5 Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
7 *) Enhance and tidy EC curve and point format TLS extension code. Use
8 static structures instead of allocation if default values are used.
9 New ctrls to set curves we wish to support and to retrieve shared curves.
10 Print out shared curves in s_server. New options to s_server and s_client
11 to set list of supported curves.
14 *) New ctrls to retrieve supported signature algorithms and
15 supported curve values as an array of NIDs. Extend openssl utility
16 to print out received values.
19 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
20 between NIDs and the more common NIST names such as "P-256". Enhance
21 ecparam utility and ECC method to recognise the NIST names for curves.
24 *) Enhance SSL/TLS certificate chain handling to support different
25 chains for each certificate instead of one chain in the parent SSL_CTX.
28 *) Support for fixed DH ciphersuite client authentication: where both
29 server and client use DH certificates with common parameters.
32 *) Support for fixed DH ciphersuites: those requiring DH server
36 *) Transparently support X9.42 DH parameters when calling
37 PEM_read_bio_DHparameters. This means existing applications can handle
38 the new parameter format automatically.
41 *) Initial experimental support for X9.42 DH parameter format: mainly
42 to support use of 'q' parameter for RFC5114 parameters.
45 *) Add DH parameters from RFC5114 including test data to dhtest.
48 *) Update fips_test_suite to support multiple command line options. New
49 test to induce all self test errors in sequence and check expected
53 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
54 sign or verify all in one operation.
57 *) Add fips_algvs: a multicall fips utility incorporaing all the algorithm
58 test programs and fips_test_suite. Includes functionality to parse
59 the minimal script output of fipsalgest.pl directly.
62 *) Add authorisation parameter to FIPS_module_mode_set().
65 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
68 *) Use separate DRBG fields for internal and external flags. New function
69 FIPS_drbg_health_check() to perform on demand health checking. Add
70 generation tests to fips_test_suite with reduced health check interval to
71 demonstrate periodic health checking. Add "nodh" option to
72 fips_test_suite to skip very slow DH test.
75 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
79 *) More extensive health check for DRBG checking many more failure modes.
80 New function FIPS_selftest_drbg_all() to handle every possible DRBG
81 combination: call this in fips_test_suite.
84 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
85 and POST to handle Dual EC cases.
88 *) Add support for canonical generation of DSA parameter 'g'. See
91 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
92 POST to handle HMAC cases.
95 *) Add functions FIPS_module_version() and FIPS_module_version_text()
96 to return numberical and string versions of the FIPS module number.
99 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
100 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implmeneted
101 outside the validated module in the FIPS capable OpenSSL.
104 *) Minor change to DRBG entropy callback semantics. In some cases
105 there is no mutiple of the block length between min_len and
106 max_len. Allow the callback to return more than max_len bytes
107 of entropy but discard any extra: it is the callback's responsibility
108 to ensure that the extra data discarded does not impact the
109 requested amount of entropy.
112 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
113 information in FIPS186-3, SP800-57 and SP800-131A.
116 *) CCM support via EVP. Interface is very similar to GCM case except we
117 must supply all data in one chunk (i.e. no update, final) and the
118 message length must be supplied if AAD is used. Add algorithm test
122 *) Initial version of POST overhaul. Add POST callback to allow the status
123 of POST to be monitored and/or failures induced. Modify fips_test_suite
124 to use callback. Always run all selftests even if one fails.
127 *) XTS support including algorithm test driver in the fips_gcmtest program.
128 Note: this does increase the maximum key length from 32 to 64 bytes but
129 there should be no binary compatibility issues as existing applications
130 will never use XTS mode.
133 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
134 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
135 performs algorithm blocking for unapproved PRNG types. Also do not
136 set PRNG type in FIPS_mode_set(): leave this to the application.
137 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
138 the standard OpenSSL PRNG: set additional data to a date time vector.
141 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
142 This shouldn't present any incompatibility problems because applications
143 shouldn't be using these directly and any that are will need to rethink
144 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
147 *) Extensive self tests and health checking required by SP800-90 DRBG.
148 Remove strength parameter from FIPS_drbg_instantiate and always
149 instantiate at maximum supported strength.
152 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
155 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
158 *) New function DH_compute_key_padded() to compute a DH key and pad with
159 leading zeroes if needed: this complies with SP800-56A et al.
162 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
163 anything, incomplete, subject to change and largely untested at present.
166 *) Modify fipscanisteronly build option to only build the necessary object
167 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
170 *) Add experimental option FIPSSYMS to give all symbols in
171 fipscanister.o and FIPS or fips prefix. This will avoid
172 conflicts with future versions of OpenSSL. Add perl script
173 util/fipsas.pl to preprocess assembly language source files
174 and rename any affected symbols.
177 *) Add selftest checks and algorithm block of non-fips algorithms in
178 FIPS mode. Remove DES2 from selftests.
181 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
182 return internal method without any ENGINE dependencies. Add new
183 tiny fips sign and verify functions.
186 *) New build option no-ec2m to disable characteristic 2 code.
189 *) New build option "fipscanisteronly". This only builds fipscanister.o
190 and (currently) associated fips utilities. Uses the file Makefile.fips
191 instead of Makefile.org as the prototype.
194 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
195 Update fips_gcmtest to use IV generator.
198 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
199 setting output buffer to NULL. The *Final function must be
200 called although it will not retrieve any additional data. The tag
201 can be set or retrieved with a ctrl. The IV length is by default 12
202 bytes (96 bits) but can be set to an alternative value. If the IV
203 length exceeds the maximum IV length (currently 16 bytes) it cannot be
207 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
208 underlying do_cipher function handles all cipher semantics itself
209 including padding and finalisation. This is useful if (for example)
210 an ENGINE cipher handles block padding itself. The behaviour of
211 do_cipher is subtly changed if this flag is set: the return value
212 is the number of characters written to the output buffer (zero is
213 no longer an error code) or a negative error code. Also if the
214 input buffer is NULL and length 0 finalisation should be performed.
217 *) If a candidate issuer certificate is already part of the constructed
218 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
221 *) Improve forward-security support: add functions
223 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
224 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
226 for use by SSL/TLS servers; the callback function will be called whenever a
227 new session is created, and gets to decide whether the session may be
228 cached to make it resumable (return 0) or not (return 1). (As by the
229 SSL/TLS protocol specifications, the session_id sent by the server will be
230 empty to indicate that the session is not resumable; also, the server will
231 not generate RFC 4507 (RFC 5077) session tickets.)
233 A simple reasonable callback implementation is to return is_forward_secure.
234 This parameter will be set to 1 or 0 depending on the ciphersuite selected
235 by the SSL/TLS server library, indicating whether it can provide forward
237 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
239 *) New function OPENSSL_gmtime_diff to find the difference in days
240 and seconds between two tm structures. This will be used to provide
241 additional functionality for ASN1_TIME.
244 *) Add -trusted_first option which attempts to find certificates in the
245 trusted store even if an untrusted chain is also supplied.
248 *) Initial experimental support for explicitly trusted non-root CAs.
249 OpenSSL still tries to build a complete chain to a root but if an
250 intermediate CA has a trust setting included that is used. The first
251 setting is used: whether to trust or reject.
254 *) New -verify_name option in command line utilities to set verification
258 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
259 Add CMAC pkey methods.
262 *) Experimental regnegotiation in s_server -www mode. If the client
263 browses /reneg connection is renegotiated. If /renegcert it is
264 renegotiated requesting a certificate.
267 *) Add an "external" session cache for debugging purposes to s_server. This
268 should help trace issues which normally are only apparent in deployed
269 multi-process servers.
272 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
273 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
274 BIO_set_cipher() and some obscure PEM functions were changed so they
275 can now return an error. The RAND changes required a change to the
276 RAND_METHOD structure.
279 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
280 a gcc attribute to warn if the result of a function is ignored. This
281 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
282 whose return value is often ignored.
285 Changes between 1.0.0f and 1.0.1 [xx XXX xxxx]
287 *) The format used for MDC2 RSA signatures is inconsistent between EVP
288 and the RSA_sign/RSA_verify functions. This was made more apparent when
289 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
290 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
291 the correct format in RSA_verify so both forms transparently work.
294 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
295 STRING form instead of a DigestInfo.
298 *) Some servers which support TLS 1.0 can choke if we initially indicate
299 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
300 encrypted premaster secret. As a workaround use the maximum pemitted
301 client version in client hello, this should keep such servers happy
302 and still work with previous versions of OpenSSL.
305 *) Add support for TLS/DTLS heartbeats.
306 [Robin Seggelmann <seggelmann@fh-muenster.de>]
308 *) Add support for SCTP.
309 [Robin Seggelmann <seggelmann@fh-muenster.de>]
311 *) Improved PRNG seeding for VOS.
312 [Paul Green <Paul.Green@stratus.com>]
314 *) Extensive assembler packs updates, most notably:
316 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
317 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
318 - x86_64: bit-sliced AES implementation;
319 - ARM: NEON support, contemporary platforms optimizations;
320 - s390x: z196 support;
321 - *: GHASH and GF(2^m) multiplication implementations;
325 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
326 (removal of unnecessary code)
327 [Peter Sylvester <peter.sylvester@edelweb.fr>]
329 *) Add TLS key material exporter from RFC 5705.
332 *) Add DTLS-SRTP negotiation from RFC 5764.
335 *) Add Next Protocol Negotiation,
336 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
337 disabled with a no-npn flag to config or Configure. Code donated
339 [Adam Langley <agl@google.com> and Ben Laurie]
341 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
342 NIST-P256, NIST-P521, with constant-time single point multiplication on
343 typical inputs. Compiler support for the nonstandard type __uint128_t is
344 required to use this (present in gcc 4.4 and later, for 64-bit builds).
345 Code made available under Apache License version 2.0.
347 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
348 line to include this in your build of OpenSSL, and run "make depend" (or
349 "make update"). This enables the following EC_METHODs:
351 EC_GFp_nistp224_method()
352 EC_GFp_nistp256_method()
353 EC_GFp_nistp521_method()
355 EC_GROUP_new_by_curve_name() will automatically use these (while
356 EC_GROUP_new_curve_GFp() currently prefers the more flexible
358 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
360 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
361 all platforms. Move ssize_t definition from e_os.h to the public
362 header file e_os2.h as it now appears in public header file cms.h
365 *) New -sigopt option to the ca, req and x509 utilities. Additional
366 signature parameters can be passed using this option and in
370 *) Add RSA PSS signing function. This will generate and set the
371 appropriate AlgorithmIdentifiers for PSS based on those in the
372 corresponding EVP_MD_CTX structure. No application support yet.
375 *) Support for companion algorithm specific ASN1 signing routines.
376 New function ASN1_item_sign_ctx() signs a pre-initialised
377 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
378 the appropriate parameters.
381 *) Add new algorithm specific ASN1 verification initialisation function
382 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
383 handling will be the same no matter what EVP_PKEY_METHOD is used.
384 Add a PSS handler to support verification of PSS signatures: checked
385 against a number of sample certificates.
388 *) Add signature printing for PSS. Add PSS OIDs.
389 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
391 *) Add algorithm specific signature printing. An individual ASN1 method
392 can now print out signatures instead of the standard hex dump.
394 More complex signatures (e.g. PSS) can print out more meaningful
395 information. Include DSA version that prints out the signature
399 *) Password based recipient info support for CMS library: implementing
403 *) Split password based encryption into PBES2 and PBKDF2 functions. This
404 neatly separates the code into cipher and PBE sections and is required
405 for some algorithms that split PBES2 into separate pieces (such as
409 *) Session-handling fixes:
410 - Fix handling of connections that are resuming with a session ID,
411 but also support Session Tickets.
412 - Fix a bug that suppressed issuing of a new ticket if the client
413 presented a ticket with an expired session.
414 - Try to set the ticket lifetime hint to something reasonable.
415 - Make tickets shorter by excluding irrelevant information.
416 - On the client side, don't ignore renewed tickets.
417 [Adam Langley, Bodo Moeller (Google)]
419 *) Fix PSK session representation.
422 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
424 This work was sponsored by Intel.
427 *) Add GCM support to TLS library. Some custom code is needed to split
428 the IV between the fixed (from PRF) and explicit (from TLS record)
429 portions. This adds all GCM ciphersuites supported by RFC5288 and
430 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
431 add a special AESGCM string for GCM only.
434 *) Expand range of ctrls for AES GCM. Permit setting invocation
435 field on decrypt and retrieval of invocation field only on encrypt.
438 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
439 As required by RFC5289 these ciphersuites cannot be used if for
440 versions of TLS earlier than 1.2.
443 *) For FIPS capable OpenSSL interpret a NULL default public key method
444 as unset and return the appopriate default but do *not* set the default.
445 This means we can return the appopriate method in applications that
446 swicth between FIPS and non-FIPS modes.
449 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
450 ENGINE is used then we cannot handle that in the FIPS module so we
451 keep original code iff non-FIPS operations are allowed.
454 *) Add -attime option to openssl utilities.
455 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
457 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
460 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
461 FIPS EC methods unconditionally for now.
464 *) New build option no-ec2m to disable characteristic 2 code.
467 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
468 all cases can be covered as some introduce binary incompatibilities.
471 *) Redirect RSA operations to FIPS module including keygen,
472 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
475 *) Add similar low level API blocking to ciphers.
478 *) Low level digest APIs are not approved in FIPS mode: any attempt
479 to use these will cause a fatal error. Applications that *really* want
480 to use them can use the private_* version instead.
483 *) Redirect cipher operations to FIPS module for FIPS builds.
486 *) Redirect digest operations to FIPS module for FIPS builds.
489 *) Update build system to add "fips" flag which will link in fipscanister.o
490 for static and shared library builds embedding a signature if needed.
493 *) Output TLS supported curves in preference order instead of numerical
494 order. This is currently hardcoded for the highest order curves first.
495 This should be configurable so applications can judge speed vs strength.
498 *) Add TLS v1.2 server support for client authentication.
501 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
505 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
506 FIPS modules versions.
509 *) Add TLS v1.2 client side support for client authentication. Keep cache
510 of handshake records longer as we don't know the hash algorithm to use
511 until after the certificate request message is received.
514 *) Initial TLS v1.2 client support. Add a default signature algorithms
515 extension including all the algorithms we support. Parse new signature
516 format in client key exchange. Relax some ECC signing restrictions for
517 TLS v1.2 as indicated in RFC5246.
520 *) Add server support for TLS v1.2 signature algorithms extension. Switch
521 to new signature format when needed using client digest preference.
522 All server ciphersuites should now work correctly in TLS v1.2. No client
523 support yet and no support for client certificates.
526 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
527 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
528 ciphersuites. At present only RSA key exchange ciphersuites work with
529 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
530 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
531 and version checking.
534 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
535 with this defined it will not be affected by any changes to ssl internal
536 structures. Add several utility functions to allow openssl application
537 to work with OPENSSL_NO_SSL_INTERN defined.
541 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
543 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
546 *) Permit abbreviated handshakes when renegotiating using the function
547 SSL_renegotiate_abbreviated().
548 [Robin Seggelmann <seggelmann@fh-muenster.de>]
550 *) Add call to ENGINE_register_all_complete() to
551 ENGINE_load_builtin_engines(), so some implementations get used
552 automatically instead of needing explicit application support.
555 *) Add support for TLS key exporter as described in RFC5705.
556 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
558 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
559 a few changes are required:
561 Add SSL_OP_NO_TLSv1_1 flag.
563 Update version checking logic to handle version 1.1.
564 Add explicit IV handling (ported from DTLS code).
565 Add command line options to s_client/s_server.
568 Changes between 1.0.0g and 1.0.0h [xx XXX xxxx]
570 *) Fix CVE-2011-4619: make sure we really are receiving a
571 client hello before rejecting multiple SGC restarts. Thanks to
572 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
575 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
577 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
578 Thanks to Antonio Martin, Enterprise Secure Access Research and
579 Development, Cisco Systems, Inc. for discovering this bug and
580 preparing a fix. (CVE-2012-0050)
583 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
585 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
586 of the Vaudenay padding oracle attack on CBC mode encryption
587 which enables an efficient plaintext recovery attack against
588 the OpenSSL implementation of DTLS. Their attack exploits timing
589 differences arising during decryption processing. A research
590 paper describing this attack can be found at:
591 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
592 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
593 Security Group at Royal Holloway, University of London
594 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
595 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
596 for preparing the fix. (CVE-2011-4108)
597 [Robin Seggelmann, Michael Tuexen]
599 *) Clear bytes used for block padding of SSL 3.0 records.
601 [Adam Langley (Google)]
603 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
604 Kadianakis <desnacked@gmail.com> for discovering this issue and
605 Adam Langley for preparing the fix. (CVE-2011-4619)
606 [Adam Langley (Google)]
608 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
609 [Andrey Kulikov <amdeich@gmail.com>]
611 *) Prevent malformed RFC3779 data triggering an assertion failure.
612 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
613 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
614 [Rob Austein <sra@hactrn.net>]
616 *) Improved PRNG seeding for VOS.
617 [Paul Green <Paul.Green@stratus.com>]
619 *) Fix ssl_ciph.c set-up race.
620 [Adam Langley (Google)]
622 *) Fix spurious failures in ecdsatest.c.
623 [Emilia Käsper (Google)]
625 *) Fix the BIO_f_buffer() implementation (which was mixing different
626 interpretations of the '..._len' fields).
627 [Adam Langley (Google)]
629 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
630 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
631 threads won't reuse the same blinding coefficients.
633 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
634 lock to call BN_BLINDING_invert_ex, and avoids one use of
635 BN_BLINDING_update for each BN_BLINDING structure (previously,
636 the last update always remained unused).
637 [Emilia Käsper (Google)]
639 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
640 [Bob Buckholz (Google)]
642 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
644 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
645 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
646 [Kaspar Brand <ossl@velox.ch>]
648 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
649 for multi-threaded use of ECDH. (CVE-2011-3210)
650 [Adam Langley (Google)]
652 *) Fix x509_name_ex_d2i memory leak on bad inputs.
655 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
656 signature public key algorithm by using OID xref utilities instead.
657 Before this you could only use some ECC ciphersuites with SHA1 only.
660 *) Add protection against ECDSA timing attacks as mentioned in the paper
661 by Billy Bob Brumley and Nicola Tuveri, see:
663 http://eprint.iacr.org/2011/232.pdf
665 [Billy Bob Brumley and Nicola Tuveri]
667 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
669 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
670 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
672 *) Fix bug in string printing code: if *any* escaping is enabled we must
673 escape the escape character (backslash) or the resulting string is
677 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
679 *) Disable code workaround for ancient and obsolete Netscape browsers
680 and servers: an attacker can use it in a ciphersuite downgrade attack.
681 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
684 *) Fixed J-PAKE implementation error, originally discovered by
685 Sebastien Martini, further info and confirmation from Stefan
686 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
689 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
691 *) Fix extension code to avoid race conditions which can result in a buffer
692 overrun vulnerability: resumed sessions must not be modified as they can
693 be shared by multiple threads. CVE-2010-3864
696 *) Fix WIN32 build system to correctly link an ENGINE directory into
700 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
702 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
704 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
706 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
708 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
709 context. The operation can be customised via the ctrl mechanism in
710 case ENGINEs want to include additional functionality.
713 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
716 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
717 output hashes compatible with older versions of OpenSSL.
718 [Willy Weisz <weisz@vcpc.univie.ac.at>]
720 *) Fix compression algorithm handling: if resuming a session use the
721 compression algorithm of the resumed session instead of determining
722 it from client hello again. Don't allow server to change algorithm.
725 *) Add load_crls() function to apps tidying load_certs() too. Add option
726 to verify utility to allow additional CRLs to be included.
729 *) Update OCSP request code to permit adding custom headers to the request:
730 some responders need this.
733 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
735 [Julia Lawall <julia@diku.dk>]
737 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
738 needlessly dereferenced structures, used obsolete functions and
739 didn't handle all updated verify codes correctly.
742 *) Disable MD2 in the default configuration.
745 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
746 indicate the initial BIO being pushed or popped. This makes it possible
747 to determine whether the BIO is the one explicitly called or as a result
748 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
749 it handles reference counts correctly and doesn't zero out the I/O bio
750 when it is not being explicitly popped. WARNING: applications which
751 included workarounds for the old buggy behaviour will need to be modified
752 or they could free up already freed BIOs.
755 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
756 renaming to all platforms (within the 0.9.8 branch, this was
757 done conditionally on Netware platforms to avoid a name clash).
758 [Guenter <lists@gknw.net>]
760 *) Add ECDHE and PSK support to DTLS.
761 [Michael Tuexen <tuexen@fh-muenster.de>]
763 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
767 *) Add "missing" function EVP_MD_flags() (without this the only way to
768 retrieve a digest flags is by accessing the structure directly. Update
769 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
770 or cipher is registered as in the "from" argument. Print out all
771 registered digests in the dgst usage message instead of manually
772 attempting to work them out.
775 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
776 this allows the use of compression and extensions. Change default cipher
777 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
778 by default unless an application cipher string requests it.
781 *) Alter match criteria in PKCS12_parse(). It used to try to use local
782 key ids to find matching certificates and keys but some PKCS#12 files
783 don't follow the (somewhat unwritten) rules and this strategy fails.
784 Now just gather all certificates together and the first private key
785 then look for the first certificate that matches the key.
788 *) Support use of registered digest and cipher names for dgst and cipher
789 commands instead of having to add each one as a special case. So now
796 openssl dgst -sha256 foo
798 and this works for ENGINE based algorithms too.
802 *) Update Gost ENGINE to support parameter files.
803 [Victor B. Wagner <vitus@cryptocom.ru>]
805 *) Support GeneralizedTime in ca utility.
806 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
808 *) Enhance the hash format used for certificate directory links. The new
809 form uses the canonical encoding (meaning equivalent names will work
810 even if they aren't identical) and uses SHA1 instead of MD5. This form
811 is incompatible with the older format and as a result c_rehash should
812 be used to rebuild symbolic links.
815 *) Make PKCS#8 the default write format for private keys, replacing the
816 traditional format. This form is standardised, more secure and doesn't
817 include an implicit MD5 dependency.
820 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
821 committed to OpenSSL should pass this lot as a minimum.
824 *) Add session ticket override functionality for use by EAP-FAST.
825 [Jouni Malinen <j@w1.fi>]
827 *) Modify HMAC functions to return a value. Since these can be implemented
828 in an ENGINE errors can occur.
831 *) Type-checked OBJ_bsearch_ex.
834 *) Type-checked OBJ_bsearch. Also some constification necessitated
835 by type-checking. Still to come: TXT_DB, bsearch(?),
836 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
840 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
841 seconds to a tm structure directly, instead of going through OS
842 specific date routines. This avoids any issues with OS routines such
843 as the year 2038 bug. New *_adj() functions for ASN1 time structures
844 and X509_time_adj_ex() to cover the extended range. The existing
845 X509_time_adj() is still usable and will no longer have any date issues.
848 *) Delta CRL support. New use deltas option which will attempt to locate
849 and search any appropriate delta CRLs available.
851 This work was sponsored by Google.
854 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
855 code and add additional score elements. Validate alternate CRL paths
856 as part of the CRL checking and indicate a new error "CRL path validation
857 error" in this case. Applications wanting additional details can use
858 the verify callback and check the new "parent" field. If this is not
859 NULL CRL path validation is taking place. Existing applications wont
860 see this because it requires extended CRL support which is off by
863 This work was sponsored by Google.
866 *) Support for freshest CRL extension.
868 This work was sponsored by Google.
871 *) Initial indirect CRL support. Currently only supported in the CRLs
872 passed directly and not via lookup. Process certificate issuer
873 CRL entry extension and lookup CRL entries by bother issuer name
874 and serial number. Check and process CRL issuer entry in IDP extension.
876 This work was sponsored by Google.
879 *) Add support for distinct certificate and CRL paths. The CRL issuer
880 certificate is validated separately in this case. Only enabled if
881 an extended CRL support flag is set: this flag will enable additional
882 CRL functionality in future.
884 This work was sponsored by Google.
887 *) Add support for policy mappings extension.
889 This work was sponsored by Google.
892 *) Fixes to pathlength constraint, self issued certificate handling,
893 policy processing to align with RFC3280 and PKITS tests.
895 This work was sponsored by Google.
898 *) Support for name constraints certificate extension. DN, email, DNS
899 and URI types are currently supported.
901 This work was sponsored by Google.
904 *) To cater for systems that provide a pointer-based thread ID rather
905 than numeric, deprecate the current numeric thread ID mechanism and
906 replace it with a structure and associated callback type. This
907 mechanism allows a numeric "hash" to be extracted from a thread ID in
908 either case, and on platforms where pointers are larger than 'long',
909 mixing is done to help ensure the numeric 'hash' is usable even if it
910 can't be guaranteed unique. The default mechanism is to use "&errno"
911 as a pointer-based thread ID to distinguish between threads.
913 Applications that want to provide their own thread IDs should now use
914 CRYPTO_THREADID_set_callback() to register a callback that will call
915 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
917 Note that ERR_remove_state() is now deprecated, because it is tied
918 to the assumption that thread IDs are numeric. ERR_remove_state(0)
919 to free the current thread's error state should be replaced by
920 ERR_remove_thread_state(NULL).
922 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
923 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
924 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
925 application was previously providing a numeric thread callback that
926 was inappropriate for distinguishing threads, then uniqueness might
927 have been obtained with &errno that happened immediately in the
928 intermediate development versions of OpenSSL; this is no longer the
929 case, the numeric thread callback will now override the automatic use
931 [Geoff Thorpe, with help from Bodo Moeller]
933 *) Initial support for different CRL issuing certificates. This covers a
934 simple case where the self issued certificates in the chain exist and
935 the real CRL issuer is higher in the existing chain.
937 This work was sponsored by Google.
940 *) Removed effectively defunct crypto/store from the build.
943 *) Revamp of STACK to provide stronger type-checking. Still to come:
944 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
945 ASN1_STRING, CONF_VALUE.
948 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
949 RAM on SSL connections. This option can save about 34k per idle SSL.
952 *) Revamp of LHASH to provide stronger type-checking. Still to come:
953 STACK, TXT_DB, bsearch, qsort.
956 *) Initial support for Cryptographic Message Syntax (aka CMS) based
957 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
958 support for data, signedData, compressedData, digestedData and
959 encryptedData, envelopedData types included. Scripts to check against
960 RFC4134 examples draft and interop and consistency checks of many
961 content types and variants.
964 *) Add options to enc utility to support use of zlib compression BIO.
967 *) Extend mk1mf to support importing of options and assembly language
968 files from Configure script, currently only included in VC-WIN32.
969 The assembly language rules can now optionally generate the source
970 files from the associated perl scripts.
973 *) Implement remaining functionality needed to support GOST ciphersuites.
974 Interop testing has been performed using CryptoPro implementations.
975 [Victor B. Wagner <vitus@cryptocom.ru>]
977 *) s390x assembler pack.
980 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
984 *) Implement Opaque PRF Input TLS extension as specified in
985 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
986 official specification yet and no extension type assignment by
987 IANA exists, this extension (for now) will have to be explicitly
988 enabled when building OpenSSL by providing the extension number
989 to use. For example, specify an option
991 -DTLSEXT_TYPE_opaque_prf_input=0x9527
993 to the "config" or "Configure" script to enable the extension,
994 assuming extension number 0x9527 (which is a completely arbitrary
995 and unofficial assignment based on the MD5 hash of the Internet
996 Draft). Note that by doing so, you potentially lose
997 interoperability with other TLS implementations since these might
998 be using the same extension number for other purposes.
1000 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1001 opaque PRF input value to use in the handshake. This will create
1002 an interal copy of the length-'len' string at 'src', and will
1003 return non-zero for success.
1005 To get more control and flexibility, provide a callback function
1008 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1009 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1013 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1016 Callback function 'cb' will be called in handshakes, and is
1017 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1018 Argument 'arg' is for application purposes (the value as given to
1019 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1020 be provided to the callback function). The callback function
1021 has to return non-zero to report success: usually 1 to use opaque
1022 PRF input just if possible, or 2 to enforce use of the opaque PRF
1023 input. In the latter case, the library will abort the handshake
1024 if opaque PRF input is not successfully negotiated.
1026 Arguments 'peerinput' and 'len' given to the callback function
1027 will always be NULL and 0 in the case of a client. A server will
1028 see the client's opaque PRF input through these variables if
1029 available (NULL and 0 otherwise). Note that if the server
1030 provides an opaque PRF input, the length must be the same as the
1031 length of the client's opaque PRF input.
1033 Note that the callback function will only be called when creating
1034 a new session (session resumption can resume whatever was
1035 previously negotiated), and will not be called in SSL 2.0
1036 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1037 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1038 for applications that need to enforce opaque PRF input.
1042 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1045 [Victor B. Wagner <vitus@cryptocom.ru>]
1047 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1048 RFC4507bis. The encrypted ticket format is an encrypted encoded
1049 SSL_SESSION structure, that way new session features are automatically
1052 If a client application caches session in an SSL_SESSION structure
1053 support is transparent because tickets are now stored in the encoded
1056 The SSL_CTX structure automatically generates keys for ticket
1057 protection in servers so again support should be possible
1058 with no application modification.
1060 If a client or server wishes to disable RFC4507 support then the option
1061 SSL_OP_NO_TICKET can be set.
1063 Add a TLS extension debugging callback to allow the contents of any client
1064 or server extensions to be examined.
1066 This work was sponsored by Google.
1069 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1070 OpenSSL should now compile cleanly on gcc 4.2
1071 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1073 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1074 support including streaming MAC support: this is required for GOST
1075 ciphersuite support.
1076 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1078 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1079 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1080 to output in BER and PEM format.
1083 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1084 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1085 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1086 ENGINE support for HMAC keys which are unextractable. New -mac and
1087 -macopt options to dgst utility.
1090 *) New option -sigopt to dgst utility. Update dgst to use
1091 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1092 alternative signing paramaters such as X9.31 or PSS in the dgst
1096 *) Change ssl_cipher_apply_rule(), the internal function that does
1097 the work each time a ciphersuite string requests enabling
1098 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1099 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1100 the order of disabled ciphersuites such that those ciphersuites
1101 that most recently went from enabled to disabled not only stay
1102 in order with respect to each other, but also have higher priority
1103 than other disabled ciphersuites the next time ciphersuites are
1106 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1107 the same ciphersuites as with "HIGH" alone, but in a specific
1108 order where the PSK ciphersuites come first (since they are the
1109 most recently disabled ciphersuites when "HIGH" is parsed).
1111 Also, change ssl_create_cipher_list() (using this new
1112 funcionality) such that between otherwise identical
1113 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1117 *) Change ssl_create_cipher_list() so that it automatically
1118 arranges the ciphersuites in reasonable order before starting
1119 to process the rule string. Thus, the definition for "DEFAULT"
1120 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1121 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1122 This makes it much easier to arrive at a reasonable default order
1123 in applications for which anonymous ciphers are OK (meaning
1124 that you can't actually use DEFAULT).
1125 [Bodo Moeller; suggested by Victor Duchovni]
1127 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1128 processing) into multiple integers instead of setting
1129 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1130 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1131 (These masks as well as the individual bit definitions are hidden
1132 away into the non-exported interface ssl/ssl_locl.h, so this
1133 change to the definition of the SSL_CIPHER structure shouldn't
1134 affect applications.) This give us more bits for each of these
1135 categories, so there is no longer a need to coagulate AES128 and
1136 AES256 into a single algorithm bit, and to coagulate Camellia128
1137 and Camellia256 into a single algorithm bit, which has led to all
1140 Thus, among other things, the kludge introduced in 0.9.7m and
1141 0.9.8e for masking out AES256 independently of AES128 or masking
1142 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1144 With the change, we also introduce new ciphersuite aliases that
1145 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1149 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1150 Use the leftmost N bytes of the signature input if the input is
1151 larger than the prime q (with N being the size in bytes of q).
1154 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1155 it yet and it is largely untested.
1158 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1161 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1162 some compilers (gcc 4.2 and later) reject their use. Safestack is
1163 reimplemented. Update ASN1 to avoid use of legacy functions.
1166 *) Win32/64 targets are linked with Winsock2.
1169 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1170 to external functions. This can be used to increase CRL handling
1171 efficiency especially when CRLs are very large by (for example) storing
1172 the CRL revoked certificates in a database.
1175 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1176 new CRLs added to a directory can be used. New command line option
1177 -verify_return_error to s_client and s_server. This causes real errors
1178 to be returned by the verify callback instead of carrying on no matter
1179 what. This reflects the way a "real world" verify callback would behave.
1182 *) GOST engine, supporting several GOST algorithms and public key formats.
1183 Kindly donated by Cryptocom.
1186 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1187 partitioned by DP are handled but no indirect CRL or reason partitioning
1188 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1189 selected via a scoring technique which handles IDP and AKID in CRLs.
1192 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1193 will ultimately be used for all verify operations: this will remove the
1194 X509_STORE dependency on certificate verification and allow alternative
1195 lookup methods. X509_STORE based implementations of these two callbacks.
1198 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1199 Modify get_crl() to find a valid (unexpired) CRL if possible.
1202 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1203 this would be called X509_CRL_cmp() but that name is already used by
1204 a function that just compares CRL issuer names. Cache several CRL
1205 extensions in X509_CRL structure and cache CRLDP in X509.
1208 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1209 this maps equivalent X509_NAME structures into a consistent structure.
1210 Name comparison can then be performed rapidly using memcmp().
1213 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1217 *) Allow digests to supply their own micalg string for S/MIME type using
1218 the ctrl EVP_MD_CTRL_MICALG.
1221 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1222 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1223 ctrl. It can then customise the structure before and/or after signing
1227 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1228 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1229 to free up any added signature OIDs.
1232 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1233 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1234 digest and cipher tables. New options added to openssl utility:
1235 list-message-digest-algorithms and list-cipher-algorithms.
1238 *) Change the array representation of binary polynomials: the list
1239 of degrees of non-zero coefficients is now terminated with -1.
1240 Previously it was terminated with 0, which was also part of the
1241 value; thus, the array representation was not applicable to
1242 polynomials where t^0 has coefficient zero. This change makes
1243 the array representation useful in a more general context.
1246 *) Various modifications and fixes to SSL/TLS cipher string
1247 handling. For ECC, the code now distinguishes between fixed ECDH
1248 with RSA certificates on the one hand and with ECDSA certificates
1249 on the other hand, since these are separate ciphersuites. The
1250 unused code for Fortezza ciphersuites has been removed.
1252 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1253 (not "ECDHE"). For consistency with the code for DH
1254 certificates, use of ECDH certificates is now considered ECDH
1255 authentication, not RSA or ECDSA authentication (the latter is
1256 merely the CA's signing algorithm and not actively used in the
1259 The temporary ciphersuite alias "ECCdraft" is no longer
1260 available, and ECC ciphersuites are no longer excluded from "ALL"
1261 and "DEFAULT". The following aliases now exist for RFC 4492
1262 ciphersuites, most of these by analogy with the DH case:
1264 kECDHr - ECDH cert, signed with RSA
1265 kECDHe - ECDH cert, signed with ECDSA
1266 kECDH - ECDH cert (signed with either RSA or ECDSA)
1267 kEECDH - ephemeral ECDH
1268 ECDH - ECDH cert or ephemeral ECDH
1274 AECDH - anonymous ECDH
1275 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1279 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1280 Use correct micalg parameters depending on digest(s) in signed message.
1283 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1284 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1287 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1288 an engine to register a method. Add ENGINE lookups for methods and
1289 functional reference processing.
1292 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1293 EVP_{Sign,Verify}* which allow an application to customise the signature
1297 *) New -resign option to smime utility. This adds one or more signers
1298 to an existing PKCS#7 signedData structure. Also -md option to use an
1299 alternative message digest algorithm for signing.
1302 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1303 create PKCS7 structures containing multiple signers. Update smime
1304 application to support multiple signers.
