8434 the encrypted data type: this is a more sensible place to put it and it
8435 allows the PKCS#12 code to be tidied up that duplicated this
8439 *) Changed obj_dat.pl script so it takes its input and output files on
8440 the command line. This should avoid shell escape redirection problems
8444 *) Initial support for certificate extension requests, these are included
8445 in things like Xenroll certificate requests. Included functions to allow
8446 extensions to be obtained and added.
8449 *) -crlf option to s_client and s_server for sending newlines as
8450 CRLF (as required by many protocols).
8453 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8455 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8456 [Ralf S. Engelschall]
8458 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8459 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8461 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8465 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8466 DH parameters/keys (q is lost during that conversion, but the resulting
8467 DH parameters contain its length).
8469 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8470 much faster than DH_generate_parameters (which creates parameters
8471 where p = 2*q + 1), and also the smaller q makes DH computations
8472 much more efficient (160-bit exponentiation instead of 1024-bit
8473 exponentiation); so this provides a convenient way to support DHE
8474 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8475 utter importance to use
8476 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8478 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8479 when such DH parameters are used, because otherwise small subgroup
8480 attacks may become possible!
8483 *) Avoid memory leak in i2d_DHparams.
8486 *) Allow the -k option to be used more than once in the enc program:
8487 this allows the same encrypted message to be read by multiple recipients.
8490 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8491 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8492 it will always use the numerical form of the OID, even if it has a short
8496 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8497 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8498 otherwise bn_mod_exp was called. In the case of hardware keys for example
8499 no private key components need be present and it might store extra data
8500 in the RSA structure, which cannot be accessed from bn_mod_exp.
8501 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8502 private key operations.
8505 *) Added support for SPARC Linux.
8508 *) pem_password_cb function type incompatibly changed from
8509 typedef int pem_password_cb(char *buf, int size, int rwflag);
8511 ....(char *buf, int size, int rwflag, void *userdata);
8512 so that applications can pass data to their callbacks:
8513 The PEM[_ASN1]_{read,write}... functions and macros now take an
8514 additional void * argument, which is just handed through whenever
8515 the password callback is called.
8516 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8518 New function SSL_CTX_set_default_passwd_cb_userdata.
8520 Compatibility note: As many C implementations push function arguments
8521 onto the stack in reverse order, the new library version is likely to
8522 interoperate with programs that have been compiled with the old
8523 pem_password_cb definition (PEM_whatever takes some data that
8524 happens to be on the stack as its last argument, and the callback
8525 just ignores this garbage); but there is no guarantee whatsoever that
8528 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8529 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8530 problems not only on Windows, but also on some Unix platforms.
8531 To avoid problematic command lines, these definitions are now in an
8532 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8533 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8536 *) MIPS III/IV assembler module is reimplemented.
8539 *) More DES library cleanups: remove references to srand/rand and
8540 delete an unused file.
8543 *) Add support for the the free Netwide assembler (NASM) under Win32,
8544 since not many people have MASM (ml) and it can be hard to obtain.
8545 This is currently experimental but it seems to work OK and pass all
8546 the tests. Check out INSTALL.W32 for info.
8549 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8550 without temporary keys kept an extra copy of the server key,
8551 and connections with temporary keys did not free everything in case
8555 *) New function RSA_check_key and new openssl rsa option -check
8556 for verifying the consistency of RSA keys.
8557 [Ulf Moeller, Bodo Moeller]
8559 *) Various changes to make Win32 compile work:
8560 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8561 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8562 comparison" warnings.
8563 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8566 *) Add a debugging option to PKCS#5 v2 key generation function: when
8567 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8568 derived keys are printed to stderr.
8571 *) Copy the flags in ASN1_STRING_dup().
8572 [Roman E. Pavlov <pre@mo.msk.ru>]
8574 *) The x509 application mishandled signing requests containing DSA
8575 keys when the signing key was also DSA and the parameters didn't match.
8577 It was supposed to omit the parameters when they matched the signing key:
8578 the verifying software was then supposed to automatically use the CA's
8579 parameters if they were absent from the end user certificate.
8581 Omitting parameters is no longer recommended. The test was also
8582 the wrong way round! This was probably due to unusual behaviour in
8583 EVP_cmp_parameters() which returns 1 if the parameters match.
8584 This meant that parameters were omitted when they *didn't* match and
8585 the certificate was useless. Certificates signed with 'ca' didn't have
8587 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8589 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8590 The interface is as follows:
8591 Applications can use
8592 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8593 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8594 "off" is now the default.
8595 The library internally uses
8596 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8597 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8598 to disable memory-checking temporarily.
8600 Some inconsistent states that previously were possible (and were
8601 even the default) are now avoided.
8603 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8604 with each memory chunk allocated; this is occasionally more helpful
8605 than just having a counter.
8607 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8609 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8613 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8614 which largely parallels "options", but is for changing API behaviour,
8615 whereas "options" are about protocol behaviour.
8616 Initial "mode" flags are:
8618 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8619 a single record has been written.
8620 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8621 retries use the same buffer location.
8622 (But all of the contents must be
8626 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8629 *) Fix problems with no-hmac etc.
8630 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8632 *) New functions RSA_get_default_method(), RSA_set_method() and
8633 RSA_get_method(). These allows replacement of RSA_METHODs without having
8634 to mess around with the internals of an RSA structure.