1307 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1311 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1312 Reorganize PBE internals to lookup from a static table using NIDs,
1313 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1314 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1315 PRF which will be automatically used with PBES2.
1318 *) Replace the algorithm specific calls to generate keys in "req" with the
1322 *) Update PKCS#7 enveloped data routines to use new API. This is now
1323 supported by any public key method supporting the encrypt operation. A
1324 ctrl is added to allow the public key algorithm to examine or modify
1325 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1329 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1330 a default digest type to use. In most cases this will be SHA1 but some
1331 algorithms (such as GOST) need to specify an alternative digest. The
1332 return value indicates how strong the prefernce is 1 means optional and
1333 2 is mandatory (that is it is the only supported type). Modify
1334 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1335 use the default md. Update openssl utilities to use the default digest
1336 type for signing if it is not explicitly indicated.
1339 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1340 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1341 signing method from the key type. This effectively removes the link
1342 between digests and public key types.
1345 *) Add an OID cross reference table and utility functions. Its purpose is to
1346 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1347 rsaEncryption. This will allow some of the algorithm specific hackery
1348 needed to use the correct OID to be removed.
1351 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1352 structures for PKCS7_sign(). They are now set up by the relevant public
1356 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1359 *) Add support for key derivation (agreement) in the API, DH method and
1363 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1364 public and private key formats. As a side effect these add additional
1365 command line functionality not previously available: DSA signatures can be
1366 generated and verified using pkeyutl and DH key support and generation in
1371 [Oliver Tappe <zooey@hirschkaefer.de>]
1373 *) New make target "install_html_docs" installs HTML renditions of the
1375 [Oliver Tappe <zooey@hirschkaefer.de>]
1377 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1378 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1379 support key and parameter generation and add initial key generation
1380 functionality for RSA.
1383 *) Add functions for main EVP_PKEY_method operations. The undocumented
1384 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1385 EVP_PKEY_{encrypt,decrypt}_old.
1388 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1389 key API, doesn't do much yet.
1392 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1393 public key algorithms. New option to openssl utility:
1394 "list-public-key-algorithms" to print out info.
1397 *) Implement the Supported Elliptic Curves Extension for
1398 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1401 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1402 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1405 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1406 utilities such as rsa, dsa, dsaparam etc except they process any key
1410 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1411 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1412 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1416 *) Initial support for pluggable public key ASN1.
1417 De-spaghettify the public key ASN1 handling. Move public and private
1418 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1419 algorithm specific handling to a single module within the relevant
1420 algorithm directory. Add functions to allow (near) opaque processing
1421 of public and private key structures.
1424 *) Implement the Supported Point Formats Extension for
1425 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1428 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1429 for the psk identity [hint] and the psk callback functions to the
1430 SSL_SESSION, SSL and SSL_CTX structure.
1433 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1437 SSL_CTX_use_psk_identity_hint
1438 SSL_get_psk_identity_hint
1439 SSL_get_psk_identity
1440 SSL_use_psk_identity_hint
1442 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1444 *) Add RFC 3161 compliant time stamp request creation, response generation
1445 and response verification functionality.
1446 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1448 *) Add initial support for TLS extensions, specifically for the server_name
1449 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1450 have new members for a host name. The SSL data structure has an
1451 additional member SSL_CTX *initial_ctx so that new sessions can be
1452 stored in that context to allow for session resumption, even after the
1453 SSL has been switched to a new SSL_CTX in reaction to a client's
1454 server_name extension.
1456 New functions (subject to change):
1458 SSL_get_servername()
1459 SSL_get_servername_type()
1462 New CTRL codes and macros (subject to change):
1464 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1465 - SSL_CTX_set_tlsext_servername_callback()
1466 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1467 - SSL_CTX_set_tlsext_servername_arg()
1468 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1470 openssl s_client has a new '-servername ...' option.
1472 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1473 '-key2 ...', '-servername_fatal' (subject to change). This allows
1474 testing the HostName extension for a specific single host name ('-cert'
1475 and '-key' remain fallbacks for handshakes without HostName
1476 negotiation). If the unrecogninzed_name alert has to be sent, this by
1477 default is a warning; it becomes fatal with the '-servername_fatal'
1480 [Peter Sylvester, Remy Allais, Christophe Renou]
1482 *) Whirlpool hash implementation is added.
1485 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1486 bn(64,32). Because of instruction set limitations it doesn't have
1487 any negative impact on performance. This was done mostly in order
1488 to make it possible to share assembler modules, such as bn_mul_mont
1489 implementations, between 32- and 64-bit builds without hassle.
1492 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1493 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1497 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1498 dedicated Montgomery multiplication procedure, is introduced.
1499 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1500 "64-bit" performance on certain 32-bit targets.
1503 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1504 in SSL structures. New SSL ctrl to set maximum send fragment size.
1505 Save memory by seeting the I/O buffer sizes dynamically instead of
1506 using the maximum available value.
1509 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1510 in addition to the text details.
1513 *) Very, very preliminary EXPERIMENTAL support for printing of general
1514 ASN1 structures. This currently produces rather ugly output and doesn't
1515 handle several customised structures at all.
1518 *) Integrated support for PVK file format and some related formats such
1519 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1520 these in the 'rsa' and 'dsa' utilities.
1523 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1526 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1527 place for the (very old) "NETSCAPE" format certificates which are now
1528 handled using new ASN1 code equivalents.
1531 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1532 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1533 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1536 *) Modify CRL distribution points extension code to print out previously
1537 unsupported fields. Enhance extension setting code to allow setting of
1541 *) Add print and set support for Issuing Distribution Point CRL extension.
1544 *) Change 'Configure' script to enable Camellia by default.
1547 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1549 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1550 Thanks to Antonio Martin, Enterprise Secure Access Research and
1551 Development, Cisco Systems, Inc. for discovering this bug and
1552 preparing a fix. (CVE-2012-0050)
1555 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1557 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1558 of the Vaudenay padding oracle attack on CBC mode encryption
1559 which enables an efficient plaintext recovery attack against
1560 the OpenSSL implementation of DTLS. Their attack exploits timing
1561 differences arising during decryption processing. A research
1562 paper describing this attack can be found at:
1563 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1564 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1565 Security Group at Royal Holloway, University of London
1566 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1567 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1568 for preparing the fix. (CVE-2011-4108)
1569 [Robin Seggelmann, Michael Tuexen]
1571 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1572 [Ben Laurie, Kasper <ekasper@google.com>]
1574 *) Clear bytes used for block padding of SSL 3.0 records.
1576 [Adam Langley (Google)]
1578 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1579 Kadianakis <desnacked@gmail.com> for discovering this issue and
1580 Adam Langley for preparing the fix. (CVE-2011-4619)
1581 [Adam Langley (Google)]
1583 *) Prevent malformed RFC3779 data triggering an assertion failure.
1584 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1585 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1586 [Rob Austein <sra@hactrn.net>]
1588 *) Fix ssl_ciph.c set-up race.
1589 [Adam Langley (Google)]
1591 *) Fix spurious failures in ecdsatest.c.
1592 [Emilia Käsper (Google)]
1594 *) Fix the BIO_f_buffer() implementation (which was mixing different
1595 interpretations of the '..._len' fields).
1596 [Adam Langley (Google)]
1598 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1599 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1600 threads won't reuse the same blinding coefficients.
1602 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1603 lock to call BN_BLINDING_invert_ex, and avoids one use of
1604 BN_BLINDING_update for each BN_BLINDING structure (previously,
1605 the last update always remained unused).
1606 [Emilia Käsper (Google)]
1608 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1609 for multi-threaded use of ECDH.
1610 [Adam Langley (Google)]
1612 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1615 *) Add protection against ECDSA timing attacks as mentioned in the paper
1616 by Billy Bob Brumley and Nicola Tuveri, see:
1618 http://eprint.iacr.org/2011/232.pdf
1620 [Billy Bob Brumley and Nicola Tuveri]
1622 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1624 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1625 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1627 *) Fix bug in string printing code: if *any* escaping is enabled we must
1628 escape the escape character (backslash) or the resulting string is
1632 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1634 *) Disable code workaround for ancient and obsolete Netscape browsers
1635 and servers: an attacker can use it in a ciphersuite downgrade attack.
1636 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1639 *) Fixed J-PAKE implementation error, originally discovered by
1640 Sebastien Martini, further info and confirmation from Stefan
1641 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1644 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1646 *) Fix extension code to avoid race conditions which can result in a buffer
1647 overrun vulnerability: resumed sessions must not be modified as they can
1648 be shared by multiple threads. CVE-2010-3864
1651 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1654 *) Don't reencode certificate when calculating signature: cache and use
1655 the original encoding instead. This makes signature verification of
1656 some broken encodings work correctly.
1659 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1660 is also one of the inputs.
1661 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1663 *) Don't repeatedly append PBE algorithms to table if they already exist.
1664 Sort table on each new add. This effectively makes the table read only
1665 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1669 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1671 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1674 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1675 access or freeing data twice (CVE-2010-0742)
1676 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1678 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1679 common in certificates and some applications which only call
1680 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1684 Reduce copying into .apps and .test in makevms.com
1685 Don't try to use blank CA certificate in CA.com
1686 Allow use of C files from original directories in maketests.com
1687 [Steven M. Schweda" <sms@antinode.info>]
1689 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1691 *) When rejecting SSL/TLS records due to an incorrect version number, never
1692 update s->server with a new major version number. As of
1693 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1694 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1695 the previous behavior could result in a read attempt at NULL when
1696 receiving specific incorrect SSL/TLS records once record payload
1697 protection is active. (CVE-2010-0740)
1698 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1700 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1701 could be crashed if the relevant tables were not present (e.g. chrooted).
1702 [Tomas Hoger <thoger@redhat.com>]
1704 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1706 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1707 [Martin Olsson, Neel Mehta]
1709 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1710 accommodate for stack sorting, always a write lock!).
1713 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1714 excessive delays in the RAND_poll(): over a minute. As a workaround
1715 include a time check in the inner Heap32Next loop too.
1718 *) The code that handled flushing of data in SSL/TLS originally used the
1719 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1720 the problem outlined in PR#1949. The fix suggested there however can
1721 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1722 of Apache). So instead simplify the code to flush unconditionally.
1723 This should be fine since flushing with no data to flush is a no op.
1726 *) Handle TLS versions 2.0 and later properly and correctly use the
1727 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1728 off ancient servers have a habit of sticking around for a while...
1731 *) Modify compression code so it frees up structures without using the
1732 ex_data callbacks. This works around a problem where some applications
1733 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1734 restarting) then use compression (e.g. SSL with compression) later.
1735 This results in significant per-connection memory leaks and
1736 has caused some security issues including CVE-2008-1678 and
1740 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1741 change when encrypting or decrypting.
1744 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1745 connect and renegotiate with servers which do not support RI.
1746 Until RI is more widely deployed this option is enabled by default.
1749 *) Add "missing" ssl ctrls to clear options and mode.
1752 *) If client attempts to renegotiate and doesn't support RI respond with
1753 a no_renegotiation alert as required by RFC5746. Some renegotiating
1754 TLS clients will continue a connection gracefully when they receive
1755 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1756 waiting for a server hello which it will never receive. Now we treat a
1757 received no_renegotiation alert as a fatal error. This is because
1758 applications requesting a renegotiation might well expect it to succeed
1759 and would have no code in place to handle the server denying it so the
1760 only safe thing to do is to terminate the connection.
1763 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1764 peer supports secure renegotiation and 0 otherwise. Print out peer
1765 renegotiation support in s_client/s_server.
1768 *) Replace the highly broken and deprecated SPKAC certification method with
1769 the updated NID creation version. This should correctly handle UTF8.
1772 *) Implement RFC5746. Re-enable renegotiation but require the extension
1773 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1774 turns out to be a bad idea. It has been replaced by
1775 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1776 SSL_CTX_set_options(). This is really not recommended unless you
1777 know what you are doing.
1778 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1780 *) Fixes to stateless session resumption handling. Use initial_ctx when
1781 issuing and attempting to decrypt tickets in case it has changed during
1782 servername handling. Use a non-zero length session ID when attempting
1783 stateless session resumption: this makes it possible to determine if
1784 a resumption has occurred immediately after receiving server hello
1785 (several places in OpenSSL subtly assume this) instead of later in
1789 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1790 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1791 fixes for a few places where the return code is not checked
1793 [Julia Lawall <julia@diku.dk>]
1795 *) Add --strict-warnings option to Configure script to include devteam
1796 warnings in other configurations.
1799 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1800 makes it possible to install openssl libraries in locations which
1801 have names other than "lib", for example "/usr/lib64" which some
1803 [Steve Henson, based on patch from Jeremy Utley]
1805 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1806 X690 8.9.12 and can produce some misleading textual output of OIDs.
1807 [Steve Henson, reported by Dan Kaminsky]
1809 *) Delete MD2 from algorithm tables. This follows the recommendation in
1810 several standards that it is not used in new applications due to
1811 several cryptographic weaknesses. For binary compatibility reasons
1812 the MD2 API is still compiled in by default.
1815 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1819 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1820 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1822 [Guenter <lists@gknw.net>]
1824 *) Fix the server certificate chain building code to use X509_verify_cert(),
1825 it used to have an ad-hoc builder which was unable to cope with anything
1826 other than a simple chain.
1827 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1829 *) Don't check self signed certificate signatures in X509_verify_cert()
1830 by default (a flag can override this): it just wastes time without
1831 adding any security. As a useful side effect self signed root CAs
1832 with non-FIPS digests are now usable in FIPS mode.
1835 *) In dtls1_process_out_of_seq_message() the check if the current message
1836 is already buffered was missing. For every new message was memory
1837 allocated, allowing an attacker to perform an denial of service attack
1838 with sending out of seq handshake messages until there is no memory
1839 left. Additionally every future messege was buffered, even if the
1840 sequence number made no sense and would be part of another handshake.
1841 So only messages with sequence numbers less than 10 in advance will be
1842 buffered. (CVE-2009-1378)
1843 [Robin Seggelmann, discovered by Daniel Mentz]
1845 *) Records are buffered if they arrive with a future epoch to be
1846 processed after finishing the corresponding handshake. There is
1847 currently no limitation to this buffer allowing an attacker to perform
1848 a DOS attack with sending records with future epochs until there is no
1849 memory left. This patch adds the pqueue_size() function to detemine
1850 the size of a buffer and limits the record buffer to 100 entries.
1852 [Robin Seggelmann, discovered by Daniel Mentz]
1854 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1855 parent structure is freed. (CVE-2009-1379)
1858 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1859 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1862 [Ilya O. <vrghost@gmail.com>]
1864 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1866 *) Disable renegotiation completely - this fixes a severe security
1867 problem (CVE-2009-3555) at the cost of breaking all
1868 renegotiation. Renegotiation can be re-enabled by setting
1869 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1870 run-time. This is really not recommended unless you know what
1874 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1876 *) Don't set val to NULL when freeing up structures, it is freed up by
1877 underlying code. If sizeof(void *) > sizeof(long) this can result in
1878 zeroing past the valid field. (CVE-2009-0789)
1879 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1881 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1882 checked correctly. This would allow some invalid signed attributes to
1883 appear to verify correctly. (CVE-2009-0591)
1884 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1886 *) Reject UniversalString and BMPString types with invalid lengths. This
1887 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1888 a legal length. (CVE-2009-0590)
1891 *) Set S/MIME signing as the default purpose rather than setting it
1892 unconditionally. This allows applications to override it at the store
1896 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1897 to handle some structures.
1900 *) Improve efficiency of mem_gets: don't search whole buffer each time
1902 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1904 *) New -hex option for openssl rand.
1907 *) Print out UTF8String and NumericString when parsing ASN1.
1910 *) Support NumericString type for name components.
1913 *) Allow CC in the environment to override the automatically chosen
1914 compiler. Note that nothing is done to ensure flags work with the
1918 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1920 *) Properly check EVP_VerifyFinal() and similar return values
1922 [Ben Laurie, Bodo Moeller, Google Security Team]
1924 *) Enable TLS extensions by default.
1927 *) Allow the CHIL engine to be loaded, whether the application is
1928 multithreaded or not. (This does not release the developer from the
1929 obligation to set up the dynamic locking callbacks.)
1930 [Sander Temme <sander@temme.net>]
1932 *) Use correct exit code if there is an error in dgst command.
1933 [Steve Henson; problem pointed out by Roland Dirlewanger]
1935 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1936 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1939 *) Add experimental JPAKE support, including demo authentication in
1940 s_client and s_server.
1943 *) Set the comparison function in v3_addr_canonize().
1944 [Rob Austein <sra@hactrn.net>]
1946 *) Add support for XMPP STARTTLS in s_client.
1947 [Philip Paeps <philip@freebsd.org>]
1949 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1950 to ensure that even with this option, only ciphersuites in the
1951 server's preference list will be accepted. (Note that the option
1952 applies only when resuming a session, so the earlier behavior was
1953 just about the algorithm choice for symmetric cryptography.)
1956 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1958 *) Fix NULL pointer dereference if a DTLS server received
1959 ChangeCipherSpec as first record (CVE-2009-1386).
1962 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1963 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1966 *) The fix in 0.9.8c that supposedly got rid of unsafe
1967 double-checked locking was incomplete for RSA blinding,
1968 addressing just one layer of what turns out to have been
1969 doubly unsafe triple-checked locking.
1971 So now fix this for real by retiring the MONT_HELPER macro
1972 in crypto/rsa/rsa_eay.c.
1974 [Bodo Moeller; problem pointed out by Marius Schilder]
1976 *) Various precautionary measures:
1978 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1980 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1981 (NB: This would require knowledge of the secret session ticket key
1982 to exploit, in which case you'd be SOL either way.)
1984 - Change bn_nist.c so that it will properly handle input BIGNUMs
1985 outside the expected range.
1987 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1990 [Neel Mehta, Bodo Moeller]
1992 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1993 the load fails. Useful for distros.
1994 [Ben Laurie and the FreeBSD team]
1996 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1999 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2002 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2004 This work was sponsored by Logica.
2007 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2008 keystores. Support for SSL/TLS client authentication too.
2009 Not compiled unless enable-capieng specified to Configure.
2011 This work was sponsored by Logica.
2014 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2015 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2016 attribute creation routines such as certifcate requests and PKCS#12
2020 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2022 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2023 handshake which could lead to a cilent crash as found using the
2024 Codenomicon TLS test suite (CVE-2008-1672)
2025 [Steve Henson, Mark Cox]
2027 *) Fix double free in TLS server name extensions which could lead to
2028 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2031 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2033 Clear the error queue to ensure that error entries left from
2034 older function calls do not interfere with the correct operation.
2035 [Lutz Jaenicke, Erik de Castro Lopo]
2037 *) Remove root CA certificates of commercial CAs:
2039 The OpenSSL project does not recommend any specific CA and does not
2040 have any policy with respect to including or excluding any CA.
2041 Therefore it does not make any sense to ship an arbitrary selection
2042 of root CA certificates with the OpenSSL software.
2045 *) RSA OAEP patches to fix two separate invalid memory reads.
2046 The first one involves inputs when 'lzero' is greater than
2047 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2048 before the beginning of from). The second one involves inputs where
2049 the 'db' section contains nothing but zeroes (there is a one-byte
2050 invalid read after the end of 'db').
2051 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2053 *) Partial backport from 0.9.9-dev:
2055 Introduce bn_mul_mont (dedicated Montgomery multiplication
2056 procedure) as a candidate for BIGNUM assembler implementation.
2057 While 0.9.9-dev uses assembler for various architectures, only
2058 x86_64 is available by default here in the 0.9.8 branch, and
2059 32-bit x86 is available through a compile-time setting.
2061 To try the 32-bit x86 assembler implementation, use Configure
2062 option "enable-montasm" (which exists only for this backport).
2064 As "enable-montasm" for 32-bit x86 disclaims code stability
2065 anyway, in this constellation we activate additional code
2066 backported from 0.9.9-dev for further performance improvements,
2067 namely BN_from_montgomery_word. (To enable this otherwise,
2068 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2070 [Andy Polyakov (backport partially by Bodo Moeller)]
2072 *) Add TLS session ticket callback. This allows an application to set
2073 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2074 values. This is useful for key rollover for example where several key
2075 sets may exist with different names.
2078 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2079 This was broken until now in 0.9.8 releases, such that the only way
2080 a registered ENGINE could be used (assuming it initialises
2081 successfully on the host) was to explicitly set it as the default
2082 for the relevant algorithms. This is in contradiction with 0.9.7
2083 behaviour and the documentation. With this fix, when an ENGINE is
2084 registered into a given algorithm's table of implementations, the
2085 'uptodate' flag is reset so that auto-discovery will be used next
2086 time a new context for that algorithm attempts to select an
2088 [Ian Lister (tweaked by Geoff Thorpe)]
2090 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2091 implemention in the following ways:
2093 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2096 Lack of BER streaming support means one pass streaming processing is
2097 only supported if data is detached: setting the streaming flag is
2098 ignored for embedded content.
2100 CMS support is disabled by default and must be explicitly enabled
2101 with the enable-cms configuration option.
2104 *) Update the GMP engine glue to do direct copies between BIGNUM and
2105 mpz_t when openssl and GMP use the same limb size. Otherwise the
2106 existing "conversion via a text string export" trick is still used.
2107 [Paul Sheer <paulsheer@gmail.com>]
2109 *) Zlib compression BIO. This is a filter BIO which compressed and
2110 uncompresses any data passed through it.
2113 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2114 RFC3394 compatible AES key wrapping.
2117 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2118 sets string data without copying. X509_ALGOR_set0() and
2119 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2120 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2121 from an X509_ATTRIBUTE structure optionally checking it occurs only
2122 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2126 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2127 to get the expected BN_FLG_CONSTTIME behavior.
2128 [Bodo Moeller (Google)]
2132 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2133 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2134 - added some more tests to do_tests.pl
2135 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2136 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2137 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2138 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2139 - various changes to netware.pl to enable gcc-cross builds on Win32
2141 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2142 - various changes to fix missing prototype warnings
2143 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2144 - added AES, WHIRLPOOL and CPUID assembler code to build files
2145 - added missing AES assembler make rules to mk1mf.pl
2146 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2147 [Guenter Knauf <eflash@gmx.net>]
2149 *) Implement certificate status request TLS extension defined in RFC3546.
2150 A client can set the appropriate parameters and receive the encoded
2151 OCSP response via a callback. A server can query the supplied parameters
2152 and set the encoded OCSP response in the callback. Add simplified examples
2153 to s_client and s_server.
2156 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2158 *) Fix various bugs:
2159 + Binary incompatibility of ssl_ctx_st structure
2160 + DTLS interoperation with non-compliant servers
2161 + Don't call get_session_cb() without proposed session
2162 + Fix ia64 assembler code
2163 [Andy Polyakov, Steve Henson]
2165 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2167 *) DTLS Handshake overhaul. There were longstanding issues with
2168 OpenSSL DTLS implementation, which were making it impossible for
2169 RFC 4347 compliant client to communicate with OpenSSL server.
2170 Unfortunately just fixing these incompatibilities would "cut off"
2171 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2172 server keeps tolerating non RFC compliant syntax. The opposite is
2173 not true, 0.9.8f client can not communicate with earlier server.
2174 This update even addresses CVE-2007-4995.
2177 *) Changes to avoid need for function casts in OpenSSL: some compilers
2178 (gcc 4.2 and later) reject their use.
2179 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2182 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2183 RFC4507bis. The encrypted ticket format is an encrypted encoded
2184 SSL_SESSION structure, that way new session features are automatically
2187 If a client application caches session in an SSL_SESSION structure
2188 support is transparent because tickets are now stored in the encoded
2191 The SSL_CTX structure automatically generates keys for ticket
2192 protection in servers so again support should be possible
2193 with no application modification.
2195 If a client or server wishes to disable RFC4507 support then the option
2196 SSL_OP_NO_TICKET can be set.
2198 Add a TLS extension debugging callback to allow the contents of any client
2199 or server extensions to be examined.
2201 This work was sponsored by Google.
2204 *) Add initial support for TLS extensions, specifically for the server_name
2205 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2206 have new members for a host name. The SSL data structure has an
2207 additional member SSL_CTX *initial_ctx so that new sessions can be
2208 stored in that context to allow for session resumption, even after the
2209 SSL has been switched to a new SSL_CTX in reaction to a client's
2210 server_name extension.
2212 New functions (subject to change):
2214 SSL_get_servername()
2215 SSL_get_servername_type()
2218 New CTRL codes and macros (subject to change):
2220 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2221 - SSL_CTX_set_tlsext_servername_callback()
2222 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2223 - SSL_CTX_set_tlsext_servername_arg()
2224 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2226 openssl s_client has a new '-servername ...' option.
2228 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2229 '-key2 ...', '-servername_fatal' (subject to change). This allows
2230 testing the HostName extension for a specific single host name ('-cert'
2231 and '-key' remain fallbacks for handshakes without HostName
2232 negotiation). If the unrecogninzed_name alert has to be sent, this by
2233 default is a warning; it becomes fatal with the '-servername_fatal'
2236 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2238 *) Add AES and SSE2 assembly language support to VC++ build.
2241 *) Mitigate attack on final subtraction in Montgomery reduction.
2244 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2245 (which previously caused an internal error).
2248 *) Squeeze another 10% out of IGE mode when in != out.
2251 *) AES IGE mode speedup.
2252 [Dean Gaudet (Google)]
2254 *) Add the Korean symmetric 128-bit cipher SEED (see
2255 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2256 add SEED ciphersuites from RFC 4162:
2258 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2259 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2260 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2261 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2263 To minimize changes between patchlevels in the OpenSSL 0.9.8
2264 series, SEED remains excluded from compilation unless OpenSSL
2265 is configured with 'enable-seed'.
2266 [KISA, Bodo Moeller]
2268 *) Mitigate branch prediction attacks, which can be practical if a
2269 single processor is shared, allowing a spy process to extract
2270 information. For detailed background information, see
2271 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2272 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2273 and Necessary Software Countermeasures"). The core of the change
2274 are new versions BN_div_no_branch() and
2275 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2276 respectively, which are slower, but avoid the security-relevant
2277 conditional branches. These are automatically called by BN_div()
2278 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2279 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2280 remove a conditional branch.
2282 BN_FLG_CONSTTIME is the new name for the previous
2283 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2284 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2285 in the exponent causes BN_mod_exp_mont() to use the alternative
2286 implementation in BN_mod_exp_mont_consttime().) The old name
2287 remains as a deprecated alias.
2289 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2290 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2291 constant-time implementations for more than just exponentiation.
2292 Here too the old name is kept as a deprecated alias.
2294 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2295 the BN_BLINDING structure gets an independent copy of the
2296 modulus. This means that the previous "BIGNUM *m" argument to
2297 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2298 essentially becomes "const BIGNUM *m", although we can't actually
2299 change this in the header file before 0.9.9. It allows
2300 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2301 enable BN_FLG_CONSTTIME.
2303 [Matthew D Wood (Intel Corp)]
2305 *) In the SSL/TLS server implementation, be strict about session ID
2306 context matching (which matters if an application uses a single
2307 external cache for different purposes). Previously,
2308 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2309 set. This did ensure strict client verification, but meant that,
2310 with applications using a single external cache for quite
2311 different requirements, clients could circumvent ciphersuite
2312 restrictions for a given session ID context by starting a session
2313 in a different context.
2316 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2317 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2318 authentication-only ciphersuites.
2321 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2322 not complete and could lead to a possible single byte overflow
2323 (CVE-2007-5135) [Ben Laurie]
2325 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2327 *) Since AES128 and AES256 (and similarly Camellia128 and
2328 Camellia256) share a single mask bit in the logic of
2329 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2330 kludge to work properly if AES128 is available and AES256 isn't
2331 (or if Camellia128 is available and Camellia256 isn't).
2334 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2335 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2336 When a point or a seed is encoded in a BIT STRING, we need to
2337 prevent the removal of trailing zero bits to get the proper DER
2338 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2339 of a NamedBitList, for which trailing 0 bits need to be removed.)
2342 *) Have SSL/TLS server implementation tolerate "mismatched" record
2343 protocol version while receiving ClientHello even if the
2344 ClientHello is fragmented. (The server can't insist on the
2345 particular protocol version it has chosen before the ServerHello
2346 message has informed the client about his choice.)
2349 *) Add RFC 3779 support.
2350 [Rob Austein for ARIN, Ben Laurie]
2352 *) Load error codes if they are not already present instead of using a
2353 static variable. This allows them to be cleanly unloaded and reloaded.
2354 Improve header file function name parsing.
2357 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2358 or CAPABILITY handshake as required by RFCs.
2361 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2363 *) Introduce limits to prevent malicious keys being able to
2364 cause a denial of service. (CVE-2006-2940)
2365 [Steve Henson, Bodo Moeller]
2367 *) Fix ASN.1 parsing of certain invalid structures that can result
2368 in a denial of service. (CVE-2006-2937) [Steve Henson]
2370 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2371 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2373 *) Fix SSL client code which could crash if connecting to a
2374 malicious SSLv2 server. (CVE-2006-4343)
2375 [Tavis Ormandy and Will Drewry, Google Security Team]
2377 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2378 match only those. Before that, "AES256-SHA" would be interpreted
2379 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2380 the same strength classification in 0.9.7h) as we currently only
2381 have a single AES bit in the ciphersuite description bitmap.
2382 That change, however, also applied to ciphersuite strings such as
2383 "RC4-MD5" that intentionally matched multiple ciphersuites --
2384 namely, SSL 2.0 ciphersuites in addition to the more common ones
2385 from SSL 3.0/TLS 1.0.
2387 So we change the selection algorithm again: Naming an explicit
2388 ciphersuite selects this one ciphersuite, and any other similar
2389 ciphersuite (same bitmap) from *other* protocol versions.
2390 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2391 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2393 Since SSL 2.0 does not have any ciphersuites for which the
2394 128/256 bit distinction would be relevant, this works for now.
2395 The proper fix will be to use different bits for AES128 and
2396 AES256, which would have avoided the problems from the beginning;
2397 however, bits are scarce, so we can only do this in a new release
2398 (not just a patchlevel) when we can change the SSL_CIPHER
2399 definition to split the single 'unsigned long mask' bitmap into
2400 multiple values to extend the available space.
2404 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2406 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2407 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2409 *) Add AES IGE and biIGE modes.
2412 *) Change the Unix randomness entropy gathering to use poll() when
2413 possible instead of select(), since the latter has some
2414 undesirable limitations.
2415 [Darryl Miles via Richard Levitte and Bodo Moeller]
2417 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2418 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2419 cannot be implicitly activated as part of, e.g., the "AES" alias.
2420 However, please upgrade to OpenSSL 0.9.9[-dev] for
2421 non-experimental use of the ECC ciphersuites to get TLS extension
2422 support, which is required for curve and point format negotiation
2423 to avoid potential handshake problems.
2426 *) Disable rogue ciphersuites:
2428 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2429 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2430 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2432 The latter two were purportedly from
2433 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2436 Also deactivate the remaining ciphersuites from
2437 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2438 unofficial, and the ID has long expired.
2441 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2442 dual-core machines) and other potential thread-safety issues.
2445 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2446 versions), which is now available for royalty-free use
2447 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2448 Also, add Camellia TLS ciphersuites from RFC 4132.
2450 To minimize changes between patchlevels in the OpenSSL 0.9.8
2451 series, Camellia remains excluded from compilation unless OpenSSL
2452 is configured with 'enable-camellia'.
2455 *) Disable the padding bug check when compression is in use. The padding
2456 bug check assumes the first packet is of even length, this is not
2457 necessarily true if compresssion is enabled and can result in false
2458 positives causing handshake failure. The actual bug test is ancient
2459 code so it is hoped that implementations will either have fixed it by
2460 now or any which still have the bug do not support compression.
2463 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2465 *) When applying a cipher rule check to see if string match is an explicit
2466 cipher suite and only match that one cipher suite if it is.
2469 *) Link in manifests for VC++ if needed.
2470 [Austin Ziegler <halostatue@gmail.com>]
2472 *) Update support for ECC-based TLS ciphersuites according to
2473 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2474 TLS extensions, which are supported starting with the 0.9.9
2475 branch, not in the OpenSSL 0.9.8 branch).
2478 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2479 opaque EVP_CIPHER_CTX handling.
2482 *) Fixes and enhancements to zlib compression code. We now only use
2483 "zlib1.dll" and use the default __cdecl calling convention on Win32
2484 to conform with the standards mentioned here:
2485 http://www.zlib.net/DLL_FAQ.txt
2486 Static zlib linking now works on Windows and the new --with-zlib-include
2487 --with-zlib-lib options to Configure can be used to supply the location
2488 of the headers and library. Gracefully handle case where zlib library
2492 *) Several fixes and enhancements to the OID generation code. The old code
2493 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2494 handle numbers larger than ULONG_MAX, truncated printing and had a
2495 non standard OBJ_obj2txt() behaviour.
2498 *) Add support for building of engines under engine/ as shared libraries
2499 under VC++ build system.
2502 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2503 Hopefully, we will not see any false combination of paths any more.
2506 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2508 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2509 (part of SSL_OP_ALL). This option used to disable the
2510 countermeasure against man-in-the-middle protocol-version
2511 rollback in the SSL 2.0 server implementation, which is a bad
2512 idea. (CVE-2005-2969)
2514 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2515 for Information Security, National Institute of Advanced Industrial
2516 Science and Technology [AIST], Japan)]
2518 *) Add two function to clear and return the verify parameter flags.
2521 *) Keep cipherlists sorted in the source instead of sorting them at
2522 runtime, thus removing the need for a lock.
2525 *) Avoid some small subgroup attacks in Diffie-Hellman.
2526 [Nick Mathewson and Ben Laurie]
2528 *) Add functions for well-known primes.
2531 *) Extended Windows CE support.
2532 [Satoshi Nakamura and Andy Polyakov]
2534 *) Initialize SSL_METHOD structures at compile time instead of during
2535 runtime, thus removing the need for a lock.
2538 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2539 attempting to decrypt each encrypted key in turn. Add support to
2543 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2545 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2548 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2551 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2552 key into the same file any more.
2555 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2558 *) Add -utf8 command line and config file option to 'ca'.
2559 [Stefan <stf@udoma.org]
2561 *) Removed the macro des_crypt(), as it seems to conflict with some
2562 libraries. Use DES_crypt().
2565 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2566 involves renaming the source and generated shared-libs for
2567 both. The engines will accept the corrected or legacy ids
2568 ('ncipher' and '4758_cca' respectively) when binding. NB,
2569 this only applies when building 'shared'.
2570 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2572 *) Add attribute functions to EVP_PKEY structure. Modify
2573 PKCS12_create() to recognize a CSP name attribute and
2574 use it. Make -CSP option work again in pkcs12 utility.
2577 *) Add new functionality to the bn blinding code:
2578 - automatic re-creation of the BN_BLINDING parameters after
2579 a fixed number of uses (currently 32)
2580 - add new function for parameter creation
2581 - introduce flags to control the update behaviour of the
2582 BN_BLINDING parameters
2583 - hide BN_BLINDING structure
2584 Add a second BN_BLINDING slot to the RSA structure to improve
2585 performance when a single RSA object is shared among several
2589 *) Add support for DTLS.
2590 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2592 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2593 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2596 *) Remove buggy and incompletet DH cert support from
2597 ssl/ssl_rsa.c and ssl/s3_both.c
2600 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2601 the apps/openssl applications.
2604 *) Compile clean with "-Wall -Wmissing-prototypes
2605 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2606 DEBUG_SAFESTACK must also be set.
2609 *) Change ./Configure so that certain algorithms can be disabled by default.
2610 The new counterpiece to "no-xxx" is "enable-xxx".
2612 The patented RC5 and MDC2 algorithms will now be disabled unless
2613 "enable-rc5" and "enable-mdc2", respectively, are specified.
2615 (IDEA remains enabled despite being patented. This is because IDEA
2616 is frequently required for interoperability, and there is no license
2617 fee for non-commercial use. As before, "no-idea" can be used to
2618 avoid this algorithm.)
2622 *) Add processing of proxy certificates (see RFC 3820). This work was
2623 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2624 EGEE (Enabling Grids for E-science in Europe).
2627 *) RC4 performance overhaul on modern architectures/implementations, such
2628 as Intel P4, IA-64 and AMD64.
2631 *) New utility extract-section.pl. This can be used specify an alternative
2632 section number in a pod file instead of having to treat each file as
2633 a separate case in Makefile. This can be done by adding two lines to the
2636 =for comment openssl_section:XXX
2638 The blank line is mandatory.
2642 *) New arguments -certform, -keyform and -pass for s_client and s_server
2643 to allow alternative format key and certificate files and passphrase
2647 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2648 update associated structures and add various utility functions.
2650 Add new policy related verify parameters, include policy checking in
2651 standard verify code. Enhance 'smime' application with extra parameters
2652 to support policy checking and print out.
2655 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2656 Nehemiah processors. These extensions support AES encryption in hardware
2657 as well as RNG (though RNG support is currently disabled).
2658 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2660 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2663 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2664 [Andy Polyakov and a number of other people]
2666 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2667 implementation contributed by IBM.
2668 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2670 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2671 exponent rather than 'unsigned long'. There is a corresponding change to
2672 the new 'rsa_keygen' element of the RSA_METHOD structure.
2673 [Jelte Jansen, Geoff Thorpe]
2675 *) Functionality for creating the initial serial number file is now
2676 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2678 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2679 number file to 1, which is bound to cause problems. To avoid
2680 the problems while respecting compatibility between different 0.9.7
2681 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2682 CA.pl for serial number initialization. With the new release 0.9.8,
2683 we can fix the problem directly in the 'ca' utility.)
2686 *) Reduced header interdepencies by declaring more opaque objects in
2687 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2688 give fewer recursive includes, which could break lazy source code - so
2689 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2690 developers should define this symbol when building and using openssl to
2691 ensure they track the recommended behaviour, interfaces, [etc], but
2692 backwards-compatible behaviour prevails when this isn't defined.
2695 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2698 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2699 This will generate a random key of the appropriate length based on the
2700 cipher context. The EVP_CIPHER can provide its own random key generation
2701 routine to support keys of a specific form. This is used in the des and
2702 3des routines to generate a key of the correct parity. Update S/MIME
2703 code to use new functions and hence generate correct parity DES keys.
2704 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2705 valid (weak or incorrect parity).
2708 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2709 as looking them up. This is useful when the verified structure may contain
2710 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2711 present unless the new PKCS7_NO_CRL flag is asserted.
2714 *) Extend ASN1 oid configuration module. It now additionally accepts the
2717 shortName = some long name, 1.2.3.4
2720 *) Reimplemented the BN_CTX implementation. There is now no more static
2721 limitation on the number of variables it can handle nor the depth of the
2722 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2723 information can now expand as required, and rather than having a single
2724 static array of bignums, BN_CTX now uses a linked-list of such arrays
2725 allowing it to expand on demand whilst maintaining the usefulness of
2726 BN_CTX's "bundling".
2729 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2730 to allow all RSA operations to function using a single BN_CTX.
2733 *) Preliminary support for certificate policy evaluation and checking. This
2734 is initially intended to pass the tests outlined in "Conformance Testing
2735 of Relying Party Client Certificate Path Processing Logic" v1.07.
2738 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2739 remained unused and not that useful. A variety of other little bignum
2740 tweaks and fixes have also been made continuing on from the audit (see
2744 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2745 associated ASN1, EVP and SSL functions and old ASN1 macros.
2748 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2749 and this should never fail. So the return value from the use of
2750 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2751 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2754 *) BN_CTX_get() should return zero-valued bignums, providing the same
2755 initialised value as BN_new().
2756 [Geoff Thorpe, suggested by Ulf Möller]
2758 *) Support for inhibitAnyPolicy certificate extension.
2761 *) An audit of the BIGNUM code is underway, for which debugging code is
2762 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2763 is considered valid when processing BIGNUMs, and causes execution to
2764 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2765 further steps are taken to deliberately pollute unused data in BIGNUM
2766 structures to try and expose faulty code further on. For now, openssl will
2767 (in its default mode of operation) continue to tolerate the inconsistent
2768 forms that it has tolerated in the past, but authors and packagers should
2769 consider trying openssl and their own applications when compiled with
2770 these debugging symbols defined. It will help highlight potential bugs in
2771 their own code, and will improve the test coverage for OpenSSL itself. At
2772 some point, these tighter rules will become openssl's default to improve
2773 maintainability, though the assert()s and other overheads will remain only
2774 in debugging configurations. See bn.h for more details.
2775 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2777 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2778 that can only be obtained through BN_CTX_new() (which implicitly
2779 initialises it). The presence of this function only made it possible
2780 to overwrite an existing structure (and cause memory leaks).
2783 *) Because of the callback-based approach for implementing LHASH as a
2784 template type, lh_insert() adds opaque objects to hash-tables and
2785 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2786 to clean up those corresponding objects before destroying the hash table
2787 (and losing the object pointers). So some over-zealous constifications in
2788 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2789 objects as "const" and the lh_doall[_arg] callback wrappers are not
2790 prototyped to have "const" restrictions on the object pointers they are
2791 given (and so aren't required to cast them away any more).
2794 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2795 (speed) prefers to use its own implementation. The two implementations
2796 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2797 its object type properly exposed (MS_TM) instead of casting to/from "char
2798 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2799 aren't necessarily the greatest nomenclatures - but this is what was used
2800 internally to the implementation so I've used that for now.
2803 *) Ensure that deprecated functions do not get compiled when
2804 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2805 the self-tests were still using deprecated key-generation functions so
2806 these have been updated also.
2809 *) Reorganise PKCS#7 code to separate the digest location functionality
2810 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2811 New function PKCS7_set_digest() to set the digest type for PKCS#7
2812 digestedData type. Add additional code to correctly generate the
2813 digestedData type and add support for this type in PKCS7 initialization
2817 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2818 structure of type "other".
2821 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2822 sure the loop does correctly stop and breaking ("division by zero")
2823 modulus operations are not performed. The (pre-generated) prime
2824 table crypto/bn/bn_prime.h was already correct, but it could not be
2825 re-generated on some platforms because of the "division by zero"
2826 situation in the script.
2827 [Ralf S. Engelschall]
2829 *) Update support for ECC-based TLS ciphersuites according to
2830 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2831 SHA-1 now is only used for "small" curves (where the
2832 representation of a field element takes up to 24 bytes); for
2833 larger curves, the field element resulting from ECDH is directly
2834 used as premaster secret.
2835 [Douglas Stebila (Sun Microsystems Laboratories)]
2837 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2838 curve secp160r1 to the tests.
2839 [Douglas Stebila (Sun Microsystems Laboratories)]
2841 *) Add the possibility to load symbols globally with DSO.
2842 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2844 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2845 control of the error stack.
2848 *) Add support for STORE in ENGINE.
2851 *) Add the STORE type. The intention is to provide a common interface
2852 to certificate and key stores, be they simple file-based stores, or
2853 HSM-type store, or LDAP stores, or...
2854 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2857 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2858 pass a list of arguments to any function as well as provide a way
2859 for a function to pass data back to the caller.
2862 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2863 works like BUF_strdup() but can be used to duplicate a portion of
2864 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2868 *) Add the function sk_find_ex() which works like sk_find(), but will
2869 return an index to an element even if an exact match couldn't be
2870 found. The index is guaranteed to point at the element where the
2871 searched-for key would be inserted to preserve sorting order.
2874 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2875 takes an extra flags argument for optional functionality. Currently,
2876 the following flags are defined:
2878 OBJ_BSEARCH_VALUE_ON_NOMATCH
2879 This one gets OBJ_bsearch_ex() to return a pointer to the first
2880 element where the comparing function returns a negative or zero
2883 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2884 This one gets OBJ_bsearch_ex() to return a pointer to the first
2885 element where the comparing function returns zero. This is useful
2886 if there are more than one element where the comparing function
2890 *) Make it possible to create self-signed certificates with 'openssl ca'
2891 in such a way that the self-signed certificate becomes part of the
2892 CA database and uses the same mechanisms for serial number generation
2893 as all other certificate signing. The new flag '-selfsign' enables
2894 this functionality. Adapt CA.sh and CA.pl.in.
2897 *) Add functionality to check the public key of a certificate request
2898 against a given private. This is useful to check that a certificate
2899 request can be signed by that key (self-signing).
2902 *) Make it possible to have multiple active certificates with the same
2903 subject in the CA index file. This is done only if the keyword
2904 'unique_subject' is set to 'no' in the main CA section (default
2905 if 'CA_default') of the configuration file. The value is saved
2906 with the database itself in a separate index attribute file,
2907 named like the index file with '.attr' appended to the name.
2910 *) Generate muti valued AVAs using '+' notation in config files for
2914 *) Support for nameConstraints certificate extension.
2917 *) Support for policyConstraints certificate extension.
2920 *) Support for policyMappings certificate extension.
2923 *) Make sure the default DSA_METHOD implementation only uses its
2924 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2925 and change its own handlers to be NULL so as to remove unnecessary
2926 indirection. This lets alternative implementations fallback to the
2927 default implementation more easily.
2930 *) Support for directoryName in GeneralName related extensions
2934 *) Make it possible to link applications using Makefile.shared.
2935 Make that possible even when linking against static libraries!
2938 *) Support for single pass processing for S/MIME signing. This now
2939 means that S/MIME signing can be done from a pipe, in addition
2940 cleartext signing (multipart/signed type) is effectively streaming
2941 and the signed data does not need to be all held in memory.
2943 This is done with a new flag PKCS7_STREAM. When this flag is set
2944 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2945 is done after the data is output (and digests calculated) in
2946 SMIME_write_PKCS7().
2949 *) Add full support for -rpath/-R, both in shared libraries and
2950 applications, at least on the platforms where it's known how
2954 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2955 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2956 will now compute a table of multiples of the generator that
2957 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2958 faster (notably in the case of a single point multiplication,
2959 scalar * generator).
2960 [Nils Larsch, Bodo Moeller]
2962 *) IPv6 support for certificate extensions. The various extensions
2963 which use the IP:a.b.c.d can now take IPv6 addresses using the
2964 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2968 *) Added an ENGINE that implements RSA by performing private key
2969 exponentiations with the GMP library. The conversions to and from
2970 GMP's mpz_t format aren't optimised nor are any montgomery forms
2971 cached, and on x86 it appears OpenSSL's own performance has caught up.
2972 However there are likely to be other architectures where GMP could
2973 provide a boost. This ENGINE is not built in by default, but it can be
2974 specified at Configure time and should be accompanied by the necessary
2975 linker additions, eg;
2976 ./config -DOPENSSL_USE_GMP -lgmp
2979 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2980 testing availability of engines with "-t" - the old behaviour is
2981 produced by increasing the feature's verbosity with "-tt".
2984 *) ECDSA routines: under certain error conditions uninitialized BN objects
2985 could be freed. Solution: make sure initialization is performed early
2986 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2990 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2991 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2992 software implementations. For DSA and DH, parameter generation can
2993 also be overriden by providing the appropriate method callbacks.
2996 *) Change the "progress" mechanism used in key-generation and
2997 primality testing to functions that take a new BN_GENCB pointer in
2998 place of callback/argument pairs. The new API functions have "_ex"
2999 postfixes and the older functions are reimplemented as wrappers for
3000 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3001 declarations of the old functions to help (graceful) attempts to
3002 migrate to the new functions. Also, the new key-generation API
3003 functions operate on a caller-supplied key-structure and return
3004 success/failure rather than returning a key or NULL - this is to
3005 help make "keygen" another member function of RSA_METHOD etc.
3007 Example for using the new callback interface:
3009 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3013 BN_GENCB_set(&my_cb, my_callback, my_arg);
3015 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3016 /* For the meaning of a, b in calls to my_callback(), see the
3017 * documentation of the function that calls the callback.
3018 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3019 * my_callback should return 1 if it wants BN_is_prime_ex()
3020 * to continue, or 0 to stop.
3025 *) Change the ZLIB compression method to be stateful, and make it
3026 available to TLS with the number defined in
3027 draft-ietf-tls-compression-04.txt.
3030 *) Add the ASN.1 structures and functions for CertificatePair, which
3031 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3033 CertificatePair ::= SEQUENCE {
3034 forward [0] Certificate OPTIONAL,
3035 reverse [1] Certificate OPTIONAL,
3036 -- at least one of the pair shall be present -- }
3038 Also implement the PEM functions to read and write certificate
3039 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3041 This needed to be defined, mostly for the sake of the LDAP
3042 attribute crossCertificatePair, but may prove useful elsewhere as
3046 *) Make it possible to inhibit symlinking of shared libraries in
3047 Makefile.shared, for Cygwin's sake.
3050 *) Extend the BIGNUM API by creating a function
3051 void BN_set_negative(BIGNUM *a, int neg);
3052 and a macro that behave like
3053 int BN_is_negative(const BIGNUM *a);
3055 to avoid the need to access 'a->neg' directly in applications.
3058 *) Implement fast modular reduction for pseudo-Mersenne primes
3059 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3060 EC_GROUP_new_curve_GFp() will now automatically use this
3062 [Nils Larsch <nla@trustcenter.de>]
3064 *) Add new lock type (CRYPTO_LOCK_BN).
3067 *) Change the ENGINE framework to automatically load engines
3068 dynamically from specific directories unless they could be
3069 found to already be built in or loaded. Move all the
3070 current engines except for the cryptodev one to a new
3072 The engines in engines/ are built as shared libraries if
3073 the "shared" options was given to ./Configure or ./config.
3074 Otherwise, they are inserted in libcrypto.a.
3075 /usr/local/ssl/engines is the default directory for dynamic
3076 engines, but that can be overriden at configure time through
3077 the usual use of --prefix and/or --openssldir, and at run
3078 time with the environment variable OPENSSL_ENGINES.
3079 [Geoff Thorpe and Richard Levitte]
3081 *) Add Makefile.shared, a helper makefile to build shared
3082 libraries. Addapt Makefile.org.
3085 *) Add version info to Win32 DLLs.
3086 [Peter 'Luna' Runestig" <peter@runestig.com>]
3088 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3089 can be added using this API to created arbitrary PKCS#12
3090 files while avoiding the low level API.
3092 New options to PKCS12_create(), key or cert can be NULL and
3093 will then be omitted from the output file. The encryption
3094 algorithm NIDs can be set to -1 for no encryption, the mac
3095 iteration count can be set to 0 to omit the mac.
3097 Enhance pkcs12 utility by making the -nokeys and -nocerts
3098 options work when creating a PKCS#12 file. New option -nomac
3099 to omit the mac, NONE can be set for an encryption algorithm.
3100 New code is modified to use the enhanced PKCS12_create()
3101 instead of the low level API.
3104 *) Extend ASN1 encoder to support indefinite length constructed
3105 encoding. This can output sequences tags and octet strings in
3106 this form. Modify pk7_asn1.c to support indefinite length
3107 encoding. This is experimental and needs additional code to
3108 be useful, such as an ASN1 bio and some enhanced streaming
3111 Extend template encode functionality so that tagging is passed
3112 down to the template encoder.
3115 *) Let 'openssl req' fail if an argument to '-newkey' is not
3116 recognized instead of using RSA as a default.
3119 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3120 As these are not official, they are not included in "ALL";
3121 the "ECCdraft" ciphersuite group alias can be used to select them.
3122 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3124 *) Add ECDH engine support.
3125 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3127 *) Add ECDH in new directory crypto/ecdh/.
3128 [Douglas Stebila (Sun Microsystems Laboratories)]
3130 *) Let BN_rand_range() abort with an error after 100 iterations
3131 without success (which indicates a broken PRNG).
3134 *) Change BN_mod_sqrt() so that it verifies that the input value
3135 is really the square of the return value. (Previously,
3136 BN_mod_sqrt would show GIGO behaviour.)
3139 *) Add named elliptic curves over binary fields from X9.62, SECG,
3140 and WAP/WTLS; add OIDs that were still missing.
3142 [Sheueling Chang Shantz and Douglas Stebila
3143 (Sun Microsystems Laboratories)]
3145 *) Extend the EC library for elliptic curves over binary fields
3146 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3149 EC_GF2m_simple_method
3153 EC_GROUP_new_curve_GF2m
3154 EC_GROUP_set_curve_GF2m
3155 EC_GROUP_get_curve_GF2m
3156 EC_POINT_set_affine_coordinates_GF2m
3157 EC_POINT_get_affine_coordinates_GF2m
3158 EC_POINT_set_compressed_coordinates_GF2m
3160 Point compression for binary fields is disabled by default for
3161 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3164 As binary polynomials are represented as BIGNUMs, various members
3165 of the EC_GROUP and EC_POINT data structures can be shared
3166 between the implementations for prime fields and binary fields;
3167 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3168 are essentially identical to their ..._GFp counterparts.
3169 (For simplicity, the '..._GFp' prefix has been dropped from
3170 various internal method names.)
3172 An internal 'field_div' method (similar to 'field_mul' and
3173 'field_sqr') has been added; this is used only for binary fields.
3175 [Sheueling Chang Shantz and Douglas Stebila
3176 (Sun Microsystems Laboratories)]
3178 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3179 through methods ('mul', 'precompute_mult').
3181 The generic implementations (now internally called 'ec_wNAF_mul'
3182 and 'ec_wNAF_precomputed_mult') remain the default if these
3183 methods are undefined.
3185 [Sheueling Chang Shantz and Douglas Stebila
3186 (Sun Microsystems Laboratories)]
3188 *) New function EC_GROUP_get_degree, which is defined through
3189 EC_METHOD. For curves over prime fields, this returns the bit
3190 length of the modulus.
3192 [Sheueling Chang Shantz and Douglas Stebila
3193 (Sun Microsystems Laboratories)]
3195 *) New functions EC_GROUP_dup, EC_POINT_dup.
3196 (These simply call ..._new and ..._copy).
3198 [Sheueling Chang Shantz and Douglas Stebila
3199 (Sun Microsystems Laboratories)]
3201 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3202 Polynomials are represented as BIGNUMs (where the sign bit is not
3203 used) in the following functions [macros]:
3206 BN_GF2m_sub [= BN_GF2m_add]
3207 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3208 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3209 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3211 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3212 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3213 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3214 BN_GF2m_cmp [= BN_ucmp]
3216 (Note that only the 'mod' functions are actually for fields GF(2^m).
3217 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3219 For some functions, an the irreducible polynomial defining a
3220 field can be given as an 'unsigned int[]' with strictly
3221 decreasing elements giving the indices of those bits that are set;
3222 i.e., p[] represents the polynomial
3223 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3225 p[0] > p[1] > ... > p[k] = 0.
3226 This applies to the following functions:
3231 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3232 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3234 BN_GF2m_mod_sqrt_arr
3235 BN_GF2m_mod_solve_quad_arr
3239 Conversion can be performed by the following functions:
3244 bntest.c has additional tests for binary polynomial arithmetic.
3246 Two implementations for BN_GF2m_mod_div() are available.
3247 The default algorithm simply uses BN_GF2m_mod_inv() and
3248 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3249 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3250 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3252 [Sheueling Chang Shantz and Douglas Stebila
3253 (Sun Microsystems Laboratories)]
3255 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3256 functionality is disabled at compile-time.
3257 [Douglas Stebila <douglas.stebila@sun.com>]
3259 *) Change default behaviour of 'openssl asn1parse' so that more
3260 information is visible when viewing, e.g., a certificate:
3262 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3263 mode the content of non-printable OCTET STRINGs is output in a
3264 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3265 avoid the appearance of a printable string.
3266 [Nils Larsch <nla@trustcenter.de>]
3268 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3270 EC_GROUP_set_asn1_flag()
3271 EC_GROUP_get_asn1_flag()
3272 EC_GROUP_set_point_conversion_form()
3273 EC_GROUP_get_point_conversion_form()
3274 These control ASN1 encoding details:
3275 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3276 has been set to OPENSSL_EC_NAMED_CURVE.
3277 - Points are encoded in uncompressed form by default; options for
3278 asn1_for are as for point2oct, namely
3279 POINT_CONVERSION_COMPRESSED
3280 POINT_CONVERSION_UNCOMPRESSED
3281 POINT_CONVERSION_HYBRID
3283 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3286 EC_GROUP_get0_seed()
3287 EC_GROUP_get_seed_len()
3288 This is used only for ASN1 purposes (so far).
3289 [Nils Larsch <nla@trustcenter.de>]
3291 *) Add 'field_type' member to EC_METHOD, which holds the NID
3292 of the appropriate field type OID. The new function
3293 EC_METHOD_get_field_type() returns this value.
3294 [Nils Larsch <nla@trustcenter.de>]
3299 EC_POINT_point2hex()
3300 EC_POINT_hex2point()
3301 providing useful interfaces to EC_POINT_point2oct() and
3302 EC_POINT_oct2point().
3303 [Nils Larsch <nla@trustcenter.de>]
3305 *) Change internals of the EC library so that the functions
3306 EC_GROUP_set_generator()
3307 EC_GROUP_get_generator()
3308 EC_GROUP_get_order()
3309 EC_GROUP_get_cofactor()
3310 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3311 to methods, which would lead to unnecessary code duplication when
3312 adding different types of curves.
3313 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3315 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3316 arithmetic, and such that modified wNAFs are generated
3317 (which avoid length expansion in many cases).
3320 *) Add a function EC_GROUP_check_discriminant() (defined via
3321 EC_METHOD) that verifies that the curve discriminant is non-zero.
3323 Add a function EC_GROUP_check() that makes some sanity tests
3324 on a EC_GROUP, its generator and order. This includes
3325 EC_GROUP_check_discriminant().
3326 [Nils Larsch <nla@trustcenter.de>]
3328 *) Add ECDSA in new directory crypto/ecdsa/.
3330 Add applications 'openssl ecparam' and 'openssl ecdsa'
3331 (these are based on 'openssl dsaparam' and 'openssl dsa').
3333 ECDSA support is also included in various other files across the
3334 library. Most notably,
3335 - 'openssl req' now has a '-newkey ecdsa:file' option;
3336 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3337 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3338 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3339 them suitable for ECDSA where domain parameters must be
3340 extracted before the specific public key;
3341 - ECDSA engine support has been added.
3342 [Nils Larsch <nla@trustcenter.de>]
3344 *) Include some named elliptic curves, and add OIDs from X9.62,
3345 SECG, and WAP/WTLS. Each curve can be obtained from the new
3347 EC_GROUP_new_by_curve_name(),
3348 and the list of available named curves can be obtained with
3349 EC_get_builtin_curves().
3350 Also add a 'curve_name' member to EC_GROUP objects, which can be
3352 EC_GROUP_set_curve_name()
3353 EC_GROUP_get_curve_name()
3354 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3356 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3357 was actually never needed) and in BN_mul(). The removal in BN_mul()
3358 required a small change in bn_mul_part_recursive() and the addition
3359 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3360 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3361 bn_sub_words() and bn_add_words() except they take arrays with
3365 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3367 *) Cleanse PEM buffers before freeing them since they may contain
3369 [Benjamin Bennett <ben@psc.edu>]
3371 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3372 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3373 authentication-only ciphersuites.
3376 *) Since AES128 and AES256 share a single mask bit in the logic of
3377 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3378 kludge to work properly if AES128 is available and AES256 isn't.
3381 *) Expand security boundary to match 1.1.1 module.
3384 *) Remove redundant features: hash file source, editing of test vectors
3385 modify fipsld to use external fips_premain.c signature.
3388 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3389 run algorithm test programs.
3392 *) Make algorithm test programs more tolerant of whitespace.
3395 *) Have SSL/TLS server implementation tolerate "mismatched" record
3396 protocol version while receiving ClientHello even if the
3397 ClientHello is fragmented. (The server can't insist on the
3398 particular protocol version it has chosen before the ServerHello
3399 message has informed the client about his choice.)
3402 *) Load error codes if they are not already present instead of using a
3403 static variable. This allows them to be cleanly unloaded and reloaded.
3406 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3408 *) Introduce limits to prevent malicious keys being able to
3409 cause a denial of service. (CVE-2006-2940)
3410 [Steve Henson, Bodo Moeller]
3412 *) Fix ASN.1 parsing of certain invalid structures that can result
3413 in a denial of service. (CVE-2006-2937) [Steve Henson]
3415 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3416 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3418 *) Fix SSL client code which could crash if connecting to a
3419 malicious SSLv2 server. (CVE-2006-4343)
3420 [Tavis Ormandy and Will Drewry, Google Security Team]
3422 *) Change ciphersuite string processing so that an explicit
3423 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3424 will no longer include "AES128-SHA"), and any other similar
3425 ciphersuite (same bitmap) from *other* protocol versions (so that
3426 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3427 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3428 changes from 0.9.8b and 0.9.8d.
3431 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3433 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3434 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3436 *) Change the Unix randomness entropy gathering to use poll() when
3437 possible instead of select(), since the latter has some
3438 undesirable limitations.
3439 [Darryl Miles via Richard Levitte and Bodo Moeller]
3441 *) Disable rogue ciphersuites:
3443 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3444 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3445 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3447 The latter two were purportedly from
3448 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3451 Also deactive the remaining ciphersuites from
3452 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3453 unofficial, and the ID has long expired.
3456 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3457 dual-core machines) and other potential thread-safety issues.
3460 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3462 *) Adapt fipsld and the build system to link against the validated FIPS
3463 module in FIPS mode.
3466 *) Fixes for VC++ 2005 build under Windows.
3469 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3470 from a Windows bash shell such as MSYS. It is autodetected from the
3471 "config" script when run from a VC++ environment. Modify standard VC++
3472 build to use fipscanister.o from the GNU make build.
3475 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3477 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3478 The value now differs depending on if you build for FIPS or not.
3479 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3480 safely run with a non-FIPSed libcrypto, as it may crash because of
3481 the difference induced by this change.
3484 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3486 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3487 (part of SSL_OP_ALL). This option used to disable the
3488 countermeasure against man-in-the-middle protocol-version
3489 rollback in the SSL 2.0 server implementation, which is a bad
3490 idea. (CVE-2005-2969)
3492 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3493 for Information Security, National Institute of Advanced Industrial
3494 Science and Technology [AIST], Japan)]
3496 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3497 mainly for FIPS compliance and not fully integrated at this stage.
3500 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3501 the exponentiation using a fixed-length exponent. (Otherwise,
3502 the information leaked through timing could expose the secret key
3503 after many signatures; cf. Bleichenbacher's attack on DSA with
3507 *) Make a new fixed-window mod_exp implementation the default for
3508 RSA, DSA, and DH private-key operations so that the sequence of
3509 squares and multiplies and the memory access pattern are
3510 independent of the particular secret key. This will mitigate
3511 cache-timing and potential related attacks.
3513 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3514 and this is automatically used by BN_mod_exp_mont() if the new flag
3515 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3516 will use this BN flag for private exponents unless the flag
3517 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3518 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3520 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3522 *) Change the client implementation for SSLv23_method() and
3523 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3524 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3525 (Previously, the SSL 2.0 backwards compatible Client Hello
3526 message format would be used even with SSL_OP_NO_SSLv2.)
3529 *) Add support for smime-type MIME parameter in S/MIME messages which some
3533 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3534 a threadsafe manner. Modify rsa code to use new function and add calls
3535 to dsa and dh code (which had race conditions before).
3538 *) Include the fixed error library code in the C error file definitions
3539 instead of fixing them up at runtime. This keeps the error code
3540 structures constant.
3543 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3545 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3548 *) Fixes for newer kerberos headers. NB: the casts are needed because
3549 the 'length' field is signed on one version and unsigned on another
3550 with no (?) obvious way to tell the difference, without these VC++
3551 complains. Also the "definition" of FAR (blank) is no longer included
3552 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3553 some needed definitions.
3556 *) Undo Cygwin change.
3559 *) Added support for proxy certificates according to RFC 3820.
3560 Because they may be a security thread to unaware applications,
3561 they must be explicitely allowed in run-time. See
3562 docs/HOWTO/proxy_certificates.txt for further information.
3565 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3567 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3568 server and client random values. Previously
3569 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3570 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3572 This change has negligible security impact because:
3574 1. Server and client random values still have 24 bytes of pseudo random
3577 2. Server and client random values are sent in the clear in the initial
3580 3. The master secret is derived using the premaster secret (48 bytes in
3581 size for static RSA ciphersuites) as well as client server and random
3584 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3587 [Stephen Henson, reported by UK NISCC]
3589 *) Use Windows randomness collection on Cygwin.
3592 *) Fix hang in EGD/PRNGD query when communication socket is closed
3593 prematurely by EGD/PRNGD.
3594 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3596 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3599 *) Back-port of selected performance improvements from development
3600 branch, as well as improved support for PowerPC platforms.
3603 *) Add lots of checks for memory allocation failure, error codes to indicate
3604 failure and freeing up memory if a failure occurs.
3605 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3607 *) Add new -passin argument to dgst.
3610 *) Perform some character comparisons of different types in X509_NAME_cmp:
3611 this is needed for some certificates that reencode DNs into UTF8Strings
3612 (in violation of RFC3280) and can't or wont issue name rollover
3616 *) Make an explicit check during certificate validation to see that
3617 the CA setting in each certificate on the chain is correct. As a
3618 side effect always do the following basic checks on extensions,
3619 not just when there's an associated purpose to the check:
3621 - if there is an unhandled critical extension (unless the user
3622 has chosen to ignore this fault)
3623 - if the path length has been exceeded (if one is set at all)
3624 - that certain extensions fit the associated purpose (if one has
3628 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3630 *) Avoid a race condition when CRLs are checked in a multi threaded
3631 environment. This would happen due to the reordering of the revoked
3632 entries during signature checking and serial number lookup. Now the
3633 encoding is cached and the serial number sort performed under a lock.
3634 Add new STACK function sk_is_sorted().
3637 *) Add Delta CRL to the extension code.
3640 *) Various fixes to s3_pkt.c so alerts are sent properly.
3641 [David Holmes <d.holmes@f5.com>]
3643 *) Reduce the chances of duplicate issuer name and serial numbers (in
3644 violation of RFC3280) using the OpenSSL certificate creation utilities.
3645 This is done by creating a random 64 bit value for the initial serial
3646 number when a serial number file is created or when a self signed
3647 certificate is created using 'openssl req -x509'. The initial serial
3648 number file is created using 'openssl x509 -next_serial' in CA.pl
3649 rather than being initialized to 1.
3652 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3654 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3655 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3656 [Joe Orton, Steve Henson]
3658 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3660 [Joe Orton, Steve Henson]
3662 *) Make it possible to have multiple active certificates with the same
3663 subject in the CA index file. This is done only if the keyword
3664 'unique_subject' is set to 'no' in the main CA section (default
3665 if 'CA_default') of the configuration file. The value is saved
3666 with the database itself in a separate index attribute file,
3667 named like the index file with '.attr' appended to the name.
3670 *) X509 verify fixes. Disable broken certificate workarounds when
3671 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3672 keyUsage extension present. Don't accept CRLs with unhandled critical
3673 extensions: since verify currently doesn't process CRL extensions this
3674 rejects a CRL with *any* critical extensions. Add new verify error codes
3678 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3679 A clarification of RFC2560 will require the use of OCTET STRINGs and
3680 some implementations cannot handle the current raw format. Since OpenSSL
3681 copies and compares OCSP nonces as opaque blobs without any attempt at
3682 parsing them this should not create any compatibility issues.
3685 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3686 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3687 this HMAC (and other) operations are several times slower than OpenSSL
3691 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3692 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3694 *) Use the correct content when signing type "other".
3697 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3699 *) Fix various bugs revealed by running the NISCC test suite:
3701 Stop out of bounds reads in the ASN1 code when presented with
3702 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3704 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3706 If verify callback ignores invalid public key errors don't try to check
3707 certificate signature with the NULL public key.
3711 *) New -ignore_err option in ocsp application to stop the server
3712 exiting on the first error in a request.
3715 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3716 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3720 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3721 extra data after the compression methods not only for TLS 1.0
3722 but also for SSL 3.0 (as required by the specification).
3723 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3725 *) Change X509_certificate_type() to mark the key as exported/exportable
3726 when it's 512 *bits* long, not 512 bytes.
3729 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3730 blocks during encryption.
3733 *) Various fixes to base64 BIO and non blocking I/O. On write
3734 flushes were not handled properly if the BIO retried. On read
3735 data was not being buffered properly and had various logic bugs.
3736 This also affects blocking I/O when the data being decoded is a
3740 *) Various S/MIME bugfixes and compatibility changes:
3741 output correct application/pkcs7 MIME type if
3742 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3743 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3744 of files as .eml work). Correctly handle very long lines in MIME
3748 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3750 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3751 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3752 a protocol version number mismatch like a decryption error
3753 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3756 *) Turn on RSA blinding by default in the default implementation
3757 to avoid a timing attack. Applications that don't want it can call
3758 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3759 They would be ill-advised to do so in most cases.
3760 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3762 *) Change RSA blinding code so that it works when the PRNG is not
3763 seeded (in this case, the secret RSA exponent is abused as
3764 an unpredictable seed -- if it is not unpredictable, there
3765 is no point in blinding anyway). Make RSA blinding thread-safe
3766 by remembering the creator's thread ID in rsa->blinding and
3767 having all other threads use local one-time blinding factors
3768 (this requires more computation than sharing rsa->blinding, but
3769 avoids excessive locking; and if an RSA object is not shared
3770 between threads, blinding will still be very fast).
3773 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3774 ENGINE as defaults for all supported algorithms irrespective of
3775 the 'flags' parameter. 'flags' is now honoured, so applications
3776 should make sure they are passing it correctly.
3779 *) Target "mingw" now allows native Windows code to be generated in
3780 the Cygwin environment as well as with the MinGW compiler.
3783 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3785 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3786 via timing by performing a MAC computation even if incorrrect
3787 block cipher padding has been found. This is a countermeasure
3788 against active attacks where the attacker has to distinguish
3789 between bad padding and a MAC verification error. (CVE-2003-0078)
3791 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3792 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3793 Martin Vuagnoux (EPFL, Ilion)]
3795 *) Make the no-err option work as intended. The intention with no-err
3796 is not to have the whole error stack handling routines removed from
3797 libcrypto, it's only intended to remove all the function name and
3798 reason texts, thereby removing some of the footprint that may not
3799 be interesting if those errors aren't displayed anyway.
3801 NOTE: it's still possible for any application or module to have it's
3802 own set of error texts inserted. The routines are there, just not
3803 used by default when no-err is given.
3806 *) Add support for FreeBSD on IA64.
3807 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3809 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3810 Kerberos function mit_des_cbc_cksum(). Before this change,
3811 the value returned by DES_cbc_cksum() was like the one from
3812 mit_des_cbc_cksum(), except the bytes were swapped.
3813 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3815 *) Allow an application to disable the automatic SSL chain building.
3816 Before this a rather primitive chain build was always performed in
3817 ssl3_output_cert_chain(): an application had no way to send the
3818 correct chain if the automatic operation produced an incorrect result.
3820 Now the chain builder is disabled if either:
3822 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3824 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3826 The reasoning behind this is that an application would not want the
3827 auto chain building to take place if extra chain certificates are
3828 present and it might also want a means of sending no additional
3829 certificates (for example the chain has two certificates and the
3833 *) Add the possibility to build without the ENGINE framework.