8637 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8638 Also really enable memory leak checks in openssl.c and in some
8640 [Chad C. Mulligan, Bodo Moeller]
8642 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8643 up the length of negative integers. This has now been simplified to just
8644 store the length when it is first determined and use it later, rather
8645 than trying to keep track of where data is copied and updating it to
8647 [Steve Henson, reported by Brien Wheeler
8648 <bwheeler@authentica-security.com>]
8650 *) Add a new function PKCS7_signatureVerify. This allows the verification
8651 of a PKCS#7 signature but with the signing certificate passed to the
8652 function itself. This contrasts with PKCS7_dataVerify which assumes the
8653 certificate is present in the PKCS#7 structure. This isn't always the
8654 case: certificates can be omitted from a PKCS#7 structure and be
8655 distributed by "out of band" means (such as a certificate database).
8658 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8659 function prototypes in pem.h, also change util/mkdef.pl to add the
8660 necessary function names.
8663 *) mk1mf.pl (used by Windows builds) did not properly read the
8664 options set by Configure in the top level Makefile, and Configure
8665 was not even able to write more than one option correctly.
8666 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8669 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8670 file to be loaded from a BIO or FILE pointer. The BIO version will
8671 for example allow memory BIOs to contain config info.
8674 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8675 Whoever hopes to achieve shared-library compatibility across versions
8676 must use this, not the compile-time macro.
8677 (Exercise 0.9.4: Which is the minimum library version required by
8679 Note: All this applies only to multi-threaded programs, others don't
8683 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8684 through a BIO pair triggered the default case, i.e.
8685 SSLerr(...,SSL_R_UNKNOWN_STATE).
8688 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8689 can use the SSL library even if none of the specific BIOs is
8693 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8694 for the encoded length.
8695 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8697 *) Add initial documentation of the X509V3 functions.
8700 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8701 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8702 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8703 secure PKCS#8 private key format with a high iteration count.
8706 *) Fix determination of Perl interpreter: A perl or perl5
8707 _directory_ in $PATH was also accepted as the interpreter.
8708 [Ralf S. Engelschall]
8710 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8711 wrong with it but it was very old and did things like calling
8712 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8716 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8717 to use the new extension code.
8720 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8721 with macros. This should make it easier to change their form, add extra
8722 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8726 *) Add to configuration table a new entry that can specify an alternative
8727 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8728 according to Mark Crispin <MRC@Panda.COM>.
8732 *) DES CBC did not update the IV. Weird.
8735 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8736 Changing the behaviour of the former might break existing programs --
8737 where IV updating is needed, des_ncbc_encrypt can be used.
8740 *) When bntest is run from "make test" it drives bc to check its
8741 calculations, as well as internally checking them. If an internal check
8742 fails, it needs to cause bc to give a non-zero result or make test carries
8743 on without noticing the failure. Fixed.
8746 *) DES library cleanups.
8749 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8750 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8751 ciphers. NOTE: although the key derivation function has been verified
8752 against some published test vectors it has not been extensively tested
8753 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8757 *) Instead of "mkdir -p", which is not fully portable, use new
8758 Perl script "util/mkdir-p.pl".
8761 *) Rewrite the way password based encryption (PBE) is handled. It used to
8762 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8763 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8764 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8765 the 'parameter' field of the AlgorithmIdentifier is passed to the
8766 underlying key generation function so it must do its own ASN1 parsing.
8767 This has also changed the EVP_PBE_CipherInit() function which now has a
8768 'parameter' argument instead of literal salt and iteration count values
8769 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8772 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8773 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8774 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8775 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8776 value was just used as a "magic string" and not used directly its
8777 value doesn't matter.
8780 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8784 *) "linux-sparc64" configuration (ultrapenguin).
8785 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8786 "linux-sparc" configuration.
8787 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8789 *) config now generates no-xxx options for missing ciphers.
8792 *) Support the EBCDIC character set (work in progress).
8793 File ebcdic.c not yet included because it has a different license.
8794 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8796 *) Support BS2000/OSD-POSIX.
8797 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8799 *) Make callbacks for key generation use void * instead of char *.
8802 *) Make S/MIME samples compile (not yet tested).
8805 *) Additional typesafe stacks.
8808 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8812 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8814 *) New configuration variant "sco5-gcc".
8816 *) Updated some demos.
8817 [Sean O Riordain, Wade Scholine]
8819 *) Add missing BIO_free at exit of pkcs12 application.
8822 *) Fix memory leak in conf.c.
8825 *) Updates for Win32 to assembler version of MD5.
8828 *) Set #! path to perl in apps/der_chop to where we found it
8829 instead of using a fixed path.
8832 *) SHA library changes for irix64-mips4-cc.
8835 *) Improvements for VMS support.
8839 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8841 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8842 This also avoids the problems with SC4.2 and unpatched SC5.
8843 [Andy Polyakov <appro@fy.chalmers.se>]
8845 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8846 These are required because of the typesafe stack would otherwise break
8847 existing code. If old code used a structure member which used to be STACK
8848 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8849 sk_num or sk_value it would produce an error because the num, data members
8850 are not present in STACK_OF. Now it just produces a warning. sk_set
8851 replaces the old method of assigning a value to sk_value
8852 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8853 that does this will no longer work (and should use sk_set instead) but
8854 this could be regarded as a "questionable" behaviour anyway.
8857 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8858 correctly handle encrypted S/MIME data.
8861 *) Change type of various DES function arguments from des_cblock
8862 (which means, in function argument declarations, pointer to char)
8863 to des_cblock * (meaning pointer to array with 8 char elements),
8864 which allows the compiler to do more typechecking; it was like
8865 that back in SSLeay, but with lots of ugly casts.
8867 Introduce new type const_des_cblock.
8870 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8871 problems: find RecipientInfo structure that matches recipient certificate
8872 and initialise the ASN1 structures properly based on passed cipher.
8875 *) Belatedly make the BN tests actually check the results.
8878 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8879 to and from BNs: it was completely broken. New compilation option
8880 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8881 key elements as negative integers.
8884 *) Reorganize and speed up MD5.
8885 [Andy Polyakov <appro@fy.chalmers.se>]
8888 [Richard Levitte <richard@levitte.org>]
8890 *) New option -out to asn1parse to allow the parsed structure to be
8891 output to a file. This is most useful when combined with the -strparse
8892 option to examine the output of things like OCTET STRINGS.
8895 *) Make SSL library a little more fool-proof by not requiring any longer
8896 that SSL_set_{accept,connect}_state be called before
8897 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8898 in many applications because usually everything *appeared* to work as
8899 intended anyway -- now it really works as intended).
8902 *) Move openssl.cnf out of lib/.
8905 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8906 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8907 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8908 [Ralf S. Engelschall]
8910 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8911 handle PKCS#7 enveloped data properly.
8912 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8914 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8915 copying pointers. The cert_st handling is changed by this in
8916 various ways (and thus what used to be known as ctx->default_cert
8917 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8918 any longer when s->cert does not give us what we need).
8919 ssl_cert_instantiate becomes obsolete by this change.
8920 As soon as we've got the new code right (possibly it already is?),
8921 we have solved a couple of bugs of the earlier code where s->cert
8922 was used as if it could not have been shared with other SSL structures.
8924 Note that using the SSL API in certain dirty ways now will result
8925 in different behaviour than observed with earlier library versions:
8926 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8927 does not influence s as it used to.
8929 In order to clean up things more thoroughly, inside SSL_SESSION
8930 we don't use CERT any longer, but a new structure SESS_CERT
8931 that holds per-session data (if available); currently, this is
8932 the peer's certificate chain and, for clients, the server's certificate
8933 and temporary key. CERT holds only those values that can have
8934 meaningful defaults in an SSL_CTX.
8937 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8938 from the internal representation. Various PKCS#7 fixes: remove some
8939 evil casts and set the enc_dig_alg field properly based on the signing
8943 *) Allow PKCS#12 password to be set from the command line or the
8944 environment. Let 'ca' get its config file name from the environment
8945 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8949 *) Allow certificate policies extension to use an IA5STRING for the
8950 organization field. This is contrary to the PKIX definition but
8951 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8955 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8956 without disallowing inline assembler and the like for non-pedantic builds.
8959 *) Support Borland C++ builder.
8960 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8965 *) SHA-1 cleanups and performance enhancements.
8966 [Andy Polyakov <appro@fy.chalmers.se>]
8968 *) Sparc v8plus assembler for the bignum library.
8969 [Andy Polyakov <appro@fy.chalmers.se>]
8971 *) Accept any -xxx and +xxx compiler options in Configure.
8974 *) Update HPUX configuration.
8977 *) Add missing sk_<type>_unshift() function to safestack.h
8978 [Ralf S. Engelschall]
8980 *) New function SSL_CTX_use_certificate_chain_file that sets the
8981 "extra_cert"s in addition to the certificate. (This makes sense
8982 only for "PEM" format files, as chains as a whole are not
8986 *) Support verify_depth from the SSL API.
8987 x509_vfy.c had what can be considered an off-by-one-error:
8988 Its depth (which was not part of the external interface)
8989 was actually counting the number of certificates in a chain;
8990 now it really counts the depth.
8993 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8994 instead of X509err, which often resulted in confusing error
8995 messages since the error codes are not globally unique
8996 (e.g. an alleged error in ssl3_accept when a certificate
8997 didn't match the private key).
8999 *) New function SSL_CTX_set_session_id_context that allows to set a default
9000 value (so that you don't need SSL_set_session_id_context for each
9001 connection using the SSL_CTX).
9004 *) OAEP decoding bug fix.
9007 *) Support INSTALL_PREFIX for package builders, as proposed by
9011 *) New Configure options "threads" and "no-threads". For systems
9012 where the proper compiler options are known (currently Solaris
9013 and Linux), "threads" is the default.
9016 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9019 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9020 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9021 such as /usr/local/bin.
9024 *) "make linux-shared" to build shared libraries.
9025 [Niels Poppe <niels@netbox.org>]
9027 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9030 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9031 extension adding in x509 utility.
9034 *) Remove NOPROTO sections and error code comments.
9037 *) Partial rewrite of the DEF file generator to now parse the ANSI
9041 *) New Configure options --prefix=DIR and --openssldir=DIR.