3834 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3836 *) Under Win32 gmtime() can return NULL: check return value in
3837 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3840 *) DSA routines: under certain error conditions uninitialized BN objects
3841 could be freed. Solution: make sure initialization is performed early
3842 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3843 Nils Larsch <nla@trustcenter.de> via PR#459)
3846 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3847 checked on reconnect on the client side, therefore session resumption
3848 could still fail with a "ssl session id is different" error. This
3849 behaviour is masked when SSL_OP_ALL is used due to
3850 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3851 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3852 followup to PR #377.
3855 *) IA-32 assembler support enhancements: unified ELF targets, support
3856 for SCO/Caldera platforms, fix for Cygwin shared build.
3859 *) Add support for FreeBSD on sparc64. As a consequence, support for
3860 FreeBSD on non-x86 processors is separate from x86 processors on
3861 the config script, much like the NetBSD support.
3862 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3864 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3866 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3869 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3870 code (06) was taken as the first octet of the session ID and the last
3871 octet was ignored consequently. As a result SSLv2 client side session
3872 caching could not have worked due to the session ID mismatch between
3874 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3878 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3879 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3883 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3884 seems that in spite of existing for more than a year, many application
3885 author have done nothing to provide the necessary callbacks, which
3886 means that this particular engine will not work properly anywhere.
3887 This is a very unfortunate situation which forces us, in the name
3888 of usability, to give the hw_ncipher.c a static lock, which is part
3890 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3891 appear in 0.9.8 or later. We EXPECT application authors to have
3892 dealt properly with this when 0.9.8 is released (unless we actually
3893 make such changes in the libcrypto locking code that changes will
3894 have to be made anyway).
3897 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3898 octets have been read, EOF or an error occurs. Without this change
3899 some truncated ASN1 structures will not produce an error.
3902 *) Disable Heimdal support, since it hasn't been fully implemented.
3903 Still give the possibility to force the use of Heimdal, but with
3904 warnings and a request that patches get sent to openssl-dev.
3907 *) Add the VC-CE target, introduce the WINCE sysname, and add
3908 INSTALL.WCE and appropriate conditionals to make it build.
3909 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3911 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3912 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3913 edit numbers of the version.
3914 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3916 *) Introduce safe string copy and catenation functions
3917 (BUF_strlcpy() and BUF_strlcat()).
3918 [Ben Laurie (CHATS) and Richard Levitte]
3920 *) Avoid using fixed-size buffers for one-line DNs.
3921 [Ben Laurie (CHATS)]
3923 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3924 resizing buffers containing secrets, and use where appropriate.
3925 [Ben Laurie (CHATS)]
3927 *) Avoid using fixed size buffers for configuration file location.
3928 [Ben Laurie (CHATS)]
3930 *) Avoid filename truncation for various CA files.
3931 [Ben Laurie (CHATS)]
3933 *) Use sizeof in preference to magic numbers.
3934 [Ben Laurie (CHATS)]
3936 *) Avoid filename truncation in cert requests.
3937 [Ben Laurie (CHATS)]
3939 *) Add assertions to check for (supposedly impossible) buffer
3941 [Ben Laurie (CHATS)]
3943 *) Don't cache truncated DNS entries in the local cache (this could
3944 potentially lead to a spoofing attack).
3945 [Ben Laurie (CHATS)]
3947 *) Fix various buffers to be large enough for hex/decimal
3948 representations in a platform independent manner.
3949 [Ben Laurie (CHATS)]
3951 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3952 resizing buffers containing secrets, and use where appropriate.
3953 [Ben Laurie (CHATS)]
3955 *) Add BIO_indent() to avoid much slightly worrying code to do
3957 [Ben Laurie (CHATS)]
3959 *) Convert sprintf()/BIO_puts() to BIO_printf().
3960 [Ben Laurie (CHATS)]
3962 *) buffer_gets() could terminate with the buffer only half
3964 [Ben Laurie (CHATS)]
3966 *) Add assertions to prevent user-supplied crypto functions from
3967 overflowing internal buffers by having large block sizes, etc.
3968 [Ben Laurie (CHATS)]
3970 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3972 [Ben Laurie (CHATS)]
3974 *) Eliminate unused copy of key in RC4.
3975 [Ben Laurie (CHATS)]
3977 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3978 [Ben Laurie (CHATS)]
3980 *) Fix off-by-one error in EGD path.
3981 [Ben Laurie (CHATS)]
3983 *) If RANDFILE path is too long, ignore instead of truncating.
3984 [Ben Laurie (CHATS)]
3986 *) Eliminate unused and incorrectly sized X.509 structure
3988 [Ben Laurie (CHATS)]
3990 *) Eliminate unused and dangerous function knumber().
3991 [Ben Laurie (CHATS)]
3993 *) Eliminate unused and dangerous structure, KSSL_ERR.
3994 [Ben Laurie (CHATS)]
3996 *) Protect against overlong session ID context length in an encoded
3997 session object. Since these are local, this does not appear to be
3999 [Ben Laurie (CHATS)]
4001 *) Change from security patch (see 0.9.6e below) that did not affect
4002 the 0.9.6 release series:
4004 Remote buffer overflow in SSL3 protocol - an attacker could
4005 supply an oversized master key in Kerberos-enabled versions.
4007 [Ben Laurie (CHATS)]
4009 *) Change the SSL kerb5 codes to match RFC 2712.
4012 *) Make -nameopt work fully for req and add -reqopt switch.
4013 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4015 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4016 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4018 *) Make sure tests can be performed even if the corresponding algorithms
4019 have been removed entirely. This was also the last step to make
4020 OpenSSL compilable with DJGPP under all reasonable conditions.
4021 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4023 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4024 to allow version independent disabling of normally unselected ciphers,
4025 which may be activated as a side-effect of selecting a single cipher.
4027 (E.g., cipher list string "RSA" enables ciphersuites that are left
4028 out of "ALL" because they do not provide symmetric encryption.
4029 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4030 [Lutz Jaenicke, Bodo Moeller]
4032 *) Add appropriate support for separate platform-dependent build
4033 directories. The recommended way to make a platform-dependent
4034 build directory is the following (tested on Linux), maybe with
4037 # Place yourself outside of the OpenSSL source tree. In
4038 # this example, the environment variable OPENSSL_SOURCE
4039 # is assumed to contain the absolute OpenSSL source directory.
4040 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4041 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4042 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4043 mkdir -p `dirname $F`
4044 ln -s $OPENSSL_SOURCE/$F $F
4047 To be absolutely sure not to disturb the source tree, a "make clean"
4048 is a good thing. If it isn't successfull, don't worry about it,
4049 it probably means the source directory is very clean.
4052 *) Make sure any ENGINE control commands make local copies of string
4053 pointers passed to them whenever necessary. Otherwise it is possible
4054 the caller may have overwritten (or deallocated) the original string
4055 data when a later ENGINE operation tries to use the stored values.
4056 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4058 *) Improve diagnostics in file reading and command-line digests.
4059 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4061 *) Add AES modes CFB and OFB to the object database. Correct an
4062 error in AES-CFB decryption.
4065 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4066 allows existing EVP_CIPHER_CTX structures to be reused after
4067 calling EVP_*Final(). This behaviour is used by encryption
4068 BIOs and some applications. This has the side effect that
4069 applications must explicitly clean up cipher contexts with
4070 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4073 *) Check the values of dna and dnb in bn_mul_recursive before calling
4074 bn_mul_comba (a non zero value means the a or b arrays do not contain
4075 n2 elements) and fallback to bn_mul_normal if either is not zero.
4078 *) Fix escaping of non-ASCII characters when using the -subj option
4079 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4082 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4083 form for "surname", serialNumber has no short form.
4084 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4085 therefore remove "mail" short name for "internet 7".
4086 The OID for unique identifiers in X509 certificates is
4087 x500UniqueIdentifier, not uniqueIdentifier.
4088 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4091 *) Add an "init" command to the ENGINE config module and auto initialize
4092 ENGINEs. Without any "init" command the ENGINE will be initialized
4093 after all ctrl commands have been executed on it. If init=1 the
4094 ENGINE is initailized at that point (ctrls before that point are run
4095 on the uninitialized ENGINE and after on the initialized one). If
4096 init=0 then the ENGINE will not be iniatialized at all.
4099 *) Fix the 'app_verify_callback' interface so that the user-defined
4100 argument is actually passed to the callback: In the
4101 SSL_CTX_set_cert_verify_callback() prototype, the callback
4102 declaration has been changed from
4105 int (*cb)(X509_STORE_CTX *,void *);
4106 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4107 i=s->ctx->app_verify_callback(&ctx)
4108 has been changed into
4109 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4111 To update applications using SSL_CTX_set_cert_verify_callback(),
4112 a dummy argument can be added to their callback functions.
4113 [D. K. Smetters <smetters@parc.xerox.com>]
4115 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4116 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4118 *) Add and OPENSSL_LOAD_CONF define which will cause
4119 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4120 This allows older applications to transparently support certain
4121 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4122 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4123 load the config file and OPENSSL_add_all_algorithms_conf() which will
4124 always load it have also been added.
4127 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4128 Adjust NIDs and EVP layer.
4129 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4131 *) Config modules support in openssl utility.
4133 Most commands now load modules from the config file,
4134 though in a few (such as version) this isn't done
4135 because it couldn't be used for anything.
4137 In the case of ca and req the config file used is
4138 the same as the utility itself: that is the -config
4139 command line option can be used to specify an
4143 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4144 use "openssl_conf" if filename is NULL use default openssl config file.
4147 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4148 config section name. Add a new flag to tolerate a missing config file
4149 and move code to CONF_modules_load_file().
4152 *) Support for crypto accelerator cards from Accelerated Encryption
4153 Processing, www.aep.ie. (Use engine 'aep')
4154 The support was copied from 0.9.6c [engine] and adapted/corrected
4155 to work with the new engine framework.
4156 [AEP Inc. and Richard Levitte]
4158 *) Support for SureWare crypto accelerator cards from Baltimore
4159 Technologies. (Use engine 'sureware')
4160 The support was copied from 0.9.6c [engine] and adapted
4161 to work with the new engine framework.
4164 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4165 make the newer ENGINE framework commands for the CHIL engine work.
4166 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4168 *) Make it possible to produce shared libraries on ReliantUNIX.
4169 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4171 *) Add the configuration target debug-linux-ppro.
4172 Make 'openssl rsa' use the general key loading routines
4173 implemented in apps.c, and make those routines able to
4174 handle the key format FORMAT_NETSCAPE and the variant
4176 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4178 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4179 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4181 *) Add -keyform to rsautl, and document -engine.
4182 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4184 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4185 BIO_R_NO_SUCH_FILE error code rather than the generic
4186 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4189 *) Add new functions
4191 ERR_peek_last_error_line
4192 ERR_peek_last_error_line_data.
4193 These are similar to
4196 ERR_peek_error_line_data,
4197 but report on the latest error recorded rather than the first one
4198 still in the error queue.
4199 [Ben Laurie, Bodo Moeller]
4201 *) default_algorithms option in ENGINE config module. This allows things
4203 default_algorithms = ALL
4204 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4207 *) Prelminary ENGINE config module.
4210 *) New experimental application configuration code.
4213 *) Change the AES code to follow the same name structure as all other
4214 symmetric ciphers, and behave the same way. Move everything to
4215 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4216 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4218 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4219 [Ben Laurie and Theo de Raadt]
4221 *) Add option to output public keys in req command.
4222 [Massimiliano Pala madwolf@openca.org]
4224 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4225 (up to about 10% better than before for P-192 and P-224).
4228 *) New functions/macros
4230 SSL_CTX_set_msg_callback(ctx, cb)
4231 SSL_CTX_set_msg_callback_arg(ctx, arg)
4232 SSL_set_msg_callback(ssl, cb)
4233 SSL_set_msg_callback_arg(ssl, arg)
4235 to request calling a callback function
4237 void cb(int write_p, int version, int content_type,
4238 const void *buf, size_t len, SSL *ssl, void *arg)
4240 whenever a protocol message has been completely received
4241 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4242 protocol version according to which the SSL library interprets
4243 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4244 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4245 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4246 specification (change_cipher_spec(20), alert(21), handshake(22)).
4247 'buf' and 'len' point to the actual message, 'ssl' to the
4248 SSL object, and 'arg' is the application-defined value set by
4249 SSL[_CTX]_set_msg_callback_arg().
4251 'openssl s_client' and 'openssl s_server' have new '-msg' options
4252 to enable a callback that displays all protocol messages.
4255 *) Change the shared library support so shared libraries are built as
4256 soon as the corresponding static library is finished, and thereby get
4257 openssl and the test programs linked against the shared library.
4258 This still only happens when the keyword "shard" has been given to
4259 the configuration scripts.
4261 NOTE: shared library support is still an experimental thing, and
4262 backward binary compatibility is still not guaranteed.
4263 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4265 *) Add support for Subject Information Access extension.
4266 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4268 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4269 additional bytes when new memory had to be allocated, not just
4270 when reusing an existing buffer.
4273 *) New command line and configuration option 'utf8' for the req command.
4274 This allows field values to be specified as UTF8 strings.
4277 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4278 runs for the former and machine-readable output for the latter.
4281 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4282 of the e-mail address in the DN (i.e., it will go into a certificate
4283 extension only). The new configuration file option 'email_in_dn = no'
4284 has the same effect.
4285 [Massimiliano Pala madwolf@openca.org]
4287 *) Change all functions with names starting with des_ to be starting
4288 with DES_ instead. Add wrappers that are compatible with libdes,
4289 but are named _ossl_old_des_*. Finally, add macros that map the
4290 des_* symbols to the corresponding _ossl_old_des_* if libdes
4291 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4292 desired, the des_* symbols will be mapped to DES_*, with one
4295 Since we provide two compatibility mappings, the user needs to
4296 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4297 compatibility is desired. The default (i.e., when that macro
4298 isn't defined) is OpenSSL 0.9.6c compatibility.
4300 There are also macros that enable and disable the support of old
4301 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4302 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4303 are defined, the default will apply: to support the old des routines.
4305 In either case, one must include openssl/des.h to get the correct
4306 definitions. Do not try to just include openssl/des_old.h, that
4309 NOTE: This is a major break of an old API into a new one. Software
4310 authors are encouraged to switch to the DES_ style functions. Some
4311 time in the future, des_old.h and the libdes compatibility functions
4312 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4313 default), and then completely removed.
4316 *) Test for certificates which contain unsupported critical extensions.
4317 If such a certificate is found during a verify operation it is
4318 rejected by default: this behaviour can be overridden by either
4319 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4320 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4321 X509_supported_extension() has also been added which returns 1 if a
4322 particular extension is supported.
4325 *) Modify the behaviour of EVP cipher functions in similar way to digests
4326 to retain compatibility with existing code.
4329 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4330 compatibility with existing code. In particular the 'ctx' parameter does
4331 not have to be to be initialized before the call to EVP_DigestInit() and
4332 it is tidied up after a call to EVP_DigestFinal(). New function
4333 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4334 EVP_MD_CTX_copy() changed to not require the destination to be
4335 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4336 requires the destination to be valid.
4338 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4339 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4342 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4343 so that complete 'Handshake' protocol structures are kept in memory
4344 instead of overwriting 'msg_type' and 'length' with 'body' data.
4347 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4348 [Massimo Santin via Richard Levitte]
4350 *) Major restructuring to the underlying ENGINE code. This includes
4351 reduction of linker bloat, separation of pure "ENGINE" manipulation
4352 (initialisation, etc) from functionality dealing with implementations
4353 of specific crypto iterfaces. This change also introduces integrated
4354 support for symmetric ciphers and digest implementations - so ENGINEs
4355 can now accelerate these by providing EVP_CIPHER and EVP_MD
4356 implementations of their own. This is detailed in crypto/engine/README
4357 as it couldn't be adequately described here. However, there are a few
4358 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4359 were changed in the original introduction of ENGINE code have now
4360 reverted back - the hooking from this code to ENGINE is now a good
4361 deal more passive and at run-time, operations deal directly with
4362 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4363 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4364 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4365 they were not being used by the framework as there is no concept of a
4366 BIGNUM_METHOD and they could not be generalised to the new
4367 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4368 ENGINE_cpy() has been removed as it cannot be consistently defined in
4372 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4375 *) Change mkdef.pl to sort symbols that get the same entry number,
4376 and make sure the automatically generated functions ERR_load_*
4377 become part of libeay.num as well.
4380 *) New function SSL_renegotiate_pending(). This returns true once
4381 renegotiation has been requested (either SSL_renegotiate() call
4382 or HelloRequest/ClientHello receveived from the peer) and becomes
4383 false once a handshake has been completed.
4384 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4385 sends a HelloRequest, but does not ensure that a handshake takes
4386 place. SSL_renegotiate_pending() is useful for checking if the
4387 client has followed the request.)
4390 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4391 By default, clients may request session resumption even during
4392 renegotiation (if session ID contexts permit); with this option,
4393 session resumption is possible only in the first handshake.
4395 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4396 more bits available for options that should not be part of
4397 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4400 *) Add some demos for certificate and certificate request creation.
4403 *) Make maximum certificate chain size accepted from the peer application
4404 settable (SSL*_get/set_max_cert_list()), as proposed by
4405 "Douglas E. Engert" <deengert@anl.gov>.
4408 *) Add support for shared libraries for Unixware-7
4409 (Boyd Lynn Gerber <gerberb@zenez.com>).
4412 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4413 be done prior to destruction. Use this to unload error strings from
4414 ENGINEs that load their own error strings. NB: This adds two new API
4415 functions to "get" and "set" this destroy handler in an ENGINE.
4418 *) Alter all existing ENGINE implementations (except "openssl" and
4419 "openbsd") to dynamically instantiate their own error strings. This
4420 makes them more flexible to be built both as statically-linked ENGINEs
4421 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4422 Also, add stub code to each that makes building them as self-contained
4423 shared-libraries easier (see README.ENGINE).
4426 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4427 implementations into applications that are completely implemented in
4428 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4429 commands that can be used to configure what shared-library to load and
4430 to control aspects of the way it is handled. Also, made an update to
4431 the README.ENGINE file that brings its information up-to-date and
4432 provides some information and instructions on the "dynamic" ENGINE
4433 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4436 *) Make it possible to unload ranges of ERR strings with a new
4437 "ERR_unload_strings" function.
4440 *) Add a copy() function to EVP_MD.
4443 *) Make EVP_MD routines take a context pointer instead of just the
4444 md_data void pointer.
4447 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4448 that the digest can only process a single chunk of data
4449 (typically because it is provided by a piece of
4450 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4451 is only going to provide a single chunk of data, and hence the
4452 framework needn't accumulate the data for oneshot drivers.
4455 *) As with "ERR", make it possible to replace the underlying "ex_data"
4456 functions. This change also alters the storage and management of global
4457 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4458 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4459 index counters. The API functions that use this state have been changed
4460 to take a "class_index" rather than pointers to the class's local STACK
4461 and counter, and there is now an API function to dynamically create new
4462 classes. This centralisation allows us to (a) plug a lot of the
4463 thread-safety problems that existed, and (b) makes it possible to clean
4464 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4465 such data would previously have always leaked in application code and
4466 workarounds were in place to make the memory debugging turn a blind eye
4467 to it. Application code that doesn't use this new function will still
4468 leak as before, but their memory debugging output will announce it now
4469 rather than letting it slide.
4471 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4472 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4473 has a return value to indicate success or failure.
4476 *) Make it possible to replace the underlying "ERR" functions such that the
4477 global state (2 LHASH tables and 2 locks) is only used by the "default"
4478 implementation. This change also adds two functions to "get" and "set"
4479 the implementation prior to it being automatically set the first time
4480 any other ERR function takes place. Ie. an application can call "get",
4481 pass the return value to a module it has just loaded, and that module
4482 can call its own "set" function using that value. This means the
4483 module's "ERR" operations will use (and modify) the error state in the
4484 application and not in its own statically linked copy of OpenSSL code.
4487 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4488 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4489 the operation, and provides a more encapsulated way for external code
4490 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4491 to use these functions rather than manually incrementing the counts.
4493 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4496 *) Add EVP test program.
4499 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4502 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4503 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4504 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4505 These allow a CRL to be built without having to access X509_CRL fields
4506 directly. Modify 'ca' application to use new functions.
4509 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4510 bug workarounds. Rollback attack detection is a security feature.
4511 The problem will only arise on OpenSSL servers when TLSv1 is not
4512 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4513 Software authors not wanting to support TLSv1 will have special reasons
4514 for their choice and can explicitly enable this option.
4515 [Bodo Moeller, Lutz Jaenicke]
4517 *) Rationalise EVP so it can be extended: don't include a union of
4518 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4519 (similar to those existing for EVP_CIPHER_CTX).
4524 EVP_MD_CTX_init(&md); /* new function call */
4525 EVP_DigestInit(&md, EVP_sha1());
4526 EVP_DigestUpdate(&md, in, len);
4527 EVP_DigestFinal(&md, out, NULL);
4528 EVP_MD_CTX_cleanup(&md); /* new function call */
4532 *) Make DES key schedule conform to the usual scheme, as well as
4533 correcting its structure. This means that calls to DES functions
4534 now have to pass a pointer to a des_key_schedule instead of a
4535 plain des_key_schedule (which was actually always a pointer
4538 des_key_schedule ks;
4540 des_set_key_checked(..., &ks);
4541 des_ncbc_encrypt(..., &ks, ...);
4543 (Note that a later change renames 'des_...' into 'DES_...'.)
4546 *) Initial reduction of linker bloat: the use of some functions, such as
4547 PEM causes large amounts of unused functions to be linked in due to
4548 poor organisation. For example pem_all.c contains every PEM function
4549 which has a knock on effect of linking in large amounts of (unused)
4550 ASN1 code. Grouping together similar functions and splitting unrelated
4551 functions prevents this.
4554 *) Cleanup of EVP macros.
4557 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4558 correct _ecb suffix.
4561 *) Add initial OCSP responder support to ocsp application. The
4562 revocation information is handled using the text based index
4563 use by the ca application. The responder can either handle
4564 requests generated internally, supplied in files (for example
4565 via a CGI script) or using an internal minimal server.
4568 *) Add configuration choices to get zlib compression for TLS.
4571 *) Changes to Kerberos SSL for RFC 2712 compliance:
4572 1. Implemented real KerberosWrapper, instead of just using
4573 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4574 2. Implemented optional authenticator field of KerberosWrapper.
4576 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4577 and authenticator structs; see crypto/krb5/.
4579 Generalized Kerberos calls to support multiple Kerberos libraries.
4580 [Vern Staats <staatsvr@asc.hpc.mil>,
4581 Jeffrey Altman <jaltman@columbia.edu>
4582 via Richard Levitte]
4584 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4585 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4586 values for each of the key sizes rather than having just
4587 parameters (and 'speed' generating keys each time).
4590 *) Speed up EVP routines.
4593 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4594 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4595 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4596 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4598 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4599 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4600 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4603 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4605 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4608 *) Added the OS2-EMX target.
4609 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4611 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4612 to support NCONF routines in extension code. New function CONF_set_nconf()
4613 to allow functions which take an NCONF to also handle the old LHASH
4614 structure: this means that the old CONF compatible routines can be
4615 retained (in particular wrt extensions) without having to duplicate the
4616 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4619 *) Enhance the general user interface with mechanisms for inner control
4620 and with possibilities to have yes/no kind of prompts.
4623 *) Change all calls to low level digest routines in the library and
4624 applications to use EVP. Add missing calls to HMAC_cleanup() and
4625 don't assume HMAC_CTX can be copied using memcpy().
4626 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4628 *) Add the possibility to control engines through control names but with
4629 arbitrary arguments instead of just a string.
4630 Change the key loaders to take a UI_METHOD instead of a callback
4631 function pointer. NOTE: this breaks binary compatibility with earlier
4632 versions of OpenSSL [engine].
4633 Adapt the nCipher code for these new conditions and add a card insertion
4637 *) Enhance the general user interface with mechanisms to better support
4638 dialog box interfaces, application-defined prompts, the possibility
4639 to use defaults (for example default passwords from somewhere else)
4640 and interrupts/cancellations.
4643 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4644 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4647 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4648 tidy up some unnecessarily weird code in 'sk_new()').
4649 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4651 *) Change the key loading routines for ENGINEs to use the same kind
4652 callback (pem_password_cb) as all other routines that need this
4656 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4657 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4658 than this minimum value is recommended.
4661 *) New random seeder for OpenVMS, using the system process statistics
4662 that are easily reachable.
4665 *) Windows apparently can't transparently handle global
4666 variables defined in DLLs. Initialisations such as:
4668 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4670 wont compile. This is used by the any applications that need to
4671 declare their own ASN1 modules. This was fixed by adding the option
4672 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4673 needed for static libraries under Win32.
4676 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4677 setting of purpose and trust fields. New X509_STORE trust and
4678 purpose functions and tidy up setting in other SSL functions.
4681 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4682 structure. These are inherited by X509_STORE_CTX when it is
4683 initialised. This allows various defaults to be set in the
4684 X509_STORE structure (such as flags for CRL checking and custom
4685 purpose or trust settings) for functions which only use X509_STORE_CTX
4686 internally such as S/MIME.
4688 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4689 trust settings if they are not set in X509_STORE. This allows X509_STORE
4690 purposes and trust (in S/MIME for example) to override any set by default.
4692 Add command line options for CRL checking to smime, s_client and s_server
4696 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4697 are set then the CRL is looked up in the X509_STORE structure and
4698 its validity and signature checked, then if the certificate is found
4699 in the CRL the verify fails with a revoked error.
4701 Various new CRL related callbacks added to X509_STORE_CTX structure.
4703 Command line options added to 'verify' application to support this.
4705 This needs some additional work, such as being able to handle multiple
4706 CRLs with different times, extension based lookup (rather than just
4707 by subject name) and ultimately more complete V2 CRL extension
4711 *) Add a general user interface API (crypto/ui/). This is designed
4712 to replace things like des_read_password and friends (backward
4713 compatibility functions using this new API are provided).
4714 The purpose is to remove prompting functions from the DES code
4715 section as well as provide for prompting through dialog boxes in
4716 a window system and the like.
4719 *) Add "ex_data" support to ENGINE so implementations can add state at a
4720 per-structure level rather than having to store it globally.
4723 *) Make it possible for ENGINE structures to be copied when retrieved by
4724 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4725 This causes the "original" ENGINE structure to act like a template,
4726 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4727 operational state can be localised to each ENGINE structure, despite the
4728 fact they all share the same "methods". New ENGINE structures returned in
4729 this case have no functional references and the return value is the single
4730 structural reference. This matches the single structural reference returned
4731 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4735 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4736 needs to match any other type at all we need to manually clear the
4740 *) Changes to the "openssl engine" utility to include;
4741 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4742 about an ENGINE's available control commands.
4743 - executing control commands from command line arguments using the
4744 '-pre' and '-post' switches. '-post' is only used if '-t' is
4745 specified and the ENGINE is successfully initialised. The syntax for
4746 the individual commands are colon-separated, for example;
4747 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4750 *) New dynamic control command support for ENGINEs. ENGINEs can now
4751 declare their own commands (numbers), names (strings), descriptions,
4752 and input types for run-time discovery by calling applications. A
4753 subset of these commands are implicitly classed as "executable"
4754 depending on their input type, and only these can be invoked through
4755 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4756 can be based on user input, config files, etc). The distinction is
4757 that "executable" commands cannot return anything other than a boolean
4758 result and can only support numeric or string input, whereas some
4759 discoverable commands may only be for direct use through
4760 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4761 pointers, or other custom uses. The "executable" commands are to
4762 support parameterisations of ENGINE behaviour that can be
4763 unambiguously defined by ENGINEs and used consistently across any
4764 OpenSSL-based application. Commands have been added to all the
4765 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4766 control over shared-library paths without source code alterations.
4769 *) Changed all ENGINE implementations to dynamically allocate their
4770 ENGINEs rather than declaring them statically. Apart from this being
4771 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4772 this also allows the implementations to compile without using the
4773 internal engine_int.h header.
4776 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4777 'const' value. Any code that should be able to modify a RAND_METHOD
4778 should already have non-const pointers to it (ie. they should only
4779 modify their own ones).
4782 *) Made a variety of little tweaks to the ENGINE code.
4783 - "atalla" and "ubsec" string definitions were moved from header files
4784 to C code. "nuron" string definitions were placed in variables
4785 rather than hard-coded - allowing parameterisation of these values
4786 later on via ctrl() commands.
4787 - Removed unused "#if 0"'d code.
4788 - Fixed engine list iteration code so it uses ENGINE_free() to release
4789 structural references.
4790 - Constified the RAND_METHOD element of ENGINE structures.
4791 - Constified various get/set functions as appropriate and added
4792 missing functions (including a catch-all ENGINE_cpy that duplicates
4793 all ENGINE values onto a new ENGINE except reference counts/state).
4794 - Removed NULL parameter checks in get/set functions. Setting a method
4795 or function to NULL is a way of cancelling out a previously set
4796 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4797 and doesn't justify the extra error symbols and code.
4798 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4799 flags from engine_int.h to engine.h.
4800 - Changed prototypes for ENGINE handler functions (init(), finish(),
4801 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4804 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4805 to the algorithm using long division. The binary algorithm can be
4806 used only if the modulus is odd. On 32-bit systems, it is faster
4807 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4808 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4809 up to 450 bits. In 64-bit environments, the binary algorithm
4810 appears to be advantageous for much longer moduli; here we use it
4811 for moduli up to 2048 bits.
4814 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4815 could not support the combine flag in choice fields.
4818 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4819 extensions from a certificate request to the certificate.
4822 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4823 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4824 file: this allows the display of the certificate about to be
4825 signed to be customised, to allow certain fields to be included
4826 or excluded and extension details. The old system didn't display
4827 multicharacter strings properly, omitted fields not in the policy
4828 and couldn't display additional details such as extensions.
4831 *) Function EC_POINTs_mul for multiple scalar multiplication
4832 of an arbitrary number of elliptic curve points
4833 \sum scalars[i]*points[i],
4834 optionally including the generator defined for the EC_GROUP:
4835 scalar*generator + \sum scalars[i]*points[i].
4837 EC_POINT_mul is a simple wrapper function for the typical case
4838 that the point list has just one item (besides the optional
4842 *) First EC_METHODs for curves over GF(p):
4844 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4845 operations and provides various method functions that can also
4846 operate with faster implementations of modular arithmetic.
4848 EC_GFp_mont_method() reuses most functions that are part of
4849 EC_GFp_simple_method, but uses Montgomery arithmetic.
4851 [Bodo Moeller; point addition and point doubling
4852 implementation directly derived from source code provided by
4853 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4855 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4856 crypto/ec/ec_lib.c):
4858 Curves are EC_GROUP objects (with an optional group generator)
4859 based on EC_METHODs that are built into the library.
4861 Points are EC_POINT objects based on EC_GROUP objects.
4863 Most of the framework would be able to handle curves over arbitrary
4864 finite fields, but as there are no obvious types for fields other
4865 than GF(p), some functions are limited to that for now.
4868 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4869 that the file contains a complete HTTP response.
4872 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4873 change the def and num file printf format specifier from "%-40sXXX"
4874 to "%-39s XXX". The latter will always guarantee a space after the
4875 field while the former will cause them to run together if the field
4876 is 40 of more characters long.
4879 *) Constify the cipher and digest 'method' functions and structures
4880 and modify related functions to take constant EVP_MD and EVP_CIPHER
4884 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4885 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4888 *) Modify EVP_Digest*() routines so they now return values. Although the
4889 internal software routines can never fail additional hardware versions
4893 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4895 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4896 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4899 ERR_R_NESTED_ASN1_ERROR
4901 ERR_R_MISSING_ASN1_EOS
4902 were 4 .. 9, conflicting with
4903 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4905 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4906 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4908 Add new error code 'ERR_R_INTERNAL_ERROR'.
4911 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4915 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4916 sets the subject name for a new request or supersedes the
4917 subject name in a given request. Formats that can be parsed are
4918 'CN=Some Name, OU=myOU, C=IT'
4920 'CN=Some Name/OU=myOU/C=IT'.
4922 Add options '-batch' and '-verbose' to 'openssl req'.
4923 [Massimiliano Pala <madwolf@hackmasters.net>]
4925 *) Introduce the possibility to access global variables through
4926 functions on platform were that's the best way to handle exporting
4927 global variables in shared libraries. To enable this functionality,
4928 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4929 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4930 is normally done by Configure or something similar).
4932 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4933 in the source file (foo.c) like this:
4935 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4936 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4938 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4939 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4941 OPENSSL_DECLARE_GLOBAL(int,foo);
4942 #define foo OPENSSL_GLOBAL_REF(foo)
4943 OPENSSL_DECLARE_GLOBAL(double,bar);
4944 #define bar OPENSSL_GLOBAL_REF(bar)
4946 The #defines are very important, and therefore so is including the
4947 header file everywhere where the defined globals are used.
4949 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4950 of ASN.1 items, but that structure is a bit different.
4952 The largest change is in util/mkdef.pl which has been enhanced with
4953 better and easier to understand logic to choose which symbols should
4954 go into the Windows .def files as well as a number of fixes and code
4955 cleanup (among others, algorithm keywords are now sorted
4956 lexicographically to avoid constant rewrites).
4959 *) In BN_div() keep a copy of the sign of 'num' before writing the
4960 result to 'rm' because if rm==num the value will be overwritten
4961 and produce the wrong result if 'num' is negative: this caused
4962 problems with BN_mod() and BN_nnmod().
4965 *) Function OCSP_request_verify(). This checks the signature on an
4966 OCSP request and verifies the signer certificate. The signer
4967 certificate is just checked for a generic purpose and OCSP request
4971 *) Add OCSP_check_validity() function to check the validity of OCSP
4972 responses. OCSP responses are prepared in real time and may only
4973 be a few seconds old. Simply checking that the current time lies
4974 between thisUpdate and nextUpdate max reject otherwise valid responses
4975 caused by either OCSP responder or client clock inaccuracy. Instead
4976 we allow thisUpdate and nextUpdate to fall within a certain period of
4977 the current time. The age of the response can also optionally be
4978 checked. Two new options -validity_period and -status_age added to
4982 *) If signature or public key algorithm is unrecognized print out its
4983 OID rather that just UNKNOWN.
4986 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4987 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4988 ID to be generated from the issuer certificate alone which can then be
4989 passed to OCSP_id_issuer_cmp().
4992 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4993 ASN1 modules to export functions returning ASN1_ITEM pointers
4994 instead of the ASN1_ITEM structures themselves. This adds several
4995 new macros which allow the underlying ASN1 function/structure to
4996 be accessed transparently. As a result code should not use ASN1_ITEM
4997 references directly (such as &X509_it) but instead use the relevant
4998 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4999 use of the new ASN1 code on platforms where exporting structures
5000 is problematical (for example in shared libraries) but exporting
5001 functions returning pointers to structures is not.
5004 *) Add support for overriding the generation of SSL/TLS session IDs.
5005 These callbacks can be registered either in an SSL_CTX or per SSL.
5006 The purpose of this is to allow applications to control, if they wish,
5007 the arbitrary values chosen for use as session IDs, particularly as it
5008 can be useful for session caching in multiple-server environments. A
5009 command-line switch for testing this (and any client code that wishes
5010 to use such a feature) has been added to "s_server".
5011 [Geoff Thorpe, Lutz Jaenicke]
5013 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5014 of the form '#if defined(...) || defined(...) || ...' and
5015 '#if !defined(...) && !defined(...) && ...'. This also avoids
5016 the growing number of special cases it was previously handling.
5019 *) Make all configuration macros available for application by making
5020 sure they are available in opensslconf.h, by giving them names starting
5021 with "OPENSSL_" to avoid conflicts with other packages and by making
5022 sure e_os2.h will cover all platform-specific cases together with
5024 Additionally, it is now possible to define configuration/platform-
5025 specific names (called "system identities"). In the C code, these
5026 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5027 macro with the name beginning with "OPENSSL_SYS_", which is determined
5028 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5032 *) New option -set_serial to 'req' and 'x509' this allows the serial
5033 number to use to be specified on the command line. Previously self
5034 signed certificates were hard coded with serial number 0 and the
5035 CA options of 'x509' had to use a serial number in a file which was
5039 *) New options to 'ca' utility to support V2 CRL entry extensions.