9044 *) Complete rewrite of the error code script(s). It is all now handled
9045 by one script at the top level which handles error code gathering,
9046 header rewriting and C source file generation. It should be much better
9047 than the old method: it now uses a modified version of Ulf's parser to
9048 read the ANSI prototypes in all header files (thus the old K&R definitions
9049 aren't needed for error creation any more) and do a better job of
9050 translating function codes into names. The old 'ASN1 error code imbedded
9051 in a comment' is no longer necessary and it doesn't use .err files which
9052 have now been deleted. Also the error code call doesn't have to appear all
9053 on one line (which resulted in some large lines...).
9056 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9059 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9060 0 (which usually indicates a closed connection), but continue reading.
9063 *) Fix some race conditions.
9066 *) Add support for CRL distribution points extension. Add Certificate
9067 Policies and CRL distribution points documentation.
9070 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9073 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9074 8 of keying material. Merlin has also confirmed interop with this fix
9075 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9076 [Merlin Hughes <merlin@baltimore.ie>]
9078 *) Fix lots of warnings.
9079 [Richard Levitte <levitte@stacken.kth.se>]
9081 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9082 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9083 [Richard Levitte <levitte@stacken.kth.se>]
9085 *) Fix problems with sizeof(long) == 8.
9086 [Andy Polyakov <appro@fy.chalmers.se>]
9088 *) Change functions to ANSI C.
9091 *) Fix typos in error codes.
9092 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9094 *) Remove defunct assembler files from Configure.
9097 *) SPARC v8 assembler BIGNUM implementation.
9098 [Andy Polyakov <appro@fy.chalmers.se>]
9100 *) Support for Certificate Policies extension: both print and set.
9101 Various additions to support the r2i method this uses.
9104 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9105 return a const string when you are expecting an allocated buffer.
9108 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9109 types DirectoryString and DisplayText.
9112 *) Add code to allow r2i extensions to access the configuration database,
9113 add an LHASH database driver and add several ctx helper functions.
9116 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9117 fail when they extended the size of a BIGNUM.
9120 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9121 support typesafe stack.
9124 *) Fix typo in SSL_[gs]et_options().
9125 [Nils Frostberg <nils@medcom.se>]
9127 *) Delete various functions and files that belonged to the (now obsolete)
9128 old X509V3 handling code.
9131 *) New Configure option "rsaref".
9134 *) Don't auto-generate pem.h.
9137 *) Introduce type-safe ASN.1 SETs.
9140 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9141 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9143 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9144 that links with OpenSSL (well at least cause lots of warnings), but fear
9145 not: the conversion is trivial, and it eliminates loads of evil casts. A
9146 few STACKed things have been converted already. Feel free to convert more.
9147 In the fullness of time, I'll do away with the STACK type altogether.
9150 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9151 specified in <certfile> by updating the entry in the index.txt file.
9152 This way one no longer has to edit the index.txt file manually for
9153 revoking a certificate. The -revoke option does the gory details now.
9154 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9156 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9157 `-text' option at all and this way the `-noout -text' combination was
9158 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9159 [Ralf S. Engelschall]
9161 *) Make sure a corresponding plain text error message exists for the
9162 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9163 verify callback function determined that a certificate was revoked.
9164 [Ralf S. Engelschall]
9166 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9167 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9168 all available cipers including rc5, which was forgotten until now.
9169 In order to let the testing shell script know which algorithms
9170 are available, a new (up to now undocumented) command
9171 "openssl list-cipher-commands" is used.
9174 *) Bugfix: s_client occasionally would sleep in select() when
9175 it should have checked SSL_pending() first.
9178 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9179 the raw DSA values prior to ASN.1 encoding.
9182 *) Tweaks to Configure
9183 [Niels Poppe <niels@netbox.org>]
9185 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9189 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9192 *) New config option to avoid instructions that are illegal on the 80386.
9193 The default code is faster, but requires at least a 486.
9196 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9197 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9198 same as SSL2_VERSION anyway.
9201 *) New "-showcerts" option for s_client.
9204 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9205 application. Various cleanups and fixes.
9208 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9209 modify error routines to work internally. Add error codes and PBE init
9210 to library startup routines.
9213 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9214 packing functions to asn1 and evp. Changed function names and error
9215 codes along the way.
9218 *) PKCS12 integration: and so it begins... First of several patches to
9219 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9220 objects to objects.h
9223 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9224 and display support for Thawte strong extranet extension.
9227 *) Add LinuxPPC support.
9228 [Jeff Dubrule <igor@pobox.org>]
9230 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9231 bn_div_words in alpha.s.
9232 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9234 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9235 OAEP isn't supported when OpenSSL is built with RSAref.
9236 [Ulf Moeller <ulf@fitug.de>]
9238 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9239 so they no longer are missing under -DNOPROTO.
9240 [Soren S. Jorvang <soren@t.dk>]
9243 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9245 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9246 doesn't work when the session is reused. Coming soon!
9249 *) Fix a security hole, that allows sessions to be reused in the wrong
9250 context thus bypassing client cert protection! All software that uses
9251 client certs and session caches in multiple contexts NEEDS PATCHING to
9252 allow session reuse! A fuller solution is in the works.
9253 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9255 *) Some more source tree cleanups (removed obsolete files
9256 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9257 permission on "config" script to be executable) and a fix for the INSTALL
9259 [Ulf Moeller <ulf@fitug.de>]
9261 *) Remove some legacy and erroneous uses of malloc, free instead of
9263 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9265 *) Make rsa_oaep_test return non-zero on error.