5040 Currently CRL reason, invalidity date and hold instruction are
5041 supported. Add new CRL extensions to V3 code and some new objects.
5044 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5045 disable standard block padding (aka PKCS#5 padding) in the EVP
5046 API, which was previously mandatory. This means that the data is
5047 not padded in any way and so the total length much be a multiple
5048 of the block size, otherwise an error occurs.
5051 *) Initial (incomplete) OCSP SSL support.
5054 *) New function OCSP_parse_url(). This splits up a URL into its host,
5055 port and path components: primarily to parse OCSP URLs. New -url
5056 option to ocsp utility.
5059 *) New nonce behavior. The return value of OCSP_check_nonce() now
5060 reflects the various checks performed. Applications can decide
5061 whether to tolerate certain situations such as an absent nonce
5062 in a response when one was present in a request: the ocsp application
5063 just prints out a warning. New function OCSP_add1_basic_nonce()
5064 this is to allow responders to include a nonce in a response even if
5065 the request is nonce-less.
5068 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5069 skipped when using openssl x509 multiple times on a single input file,
5070 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5073 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5074 set string type: to handle setting ASN1_TIME structures. Fix ca
5075 utility to correctly initialize revocation date of CRLs.
5078 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5079 the clients preferred ciphersuites and rather use its own preferences.
5080 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5081 Internet Explorer by ensuring unchanged hash method during stepup.
5082 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5085 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5086 to aes and add a new 'exist' option to print out symbols that don't
5090 *) Additional options to ocsp utility to allow flags to be set and
5091 additional certificates supplied.
5094 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5095 OCSP client a number of certificate to only verify the response
5099 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5100 handle the new API. Currently only ECB, CBC modes supported. Add new
5103 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5104 Encryption Standard (AES) Ciphersuites for Transport Layer
5105 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5106 not enabled by default and were not part of the "ALL" ciphersuite
5107 alias because they were not yet official; they could be
5108 explicitly requested by specifying the "AESdraft" ciphersuite
5109 group alias. In the final release of OpenSSL 0.9.7, the group
5110 alias is called "AES" and is part of "ALL".)
5111 [Ben Laurie, Steve Henson, Bodo Moeller]
5113 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5114 request to response.
5117 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5118 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5119 extract information from a certificate request. OCSP_response_create()
5120 creates a response and optionally adds a basic response structure.
5121 OCSP_basic_add1_status() adds a complete single response to a basic
5122 response and returns the OCSP_SINGLERESP structure just added (to allow
5123 extensions to be included for example). OCSP_basic_add1_cert() adds a
5124 certificate to a basic response and OCSP_basic_sign() signs a basic
5125 response with various flags. New helper functions ASN1_TIME_check()
5126 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5127 (converts ASN1_TIME to GeneralizedTime).
5130 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5131 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5132 structure from a certificate. X509_pubkey_digest() digests the public_key
5133 contents: this is used in various key identifiers.
5136 *) Make sk_sort() tolerate a NULL argument.
5137 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5139 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5140 passed by the function are trusted implicitly. If any of them signed the
5141 response then it is assumed to be valid and is not verified.
5144 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5145 to data. This was previously part of the PKCS7 ASN1 code. This
5146 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5147 [Steve Henson, reported by Kenneth R. Robinette
5148 <support@securenetterm.com>]
5150 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5151 routines: without these tracing memory leaks is very painful.
5152 Fix leaks in PKCS12 and PKCS7 routines.
5155 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5156 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5157 effectively meant GeneralizedTime would never be used. Now it
5158 is initialised to -1 but X509_time_adj() now has to check the value
5159 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5160 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5161 [Steve Henson, reported by Kenneth R. Robinette
5162 <support@securenetterm.com>]
5164 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5165 result in a zero length in the ASN1_INTEGER structure which was
5166 not consistent with the structure when d2i_ASN1_INTEGER() was used
5167 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5168 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5169 where it did not print out a minus for negative ASN1_INTEGER.
5172 *) Add summary printout to ocsp utility. The various functions which
5173 convert status values to strings have been renamed to:
5174 OCSP_response_status_str(), OCSP_cert_status_str() and
5175 OCSP_crl_reason_str() and are no longer static. New options
5176 to verify nonce values and to disable verification. OCSP response
5177 printout format cleaned up.
5180 *) Add additional OCSP certificate checks. These are those specified
5181 in RFC2560. This consists of two separate checks: the CA of the
5182 certificate being checked must either be the OCSP signer certificate
5183 or the issuer of the OCSP signer certificate. In the latter case the
5184 OCSP signer certificate must contain the OCSP signing extended key
5185 usage. This check is performed by attempting to match the OCSP
5186 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5187 in the OCSP_CERTID structures of the response.
5190 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5191 and related routines. This uses the standard OpenSSL certificate
5192 verify routines to perform initial checks (just CA validity) and
5193 to obtain the certificate chain. Then additional checks will be
5194 performed on the chain. Currently the root CA is checked to see
5195 if it is explicitly trusted for OCSP signing. This is used to set
5196 a root CA as a global signing root: that is any certificate that
5197 chains to that CA is an acceptable OCSP signing certificate.
5200 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5201 extensions from a separate configuration file.
5202 As when reading extensions from the main configuration file,
5203 the '-extensions ...' option may be used for specifying the
5205 [Massimiliano Pala <madwolf@comune.modena.it>]
5207 *) New OCSP utility. Allows OCSP requests to be generated or
5208 read. The request can be sent to a responder and the output
5209 parsed, outputed or printed in text form. Not complete yet:
5210 still needs to check the OCSP response validity.
5213 *) New subcommands for 'openssl ca':
5214 'openssl ca -status <serial>' prints the status of the cert with
5215 the given serial number (according to the index file).
5216 'openssl ca -updatedb' updates the expiry status of certificates
5218 [Massimiliano Pala <madwolf@comune.modena.it>]
5220 *) New '-newreq-nodes' command option to CA.pl. This is like
5221 '-newreq', but calls 'openssl req' with the '-nodes' option
5222 so that the resulting key is not encrypted.
5223 [Damien Miller <djm@mindrot.org>]
5225 *) New configuration for the GNU Hurd.
5226 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5228 *) Initial code to implement OCSP basic response verify. This
5229 is currently incomplete. Currently just finds the signer's
5230 certificate and verifies the signature on the response.
5233 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5234 value of OPENSSLDIR. This is available via the new '-d' option
5235 to 'openssl version', and is also included in 'openssl version -a'.
5238 *) Allowing defining memory allocation callbacks that will be given
5239 file name and line number information in additional arguments
5240 (a const char* and an int). The basic functionality remains, as
5241 well as the original possibility to just replace malloc(),
5242 realloc() and free() by functions that do not know about these
5243 additional arguments. To register and find out the current
5244 settings for extended allocation functions, the following
5245 functions are provided:
5247 CRYPTO_set_mem_ex_functions
5248 CRYPTO_set_locked_mem_ex_functions
5249 CRYPTO_get_mem_ex_functions
5250 CRYPTO_get_locked_mem_ex_functions
5252 These work the same way as CRYPTO_set_mem_functions and friends.
5253 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5254 extended allocation function is enabled.
5255 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5256 a conventional allocation function is enabled.
5257 [Richard Levitte, Bodo Moeller]
5259 *) Finish off removing the remaining LHASH function pointer casts.
5260 There should no longer be any prototype-casting required when using
5261 the LHASH abstraction, and any casts that remain are "bugs". See
5262 the callback types and macros at the head of lhash.h for details
5263 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5266 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5267 If /dev/[u]random devices are not available or do not return enough
5268 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5270 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5271 /etc/entropy will be queried once each in this sequence, quering stops
5272 when enough entropy was collected without querying more sockets.
5275 *) Change the Unix RAND_poll() variant to be able to poll several
5276 random devices, as specified by DEVRANDOM, until a sufficient amount
5277 of data has been collected. We spend at most 10 ms on each file
5278 (select timeout) and read in non-blocking mode. DEVRANDOM now
5279 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5280 (previously it was just the string "/dev/urandom"), so on typical
5281 platforms the 10 ms delay will never occur.
5282 Also separate out the Unix variant to its own file, rand_unix.c.
5283 For VMS, there's a currently-empty rand_vms.c.
5286 *) Move OCSP client related routines to ocsp_cl.c. These
5287 provide utility functions which an application needing
5288 to issue a request to an OCSP responder and analyse the
5289 response will typically need: as opposed to those which an
5290 OCSP responder itself would need which will be added later.
5292 OCSP_request_sign() signs an OCSP request with an API similar
5293 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5294 response. OCSP_response_get1_basic() extracts basic response
5295 from response. OCSP_resp_find_status(): finds and extracts status
5296 information from an OCSP_CERTID structure (which will be created
5297 when the request structure is built). These are built from lower
5298 level functions which work on OCSP_SINGLERESP structures but
5299 wont normally be used unless the application wishes to examine
5300 extensions in the OCSP response for example.
5302 Replace nonce routines with a pair of functions.
5303 OCSP_request_add1_nonce() adds a nonce value and optionally
5304 generates a random value. OCSP_check_nonce() checks the
5305 validity of the nonce in an OCSP response.
5308 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5309 This doesn't copy the supplied OCSP_CERTID and avoids the
5310 need to free up the newly created id. Change return type
5311 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5312 This can then be used to add extensions to the request.
5313 Deleted OCSP_request_new(), since most of its functionality
5314 is now in OCSP_REQUEST_new() (and the case insensitive name
5315 clash) apart from the ability to set the request name which
5316 will be added elsewhere.
5319 *) Update OCSP API. Remove obsolete extensions argument from
5320 various functions. Extensions are now handled using the new
5321 OCSP extension code. New simple OCSP HTTP function which
5322 can be used to send requests and parse the response.
5325 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5326 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5327 uses the special reorder version of SET OF to sort the attributes
5328 and reorder them to match the encoded order. This resolves a long
5329 standing problem: a verify on a PKCS7 structure just after signing
5330 it used to fail because the attribute order did not match the
5331 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5332 it uses the received order. This is necessary to tolerate some broken
5333 software that does not order SET OF. This is handled by encoding
5334 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5335 to produce the required SET OF.
5338 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5339 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5340 files to get correct declarations of the ASN.1 item variables.
5343 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5344 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5345 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5346 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5347 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5348 ASN1_ITEM and no wrapper functions.
5351 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5352 replace the old function pointer based I/O routines. Change most of
5353 the *_d2i_bio() and *_d2i_fp() functions to use these.
5356 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5357 lines, recognice more "algorithms" that can be deselected, and make
5358 it complain about algorithm deselection that isn't recognised.
5361 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5362 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5363 to use new functions. Add NO_ASN1_OLD which can be set to remove
5364 some old style ASN1 functions: this can be used to determine if old
5365 code will still work when these eventually go away.
5368 *) New extension functions for OCSP structures, these follow the
5369 same conventions as certificates and CRLs.
5372 *) New function X509V3_add1_i2d(). This automatically encodes and
5373 adds an extension. Its behaviour can be customised with various
5374 flags to append, replace or delete. Various wrappers added for
5375 certifcates and CRLs.
5378 *) Fix to avoid calling the underlying ASN1 print routine when
5379 an extension cannot be parsed. Correct a typo in the
5380 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5383 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5384 entries for variables.
5387 *) Add functionality to apps/openssl.c for detecting locking
5388 problems: As the program is single-threaded, all we have
5389 to do is register a locking callback using an array for
5390 storing which locks are currently held by the program.
5393 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5394 SSL_get_ex_data_X509_STORE_idx(), which is used in
5395 ssl_verify_cert_chain() and thus can be called at any time
5396 during TLS/SSL handshakes so that thread-safety is essential.
5397 Unfortunately, the ex_data design is not at all suited
5398 for multi-threaded use, so it probably should be abolished.
5401 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5402 [Broadcom, tweaked and integrated by Geoff Thorpe]
5404 *) Move common extension printing code to new function
5405 X509V3_print_extensions(). Reorganise OCSP print routines and
5406 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5409 *) New function X509_signature_print() to remove duplication in some
5413 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5414 set (this was treated exactly the same as SET OF previously). This
5415 is used to reorder the STACK representing the structure to match the
5416 encoding. This will be used to get round a problem where a PKCS7
5417 structure which was signed could not be verified because the STACK
5418 order did not reflect the encoded order.
5421 *) Reimplement the OCSP ASN1 module using the new code.
5424 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5425 for its ASN1 operations. The old style function pointers still exist
5426 for now but they will eventually go away.
5429 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5430 completely replaces the old ASN1 functionality with a table driven
5431 encoder and decoder which interprets an ASN1_ITEM structure describing
5432 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5433 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5434 has also been converted to the new form.
5437 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5438 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5439 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5440 for negative moduli.
5443 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5444 of not touching the result's sign bit.
5447 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5451 *) Changed the LHASH code to use prototypes for callbacks, and created
5452 macros to declare and implement thin (optionally static) functions
5453 that provide type-safety and avoid function pointer casting for the
5454 type-specific callbacks.
5457 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5459 [Veers Staats <staatsvr@asc.hpc.mil>,
5460 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5462 *) Reformat the FAQ so the different questions and answers can be divided
5463 in sections depending on the subject.
5466 *) Have the zlib compression code load ZLIB.DLL dynamically under
5470 *) New function BN_mod_sqrt for computing square roots modulo a prime
5471 (using the probabilistic Tonelli-Shanks algorithm unless
5472 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5473 be handled deterministically).
5474 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5476 *) Make BN_mod_inverse faster by explicitly handling small quotients
5477 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5478 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5481 *) New function BN_kronecker.
5484 *) Fix BN_gcd so that it works on negative inputs; the result is
5485 positive unless both parameters are zero.
5486 Previously something reasonably close to an infinite loop was
5487 possible because numbers could be growing instead of shrinking
5488 in the implementation of Euclid's algorithm.
5491 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5492 sign of the number in question.
5494 Fix BN_is_word(a,w) to work correctly for w == 0.
5496 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5497 because its test if the absolute value of 'a' equals 'w'.
5498 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5499 it exists mostly for use in the implementations of BN_is_zero(),
5500 BN_is_one(), and BN_is_word().
5503 *) New function BN_swap.
5506 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5507 the exponentiation functions are more likely to produce reasonable
5508 results on negative inputs.
5511 *) Change BN_mod_mul so that the result is always non-negative.
5512 Previously, it could be negative if one of the factors was negative;
5513 I don't think anyone really wanted that behaviour.
5516 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5517 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5518 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5519 and add new functions:
5528 BN_mod_lshift1_quick
5532 These functions always generate non-negative results.
5534 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5535 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5537 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5538 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5539 be reduced modulo m.
5540 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5543 The following entry accidentily appeared in the CHANGES file
5544 distributed with OpenSSL 0.9.7. The modifications described in
5545 it do *not* apply to OpenSSL 0.9.7.
5547 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5548 was actually never needed) and in BN_mul(). The removal in BN_mul()
5549 required a small change in bn_mul_part_recursive() and the addition
5550 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5551 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5552 bn_sub_words() and bn_add_words() except they take arrays with
5557 *) In 'openssl passwd', verify passwords read from the terminal
5558 unless the '-salt' option is used (which usually means that
5559 verification would just waste user's time since the resulting
5560 hash is going to be compared with some given password hash)
5561 or the new '-noverify' option is used.
5563 This is an incompatible change, but it does not affect
5564 non-interactive use of 'openssl passwd' (passwords on the command
5565 line, '-stdin' option, '-in ...' option) and thus should not
5569 *) Remove all references to RSAref, since there's no more need for it.
5572 *) Make DSO load along a path given through an environment variable
5573 (SHLIB_PATH) with shl_load().
5576 *) Constify the ENGINE code as a result of BIGNUM constification.
5577 Also constify the RSA code and most things related to it. In a
5578 few places, most notable in the depth of the ASN.1 code, ugly
5579 casts back to non-const were required (to be solved at a later
5583 *) Make it so the openssl application has all engines loaded by default.
5586 *) Constify the BIGNUM routines a little more.
5589 *) Add the following functions:
5591 ENGINE_load_cswift()
5593 ENGINE_load_atalla()
5595 ENGINE_load_builtin_engines()
5597 That way, an application can itself choose if external engines that
5598 are built-in in OpenSSL shall ever be used or not. The benefit is
5599 that applications won't have to be linked with libdl or other dso
5600 libraries unless it's really needed.
5602 Changed 'openssl engine' to load all engines on demand.
5603 Changed the engine header files to avoid the duplication of some
5604 declarations (they differed!).
5607 *) 'openssl engine' can now list capabilities.
5610 *) Better error reporting in 'openssl engine'.
5613 *) Never call load_dh_param(NULL) in s_server.
5616 *) Add engine application. It can currently list engines by name and
5617 identity, and test if they are actually available.
5620 *) Improve RPM specification file by forcing symbolic linking and making
5621 sure the installed documentation is also owned by root.root.
5622 [Damien Miller <djm@mindrot.org>]
5624 *) Give the OpenSSL applications more possibilities to make use of
5625 keys (public as well as private) handled by engines.
5628 *) Add OCSP code that comes from CertCo.
5631 *) Add VMS support for the Rijndael code.
5634 *) Added untested support for Nuron crypto accelerator.
5637 *) Add support for external cryptographic devices. This code was
5638 previously distributed separately as the "engine" branch.
5639 [Geoff Thorpe, Richard Levitte]
5641 *) Rework the filename-translation in the DSO code. It is now possible to
5642 have far greater control over how a "name" is turned into a filename
5643 depending on the operating environment and any oddities about the
5644 different shared library filenames on each system.
5647 *) Support threads on FreeBSD-elf in Configure.
5650 *) Fix for SHA1 assembly problem with MASM: it produces
5651 warnings about corrupt line number information when assembling
5652 with debugging information. This is caused by the overlapping
5654 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5657 NCONF_get_number() has no error checking at all. As a replacement,
5658 NCONF_get_number_e() is defined (_e for "error checking") and is
5659 promoted strongly. The old NCONF_get_number is kept around for
5660 binary backward compatibility.
5661 Make it possible for methods to load from something other than a BIO,
5662 by providing a function pointer that is given a name instead of a BIO.
5663 For example, this could be used to load configuration data from an
5667 *) Fix for non blocking accept BIOs. Added new I/O special reason
5668 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5669 with non blocking I/O was not possible because no retry code was
5670 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5674 *) Added the beginnings of Rijndael support.
5677 *) Fix for bug in DirectoryString mask setting. Add support for
5678 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5679 to allow certificate printing to more controllable, additional
5680 'certopt' option to 'x509' to allow new printing options to be
5684 *) Clean old EAY MD5 hack from e_os.h.
5687 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5689 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5690 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5691 [Joe Orton, Steve Henson]
5693 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5695 *) Fix additional bug revealed by the NISCC test suite:
5697 Stop bug triggering large recursion when presented with
5698 certain ASN.1 tags (CVE-2003-0851)
5701 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5703 *) Fix various bugs revealed by running the NISCC test suite:
5705 Stop out of bounds reads in the ASN1 code when presented with
5706 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5708 If verify callback ignores invalid public key errors don't try to check
5709 certificate signature with the NULL public key.
5713 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5714 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5718 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5719 extra data after the compression methods not only for TLS 1.0
5720 but also for SSL 3.0 (as required by the specification).
5721 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5723 *) Change X509_certificate_type() to mark the key as exported/exportable
5724 when it's 512 *bits* long, not 512 bytes.
5727 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5729 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5730 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5731 a protocol version number mismatch like a decryption error
5732 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5735 *) Turn on RSA blinding by default in the default implementation
5736 to avoid a timing attack. Applications that don't want it can call
5737 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5738 They would be ill-advised to do so in most cases.
5739 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5741 *) Change RSA blinding code so that it works when the PRNG is not
5742 seeded (in this case, the secret RSA exponent is abused as
5743 an unpredictable seed -- if it is not unpredictable, there
5744 is no point in blinding anyway). Make RSA blinding thread-safe
5745 by remembering the creator's thread ID in rsa->blinding and
5746 having all other threads use local one-time blinding factors
5747 (this requires more computation than sharing rsa->blinding, but
5748 avoids excessive locking; and if an RSA object is not shared
5749 between threads, blinding will still be very fast).
5752 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5754 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5755 via timing by performing a MAC computation even if incorrrect
5756 block cipher padding has been found. This is a countermeasure
5757 against active attacks where the attacker has to distinguish
5758 between bad padding and a MAC verification error. (CVE-2003-0078)
5760 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5761 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5762 Martin Vuagnoux (EPFL, Ilion)]
5764 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5766 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5767 memory from it's contents. This is done with a counter that will
5768 place alternating values in each byte. This can be used to solve
5769 two issues: 1) the removal of calls to memset() by highly optimizing
5770 compilers, and 2) cleansing with other values than 0, since those can
5771 be read through on certain media, for example a swap space on disk.
5774 *) Bugfix: client side session caching did not work with external caching,
5775 because the session->cipher setting was not restored when reloading
5776 from the external cache. This problem was masked, when
5777 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5778 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5781 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5782 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5783 [Zeev Lieber <zeev-l@yahoo.com>]
5785 *) Undo an undocumented change introduced in 0.9.6e which caused
5786 repeated calls to OpenSSL_add_all_ciphers() and
5787 OpenSSL_add_all_digests() to be ignored, even after calling
5791 *) Change the default configuration reader to deal with last line not
5792 being properly terminated.
5795 *) Change X509_NAME_cmp() so it applies the special rules on handling
5796 DN values that are of type PrintableString, as well as RDNs of type
5797 emailAddress where the value has the type ia5String.
5798 [stefank@valicert.com via Richard Levitte]
5800 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5801 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5802 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5803 the bitwise-OR of the two for use by the majority of applications
5804 wanting this behaviour, and update the docs. The documented
5805 behaviour and actual behaviour were inconsistent and had been
5806 changing anyway, so this is more a bug-fix than a behavioural
5808 [Geoff Thorpe, diagnosed by Nadav Har'El]
5810 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5811 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5814 *) Fix initialization code race conditions in
5815 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5816 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5817 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5818 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5819 ssl2_get_cipher_by_char(),
5820 ssl3_get_cipher_by_char().
5821 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5823 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5824 the cached sessions are flushed, as the remove_cb() might use ex_data
5825 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5826 (see [openssl.org #212]).
5827 [Geoff Thorpe, Lutz Jaenicke]
5829 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5830 length, instead of the encoding length to d2i_ASN1_OBJECT.
5833 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5835 *) [In 0.9.6g-engine release:]
5836 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5837 [Lynn Gazis <lgazis@rainbow.com>]
5839 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5841 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5842 and get fix the header length calculation.
5843 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5844 Alon Kantor <alonk@checkpoint.com> (and others),
5847 *) Use proper error handling instead of 'assertions' in buffer
5848 overflow checks added in 0.9.6e. This prevents DoS (the
5849 assertions could call abort()).
5850 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5852 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5854 *) Add various sanity checks to asn1_get_length() to reject
5855 the ASN1 length bytes if they exceed sizeof(long), will appear
5856 negative or the content length exceeds the length of the
5858 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5860 *) Fix cipher selection routines: ciphers without encryption had no flags
5861 for the cipher strength set and where therefore not handled correctly
5862 by the selection routines (PR #130).
5865 *) Fix EVP_dsa_sha macro.
5869 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5870 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5871 that was added in OpenSSL 0.9.6d.
5873 As the countermeasure turned out to be incompatible with some
5874 broken SSL implementations, the new option is part of SSL_OP_ALL.
5875 SSL_OP_ALL is usually employed when compatibility with weird SSL
5876 implementations is desired (e.g. '-bugs' option to 's_client' and
5877 's_server'), so the new option is automatically set in many
5881 *) Changes in security patch:
5883 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5884 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5885 Air Force Materiel Command, USAF, under agreement number
5888 *) Add various sanity checks to asn1_get_length() to reject
5889 the ASN1 length bytes if they exceed sizeof(long), will appear
5890 negative or the content length exceeds the length of the
5891 supplied buffer. (CVE-2002-0659)
5892 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5894 *) Assertions for various potential buffer overflows, not known to
5896 [Ben Laurie (CHATS)]
5898 *) Various temporary buffers to hold ASCII versions of integers were
5899 too small for 64 bit platforms. (CVE-2002-0655)
5900 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5902 *) Remote buffer overflow in SSL3 protocol - an attacker could
5903 supply an oversized session ID to a client. (CVE-2002-0656)
5904 [Ben Laurie (CHATS)]
5906 *) Remote buffer overflow in SSL2 protocol - an attacker could
5907 supply an oversized client master key. (CVE-2002-0656)
5908 [Ben Laurie (CHATS)]
5910 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5912 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5913 encoded as NULL) with id-dsa-with-sha1.
5914 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5916 *) Check various X509_...() return values in apps/req.c.
5917 [Nils Larsch <nla@trustcenter.de>]
5919 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5920 an end-of-file condition would erronously be flagged, when the CRLF
5921 was just at the end of a processed block. The bug was discovered when
5922 processing data through a buffering memory BIO handing the data to a
5923 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5924 <ptsekov@syntrex.com> and Nedelcho Stanev.
5927 *) Implement a countermeasure against a vulnerability recently found
5928 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5929 before application data chunks to avoid the use of known IVs
5930 with data potentially chosen by the attacker.
5933 *) Fix length checks in ssl3_get_client_hello().
5936 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5937 to prevent ssl3_read_internal() from incorrectly assuming that
5938 ssl3_read_bytes() found application data while handshake
5939 processing was enabled when in fact s->s3->in_read_app_data was
5940 merely automatically cleared during the initial handshake.
5941 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5943 *) Fix object definitions for Private and Enterprise: they were not
5944 recognized in their shortname (=lowercase) representation. Extend
5945 obj_dat.pl to issue an error when using undefined keywords instead
5946 of silently ignoring the problem (Svenning Sorensen
5947 <sss@sss.dnsalias.net>).
5950 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5951 generators, i.e. generators other than 2 and 5. (Previously, the
5952 code did not properly initialise the 'add' and 'rem' values to
5953 BN_generate_prime().)
5955 In the new general case, we do not insist that 'generator' is
5956 actually a primitive root: This requirement is rather pointless;
5957 a generator of the order-q subgroup is just as good, if not
5961 *) Map new X509 verification errors to alerts. Discovered and submitted by
5962 Tom Wu <tom@arcot.com>.
5965 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5966 returning non-zero before the data has been completely received
5967 when using non-blocking I/O.
5968 [Bodo Moeller; problem pointed out by John Hughes]
5970 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5971 [Ben Laurie, Lutz Jaenicke]
5973 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5974 Yoram Zahavi <YoramZ@gilian.com>).
5977 *) Add information about CygWin 1.3 and on, and preserve proper
5978 configuration for the versions before that.
5979 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5981 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5982 check whether we deal with a copy of a session and do not delete from
5983 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5984 <izhar@checkpoint.com>.
5987 *) Do not store session data into the internal session cache, if it
5988 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5989 flag is set). Proposed by Aslam <aslam@funk.com>.
5992 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5996 *) [In 0.9.6d-engine release:]
5997 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5998 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6000 *) Add the configuration target linux-s390x.
6001 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6003 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6004 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6005 variable as an indication that a ClientHello message has been
6006 received. As the flag value will be lost between multiple
6007 invocations of ssl3_accept when using non-blocking I/O, the
6008 function may not be aware that a handshake has actually taken
6009 place, thus preventing a new session from being added to the
6012 To avoid this problem, we now set s->new_session to 2 instead of
6013 using a local variable.
6014 [Lutz Jaenicke, Bodo Moeller]
6016 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6017 if the SSL_R_LENGTH_MISMATCH error is detected.
6018 [Geoff Thorpe, Bodo Moeller]
6020 *) New 'shared_ldflag' column in Configure platform table.
6023 *) Fix EVP_CIPHER_mode macro.
6024 ["Dan S. Camper" <dan@bti.net>]
6026 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6027 type, we must throw them away by setting rr->length to 0.
6028 [D P Chang <dpc@qualys.com>]
6030 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6032 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6033 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6034 worked incorrectly for those cases where range = 10..._2 and
6035 3*range is two bits longer than range.)
6038 *) Only add signing time to PKCS7 structures if it is not already
6042 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6043 OBJ_ld_ce should be OBJ_id_ce.
6044 Also some ip-pda OIDs in crypto/objects/objects.txt were
6045 incorrect (cf. RFC 3039).
6046 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6048 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6049 returns early because it has nothing to do.
6050 [Andy Schneider <andy.schneider@bjss.co.uk>]
6052 *) [In 0.9.6c-engine release:]
6053 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6054 [Andy Schneider <andy.schneider@bjss.co.uk>]
6056 *) [In 0.9.6c-engine release:]
6057 Add support for Cryptographic Appliance's keyserver technology.
6058 (Use engine 'keyclient')
6059 [Cryptographic Appliances and Geoff Thorpe]
6061 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6062 is called via tools/c89.sh because arguments have to be
6063 rearranged (all '-L' options must appear before the first object
6065 [Richard Shapiro <rshapiro@abinitio.com>]
6067 *) [In 0.9.6c-engine release:]
6068 Add support for Broadcom crypto accelerator cards, backported
6070 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6072 *) [In 0.9.6c-engine release:]
6073 Add support for SureWare crypto accelerator cards from
6074 Baltimore Technologies. (Use engine 'sureware')
6075 [Baltimore Technologies and Mark Cox]
6077 *) [In 0.9.6c-engine release:]
6078 Add support for crypto accelerator cards from Accelerated
6079 Encryption Processing, www.aep.ie. (Use engine 'aep')
6080 [AEP Inc. and Mark Cox]
6082 *) Add a configuration entry for gcc on UnixWare.
6083 [Gary Benson <gbenson@redhat.com>]
6085 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6086 messages are stored in a single piece (fixed-length part and
6087 variable-length part combined) and fix various bugs found on the way.
6090 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6091 instead. BIO_gethostbyname() does not know what timeouts are
6092 appropriate, so entries would stay in cache even when they have
6094 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6096 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6097 faced with a pathologically small ClientHello fragment that does
6098 not contain client_version: Instead of aborting with an error,
6099 simply choose the highest available protocol version (i.e.,
6100 TLS 1.0 unless it is disabled). In practice, ClientHello
6101 messages are never sent like this, but this change gives us
6102 strictly correct behaviour at least for TLS.
6105 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6106 never resets s->method to s->ctx->method when called from within
6107 one of the SSL handshake functions.
6108 [Bodo Moeller; problem pointed out by Niko Baric]
6110 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6111 (sent using the client's version number) if client_version is
6112 smaller than the protocol version in use. Also change
6113 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6114 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6115 the client will at least see that alert.
6118 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6122 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6123 client receives HelloRequest while in a handshake.
6124 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6126 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6127 should end in 'break', not 'goto end' which circuments various
6128 cleanups done in state SSL_ST_OK. But session related stuff
6129 must be disabled for SSL_ST_OK in the case that we just sent a
6132 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6133 before just sending a HelloRequest.
6134 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6136 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6137 reveal whether illegal block cipher padding was found or a MAC
6138 verification error occured. (Neither SSLerr() codes nor alerts
6139 are directly visible to potential attackers, but the information
6140 may leak via logfiles.)
6142 Similar changes are not required for the SSL 2.0 implementation
6143 because the number of padding bytes is sent in clear for SSL 2.0,
6144 and the extra bytes are just ignored. However ssl/s2_pkt.c
6145 failed to verify that the purported number of padding bytes is in
6149 *) Add OpenUNIX-8 support including shared libraries
6150 (Boyd Lynn Gerber <gerberb@zenez.com>).
6153 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6154 'wristwatch attack' using huge encoding parameters (cf.
6155 James H. Manger's CRYPTO 2001 paper). Note that the
6156 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6157 encoding parameters and hence was not vulnerable.
6160 *) BN_sqr() bug fix.
6161 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6163 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6164 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6165 followed by modular reduction.
6166 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6168 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6169 equivalent based on BN_pseudo_rand() instead of BN_rand().
6172 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6173 This function was broken, as the check for a new client hello message
6174 to handle SGC did not allow these large messages.
6175 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6178 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6181 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6182 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6185 *) Rework the configuration and shared library support for Tru64 Unix.
6186 The configuration part makes use of modern compiler features and
6187 still retains old compiler behavior for those that run older versions
6188 of the OS. The shared library support part includes a variant that
6189 uses the RPATH feature, and is available through the special
6190 configuration target "alpha-cc-rpath", which will never be selected
6192 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6194 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6195 with the same message size as in ssl3_get_certificate_request().
6196 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6197 messages might inadvertently be reject as too long.
6198 [Petr Lampa <lampa@fee.vutbr.cz>]
6200 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6203 *) Modified SSL library such that the verify_callback that has been set
6204 specificly for an SSL object with SSL_set_verify() is actually being
6205 used. Before the change, a verify_callback set with this function was
6206 ignored and the verify_callback() set in the SSL_CTX at the time of
6207 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6208 to allow the necessary settings.
6211 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6212 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6213 done automatically (in contradiction to the requirements of the C
6214 standard). This made problems when used from OpenSSH.
6217 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6218 dh->length and always used
6220 BN_rand_range(priv_key, dh->p).
6222 BN_rand_range() is not necessary for Diffie-Hellman, and this
6223 specific range makes Diffie-Hellman unnecessarily inefficient if
6224 dh->length (recommended exponent length) is much smaller than the
6225 length of dh->p. We could use BN_rand_range() if the order of
6226 the subgroup was stored in the DH structure, but we only have
6231 BN_rand(priv_key, l, ...)
6233 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6239 RSA_eay_public_encrypt
6240 RSA_eay_private_decrypt
6241 RSA_eay_private_encrypt (signing)
6242 RSA_eay_public_decrypt (signature verification)
6244 (default implementations for RSA_public_encrypt,
6245 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6246 always reject numbers >= n.
6249 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6250 to synchronize access to 'locking_thread'. This is necessary on
6251 systems where access to 'locking_thread' (an 'unsigned long'
6252 variable) is not atomic.
6255 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6256 *before* setting the 'crypto_lock_rand' flag. The previous code had
6257 a race condition if 0 is a valid thread ID.
6258 [Travis Vitek <vitek@roguewave.com>]
6260 *) Add support for shared libraries under Irix.
6261 [Albert Chin-A-Young <china@thewrittenword.com>]
6263 *) Add configuration option to build on Linux on both big-endian and
6265 [Ralf Baechle <ralf@uni-koblenz.de>]
6267 *) Add the possibility to create shared libraries on HP-UX.
6270 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6272 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6273 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6274 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6275 PRNG state recovery was possible based on the output of
6276 one PRNG request appropriately sized to gain knowledge on
6277 'md' followed by enough consecutive 1-byte PRNG requests
6278 to traverse all of 'state'.
6280 1. When updating 'md_local' (the current thread's copy of 'md')
6281 during PRNG output generation, hash all of the previous
6282 'md_local' value, not just the half used for PRNG output.
6284 2. Make the number of bytes from 'state' included into the hash
6285 independent from the number of PRNG bytes requested.
6287 The first measure alone would be sufficient to avoid
6288 Markku-Juhani's attack. (Actually it had never occurred
6289 to me that the half of 'md_local' used for chaining was the
6290 half from which PRNG output bytes were taken -- I had always
6291 assumed that the secret half would be used.) The second
6292 measure makes sure that additional data from 'state' is never
6293 mixed into 'md_local' in small portions; this heuristically
6294 further strengthens the PRNG.
6297 *) Fix crypto/bn/asm/mips3.s.
6300 *) When only the key is given to "enc", the IV is undefined. Print out
6301 an error message in this case.
6304 *) Handle special case when X509_NAME is empty in X509 printing routines.