9266 [Ulf Moeller <ulf@fitug.de>]
9268 *) Add support for native Solaris shared libraries. Configure
9269 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9270 if someone would make that last step automatic.
9271 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9273 *) ctx_size was not built with the right compiler during "make links". Fixed.
9276 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9277 except NULL ciphers". This means the default cipher list will no longer
9278 enable NULL ciphers. They need to be specifically enabled e.g. with
9279 the string "DEFAULT:eNULL".
9282 *) Fix to RSA private encryption routines: if p < q then it would
9283 occasionally produce an invalid result. This will only happen with
9284 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9287 *) Be less restrictive and allow also `perl util/perlpath.pl
9288 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9289 because this way one can also use an interpreter named `perl5' (which is
9290 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9291 installed as `perl').
9292 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9294 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9295 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9297 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9298 advapi32.lib to Win32 build and change the pem test comparision
9299 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9300 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9301 and crypto/des/ede_cbcm_enc.c.
9304 *) DES quad checksum was broken on big-endian architectures. Fixed.
9307 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9308 Win32 test batch file so it (might) work again. The Win32 test batch file
9309 is horrible: I feel ill....
9312 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9313 in e_os.h. Audit of header files to check ANSI and non ANSI
9314 sections: 10 functions were absent from non ANSI section and not exported
9315 from Windows DLLs. Fixed up libeay.num for new functions.
9318 *) Make `openssl version' output lines consistent.
9319 [Ralf S. Engelschall]
9321 *) Fix Win32 symbol export lists for BIO functions: Added
9322 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9323 to ms/libeay{16,32}.def.
9324 [Ralf S. Engelschall]
9326 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9327 fine under Unix and passes some trivial tests I've now added. But the
9328 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9329 added to make sure no one expects that this stuff really works in the
9330 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9331 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9333 [Ralf S. Engelschall]
9335 *) Fix the generation of two part addresses in perl.
9336 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9338 *) Add config entry for Linux on MIPS.
9339 [John Tobey <jtobey@channel1.com>]
9341 *) Make links whenever Configure is run, unless we are on Windoze.
9344 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9345 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9349 *) Add a useful kludge to allow package maintainers to specify compiler and
9350 other platforms details on the command line without having to patch the
9351 Configure script everytime: One now can use ``perl Configure
9352 <id>:<details>'', i.e. platform ids are allowed to have details appended
9353 to them (seperated by colons). This is treated as there would be a static
9354 pre-configured entry in Configure's %table under key <id> with value
9355 <details> and ``perl Configure <id>'' is called. So, when you want to
9356 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9357 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9358 now, which overrides the FreeBSD-elf entry on-the-fly.
9359 [Ralf S. Engelschall]
9361 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9364 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9365 on the `perl Configure ...' command line. This way one can compile
9366 OpenSSL libraries with Position Independent Code (PIC) which is needed
9367 for linking it into DSOs.
9368 [Ralf S. Engelschall]
9370 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9374 *) Cleaned up the LICENSE document: The official contact for any license
9375 questions now is the OpenSSL core team under openssl-core@openssl.org.
9376 And add a paragraph about the dual-license situation to make sure people
9377 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9378 to the OpenSSL toolkit.
9379 [Ralf S. Engelschall]
9381 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9382 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9383 Additonally cleaned up the `make links' target: Remove unnecessary
9384 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9385 to speed processing and no longer clutter the display with confusing
9386 stuff. Instead only the actually done links are displayed.
9387 [Ralf S. Engelschall]
9389 *) Permit null encryption ciphersuites, used for authentication only. It used
9390 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9391 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9395 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9396 signed attributes when verifying signatures (this would break them),
9397 the detached data encoding was wrong and public keys obtained using
9398 X509_get_pubkey() weren't freed.
9401 *) Add text documentation for the BUFFER functions. Also added a work around
9402 to a Win95 console bug. This was triggered by the password read stuff: the
9403 last character typed gets carried over to the next fread(). If you were
9404 generating a new cert request using 'req' for example then the last
9405 character of the passphrase would be CR which would then enter the first
9409 *) Added the new `Includes OpenSSL Cryptography Software' button as
9410 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9411 button and can be used by applications based on OpenSSL to show the
9412 relationship to the OpenSSL project.
9413 [Ralf S. Engelschall]
9415 *) Remove confusing variables in function signatures in files
9416 ssl/ssl_lib.c and ssl/ssl.h.
9417 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9419 *) Don't install bss_file.c under PREFIX/include/
9420 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9422 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9423 functions that return function pointers and has support for NT specific
9424 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9425 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9426 unsigned to signed types: this was killing the Win32 compile.
9429 *) Add new certificate file to stack functions,
9430 SSL_add_dir_cert_subjects_to_stack() and
9431 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9432 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9433 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9434 This means that Apache-SSL and similar packages don't have to mess around
9435 to add as many CAs as they want to the preferred list.
9438 *) Experiment with doxygen documentation. Currently only partially applied to
9440 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9441 openssl.doxy as the configuration file.
9444 *) Get rid of remaining C++-style comments which strict C compilers hate.
9445 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9447 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9448 compiled in by default: it has problems with large keys.
9451 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9452 DH private keys and/or callback functions which directly correspond to
9453 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9454 is needed for applications which have to configure certificates on a
9455 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9457 For the RSA certificate situation is makes no difference, but
9458 for the DSA certificate situation this fixes the "no shared cipher"
9459 problem where the OpenSSL cipher selection procedure failed because the
9460 temporary keys were not overtaken from the context and the API provided
9461 no way to reconfigure them.
9462 The new functions now let applications reconfigure the stuff and they
9463 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9464 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9465 non-public-API function ssl_cert_instantiate() is used as a helper
9466 function and also to reduce code redundancy inside ssl_rsa.c.
9467 [Ralf S. Engelschall]
9469 *) Move s_server -dcert and -dkey options out of the undocumented feature
9470 area because they are useful for the DSA situation and should be
9471 recognized by the users.
9472 [Ralf S. Engelschall]
9474 *) Fix the cipher decision scheme for export ciphers: the export bits are
9475 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9476 SSL_EXP_MASK. So, the original variable has to be used instead of the
9477 already masked variable.
9478 [Richard Levitte <levitte@stacken.kth.se>]
9480 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9481 [Richard Levitte <levitte@stacken.kth.se>]
9483 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9484 from `int' to `unsigned int' because it's a length and initialized by
9485 EVP_DigestFinal() which expects an `unsigned int *'.
9486 [Richard Levitte <levitte@stacken.kth.se>]
9488 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9489 script. Instead use the usual Shell->Perl transition trick.
9490 [Ralf S. Engelschall]
9492 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9493 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9494 -noout -modulus' as it's already the case for `openssl rsa -noout
9495 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9496 currently the public key is printed (a decision which was already done by
9497 `openssl dsa -modulus' in the past) which serves a similar purpose.
9498 Additionally the NO_RSA no longer completely removes the whole -modulus
9499 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9501 [Ralf S. Engelschall]
9503 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9504 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9505 [Arne Ansper <arne@ats.cyber.ee>]
9507 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9508 to be added. Now both 'req' and 'ca' can use new objects defined in the
9512 *) Add cool BIO that does syslog (or event log on NT).
9513 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9515 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9516 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9517 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9518 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9521 *) Add preliminary config info for new extension code.
9524 *) Make RSA_NO_PADDING really use no padding.
9525 [Ulf Moeller <ulf@fitug.de>]
9527 *) Generate errors when private/public key check is done.
9530 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9531 for some CRL extensions and new objects added.
9534 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9535 key usage extension and fuller support for authority key id.
9538 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9539 padding method for RSA, which is recommended for new applications in PKCS
9540 #1 v2.0 (RFC 2437, October 1998).
9541 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9542 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9543 against Bleichbacher's attack on RSA.
9544 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9547 *) Updates to the new SSL compression code
9548 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9550 *) Fix so that the version number in the master secret, when passed
9551 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9552 (because the server will not accept higher), that the version number
9553 is 0x03,0x01, not 0x03,0x00
9554 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9556 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9557 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9558 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9561 *) Support for RAW extensions where an arbitrary extension can be
9562 created by including its DER encoding. See apps/openssl.cnf for
9566 *) Make sure latest Perl versions don't interpret some generated C array
9567 code as Perl array code in the crypto/err/err_genc.pl script.
9568 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9570 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9571 not many people have the assembler. Various Win32 compilation fixes and
9572 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9576 *) Modify configure script 'Configure' to automatically create crypto/date.h
9577 file under Win32 and also build pem.h from pem.org. New script
9578 util/mkfiles.pl to create the MINFO file on environments that can't do a
9579 'make files': perl util/mkfiles.pl >MINFO should work.
9582 *) Major rework of DES function declarations, in the pursuit of correctness
9583 and purity. As a result, many evil casts evaporated, and some weirdness,
9584 too. You may find this causes warnings in your code. Zapping your evil
9585 casts will probably fix them. Mostly.
9588 *) Fix for a typo in asn1.h. Bug fix to object creation script
9589 obj_dat.pl. It considered a zero in an object definition to mean
9590 "end of object": none of the objects in objects.h have any zeros
9591 so it wasn't spotted.
9592 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9594 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9595 Masking (CBCM). In the absence of test vectors, the best I have been able
9596 to do is check that the decrypt undoes the encrypt, so far. Send me test
9597 vectors if you have them.
9600 *) Correct calculation of key length for export ciphers (too much space was
9601 allocated for null ciphers). This has not been tested!
9604 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9605 message is now correct (it understands "crypto" and "ssl" on its
9606 command line). There is also now an "update" option. This will update
9607 the util/ssleay.num and util/libeay.num files with any new functions.
9609 perl util/mkdef.pl crypto ssl update
9610 it will update them.
9613 *) Overhauled the Perl interface (perl/*):
9614 - ported BN stuff to OpenSSL's different BN library
9615 - made the perl/ source tree CVS-aware
9616 - renamed the package from SSLeay to OpenSSL (the files still contain
9617 their history because I've copied them in the repository)
9618 - removed obsolete files (the test scripts will be replaced
9619 by better Test::Harness variants in the future)
9620 [Ralf S. Engelschall]
9622 *) First cut for a very conservative source tree cleanup:
9623 1. merge various obsolete readme texts into doc/ssleay.txt
9624 where we collect the old documents and readme texts.