6307 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6308 positive and less than q.
6311 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6312 used: it isn't thread safe and the add_lock_callback should handle
6314 [Paul Rose <Paul.Rose@bridge.com>]
6316 *) Verify that incoming data obeys the block size in
6317 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6321 [Ulf Möller, Bodo Möller]
6323 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6324 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6325 when fixing the server behaviour for backwards-compatible 'client
6326 hello' messages. (Note that the attack is impractical against
6327 SSL 3.0 and TLS 1.0 anyway because length and version checking
6328 means that the probability of guessing a valid ciphertext is
6329 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6332 Before 0.9.5, the countermeasure (hide the error by generating a
6333 random 'decryption result') did not work properly because
6334 ERR_clear_error() was missing, meaning that SSL_get_error() would
6335 detect the supposedly ignored error.
6337 Both problems are now fixed.
6340 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6341 (previously it was 1024).
6344 *) Fix for compatibility mode trust settings: ignore trust settings
6345 unless some valid trust or reject settings are present.
6348 *) Fix for blowfish EVP: its a variable length cipher.
6351 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6352 parameters in DSA public key structures and return an error in the
6353 DSA routines if parameters are absent.
6356 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6357 in the current directory if neither $RANDFILE nor $HOME was set.
6358 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6359 caused some confusion to Windows users who haven't defined $HOME.
6360 Thus RAND_file_name() is changed again: e_os.h can define a
6361 DEFAULT_HOME, which will be used if $HOME is not set.
6362 For Windows, we use "C:"; on other platforms, we still require
6363 environment variables.
6365 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6366 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6367 having multiple threads call RAND_poll() concurrently.
6370 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6371 combination of a flag and a thread ID variable.
6372 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6373 flag), *other* threads can enter ssleay_add_bytes without obeying
6374 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6375 that they do not hold after the first thread unsets add_do_not_lock).
6378 *) Change bctest again: '-x' expressions are not available in all
6382 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6384 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6385 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6387 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6388 the default extension for executables, if any. Also, make the perl
6389 scripts that use symlink() to test if it really exists and use "cp"
6390 if it doesn't. All this made OpenSSL compilable and installable in
6394 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6395 If SEQUENCE is length is indefinite just set c->slen to the total
6396 amount of data available.
6397 [Steve Henson, reported by shige@FreeBSD.org]
6398 [This change does not apply to 0.9.7.]
6400 *) Change bctest to avoid here-documents inside command substitution
6401 (workaround for FreeBSD /bin/sh bug).
6402 For compatibility with Ultrix, avoid shell functions (introduced
6403 in the bctest version that searches along $PATH).
6406 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6407 with des_encrypt() defined on some operating systems, like Solaris
6411 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6412 On the Importance of Eliminating Errors in Cryptographic
6413 Computations, J. Cryptology 14 (2001) 2, 101-119,
6414 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6417 *) MIPS assembler BIGNUM division bug fix.
6420 *) Disabled incorrect Alpha assembler code.
6423 *) Fix PKCS#7 decode routines so they correctly update the length
6424 after reading an EOC for the EXPLICIT tag.
6426 [This change does not apply to 0.9.7.]
6428 *) Fix bug in PKCS#12 key generation routines. This was triggered
6429 if a 3DES key was generated with a 0 initial byte. Include
6430 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6431 (but broken) behaviour.
6434 *) Enhance bctest to search for a working bc along $PATH and print
6436 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6438 *) Fix memory leaks in err.c: free err_data string if necessary;
6439 don't write to the wrong index in ERR_set_error_data.
6442 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6446 *) Replace rdtsc with _emit statements for VC++ version 5.
6447 [Jeremy Cooper <jeremy@baymoo.org>]
6449 *) Make it possible to reuse SSLv2 sessions.
6452 *) In copy_email() check for >= 0 as a return value for
6453 X509_NAME_get_index_by_NID() since 0 is a valid index.
6454 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6456 *) Avoid coredump with unsupported or invalid public keys by checking if
6457 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6458 PKCS7_verify() fails with non detached data.
6461 *) Don't use getenv in library functions when run as setuid/setgid.
6462 New function OPENSSL_issetugid().
6465 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6466 due to incorrect handling of multi-threading:
6468 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6470 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6472 3. Count how many times MemCheck_off() has been called so that
6473 nested use can be treated correctly. This also avoids
6474 inband-signalling in the previous code (which relied on the
6475 assumption that thread ID 0 is impossible).
6478 *) Add "-rand" option also to s_client and s_server.
6481 *) Fix CPU detection on Irix 6.x.
6482 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6483 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6485 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6488 [This change does not apply to 0.9.7.]
6490 *) Use the cached encoding of an X509_NAME structure rather than
6491 copying it. This is apparently the reason for the libsafe "errors"
6492 but the code is actually correct.
6495 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6496 Bleichenbacher's DSA attack.
6497 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6498 to be set and top=0 forces the highest bit to be set; top=-1 is new
6499 and leaves the highest bit random.
6500 [Ulf Moeller, Bodo Moeller]
6502 *) In the NCONF_...-based implementations for CONF_... queries
6503 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6504 a temporary CONF structure with the data component set to NULL
6505 (which gives segmentation faults in lh_retrieve).
6506 Instead, use NULL for the CONF pointer in CONF_get_string and
6507 CONF_get_number (which may use environment variables) and directly
6508 return NULL from CONF_get_section.
6511 *) Fix potential buffer overrun for EBCDIC.
6514 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6515 keyUsage if basicConstraints absent for a CA.
6518 *) Make SMIME_write_PKCS7() write mail header values with a format that
6519 is more generally accepted (no spaces before the semicolon), since
6520 some programs can't parse those values properly otherwise. Also make
6521 sure BIO's that break lines after each write do not create invalid
6525 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6526 macros previously used would not encode an empty SEQUENCE OF
6527 and break the signature.
6529 [This change does not apply to 0.9.7.]
6531 *) Zero the premaster secret after deriving the master secret in
6535 *) Add some EVP_add_digest_alias registrations (as found in
6536 OpenSSL_add_all_digests()) to SSL_library_init()
6537 aka OpenSSL_add_ssl_algorithms(). This provides improved
6538 compatibility with peers using X.509 certificates
6539 with unconventional AlgorithmIdentifier OIDs.
6542 *) Fix for Irix with NO_ASM.
6543 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6545 *) ./config script fixes.
6546 [Ulf Moeller, Richard Levitte]
6548 *) Fix 'openssl passwd -1'.
6551 *) Change PKCS12_key_gen_asc() so it can cope with non null
6552 terminated strings whose length is passed in the passlen
6553 parameter, for example from PEM callbacks. This was done
6554 by adding an extra length parameter to asc2uni().
6555 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6557 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6558 call failed, free the DSA structure.
6561 *) Fix to uni2asc() to cope with zero length Unicode strings.
6562 These are present in some PKCS#12 files.
6565 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6566 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6567 when writing a 32767 byte record.
6568 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6570 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6571 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6573 (RSA objects have a reference count access to which is protected
6574 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6575 so they are meant to be shared between threads.)
6576 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6577 "Reddie, Steven" <Steven.Reddie@ca.com>]
6579 *) Fix a deadlock in CRYPTO_mem_leaks().
6582 *) Use better test patterns in bntest.
6585 *) rand_win.c fix for Borland C.
6588 *) BN_rshift bugfix for n == 0.
6591 *) Add a 'bctest' script that checks for some known 'bc' bugs
6592 so that 'make test' does not abort just because 'bc' is broken.
6595 *) Store verify_result within SSL_SESSION also for client side to
6596 avoid potential security hole. (Re-used sessions on the client side
6597 always resulted in verify_result==X509_V_OK, not using the original
6598 result of the server certificate verification.)
6601 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6602 SSL3_RT_APPLICATION_DATA, return 0.
6603 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6607 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6608 releases, have been re-implemented by renaming the previous
6609 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6610 and ssl3_read_internal, respectively, and adding 'peek' parameters
6611 to them. The new ssl[23]_{read,peek} functions are calls to
6612 ssl[23]_read_internal with the 'peek' flag set appropriately.
6613 A 'peek' parameter has also been added to ssl3_read_bytes, which
6614 does the actual work for ssl3_read_internal.
6617 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6618 the method-specific "init()" handler. Also clean up ex_data after
6619 calling the method-specific "finish()" handler. Previously, this was
6620 happening the other way round.
6623 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6624 The previous value, 12, was not always sufficient for BN_mod_exp().
6627 *) Make sure that shared libraries get the internal name engine with
6628 the full version number and not just 0. This should mark the
6629 shared libraries as not backward compatible. Of course, this should
6630 be changed again when we can guarantee backward binary compatibility.
6633 *) Fix typo in get_cert_by_subject() in by_dir.c
6634 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6636 *) Rework the system to generate shared libraries:
6638 - Make note of the expected extension for the shared libraries and
6639 if there is a need for symbolic links from for example libcrypto.so.0
6640 to libcrypto.so.0.9.7. There is extended info in Configure for
6643 - Make as few rebuilds of the shared libraries as possible.
6645 - Still avoid linking the OpenSSL programs with the shared libraries.
6647 - When installing, install the shared libraries separately from the
6651 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6653 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6654 and not in SSL_clear because the latter is also used by the
6655 accept/connect functions; previously, the settings made by
6656 SSL_set_read_ahead would be lost during the handshake.
6657 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6659 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6660 Previously, it would create entries for disableed algorithms no
6664 *) Added several new manual pages for SSL_* function.
6667 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6669 *) In ssl23_get_client_hello, generate an error message when faced
6670 with an initial SSL 3.0/TLS record that is too small to contain the
6671 first two bytes of the ClientHello message, i.e. client_version.
6672 (Note that this is a pathologic case that probably has never happened
6673 in real life.) The previous approach was to use the version number
6674 from the record header as a substitute; but our protocol choice
6675 should not depend on that one because it is not authenticated
6676 by the Finished messages.
6679 *) More robust randomness gathering functions for Windows.
6680 [Jeffrey Altman <jaltman@columbia.edu>]
6682 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6683 not set then we don't setup the error code for issuer check errors
6684 to avoid possibly overwriting other errors which the callback does
6685 handle. If an application does set the flag then we assume it knows
6686 what it is doing and can handle the new informational codes
6690 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6691 a general "ANY" type, as such it should be able to decode anything
6692 including tagged types. However it didn't check the class so it would
6693 wrongly interpret tagged types in the same way as their universal
6694 counterpart and unknown types were just rejected. Changed so that the
6695 tagged and unknown types are handled in the same way as a SEQUENCE:
6696 that is the encoding is stored intact. There is also a new type
6697 "V_ASN1_OTHER" which is used when the class is not universal, in this
6698 case we have no idea what the actual type is so we just lump them all
6702 *) On VMS, stdout may very well lead to a file that is written to
6703 in a record-oriented fashion. That means that every write() will
6704 write a separate record, which will be read separately by the
6705 programs trying to read from it. This can be very confusing.
6707 The solution is to put a BIO filter in the way that will buffer
6708 text until a linefeed is reached, and then write everything a
6709 line at a time, so every record written will be an actual line,
6710 not chunks of lines and not (usually doesn't happen, but I've
6711 seen it once) several lines in one record. BIO_f_linebuffer() is
6714 Currently, it's a VMS-only method, because that's where it has
6715 been tested well enough.
6718 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6719 it can return incorrect results.
6720 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6721 but it was in 0.9.6-beta[12].)
6724 *) Disable the check for content being present when verifying detached
6725 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6726 include zero length content when signing messages.
6729 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6730 BIO_ctrl (for BIO pairs).
6733 *) Add DSO method for VMS.
6736 *) Bug fix: Montgomery multiplication could produce results with the
6740 *) Add RPM specification openssl.spec and modify it to build three
6741 packages. The default package contains applications, application
6742 documentation and run-time libraries. The devel package contains
6743 include files, static libraries and function documentation. The
6744 doc package contains the contents of the doc directory. The original
6745 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6748 *) Add a large number of documentation files for many SSL routines.
6749 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6751 *) Add a configuration entry for Sony News 4.
6752 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6754 *) Don't set the two most significant bits to one when generating a
6755 random number < q in the DSA library.
6758 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6759 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6760 the underlying transport is blocking) if a handshake took place.
6761 (The default behaviour is needed by applications such as s_client
6762 and s_server that use select() to determine when to use SSL_read;
6763 but for applications that know in advance when to expect data, it
6764 just makes things more complicated.)
6767 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6771 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6772 work better on such systems.
6773 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6775 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6776 Update PKCS12_parse() so it copies the friendlyName and the
6777 keyid to the certificates aux info.
6780 *) Fix bug in PKCS7_verify() which caused an infinite loop
6781 if there was more than one signature.
6782 [Sven Uszpelkat <su@celocom.de>]
6784 *) Major change in util/mkdef.pl to include extra information
6785 about each symbol, as well as presentig variables as well
6786 as functions. This change means that there's n more need
6787 to rebuild the .num files when some algorithms are excluded.
6790 *) Allow the verify time to be set by an application,
6791 rather than always using the current time.
6794 *) Phase 2 verify code reorganisation. The certificate
6795 verify code now looks up an issuer certificate by a
6796 number of criteria: subject name, authority key id
6797 and key usage. It also verifies self signed certificates
6798 by the same criteria. The main comparison function is
6799 X509_check_issued() which performs these checks.
6801 Lot of changes were necessary in order to support this
6802 without completely rewriting the lookup code.
6804 Authority and subject key identifier are now cached.
6806 The LHASH 'certs' is X509_STORE has now been replaced
6807 by a STACK_OF(X509_OBJECT). This is mainly because an
6808 LHASH can't store or retrieve multiple objects with
6809 the same hash value.
6811 As a result various functions (which were all internal
6812 use only) have changed to handle the new X509_STORE
6813 structure. This will break anything that messed round
6814 with X509_STORE internally.
6816 The functions X509_STORE_add_cert() now checks for an
6817 exact match, rather than just subject name.
6819 The X509_STORE API doesn't directly support the retrieval
6820 of multiple certificates matching a given criteria, however
6821 this can be worked round by performing a lookup first
6822 (which will fill the cache with candidate certificates)
6823 and then examining the cache for matches. This is probably
6824 the best we can do without throwing out X509_LOOKUP
6825 entirely (maybe later...).
6827 The X509_VERIFY_CTX structure has been enhanced considerably.
6829 All certificate lookup operations now go via a get_issuer()
6830 callback. Although this currently uses an X509_STORE it
6831 can be replaced by custom lookups. This is a simple way
6832 to bypass the X509_STORE hackery necessary to make this
6833 work and makes it possible to use more efficient techniques
6834 in future. A very simple version which uses a simple
6835 STACK for its trusted certificate store is also provided
6836 using X509_STORE_CTX_trusted_stack().
6838 The verify_cb() and verify() callbacks now have equivalents
6839 in the X509_STORE_CTX structure.
6841 X509_STORE_CTX also has a 'flags' field which can be used
6842 to customise the verify behaviour.
6845 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6846 excludes S/MIME capabilities.
6849 *) When a certificate request is read in keep a copy of the
6850 original encoding of the signed data and use it when outputing
6851 again. Signatures then use the original encoding rather than
6852 a decoded, encoded version which may cause problems if the
6853 request is improperly encoded.
6856 *) For consistency with other BIO_puts implementations, call
6857 buffer_write(b, ...) directly in buffer_puts instead of calling
6860 In BIO_puts, increment b->num_write as in BIO_write.
6861 [Peter.Sylvester@EdelWeb.fr]
6863 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6864 BN_zero, we may not return a BIGNUM with an array consisting of
6868 *) Avoid calling abort() from within the library when problems are
6869 detected, except if preprocessor symbols have been defined
6870 (such as REF_CHECK, BN_DEBUG etc.).
6873 *) New openssl application 'rsautl'. This utility can be
6874 used for low level RSA operations. DER public key
6875 BIO/fp routines also added.
6878 *) New Configure entry and patches for compiling on QNX 4.
6879 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6881 *) A demo state-machine implementation was sponsored by
6882 Nuron (http://www.nuron.com/) and is now available in
6883 demos/state_machine.
6886 *) New options added to the 'dgst' utility for signature
6887 generation and verification.
6890 *) Unrecognized PKCS#7 content types are now handled via a
6891 catch all ASN1_TYPE structure. This allows unsupported
6892 types to be stored as a "blob" and an application can
6893 encode and decode it manually.
6896 *) Fix various signed/unsigned issues to make a_strex.c
6898 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6900 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6901 length if passed a buffer. ASN1_INTEGER_to_BN failed
6902 if passed a NULL BN and its argument was negative.
6903 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6905 *) Modification to PKCS#7 encoding routines to output definite
6906 length encoding. Since currently the whole structures are in
6907 memory there's not real point in using indefinite length
6908 constructed encoding. However if OpenSSL is compiled with
6909 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6912 *) Added BIO_vprintf() and BIO_vsnprintf().
6915 *) Added more prefixes to parse for in the the strings written
6916 through a logging bio, to cover all the levels that are available
6917 through syslog. The prefixes are now:
6919 PANIC, EMERG, EMR => LOG_EMERG
6920 ALERT, ALR => LOG_ALERT
6921 CRIT, CRI => LOG_CRIT
6922 ERROR, ERR => LOG_ERR
6923 WARNING, WARN, WAR => LOG_WARNING
6924 NOTICE, NOTE, NOT => LOG_NOTICE
6925 INFO, INF => LOG_INFO
6926 DEBUG, DBG => LOG_DEBUG
6928 and as before, if none of those prefixes are present at the
6929 beginning of the string, LOG_ERR is chosen.
6931 On Win32, the LOG_* levels are mapped according to this:
6933 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6934 LOG_WARNING => EVENTLOG_WARNING_TYPE
6935 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6939 *) Made it possible to reconfigure with just the configuration
6940 argument "reconf" or "reconfigure". The command line arguments
6941 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6942 and are retrieved from there when reconfiguring.
6946 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6948 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6951 *) The obj_dat.pl script was messing up the sorting of object
6952 names. The reason was that it compared the quoted version
6953 of strings as a result "OCSP" > "OCSP Signing" because
6954 " > SPACE. Changed script to store unquoted versions of
6955 names and add quotes on output. It was also omitting some
6956 names from the lookup table if they were given a default
6957 value (that is if SN is missing it is given the same
6958 value as LN and vice versa), these are now added on the
6959 grounds that if an object has a name we should be able to
6960 look it up. Finally added warning output when duplicate
6961 short or long names are found.
6964 *) Changes needed for Tandem NSK.
6965 [Scott Uroff <scott@xypro.com>]
6967 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6968 RSA_padding_check_SSLv23(), special padding was never detected
6969 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6970 version rollback attacks was not effective.
6972 In s23_clnt.c, don't use special rollback-attack detection padding
6973 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6974 client; similarly, in s23_srvr.c, don't do the rollback check if
6975 SSL 2.0 is the only protocol enabled in the server.
6978 *) Make it possible to get hexdumps of unprintable data with 'openssl
6979 asn1parse'. By implication, the functions ASN1_parse_dump() and
6980 BIO_dump_indent() are added.
6983 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6984 these print out strings and name structures based on various
6985 flags including RFC2253 support and proper handling of
6986 multibyte characters. Added options to the 'x509' utility
6987 to allow the various flags to be set.
6990 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6991 Also change the functions X509_cmp_current_time() and
6992 X509_gmtime_adj() work with an ASN1_TIME structure,
6993 this will enable certificates using GeneralizedTime in validity
6994 dates to be checked.
6997 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6998 negative public key encodings) on by default,
6999 NO_NEG_PUBKEY_BUG can be set to disable it.
7002 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7003 content octets. An i2c_ASN1_OBJECT is unnecessary because
7004 the encoding can be trivially obtained from the structure.
7007 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7008 not read locks (CRYPTO_r_[un]lock).
7011 *) A first attempt at creating official support for shared
7012 libraries through configuration. I've kept it so the
7013 default is static libraries only, and the OpenSSL programs
7014 are always statically linked for now, but there are
7015 preparations for dynamic linking in place.
7016 This has been tested on Linux and Tru64.
7019 *) Randomness polling function for Win9x, as described in:
7020 Peter Gutmann, Software Generation of Practically Strong
7024 *) Fix so PRNG is seeded in req if using an already existing
7028 *) New options to smime application. -inform and -outform
7029 allow alternative formats for the S/MIME message including
7030 PEM and DER. The -content option allows the content to be
7031 specified separately. This should allow things like Netscape
7032 form signing output easier to verify.
7035 *) Fix the ASN1 encoding of tags using the 'long form'.
7038 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7039 STRING types. These convert content octets to and from the
7040 underlying type. The actual tag and length octets are
7041 already assumed to have been read in and checked. These
7042 are needed because all other string types have virtually
7043 identical handling apart from the tag. By having versions
7044 of the ASN1 functions that just operate on content octets
7045 IMPLICIT tagging can be handled properly. It also allows
7046 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7047 and ASN1_INTEGER are identical apart from the tag.
7050 *) Change the handling of OID objects as follows:
7052 - New object identifiers are inserted in objects.txt, following
7053 the syntax given in objects.README.
7054 - objects.pl is used to process obj_mac.num and create a new
7056 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7059 This is currently kind of a hack, and the perl code in objects.pl
7060 isn't very elegant, but it works as I intended. The simplest way
7061 to check that it worked correctly is to look in obj_dat.h and
7062 check the array nid_objs and make sure the objects haven't moved
7063 around (this is important!). Additions are OK, as well as
7064 consistent name changes.
7067 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7070 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7071 The given file adds to whatever has already been seeded into the
7072 random pool through the RANDFILE configuration file option or
7073 environment variable, or the default random state file.
7076 *) mkstack.pl now sorts each macro group into lexical order.
7077 Previously the output order depended on the order the files
7078 appeared in the directory, resulting in needless rewriting
7082 *) Patches to make OpenSSL compile under Win32 again. Mostly
7083 work arounds for the VC++ problem that it treats func() as
7084 func(void). Also stripped out the parts of mkdef.pl that
7085 added extra typesafe functions: these no longer exist.
7088 *) Reorganisation of the stack code. The macros are now all
7089 collected in safestack.h . Each macro is defined in terms of
7090 a "stack macro" of the form SKM_<name>(type, a, b). The
7091 DEBUG_SAFESTACK is now handled in terms of function casts,
7092 this has the advantage of retaining type safety without the
7093 use of additional functions. If DEBUG_SAFESTACK is not defined
7094 then the non typesafe macros are used instead. Also modified the
7095 mkstack.pl script to handle the new form. Needs testing to see
7096 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7097 the default if no major problems. Similar behaviour for ASN1_SET_OF
7098 and PKCS12_STACK_OF.
7101 *) When some versions of IIS use the 'NET' form of private key the
7102 key derivation algorithm is different. Normally MD5(password) is
7103 used as a 128 bit RC4 key. In the modified case
7104 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7105 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7106 as the old Netscape_RSA functions except they have an additional
7107 'sgckey' parameter which uses the modified algorithm. Also added
7108 an -sgckey command line option to the rsa utility. Thanks to
7109 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7110 algorithm to openssl-dev.
7113 *) The evp_local.h macros were using 'c.##kname' which resulted in
7114 invalid expansion on some systems (SCO 5.0.5 for example).
7115 Corrected to 'c.kname'.
7116 [Phillip Porch <root@theporch.com>]
7118 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7119 a STACK of email addresses from a certificate or request, these look
7120 in the subject name and the subject alternative name extensions and
7121 omit any duplicate addresses.
7124 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7125 This makes DSA verification about 2 % faster.
7128 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7129 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7130 plus overhead for 1024 bit moduli).
7131 This makes exponentiations about 0.5 % faster for 1024 bit
7132 exponents (as measured by "openssl speed rsa2048").
7135 *) Rename memory handling macros to avoid conflicts with other
7137 Malloc => OPENSSL_malloc
7138 Malloc_locked => OPENSSL_malloc_locked
7139 Realloc => OPENSSL_realloc
7140 Free => OPENSSL_free
7143 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7144 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7147 *) CygWin32 support.
7148 [John Jarvie <jjarvie@newsguy.com>]
7150 *) The type-safe stack code has been rejigged. It is now only compiled
7151 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7152 by default all type-specific stack functions are "#define"d back to
7153 standard stack functions. This results in more streamlined output
7154 but retains the type-safety checking possibilities of the original
7158 *) The STACK code has been cleaned up, and certain type declarations
7159 that didn't make a lot of sense have been brought in line. This has
7160 also involved a cleanup of sorts in safestack.h to more correctly
7161 map type-safe stack functions onto their plain stack counterparts.
7162 This work has also resulted in a variety of "const"ifications of
7163 lots of the code, especially "_cmp" operations which should normally
7164 be prototyped with "const" parameters anyway.
7167 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7168 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7169 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7170 where all of 'md' is used each time the PRNG is used, but 'state'
7171 is used only indexed by a cyclic counter. As entropy may not be
7172 well distributed from the beginning, 'md' is important as a
7173 chaining variable. However, the output function chains only half
7174 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7175 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7176 in all of 'state' being rewritten, with the new values depending
7177 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7180 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7181 the handshake is continued after ssl_verify_cert_chain();
7182 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7183 can lead to 'unexplainable' connection aborts later.
7184 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7186 *) Major EVP API cipher revision.
7187 Add hooks for extra EVP features. This allows various cipher
7188 parameters to be set in the EVP interface. Support added for variable
7189 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7190 setting of RC2 and RC5 parameters.
7192 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7195 Remove lots of duplicated code from the EVP library. For example *every*
7196 cipher init() function handles the 'iv' in the same way according to the
7197 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7198 for CFB and OFB modes they zero ctx->num.
7200 New functionality allows removal of S/MIME code RC2 hack.
7202 Most of the routines have the same form and so can be declared in terms
7205 By shifting this to the top level EVP_CipherInit() it can be removed from
7206 all individual ciphers. If the cipher wants to handle IVs or keys
7207 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7210 Change lots of functions like EVP_EncryptUpdate() to now return a
7211 value: although software versions of the algorithms cannot fail
7212 any installed hardware versions can.
7215 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7216 this option is set, tolerate broken clients that send the negotiated
7217 protocol version number instead of the requested protocol version
7221 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7222 i.e. non-zero for export ciphersuites, zero otherwise.
7223 Previous versions had this flag inverted, inconsistent with
7224 rsa_tmp_cb (..._TMP_RSA_CB).
7225 [Bodo Moeller; problem reported by Amit Chopra]
7227 *) Add missing DSA library text string. Work around for some IIS
7228 key files with invalid SEQUENCE encoding.
7231 *) Add a document (doc/standards.txt) that list all kinds of standards
7232 and so on that are implemented in OpenSSL.
7235 *) Enhance c_rehash script. Old version would mishandle certificates
7236 with the same subject name hash and wouldn't handle CRLs at all.
7237 Added -fingerprint option to crl utility, to support new c_rehash
7241 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7244 *) Fix for SSL server purpose checking. Server checking was
7245 rejecting certificates which had extended key usage present
7246 but no ssl client purpose.
7247 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7249 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7250 is a little unclear about how a blank password is handled.
7251 Since the password in encoded as a BMPString with terminating
7252 double NULL a zero length password would end up as just the
7253 double NULL. However no password at all is different and is
7254 handled differently in the PKCS#12 key generation code. NS
7255 treats a blank password as zero length. MSIE treats it as no
7256 password on export: but it will try both on import. We now do
7257 the same: PKCS12_parse() tries zero length and no password if
7258 the password is set to "" or NULL (NULL is now a valid password:
7259 it wasn't before) as does the pkcs12 application.
7262 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7263 perror when PEM_read_bio_X509_REQ fails, the error message must
7264 be obtained from the error queue.
7267 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7268 it in ERR_remove_state if appropriate, and change ERR_get_state
7269 accordingly to avoid race conditions (this is necessary because
7270 thread_hash is no longer constant once set).
7273 *) Bugfix for linux-elf makefile.one.
7276 *) RSA_get_default_method() will now cause a default
7277 RSA_METHOD to be chosen if one doesn't exist already.
7278 Previously this was only set during a call to RSA_new()
7279 or RSA_new_method(NULL) meaning it was possible for
7280 RSA_get_default_method() to return NULL.
7283 *) Added native name translation to the existing DSO code
7284 that will convert (if the flag to do so is set) filenames
7285 that are sufficiently small and have no path information
7286 into a canonical native form. Eg. "blah" converted to
7287 "libblah.so" or "blah.dll" etc.
7290 *) New function ERR_error_string_n(e, buf, len) which is like
7291 ERR_error_string(e, buf), but writes at most 'len' bytes
7292 including the 0 terminator. For ERR_error_string_n, 'buf'
7294 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7296 *) CONF library reworked to become more general. A new CONF
7297 configuration file reader "class" is implemented as well as a
7298 new functions (NCONF_*, for "New CONF") to handle it. The now
7299 old CONF_* functions are still there, but are reimplemented to
7300 work in terms of the new functions. Also, a set of functions
7301 to handle the internal storage of the configuration data is
7302 provided to make it easier to write new configuration file
7303 reader "classes" (I can definitely see something reading a
7304 configuration file in XML format, for example), called _CONF_*,
7305 or "the configuration storage API"...
7307 The new configuration file reading functions are:
7309 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7310 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7312 NCONF_default, NCONF_WIN32
7314 NCONF_dump_fp, NCONF_dump_bio
7316 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7317 NCONF_new creates a new CONF object. This works in the same way
7318 as other interfaces in OpenSSL, like the BIO interface.
7319 NCONF_dump_* dump the internal storage of the configuration file,
7320 which is useful for debugging. All other functions take the same
7321 arguments as the old CONF_* functions wth the exception of the
7322 first that must be a `CONF *' instead of a `LHASH *'.
7324 To make it easer to use the new classes with the old CONF_* functions,
7325 the function CONF_set_default_method is provided.
7328 *) Add '-tls1' option to 'openssl ciphers', which was already
7329 mentioned in the documentation but had not been implemented.
7330 (This option is not yet really useful because even the additional
7331 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7334 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7335 OpenSSL-based applications) load shared libraries and bind to
7336 them in a portable way.
7337 [Geoff Thorpe, with contributions from Richard Levitte]
7339 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7341 *) Make sure _lrotl and _lrotr are only used with MSVC.
7343 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7344 (the default implementation of RAND_status).
7346 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7347 to '-clrext' (= clear extensions), as intended and documented.
7348 [Bodo Moeller; inconsistency pointed out by Michael Attili
7351 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7352 was larger than the MD block size.
7353 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7355 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7356 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7357 using the passed key: if the passed key was a private key the result
7358 of X509_print(), for example, would be to print out all the private key
7362 *) des_quad_cksum() byte order bug fix.
7363 [Ulf Möller, using the problem description in krb4-0.9.7, where
7364 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7366 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7368 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7370 *) For easily testing in shell scripts whether some command
7371 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7372 returns with exit code 0 iff no command of the given name is available.
7373 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7374 the output goes to stdout and nothing is printed to stderr.
7375 Additional arguments are always ignored.
7377 Since for each cipher there is a command of the same name,
7378 the 'no-cipher' compilation switches can be tested this way.
7380 ('openssl no-XXX' is not able to detect pseudo-commands such
7381 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7384 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7387 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7388 is set; it will be thrown away anyway because each handshake creates
7390 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7391 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7392 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7393 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7396 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7397 'Q' and 'R' lose their special meanings (quit/renegotiate).
7398 This is part of what -quiet does; unlike -quiet, -ign_eof
7399 does not suppress any output.
7402 *) Add compatibility options to the purpose and trust code. The
7403 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7404 accepts a certificate or CA, this was the previous behaviour,
7405 with all the associated security issues.
7407 X509_TRUST_COMPAT is the old trust behaviour: only and
7408 automatically trust self signed roots in certificate store. A
7409 new trust setting X509_TRUST_DEFAULT is used to specify that
7410 a purpose has no associated trust setting and it should instead
7411 use the value in the default purpose.
7414 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7415 and fix a memory leak.
7418 *) In util/mkerr.pl (which implements 'make errors'), preserve
7419 reason strings from the previous version of the .c file, as
7420 the default to have only downcase letters (and digits) in
7421 automatically generated reasons codes is not always appropriate.
7424 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7425 using strerror. Previously, ERR_reason_error_string() returned
7426 library names as reason strings for SYSerr; but SYSerr is a special
7427 case where small numbers are errno values, not library numbers.
7430 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7431 converts DSA parameters into DH parameters. (When creating parameters,
7432 DSA_generate_parameters is used.)
7435 *) Include 'length' (recommended exponent length) in C code generated
7436 by 'openssl dhparam -C'.
7439 *) The second argument to set_label in perlasm was already being used
7440 so couldn't be used as a "file scope" flag. Moved to third argument
7444 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7445 instead of RAND_bytes for encryption IVs and salts.
7448 *) Include RAND_status() into RAND_METHOD instead of implementing
7449 it only for md_rand.c Otherwise replacing the PRNG by calling
7450 RAND_set_rand_method would be impossible.
7453 *) Don't let DSA_generate_key() enter an infinite loop if the random
7454 number generation fails.
7457 *) New 'rand' application for creating pseudo-random output.
7460 *) Added configuration support for Linux/IA64
7461 [Rolf Haberrecker <rolf@suse.de>]
7463 *) Assembler module support for Mingw32.
7466 *) Shared library support for HPUX (in shlib/).
7467 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7469 *) Shared library support for Solaris gcc.
7470 [Lutz Behnke <behnke@trustcenter.de>]
7472 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7474 *) PKCS7_encrypt() was adding text MIME headers twice because they
7475 were added manually and by SMIME_crlf_copy().
7478 *) In bntest.c don't call BN_rand with zero bits argument.
7479 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7481 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7482 case was implemented. This caused BN_div_recp() to fail occasionally.
7485 *) Add an optional second argument to the set_label() in the perl
7486 assembly language builder. If this argument exists and is set
7487 to 1 it signals that the assembler should use a symbol whose
7488 scope is the entire file, not just the current function. This
7489 is needed with MASM which uses the format label:: for this scope.
7490 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7492 *) Change the ASN1 types so they are typedefs by default. Before
7493 almost all types were #define'd to ASN1_STRING which was causing
7494 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7498 *) Change names of new functions to the new get1/get0 naming
7499 convention: After 'get1', the caller owns a reference count
7500 and has to call ..._free; 'get0' returns a pointer to some
7501 data structure without incrementing reference counters.
7502 (Some of the existing 'get' functions increment a reference
7503 counter, some don't.)
7504 Similarly, 'set1' and 'add1' functions increase reference
7505 counters or duplicate objects.
7508 *) Allow for the possibility of temp RSA key generation failure:
7509 the code used to assume it always worked and crashed on failure.
7512 *) Fix potential buffer overrun problem in BIO_printf().
7513 [Ulf Möller, using public domain code by Patrick Powell; problem
7514 pointed out by David Sacerdote <das33@cornell.edu>]
7516 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7517 RAND_egd() and RAND_status(). In the command line application,
7518 the EGD socket can be specified like a seed file using RANDFILE
7522 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7523 Some CAs (e.g. Verisign) distribute certificates in this form.
7526 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7527 list to exclude them. This means that no special compilation option
7528 is needed to use anonymous DH: it just needs to be included in the
7532 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7533 EVP_MD_type. The old functionality is available in a new macro called
7534 EVP_MD_md(). Change code that uses it and update docs.
7537 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7538 where the 'void *' argument is replaced by a function pointer argument.
7539 Previously 'void *' was abused to point to functions, which works on
7540 many platforms, but is not correct. As these functions are usually
7541 called by macros defined in OpenSSL header files, most source code
7542 should work without changes.