9625 2. remove the first part of files where I'm already sure that we no
9626 longer need them because of three reasons: either they are just temporary
9627 files which were left by Eric or they are preserved original files where
9628 I've verified that the diff is also available in the CVS via "cvs diff
9629 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9630 the crypto/md/ stuff).
9631 [Ralf S. Engelschall]
9633 *) More extension code. Incomplete support for subject and issuer alt
9634 name, issuer and authority key id. Change the i2v function parameters
9635 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9636 what that's for :-) Fix to ASN1 macro which messed up
9637 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9640 *) Preliminary support for ENUMERATED type. This is largely copied from the
9644 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9645 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9647 *) Make sure `make rehash' target really finds the `openssl' program.
9648 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9650 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9651 like to hear about it if this slows down other processors.
9654 *) Add CygWin32 platform information to Configure script.
9655 [Alan Batie <batie@aahz.jf.intel.com>]
9657 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9658 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9660 *) New program nseq to manipulate netscape certificate sequences
9663 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9667 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9668 but the BN code had some problems that would cause failures when
9669 doing certificate verification and some other functions.
9670 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9672 *) Add ASN1 and PEM code to support netscape certificate sequences.
9675 *) Add ASN1 and PEM code to support netscape certificate sequences.
9678 *) Add several PKIX and private extended key usage OIDs.
9681 *) Modify the 'ca' program to handle the new extension code. Modify
9682 openssl.cnf for new extension format, add comments.
9685 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9686 and add a sample to openssl.cnf so req -x509 now adds appropriate
9690 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9691 error code, add initial support to X509_print() and x509 application.
9694 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9695 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9696 stuff is currently isolated and isn't even compiled yet.
9699 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9700 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9701 Removed the versions check from X509 routines when loading extensions:
9702 this allows certain broken certificates that don't set the version
9703 properly to be processed.
9706 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9707 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9708 can still be regenerated with "make depend".
9711 *) Spelling mistake in C version of CAST-128.
9712 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9714 *) Changes to the error generation code. The perl script err-code.pl
9715 now reads in the old error codes and retains the old numbers, only
9716 adding new ones if necessary. It also only changes the .err files if new
9717 codes are added. The makefiles have been modified to only insert errors
9718 when needed (to avoid needlessly modifying header files). This is done
9719 by only inserting errors if the .err file is newer than the auto generated
9720 C file. To rebuild all the error codes from scratch (the old behaviour)
9721 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9722 or delete all the .err files.
9725 *) CAST-128 was incorrectly implemented for short keys. The C version has
9726 been fixed, but is untested. The assembler versions are also fixed, but
9727 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9728 to regenerate it if needed.
9729 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9730 Hagino <itojun@kame.net>]
9732 *) File was opened incorrectly in randfile.c.
9733 [Ulf Möller <ulf@fitug.de>]
9735 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9736 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9737 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9738 al: it's just almost always a UTCTime. Note this patch adds new error
9739 codes so do a "make errors" if there are problems.
9742 *) Correct Linux 1 recognition in config.
9743 [Ulf Möller <ulf@fitug.de>]
9745 *) Remove pointless MD5 hash when using DSA keys in ca.
9746 [Anonymous <nobody@replay.com>]
9748 *) Generate an error if given an empty string as a cert directory. Also
9749 generate an error if handed NULL (previously returned 0 to indicate an
9750 error, but didn't set one).
9751 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9753 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9756 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9757 parameters. This was causing a warning which killed off the Win32 compile.
9760 *) Remove C++ style comments from crypto/bn/bn_local.h.
9761 [Neil Costigan <neil.costigan@celocom.com>]
9763 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9764 based on a text string, looking up short and long names and finally
9765 "dot" format. The "dot" format stuff didn't work. Added new function
9766 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9767 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9768 OID is not part of the table.
9771 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9772 X509_LOOKUP_by_alias().
9775 *) Sort openssl functions by name.
9778 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9779 encryption from sample DSA keys (in case anyone is interested the password
9783 *) Make _all_ *_free functions accept a NULL pointer.
9784 [Frans Heymans <fheymans@isaserver.be>]
9786 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9788 [Anonymous <nobody@replay.com>]
9790 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9791 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9793 *) Don't blow it for numeric -newkey arguments to apps/req.
9794 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9796 *) Temp key "for export" tests were wrong in s3_srvr.c.
9797 [Anonymous <nobody@replay.com>]
9799 *) Add prototype for temp key callback functions
9800 SSL_CTX_set_tmp_{rsa,dh}_callback().
9803 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9804 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9807 *) X509_name_add_entry() freed the wrong thing after an error.
9808 [Arne Ansper <arne@ats.cyber.ee>]
9810 *) rsa_eay.c would attempt to free a NULL context.
9811 [Arne Ansper <arne@ats.cyber.ee>]
9813 *) BIO_s_socket() had a broken should_retry() on Windoze.
9814 [Arne Ansper <arne@ats.cyber.ee>]
9816 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9817 [Arne Ansper <arne@ats.cyber.ee>]
9819 *) Make sure the already existing X509_STORE->depth variable is initialized
9820 in X509_STORE_new(), but document the fact that this variable is still
9821 unused in the certificate verification process.
9822 [Ralf S. Engelschall]
9824 *) Fix the various library and apps files to free up pkeys obtained from
9825 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9828 *) Fix reference counting in X509_PUBKEY_get(). This makes
9829 demos/maurice/example2.c work, amongst others, probably.
9830 [Steve Henson and Ben Laurie]
9832 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9833 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9834 are no longer created. This way we have a single and consistent command
9835 line interface `openssl <command>', similar to `cvs <command>'.
9836 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9838 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9839 BIT STRING wrapper always have zero unused bits.
9842 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9845 *) Make the top-level INSTALL documentation easier to understand.
9848 *) Makefiles updated to exit if an error occurs in a sub-directory
9849 make (including if user presses ^C) [Paul Sutton]
9851 *) Make Montgomery context stuff explicit in RSA data structure.
9854 *) Fix build order of pem and err to allow for generated pem.h.
9857 *) Fix renumbering bug in X509_NAME_delete_entry().
9860 *) Enhanced the err-ins.pl script so it makes the error library number
9861 global and can add a library name. This is needed for external ASN1 and
9862 other error libraries.
9865 *) Fixed sk_insert which never worked properly.
9868 *) Fix ASN1 macros so they can handle indefinite length construted
9869 EXPLICIT tags. Some non standard certificates use these: they can now
9873 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9874 into a single doc/ssleay.txt bundle. This way the information is still
9875 preserved but no longer messes up this directory. Now it's new room for
9876 the new set of documenation files.
9877 [Ralf S. Engelschall]
9879 *) SETs were incorrectly DER encoded. This was a major pain, because they
9880 shared code with SEQUENCEs, which aren't coded the same. This means that
9881 almost everything to do with SETs or SEQUENCEs has either changed name or
9882 number of arguments.
9883 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9885 *) Fix test data to work with the above.
9888 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9889 was already fixed by Eric for 0.9.1 it seems.
9890 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9892 *) Autodetect FreeBSD3.
9895 *) Fix various bugs in Configure. This affects the following platforms:
9899 unixware-2.0-pentium
9903 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9904 before they are needed.
9907 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9911 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9913 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9914 changed SSLeay to OpenSSL in version strings.
9915 [Ralf S. Engelschall]
9917 *) Some fixups to the top-level documents.
9920 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9921 because the symlink to include/ was missing.
9922 [Ralf S. Engelschall]
9924 *) Incorporated the popular no-RSA/DSA-only patches
9925 which allow to compile a RSA-free SSLeay.
9926 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9928 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9929 when "ssleay" is still not found.
9930 [Ralf S. Engelschall]
9932 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9933 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9935 *) Updated the README file.
9936 [Ralf S. Engelschall]
9938 *) Added various .cvsignore files in the CVS repository subdirs
9939 to make a "cvs update" really silent.
9940 [Ralf S. Engelschall]
9942 *) Recompiled the error-definition header files and added
9943 missing symbols to the Win32 linker tables.
9944 [Ralf S. Engelschall]
9946 *) Cleaned up the top-level documents;
9947 o new files: CHANGES and LICENSE
9948 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9949 o merged COPYRIGHT into LICENSE
9950 o removed obsolete TODO file
9951 o renamed MICROSOFT to INSTALL.W32
9952 [Ralf S. Engelschall]
9954 *) Removed dummy files from the 0.9.1b source tree:
9955 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9956 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9957 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9958 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9959 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9960 [Ralf S. Engelschall]
9962 *) Added various platform portability fixes.
9965 *) The Genesis of the OpenSSL rpject:
9966 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9967 Young and Tim J. Hudson created while they were working for C2Net until
9969 [The OpenSSL Project]
9972 Changes between 0.9.0b and 0.9.1b [not released]
9974 *) Updated a few CA certificates under certs/
9977 *) Changed some BIGNUM api stuff.
9980 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9981 DGUX x86, Linux Alpha, etc.
9984 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9985 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9989 *) Add -strparse option to asn1pars program which parses nested
9991 [Dr Stephen Henson <shenson@bigfoot.com>]
9993 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9996 *) DSA fix for "ca" program.
9999 *) Added "-genkey" option to "dsaparam" program.
10002 *) Added RIPE MD160 (rmd160) message digest.
10005 *) Added -a (all) option to "ssleay version" command.
10008 *) Added PLATFORM define which is the id given to Configure.
10011 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10014 *) Extended the ASN.1 parser routines.
10017 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10020 *) Added a BN_CTX to the BN library.
10023 *) Fixed the weak key values in DES library
10026 *) Changed API in EVP library for cipher aliases.
10029 *) Added support for RC2/64bit cipher.
10032 *) Converted the lhash library to the crypto/mem.c functions.
10035 *) Added more recognized ASN.1 object ids.
10038 *) Added more RSA padding checks for SSL/TLS.
10041 *) Added BIO proxy/filter functionality.
10044 *) Added extra_certs to SSL_CTX which can be used
10045 send extra CA certificates to the client in the CA cert chain sending
10046 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10049 *) Now Fortezza is denied in the authentication phase because
10050 this is key exchange mechanism is not supported by SSLeay at all.
10053 *) Additional PKCS1 checks.
10056 *) Support the string "TLSv1" for all TLS v1 ciphers.
10059 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10060 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10063 *) Fixed a few memory leaks.
10066 *) Fixed various code and comment typos.
10069 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10070 bytes sent in the client random.
10071 [Edward Bishop <ebishop@spyglass.com>]