7545 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7546 sections with information on -D... compiler switches used for
7547 compiling the library so that applications can see them. To enable
7548 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7549 must be defined. E.g.,
7550 #define OPENSSL_ALGORITHM_DEFINES
7551 #include <openssl/opensslconf.h>
7552 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7553 [Richard Levitte, Ulf and Bodo Möller]
7555 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7559 *) Change the 'other' type in certificate aux info to a STACK_OF
7560 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7561 the required ASN1 format: arbitrary types determined by an OID.
7564 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7565 argument to 'req'. This is not because the function is newer or
7566 better than others it just uses the work 'NEW' in the certificate
7567 request header lines. Some software needs this.
7570 *) Reorganise password command line arguments: now passwords can be
7571 obtained from various sources. Delete the PEM_cb function and make
7572 it the default behaviour: i.e. if the callback is NULL and the
7573 usrdata argument is not NULL interpret it as a null terminated pass
7574 phrase. If usrdata and the callback are NULL then the pass phrase
7575 is prompted for as usual.
7578 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7579 the support is automatically enabled. The resulting binaries will
7580 autodetect the card and use it if present.
7581 [Ben Laurie and Compaq Inc.]
7583 *) Work around for Netscape hang bug. This sends certificate request
7584 and server done in one record. Since this is perfectly legal in the
7585 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7586 the bugs/SSLv3 entry for more info.
7589 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7592 *) Add -rand argument to smime and pkcs12 applications and read/write
7596 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7599 *) Add command line password options to the remaining applications.
7602 *) Bug fix for BN_div_recp() for numerators with an even number of
7606 *) More tests in bntest.c, and changed test_bn output.
7609 *) ./config recognizes MacOS X now.
7612 *) Bug fix for BN_div() when the first words of num and divsor are
7613 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7616 *) Add support for various broken PKCS#8 formats, and command line
7617 options to produce them.
7620 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7621 get temporary BIGNUMs from a BN_CTX.
7624 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7628 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7629 include a #define from the old name to the new. The original intent
7630 was that statically linked binaries could for example just call
7631 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7632 link with digests. This never worked becayse SSLeay_add_all_digests()
7633 and SSLeay_add_all_ciphers() were in the same source file so calling
7634 one would link with the other. They are now in separate source files.
7637 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7640 *) Use a less unusual form of the Miller-Rabin primality test (it used
7641 a binary algorithm for exponentiation integrated into the Miller-Rabin
7642 loop, our standard modexp algorithms are faster).
7645 *) Support for the EBCDIC character set completed.
7646 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7648 *) Source code cleanups: use const where appropriate, eliminate casts,
7649 use void * instead of char * in lhash.
7652 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7653 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7654 this the server could overwrite ephemeral keys that the client
7658 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7659 using 50 iterations of the Rabin-Miller test.
7661 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7662 iterations of the Rabin-Miller test as required by the appendix
7663 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7664 As BN_is_prime_fasttest includes trial division, DSA parameter
7665 generation becomes much faster.
7667 This implies a change for the callback functions in DSA_is_prime
7668 and DSA_generate_parameters: The callback function is called once
7669 for each positive witness in the Rabin-Miller test, not just
7670 occasionally in the inner loop; and the parameters to the
7671 callback function now provide an iteration count for the outer
7672 loop rather than for the current invocation of the inner loop.
7673 DSA_generate_parameters additionally can call the callback
7674 function with an 'iteration count' of -1, meaning that a
7675 candidate has passed the trial division test (when q is generated
7676 from an application-provided seed, trial division is skipped).
7679 *) New function BN_is_prime_fasttest that optionally does trial
7680 division before starting the Rabin-Miller test and has
7681 an additional BN_CTX * argument (whereas BN_is_prime always
7682 has to allocate at least one BN_CTX).
7683 'callback(1, -1, cb_arg)' is called when a number has passed the
7684 trial division stage.
7687 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7691 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7694 *) New function BN_pseudo_rand().
7697 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7698 bignum version of BN_from_montgomery() with the working code from
7699 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7703 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7704 made it impossible to use the same SSL_SESSION data structure in
7705 SSL2 clients in multiple threads.
7708 *) The return value of RAND_load_file() no longer counts bytes obtained
7709 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7710 to seed the PRNG (previously an explicit byte count was required).
7711 [Ulf Möller, Bodo Möller]
7713 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7714 used (char *) instead of (void *) and had casts all over the place.
7717 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7720 *) Retain source code compatibility for BN_prime_checks macro:
7721 BN_is_prime(..., BN_prime_checks, ...) now uses
7722 BN_prime_checks_for_size to determine the appropriate number of
7723 Rabin-Miller iterations.
7726 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7727 DH_CHECK_P_NOT_SAFE_PRIME.
7728 (Check if this is true? OpenPGP calls them "strong".)
7731 *) Merge the functionality of "dh" and "gendh" programs into a new program
7732 "dhparam". The old programs are retained for now but will handle DH keys
7733 (instead of parameters) in future.
7736 *) Make the ciphers, s_server and s_client programs check the return values
7737 when a new cipher list is set.
7740 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7741 ciphers. Before when the 56bit ciphers were enabled the sorting was
7744 The syntax for the cipher sorting has been extended to support sorting by
7745 cipher-strength (using the strength_bits hard coded in the tables).
7746 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7748 Fix a bug in the cipher-command parser: when supplying a cipher command
7749 string with an "undefined" symbol (neither command nor alphanumeric
7750 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7751 an error is flagged.
7753 Due to the strength-sorting extension, the code of the
7754 ssl_create_cipher_list() function was completely rearranged. I hope that
7755 the readability was also increased :-)
7756 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7758 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7759 for the first serial number and places 2 in the serial number file. This
7760 avoids problems when the root CA is created with serial number zero and
7761 the first user certificate has the same issuer name and serial number
7765 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7766 the new code. Add documentation for this stuff.
7769 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7770 X509_*() to X509at_*() on the grounds that they don't handle X509
7771 structures and behave in an analagous way to the X509v3 functions:
7772 they shouldn't be called directly but wrapper functions should be used
7775 So we also now have some wrapper functions that call the X509at functions
7776 when passed certificate requests. (TO DO: similar things can be done with
7777 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7778 things. Some of these need some d2i or i2d and print functionality
7779 because they handle more complex structures.)
7782 *) Add missing #ifndefs that caused missing symbols when building libssl
7783 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7784 NO_RSA in ssl/s2*.c.
7785 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7787 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7788 has a return value which indicates the quality of the random data
7789 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7790 error queue. New function RAND_pseudo_bytes() generates output that is
7791 guaranteed to be unique but not unpredictable. RAND_add is like
7792 RAND_seed, but takes an extra argument for an entropy estimate
7793 (RAND_seed always assumes full entropy).
7796 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7797 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7798 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7799 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7800 false-positive rate of at most 2^-80 for random input.
7803 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7806 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7807 in the 0.9.5 release), this returns the chain
7808 from an X509_CTX structure with a dup of the stack and all
7809 the X509 reference counts upped: so the stack will exist
7810 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7813 Also make SSL_SESSION_print() print out the verify return
7817 *) Add manpage for the pkcs12 command. Also change the default
7818 behaviour so MAC iteration counts are used unless the new
7819 -nomaciter option is used. This improves file security and
7820 only older versions of MSIE (4.0 for example) need it.
7823 *) Honor the no-xxx Configure options when creating .DEF files.
7826 *) Add PKCS#10 attributes to field table: challengePassword,
7827 unstructuredName and unstructuredAddress. These are taken from
7828 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7829 international characters are used.
7831 More changes to X509_ATTRIBUTE code: allow the setting of types
7832 based on strings. Remove the 'loc' parameter when adding
7833 attributes because these will be a SET OF encoding which is sorted
7837 *) Initial changes to the 'req' utility to allow request generation
7838 automation. This will allow an application to just generate a template
7839 file containing all the field values and have req construct the
7842 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7843 used all over the place including certificate requests and PKCS#7
7844 structures. They are currently handled manually where necessary with
7845 some primitive wrappers for PKCS#7. The new functions behave in a
7846 manner analogous to the X509 extension functions: they allow
7847 attributes to be looked up by NID and added.
7849 Later something similar to the X509V3 code would be desirable to
7850 automatically handle the encoding, decoding and printing of the
7851 more complex types. The string types like challengePassword can
7852 be handled by the string table functions.
7854 Also modified the multi byte string table handling. Now there is
7855 a 'global mask' which masks out certain types. The table itself
7856 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7857 is useful when for example there is only one permissible type
7858 (as in countryName) and using the mask might result in no valid
7862 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7863 SSL_get_peer_finished to allow applications to obtain the latest
7864 Finished messages sent to the peer or expected from the peer,
7865 respectively. (SSL_get_peer_finished is usually the Finished message
7866 actually received from the peer, otherwise the protocol will be aborted.)
7868 As the Finished message are message digests of the complete handshake
7869 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7870 be used for external authentication procedures when the authentication
7871 provided by SSL/TLS is not desired or is not enough.
7874 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7875 the host supports BWX extension and if Compaq C is present on the
7876 $PATH. Just exploiting of the BWX extension results in 20-30%
7877 performance kick for some algorithms, e.g. DES and RC4 to mention
7878 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7882 *) Add support for MS "fast SGC". This is arguably a violation of the
7883 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7884 weak crypto and after checking the certificate is SGC a second one
7885 with strong crypto. MS SGC stops the first handshake after receiving
7886 the server certificate message and sends a second client hello. Since
7887 a server will typically do all the time consuming operations before
7888 expecting any further messages from the client (server key exchange
7889 is the most expensive) there is little difference between the two.
7891 To get OpenSSL to support MS SGC we have to permit a second client
7892 hello message after we have sent server done. In addition we have to
7893 reset the MAC if we do get this second client hello.
7896 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7897 if a DER encoded private key is RSA or DSA traditional format. Changed
7898 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7899 format DER encoded private key. Newer code should use PKCS#8 format which
7900 has the key type encoded in the ASN1 structure. Added DER private key
7901 support to pkcs8 application.
7904 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7905 ciphersuites has been selected (as required by the SSL 3/TLS 1
7906 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7907 is set, we interpret this as a request to violate the specification
7908 (the worst that can happen is a handshake failure, and 'correct'
7909 behaviour would result in a handshake failure anyway).
7912 *) In SSL_CTX_add_session, take into account that there might be multiple
7913 SSL_SESSION structures with the same session ID (e.g. when two threads
7914 concurrently obtain them from an external cache).
7915 The internal cache can handle only one SSL_SESSION with a given ID,
7916 so if there's a conflict, we now throw out the old one to achieve
7920 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7921 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7922 some routines that use cipher OIDs: some ciphers do not have OIDs
7923 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7927 *) Simplify the trust setting structure and code. Now we just have
7928 two sequences of OIDs for trusted and rejected settings. These will
7929 typically have values the same as the extended key usage extension
7930 and any application specific purposes.
7932 The trust checking code now has a default behaviour: it will just
7933 check for an object with the same NID as the passed id. Functions can
7934 be provided to override either the default behaviour or the behaviour
7935 for a given id. SSL client, server and email already have functions
7936 in place for compatibility: they check the NID and also return "trusted"
7937 if the certificate is self signed.
7940 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7941 traditional format into an EVP_PKEY structure.
7944 *) Add a password callback function PEM_cb() which either prompts for
7945 a password if usr_data is NULL or otherwise assumes it is a null
7946 terminated password. Allow passwords to be passed on command line
7947 environment or config files in a few more utilities.
7950 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7951 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7952 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7953 Update documentation.
7956 *) Support for ASN1 "NULL" type. This could be handled before by using
7957 ASN1_TYPE but there wasn't any function that would try to read a NULL
7958 and produce an error if it couldn't. For compatibility we also have
7959 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7960 don't allocate anything because they don't need to.
7963 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7965 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7967 *) Rebuild of the memory allocation routines used by OpenSSL code and
7968 possibly others as well. The purpose is to make an interface that
7969 provide hooks so anyone can build a separate set of allocation and
7970 deallocation routines to be used by OpenSSL, for example memory
7971 pool implementations, or something else, which was previously hard
7972 since Malloc(), Realloc() and Free() were defined as macros having
7973 the values malloc, realloc and free, respectively (except for Win32
7974 compilations). The same is provided for memory debugging code.
7975 OpenSSL already comes with functionality to find memory leaks, but
7976 this gives people a chance to debug other memory problems.
7978 With these changes, a new set of functions and macros have appeared:
7980 CRYPTO_set_mem_debug_functions() [F]
7981 CRYPTO_get_mem_debug_functions() [F]
7982 CRYPTO_dbg_set_options() [F]
7983 CRYPTO_dbg_get_options() [F]
7984 CRYPTO_malloc_debug_init() [M]
7986 The memory debug functions are NULL by default, unless the library
7987 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7988 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7989 gives the standard debugging functions that come with OpenSSL) or
7990 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7991 provided by the library user) must be used. When the standard
7992 debugging functions are used, CRYPTO_dbg_set_options can be used to
7993 request additional information:
7994 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7995 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7997 Also, things like CRYPTO_set_mem_functions will always give the
7998 expected result (the new set of functions is used for allocation
7999 and deallocation) at all times, regardless of platform and compiler
8002 To finish it up, some functions that were never use in any other
8003 way than through macros have a new API and new semantic:
8006 CRYPTO_dbg_realloc()
8009 All macros of value have retained their old syntax.
8010 [Richard Levitte and Bodo Moeller]
8012 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8013 ordering of SMIMECapabilities wasn't in "strength order" and there
8014 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8018 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8019 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8020 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8022 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8023 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8024 functionality to handle multipart/signed properly) and a utility
8025 called 'smime' to call all this stuff. This is based on code I
8026 originally wrote for Celo who have kindly allowed it to be
8027 included in OpenSSL.
8030 *) Add variants des_set_key_checked and des_set_key_unchecked of
8031 des_set_key (aka des_key_sched). Global variable des_check_key
8032 decides which of these is called by des_set_key; this way
8033 des_check_key behaves as it always did, but applications and
8034 the library itself, which was buggy for des_check_key == 1,
8035 have a cleaner way to pick the version they need.
8038 *) New function PKCS12_newpass() which changes the password of a
8042 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8043 dynamic mix. In both cases the ids can be used as an index into the
8044 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8045 functions so they accept a list of the field values and the
8046 application doesn't need to directly manipulate the X509_TRUST
8050 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8054 *) Modify the way the V3 extension code looks up extensions. This now
8055 works in a similar way to the object code: we have some "standard"
8056 extensions in a static table which is searched with OBJ_bsearch()
8057 and the application can add dynamic ones if needed. The file
8058 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8059 updated whenever a new extension is added to the core code and kept
8060 in ext_nid order. There is a simple program 'tabtest.c' which checks
8061 this. New extensions are not added too often so this file can readily
8062 be maintained manually.
8064 There are two big advantages in doing things this way. The extensions
8065 can be looked up immediately and no longer need to be "added" using
8066 X509V3_add_standard_extensions(): this function now does nothing.
8067 [Side note: I get *lots* of email saying the extension code doesn't
8068 work because people forget to call this function]
8069 Also no dynamic allocation is done unless new extensions are added:
8070 so if we don't add custom extensions there is no need to call
8071 X509V3_EXT_cleanup().
8074 *) Modify enc utility's salting as follows: make salting the default. Add a
8075 magic header, so unsalted files fail gracefully instead of just decrypting
8076 to garbage. This is because not salting is a big security hole, so people
8077 should be discouraged from doing it.
8080 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8081 digest to be passed on the command line but it only used this
8082 parameter when signing a certificate. Modified so all relevant
8083 operations are affected by the digest parameter including the
8084 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8085 DSA key was used because it didn't fix the digest.
8088 *) Initial certificate chain verify code. Currently tests the untrusted
8089 certificates for consistency with the verify purpose (which is set
8090 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8092 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8093 this is because it will reject chains with invalid extensions whereas
8094 every previous version of OpenSSL and SSLeay made no checks at all.
8096 Trust code: checks the root CA for the relevant trust settings. Trust
8097 settings have an initial value consistent with the verify purpose: e.g.
8098 if the verify purpose is for SSL client use it expects the CA to be
8099 trusted for SSL client use. However the default value can be changed to
8100 permit custom trust settings: one example of this would be to only trust
8101 certificates from a specific "secure" set of CAs.
8103 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8104 which should be used for version portability: especially since the
8105 verify structure is likely to change more often now.
8107 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8108 to set them. If not set then assume SSL clients will verify SSL servers
8111 Two new options to the verify program: -untrusted allows a set of
8112 untrusted certificates to be passed in and -purpose which sets the
8113 intended purpose of the certificate. If a purpose is set then the
8114 new chain verify code is used to check extension consistency.
8117 *) Support for the authority information access extension.
8120 *) Modify RSA and DSA PEM read routines to transparently handle
8121 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8122 public keys in a format compatible with certificate
8123 SubjectPublicKeyInfo structures. Unfortunately there were already
8124 functions called *_PublicKey_* which used various odd formats so
8125 these are retained for compatibility: however the DSA variants were
8126 never in a public release so they have been deleted. Changed dsa/rsa
8127 utilities to handle the new format: note no releases ever handled public
8128 keys so we should be OK.
8130 The primary motivation for this change is to avoid the same fiasco
8131 that dogs private keys: there are several incompatible private key
8132 formats some of which are standard and some OpenSSL specific and
8133 require various evil hacks to allow partial transparent handling and
8134 even then it doesn't work with DER formats. Given the option anything
8135 other than PKCS#8 should be dumped: but the other formats have to
8136 stay in the name of compatibility.
8138 With public keys and the benefit of hindsight one standard format
8139 is used which works with EVP_PKEY, RSA or DSA structures: though
8140 it clearly returns an error if you try to read the wrong kind of key.
8142 Added a -pubkey option to the 'x509' utility to output the public key.
8143 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8144 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8145 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8146 that do the same as the EVP_PKEY_assign_*() except they up the
8147 reference count of the added key (they don't "swallow" the
8151 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8152 CRLs would fail if the file contained no certificates or no CRLs:
8153 added a new function to read in both types and return the number
8154 read: this means that if none are read it will be an error. The
8155 DER versions of the certificate and CRL reader would always fail
8156 because it isn't possible to mix certificates and CRLs in DER format
8157 without choking one or the other routine. Changed this to just read
8158 a certificate: this is the best we can do. Also modified the code
8159 in apps/verify.c to take notice of return codes: it was previously
8160 attempting to read in certificates from NULL pointers and ignoring
8161 any errors: this is one reason why the cert and CRL reader seemed
8162 to work. It doesn't check return codes from the default certificate
8163 routines: these may well fail if the certificates aren't installed.
8166 *) Code to support otherName option in GeneralName.
8169 *) First update to verify code. Change the verify utility
8170 so it warns if it is passed a self signed certificate:
8171 for consistency with the normal behaviour. X509_verify
8172 has been modified to it will now verify a self signed
8173 certificate if *exactly* the same certificate appears
8174 in the store: it was previously impossible to trust a
8175 single self signed certificate. This means that:
8176 openssl verify ss.pem
8177 now gives a warning about a self signed certificate but
8178 openssl verify -CAfile ss.pem ss.pem
8182 *) For servers, store verify_result in SSL_SESSION data structure
8183 (and add it to external session representation).
8184 This is needed when client certificate verifications fails,
8185 but an application-provided verification callback (set by
8186 SSL_CTX_set_cert_verify_callback) allows accepting the session
8187 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8188 but returns 1): When the session is reused, we have to set
8189 ssl->verify_result to the appropriate error code to avoid
8191 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8193 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8194 case in PKCS7_dataInit() where the signed PKCS7 structure
8195 didn't contain any existing data because it was being created.
8196 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8198 *) Add a salt to the key derivation routines in enc.c. This
8199 forms the first 8 bytes of the encrypted file. Also add a
8200 -S option to allow a salt to be input on the command line.
8203 *) New function X509_cmp(). Oddly enough there wasn't a function
8204 to compare two certificates. We do this by working out the SHA1
8205 hash and comparing that. X509_cmp() will be needed by the trust
8209 *) SSL_get1_session() is like SSL_get_session(), but increments
8210 the reference count in the SSL_SESSION returned.
8211 [Geoff Thorpe <geoff@eu.c2.net>]
8213 *) Fix for 'req': it was adding a null to request attributes.
8214 Also change the X509_LOOKUP and X509_INFO code to handle
8215 certificate auxiliary information.
8218 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8222 *) Add the possibility to add extra information to the memory leak
8223 detecting output, to form tracebacks, showing from where each
8224 allocation was originated: CRYPTO_push_info("constant string") adds
8225 the string plus current file name and line number to a per-thread
8226 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8227 is like calling CYRPTO_pop_info() until the stack is empty.
8228 Also updated memory leak detection code to be multi-thread-safe.
8231 *) Add options -text and -noout to pkcs7 utility and delete the
8232 encryption options which never did anything. Update docs.
8235 *) Add options to some of the utilities to allow the pass phrase
8236 to be included on either the command line (not recommended on
8237 OSes like Unix) or read from the environment. Update the
8238 manpages and fix a few bugs.
8241 *) Add a few manpages for some of the openssl commands.
8244 *) Fix the -revoke option in ca. It was freeing up memory twice,
8245 leaking and not finding already revoked certificates.
8248 *) Extensive changes to support certificate auxiliary information.
8249 This involves the use of X509_CERT_AUX structure and X509_AUX
8250 functions. An X509_AUX function such as PEM_read_X509_AUX()
8251 can still read in a certificate file in the usual way but it
8252 will also read in any additional "auxiliary information". By
8253 doing things this way a fair degree of compatibility can be
8254 retained: existing certificates can have this information added
8255 using the new 'x509' options.
8257 Current auxiliary information includes an "alias" and some trust
8258 settings. The trust settings will ultimately be used in enhanced
8259 certificate chain verification routines: currently a certificate
8260 can only be trusted if it is self signed and then it is trusted
8264 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8265 The problem was that one of the replacement routines had not been working
8266 since SSLeay releases. For now the offending routine has been replaced
8267 with non-optimised assembler. Even so, this now gives around 95%
8268 performance improvement for 1024 bit RSA signs.
8271 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8272 handling. Most clients have the effective key size in bits equal to
8273 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8274 A few however don't do this and instead use the size of the decrypted key
8275 to determine the RC2 key length and the AlgorithmIdentifier to determine
8276 the effective key length. In this case the effective key length can still
8277 be 40 bits but the key length can be 168 bits for example. This is fixed
8278 by manually forcing an RC2 key into the EVP_PKEY structure because the
8279 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8280 the key length and effective key length are equal.
8283 *) Add a bunch of functions that should simplify the creation of
8284 X509_NAME structures. Now you should be able to do:
8285 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8286 and have it automatically work out the correct field type and fill in
8287 the structures. The more adventurous can try:
8288 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8289 and it will (hopefully) work out the correct multibyte encoding.
8292 *) Change the 'req' utility to use the new field handling and multibyte
8293 copy routines. Before the DN field creation was handled in an ad hoc
8294 way in req, ca, and x509 which was rather broken and didn't support
8295 BMPStrings or UTF8Strings. Since some software doesn't implement
8296 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8297 using the dirstring_type option. See the new comment in the default
8298 openssl.cnf for more info.
8301 *) Make crypto/rand/md_rand.c more robust:
8302 - Assure unique random numbers after fork().
8303 - Make sure that concurrent threads access the global counter and
8304 md serializably so that we never lose entropy in them
8305 or use exactly the same state in multiple threads.
8306 Access to the large state is not always serializable because
8307 the additional locking could be a performance killer, and
8308 md should be large enough anyway.
8311 *) New file apps/app_rand.c with commonly needed functionality
8312 for handling the random seed file.
8314 Use the random seed file in some applications that previously did not:
8316 dsaparam -genkey (which also ignored its '-rand' option),
8319 x509 (when signing).
8320 Except on systems with /dev/urandom, it is crucial to have a random
8321 seed file at least for key creation, DSA signing, and for DH exchanges;
8322 for RSA signatures we could do without one.
8324 gendh and gendsa (unlike genrsa) used to read only the first byte
8325 of each file listed in the '-rand' option. The function as previously
8326 found in genrsa is now in app_rand.c and is used by all programs
8327 that support '-rand'.
8330 *) In RAND_write_file, use mode 0600 for creating files;
8331 don't just chmod when it may be too late.
8334 *) Report an error from X509_STORE_load_locations
8335 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8338 *) New function ASN1_mbstring_copy() this copies a string in either
8339 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8340 into an ASN1_STRING type. A mask of permissible types is passed
8341 and it chooses the "minimal" type to use or an error if not type
8345 *) Add function equivalents to the various macros in asn1.h. The old
8346 macros are retained with an M_ prefix. Code inside the library can
8347 use the M_ macros. External code (including the openssl utility)
8348 should *NOT* in order to be "shared library friendly".
8351 *) Add various functions that can check a certificate's extensions
8352 to see if it usable for various purposes such as SSL client,
8353 server or S/MIME and CAs of these types. This is currently
8354 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8355 verification. Also added a -purpose flag to x509 utility to
8356 print out all the purposes.
8359 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8363 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8364 for, obtain and decode and extension and obtain its critical flag.
8365 This allows all the necessary extension code to be handled in a
8366 single function call.
8369 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8370 platforms. See crypto/rc4/rc4_enc.c for further details.
8373 *) New -noout option to asn1parse. This causes no output to be produced
8374 its main use is when combined with -strparse and -out to extract data
8375 from a file (which may not be in ASN.1 format).
8378 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8379 when producing the local key id.
8380 [Richard Levitte <levitte@stacken.kth.se>]
8382 *) New option -dhparam in s_server. This allows a DH parameter file to be
8383 stated explicitly. If it is not stated then it tries the first server
8384 certificate file. The previous behaviour hard coded the filename
8388 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8389 a public key to be input or output. For example:
8390 openssl rsa -in key.pem -pubout -out pubkey.pem
8391 Also added necessary DSA public key functions to handle this.
8394 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8395 in the message. This was handled by allowing
8396 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8397 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8399 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8400 to the end of the strings whereas this didn't. This would cause problems
8401 if strings read with d2i_ASN1_bytes() were later modified.
8402 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8404 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8405 data and it contains EOF it will end up returning an error. This is
8406 caused by input 46 bytes long. The cause is due to the way base64
8407 BIOs find the start of base64 encoded data. They do this by trying a
8408 trial decode on each line until they find one that works. When they
8409 do a flag is set and it starts again knowing it can pass all the
8410 data directly through the decoder. Unfortunately it doesn't reset
8411 the context it uses. This means that if EOF is reached an attempt
8412 is made to pass two EOFs through the context and this causes the
8413 resulting error. This can also cause other problems as well. As is
8414 usual with these problems it takes *ages* to find and the fix is
8415 trivial: move one line.
8416 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8418 *) Ugly workaround to get s_client and s_server working under Windows. The
8419 old code wouldn't work because it needed to select() on sockets and the
8420 tty (for keypresses and to see if data could be written). Win32 only
8421 supports select() on sockets so we select() with a 1s timeout on the
8422 sockets and then see if any characters are waiting to be read, if none
8423 are present then we retry, we also assume we can always write data to
8424 the tty. This isn't nice because the code then blocks until we've
8425 received a complete line of data and it is effectively polling the
8426 keyboard at 1s intervals: however it's quite a bit better than not
8427 working at all :-) A dedicated Windows application might handle this
8428 with an event loop for example.
8431 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8432 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8433 will be called when RSA_sign() and RSA_verify() are used. This is useful
8434 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8435 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8436 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8437 This necessitated the support of an extra signature type NID_md5_sha1
8438 for SSL signatures and modifications to the SSL library to use it instead
8439 of calling RSA_public_decrypt() and RSA_private_encrypt().
8442 *) Add new -verify -CAfile and -CApath options to the crl program, these
8443 will lookup a CRL issuers certificate and verify the signature in a
8444 similar way to the verify program. Tidy up the crl program so it
8445 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8446 less strict. It will now permit CRL extensions even if it is not
8447 a V2 CRL: this will allow it to tolerate some broken CRLs.
8450 *) Initialize all non-automatic variables each time one of the openssl
8451 sub-programs is started (this is necessary as they may be started
8452 multiple times from the "OpenSSL>" prompt).
8453 [Lennart Bang, Bodo Moeller]
8455 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8456 removing all other RSA functionality (this is what NO_RSA does). This
8457 is so (for example) those in the US can disable those operations covered
8458 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8462 *) Non-copying interface to BIO pairs.
8463 (still largely untested)
8466 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8467 ASCII string. This was handled independently in various places before.
8470 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8471 UTF8 strings a character at a time.
8474 *) Use client_version from client hello to select the protocol
8475 (s23_srvr.c) and for RSA client key exchange verification
8476 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8479 *) Add various utility functions to handle SPKACs, these were previously
8480 handled by poking round in the structure internals. Added new function
8481 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8482 print, verify and generate SPKACs. Based on an original idea from
8483 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8486 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8489 *) Allow the config file extension section to be overwritten on the
8490 command line. Based on an original idea from Massimiliano Pala
8491 <madwolf@comune.modena.it>. The new option is called -extensions
8492 and can be applied to ca, req and x509. Also -reqexts to override
8493 the request extensions in req and -crlexts to override the crl extensions
8497 *) Add new feature to the SPKAC handling in ca. Now you can include
8498 the same field multiple times by preceding it by "XXXX." for example:
8501 this is the same syntax as used in the req config file.
8504 *) Allow certificate extensions to be added to certificate requests. These
8505 are specified in a 'req_extensions' option of the req section of the
8506 config file. They can be printed out with the -text option to req but
8507 are otherwise ignored at present.
8510 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8511 data read consists of only the final block it would not decrypted because
8512 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8513 A misplaced 'break' also meant the decrypted final block might not be
8514 copied until the next read.
8517 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8518 a few extra parameters to the DH structure: these will be useful if
8519 for example we want the value of 'q' or implement X9.42 DH.
8522 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8523 provides hooks that allow the default DSA functions or functions on a
8524 "per key" basis to be replaced. This allows hardware acceleration and
8525 hardware key storage to be handled without major modification to the
8526 library. Also added low level modexp hooks and CRYPTO_EX structure and
8527 associated functions.
8530 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8531 as "read only": it can't be written to and the buffer it points to will
8532 not be freed. Reading from a read only BIO is much more efficient than
8533 a normal memory BIO. This was added because there are several times when
8534 an area of memory needs to be read from a BIO. The previous method was
8535 to create a memory BIO and write the data to it, this results in two
8536 copies of the data and an O(n^2) reading algorithm. There is a new
8537 function BIO_new_mem_buf() which creates a read only memory BIO from
8538 an area of memory. Also modified the PKCS#7 routines to use read only
8542 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8543 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8544 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8545 but a retry condition occured while trying to read the rest.
8548 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8549 NID_pkcs7_encrypted by default: this was wrong since this should almost
8550 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8551 the encrypted data type: this is a more sensible place to put it and it
8552 allows the PKCS#12 code to be tidied up that duplicated this
8556 *) Changed obj_dat.pl script so it takes its input and output files on
8557 the command line. This should avoid shell escape redirection problems
8561 *) Initial support for certificate extension requests, these are included
8562 in things like Xenroll certificate requests. Included functions to allow
8563 extensions to be obtained and added.
8566 *) -crlf option to s_client and s_server for sending newlines as
8567 CRLF (as required by many protocols).
8570 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8572 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8573 [Ralf S. Engelschall]
8575 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8576 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8578 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8582 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8583 DH parameters/keys (q is lost during that conversion, but the resulting
8584 DH parameters contain its length).
8586 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8587 much faster than DH_generate_parameters (which creates parameters
8588 where p = 2*q + 1), and also the smaller q makes DH computations
8589 much more efficient (160-bit exponentiation instead of 1024-bit
8590 exponentiation); so this provides a convenient way to support DHE
8591 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8592 utter importance to use
8593 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8595 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8596 when such DH parameters are used, because otherwise small subgroup
8597 attacks may become possible!
8600 *) Avoid memory leak in i2d_DHparams.
8603 *) Allow the -k option to be used more than once in the enc program:
8604 this allows the same encrypted message to be read by multiple recipients.
8607 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8608 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8609 it will always use the numerical form of the OID, even if it has a short
8613 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8614 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8615 otherwise bn_mod_exp was called. In the case of hardware keys for example
8616 no private key components need be present and it might store extra data
8617 in the RSA structure, which cannot be accessed from bn_mod_exp.
8618 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8619 private key operations.
8622 *) Added support for SPARC Linux.
8625 *) pem_password_cb function type incompatibly changed from
8626 typedef int pem_password_cb(char *buf, int size, int rwflag);
8628 ....(char *buf, int size, int rwflag, void *userdata);
8629 so that applications can pass data to their callbacks:
8630 The PEM[_ASN1]_{read,write}... functions and macros now take an
8631 additional void * argument, which is just handed through whenever
8632 the password callback is called.
8633 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8635 New function SSL_CTX_set_default_passwd_cb_userdata.
8637 Compatibility note: As many C implementations push function arguments
8638 onto the stack in reverse order, the new library version is likely to
8639 interoperate with programs that have been compiled with the old
8640 pem_password_cb definition (PEM_whatever takes some data that
8641 happens to be on the stack as its last argument, and the callback
8642 just ignores this garbage); but there is no guarantee whatsoever that
8645 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8646 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8647 problems not only on Windows, but also on some Unix platforms.
8648 To avoid problematic command lines, these definitions are now in an
8649 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8650 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8653 *) MIPS III/IV assembler module is reimplemented.
8656 *) More DES library cleanups: remove references to srand/rand and
8657 delete an unused file.
8660 *) Add support for the the free Netwide assembler (NASM) under Win32,
8661 since not many people have MASM (ml) and it can be hard to obtain.
8662 This is currently experimental but it seems to work OK and pass all
8663 the tests. Check out INSTALL.W32 for info.
8666 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8667 without temporary keys kept an extra copy of the server key,
8668 and connections with temporary keys did not free everything in case
8672 *) New function RSA_check_key and new openssl rsa option -check
8673 for verifying the consistency of RSA keys.
8674 [Ulf Moeller, Bodo Moeller]
8676 *) Various changes to make Win32 compile work:
8677 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8678 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8679 comparison" warnings.
8680 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8683 *) Add a debugging option to PKCS#5 v2 key generation function: when
8684 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8685 derived keys are printed to stderr.
8688 *) Copy the flags in ASN1_STRING_dup().
8689 [Roman E. Pavlov <pre@mo.msk.ru>]
8691 *) The x509 application mishandled signing requests containing DSA
8692 keys when the signing key was also DSA and the parameters didn't match.
8694 It was supposed to omit the parameters when they matched the signing key:
8695 the verifying software was then supposed to automatically use the CA's
8696 parameters if they were absent from the end user certificate.
8698 Omitting parameters is no longer recommended. The test was also
8699 the wrong way round! This was probably due to unusual behaviour in
8700 EVP_cmp_parameters() which returns 1 if the parameters match.
8701 This meant that parameters were omitted when they *didn't* match and
8702 the certificate was useless. Certificates signed with 'ca' didn't have
8704 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8706 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8707 The interface is as follows:
8708 Applications can use
8709 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8710 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8711 "off" is now the default.
8712 The library internally uses
8713 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8714 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8715 to disable memory-checking temporarily.
8717 Some inconsistent states that previously were possible (and were
8718 even the default) are now avoided.
8720 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8721 with each memory chunk allocated; this is occasionally more helpful
8722 than just having a counter.
8724 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8726 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8730 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8731 which largely parallels "options", but is for changing API behaviour,
8732 whereas "options" are about protocol behaviour.
8733 Initial "mode" flags are:
8735 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8736 a single record has been written.
8737 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8738 retries use the same buffer location.
8739 (But all of the contents must be
8743 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8746 *) Fix problems with no-hmac etc.
8747 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8749 *) New functions RSA_get_default_method(), RSA_set_method() and
8750 RSA_get_method(). These allows replacement of RSA_METHODs without having
8751 to mess around with the internals of an RSA structure.
8754 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8755 Also really enable memory leak checks in openssl.c and in some
8757 [Chad C. Mulligan, Bodo Moeller]
8759 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8760 up the length of negative integers. This has now been simplified to just
8761 store the length when it is first determined and use it later, rather
8762 than trying to keep track of where data is copied and updating it to
8764 [Steve Henson, reported by Brien Wheeler
8765 <bwheeler@authentica-security.com>]
8767 *) Add a new function PKCS7_signatureVerify. This allows the verification
8768 of a PKCS#7 signature but with the signing certificate passed to the
8769 function itself. This contrasts with PKCS7_dataVerify which assumes the
8770 certificate is present in the PKCS#7 structure. This isn't always the
8771 case: certificates can be omitted from a PKCS#7 structure and be
8772 distributed by "out of band" means (such as a certificate database).
8775 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8776 function prototypes in pem.h, also change util/mkdef.pl to add the
8777 necessary function names.
8780 *) mk1mf.pl (used by Windows builds) did not properly read the
8781 options set by Configure in the top level Makefile, and Configure
8782 was not even able to write more than one option correctly.
8783 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8786 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8787 file to be loaded from a BIO or FILE pointer. The BIO version will
8788 for example allow memory BIOs to contain config info.
8791 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8792 Whoever hopes to achieve shared-library compatibility across versions
8793 must use this, not the compile-time macro.
8794 (Exercise 0.9.4: Which is the minimum library version required by
8796 Note: All this applies only to multi-threaded programs, others don't
8800 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8801 through a BIO pair triggered the default case, i.e.
8802 SSLerr(...,SSL_R_UNKNOWN_STATE).
8805 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8806 can use the SSL library even if none of the specific BIOs is
8810 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8811 for the encoded length.
8812 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8814 *) Add initial documentation of the X509V3 functions.
8817 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8818 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8819 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8820 secure PKCS#8 private key format with a high iteration count.
8823 *) Fix determination of Perl interpreter: A perl or perl5
8824 _directory_ in $PATH was also accepted as the interpreter.
8825 [Ralf S. Engelschall]
8827 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8828 wrong with it but it was very old and did things like calling
8829 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8833 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8834 to use the new extension code.
8837 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8838 with macros. This should make it easier to change their form, add extra
8839 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8843 *) Add to configuration table a new entry that can specify an alternative
8844 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8845 according to Mark Crispin <MRC@Panda.COM>.
8849 *) DES CBC did not update the IV. Weird.
8852 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8853 Changing the behaviour of the former might break existing programs --
8854 where IV updating is needed, des_ncbc_encrypt can be used.
8857 *) When bntest is run from "make test" it drives bc to check its
8858 calculations, as well as internally checking them. If an internal check
8859 fails, it needs to cause bc to give a non-zero result or make test carries
8860 on without noticing the failure. Fixed.
8863 *) DES library cleanups.
8866 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8867 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8868 ciphers. NOTE: although the key derivation function has been verified
8869 against some published test vectors it has not been extensively tested
8870 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8874 *) Instead of "mkdir -p", which is not fully portable, use new
8875 Perl script "util/mkdir-p.pl".
8878 *) Rewrite the way password based encryption (PBE) is handled. It used to
8879 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8880 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8881 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8882 the 'parameter' field of the AlgorithmIdentifier is passed to the
8883 underlying key generation function so it must do its own ASN1 parsing.
8884 This has also changed the EVP_PBE_CipherInit() function which now has a
8885 'parameter' argument instead of literal salt and iteration count values
8886 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8889 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8890 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8891 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8892 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8893 value was just used as a "magic string" and not used directly its
8894 value doesn't matter.
8897 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8901 *) "linux-sparc64" configuration (ultrapenguin).
8902 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8903 "linux-sparc" configuration.
8904 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8906 *) config now generates no-xxx options for missing ciphers.
8909 *) Support the EBCDIC character set (work in progress).
8910 File ebcdic.c not yet included because it has a different license.
8911 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8913 *) Support BS2000/OSD-POSIX.
8914 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8916 *) Make callbacks for key generation use void * instead of char *.
8919 *) Make S/MIME samples compile (not yet tested).
8922 *) Additional typesafe stacks.
8925 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8929 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8931 *) New configuration variant "sco5-gcc".
8933 *) Updated some demos.
8934 [Sean O Riordain, Wade Scholine]
8936 *) Add missing BIO_free at exit of pkcs12 application.
8939 *) Fix memory leak in conf.c.
8942 *) Updates for Win32 to assembler version of MD5.
8945 *) Set #! path to perl in apps/der_chop to where we found it
8946 instead of using a fixed path.
8949 *) SHA library changes for irix64-mips4-cc.
8952 *) Improvements for VMS support.
8956 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8958 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8959 This also avoids the problems with SC4.2 and unpatched SC5.
8960 [Andy Polyakov <appro@fy.chalmers.se>]
8962 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8963 These are required because of the typesafe stack would otherwise break
8964 existing code. If old code used a structure member which used to be STACK
8965 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8966 sk_num or sk_value it would produce an error because the num, data members
8967 are not present in STACK_OF. Now it just produces a warning. sk_set
8968 replaces the old method of assigning a value to sk_value
8969 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8970 that does this will no longer work (and should use sk_set instead) but
8971 this could be regarded as a "questionable" behaviour anyway.
8974 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8975 correctly handle encrypted S/MIME data.
8978 *) Change type of various DES function arguments from des_cblock
8979 (which means, in function argument declarations, pointer to char)
8980 to des_cblock * (meaning pointer to array with 8 char elements),
8981 which allows the compiler to do more typechecking; it was like
8982 that back in SSLeay, but with lots of ugly casts.
8984 Introduce new type const_des_cblock.
8987 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8988 problems: find RecipientInfo structure that matches recipient certificate
8989 and initialise the ASN1 structures properly based on passed cipher.
8992 *) Belatedly make the BN tests actually check the results.
8995 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8996 to and from BNs: it was completely broken. New compilation option
8997 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8998 key elements as negative integers.
9001 *) Reorganize and speed up MD5.
9002 [Andy Polyakov <appro@fy.chalmers.se>]
9005 [Richard Levitte <richard@levitte.org>]
9007 *) New option -out to asn1parse to allow the parsed structure to be
9008 output to a file. This is most useful when combined with the -strparse
9009 option to examine the output of things like OCTET STRINGS.
9012 *) Make SSL library a little more fool-proof by not requiring any longer
9013 that SSL_set_{accept,connect}_state be called before
9014 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9015 in many applications because usually everything *appeared* to work as
9016 intended anyway -- now it really works as intended).
9019 *) Move openssl.cnf out of lib/.
9022 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9023 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9024 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9025 [Ralf S. Engelschall]
9027 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9028 handle PKCS#7 enveloped data properly.
9029 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9031 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9032 copying pointers. The cert_st handling is changed by this in
9033 various ways (and thus what used to be known as ctx->default_cert
9034 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9035 any longer when s->cert does not give us what we need).
9036 ssl_cert_instantiate becomes obsolete by this change.
9037 As soon as we've got the new code right (possibly it already is?),
9038 we have solved a couple of bugs of the earlier code where s->cert
9039 was used as if it could not have been shared with other SSL structures.
9041 Note that using the SSL API in certain dirty ways now will result
9042 in different behaviour than observed with earlier library versions:
9043 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9044 does not influence s as it used to.
9046 In order to clean up things more thoroughly, inside SSL_SESSION
9047 we don't use CERT any longer, but a new structure SESS_CERT
9048 that holds per-session data (if available); currently, this is
9049 the peer's certificate chain and, for clients, the server's certificate
9050 and temporary key. CERT holds only those values that can have
9051 meaningful defaults in an SSL_CTX.
9054 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9055 from the internal representation. Various PKCS#7 fixes: remove some
9056 evil casts and set the enc_dig_alg field properly based on the signing
9060 *) Allow PKCS#12 password to be set from the command line or the
9061 environment. Let 'ca' get its config file name from the environment
9062 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9066 *) Allow certificate policies extension to use an IA5STRING for the
9067 organization field. This is contrary to the PKIX definition but
9068 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9072 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9073 without disallowing inline assembler and the like for non-pedantic builds.
9076 *) Support Borland C++ builder.
9077 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9082 *) SHA-1 cleanups and performance enhancements.
9083 [Andy Polyakov <appro@fy.chalmers.se>]
9085 *) Sparc v8plus assembler for the bignum library.
9086 [Andy Polyakov <appro@fy.chalmers.se>]
9088 *) Accept any -xxx and +xxx compiler options in Configure.
9091 *) Update HPUX configuration.
9094 *) Add missing sk_<type>_unshift() function to safestack.h
9095 [Ralf S. Engelschall]
9097 *) New function SSL_CTX_use_certificate_chain_file that sets the
9098 "extra_cert"s in addition to the certificate. (This makes sense
9099 only for "PEM" format files, as chains as a whole are not
9103 *) Support verify_depth from the SSL API.
9104 x509_vfy.c had what can be considered an off-by-one-error:
9105 Its depth (which was not part of the external interface)
9106 was actually counting the number of certificates in a chain;
9107 now it really counts the depth.
9110 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9111 instead of X509err, which often resulted in confusing error
9112 messages since the error codes are not globally unique
9113 (e.g. an alleged error in ssl3_accept when a certificate
9114 didn't match the private key).
9116 *) New function SSL_CTX_set_session_id_context that allows to set a default
9117 value (so that you don't need SSL_set_session_id_context for each
9118 connection using the SSL_CTX).
9121 *) OAEP decoding bug fix.
9124 *) Support INSTALL_PREFIX for package builders, as proposed by
9128 *) New Configure options "threads" and "no-threads". For systems
9129 where the proper compiler options are known (currently Solaris
9130 and Linux), "threads" is the default.
9133 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9136 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9137 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9138 such as /usr/local/bin.
9141 *) "make linux-shared" to build shared libraries.
9142 [Niels Poppe <niels@netbox.org>]
9144 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9147 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9148 extension adding in x509 utility.
9151 *) Remove NOPROTO sections and error code comments.
9154 *) Partial rewrite of the DEF file generator to now parse the ANSI
9158 *) New Configure options --prefix=DIR and --openssldir=DIR.
9161 *) Complete rewrite of the error code script(s). It is all now handled
9162 by one script at the top level which handles error code gathering,
9163 header rewriting and C source file generation. It should be much better
9164 than the old method: it now uses a modified version of Ulf's parser to
9165 read the ANSI prototypes in all header files (thus the old K&R definitions
9166 aren't needed for error creation any more) and do a better job of
9167 translating function codes into names. The old 'ASN1 error code imbedded
9168 in a comment' is no longer necessary and it doesn't use .err files which
9169 have now been deleted. Also the error code call doesn't have to appear all
9170 on one line (which resulted in some large lines...).
9173 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9176 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9177 0 (which usually indicates a closed connection), but continue reading.
9180 *) Fix some race conditions.
9183 *) Add support for CRL distribution points extension. Add Certificate
9184 Policies and CRL distribution points documentation.
9187 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9190 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9191 8 of keying material. Merlin has also confirmed interop with this fix
9192 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9193 [Merlin Hughes <merlin@baltimore.ie>]
9195 *) Fix lots of warnings.
9196 [Richard Levitte <levitte@stacken.kth.se>]
9198 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9199 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9200 [Richard Levitte <levitte@stacken.kth.se>]
9202 *) Fix problems with sizeof(long) == 8.
9203 [Andy Polyakov <appro@fy.chalmers.se>]
9205 *) Change functions to ANSI C.
9208 *) Fix typos in error codes.
9209 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9211 *) Remove defunct assembler files from Configure.
9214 *) SPARC v8 assembler BIGNUM implementation.
9215 [Andy Polyakov <appro@fy.chalmers.se>]
9217 *) Support for Certificate Policies extension: both print and set.
9218 Various additions to support the r2i method this uses.
9221 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9222 return a const string when you are expecting an allocated buffer.
9225 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9226 types DirectoryString and DisplayText.
9229 *) Add code to allow r2i extensions to access the configuration database,
9230 add an LHASH database driver and add several ctx helper functions.
9233 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9234 fail when they extended the size of a BIGNUM.
9237 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9238 support typesafe stack.
9241 *) Fix typo in SSL_[gs]et_options().
9242 [Nils Frostberg <nils@medcom.se>]
9244 *) Delete various functions and files that belonged to the (now obsolete)
9245 old X509V3 handling code.
9248 *) New Configure option "rsaref".
9251 *) Don't auto-generate pem.h.
9254 *) Introduce type-safe ASN.1 SETs.
9257 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9258 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9260 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9261 that links with OpenSSL (well at least cause lots of warnings), but fear
9262 not: the conversion is trivial, and it eliminates loads of evil casts. A
9263 few STACKed things have been converted already. Feel free to convert more.
9264 In the fullness of time, I'll do away with the STACK type altogether.
9267 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9268 specified in <certfile> by updating the entry in the index.txt file.
9269 This way one no longer has to edit the index.txt file manually for
9270 revoking a certificate. The -revoke option does the gory details now.
9271 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9273 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9274 `-text' option at all and this way the `-noout -text' combination was
9275 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9276 [Ralf S. Engelschall]
9278 *) Make sure a corresponding plain text error message exists for the
9279 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9280 verify callback function determined that a certificate was revoked.
9281 [Ralf S. Engelschall]
9283 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9284 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9285 all available cipers including rc5, which was forgotten until now.
9286 In order to let the testing shell script know which algorithms
9287 are available, a new (up to now undocumented) command
9288 "openssl list-cipher-commands" is used.
9291 *) Bugfix: s_client occasionally would sleep in select() when
9292 it should have checked SSL_pending() first.
9295 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9296 the raw DSA values prior to ASN.1 encoding.
9299 *) Tweaks to Configure
9300 [Niels Poppe <niels@netbox.org>]
9302 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9306 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9309 *) New config option to avoid instructions that are illegal on the 80386.
9310 The default code is faster, but requires at least a 486.
9313 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9314 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9315 same as SSL2_VERSION anyway.
9318 *) New "-showcerts" option for s_client.
9321 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9322 application. Various cleanups and fixes.
9325 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9326 modify error routines to work internally. Add error codes and PBE init
9327 to library startup routines.
9330 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9331 packing functions to asn1 and evp. Changed function names and error
9332 codes along the way.
9335 *) PKCS12 integration: and so it begins... First of several patches to
9336 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9337 objects to objects.h
9340 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9341 and display support for Thawte strong extranet extension.
9344 *) Add LinuxPPC support.
9345 [Jeff Dubrule <igor@pobox.org>]
9347 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9348 bn_div_words in alpha.s.
9349 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9351 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9352 OAEP isn't supported when OpenSSL is built with RSAref.
9353 [Ulf Moeller <ulf@fitug.de>]
9355 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9356 so they no longer are missing under -DNOPROTO.
9357 [Soren S. Jorvang <soren@t.dk>]
9360 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9362 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9363 doesn't work when the session is reused. Coming soon!
9366 *) Fix a security hole, that allows sessions to be reused in the wrong
9367 context thus bypassing client cert protection! All software that uses
9368 client certs and session caches in multiple contexts NEEDS PATCHING to
9369 allow session reuse! A fuller solution is in the works.
9370 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9372 *) Some more source tree cleanups (removed obsolete files
9373 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9374 permission on "config" script to be executable) and a fix for the INSTALL
9376 [Ulf Moeller <ulf@fitug.de>]
9378 *) Remove some legacy and erroneous uses of malloc, free instead of
9380 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9382 *) Make rsa_oaep_test return non-zero on error.
9383 [Ulf Moeller <ulf@fitug.de>]
9385 *) Add support for native Solaris shared libraries. Configure
9386 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9387 if someone would make that last step automatic.
9388 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9390 *) ctx_size was not built with the right compiler during "make links". Fixed.
9393 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9394 except NULL ciphers". This means the default cipher list will no longer
9395 enable NULL ciphers. They need to be specifically enabled e.g. with
9396 the string "DEFAULT:eNULL".
9399 *) Fix to RSA private encryption routines: if p < q then it would
9400 occasionally produce an invalid result. This will only happen with
9401 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9404 *) Be less restrictive and allow also `perl util/perlpath.pl
9405 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9406 because this way one can also use an interpreter named `perl5' (which is
9407 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9408 installed as `perl').
9409 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9411 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9412 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9414 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9415 advapi32.lib to Win32 build and change the pem test comparision
9416 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9417 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9418 and crypto/des/ede_cbcm_enc.c.
9421 *) DES quad checksum was broken on big-endian architectures. Fixed.
9424 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9425 Win32 test batch file so it (might) work again. The Win32 test batch file
9426 is horrible: I feel ill....
9429 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9430 in e_os.h. Audit of header files to check ANSI and non ANSI
9431 sections: 10 functions were absent from non ANSI section and not exported
9432 from Windows DLLs. Fixed up libeay.num for new functions.
9435 *) Make `openssl version' output lines consistent.
9436 [Ralf S. Engelschall]
9438 *) Fix Win32 symbol export lists for BIO functions: Added
9439 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9440 to ms/libeay{16,32}.def.
9441 [Ralf S. Engelschall]
9443 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9444 fine under Unix and passes some trivial tests I've now added. But the
9445 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9446 added to make sure no one expects that this stuff really works in the
9447 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9448 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9450 [Ralf S. Engelschall]
9452 *) Fix the generation of two part addresses in perl.
9453 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9455 *) Add config entry for Linux on MIPS.
9456 [John Tobey <jtobey@channel1.com>]
9458 *) Make links whenever Configure is run, unless we are on Windoze.
9461 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9462 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9466 *) Add a useful kludge to allow package maintainers to specify compiler and
9467 other platforms details on the command line without having to patch the
9468 Configure script everytime: One now can use ``perl Configure
9469 <id>:<details>'', i.e. platform ids are allowed to have details appended
9470 to them (seperated by colons). This is treated as there would be a static
9471 pre-configured entry in Configure's %table under key <id> with value
9472 <details> and ``perl Configure <id>'' is called. So, when you want to
9473 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9474 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9475 now, which overrides the FreeBSD-elf entry on-the-fly.
9476 [Ralf S. Engelschall]
9478 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9481 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9482 on the `perl Configure ...' command line. This way one can compile
9483 OpenSSL libraries with Position Independent Code (PIC) which is needed
9484 for linking it into DSOs.
9485 [Ralf S. Engelschall]
9487 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9491 *) Cleaned up the LICENSE document: The official contact for any license
9492 questions now is the OpenSSL core team under openssl-core@openssl.org.
9493 And add a paragraph about the dual-license situation to make sure people
9494 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9495 to the OpenSSL toolkit.
9496 [Ralf S. Engelschall]
9498 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9499 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9500 Additonally cleaned up the `make links' target: Remove unnecessary
9501 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9502 to speed processing and no longer clutter the display with confusing
9503 stuff. Instead only the actually done links are displayed.
9504 [Ralf S. Engelschall]
9506 *) Permit null encryption ciphersuites, used for authentication only. It used
9507 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9508 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9512 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9513 signed attributes when verifying signatures (this would break them),
9514 the detached data encoding was wrong and public keys obtained using
9515 X509_get_pubkey() weren't freed.
9518 *) Add text documentation for the BUFFER functions. Also added a work around
9519 to a Win95 console bug. This was triggered by the password read stuff: the
9520 last character typed gets carried over to the next fread(). If you were
9521 generating a new cert request using 'req' for example then the last
9522 character of the passphrase would be CR which would then enter the first
9526 *) Added the new `Includes OpenSSL Cryptography Software' button as
9527 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9528 button and can be used by applications based on OpenSSL to show the
9529 relationship to the OpenSSL project.
9530 [Ralf S. Engelschall]
9532 *) Remove confusing variables in function signatures in files
9533 ssl/ssl_lib.c and ssl/ssl.h.
9534 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9536 *) Don't install bss_file.c under PREFIX/include/
9537 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9539 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9540 functions that return function pointers and has support for NT specific
9541 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9542 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9543 unsigned to signed types: this was killing the Win32 compile.
9546 *) Add new certificate file to stack functions,
9547 SSL_add_dir_cert_subjects_to_stack() and
9548 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9549 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9550 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9551 This means that Apache-SSL and similar packages don't have to mess around
9552 to add as many CAs as they want to the preferred list.
9555 *) Experiment with doxygen documentation. Currently only partially applied to
9557 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9558 openssl.doxy as the configuration file.
9561 *) Get rid of remaining C++-style comments which strict C compilers hate.
9562 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9564 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9565 compiled in by default: it has problems with large keys.
9568 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9569 DH private keys and/or callback functions which directly correspond to
9570 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9571 is needed for applications which have to configure certificates on a
9572 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9574 For the RSA certificate situation is makes no difference, but
9575 for the DSA certificate situation this fixes the "no shared cipher"
9576 problem where the OpenSSL cipher selection procedure failed because the
9577 temporary keys were not overtaken from the context and the API provided
9578 no way to reconfigure them.
9579 The new functions now let applications reconfigure the stuff and they
9580 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9581 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9582 non-public-API function ssl_cert_instantiate() is used as a helper
9583 function and also to reduce code redundancy inside ssl_rsa.c.
9584 [Ralf S. Engelschall]
9586 *) Move s_server -dcert and -dkey options out of the undocumented feature
9587 area because they are useful for the DSA situation and should be
9588 recognized by the users.
9589 [Ralf S. Engelschall]
9591 *) Fix the cipher decision scheme for export ciphers: the export bits are
9592 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9593 SSL_EXP_MASK. So, the original variable has to be used instead of the
9594 already masked variable.
9595 [Richard Levitte <levitte@stacken.kth.se>]
9597 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9598 [Richard Levitte <levitte@stacken.kth.se>]
9600 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9601 from `int' to `unsigned int' because it's a length and initialized by
9602 EVP_DigestFinal() which expects an `unsigned int *'.
9603 [Richard Levitte <levitte@stacken.kth.se>]
9605 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9606 script. Instead use the usual Shell->Perl transition trick.
9607 [Ralf S. Engelschall]
9609 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9610 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9611 -noout -modulus' as it's already the case for `openssl rsa -noout
9612 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9613 currently the public key is printed (a decision which was already done by
9614 `openssl dsa -modulus' in the past) which serves a similar purpose.
9615 Additionally the NO_RSA no longer completely removes the whole -modulus
9616 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9618 [Ralf S. Engelschall]
9620 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9621 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9622 [Arne Ansper <arne@ats.cyber.ee>]
9624 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9625 to be added. Now both 'req' and 'ca' can use new objects defined in the
9629 *) Add cool BIO that does syslog (or event log on NT).
9630 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9632 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9633 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9634 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9635 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9638 *) Add preliminary config info for new extension code.
9641 *) Make RSA_NO_PADDING really use no padding.
9642 [Ulf Moeller <ulf@fitug.de>]
9644 *) Generate errors when private/public key check is done.
9647 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9648 for some CRL extensions and new objects added.
9651 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9652 key usage extension and fuller support for authority key id.
9655 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9656 padding method for RSA, which is recommended for new applications in PKCS
9657 #1 v2.0 (RFC 2437, October 1998).
9658 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9659 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9660 against Bleichbacher's attack on RSA.
9661 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9664 *) Updates to the new SSL compression code
9665 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9667 *) Fix so that the version number in the master secret, when passed
9668 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9669 (because the server will not accept higher), that the version number
9670 is 0x03,0x01, not 0x03,0x00
9671 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9673 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9674 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9675 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9678 *) Support for RAW extensions where an arbitrary extension can be
9679 created by including its DER encoding. See apps/openssl.cnf for
9683 *) Make sure latest Perl versions don't interpret some generated C array
9684 code as Perl array code in the crypto/err/err_genc.pl script.
9685 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9687 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9688 not many people have the assembler. Various Win32 compilation fixes and
9689 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9693 *) Modify configure script 'Configure' to automatically create crypto/date.h
9694 file under Win32 and also build pem.h from pem.org. New script
9695 util/mkfiles.pl to create the MINFO file on environments that can't do a
9696 'make files': perl util/mkfiles.pl >MINFO should work.
9699 *) Major rework of DES function declarations, in the pursuit of correctness
9700 and purity. As a result, many evil casts evaporated, and some weirdness,
9701 too. You may find this causes warnings in your code. Zapping your evil
9702 casts will probably fix them. Mostly.
9705 *) Fix for a typo in asn1.h. Bug fix to object creation script
9706 obj_dat.pl. It considered a zero in an object definition to mean
9707 "end of object": none of the objects in objects.h have any zeros
9708 so it wasn't spotted.
9709 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9711 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9712 Masking (CBCM). In the absence of test vectors, the best I have been able
9713 to do is check that the decrypt undoes the encrypt, so far. Send me test
9714 vectors if you have them.
9717 *) Correct calculation of key length for export ciphers (too much space was
9718 allocated for null ciphers). This has not been tested!
9721 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9722 message is now correct (it understands "crypto" and "ssl" on its
9723 command line). There is also now an "update" option. This will update
9724 the util/ssleay.num and util/libeay.num files with any new functions.
9726 perl util/mkdef.pl crypto ssl update
9727 it will update them.
9730 *) Overhauled the Perl interface (perl/*):
9731 - ported BN stuff to OpenSSL's different BN library
9732 - made the perl/ source tree CVS-aware
9733 - renamed the package from SSLeay to OpenSSL (the files still contain
9734 their history because I've copied them in the repository)
9735 - removed obsolete files (the test scripts will be replaced
9736 by better Test::Harness variants in the future)
9737 [Ralf S. Engelschall]
9739 *) First cut for a very conservative source tree cleanup:
9740 1. merge various obsolete readme texts into doc/ssleay.txt
9741 where we collect the old documents and readme texts.
9742 2. remove the first part of files where I'm already sure that we no
9743 longer need them because of three reasons: either they are just temporary
9744 files which were left by Eric or they are preserved original files where
9745 I've verified that the diff is also available in the CVS via "cvs diff
9746 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9747 the crypto/md/ stuff).
9748 [Ralf S. Engelschall]
9750 *) More extension code. Incomplete support for subject and issuer alt
9751 name, issuer and authority key id. Change the i2v function parameters
9752 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9753 what that's for :-) Fix to ASN1 macro which messed up
9754 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9757 *) Preliminary support for ENUMERATED type. This is largely copied from the
9761 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9762 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9764 *) Make sure `make rehash' target really finds the `openssl' program.
9765 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9767 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9768 like to hear about it if this slows down other processors.
9771 *) Add CygWin32 platform information to Configure script.
9772 [Alan Batie <batie@aahz.jf.intel.com>]
9774 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9775 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9777 *) New program nseq to manipulate netscape certificate sequences
9780 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9784 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9785 but the BN code had some problems that would cause failures when
9786 doing certificate verification and some other functions.
9787 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9789 *) Add ASN1 and PEM code to support netscape certificate sequences.
9792 *) Add ASN1 and PEM code to support netscape certificate sequences.
9795 *) Add several PKIX and private extended key usage OIDs.
9798 *) Modify the 'ca' program to handle the new extension code. Modify
9799 openssl.cnf for new extension format, add comments.
9802 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9803 and add a sample to openssl.cnf so req -x509 now adds appropriate
9807 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9808 error code, add initial support to X509_print() and x509 application.
9811 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9812 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9813 stuff is currently isolated and isn't even compiled yet.
9816 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9817 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9818 Removed the versions check from X509 routines when loading extensions:
9819 this allows certain broken certificates that don't set the version
9820 properly to be processed.
9823 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9824 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9825 can still be regenerated with "make depend".
9828 *) Spelling mistake in C version of CAST-128.
9829 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9831 *) Changes to the error generation code. The perl script err-code.pl
9832 now reads in the old error codes and retains the old numbers, only
9833 adding new ones if necessary. It also only changes the .err files if new
9834 codes are added. The makefiles have been modified to only insert errors
9835 when needed (to avoid needlessly modifying header files). This is done
9836 by only inserting errors if the .err file is newer than the auto generated
9837 C file. To rebuild all the error codes from scratch (the old behaviour)
9838 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9839 or delete all the .err files.
9842 *) CAST-128 was incorrectly implemented for short keys. The C version has
9843 been fixed, but is untested. The assembler versions are also fixed, but
9844 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9845 to regenerate it if needed.
9846 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9847 Hagino <itojun@kame.net>]
9849 *) File was opened incorrectly in randfile.c.
9850 [Ulf Möller <ulf@fitug.de>]
9852 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9853 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9854 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9855 al: it's just almost always a UTCTime. Note this patch adds new error
9856 codes so do a "make errors" if there are problems.
9859 *) Correct Linux 1 recognition in config.
9860 [Ulf Möller <ulf@fitug.de>]
9862 *) Remove pointless MD5 hash when using DSA keys in ca.
9863 [Anonymous <nobody@replay.com>]
9865 *) Generate an error if given an empty string as a cert directory. Also
9866 generate an error if handed NULL (previously returned 0 to indicate an
9867 error, but didn't set one).
9868 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9870 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9873 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9874 parameters. This was causing a warning which killed off the Win32 compile.
9877 *) Remove C++ style comments from crypto/bn/bn_local.h.
9878 [Neil Costigan <neil.costigan@celocom.com>]
9880 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9881 based on a text string, looking up short and long names and finally
9882 "dot" format. The "dot" format stuff didn't work. Added new function
9883 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9884 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9885 OID is not part of the table.
9888 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9889 X509_LOOKUP_by_alias().
9892 *) Sort openssl functions by name.
9895 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9896 encryption from sample DSA keys (in case anyone is interested the password
9900 *) Make _all_ *_free functions accept a NULL pointer.
9901 [Frans Heymans <fheymans@isaserver.be>]
9903 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9905 [Anonymous <nobody@replay.com>]
9907 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9908 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9910 *) Don't blow it for numeric -newkey arguments to apps/req.
9911 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9913 *) Temp key "for export" tests were wrong in s3_srvr.c.
9914 [Anonymous <nobody@replay.com>]
9916 *) Add prototype for temp key callback functions
9917 SSL_CTX_set_tmp_{rsa,dh}_callback().
9920 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9921 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9924 *) X509_name_add_entry() freed the wrong thing after an error.
9925 [Arne Ansper <arne@ats.cyber.ee>]
9927 *) rsa_eay.c would attempt to free a NULL context.
9928 [Arne Ansper <arne@ats.cyber.ee>]
9930 *) BIO_s_socket() had a broken should_retry() on Windoze.
9931 [Arne Ansper <arne@ats.cyber.ee>]
9933 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9934 [Arne Ansper <arne@ats.cyber.ee>]
9936 *) Make sure the already existing X509_STORE->depth variable is initialized
9937 in X509_STORE_new(), but document the fact that this variable is still
9938 unused in the certificate verification process.
9939 [Ralf S. Engelschall]
9941 *) Fix the various library and apps files to free up pkeys obtained from
9942 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9945 *) Fix reference counting in X509_PUBKEY_get(). This makes
9946 demos/maurice/example2.c work, amongst others, probably.
9947 [Steve Henson and Ben Laurie]
9949 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9950 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9951 are no longer created. This way we have a single and consistent command
9952 line interface `openssl <command>', similar to `cvs <command>'.
9953 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9955 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9956 BIT STRING wrapper always have zero unused bits.
9959 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9962 *) Make the top-level INSTALL documentation easier to understand.
9965 *) Makefiles updated to exit if an error occurs in a sub-directory
9966 make (including if user presses ^C) [Paul Sutton]
9968 *) Make Montgomery context stuff explicit in RSA data structure.
9971 *) Fix build order of pem and err to allow for generated pem.h.
9974 *) Fix renumbering bug in X509_NAME_delete_entry().
9977 *) Enhanced the err-ins.pl script so it makes the error library number
9978 global and can add a library name. This is needed for external ASN1 and
9979 other error libraries.
9982 *) Fixed sk_insert which never worked properly.
9985 *) Fix ASN1 macros so they can handle indefinite length construted
9986 EXPLICIT tags. Some non standard certificates use these: they can now
9990 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9991 into a single doc/ssleay.txt bundle. This way the information is still
9992 preserved but no longer messes up this directory. Now it's new room for
9993 the new set of documenation files.
9994 [Ralf S. Engelschall]
9996 *) SETs were incorrectly DER encoded. This was a major pain, because they
9997 shared code with SEQUENCEs, which aren't coded the same. This means that
9998 almost everything to do with SETs or SEQUENCEs has either changed name or
9999 number of arguments.
10000 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10002 *) Fix test data to work with the above.
10005 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10006 was already fixed by Eric for 0.9.1 it seems.
10007 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10009 *) Autodetect FreeBSD3.
10012 *) Fix various bugs in Configure. This affects the following platforms:
10016 unixware-2.0-pentium
10020 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10021 before they are needed.
10024 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10028 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10030 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10031 changed SSLeay to OpenSSL in version strings.
10032 [Ralf S. Engelschall]
10034 *) Some fixups to the top-level documents.
10037 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10038 because the symlink to include/ was missing.
10039 [Ralf S. Engelschall]
10041 *) Incorporated the popular no-RSA/DSA-only patches
10042 which allow to compile a RSA-free SSLeay.
10043 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10045 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10046 when "ssleay" is still not found.
10047 [Ralf S. Engelschall]
10049 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10050 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10052 *) Updated the README file.
10053 [Ralf S. Engelschall]
10055 *) Added various .cvsignore files in the CVS repository subdirs
10056 to make a "cvs update" really silent.
10057 [Ralf S. Engelschall]
10059 *) Recompiled the error-definition header files and added
10060 missing symbols to the Win32 linker tables.
10061 [Ralf S. Engelschall]
10063 *) Cleaned up the top-level documents;
10064 o new files: CHANGES and LICENSE
10065 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10066 o merged COPYRIGHT into LICENSE
10067 o removed obsolete TODO file
10068 o renamed MICROSOFT to INSTALL.W32
10069 [Ralf S. Engelschall]
10071 *) Removed dummy files from the 0.9.1b source tree:
10072 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10073 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10074 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10075 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10076 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10077 [Ralf S. Engelschall]
10079 *) Added various platform portability fixes.
10082 *) The Genesis of the OpenSSL rpject:
10083 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10084 Young and Tim J. Hudson created while they were working for C2Net until
10086 [The OpenSSL Project]
10089 Changes between 0.9.0b and 0.9.1b [not released]
10091 *) Updated a few CA certificates under certs/
10094 *) Changed some BIGNUM api stuff.
10097 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10098 DGUX x86, Linux Alpha, etc.
10101 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10102 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10106 *) Add -strparse option to asn1pars program which parses nested
10108 [Dr Stephen Henson <shenson@bigfoot.com>]
10110 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10113 *) DSA fix for "ca" program.
10116 *) Added "-genkey" option to "dsaparam" program.
10119 *) Added RIPE MD160 (rmd160) message digest.
10122 *) Added -a (all) option to "ssleay version" command.
10125 *) Added PLATFORM define which is the id given to Configure.
10128 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10131 *) Extended the ASN.1 parser routines.
10134 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10137 *) Added a BN_CTX to the BN library.
10140 *) Fixed the weak key values in DES library
10143 *) Changed API in EVP library for cipher aliases.
10146 *) Added support for RC2/64bit cipher.
10149 *) Converted the lhash library to the crypto/mem.c functions.
10152 *) Added more recognized ASN.1 object ids.
10155 *) Added more RSA padding checks for SSL/TLS.
10158 *) Added BIO proxy/filter functionality.
10161 *) Added extra_certs to SSL_CTX which can be used
10162 send extra CA certificates to the client in the CA cert chain sending
10163 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10166 *) Now Fortezza is denied in the authentication phase because
10167 this is key exchange mechanism is not supported by SSLeay at all.
10170 *) Additional PKCS1 checks.
10173 *) Support the string "TLSv1" for all TLS v1 ciphers.
10176 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10177 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10180 *) Fixed a few memory leaks.
10183 *) Fixed various code and comment typos.
10186 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10187 bytes sent in the client random.
10188 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob