5 Changes between 1.0.1 and 1.0.2 [xx XXX xxxx]
7 *) Transparently support X9.42 DH parameters when calling
8 PEM_read_bio_DHparameters. This means existing applications can handle
9 the new parameter format automatically.
12 *) Initial experimental support for X9.42 DH parameter format: mainly
13 to support use of 'q' parameter for RFC5114 parameters.
16 *) Add DH parameters from RFC5114 including test data to dhtest.
19 *) Support for automatic EC temporary key parameter selection. If enabled
20 the most preferred EC parameters are automatically used instead of
21 hardcoded fixed parameters. Now a server just has to call:
22 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
23 support ECDH and use the most appropriate parameters.
26 *) Enhance and tidy EC curve and point format TLS extension code. Use
27 static structures instead of allocation if default values are used.
28 New ctrls to set curves we wish to support and to retrieve shared curves.
29 Print out shared curves in s_server. New options to s_server and s_client
30 to set list of supported curves.
33 *) New ctrls to retrieve supported signature algorithms and
34 supported curve values as an array of NIDs. Extend openssl utility
35 to print out received values.
38 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
39 between NIDs and the more common NIST names such as "P-256". Enhance
40 ecparam utility and ECC method to recognise the NIST names for curves.
43 *) Enhance SSL/TLS certificate chain handling to support different
44 chains for each certificate instead of one chain in the parent SSL_CTX.
47 *) Support for fixed DH ciphersuite client authentication: where both
48 server and client use DH certificates with common parameters.
51 *) Support for fixed DH ciphersuites: those requiring DH server
55 Changes between 1.0.1c and 1.0.1d [xx XXX xxxx]
57 *) Don't use TLS 1.0 record version number in initial client hello
61 Changes between 1.0.1b and 1.0.1c [10 May 2012]
63 *) Sanity check record length before skipping explicit IV in TLS
64 1.2, 1.1 and DTLS to avoid DoS attack.
66 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
67 fuzzing as a service testing platform.
71 *) Initialise tkeylen properly when encrypting CMS messages.
72 Thanks to Solar Designer of Openwall for reporting this issue.
75 *) In FIPS mode don't try to use composite ciphers as they are not
79 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
81 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
82 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
83 mean any application compiled against OpenSSL 1.0.0 headers setting
84 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
85 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
86 0x10000000L Any application which was previously compiled against
87 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
88 will need to be recompiled as a result. Letting be results in
89 inability to disable specifically TLS 1.1 and in client context,
90 in unlike event, limit maximum offered version to TLS 1.0 [see below].
93 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
94 disable just protocol X, but all protocols above X *if* there are
95 protocols *below* X still enabled. In more practical terms it means
96 that if application wants to disable TLS1.0 in favor of TLS1.1 and
97 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
98 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
102 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
104 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
105 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
106 in CRYPTO_realloc_clean.
108 Thanks to Tavis Ormandy, Google Security Team, for discovering this
109 issue and to Adam Langley <agl@chromium.org> for fixing it.
111 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
113 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
116 *) Workarounds for some broken servers that "hang" if a client hello
117 record length exceeds 255 bytes:
119 1. Do not use record version number > TLS 1.0 in initial client
120 hello: some (but not all) hanging servers will now work.
121 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
122 the number of ciphers sent in the client hello. This should be
123 set to an even number, such as 50, for example by passing:
124 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
125 Most broken servers should now work.
126 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
127 TLS 1.2 client support entirely.
130 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
133 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
135 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
136 STRING form instead of a DigestInfo.
139 *) The format used for MDC2 RSA signatures is inconsistent between EVP
140 and the RSA_sign/RSA_verify functions. This was made more apparent when
141 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
142 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
143 the correct format in RSA_verify so both forms transparently work.
146 *) Some servers which support TLS 1.0 can choke if we initially indicate
147 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
148 encrypted premaster secret. As a workaround use the maximum pemitted
149 client version in client hello, this should keep such servers happy
150 and still work with previous versions of OpenSSL.
153 *) Add support for TLS/DTLS heartbeats.
154 [Robin Seggelmann <seggelmann@fh-muenster.de>]
156 *) Add support for SCTP.
157 [Robin Seggelmann <seggelmann@fh-muenster.de>]
159 *) Improved PRNG seeding for VOS.
160 [Paul Green <Paul.Green@stratus.com>]
162 *) Extensive assembler packs updates, most notably:
164 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
165 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
166 - x86_64: bit-sliced AES implementation;
167 - ARM: NEON support, contemporary platforms optimizations;
168 - s390x: z196 support;
169 - *: GHASH and GF(2^m) multiplication implementations;
173 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
174 (removal of unnecessary code)
175 [Peter Sylvester <peter.sylvester@edelweb.fr>]
177 *) Add TLS key material exporter from RFC 5705.
180 *) Add DTLS-SRTP negotiation from RFC 5764.
183 *) Add Next Protocol Negotiation,
184 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
185 disabled with a no-npn flag to config or Configure. Code donated
187 [Adam Langley <agl@google.com> and Ben Laurie]
189 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
190 NIST-P256, NIST-P521, with constant-time single point multiplication on
191 typical inputs. Compiler support for the nonstandard type __uint128_t is
192 required to use this (present in gcc 4.4 and later, for 64-bit builds).
193 Code made available under Apache License version 2.0.
195 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
196 line to include this in your build of OpenSSL, and run "make depend" (or
197 "make update"). This enables the following EC_METHODs:
199 EC_GFp_nistp224_method()
200 EC_GFp_nistp256_method()
201 EC_GFp_nistp521_method()
203 EC_GROUP_new_by_curve_name() will automatically use these (while
204 EC_GROUP_new_curve_GFp() currently prefers the more flexible
206 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
208 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
209 all platforms. Move ssize_t definition from e_os.h to the public
210 header file e_os2.h as it now appears in public header file cms.h
213 *) New -sigopt option to the ca, req and x509 utilities. Additional
214 signature parameters can be passed using this option and in
218 *) Add RSA PSS signing function. This will generate and set the
219 appropriate AlgorithmIdentifiers for PSS based on those in the
220 corresponding EVP_MD_CTX structure. No application support yet.
223 *) Support for companion algorithm specific ASN1 signing routines.
224 New function ASN1_item_sign_ctx() signs a pre-initialised
225 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
226 the appropriate parameters.
229 *) Add new algorithm specific ASN1 verification initialisation function
230 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
231 handling will be the same no matter what EVP_PKEY_METHOD is used.
232 Add a PSS handler to support verification of PSS signatures: checked
233 against a number of sample certificates.
236 *) Add signature printing for PSS. Add PSS OIDs.
237 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
239 *) Add algorithm specific signature printing. An individual ASN1 method
240 can now print out signatures instead of the standard hex dump.
242 More complex signatures (e.g. PSS) can print out more meaningful
243 information. Include DSA version that prints out the signature
247 *) Password based recipient info support for CMS library: implementing
251 *) Split password based encryption into PBES2 and PBKDF2 functions. This
252 neatly separates the code into cipher and PBE sections and is required
253 for some algorithms that split PBES2 into separate pieces (such as
257 *) Session-handling fixes:
258 - Fix handling of connections that are resuming with a session ID,
259 but also support Session Tickets.
260 - Fix a bug that suppressed issuing of a new ticket if the client
261 presented a ticket with an expired session.
262 - Try to set the ticket lifetime hint to something reasonable.
263 - Make tickets shorter by excluding irrelevant information.
264 - On the client side, don't ignore renewed tickets.
265 [Adam Langley, Bodo Moeller (Google)]
267 *) Fix PSK session representation.
270 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
272 This work was sponsored by Intel.
275 *) Add GCM support to TLS library. Some custom code is needed to split
276 the IV between the fixed (from PRF) and explicit (from TLS record)
277 portions. This adds all GCM ciphersuites supported by RFC5288 and
278 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
279 add a special AESGCM string for GCM only.
282 *) Expand range of ctrls for AES GCM. Permit setting invocation
283 field on decrypt and retrieval of invocation field only on encrypt.
286 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
287 As required by RFC5289 these ciphersuites cannot be used if for
288 versions of TLS earlier than 1.2.
291 *) For FIPS capable OpenSSL interpret a NULL default public key method
292 as unset and return the appopriate default but do *not* set the default.
293 This means we can return the appopriate method in applications that
294 swicth between FIPS and non-FIPS modes.
297 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
298 ENGINE is used then we cannot handle that in the FIPS module so we
299 keep original code iff non-FIPS operations are allowed.
302 *) Add -attime option to openssl utilities.
303 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
305 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
308 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
309 FIPS EC methods unconditionally for now.
312 *) New build option no-ec2m to disable characteristic 2 code.
315 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
316 all cases can be covered as some introduce binary incompatibilities.
319 *) Redirect RSA operations to FIPS module including keygen,
320 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
323 *) Add similar low level API blocking to ciphers.
326 *) Low level digest APIs are not approved in FIPS mode: any attempt
327 to use these will cause a fatal error. Applications that *really* want
328 to use them can use the private_* version instead.
331 *) Redirect cipher operations to FIPS module for FIPS builds.
334 *) Redirect digest operations to FIPS module for FIPS builds.
337 *) Update build system to add "fips" flag which will link in fipscanister.o
338 for static and shared library builds embedding a signature if needed.
341 *) Output TLS supported curves in preference order instead of numerical
342 order. This is currently hardcoded for the highest order curves first.
343 This should be configurable so applications can judge speed vs strength.
346 *) Add TLS v1.2 server support for client authentication.
349 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
353 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
354 FIPS modules versions.
357 *) Add TLS v1.2 client side support for client authentication. Keep cache
358 of handshake records longer as we don't know the hash algorithm to use
359 until after the certificate request message is received.
362 *) Initial TLS v1.2 client support. Add a default signature algorithms
363 extension including all the algorithms we support. Parse new signature
364 format in client key exchange. Relax some ECC signing restrictions for
365 TLS v1.2 as indicated in RFC5246.
368 *) Add server support for TLS v1.2 signature algorithms extension. Switch
369 to new signature format when needed using client digest preference.
370 All server ciphersuites should now work correctly in TLS v1.2. No client
371 support yet and no support for client certificates.
374 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
375 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
376 ciphersuites. At present only RSA key exchange ciphersuites work with
377 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
378 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
379 and version checking.
382 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
383 with this defined it will not be affected by any changes to ssl internal
384 structures. Add several utility functions to allow openssl application
385 to work with OPENSSL_NO_SSL_INTERN defined.
389 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
391 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
394 *) Permit abbreviated handshakes when renegotiating using the function
395 SSL_renegotiate_abbreviated().
396 [Robin Seggelmann <seggelmann@fh-muenster.de>]
398 *) Add call to ENGINE_register_all_complete() to
399 ENGINE_load_builtin_engines(), so some implementations get used
400 automatically instead of needing explicit application support.
403 *) Add support for TLS key exporter as described in RFC5705.
404 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
406 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
407 a few changes are required:
409 Add SSL_OP_NO_TLSv1_1 flag.
411 Update version checking logic to handle version 1.1.
412 Add explicit IV handling (ported from DTLS code).
413 Add command line options to s_client/s_server.
416 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
418 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
419 in CMS and PKCS7 code. When RSA decryption fails use a random key for
420 content decryption and always return the same error. Note: this attack
421 needs on average 2^20 messages so it only affects automated senders. The
422 old behaviour can be reenabled in the CMS code by setting the
423 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
424 an MMA defence is not necessary.
425 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
426 this issue. (CVE-2012-0884)
429 *) Fix CVE-2011-4619: make sure we really are receiving a
430 client hello before rejecting multiple SGC restarts. Thanks to
431 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
434 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
436 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
437 Thanks to Antonio Martin, Enterprise Secure Access Research and
438 Development, Cisco Systems, Inc. for discovering this bug and
439 preparing a fix. (CVE-2012-0050)
442 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
444 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
445 of the Vaudenay padding oracle attack on CBC mode encryption
446 which enables an efficient plaintext recovery attack against
447 the OpenSSL implementation of DTLS. Their attack exploits timing
448 differences arising during decryption processing. A research
449 paper describing this attack can be found at:
450 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
451 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
452 Security Group at Royal Holloway, University of London
453 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
454 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
455 for preparing the fix. (CVE-2011-4108)
456 [Robin Seggelmann, Michael Tuexen]
458 *) Clear bytes used for block padding of SSL 3.0 records.
460 [Adam Langley (Google)]
462 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
463 Kadianakis <desnacked@gmail.com> for discovering this issue and
464 Adam Langley for preparing the fix. (CVE-2011-4619)
465 [Adam Langley (Google)]
467 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
468 [Andrey Kulikov <amdeich@gmail.com>]
470 *) Prevent malformed RFC3779 data triggering an assertion failure.
471 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
472 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
473 [Rob Austein <sra@hactrn.net>]
475 *) Improved PRNG seeding for VOS.
476 [Paul Green <Paul.Green@stratus.com>]
478 *) Fix ssl_ciph.c set-up race.
479 [Adam Langley (Google)]
481 *) Fix spurious failures in ecdsatest.c.
482 [Emilia Käsper (Google)]
484 *) Fix the BIO_f_buffer() implementation (which was mixing different
485 interpretations of the '..._len' fields).
486 [Adam Langley (Google)]
488 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
489 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
490 threads won't reuse the same blinding coefficients.
492 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
493 lock to call BN_BLINDING_invert_ex, and avoids one use of
494 BN_BLINDING_update for each BN_BLINDING structure (previously,
495 the last update always remained unused).
496 [Emilia Käsper (Google)]
498 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
499 [Bob Buckholz (Google)]
501 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
503 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
504 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
505 [Kaspar Brand <ossl@velox.ch>]
507 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
508 for multi-threaded use of ECDH. (CVE-2011-3210)
509 [Adam Langley (Google)]
511 *) Fix x509_name_ex_d2i memory leak on bad inputs.
514 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
515 signature public key algorithm by using OID xref utilities instead.
516 Before this you could only use some ECC ciphersuites with SHA1 only.
519 *) Add protection against ECDSA timing attacks as mentioned in the paper
520 by Billy Bob Brumley and Nicola Tuveri, see:
522 http://eprint.iacr.org/2011/232.pdf
524 [Billy Bob Brumley and Nicola Tuveri]
526 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
528 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
529 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
531 *) Fix bug in string printing code: if *any* escaping is enabled we must
532 escape the escape character (backslash) or the resulting string is
536 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
538 *) Disable code workaround for ancient and obsolete Netscape browsers
539 and servers: an attacker can use it in a ciphersuite downgrade attack.
540 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
543 *) Fixed J-PAKE implementation error, originally discovered by
544 Sebastien Martini, further info and confirmation from Stefan
545 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
548 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
550 *) Fix extension code to avoid race conditions which can result in a buffer
551 overrun vulnerability: resumed sessions must not be modified as they can
552 be shared by multiple threads. CVE-2010-3864
555 *) Fix WIN32 build system to correctly link an ENGINE directory into
559 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
561 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
563 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
565 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
567 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
568 context. The operation can be customised via the ctrl mechanism in
569 case ENGINEs want to include additional functionality.
572 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
575 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
576 output hashes compatible with older versions of OpenSSL.
577 [Willy Weisz <weisz@vcpc.univie.ac.at>]
579 *) Fix compression algorithm handling: if resuming a session use the
580 compression algorithm of the resumed session instead of determining
581 it from client hello again. Don't allow server to change algorithm.
584 *) Add load_crls() function to apps tidying load_certs() too. Add option
585 to verify utility to allow additional CRLs to be included.
588 *) Update OCSP request code to permit adding custom headers to the request:
589 some responders need this.
592 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
594 [Julia Lawall <julia@diku.dk>]
596 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
597 needlessly dereferenced structures, used obsolete functions and
598 didn't handle all updated verify codes correctly.
601 *) Disable MD2 in the default configuration.
604 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
605 indicate the initial BIO being pushed or popped. This makes it possible
606 to determine whether the BIO is the one explicitly called or as a result
607 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
608 it handles reference counts correctly and doesn't zero out the I/O bio
609 when it is not being explicitly popped. WARNING: applications which
610 included workarounds for the old buggy behaviour will need to be modified
611 or they could free up already freed BIOs.
614 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
615 renaming to all platforms (within the 0.9.8 branch, this was
616 done conditionally on Netware platforms to avoid a name clash).
617 [Guenter <lists@gknw.net>]
619 *) Add ECDHE and PSK support to DTLS.
620 [Michael Tuexen <tuexen@fh-muenster.de>]
622 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
626 *) Add "missing" function EVP_MD_flags() (without this the only way to
627 retrieve a digest flags is by accessing the structure directly. Update
628 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
629 or cipher is registered as in the "from" argument. Print out all
630 registered digests in the dgst usage message instead of manually
631 attempting to work them out.
634 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
635 this allows the use of compression and extensions. Change default cipher
636 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
637 by default unless an application cipher string requests it.
640 *) Alter match criteria in PKCS12_parse(). It used to try to use local
641 key ids to find matching certificates and keys but some PKCS#12 files
642 don't follow the (somewhat unwritten) rules and this strategy fails.
643 Now just gather all certificates together and the first private key
644 then look for the first certificate that matches the key.
647 *) Support use of registered digest and cipher names for dgst and cipher
648 commands instead of having to add each one as a special case. So now
655 openssl dgst -sha256 foo
657 and this works for ENGINE based algorithms too.
661 *) Update Gost ENGINE to support parameter files.
662 [Victor B. Wagner <vitus@cryptocom.ru>]
664 *) Support GeneralizedTime in ca utility.
665 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
667 *) Enhance the hash format used for certificate directory links. The new
668 form uses the canonical encoding (meaning equivalent names will work
669 even if they aren't identical) and uses SHA1 instead of MD5. This form
670 is incompatible with the older format and as a result c_rehash should
671 be used to rebuild symbolic links.
674 *) Make PKCS#8 the default write format for private keys, replacing the
675 traditional format. This form is standardised, more secure and doesn't
676 include an implicit MD5 dependency.
679 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
680 committed to OpenSSL should pass this lot as a minimum.
683 *) Add session ticket override functionality for use by EAP-FAST.
684 [Jouni Malinen <j@w1.fi>]
686 *) Modify HMAC functions to return a value. Since these can be implemented
687 in an ENGINE errors can occur.
690 *) Type-checked OBJ_bsearch_ex.
693 *) Type-checked OBJ_bsearch. Also some constification necessitated
694 by type-checking. Still to come: TXT_DB, bsearch(?),
695 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
699 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
700 seconds to a tm structure directly, instead of going through OS
701 specific date routines. This avoids any issues with OS routines such
702 as the year 2038 bug. New *_adj() functions for ASN1 time structures
703 and X509_time_adj_ex() to cover the extended range. The existing
704 X509_time_adj() is still usable and will no longer have any date issues.
707 *) Delta CRL support. New use deltas option which will attempt to locate
708 and search any appropriate delta CRLs available.
710 This work was sponsored by Google.
713 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
714 code and add additional score elements. Validate alternate CRL paths
715 as part of the CRL checking and indicate a new error "CRL path validation
716 error" in this case. Applications wanting additional details can use
717 the verify callback and check the new "parent" field. If this is not
718 NULL CRL path validation is taking place. Existing applications wont
719 see this because it requires extended CRL support which is off by
722 This work was sponsored by Google.
725 *) Support for freshest CRL extension.
727 This work was sponsored by Google.
730 *) Initial indirect CRL support. Currently only supported in the CRLs
731 passed directly and not via lookup. Process certificate issuer
732 CRL entry extension and lookup CRL entries by bother issuer name
733 and serial number. Check and process CRL issuer entry in IDP extension.
735 This work was sponsored by Google.
738 *) Add support for distinct certificate and CRL paths. The CRL issuer
739 certificate is validated separately in this case. Only enabled if
740 an extended CRL support flag is set: this flag will enable additional
741 CRL functionality in future.
743 This work was sponsored by Google.
746 *) Add support for policy mappings extension.
748 This work was sponsored by Google.
751 *) Fixes to pathlength constraint, self issued certificate handling,
752 policy processing to align with RFC3280 and PKITS tests.
754 This work was sponsored by Google.
757 *) Support for name constraints certificate extension. DN, email, DNS
758 and URI types are currently supported.
760 This work was sponsored by Google.
763 *) To cater for systems that provide a pointer-based thread ID rather
764 than numeric, deprecate the current numeric thread ID mechanism and
765 replace it with a structure and associated callback type. This
766 mechanism allows a numeric "hash" to be extracted from a thread ID in
767 either case, and on platforms where pointers are larger than 'long',
768 mixing is done to help ensure the numeric 'hash' is usable even if it
769 can't be guaranteed unique. The default mechanism is to use "&errno"
770 as a pointer-based thread ID to distinguish between threads.
772 Applications that want to provide their own thread IDs should now use
773 CRYPTO_THREADID_set_callback() to register a callback that will call
774 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
776 Note that ERR_remove_state() is now deprecated, because it is tied
777 to the assumption that thread IDs are numeric. ERR_remove_state(0)
778 to free the current thread's error state should be replaced by
779 ERR_remove_thread_state(NULL).
781 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
782 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
783 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
784 application was previously providing a numeric thread callback that
785 was inappropriate for distinguishing threads, then uniqueness might
786 have been obtained with &errno that happened immediately in the
787 intermediate development versions of OpenSSL; this is no longer the
788 case, the numeric thread callback will now override the automatic use
790 [Geoff Thorpe, with help from Bodo Moeller]
792 *) Initial support for different CRL issuing certificates. This covers a
793 simple case where the self issued certificates in the chain exist and
794 the real CRL issuer is higher in the existing chain.
796 This work was sponsored by Google.
799 *) Removed effectively defunct crypto/store from the build.
802 *) Revamp of STACK to provide stronger type-checking. Still to come:
803 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
804 ASN1_STRING, CONF_VALUE.
807 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
808 RAM on SSL connections. This option can save about 34k per idle SSL.
811 *) Revamp of LHASH to provide stronger type-checking. Still to come:
812 STACK, TXT_DB, bsearch, qsort.
815 *) Initial support for Cryptographic Message Syntax (aka CMS) based
816 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
817 support for data, signedData, compressedData, digestedData and
818 encryptedData, envelopedData types included. Scripts to check against
819 RFC4134 examples draft and interop and consistency checks of many
820 content types and variants.
823 *) Add options to enc utility to support use of zlib compression BIO.
826 *) Extend mk1mf to support importing of options and assembly language
827 files from Configure script, currently only included in VC-WIN32.
828 The assembly language rules can now optionally generate the source
829 files from the associated perl scripts.
832 *) Implement remaining functionality needed to support GOST ciphersuites.
833 Interop testing has been performed using CryptoPro implementations.
834 [Victor B. Wagner <vitus@cryptocom.ru>]
836 *) s390x assembler pack.
839 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
843 *) Implement Opaque PRF Input TLS extension as specified in
844 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
845 official specification yet and no extension type assignment by
846 IANA exists, this extension (for now) will have to be explicitly
847 enabled when building OpenSSL by providing the extension number
848 to use. For example, specify an option
850 -DTLSEXT_TYPE_opaque_prf_input=0x9527
852 to the "config" or "Configure" script to enable the extension,
853 assuming extension number 0x9527 (which is a completely arbitrary
854 and unofficial assignment based on the MD5 hash of the Internet
855 Draft). Note that by doing so, you potentially lose
856 interoperability with other TLS implementations since these might
857 be using the same extension number for other purposes.
859 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
860 opaque PRF input value to use in the handshake. This will create
861 an interal copy of the length-'len' string at 'src', and will
862 return non-zero for success.
864 To get more control and flexibility, provide a callback function
867 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
868 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
872 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
875 Callback function 'cb' will be called in handshakes, and is
876 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
877 Argument 'arg' is for application purposes (the value as given to
878 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
879 be provided to the callback function). The callback function
880 has to return non-zero to report success: usually 1 to use opaque
881 PRF input just if possible, or 2 to enforce use of the opaque PRF
882 input. In the latter case, the library will abort the handshake
883 if opaque PRF input is not successfully negotiated.
885 Arguments 'peerinput' and 'len' given to the callback function
886 will always be NULL and 0 in the case of a client. A server will
887 see the client's opaque PRF input through these variables if
888 available (NULL and 0 otherwise). Note that if the server
889 provides an opaque PRF input, the length must be the same as the
890 length of the client's opaque PRF input.
892 Note that the callback function will only be called when creating
893 a new session (session resumption can resume whatever was
894 previously negotiated), and will not be called in SSL 2.0
895 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
896 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
897 for applications that need to enforce opaque PRF input.
901 *) Update ssl code to support digests other than SHA1+MD5 for handshake
904 [Victor B. Wagner <vitus@cryptocom.ru>]
906 *) Add RFC4507 support to OpenSSL. This includes the corrections in
907 RFC4507bis. The encrypted ticket format is an encrypted encoded
908 SSL_SESSION structure, that way new session features are automatically
911 If a client application caches session in an SSL_SESSION structure
912 support is transparent because tickets are now stored in the encoded
915 The SSL_CTX structure automatically generates keys for ticket
916 protection in servers so again support should be possible
917 with no application modification.
919 If a client or server wishes to disable RFC4507 support then the option
920 SSL_OP_NO_TICKET can be set.
922 Add a TLS extension debugging callback to allow the contents of any client
923 or server extensions to be examined.
925 This work was sponsored by Google.
928 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
929 OpenSSL should now compile cleanly on gcc 4.2
930 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
932 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
933 support including streaming MAC support: this is required for GOST
935 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
937 *) Add option -stream to use PKCS#7 streaming in smime utility. New
938 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
939 to output in BER and PEM format.
942 *) Experimental support for use of HMAC via EVP_PKEY interface. This
943 allows HMAC to be handled via the EVP_DigestSign*() interface. The
944 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
945 ENGINE support for HMAC keys which are unextractable. New -mac and
946 -macopt options to dgst utility.
949 *) New option -sigopt to dgst utility. Update dgst to use
950 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
951 alternative signing paramaters such as X9.31 or PSS in the dgst
955 *) Change ssl_cipher_apply_rule(), the internal function that does
956 the work each time a ciphersuite string requests enabling
957 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
958 removing ("!foo+bar") a class of ciphersuites: Now it maintains
959 the order of disabled ciphersuites such that those ciphersuites
960 that most recently went from enabled to disabled not only stay
961 in order with respect to each other, but also have higher priority
962 than other disabled ciphersuites the next time ciphersuites are
965 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
966 the same ciphersuites as with "HIGH" alone, but in a specific
967 order where the PSK ciphersuites come first (since they are the
968 most recently disabled ciphersuites when "HIGH" is parsed).
970 Also, change ssl_create_cipher_list() (using this new
971 funcionality) such that between otherwise identical
972 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
976 *) Change ssl_create_cipher_list() so that it automatically
977 arranges the ciphersuites in reasonable order before starting
978 to process the rule string. Thus, the definition for "DEFAULT"
979 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
980 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
981 This makes it much easier to arrive at a reasonable default order
982 in applications for which anonymous ciphers are OK (meaning
983 that you can't actually use DEFAULT).
984 [Bodo Moeller; suggested by Victor Duchovni]
986 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
987 processing) into multiple integers instead of setting
988 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
989 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
990 (These masks as well as the individual bit definitions are hidden
991 away into the non-exported interface ssl/ssl_locl.h, so this
992 change to the definition of the SSL_CIPHER structure shouldn't
993 affect applications.) This give us more bits for each of these
994 categories, so there is no longer a need to coagulate AES128 and
995 AES256 into a single algorithm bit, and to coagulate Camellia128
996 and Camellia256 into a single algorithm bit, which has led to all
999 Thus, among other things, the kludge introduced in 0.9.7m and
1000 0.9.8e for masking out AES256 independently of AES128 or masking
1001 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1003 With the change, we also introduce new ciphersuite aliases that
1004 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1008 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1009 Use the leftmost N bytes of the signature input if the input is
1010 larger than the prime q (with N being the size in bytes of q).
1013 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1014 it yet and it is largely untested.
1017 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1020 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1021 some compilers (gcc 4.2 and later) reject their use. Safestack is
1022 reimplemented. Update ASN1 to avoid use of legacy functions.
1025 *) Win32/64 targets are linked with Winsock2.
1028 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1029 to external functions. This can be used to increase CRL handling
1030 efficiency especially when CRLs are very large by (for example) storing
1031 the CRL revoked certificates in a database.
1034 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1035 new CRLs added to a directory can be used. New command line option
1036 -verify_return_error to s_client and s_server. This causes real errors
1037 to be returned by the verify callback instead of carrying on no matter
1038 what. This reflects the way a "real world" verify callback would behave.
1041 *) GOST engine, supporting several GOST algorithms and public key formats.
1042 Kindly donated by Cryptocom.
1045 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1046 partitioned by DP are handled but no indirect CRL or reason partitioning
1047 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1048 selected via a scoring technique which handles IDP and AKID in CRLs.
1051 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1052 will ultimately be used for all verify operations: this will remove the
1053 X509_STORE dependency on certificate verification and allow alternative
1054 lookup methods. X509_STORE based implementations of these two callbacks.
1057 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1058 Modify get_crl() to find a valid (unexpired) CRL if possible.
1061 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1062 this would be called X509_CRL_cmp() but that name is already used by
1063 a function that just compares CRL issuer names. Cache several CRL
1064 extensions in X509_CRL structure and cache CRLDP in X509.
1067 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1068 this maps equivalent X509_NAME structures into a consistent structure.
1069 Name comparison can then be performed rapidly using memcmp().
1072 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1076 *) Allow digests to supply their own micalg string for S/MIME type using
1077 the ctrl EVP_MD_CTRL_MICALG.
1080 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1081 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1082 ctrl. It can then customise the structure before and/or after signing
1086 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1087 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1088 to free up any added signature OIDs.
1091 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1092 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1093 digest and cipher tables. New options added to openssl utility:
1094 list-message-digest-algorithms and list-cipher-algorithms.
1097 *) Change the array representation of binary polynomials: the list
1098 of degrees of non-zero coefficients is now terminated with -1.
1099 Previously it was terminated with 0, which was also part of the
1100 value; thus, the array representation was not applicable to
1101 polynomials where t^0 has coefficient zero. This change makes
1102 the array representation useful in a more general context.
1105 *) Various modifications and fixes to SSL/TLS cipher string
1106 handling. For ECC, the code now distinguishes between fixed ECDH
1107 with RSA certificates on the one hand and with ECDSA certificates
1108 on the other hand, since these are separate ciphersuites. The
1109 unused code for Fortezza ciphersuites has been removed.
1111 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1112 (not "ECDHE"). For consistency with the code for DH
1113 certificates, use of ECDH certificates is now considered ECDH
1114 authentication, not RSA or ECDSA authentication (the latter is
1115 merely the CA's signing algorithm and not actively used in the
1118 The temporary ciphersuite alias "ECCdraft" is no longer
1119 available, and ECC ciphersuites are no longer excluded from "ALL"
1120 and "DEFAULT". The following aliases now exist for RFC 4492
1121 ciphersuites, most of these by analogy with the DH case:
1123 kECDHr - ECDH cert, signed with RSA
1124 kECDHe - ECDH cert, signed with ECDSA
1125 kECDH - ECDH cert (signed with either RSA or ECDSA)
1126 kEECDH - ephemeral ECDH
1127 ECDH - ECDH cert or ephemeral ECDH
1133 AECDH - anonymous ECDH
1134 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1138 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1139 Use correct micalg parameters depending on digest(s) in signed message.
1142 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1143 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1146 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1147 an engine to register a method. Add ENGINE lookups for methods and
1148 functional reference processing.
1151 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1152 EVP_{Sign,Verify}* which allow an application to customise the signature
1156 *) New -resign option to smime utility. This adds one or more signers
1157 to an existing PKCS#7 signedData structure. Also -md option to use an
1158 alternative message digest algorithm for signing.
1161 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1162 create PKCS7 structures containing multiple signers. Update smime
1163 application to support multiple signers.
1166 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1170 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1171 Reorganize PBE internals to lookup from a static table using NIDs,
1172 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1173 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1174 PRF which will be automatically used with PBES2.
1177 *) Replace the algorithm specific calls to generate keys in "req" with the
1181 *) Update PKCS#7 enveloped data routines to use new API. This is now
1182 supported by any public key method supporting the encrypt operation. A
1183 ctrl is added to allow the public key algorithm to examine or modify
1184 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1188 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1189 a default digest type to use. In most cases this will be SHA1 but some
1190 algorithms (such as GOST) need to specify an alternative digest. The
1191 return value indicates how strong the prefernce is 1 means optional and
1192 2 is mandatory (that is it is the only supported type). Modify
1193 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1194 use the default md. Update openssl utilities to use the default digest
1195 type for signing if it is not explicitly indicated.
1198 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1199 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1200 signing method from the key type. This effectively removes the link
1201 between digests and public key types.
1204 *) Add an OID cross reference table and utility functions. Its purpose is to
1205 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1206 rsaEncryption. This will allow some of the algorithm specific hackery
1207 needed to use the correct OID to be removed.
1210 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1211 structures for PKCS7_sign(). They are now set up by the relevant public
1215 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1218 *) Add support for key derivation (agreement) in the API, DH method and
1222 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1223 public and private key formats. As a side effect these add additional
1224 command line functionality not previously available: DSA signatures can be
1225 generated and verified using pkeyutl and DH key support and generation in
1230 [Oliver Tappe <zooey@hirschkaefer.de>]
1232 *) New make target "install_html_docs" installs HTML renditions of the
1234 [Oliver Tappe <zooey@hirschkaefer.de>]
1236 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1237 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1238 support key and parameter generation and add initial key generation
1239 functionality for RSA.
1242 *) Add functions for main EVP_PKEY_method operations. The undocumented
1243 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1244 EVP_PKEY_{encrypt,decrypt}_old.
1247 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1248 key API, doesn't do much yet.
1251 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1252 public key algorithms. New option to openssl utility:
1253 "list-public-key-algorithms" to print out info.
1256 *) Implement the Supported Elliptic Curves Extension for
1257 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1260 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1261 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1264 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1265 utilities such as rsa, dsa, dsaparam etc except they process any key
1269 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1270 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1271 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1275 *) Initial support for pluggable public key ASN1.
1276 De-spaghettify the public key ASN1 handling. Move public and private
1277 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1278 algorithm specific handling to a single module within the relevant
1279 algorithm directory. Add functions to allow (near) opaque processing
1280 of public and private key structures.
1283 *) Implement the Supported Point Formats Extension for
1284 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1287 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1288 for the psk identity [hint] and the psk callback functions to the
1289 SSL_SESSION, SSL and SSL_CTX structure.
1292 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1296 SSL_CTX_use_psk_identity_hint
1297 SSL_get_psk_identity_hint
1298 SSL_get_psk_identity
1299 SSL_use_psk_identity_hint
1301 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1303 *) Add RFC 3161 compliant time stamp request creation, response generation
1304 and response verification functionality.
1305 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1307 *) Add initial support for TLS extensions, specifically for the server_name
1308 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1309 have new members for a host name. The SSL data structure has an
1310 additional member SSL_CTX *initial_ctx so that new sessions can be
1311 stored in that context to allow for session resumption, even after the
1312 SSL has been switched to a new SSL_CTX in reaction to a client's
1313 server_name extension.
1315 New functions (subject to change):
1317 SSL_get_servername()
1318 SSL_get_servername_type()
1321 New CTRL codes and macros (subject to change):
1323 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1324 - SSL_CTX_set_tlsext_servername_callback()
1325 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1326 - SSL_CTX_set_tlsext_servername_arg()
1327 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1329 openssl s_client has a new '-servername ...' option.
1331 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1332 '-key2 ...', '-servername_fatal' (subject to change). This allows
1333 testing the HostName extension for a specific single host name ('-cert'
1334 and '-key' remain fallbacks for handshakes without HostName
1335 negotiation). If the unrecogninzed_name alert has to be sent, this by
1336 default is a warning; it becomes fatal with the '-servername_fatal'
1339 [Peter Sylvester, Remy Allais, Christophe Renou]
1341 *) Whirlpool hash implementation is added.
1344 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1345 bn(64,32). Because of instruction set limitations it doesn't have
1346 any negative impact on performance. This was done mostly in order
1347 to make it possible to share assembler modules, such as bn_mul_mont
1348 implementations, between 32- and 64-bit builds without hassle.
1351 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1352 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1356 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1357 dedicated Montgomery multiplication procedure, is introduced.
1358 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1359 "64-bit" performance on certain 32-bit targets.
1362 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1363 in SSL structures. New SSL ctrl to set maximum send fragment size.
1364 Save memory by seeting the I/O buffer sizes dynamically instead of
1365 using the maximum available value.
1368 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1369 in addition to the text details.
1372 *) Very, very preliminary EXPERIMENTAL support for printing of general
1373 ASN1 structures. This currently produces rather ugly output and doesn't
1374 handle several customised structures at all.
1377 *) Integrated support for PVK file format and some related formats such
1378 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1379 these in the 'rsa' and 'dsa' utilities.
1382 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1385 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1386 place for the (very old) "NETSCAPE" format certificates which are now
1387 handled using new ASN1 code equivalents.
1390 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1391 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1392 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1395 *) Modify CRL distribution points extension code to print out previously
1396 unsupported fields. Enhance extension setting code to allow setting of
1400 *) Add print and set support for Issuing Distribution Point CRL extension.
1403 *) Change 'Configure' script to enable Camellia by default.
1406 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1408 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1409 Thanks to Antonio Martin, Enterprise Secure Access Research and
1410 Development, Cisco Systems, Inc. for discovering this bug and
1411 preparing a fix. (CVE-2012-0050)
1414 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1416 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1417 of the Vaudenay padding oracle attack on CBC mode encryption
1418 which enables an efficient plaintext recovery attack against
1419 the OpenSSL implementation of DTLS. Their attack exploits timing
1420 differences arising during decryption processing. A research
1421 paper describing this attack can be found at:
1422 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1423 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1424 Security Group at Royal Holloway, University of London
1425 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1426 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1427 for preparing the fix. (CVE-2011-4108)
1428 [Robin Seggelmann, Michael Tuexen]
1430 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1431 [Ben Laurie, Kasper <ekasper@google.com>]
1433 *) Clear bytes used for block padding of SSL 3.0 records.
1435 [Adam Langley (Google)]
1437 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1438 Kadianakis <desnacked@gmail.com> for discovering this issue and
1439 Adam Langley for preparing the fix. (CVE-2011-4619)
1440 [Adam Langley (Google)]
1442 *) Prevent malformed RFC3779 data triggering an assertion failure.
1443 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1444 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1445 [Rob Austein <sra@hactrn.net>]
1447 *) Fix ssl_ciph.c set-up race.
1448 [Adam Langley (Google)]
1450 *) Fix spurious failures in ecdsatest.c.
1451 [Emilia Käsper (Google)]
1453 *) Fix the BIO_f_buffer() implementation (which was mixing different
1454 interpretations of the '..._len' fields).
1455 [Adam Langley (Google)]
1457 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1458 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1459 threads won't reuse the same blinding coefficients.
1461 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1462 lock to call BN_BLINDING_invert_ex, and avoids one use of
1463 BN_BLINDING_update for each BN_BLINDING structure (previously,
1464 the last update always remained unused).
1465 [Emilia Käsper (Google)]
1467 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1468 for multi-threaded use of ECDH.
1469 [Adam Langley (Google)]
1471 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1474 *) Add protection against ECDSA timing attacks as mentioned in the paper
1475 by Billy Bob Brumley and Nicola Tuveri, see:
1477 http://eprint.iacr.org/2011/232.pdf
1479 [Billy Bob Brumley and Nicola Tuveri]
1481 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1483 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1484 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1486 *) Fix bug in string printing code: if *any* escaping is enabled we must
1487 escape the escape character (backslash) or the resulting string is
1491 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1493 *) Disable code workaround for ancient and obsolete Netscape browsers
1494 and servers: an attacker can use it in a ciphersuite downgrade attack.
1495 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1498 *) Fixed J-PAKE implementation error, originally discovered by
1499 Sebastien Martini, further info and confirmation from Stefan
1500 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1503 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1505 *) Fix extension code to avoid race conditions which can result in a buffer
1506 overrun vulnerability: resumed sessions must not be modified as they can
1507 be shared by multiple threads. CVE-2010-3864
1510 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1513 *) Don't reencode certificate when calculating signature: cache and use
1514 the original encoding instead. This makes signature verification of
1515 some broken encodings work correctly.
1518 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1519 is also one of the inputs.
1520 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1522 *) Don't repeatedly append PBE algorithms to table if they already exist.
1523 Sort table on each new add. This effectively makes the table read only
1524 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1528 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1530 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1533 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1534 access or freeing data twice (CVE-2010-0742)
1535 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1537 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1538 common in certificates and some applications which only call
1539 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1543 Reduce copying into .apps and .test in makevms.com
1544 Don't try to use blank CA certificate in CA.com
1545 Allow use of C files from original directories in maketests.com
1546 [Steven M. Schweda" <sms@antinode.info>]
1548 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1550 *) When rejecting SSL/TLS records due to an incorrect version number, never
1551 update s->server with a new major version number. As of
1552 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1553 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1554 the previous behavior could result in a read attempt at NULL when
1555 receiving specific incorrect SSL/TLS records once record payload
1556 protection is active. (CVE-2010-0740)
1557 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1559 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1560 could be crashed if the relevant tables were not present (e.g. chrooted).
1561 [Tomas Hoger <thoger@redhat.com>]
1563 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1565 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1566 [Martin Olsson, Neel Mehta]
1568 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1569 accommodate for stack sorting, always a write lock!).
1572 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1573 excessive delays in the RAND_poll(): over a minute. As a workaround
1574 include a time check in the inner Heap32Next loop too.
1577 *) The code that handled flushing of data in SSL/TLS originally used the
1578 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1579 the problem outlined in PR#1949. The fix suggested there however can
1580 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1581 of Apache). So instead simplify the code to flush unconditionally.
1582 This should be fine since flushing with no data to flush is a no op.
1585 *) Handle TLS versions 2.0 and later properly and correctly use the
1586 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1587 off ancient servers have a habit of sticking around for a while...
1590 *) Modify compression code so it frees up structures without using the
1591 ex_data callbacks. This works around a problem where some applications
1592 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1593 restarting) then use compression (e.g. SSL with compression) later.
1594 This results in significant per-connection memory leaks and
1595 has caused some security issues including CVE-2008-1678 and
1599 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1600 change when encrypting or decrypting.
1603 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1604 connect and renegotiate with servers which do not support RI.
1605 Until RI is more widely deployed this option is enabled by default.
1608 *) Add "missing" ssl ctrls to clear options and mode.
1611 *) If client attempts to renegotiate and doesn't support RI respond with
1612 a no_renegotiation alert as required by RFC5746. Some renegotiating
1613 TLS clients will continue a connection gracefully when they receive
1614 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1615 waiting for a server hello which it will never receive. Now we treat a
1616 received no_renegotiation alert as a fatal error. This is because
1617 applications requesting a renegotiation might well expect it to succeed
1618 and would have no code in place to handle the server denying it so the
1619 only safe thing to do is to terminate the connection.
1622 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1623 peer supports secure renegotiation and 0 otherwise. Print out peer
1624 renegotiation support in s_client/s_server.
1627 *) Replace the highly broken and deprecated SPKAC certification method with
1628 the updated NID creation version. This should correctly handle UTF8.
1631 *) Implement RFC5746. Re-enable renegotiation but require the extension
1632 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1633 turns out to be a bad idea. It has been replaced by
1634 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1635 SSL_CTX_set_options(). This is really not recommended unless you
1636 know what you are doing.
1637 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1639 *) Fixes to stateless session resumption handling. Use initial_ctx when
1640 issuing and attempting to decrypt tickets in case it has changed during
1641 servername handling. Use a non-zero length session ID when attempting
1642 stateless session resumption: this makes it possible to determine if
1643 a resumption has occurred immediately after receiving server hello
1644 (several places in OpenSSL subtly assume this) instead of later in
1648 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1649 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1650 fixes for a few places where the return code is not checked
1652 [Julia Lawall <julia@diku.dk>]
1654 *) Add --strict-warnings option to Configure script to include devteam
1655 warnings in other configurations.
1658 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1659 makes it possible to install openssl libraries in locations which
1660 have names other than "lib", for example "/usr/lib64" which some
1662 [Steve Henson, based on patch from Jeremy Utley]
1664 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1665 X690 8.9.12 and can produce some misleading textual output of OIDs.
1666 [Steve Henson, reported by Dan Kaminsky]
1668 *) Delete MD2 from algorithm tables. This follows the recommendation in
1669 several standards that it is not used in new applications due to
1670 several cryptographic weaknesses. For binary compatibility reasons
1671 the MD2 API is still compiled in by default.
1674 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1678 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1679 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1681 [Guenter <lists@gknw.net>]
1683 *) Fix the server certificate chain building code to use X509_verify_cert(),
1684 it used to have an ad-hoc builder which was unable to cope with anything
1685 other than a simple chain.
1686 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1688 *) Don't check self signed certificate signatures in X509_verify_cert()
1689 by default (a flag can override this): it just wastes time without
1690 adding any security. As a useful side effect self signed root CAs
1691 with non-FIPS digests are now usable in FIPS mode.
1694 *) In dtls1_process_out_of_seq_message() the check if the current message
1695 is already buffered was missing. For every new message was memory
1696 allocated, allowing an attacker to perform an denial of service attack
1697 with sending out of seq handshake messages until there is no memory
1698 left. Additionally every future messege was buffered, even if the
1699 sequence number made no sense and would be part of another handshake.
1700 So only messages with sequence numbers less than 10 in advance will be
1701 buffered. (CVE-2009-1378)
1702 [Robin Seggelmann, discovered by Daniel Mentz]
1704 *) Records are buffered if they arrive with a future epoch to be
1705 processed after finishing the corresponding handshake. There is
1706 currently no limitation to this buffer allowing an attacker to perform
1707 a DOS attack with sending records with future epochs until there is no
1708 memory left. This patch adds the pqueue_size() function to detemine
1709 the size of a buffer and limits the record buffer to 100 entries.
1711 [Robin Seggelmann, discovered by Daniel Mentz]
1713 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1714 parent structure is freed. (CVE-2009-1379)
1717 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1718 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1721 [Ilya O. <vrghost@gmail.com>]
1723 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1725 *) Disable renegotiation completely - this fixes a severe security
1726 problem (CVE-2009-3555) at the cost of breaking all
1727 renegotiation. Renegotiation can be re-enabled by setting
1728 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1729 run-time. This is really not recommended unless you know what
1733 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1735 *) Don't set val to NULL when freeing up structures, it is freed up by
1736 underlying code. If sizeof(void *) > sizeof(long) this can result in
1737 zeroing past the valid field. (CVE-2009-0789)
1738 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1740 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1741 checked correctly. This would allow some invalid signed attributes to
1742 appear to verify correctly. (CVE-2009-0591)
1743 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1745 *) Reject UniversalString and BMPString types with invalid lengths. This
1746 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1747 a legal length. (CVE-2009-0590)
1750 *) Set S/MIME signing as the default purpose rather than setting it
1751 unconditionally. This allows applications to override it at the store
1755 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1756 to handle some structures.
1759 *) Improve efficiency of mem_gets: don't search whole buffer each time
1761 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1763 *) New -hex option for openssl rand.
1766 *) Print out UTF8String and NumericString when parsing ASN1.
1769 *) Support NumericString type for name components.
1772 *) Allow CC in the environment to override the automatically chosen
1773 compiler. Note that nothing is done to ensure flags work with the
1777 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1779 *) Properly check EVP_VerifyFinal() and similar return values
1781 [Ben Laurie, Bodo Moeller, Google Security Team]
1783 *) Enable TLS extensions by default.
1786 *) Allow the CHIL engine to be loaded, whether the application is
1787 multithreaded or not. (This does not release the developer from the
1788 obligation to set up the dynamic locking callbacks.)
1789 [Sander Temme <sander@temme.net>]
1791 *) Use correct exit code if there is an error in dgst command.
1792 [Steve Henson; problem pointed out by Roland Dirlewanger]
1794 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1795 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1798 *) Add experimental JPAKE support, including demo authentication in
1799 s_client and s_server.
1802 *) Set the comparison function in v3_addr_canonize().
1803 [Rob Austein <sra@hactrn.net>]
1805 *) Add support for XMPP STARTTLS in s_client.
1806 [Philip Paeps <philip@freebsd.org>]
1808 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1809 to ensure that even with this option, only ciphersuites in the
1810 server's preference list will be accepted. (Note that the option
1811 applies only when resuming a session, so the earlier behavior was
1812 just about the algorithm choice for symmetric cryptography.)
1815 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1817 *) Fix NULL pointer dereference if a DTLS server received
1818 ChangeCipherSpec as first record (CVE-2009-1386).
1821 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1822 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1825 *) The fix in 0.9.8c that supposedly got rid of unsafe
1826 double-checked locking was incomplete for RSA blinding,
1827 addressing just one layer of what turns out to have been
1828 doubly unsafe triple-checked locking.
1830 So now fix this for real by retiring the MONT_HELPER macro
1831 in crypto/rsa/rsa_eay.c.
1833 [Bodo Moeller; problem pointed out by Marius Schilder]
1835 *) Various precautionary measures:
1837 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1839 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1840 (NB: This would require knowledge of the secret session ticket key
1841 to exploit, in which case you'd be SOL either way.)
1843 - Change bn_nist.c so that it will properly handle input BIGNUMs
1844 outside the expected range.
1846 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1849 [Neel Mehta, Bodo Moeller]
1851 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1852 the load fails. Useful for distros.
1853 [Ben Laurie and the FreeBSD team]
1855 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1858 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1861 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1863 This work was sponsored by Logica.
1866 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1867 keystores. Support for SSL/TLS client authentication too.
1868 Not compiled unless enable-capieng specified to Configure.
1870 This work was sponsored by Logica.
1873 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1874 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1875 attribute creation routines such as certifcate requests and PKCS#12
1879 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1881 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1882 handshake which could lead to a cilent crash as found using the
1883 Codenomicon TLS test suite (CVE-2008-1672)
1884 [Steve Henson, Mark Cox]
1886 *) Fix double free in TLS server name extensions which could lead to
1887 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1890 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1892 Clear the error queue to ensure that error entries left from
1893 older function calls do not interfere with the correct operation.
1894 [Lutz Jaenicke, Erik de Castro Lopo]
1896 *) Remove root CA certificates of commercial CAs:
1898 The OpenSSL project does not recommend any specific CA and does not
1899 have any policy with respect to including or excluding any CA.
1900 Therefore it does not make any sense to ship an arbitrary selection
1901 of root CA certificates with the OpenSSL software.
1904 *) RSA OAEP patches to fix two separate invalid memory reads.
1905 The first one involves inputs when 'lzero' is greater than
1906 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1907 before the beginning of from). The second one involves inputs where
1908 the 'db' section contains nothing but zeroes (there is a one-byte
1909 invalid read after the end of 'db').
1910 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1912 *) Partial backport from 0.9.9-dev:
1914 Introduce bn_mul_mont (dedicated Montgomery multiplication
1915 procedure) as a candidate for BIGNUM assembler implementation.
1916 While 0.9.9-dev uses assembler for various architectures, only
1917 x86_64 is available by default here in the 0.9.8 branch, and
1918 32-bit x86 is available through a compile-time setting.
1920 To try the 32-bit x86 assembler implementation, use Configure
1921 option "enable-montasm" (which exists only for this backport).
1923 As "enable-montasm" for 32-bit x86 disclaims code stability
1924 anyway, in this constellation we activate additional code
1925 backported from 0.9.9-dev for further performance improvements,
1926 namely BN_from_montgomery_word. (To enable this otherwise,
1927 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1929 [Andy Polyakov (backport partially by Bodo Moeller)]
1931 *) Add TLS session ticket callback. This allows an application to set
1932 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1933 values. This is useful for key rollover for example where several key
1934 sets may exist with different names.
1937 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1938 This was broken until now in 0.9.8 releases, such that the only way
1939 a registered ENGINE could be used (assuming it initialises
1940 successfully on the host) was to explicitly set it as the default
1941 for the relevant algorithms. This is in contradiction with 0.9.7
1942 behaviour and the documentation. With this fix, when an ENGINE is
1943 registered into a given algorithm's table of implementations, the
1944 'uptodate' flag is reset so that auto-discovery will be used next
1945 time a new context for that algorithm attempts to select an
1947 [Ian Lister (tweaked by Geoff Thorpe)]
1949 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1950 implemention in the following ways:
1952 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1955 Lack of BER streaming support means one pass streaming processing is
1956 only supported if data is detached: setting the streaming flag is
1957 ignored for embedded content.
1959 CMS support is disabled by default and must be explicitly enabled
1960 with the enable-cms configuration option.
1963 *) Update the GMP engine glue to do direct copies between BIGNUM and
1964 mpz_t when openssl and GMP use the same limb size. Otherwise the
1965 existing "conversion via a text string export" trick is still used.
1966 [Paul Sheer <paulsheer@gmail.com>]
1968 *) Zlib compression BIO. This is a filter BIO which compressed and
1969 uncompresses any data passed through it.
1972 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1973 RFC3394 compatible AES key wrapping.
1976 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1977 sets string data without copying. X509_ALGOR_set0() and
1978 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1979 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1980 from an X509_ATTRIBUTE structure optionally checking it occurs only
1981 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1985 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1986 to get the expected BN_FLG_CONSTTIME behavior.
1987 [Bodo Moeller (Google)]
1991 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1992 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1993 - added some more tests to do_tests.pl
1994 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1995 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1996 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1997 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1998 - various changes to netware.pl to enable gcc-cross builds on Win32
2000 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2001 - various changes to fix missing prototype warnings
2002 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2003 - added AES, WHIRLPOOL and CPUID assembler code to build files
2004 - added missing AES assembler make rules to mk1mf.pl
2005 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2006 [Guenter Knauf <eflash@gmx.net>]
2008 *) Implement certificate status request TLS extension defined in RFC3546.
2009 A client can set the appropriate parameters and receive the encoded
2010 OCSP response via a callback. A server can query the supplied parameters
2011 and set the encoded OCSP response in the callback. Add simplified examples
2012 to s_client and s_server.
2015 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2017 *) Fix various bugs:
2018 + Binary incompatibility of ssl_ctx_st structure
2019 + DTLS interoperation with non-compliant servers
2020 + Don't call get_session_cb() without proposed session
2021 + Fix ia64 assembler code
2022 [Andy Polyakov, Steve Henson]
2024 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2026 *) DTLS Handshake overhaul. There were longstanding issues with
2027 OpenSSL DTLS implementation, which were making it impossible for
2028 RFC 4347 compliant client to communicate with OpenSSL server.
2029 Unfortunately just fixing these incompatibilities would "cut off"
2030 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2031 server keeps tolerating non RFC compliant syntax. The opposite is
2032 not true, 0.9.8f client can not communicate with earlier server.
2033 This update even addresses CVE-2007-4995.
2036 *) Changes to avoid need for function casts in OpenSSL: some compilers
2037 (gcc 4.2 and later) reject their use.
2038 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2041 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2042 RFC4507bis. The encrypted ticket format is an encrypted encoded
2043 SSL_SESSION structure, that way new session features are automatically
2046 If a client application caches session in an SSL_SESSION structure
2047 support is transparent because tickets are now stored in the encoded
2050 The SSL_CTX structure automatically generates keys for ticket
2051 protection in servers so again support should be possible
2052 with no application modification.
2054 If a client or server wishes to disable RFC4507 support then the option
2055 SSL_OP_NO_TICKET can be set.
2057 Add a TLS extension debugging callback to allow the contents of any client
2058 or server extensions to be examined.
2060 This work was sponsored by Google.
2063 *) Add initial support for TLS extensions, specifically for the server_name
2064 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2065 have new members for a host name. The SSL data structure has an
2066 additional member SSL_CTX *initial_ctx so that new sessions can be
2067 stored in that context to allow for session resumption, even after the
2068 SSL has been switched to a new SSL_CTX in reaction to a client's
2069 server_name extension.
2071 New functions (subject to change):
2073 SSL_get_servername()
2074 SSL_get_servername_type()
2077 New CTRL codes and macros (subject to change):
2079 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2080 - SSL_CTX_set_tlsext_servername_callback()
2081 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2082 - SSL_CTX_set_tlsext_servername_arg()
2083 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2085 openssl s_client has a new '-servername ...' option.
2087 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2088 '-key2 ...', '-servername_fatal' (subject to change). This allows
2089 testing the HostName extension for a specific single host name ('-cert'
2090 and '-key' remain fallbacks for handshakes without HostName
2091 negotiation). If the unrecogninzed_name alert has to be sent, this by
2092 default is a warning; it becomes fatal with the '-servername_fatal'
2095 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2097 *) Add AES and SSE2 assembly language support to VC++ build.
2100 *) Mitigate attack on final subtraction in Montgomery reduction.
2103 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2104 (which previously caused an internal error).
2107 *) Squeeze another 10% out of IGE mode when in != out.
2110 *) AES IGE mode speedup.
2111 [Dean Gaudet (Google)]
2113 *) Add the Korean symmetric 128-bit cipher SEED (see
2114 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2115 add SEED ciphersuites from RFC 4162:
2117 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2118 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2119 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2120 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2122 To minimize changes between patchlevels in the OpenSSL 0.9.8
2123 series, SEED remains excluded from compilation unless OpenSSL
2124 is configured with 'enable-seed'.
2125 [KISA, Bodo Moeller]
2127 *) Mitigate branch prediction attacks, which can be practical if a
2128 single processor is shared, allowing a spy process to extract
2129 information. For detailed background information, see
2130 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2131 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2132 and Necessary Software Countermeasures"). The core of the change
2133 are new versions BN_div_no_branch() and
2134 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2135 respectively, which are slower, but avoid the security-relevant
2136 conditional branches. These are automatically called by BN_div()
2137 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2138 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2139 remove a conditional branch.
2141 BN_FLG_CONSTTIME is the new name for the previous
2142 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2143 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2144 in the exponent causes BN_mod_exp_mont() to use the alternative
2145 implementation in BN_mod_exp_mont_consttime().) The old name
2146 remains as a deprecated alias.
2148 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2149 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2150 constant-time implementations for more than just exponentiation.
2151 Here too the old name is kept as a deprecated alias.
2153 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2154 the BN_BLINDING structure gets an independent copy of the
2155 modulus. This means that the previous "BIGNUM *m" argument to
2156 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2157 essentially becomes "const BIGNUM *m", although we can't actually
2158 change this in the header file before 0.9.9. It allows
2159 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2160 enable BN_FLG_CONSTTIME.
2162 [Matthew D Wood (Intel Corp)]
2164 *) In the SSL/TLS server implementation, be strict about session ID
2165 context matching (which matters if an application uses a single
2166 external cache for different purposes). Previously,
2167 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2168 set. This did ensure strict client verification, but meant that,
2169 with applications using a single external cache for quite
2170 different requirements, clients could circumvent ciphersuite
2171 restrictions for a given session ID context by starting a session
2172 in a different context.
2175 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2176 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2177 authentication-only ciphersuites.
2180 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2181 not complete and could lead to a possible single byte overflow
2182 (CVE-2007-5135) [Ben Laurie]
2184 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2186 *) Since AES128 and AES256 (and similarly Camellia128 and
2187 Camellia256) share a single mask bit in the logic of
2188 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2189 kludge to work properly if AES128 is available and AES256 isn't
2190 (or if Camellia128 is available and Camellia256 isn't).
2193 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2194 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2195 When a point or a seed is encoded in a BIT STRING, we need to
2196 prevent the removal of trailing zero bits to get the proper DER
2197 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2198 of a NamedBitList, for which trailing 0 bits need to be removed.)
2201 *) Have SSL/TLS server implementation tolerate "mismatched" record
2202 protocol version while receiving ClientHello even if the
2203 ClientHello is fragmented. (The server can't insist on the
2204 particular protocol version it has chosen before the ServerHello
2205 message has informed the client about his choice.)
2208 *) Add RFC 3779 support.
2209 [Rob Austein for ARIN, Ben Laurie]
2211 *) Load error codes if they are not already present instead of using a
2212 static variable. This allows them to be cleanly unloaded and reloaded.
2213 Improve header file function name parsing.
2216 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2217 or CAPABILITY handshake as required by RFCs.
2220 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2222 *) Introduce limits to prevent malicious keys being able to
2223 cause a denial of service. (CVE-2006-2940)
2224 [Steve Henson, Bodo Moeller]
2226 *) Fix ASN.1 parsing of certain invalid structures that can result
2227 in a denial of service. (CVE-2006-2937) [Steve Henson]
2229 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2230 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2232 *) Fix SSL client code which could crash if connecting to a
2233 malicious SSLv2 server. (CVE-2006-4343)
2234 [Tavis Ormandy and Will Drewry, Google Security Team]
2236 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2237 match only those. Before that, "AES256-SHA" would be interpreted
2238 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2239 the same strength classification in 0.9.7h) as we currently only
2240 have a single AES bit in the ciphersuite description bitmap.
2241 That change, however, also applied to ciphersuite strings such as
2242 "RC4-MD5" that intentionally matched multiple ciphersuites --
2243 namely, SSL 2.0 ciphersuites in addition to the more common ones
2244 from SSL 3.0/TLS 1.0.
2246 So we change the selection algorithm again: Naming an explicit
2247 ciphersuite selects this one ciphersuite, and any other similar
2248 ciphersuite (same bitmap) from *other* protocol versions.
2249 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2250 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2252 Since SSL 2.0 does not have any ciphersuites for which the
2253 128/256 bit distinction would be relevant, this works for now.
2254 The proper fix will be to use different bits for AES128 and
2255 AES256, which would have avoided the problems from the beginning;
2256 however, bits are scarce, so we can only do this in a new release
2257 (not just a patchlevel) when we can change the SSL_CIPHER
2258 definition to split the single 'unsigned long mask' bitmap into
2259 multiple values to extend the available space.
2263 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2265 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2266 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2268 *) Add AES IGE and biIGE modes.
2271 *) Change the Unix randomness entropy gathering to use poll() when
2272 possible instead of select(), since the latter has some
2273 undesirable limitations.
2274 [Darryl Miles via Richard Levitte and Bodo Moeller]
2276 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2277 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2278 cannot be implicitly activated as part of, e.g., the "AES" alias.
2279 However, please upgrade to OpenSSL 0.9.9[-dev] for
2280 non-experimental use of the ECC ciphersuites to get TLS extension
2281 support, which is required for curve and point format negotiation
2282 to avoid potential handshake problems.
2285 *) Disable rogue ciphersuites:
2287 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2288 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2289 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2291 The latter two were purportedly from
2292 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2295 Also deactivate the remaining ciphersuites from
2296 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2297 unofficial, and the ID has long expired.
2300 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2301 dual-core machines) and other potential thread-safety issues.
2304 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2305 versions), which is now available for royalty-free use
2306 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2307 Also, add Camellia TLS ciphersuites from RFC 4132.
2309 To minimize changes between patchlevels in the OpenSSL 0.9.8
2310 series, Camellia remains excluded from compilation unless OpenSSL
2311 is configured with 'enable-camellia'.
2314 *) Disable the padding bug check when compression is in use. The padding
2315 bug check assumes the first packet is of even length, this is not
2316 necessarily true if compresssion is enabled and can result in false
2317 positives causing handshake failure. The actual bug test is ancient
2318 code so it is hoped that implementations will either have fixed it by
2319 now or any which still have the bug do not support compression.
2322 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2324 *) When applying a cipher rule check to see if string match is an explicit
2325 cipher suite and only match that one cipher suite if it is.
2328 *) Link in manifests for VC++ if needed.
2329 [Austin Ziegler <halostatue@gmail.com>]
2331 *) Update support for ECC-based TLS ciphersuites according to
2332 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2333 TLS extensions, which are supported starting with the 0.9.9
2334 branch, not in the OpenSSL 0.9.8 branch).
2337 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2338 opaque EVP_CIPHER_CTX handling.
2341 *) Fixes and enhancements to zlib compression code. We now only use
2342 "zlib1.dll" and use the default __cdecl calling convention on Win32
2343 to conform with the standards mentioned here:
2344 http://www.zlib.net/DLL_FAQ.txt
2345 Static zlib linking now works on Windows and the new --with-zlib-include
2346 --with-zlib-lib options to Configure can be used to supply the location
2347 of the headers and library. Gracefully handle case where zlib library
2351 *) Several fixes and enhancements to the OID generation code. The old code
2352 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2353 handle numbers larger than ULONG_MAX, truncated printing and had a
2354 non standard OBJ_obj2txt() behaviour.
2357 *) Add support for building of engines under engine/ as shared libraries
2358 under VC++ build system.
2361 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2362 Hopefully, we will not see any false combination of paths any more.
2365 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2367 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2368 (part of SSL_OP_ALL). This option used to disable the
2369 countermeasure against man-in-the-middle protocol-version
2370 rollback in the SSL 2.0 server implementation, which is a bad
2371 idea. (CVE-2005-2969)
2373 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2374 for Information Security, National Institute of Advanced Industrial
2375 Science and Technology [AIST], Japan)]
2377 *) Add two function to clear and return the verify parameter flags.
2380 *) Keep cipherlists sorted in the source instead of sorting them at
2381 runtime, thus removing the need for a lock.
2384 *) Avoid some small subgroup attacks in Diffie-Hellman.
2385 [Nick Mathewson and Ben Laurie]
2387 *) Add functions for well-known primes.
2390 *) Extended Windows CE support.
2391 [Satoshi Nakamura and Andy Polyakov]
2393 *) Initialize SSL_METHOD structures at compile time instead of during
2394 runtime, thus removing the need for a lock.
2397 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2398 attempting to decrypt each encrypted key in turn. Add support to
2402 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2404 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2407 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2410 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2411 key into the same file any more.
2414 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2417 *) Add -utf8 command line and config file option to 'ca'.
2418 [Stefan <stf@udoma.org]
2420 *) Removed the macro des_crypt(), as it seems to conflict with some
2421 libraries. Use DES_crypt().
2424 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2425 involves renaming the source and generated shared-libs for
2426 both. The engines will accept the corrected or legacy ids
2427 ('ncipher' and '4758_cca' respectively) when binding. NB,
2428 this only applies when building 'shared'.
2429 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2431 *) Add attribute functions to EVP_PKEY structure. Modify
2432 PKCS12_create() to recognize a CSP name attribute and
2433 use it. Make -CSP option work again in pkcs12 utility.
2436 *) Add new functionality to the bn blinding code:
2437 - automatic re-creation of the BN_BLINDING parameters after
2438 a fixed number of uses (currently 32)
2439 - add new function for parameter creation
2440 - introduce flags to control the update behaviour of the
2441 BN_BLINDING parameters
2442 - hide BN_BLINDING structure
2443 Add a second BN_BLINDING slot to the RSA structure to improve
2444 performance when a single RSA object is shared among several
2448 *) Add support for DTLS.
2449 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2451 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2452 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2455 *) Remove buggy and incompletet DH cert support from
2456 ssl/ssl_rsa.c and ssl/s3_both.c
2459 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2460 the apps/openssl applications.
2463 *) Compile clean with "-Wall -Wmissing-prototypes
2464 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2465 DEBUG_SAFESTACK must also be set.
2468 *) Change ./Configure so that certain algorithms can be disabled by default.
2469 The new counterpiece to "no-xxx" is "enable-xxx".
2471 The patented RC5 and MDC2 algorithms will now be disabled unless
2472 "enable-rc5" and "enable-mdc2", respectively, are specified.
2474 (IDEA remains enabled despite being patented. This is because IDEA
2475 is frequently required for interoperability, and there is no license
2476 fee for non-commercial use. As before, "no-idea" can be used to
2477 avoid this algorithm.)
2481 *) Add processing of proxy certificates (see RFC 3820). This work was
2482 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2483 EGEE (Enabling Grids for E-science in Europe).
2486 *) RC4 performance overhaul on modern architectures/implementations, such
2487 as Intel P4, IA-64 and AMD64.
2490 *) New utility extract-section.pl. This can be used specify an alternative
2491 section number in a pod file instead of having to treat each file as
2492 a separate case in Makefile. This can be done by adding two lines to the
2495 =for comment openssl_section:XXX
2497 The blank line is mandatory.
2501 *) New arguments -certform, -keyform and -pass for s_client and s_server
2502 to allow alternative format key and certificate files and passphrase
2506 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2507 update associated structures and add various utility functions.
2509 Add new policy related verify parameters, include policy checking in
2510 standard verify code. Enhance 'smime' application with extra parameters
2511 to support policy checking and print out.
2514 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2515 Nehemiah processors. These extensions support AES encryption in hardware
2516 as well as RNG (though RNG support is currently disabled).
2517 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2519 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2522 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2523 [Andy Polyakov and a number of other people]
2525 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2526 implementation contributed by IBM.
2527 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2529 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2530 exponent rather than 'unsigned long'. There is a corresponding change to
2531 the new 'rsa_keygen' element of the RSA_METHOD structure.
2532 [Jelte Jansen, Geoff Thorpe]
2534 *) Functionality for creating the initial serial number file is now
2535 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2537 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2538 number file to 1, which is bound to cause problems. To avoid
2539 the problems while respecting compatibility between different 0.9.7
2540 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2541 CA.pl for serial number initialization. With the new release 0.9.8,
2542 we can fix the problem directly in the 'ca' utility.)
2545 *) Reduced header interdepencies by declaring more opaque objects in
2546 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2547 give fewer recursive includes, which could break lazy source code - so
2548 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2549 developers should define this symbol when building and using openssl to
2550 ensure they track the recommended behaviour, interfaces, [etc], but
2551 backwards-compatible behaviour prevails when this isn't defined.
2554 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2557 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2558 This will generate a random key of the appropriate length based on the
2559 cipher context. The EVP_CIPHER can provide its own random key generation
2560 routine to support keys of a specific form. This is used in the des and
2561 3des routines to generate a key of the correct parity. Update S/MIME
2562 code to use new functions and hence generate correct parity DES keys.
2563 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2564 valid (weak or incorrect parity).
2567 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2568 as looking them up. This is useful when the verified structure may contain
2569 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2570 present unless the new PKCS7_NO_CRL flag is asserted.
2573 *) Extend ASN1 oid configuration module. It now additionally accepts the
2576 shortName = some long name, 1.2.3.4
2579 *) Reimplemented the BN_CTX implementation. There is now no more static
2580 limitation on the number of variables it can handle nor the depth of the
2581 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2582 information can now expand as required, and rather than having a single
2583 static array of bignums, BN_CTX now uses a linked-list of such arrays
2584 allowing it to expand on demand whilst maintaining the usefulness of
2585 BN_CTX's "bundling".
2588 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2589 to allow all RSA operations to function using a single BN_CTX.
2592 *) Preliminary support for certificate policy evaluation and checking. This
2593 is initially intended to pass the tests outlined in "Conformance Testing
2594 of Relying Party Client Certificate Path Processing Logic" v1.07.
2597 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2598 remained unused and not that useful. A variety of other little bignum
2599 tweaks and fixes have also been made continuing on from the audit (see
2603 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2604 associated ASN1, EVP and SSL functions and old ASN1 macros.
2607 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2608 and this should never fail. So the return value from the use of
2609 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2610 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2613 *) BN_CTX_get() should return zero-valued bignums, providing the same
2614 initialised value as BN_new().
2615 [Geoff Thorpe, suggested by Ulf Möller]
2617 *) Support for inhibitAnyPolicy certificate extension.
2620 *) An audit of the BIGNUM code is underway, for which debugging code is
2621 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2622 is considered valid when processing BIGNUMs, and causes execution to
2623 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2624 further steps are taken to deliberately pollute unused data in BIGNUM
2625 structures to try and expose faulty code further on. For now, openssl will
2626 (in its default mode of operation) continue to tolerate the inconsistent
2627 forms that it has tolerated in the past, but authors and packagers should
2628 consider trying openssl and their own applications when compiled with
2629 these debugging symbols defined. It will help highlight potential bugs in
2630 their own code, and will improve the test coverage for OpenSSL itself. At
2631 some point, these tighter rules will become openssl's default to improve
2632 maintainability, though the assert()s and other overheads will remain only
2633 in debugging configurations. See bn.h for more details.
2634 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2636 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2637 that can only be obtained through BN_CTX_new() (which implicitly
2638 initialises it). The presence of this function only made it possible
2639 to overwrite an existing structure (and cause memory leaks).
2642 *) Because of the callback-based approach for implementing LHASH as a
2643 template type, lh_insert() adds opaque objects to hash-tables and
2644 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2645 to clean up those corresponding objects before destroying the hash table
2646 (and losing the object pointers). So some over-zealous constifications in
2647 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2648 objects as "const" and the lh_doall[_arg] callback wrappers are not
2649 prototyped to have "const" restrictions on the object pointers they are
2650 given (and so aren't required to cast them away any more).
2653 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2654 (speed) prefers to use its own implementation. The two implementations
2655 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2656 its object type properly exposed (MS_TM) instead of casting to/from "char
2657 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2658 aren't necessarily the greatest nomenclatures - but this is what was used
2659 internally to the implementation so I've used that for now.
2662 *) Ensure that deprecated functions do not get compiled when
2663 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2664 the self-tests were still using deprecated key-generation functions so
2665 these have been updated also.
2668 *) Reorganise PKCS#7 code to separate the digest location functionality
2669 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2670 New function PKCS7_set_digest() to set the digest type for PKCS#7
2671 digestedData type. Add additional code to correctly generate the
2672 digestedData type and add support for this type in PKCS7 initialization
2676 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2677 structure of type "other".
2680 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2681 sure the loop does correctly stop and breaking ("division by zero")
2682 modulus operations are not performed. The (pre-generated) prime
2683 table crypto/bn/bn_prime.h was already correct, but it could not be
2684 re-generated on some platforms because of the "division by zero"
2685 situation in the script.
2686 [Ralf S. Engelschall]
2688 *) Update support for ECC-based TLS ciphersuites according to
2689 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2690 SHA-1 now is only used for "small" curves (where the
2691 representation of a field element takes up to 24 bytes); for
2692 larger curves, the field element resulting from ECDH is directly
2693 used as premaster secret.
2694 [Douglas Stebila (Sun Microsystems Laboratories)]
2696 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2697 curve secp160r1 to the tests.
2698 [Douglas Stebila (Sun Microsystems Laboratories)]
2700 *) Add the possibility to load symbols globally with DSO.
2701 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2703 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2704 control of the error stack.
2707 *) Add support for STORE in ENGINE.
2710 *) Add the STORE type. The intention is to provide a common interface
2711 to certificate and key stores, be they simple file-based stores, or
2712 HSM-type store, or LDAP stores, or...
2713 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2716 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2717 pass a list of arguments to any function as well as provide a way
2718 for a function to pass data back to the caller.
2721 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2722 works like BUF_strdup() but can be used to duplicate a portion of
2723 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2727 *) Add the function sk_find_ex() which works like sk_find(), but will
2728 return an index to an element even if an exact match couldn't be
2729 found. The index is guaranteed to point at the element where the
2730 searched-for key would be inserted to preserve sorting order.
2733 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2734 takes an extra flags argument for optional functionality. Currently,
2735 the following flags are defined:
2737 OBJ_BSEARCH_VALUE_ON_NOMATCH
2738 This one gets OBJ_bsearch_ex() to return a pointer to the first
2739 element where the comparing function returns a negative or zero
2742 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2743 This one gets OBJ_bsearch_ex() to return a pointer to the first
2744 element where the comparing function returns zero. This is useful
2745 if there are more than one element where the comparing function
2749 *) Make it possible to create self-signed certificates with 'openssl ca'
2750 in such a way that the self-signed certificate becomes part of the
2751 CA database and uses the same mechanisms for serial number generation
2752 as all other certificate signing. The new flag '-selfsign' enables
2753 this functionality. Adapt CA.sh and CA.pl.in.
2756 *) Add functionality to check the public key of a certificate request
2757 against a given private. This is useful to check that a certificate
2758 request can be signed by that key (self-signing).
2761 *) Make it possible to have multiple active certificates with the same
2762 subject in the CA index file. This is done only if the keyword
2763 'unique_subject' is set to 'no' in the main CA section (default
2764 if 'CA_default') of the configuration file. The value is saved
2765 with the database itself in a separate index attribute file,
2766 named like the index file with '.attr' appended to the name.
2769 *) Generate muti valued AVAs using '+' notation in config files for
2773 *) Support for nameConstraints certificate extension.
2776 *) Support for policyConstraints certificate extension.
2779 *) Support for policyMappings certificate extension.
2782 *) Make sure the default DSA_METHOD implementation only uses its
2783 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2784 and change its own handlers to be NULL so as to remove unnecessary
2785 indirection. This lets alternative implementations fallback to the
2786 default implementation more easily.
2789 *) Support for directoryName in GeneralName related extensions
2793 *) Make it possible to link applications using Makefile.shared.
2794 Make that possible even when linking against static libraries!
2797 *) Support for single pass processing for S/MIME signing. This now
2798 means that S/MIME signing can be done from a pipe, in addition
2799 cleartext signing (multipart/signed type) is effectively streaming
2800 and the signed data does not need to be all held in memory.
2802 This is done with a new flag PKCS7_STREAM. When this flag is set
2803 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2804 is done after the data is output (and digests calculated) in
2805 SMIME_write_PKCS7().
2808 *) Add full support for -rpath/-R, both in shared libraries and
2809 applications, at least on the platforms where it's known how
2813 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2814 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2815 will now compute a table of multiples of the generator that
2816 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2817 faster (notably in the case of a single point multiplication,
2818 scalar * generator).
2819 [Nils Larsch, Bodo Moeller]
2821 *) IPv6 support for certificate extensions. The various extensions
2822 which use the IP:a.b.c.d can now take IPv6 addresses using the
2823 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2827 *) Added an ENGINE that implements RSA by performing private key
2828 exponentiations with the GMP library. The conversions to and from
2829 GMP's mpz_t format aren't optimised nor are any montgomery forms
2830 cached, and on x86 it appears OpenSSL's own performance has caught up.
2831 However there are likely to be other architectures where GMP could
2832 provide a boost. This ENGINE is not built in by default, but it can be
2833 specified at Configure time and should be accompanied by the necessary
2834 linker additions, eg;
2835 ./config -DOPENSSL_USE_GMP -lgmp
2838 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2839 testing availability of engines with "-t" - the old behaviour is
2840 produced by increasing the feature's verbosity with "-tt".
2843 *) ECDSA routines: under certain error conditions uninitialized BN objects
2844 could be freed. Solution: make sure initialization is performed early
2845 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2849 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2850 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2851 software implementations. For DSA and DH, parameter generation can
2852 also be overriden by providing the appropriate method callbacks.
2855 *) Change the "progress" mechanism used in key-generation and
2856 primality testing to functions that take a new BN_GENCB pointer in
2857 place of callback/argument pairs. The new API functions have "_ex"
2858 postfixes and the older functions are reimplemented as wrappers for
2859 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2860 declarations of the old functions to help (graceful) attempts to
2861 migrate to the new functions. Also, the new key-generation API
2862 functions operate on a caller-supplied key-structure and return
2863 success/failure rather than returning a key or NULL - this is to
2864 help make "keygen" another member function of RSA_METHOD etc.
2866 Example for using the new callback interface:
2868 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2872 BN_GENCB_set(&my_cb, my_callback, my_arg);
2874 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2875 /* For the meaning of a, b in calls to my_callback(), see the
2876 * documentation of the function that calls the callback.
2877 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2878 * my_callback should return 1 if it wants BN_is_prime_ex()
2879 * to continue, or 0 to stop.
2884 *) Change the ZLIB compression method to be stateful, and make it
2885 available to TLS with the number defined in
2886 draft-ietf-tls-compression-04.txt.
2889 *) Add the ASN.1 structures and functions for CertificatePair, which
2890 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2892 CertificatePair ::= SEQUENCE {
2893 forward [0] Certificate OPTIONAL,
2894 reverse [1] Certificate OPTIONAL,
2895 -- at least one of the pair shall be present -- }
2897 Also implement the PEM functions to read and write certificate
2898 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2900 This needed to be defined, mostly for the sake of the LDAP
2901 attribute crossCertificatePair, but may prove useful elsewhere as
2905 *) Make it possible to inhibit symlinking of shared libraries in
2906 Makefile.shared, for Cygwin's sake.
2909 *) Extend the BIGNUM API by creating a function
2910 void BN_set_negative(BIGNUM *a, int neg);
2911 and a macro that behave like
2912 int BN_is_negative(const BIGNUM *a);
2914 to avoid the need to access 'a->neg' directly in applications.
2917 *) Implement fast modular reduction for pseudo-Mersenne primes
2918 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2919 EC_GROUP_new_curve_GFp() will now automatically use this
2921 [Nils Larsch <nla@trustcenter.de>]
2923 *) Add new lock type (CRYPTO_LOCK_BN).
2926 *) Change the ENGINE framework to automatically load engines
2927 dynamically from specific directories unless they could be
2928 found to already be built in or loaded. Move all the
2929 current engines except for the cryptodev one to a new
2931 The engines in engines/ are built as shared libraries if
2932 the "shared" options was given to ./Configure or ./config.
2933 Otherwise, they are inserted in libcrypto.a.
2934 /usr/local/ssl/engines is the default directory for dynamic
2935 engines, but that can be overriden at configure time through
2936 the usual use of --prefix and/or --openssldir, and at run
2937 time with the environment variable OPENSSL_ENGINES.
2938 [Geoff Thorpe and Richard Levitte]
2940 *) Add Makefile.shared, a helper makefile to build shared
2941 libraries. Addapt Makefile.org.
2944 *) Add version info to Win32 DLLs.
2945 [Peter 'Luna' Runestig" <peter@runestig.com>]
2947 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2948 can be added using this API to created arbitrary PKCS#12
2949 files while avoiding the low level API.
2951 New options to PKCS12_create(), key or cert can be NULL and
2952 will then be omitted from the output file. The encryption
2953 algorithm NIDs can be set to -1 for no encryption, the mac
2954 iteration count can be set to 0 to omit the mac.
2956 Enhance pkcs12 utility by making the -nokeys and -nocerts
2957 options work when creating a PKCS#12 file. New option -nomac
2958 to omit the mac, NONE can be set for an encryption algorithm.
2959 New code is modified to use the enhanced PKCS12_create()
2960 instead of the low level API.
2963 *) Extend ASN1 encoder to support indefinite length constructed
2964 encoding. This can output sequences tags and octet strings in
2965 this form. Modify pk7_asn1.c to support indefinite length
2966 encoding. This is experimental and needs additional code to
2967 be useful, such as an ASN1 bio and some enhanced streaming
2970 Extend template encode functionality so that tagging is passed
2971 down to the template encoder.
2974 *) Let 'openssl req' fail if an argument to '-newkey' is not
2975 recognized instead of using RSA as a default.
2978 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2979 As these are not official, they are not included in "ALL";
2980 the "ECCdraft" ciphersuite group alias can be used to select them.
2981 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2983 *) Add ECDH engine support.
2984 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2986 *) Add ECDH in new directory crypto/ecdh/.
2987 [Douglas Stebila (Sun Microsystems Laboratories)]
2989 *) Let BN_rand_range() abort with an error after 100 iterations
2990 without success (which indicates a broken PRNG).
2993 *) Change BN_mod_sqrt() so that it verifies that the input value
2994 is really the square of the return value. (Previously,
2995 BN_mod_sqrt would show GIGO behaviour.)
2998 *) Add named elliptic curves over binary fields from X9.62, SECG,
2999 and WAP/WTLS; add OIDs that were still missing.
3001 [Sheueling Chang Shantz and Douglas Stebila
3002 (Sun Microsystems Laboratories)]
3004 *) Extend the EC library for elliptic curves over binary fields
3005 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3008 EC_GF2m_simple_method
3012 EC_GROUP_new_curve_GF2m
3013 EC_GROUP_set_curve_GF2m
3014 EC_GROUP_get_curve_GF2m
3015 EC_POINT_set_affine_coordinates_GF2m
3016 EC_POINT_get_affine_coordinates_GF2m
3017 EC_POINT_set_compressed_coordinates_GF2m
3019 Point compression for binary fields is disabled by default for
3020 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3023 As binary polynomials are represented as BIGNUMs, various members
3024 of the EC_GROUP and EC_POINT data structures can be shared
3025 between the implementations for prime fields and binary fields;
3026 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3027 are essentially identical to their ..._GFp counterparts.
3028 (For simplicity, the '..._GFp' prefix has been dropped from
3029 various internal method names.)
3031 An internal 'field_div' method (similar to 'field_mul' and
3032 'field_sqr') has been added; this is used only for binary fields.
3034 [Sheueling Chang Shantz and Douglas Stebila
3035 (Sun Microsystems Laboratories)]
3037 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3038 through methods ('mul', 'precompute_mult').
3040 The generic implementations (now internally called 'ec_wNAF_mul'
3041 and 'ec_wNAF_precomputed_mult') remain the default if these
3042 methods are undefined.
3044 [Sheueling Chang Shantz and Douglas Stebila
3045 (Sun Microsystems Laboratories)]
3047 *) New function EC_GROUP_get_degree, which is defined through
3048 EC_METHOD. For curves over prime fields, this returns the bit
3049 length of the modulus.
3051 [Sheueling Chang Shantz and Douglas Stebila
3052 (Sun Microsystems Laboratories)]
3054 *) New functions EC_GROUP_dup, EC_POINT_dup.
3055 (These simply call ..._new and ..._copy).
3057 [Sheueling Chang Shantz and Douglas Stebila
3058 (Sun Microsystems Laboratories)]
3060 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3061 Polynomials are represented as BIGNUMs (where the sign bit is not
3062 used) in the following functions [macros]:
3065 BN_GF2m_sub [= BN_GF2m_add]
3066 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3067 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3068 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3070 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3071 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3072 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3073 BN_GF2m_cmp [= BN_ucmp]
3075 (Note that only the 'mod' functions are actually for fields GF(2^m).
3076 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3078 For some functions, an the irreducible polynomial defining a
3079 field can be given as an 'unsigned int[]' with strictly
3080 decreasing elements giving the indices of those bits that are set;
3081 i.e., p[] represents the polynomial
3082 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3084 p[0] > p[1] > ... > p[k] = 0.
3085 This applies to the following functions:
3090 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3091 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3093 BN_GF2m_mod_sqrt_arr
3094 BN_GF2m_mod_solve_quad_arr
3098 Conversion can be performed by the following functions:
3103 bntest.c has additional tests for binary polynomial arithmetic.
3105 Two implementations for BN_GF2m_mod_div() are available.
3106 The default algorithm simply uses BN_GF2m_mod_inv() and
3107 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3108 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3109 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3111 [Sheueling Chang Shantz and Douglas Stebila
3112 (Sun Microsystems Laboratories)]
3114 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3115 functionality is disabled at compile-time.
3116 [Douglas Stebila <douglas.stebila@sun.com>]
3118 *) Change default behaviour of 'openssl asn1parse' so that more
3119 information is visible when viewing, e.g., a certificate:
3121 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3122 mode the content of non-printable OCTET STRINGs is output in a
3123 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3124 avoid the appearance of a printable string.
3125 [Nils Larsch <nla@trustcenter.de>]
3127 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3129 EC_GROUP_set_asn1_flag()
3130 EC_GROUP_get_asn1_flag()
3131 EC_GROUP_set_point_conversion_form()
3132 EC_GROUP_get_point_conversion_form()
3133 These control ASN1 encoding details:
3134 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3135 has been set to OPENSSL_EC_NAMED_CURVE.
3136 - Points are encoded in uncompressed form by default; options for
3137 asn1_for are as for point2oct, namely
3138 POINT_CONVERSION_COMPRESSED
3139 POINT_CONVERSION_UNCOMPRESSED
3140 POINT_CONVERSION_HYBRID
3142 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3145 EC_GROUP_get0_seed()
3146 EC_GROUP_get_seed_len()
3147 This is used only for ASN1 purposes (so far).
3148 [Nils Larsch <nla@trustcenter.de>]
3150 *) Add 'field_type' member to EC_METHOD, which holds the NID
3151 of the appropriate field type OID. The new function
3152 EC_METHOD_get_field_type() returns this value.
3153 [Nils Larsch <nla@trustcenter.de>]
3158 EC_POINT_point2hex()
3159 EC_POINT_hex2point()
3160 providing useful interfaces to EC_POINT_point2oct() and
3161 EC_POINT_oct2point().
3162 [Nils Larsch <nla@trustcenter.de>]
3164 *) Change internals of the EC library so that the functions
3165 EC_GROUP_set_generator()
3166 EC_GROUP_get_generator()
3167 EC_GROUP_get_order()
3168 EC_GROUP_get_cofactor()
3169 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3170 to methods, which would lead to unnecessary code duplication when
3171 adding different types of curves.
3172 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3174 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3175 arithmetic, and such that modified wNAFs are generated
3176 (which avoid length expansion in many cases).
3179 *) Add a function EC_GROUP_check_discriminant() (defined via
3180 EC_METHOD) that verifies that the curve discriminant is non-zero.
3182 Add a function EC_GROUP_check() that makes some sanity tests
3183 on a EC_GROUP, its generator and order. This includes
3184 EC_GROUP_check_discriminant().
3185 [Nils Larsch <nla@trustcenter.de>]
3187 *) Add ECDSA in new directory crypto/ecdsa/.
3189 Add applications 'openssl ecparam' and 'openssl ecdsa'
3190 (these are based on 'openssl dsaparam' and 'openssl dsa').
3192 ECDSA support is also included in various other files across the
3193 library. Most notably,
3194 - 'openssl req' now has a '-newkey ecdsa:file' option;
3195 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3196 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3197 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3198 them suitable for ECDSA where domain parameters must be
3199 extracted before the specific public key;
3200 - ECDSA engine support has been added.
3201 [Nils Larsch <nla@trustcenter.de>]
3203 *) Include some named elliptic curves, and add OIDs from X9.62,
3204 SECG, and WAP/WTLS. Each curve can be obtained from the new
3206 EC_GROUP_new_by_curve_name(),
3207 and the list of available named curves can be obtained with
3208 EC_get_builtin_curves().
3209 Also add a 'curve_name' member to EC_GROUP objects, which can be
3211 EC_GROUP_set_curve_name()
3212 EC_GROUP_get_curve_name()
3213 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3215 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3216 was actually never needed) and in BN_mul(). The removal in BN_mul()
3217 required a small change in bn_mul_part_recursive() and the addition
3218 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3219 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3220 bn_sub_words() and bn_add_words() except they take arrays with
3224 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3226 *) Cleanse PEM buffers before freeing them since they may contain
3228 [Benjamin Bennett <ben@psc.edu>]
3230 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3231 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3232 authentication-only ciphersuites.
3235 *) Since AES128 and AES256 share a single mask bit in the logic of
3236 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3237 kludge to work properly if AES128 is available and AES256 isn't.
3240 *) Expand security boundary to match 1.1.1 module.
3243 *) Remove redundant features: hash file source, editing of test vectors
3244 modify fipsld to use external fips_premain.c signature.
3247 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3248 run algorithm test programs.
3251 *) Make algorithm test programs more tolerant of whitespace.
3254 *) Have SSL/TLS server implementation tolerate "mismatched" record
3255 protocol version while receiving ClientHello even if the
3256 ClientHello is fragmented. (The server can't insist on the
3257 particular protocol version it has chosen before the ServerHello
3258 message has informed the client about his choice.)
3261 *) Load error codes if they are not already present instead of using a
3262 static variable. This allows them to be cleanly unloaded and reloaded.
3265 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3267 *) Introduce limits to prevent malicious keys being able to
3268 cause a denial of service. (CVE-2006-2940)
3269 [Steve Henson, Bodo Moeller]
3271 *) Fix ASN.1 parsing of certain invalid structures that can result
3272 in a denial of service. (CVE-2006-2937) [Steve Henson]
3274 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3275 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3277 *) Fix SSL client code which could crash if connecting to a
3278 malicious SSLv2 server. (CVE-2006-4343)
3279 [Tavis Ormandy and Will Drewry, Google Security Team]
3281 *) Change ciphersuite string processing so that an explicit
3282 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3283 will no longer include "AES128-SHA"), and any other similar
3284 ciphersuite (same bitmap) from *other* protocol versions (so that
3285 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3286 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3287 changes from 0.9.8b and 0.9.8d.
3290 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3292 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3293 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3295 *) Change the Unix randomness entropy gathering to use poll() when
3296 possible instead of select(), since the latter has some
3297 undesirable limitations.
3298 [Darryl Miles via Richard Levitte and Bodo Moeller]
3300 *) Disable rogue ciphersuites:
3302 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3303 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3304 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3306 The latter two were purportedly from
3307 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3310 Also deactive the remaining ciphersuites from
3311 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3312 unofficial, and the ID has long expired.
3315 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3316 dual-core machines) and other potential thread-safety issues.
3319 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3321 *) Adapt fipsld and the build system to link against the validated FIPS
3322 module in FIPS mode.
3325 *) Fixes for VC++ 2005 build under Windows.
3328 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3329 from a Windows bash shell such as MSYS. It is autodetected from the
3330 "config" script when run from a VC++ environment. Modify standard VC++
3331 build to use fipscanister.o from the GNU make build.
3334 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3336 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3337 The value now differs depending on if you build for FIPS or not.
3338 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3339 safely run with a non-FIPSed libcrypto, as it may crash because of
3340 the difference induced by this change.
3343 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3345 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3346 (part of SSL_OP_ALL). This option used to disable the
3347 countermeasure against man-in-the-middle protocol-version
3348 rollback in the SSL 2.0 server implementation, which is a bad
3349 idea. (CVE-2005-2969)
3351 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3352 for Information Security, National Institute of Advanced Industrial
3353 Science and Technology [AIST], Japan)]
3355 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3356 mainly for FIPS compliance and not fully integrated at this stage.
3359 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3360 the exponentiation using a fixed-length exponent. (Otherwise,
3361 the information leaked through timing could expose the secret key
3362 after many signatures; cf. Bleichenbacher's attack on DSA with
3366 *) Make a new fixed-window mod_exp implementation the default for
3367 RSA, DSA, and DH private-key operations so that the sequence of
3368 squares and multiplies and the memory access pattern are
3369 independent of the particular secret key. This will mitigate
3370 cache-timing and potential related attacks.
3372 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3373 and this is automatically used by BN_mod_exp_mont() if the new flag
3374 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3375 will use this BN flag for private exponents unless the flag
3376 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3377 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3379 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3381 *) Change the client implementation for SSLv23_method() and
3382 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3383 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3384 (Previously, the SSL 2.0 backwards compatible Client Hello
3385 message format would be used even with SSL_OP_NO_SSLv2.)
3388 *) Add support for smime-type MIME parameter in S/MIME messages which some
3392 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3393 a threadsafe manner. Modify rsa code to use new function and add calls
3394 to dsa and dh code (which had race conditions before).
3397 *) Include the fixed error library code in the C error file definitions
3398 instead of fixing them up at runtime. This keeps the error code
3399 structures constant.
3402 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3404 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3407 *) Fixes for newer kerberos headers. NB: the casts are needed because
3408 the 'length' field is signed on one version and unsigned on another
3409 with no (?) obvious way to tell the difference, without these VC++
3410 complains. Also the "definition" of FAR (blank) is no longer included
3411 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3412 some needed definitions.
3415 *) Undo Cygwin change.
3418 *) Added support for proxy certificates according to RFC 3820.
3419 Because they may be a security thread to unaware applications,
3420 they must be explicitely allowed in run-time. See
3421 docs/HOWTO/proxy_certificates.txt for further information.
3424 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3426 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3427 server and client random values. Previously
3428 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3429 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3431 This change has negligible security impact because:
3433 1. Server and client random values still have 24 bytes of pseudo random
3436 2. Server and client random values are sent in the clear in the initial
3439 3. The master secret is derived using the premaster secret (48 bytes in
3440 size for static RSA ciphersuites) as well as client server and random
3443 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3446 [Stephen Henson, reported by UK NISCC]
3448 *) Use Windows randomness collection on Cygwin.
3451 *) Fix hang in EGD/PRNGD query when communication socket is closed
3452 prematurely by EGD/PRNGD.
3453 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3455 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3458 *) Back-port of selected performance improvements from development
3459 branch, as well as improved support for PowerPC platforms.
3462 *) Add lots of checks for memory allocation failure, error codes to indicate
3463 failure and freeing up memory if a failure occurs.
3464 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3466 *) Add new -passin argument to dgst.
3469 *) Perform some character comparisons of different types in X509_NAME_cmp:
3470 this is needed for some certificates that reencode DNs into UTF8Strings
3471 (in violation of RFC3280) and can't or wont issue name rollover
3475 *) Make an explicit check during certificate validation to see that
3476 the CA setting in each certificate on the chain is correct. As a
3477 side effect always do the following basic checks on extensions,
3478 not just when there's an associated purpose to the check:
3480 - if there is an unhandled critical extension (unless the user
3481 has chosen to ignore this fault)
3482 - if the path length has been exceeded (if one is set at all)
3483 - that certain extensions fit the associated purpose (if one has
3487 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3489 *) Avoid a race condition when CRLs are checked in a multi threaded
3490 environment. This would happen due to the reordering of the revoked
3491 entries during signature checking and serial number lookup. Now the
3492 encoding is cached and the serial number sort performed under a lock.
3493 Add new STACK function sk_is_sorted().
3496 *) Add Delta CRL to the extension code.
3499 *) Various fixes to s3_pkt.c so alerts are sent properly.
3500 [David Holmes <d.holmes@f5.com>]
3502 *) Reduce the chances of duplicate issuer name and serial numbers (in
3503 violation of RFC3280) using the OpenSSL certificate creation utilities.
3504 This is done by creating a random 64 bit value for the initial serial
3505 number when a serial number file is created or when a self signed
3506 certificate is created using 'openssl req -x509'. The initial serial
3507 number file is created using 'openssl x509 -next_serial' in CA.pl
3508 rather than being initialized to 1.
3511 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3513 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3514 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3515 [Joe Orton, Steve Henson]
3517 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3519 [Joe Orton, Steve Henson]
3521 *) Make it possible to have multiple active certificates with the same
3522 subject in the CA index file. This is done only if the keyword
3523 'unique_subject' is set to 'no' in the main CA section (default
3524 if 'CA_default') of the configuration file. The value is saved
3525 with the database itself in a separate index attribute file,
3526 named like the index file with '.attr' appended to the name.
3529 *) X509 verify fixes. Disable broken certificate workarounds when
3530 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3531 keyUsage extension present. Don't accept CRLs with unhandled critical
3532 extensions: since verify currently doesn't process CRL extensions this
3533 rejects a CRL with *any* critical extensions. Add new verify error codes
3537 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3538 A clarification of RFC2560 will require the use of OCTET STRINGs and
3539 some implementations cannot handle the current raw format. Since OpenSSL
3540 copies and compares OCSP nonces as opaque blobs without any attempt at
3541 parsing them this should not create any compatibility issues.
3544 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3545 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3546 this HMAC (and other) operations are several times slower than OpenSSL
3550 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3551 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3553 *) Use the correct content when signing type "other".
3556 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3558 *) Fix various bugs revealed by running the NISCC test suite:
3560 Stop out of bounds reads in the ASN1 code when presented with
3561 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3563 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3565 If verify callback ignores invalid public key errors don't try to check
3566 certificate signature with the NULL public key.
3570 *) New -ignore_err option in ocsp application to stop the server
3571 exiting on the first error in a request.
3574 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3575 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3579 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3580 extra data after the compression methods not only for TLS 1.0
3581 but also for SSL 3.0 (as required by the specification).
3582 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3584 *) Change X509_certificate_type() to mark the key as exported/exportable
3585 when it's 512 *bits* long, not 512 bytes.
3588 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3589 blocks during encryption.
3592 *) Various fixes to base64 BIO and non blocking I/O. On write
3593 flushes were not handled properly if the BIO retried. On read
3594 data was not being buffered properly and had various logic bugs.
3595 This also affects blocking I/O when the data being decoded is a
3599 *) Various S/MIME bugfixes and compatibility changes:
3600 output correct application/pkcs7 MIME type if
3601 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3602 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3603 of files as .eml work). Correctly handle very long lines in MIME
3607 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3609 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3610 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3611 a protocol version number mismatch like a decryption error
3612 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3615 *) Turn on RSA blinding by default in the default implementation
3616 to avoid a timing attack. Applications that don't want it can call
3617 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3618 They would be ill-advised to do so in most cases.
3619 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3621 *) Change RSA blinding code so that it works when the PRNG is not
3622 seeded (in this case, the secret RSA exponent is abused as
3623 an unpredictable seed -- if it is not unpredictable, there
3624 is no point in blinding anyway). Make RSA blinding thread-safe
3625 by remembering the creator's thread ID in rsa->blinding and
3626 having all other threads use local one-time blinding factors
3627 (this requires more computation than sharing rsa->blinding, but
3628 avoids excessive locking; and if an RSA object is not shared
3629 between threads, blinding will still be very fast).
3632 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3633 ENGINE as defaults for all supported algorithms irrespective of
3634 the 'flags' parameter. 'flags' is now honoured, so applications
3635 should make sure they are passing it correctly.
3638 *) Target "mingw" now allows native Windows code to be generated in
3639 the Cygwin environment as well as with the MinGW compiler.
3642 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3644 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3645 via timing by performing a MAC computation even if incorrrect
3646 block cipher padding has been found. This is a countermeasure
3647 against active attacks where the attacker has to distinguish
3648 between bad padding and a MAC verification error. (CVE-2003-0078)
3650 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3651 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3652 Martin Vuagnoux (EPFL, Ilion)]
3654 *) Make the no-err option work as intended. The intention with no-err
3655 is not to have the whole error stack handling routines removed from
3656 libcrypto, it's only intended to remove all the function name and
3657 reason texts, thereby removing some of the footprint that may not
3658 be interesting if those errors aren't displayed anyway.
3660 NOTE: it's still possible for any application or module to have it's
3661 own set of error texts inserted. The routines are there, just not
3662 used by default when no-err is given.
3665 *) Add support for FreeBSD on IA64.
3666 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3668 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3669 Kerberos function mit_des_cbc_cksum(). Before this change,
3670 the value returned by DES_cbc_cksum() was like the one from
3671 mit_des_cbc_cksum(), except the bytes were swapped.
3672 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3674 *) Allow an application to disable the automatic SSL chain building.
3675 Before this a rather primitive chain build was always performed in
3676 ssl3_output_cert_chain(): an application had no way to send the
3677 correct chain if the automatic operation produced an incorrect result.
3679 Now the chain builder is disabled if either:
3681 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3683 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3685 The reasoning behind this is that an application would not want the
3686 auto chain building to take place if extra chain certificates are
3687 present and it might also want a means of sending no additional
3688 certificates (for example the chain has two certificates and the
3692 *) Add the possibility to build without the ENGINE framework.
3693 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3695 *) Under Win32 gmtime() can return NULL: check return value in
3696 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3699 *) DSA routines: under certain error conditions uninitialized BN objects
3700 could be freed. Solution: make sure initialization is performed early
3701 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3702 Nils Larsch <nla@trustcenter.de> via PR#459)
3705 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3706 checked on reconnect on the client side, therefore session resumption
3707 could still fail with a "ssl session id is different" error. This
3708 behaviour is masked when SSL_OP_ALL is used due to
3709 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3710 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3711 followup to PR #377.
3714 *) IA-32 assembler support enhancements: unified ELF targets, support
3715 for SCO/Caldera platforms, fix for Cygwin shared build.
3718 *) Add support for FreeBSD on sparc64. As a consequence, support for
3719 FreeBSD on non-x86 processors is separate from x86 processors on
3720 the config script, much like the NetBSD support.
3721 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3723 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3725 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3728 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3729 code (06) was taken as the first octet of the session ID and the last
3730 octet was ignored consequently. As a result SSLv2 client side session
3731 caching could not have worked due to the session ID mismatch between
3733 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3737 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3738 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3742 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3743 seems that in spite of existing for more than a year, many application
3744 author have done nothing to provide the necessary callbacks, which
3745 means that this particular engine will not work properly anywhere.
3746 This is a very unfortunate situation which forces us, in the name
3747 of usability, to give the hw_ncipher.c a static lock, which is part
3749 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3750 appear in 0.9.8 or later. We EXPECT application authors to have
3751 dealt properly with this when 0.9.8 is released (unless we actually
3752 make such changes in the libcrypto locking code that changes will
3753 have to be made anyway).
3756 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3757 octets have been read, EOF or an error occurs. Without this change
3758 some truncated ASN1 structures will not produce an error.
3761 *) Disable Heimdal support, since it hasn't been fully implemented.
3762 Still give the possibility to force the use of Heimdal, but with
3763 warnings and a request that patches get sent to openssl-dev.
3766 *) Add the VC-CE target, introduce the WINCE sysname, and add
3767 INSTALL.WCE and appropriate conditionals to make it build.
3768 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3770 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3771 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3772 edit numbers of the version.
3773 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3775 *) Introduce safe string copy and catenation functions
3776 (BUF_strlcpy() and BUF_strlcat()).
3777 [Ben Laurie (CHATS) and Richard Levitte]
3779 *) Avoid using fixed-size buffers for one-line DNs.
3780 [Ben Laurie (CHATS)]
3782 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3783 resizing buffers containing secrets, and use where appropriate.
3784 [Ben Laurie (CHATS)]
3786 *) Avoid using fixed size buffers for configuration file location.
3787 [Ben Laurie (CHATS)]
3789 *) Avoid filename truncation for various CA files.
3790 [Ben Laurie (CHATS)]
3792 *) Use sizeof in preference to magic numbers.
3793 [Ben Laurie (CHATS)]
3795 *) Avoid filename truncation in cert requests.
3796 [Ben Laurie (CHATS)]
3798 *) Add assertions to check for (supposedly impossible) buffer
3800 [Ben Laurie (CHATS)]
3802 *) Don't cache truncated DNS entries in the local cache (this could
3803 potentially lead to a spoofing attack).
3804 [Ben Laurie (CHATS)]
3806 *) Fix various buffers to be large enough for hex/decimal
3807 representations in a platform independent manner.
3808 [Ben Laurie (CHATS)]
3810 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3811 resizing buffers containing secrets, and use where appropriate.
3812 [Ben Laurie (CHATS)]
3814 *) Add BIO_indent() to avoid much slightly worrying code to do
3816 [Ben Laurie (CHATS)]
3818 *) Convert sprintf()/BIO_puts() to BIO_printf().
3819 [Ben Laurie (CHATS)]
3821 *) buffer_gets() could terminate with the buffer only half
3823 [Ben Laurie (CHATS)]
3825 *) Add assertions to prevent user-supplied crypto functions from
3826 overflowing internal buffers by having large block sizes, etc.
3827 [Ben Laurie (CHATS)]
3829 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3831 [Ben Laurie (CHATS)]
3833 *) Eliminate unused copy of key in RC4.
3834 [Ben Laurie (CHATS)]
3836 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3837 [Ben Laurie (CHATS)]
3839 *) Fix off-by-one error in EGD path.
3840 [Ben Laurie (CHATS)]
3842 *) If RANDFILE path is too long, ignore instead of truncating.
3843 [Ben Laurie (CHATS)]
3845 *) Eliminate unused and incorrectly sized X.509 structure
3847 [Ben Laurie (CHATS)]
3849 *) Eliminate unused and dangerous function knumber().
3850 [Ben Laurie (CHATS)]
3852 *) Eliminate unused and dangerous structure, KSSL_ERR.
3853 [Ben Laurie (CHATS)]
3855 *) Protect against overlong session ID context length in an encoded
3856 session object. Since these are local, this does not appear to be
3858 [Ben Laurie (CHATS)]
3860 *) Change from security patch (see 0.9.6e below) that did not affect
3861 the 0.9.6 release series:
3863 Remote buffer overflow in SSL3 protocol - an attacker could
3864 supply an oversized master key in Kerberos-enabled versions.
3866 [Ben Laurie (CHATS)]
3868 *) Change the SSL kerb5 codes to match RFC 2712.
3871 *) Make -nameopt work fully for req and add -reqopt switch.
3872 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3874 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3875 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3877 *) Make sure tests can be performed even if the corresponding algorithms
3878 have been removed entirely. This was also the last step to make
3879 OpenSSL compilable with DJGPP under all reasonable conditions.
3880 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3882 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3883 to allow version independent disabling of normally unselected ciphers,
3884 which may be activated as a side-effect of selecting a single cipher.
3886 (E.g., cipher list string "RSA" enables ciphersuites that are left
3887 out of "ALL" because they do not provide symmetric encryption.
3888 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3889 [Lutz Jaenicke, Bodo Moeller]
3891 *) Add appropriate support for separate platform-dependent build
3892 directories. The recommended way to make a platform-dependent
3893 build directory is the following (tested on Linux), maybe with
3896 # Place yourself outside of the OpenSSL source tree. In
3897 # this example, the environment variable OPENSSL_SOURCE
3898 # is assumed to contain the absolute OpenSSL source directory.
3899 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3900 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3901 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3902 mkdir -p `dirname $F`
3903 ln -s $OPENSSL_SOURCE/$F $F
3906 To be absolutely sure not to disturb the source tree, a "make clean"
3907 is a good thing. If it isn't successfull, don't worry about it,
3908 it probably means the source directory is very clean.
3911 *) Make sure any ENGINE control commands make local copies of string
3912 pointers passed to them whenever necessary. Otherwise it is possible
3913 the caller may have overwritten (or deallocated) the original string
3914 data when a later ENGINE operation tries to use the stored values.
3915 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3917 *) Improve diagnostics in file reading and command-line digests.
3918 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3920 *) Add AES modes CFB and OFB to the object database. Correct an
3921 error in AES-CFB decryption.
3924 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3925 allows existing EVP_CIPHER_CTX structures to be reused after
3926 calling EVP_*Final(). This behaviour is used by encryption
3927 BIOs and some applications. This has the side effect that
3928 applications must explicitly clean up cipher contexts with
3929 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3932 *) Check the values of dna and dnb in bn_mul_recursive before calling
3933 bn_mul_comba (a non zero value means the a or b arrays do not contain
3934 n2 elements) and fallback to bn_mul_normal if either is not zero.
3937 *) Fix escaping of non-ASCII characters when using the -subj option
3938 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3941 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3942 form for "surname", serialNumber has no short form.
3943 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3944 therefore remove "mail" short name for "internet 7".
3945 The OID for unique identifiers in X509 certificates is
3946 x500UniqueIdentifier, not uniqueIdentifier.
3947 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3950 *) Add an "init" command to the ENGINE config module and auto initialize
3951 ENGINEs. Without any "init" command the ENGINE will be initialized
3952 after all ctrl commands have been executed on it. If init=1 the
3953 ENGINE is initailized at that point (ctrls before that point are run
3954 on the uninitialized ENGINE and after on the initialized one). If
3955 init=0 then the ENGINE will not be iniatialized at all.
3958 *) Fix the 'app_verify_callback' interface so that the user-defined
3959 argument is actually passed to the callback: In the
3960 SSL_CTX_set_cert_verify_callback() prototype, the callback
3961 declaration has been changed from
3964 int (*cb)(X509_STORE_CTX *,void *);
3965 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3966 i=s->ctx->app_verify_callback(&ctx)
3967 has been changed into
3968 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3970 To update applications using SSL_CTX_set_cert_verify_callback(),
3971 a dummy argument can be added to their callback functions.
3972 [D. K. Smetters <smetters@parc.xerox.com>]
3974 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3975 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3977 *) Add and OPENSSL_LOAD_CONF define which will cause
3978 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3979 This allows older applications to transparently support certain
3980 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3981 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3982 load the config file and OPENSSL_add_all_algorithms_conf() which will
3983 always load it have also been added.
3986 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3987 Adjust NIDs and EVP layer.
3988 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3990 *) Config modules support in openssl utility.
3992 Most commands now load modules from the config file,
3993 though in a few (such as version) this isn't done
3994 because it couldn't be used for anything.
3996 In the case of ca and req the config file used is
3997 the same as the utility itself: that is the -config
3998 command line option can be used to specify an
4002 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4003 use "openssl_conf" if filename is NULL use default openssl config file.
4006 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4007 config section name. Add a new flag to tolerate a missing config file
4008 and move code to CONF_modules_load_file().
4011 *) Support for crypto accelerator cards from Accelerated Encryption
4012 Processing, www.aep.ie. (Use engine 'aep')
4013 The support was copied from 0.9.6c [engine] and adapted/corrected
4014 to work with the new engine framework.
4015 [AEP Inc. and Richard Levitte]
4017 *) Support for SureWare crypto accelerator cards from Baltimore
4018 Technologies. (Use engine 'sureware')
4019 The support was copied from 0.9.6c [engine] and adapted
4020 to work with the new engine framework.
4023 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4024 make the newer ENGINE framework commands for the CHIL engine work.
4025 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4027 *) Make it possible to produce shared libraries on ReliantUNIX.
4028 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4030 *) Add the configuration target debug-linux-ppro.
4031 Make 'openssl rsa' use the general key loading routines
4032 implemented in apps.c, and make those routines able to
4033 handle the key format FORMAT_NETSCAPE and the variant
4035 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4037 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4038 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4040 *) Add -keyform to rsautl, and document -engine.
4041 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4043 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4044 BIO_R_NO_SUCH_FILE error code rather than the generic
4045 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4048 *) Add new functions
4050 ERR_peek_last_error_line
4051 ERR_peek_last_error_line_data.
4052 These are similar to
4055 ERR_peek_error_line_data,
4056 but report on the latest error recorded rather than the first one
4057 still in the error queue.
4058 [Ben Laurie, Bodo Moeller]
4060 *) default_algorithms option in ENGINE config module. This allows things
4062 default_algorithms = ALL
4063 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4066 *) Prelminary ENGINE config module.
4069 *) New experimental application configuration code.
4072 *) Change the AES code to follow the same name structure as all other
4073 symmetric ciphers, and behave the same way. Move everything to
4074 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4075 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4077 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4078 [Ben Laurie and Theo de Raadt]
4080 *) Add option to output public keys in req command.
4081 [Massimiliano Pala madwolf@openca.org]
4083 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4084 (up to about 10% better than before for P-192 and P-224).
4087 *) New functions/macros
4089 SSL_CTX_set_msg_callback(ctx, cb)
4090 SSL_CTX_set_msg_callback_arg(ctx, arg)
4091 SSL_set_msg_callback(ssl, cb)
4092 SSL_set_msg_callback_arg(ssl, arg)
4094 to request calling a callback function
4096 void cb(int write_p, int version, int content_type,
4097 const void *buf, size_t len, SSL *ssl, void *arg)
4099 whenever a protocol message has been completely received
4100 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4101 protocol version according to which the SSL library interprets
4102 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4103 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4104 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4105 specification (change_cipher_spec(20), alert(21), handshake(22)).
4106 'buf' and 'len' point to the actual message, 'ssl' to the
4107 SSL object, and 'arg' is the application-defined value set by
4108 SSL[_CTX]_set_msg_callback_arg().
4110 'openssl s_client' and 'openssl s_server' have new '-msg' options
4111 to enable a callback that displays all protocol messages.
4114 *) Change the shared library support so shared libraries are built as
4115 soon as the corresponding static library is finished, and thereby get
4116 openssl and the test programs linked against the shared library.
4117 This still only happens when the keyword "shard" has been given to
4118 the configuration scripts.
4120 NOTE: shared library support is still an experimental thing, and
4121 backward binary compatibility is still not guaranteed.
4122 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4124 *) Add support for Subject Information Access extension.
4125 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4127 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4128 additional bytes when new memory had to be allocated, not just
4129 when reusing an existing buffer.
4132 *) New command line and configuration option 'utf8' for the req command.
4133 This allows field values to be specified as UTF8 strings.
4136 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4137 runs for the former and machine-readable output for the latter.
4140 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4141 of the e-mail address in the DN (i.e., it will go into a certificate
4142 extension only). The new configuration file option 'email_in_dn = no'
4143 has the same effect.
4144 [Massimiliano Pala madwolf@openca.org]
4146 *) Change all functions with names starting with des_ to be starting
4147 with DES_ instead. Add wrappers that are compatible with libdes,
4148 but are named _ossl_old_des_*. Finally, add macros that map the
4149 des_* symbols to the corresponding _ossl_old_des_* if libdes
4150 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4151 desired, the des_* symbols will be mapped to DES_*, with one
4154 Since we provide two compatibility mappings, the user needs to
4155 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4156 compatibility is desired. The default (i.e., when that macro
4157 isn't defined) is OpenSSL 0.9.6c compatibility.
4159 There are also macros that enable and disable the support of old
4160 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4161 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4162 are defined, the default will apply: to support the old des routines.
4164 In either case, one must include openssl/des.h to get the correct
4165 definitions. Do not try to just include openssl/des_old.h, that
4168 NOTE: This is a major break of an old API into a new one. Software
4169 authors are encouraged to switch to the DES_ style functions. Some
4170 time in the future, des_old.h and the libdes compatibility functions
4171 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4172 default), and then completely removed.
4175 *) Test for certificates which contain unsupported critical extensions.
4176 If such a certificate is found during a verify operation it is
4177 rejected by default: this behaviour can be overridden by either
4178 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4179 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4180 X509_supported_extension() has also been added which returns 1 if a
4181 particular extension is supported.
4184 *) Modify the behaviour of EVP cipher functions in similar way to digests
4185 to retain compatibility with existing code.
4188 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4189 compatibility with existing code. In particular the 'ctx' parameter does
4190 not have to be to be initialized before the call to EVP_DigestInit() and
4191 it is tidied up after a call to EVP_DigestFinal(). New function
4192 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4193 EVP_MD_CTX_copy() changed to not require the destination to be
4194 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4195 requires the destination to be valid.
4197 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4198 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4201 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4202 so that complete 'Handshake' protocol structures are kept in memory
4203 instead of overwriting 'msg_type' and 'length' with 'body' data.
4206 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4207 [Massimo Santin via Richard Levitte]
4209 *) Major restructuring to the underlying ENGINE code. This includes
4210 reduction of linker bloat, separation of pure "ENGINE" manipulation
4211 (initialisation, etc) from functionality dealing with implementations
4212 of specific crypto iterfaces. This change also introduces integrated
4213 support for symmetric ciphers and digest implementations - so ENGINEs
4214 can now accelerate these by providing EVP_CIPHER and EVP_MD
4215 implementations of their own. This is detailed in crypto/engine/README
4216 as it couldn't be adequately described here. However, there are a few
4217 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4218 were changed in the original introduction of ENGINE code have now
4219 reverted back - the hooking from this code to ENGINE is now a good
4220 deal more passive and at run-time, operations deal directly with
4221 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4222 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4223 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4224 they were not being used by the framework as there is no concept of a
4225 BIGNUM_METHOD and they could not be generalised to the new
4226 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4227 ENGINE_cpy() has been removed as it cannot be consistently defined in
4231 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4234 *) Change mkdef.pl to sort symbols that get the same entry number,
4235 and make sure the automatically generated functions ERR_load_*
4236 become part of libeay.num as well.
4239 *) New function SSL_renegotiate_pending(). This returns true once
4240 renegotiation has been requested (either SSL_renegotiate() call
4241 or HelloRequest/ClientHello receveived from the peer) and becomes
4242 false once a handshake has been completed.
4243 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4244 sends a HelloRequest, but does not ensure that a handshake takes
4245 place. SSL_renegotiate_pending() is useful for checking if the
4246 client has followed the request.)
4249 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4250 By default, clients may request session resumption even during
4251 renegotiation (if session ID contexts permit); with this option,
4252 session resumption is possible only in the first handshake.
4254 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4255 more bits available for options that should not be part of
4256 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4259 *) Add some demos for certificate and certificate request creation.
4262 *) Make maximum certificate chain size accepted from the peer application
4263 settable (SSL*_get/set_max_cert_list()), as proposed by
4264 "Douglas E. Engert" <deengert@anl.gov>.
4267 *) Add support for shared libraries for Unixware-7
4268 (Boyd Lynn Gerber <gerberb@zenez.com>).
4271 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4272 be done prior to destruction. Use this to unload error strings from
4273 ENGINEs that load their own error strings. NB: This adds two new API
4274 functions to "get" and "set" this destroy handler in an ENGINE.
4277 *) Alter all existing ENGINE implementations (except "openssl" and
4278 "openbsd") to dynamically instantiate their own error strings. This
4279 makes them more flexible to be built both as statically-linked ENGINEs
4280 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4281 Also, add stub code to each that makes building them as self-contained
4282 shared-libraries easier (see README.ENGINE).
4285 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4286 implementations into applications that are completely implemented in
4287 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4288 commands that can be used to configure what shared-library to load and
4289 to control aspects of the way it is handled. Also, made an update to
4290 the README.ENGINE file that brings its information up-to-date and
4291 provides some information and instructions on the "dynamic" ENGINE
4292 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4295 *) Make it possible to unload ranges of ERR strings with a new
4296 "ERR_unload_strings" function.
4299 *) Add a copy() function to EVP_MD.
4302 *) Make EVP_MD routines take a context pointer instead of just the
4303 md_data void pointer.
4306 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4307 that the digest can only process a single chunk of data
4308 (typically because it is provided by a piece of
4309 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4310 is only going to provide a single chunk of data, and hence the
4311 framework needn't accumulate the data for oneshot drivers.
4314 *) As with "ERR", make it possible to replace the underlying "ex_data"
4315 functions. This change also alters the storage and management of global
4316 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4317 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4318 index counters. The API functions that use this state have been changed
4319 to take a "class_index" rather than pointers to the class's local STACK
4320 and counter, and there is now an API function to dynamically create new
4321 classes. This centralisation allows us to (a) plug a lot of the
4322 thread-safety problems that existed, and (b) makes it possible to clean
4323 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4324 such data would previously have always leaked in application code and
4325 workarounds were in place to make the memory debugging turn a blind eye
4326 to it. Application code that doesn't use this new function will still
4327 leak as before, but their memory debugging output will announce it now
4328 rather than letting it slide.
4330 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4331 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4332 has a return value to indicate success or failure.
4335 *) Make it possible to replace the underlying "ERR" functions such that the
4336 global state (2 LHASH tables and 2 locks) is only used by the "default"
4337 implementation. This change also adds two functions to "get" and "set"
4338 the implementation prior to it being automatically set the first time
4339 any other ERR function takes place. Ie. an application can call "get",
4340 pass the return value to a module it has just loaded, and that module
4341 can call its own "set" function using that value. This means the
4342 module's "ERR" operations will use (and modify) the error state in the
4343 application and not in its own statically linked copy of OpenSSL code.
4346 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4347 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4348 the operation, and provides a more encapsulated way for external code
4349 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4350 to use these functions rather than manually incrementing the counts.
4352 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4355 *) Add EVP test program.
4358 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4361 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4362 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4363 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4364 These allow a CRL to be built without having to access X509_CRL fields
4365 directly. Modify 'ca' application to use new functions.
4368 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4369 bug workarounds. Rollback attack detection is a security feature.
4370 The problem will only arise on OpenSSL servers when TLSv1 is not
4371 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4372 Software authors not wanting to support TLSv1 will have special reasons
4373 for their choice and can explicitly enable this option.
4374 [Bodo Moeller, Lutz Jaenicke]
4376 *) Rationalise EVP so it can be extended: don't include a union of
4377 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4378 (similar to those existing for EVP_CIPHER_CTX).
4383 EVP_MD_CTX_init(&md); /* new function call */
4384 EVP_DigestInit(&md, EVP_sha1());
4385 EVP_DigestUpdate(&md, in, len);
4386 EVP_DigestFinal(&md, out, NULL);
4387 EVP_MD_CTX_cleanup(&md); /* new function call */
4391 *) Make DES key schedule conform to the usual scheme, as well as
4392 correcting its structure. This means that calls to DES functions
4393 now have to pass a pointer to a des_key_schedule instead of a
4394 plain des_key_schedule (which was actually always a pointer
4397 des_key_schedule ks;
4399 des_set_key_checked(..., &ks);
4400 des_ncbc_encrypt(..., &ks, ...);
4402 (Note that a later change renames 'des_...' into 'DES_...'.)
4405 *) Initial reduction of linker bloat: the use of some functions, such as
4406 PEM causes large amounts of unused functions to be linked in due to
4407 poor organisation. For example pem_all.c contains every PEM function
4408 which has a knock on effect of linking in large amounts of (unused)
4409 ASN1 code. Grouping together similar functions and splitting unrelated
4410 functions prevents this.
4413 *) Cleanup of EVP macros.
4416 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4417 correct _ecb suffix.
4420 *) Add initial OCSP responder support to ocsp application. The
4421 revocation information is handled using the text based index
4422 use by the ca application. The responder can either handle
4423 requests generated internally, supplied in files (for example
4424 via a CGI script) or using an internal minimal server.
4427 *) Add configuration choices to get zlib compression for TLS.
4430 *) Changes to Kerberos SSL for RFC 2712 compliance:
4431 1. Implemented real KerberosWrapper, instead of just using
4432 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4433 2. Implemented optional authenticator field of KerberosWrapper.
4435 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4436 and authenticator structs; see crypto/krb5/.
4438 Generalized Kerberos calls to support multiple Kerberos libraries.
4439 [Vern Staats <staatsvr@asc.hpc.mil>,
4440 Jeffrey Altman <jaltman@columbia.edu>
4441 via Richard Levitte]
4443 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4444 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4445 values for each of the key sizes rather than having just
4446 parameters (and 'speed' generating keys each time).
4449 *) Speed up EVP routines.
4452 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4453 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4454 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4455 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4457 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4458 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4459 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4462 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4464 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4467 *) Added the OS2-EMX target.
4468 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4470 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4471 to support NCONF routines in extension code. New function CONF_set_nconf()
4472 to allow functions which take an NCONF to also handle the old LHASH
4473 structure: this means that the old CONF compatible routines can be
4474 retained (in particular wrt extensions) without having to duplicate the
4475 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4478 *) Enhance the general user interface with mechanisms for inner control
4479 and with possibilities to have yes/no kind of prompts.
4482 *) Change all calls to low level digest routines in the library and
4483 applications to use EVP. Add missing calls to HMAC_cleanup() and
4484 don't assume HMAC_CTX can be copied using memcpy().
4485 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4487 *) Add the possibility to control engines through control names but with
4488 arbitrary arguments instead of just a string.
4489 Change the key loaders to take a UI_METHOD instead of a callback
4490 function pointer. NOTE: this breaks binary compatibility with earlier
4491 versions of OpenSSL [engine].
4492 Adapt the nCipher code for these new conditions and add a card insertion
4496 *) Enhance the general user interface with mechanisms to better support
4497 dialog box interfaces, application-defined prompts, the possibility
4498 to use defaults (for example default passwords from somewhere else)
4499 and interrupts/cancellations.
4502 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4503 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4506 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4507 tidy up some unnecessarily weird code in 'sk_new()').
4508 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4510 *) Change the key loading routines for ENGINEs to use the same kind
4511 callback (pem_password_cb) as all other routines that need this
4515 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4516 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4517 than this minimum value is recommended.
4520 *) New random seeder for OpenVMS, using the system process statistics
4521 that are easily reachable.
4524 *) Windows apparently can't transparently handle global
4525 variables defined in DLLs. Initialisations such as:
4527 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4529 wont compile. This is used by the any applications that need to
4530 declare their own ASN1 modules. This was fixed by adding the option
4531 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4532 needed for static libraries under Win32.
4535 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4536 setting of purpose and trust fields. New X509_STORE trust and
4537 purpose functions and tidy up setting in other SSL functions.
4540 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4541 structure. These are inherited by X509_STORE_CTX when it is
4542 initialised. This allows various defaults to be set in the
4543 X509_STORE structure (such as flags for CRL checking and custom
4544 purpose or trust settings) for functions which only use X509_STORE_CTX
4545 internally such as S/MIME.
4547 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4548 trust settings if they are not set in X509_STORE. This allows X509_STORE
4549 purposes and trust (in S/MIME for example) to override any set by default.
4551 Add command line options for CRL checking to smime, s_client and s_server
4555 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4556 are set then the CRL is looked up in the X509_STORE structure and
4557 its validity and signature checked, then if the certificate is found
4558 in the CRL the verify fails with a revoked error.
4560 Various new CRL related callbacks added to X509_STORE_CTX structure.
4562 Command line options added to 'verify' application to support this.
4564 This needs some additional work, such as being able to handle multiple
4565 CRLs with different times, extension based lookup (rather than just
4566 by subject name) and ultimately more complete V2 CRL extension
4570 *) Add a general user interface API (crypto/ui/). This is designed
4571 to replace things like des_read_password and friends (backward
4572 compatibility functions using this new API are provided).
4573 The purpose is to remove prompting functions from the DES code
4574 section as well as provide for prompting through dialog boxes in
4575 a window system and the like.
4578 *) Add "ex_data" support to ENGINE so implementations can add state at a
4579 per-structure level rather than having to store it globally.
4582 *) Make it possible for ENGINE structures to be copied when retrieved by
4583 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4584 This causes the "original" ENGINE structure to act like a template,
4585 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4586 operational state can be localised to each ENGINE structure, despite the
4587 fact they all share the same "methods". New ENGINE structures returned in
4588 this case have no functional references and the return value is the single
4589 structural reference. This matches the single structural reference returned
4590 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4594 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4595 needs to match any other type at all we need to manually clear the
4599 *) Changes to the "openssl engine" utility to include;
4600 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4601 about an ENGINE's available control commands.
4602 - executing control commands from command line arguments using the
4603 '-pre' and '-post' switches. '-post' is only used if '-t' is
4604 specified and the ENGINE is successfully initialised. The syntax for
4605 the individual commands are colon-separated, for example;
4606 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4609 *) New dynamic control command support for ENGINEs. ENGINEs can now
4610 declare their own commands (numbers), names (strings), descriptions,
4611 and input types for run-time discovery by calling applications. A
4612 subset of these commands are implicitly classed as "executable"
4613 depending on their input type, and only these can be invoked through
4614 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4615 can be based on user input, config files, etc). The distinction is
4616 that "executable" commands cannot return anything other than a boolean
4617 result and can only support numeric or string input, whereas some
4618 discoverable commands may only be for direct use through
4619 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4620 pointers, or other custom uses. The "executable" commands are to
4621 support parameterisations of ENGINE behaviour that can be
4622 unambiguously defined by ENGINEs and used consistently across any
4623 OpenSSL-based application. Commands have been added to all the
4624 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4625 control over shared-library paths without source code alterations.
4628 *) Changed all ENGINE implementations to dynamically allocate their
4629 ENGINEs rather than declaring them statically. Apart from this being
4630 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4631 this also allows the implementations to compile without using the
4632 internal engine_int.h header.
4635 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4636 'const' value. Any code that should be able to modify a RAND_METHOD
4637 should already have non-const pointers to it (ie. they should only
4638 modify their own ones).
4641 *) Made a variety of little tweaks to the ENGINE code.
4642 - "atalla" and "ubsec" string definitions were moved from header files
4643 to C code. "nuron" string definitions were placed in variables
4644 rather than hard-coded - allowing parameterisation of these values
4645 later on via ctrl() commands.
4646 - Removed unused "#if 0"'d code.
4647 - Fixed engine list iteration code so it uses ENGINE_free() to release
4648 structural references.
4649 - Constified the RAND_METHOD element of ENGINE structures.
4650 - Constified various get/set functions as appropriate and added
4651 missing functions (including a catch-all ENGINE_cpy that duplicates
4652 all ENGINE values onto a new ENGINE except reference counts/state).
4653 - Removed NULL parameter checks in get/set functions. Setting a method
4654 or function to NULL is a way of cancelling out a previously set
4655 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4656 and doesn't justify the extra error symbols and code.
4657 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4658 flags from engine_int.h to engine.h.
4659 - Changed prototypes for ENGINE handler functions (init(), finish(),
4660 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4663 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4664 to the algorithm using long division. The binary algorithm can be
4665 used only if the modulus is odd. On 32-bit systems, it is faster
4666 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4667 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4668 up to 450 bits. In 64-bit environments, the binary algorithm
4669 appears to be advantageous for much longer moduli; here we use it
4670 for moduli up to 2048 bits.
4673 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4674 could not support the combine flag in choice fields.
4677 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4678 extensions from a certificate request to the certificate.
4681 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4682 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4683 file: this allows the display of the certificate about to be
4684 signed to be customised, to allow certain fields to be included
4685 or excluded and extension details. The old system didn't display
4686 multicharacter strings properly, omitted fields not in the policy
4687 and couldn't display additional details such as extensions.
4690 *) Function EC_POINTs_mul for multiple scalar multiplication
4691 of an arbitrary number of elliptic curve points
4692 \sum scalars[i]*points[i],
4693 optionally including the generator defined for the EC_GROUP:
4694 scalar*generator + \sum scalars[i]*points[i].
4696 EC_POINT_mul is a simple wrapper function for the typical case
4697 that the point list has just one item (besides the optional
4701 *) First EC_METHODs for curves over GF(p):
4703 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4704 operations and provides various method functions that can also
4705 operate with faster implementations of modular arithmetic.
4707 EC_GFp_mont_method() reuses most functions that are part of
4708 EC_GFp_simple_method, but uses Montgomery arithmetic.
4710 [Bodo Moeller; point addition and point doubling
4711 implementation directly derived from source code provided by
4712 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4714 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4715 crypto/ec/ec_lib.c):
4717 Curves are EC_GROUP objects (with an optional group generator)
4718 based on EC_METHODs that are built into the library.
4720 Points are EC_POINT objects based on EC_GROUP objects.
4722 Most of the framework would be able to handle curves over arbitrary
4723 finite fields, but as there are no obvious types for fields other
4724 than GF(p), some functions are limited to that for now.
4727 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4728 that the file contains a complete HTTP response.
4731 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4732 change the def and num file printf format specifier from "%-40sXXX"
4733 to "%-39s XXX". The latter will always guarantee a space after the
4734 field while the former will cause them to run together if the field
4735 is 40 of more characters long.
4738 *) Constify the cipher and digest 'method' functions and structures
4739 and modify related functions to take constant EVP_MD and EVP_CIPHER
4743 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4744 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4747 *) Modify EVP_Digest*() routines so they now return values. Although the
4748 internal software routines can never fail additional hardware versions
4752 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4754 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4755 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4758 ERR_R_NESTED_ASN1_ERROR
4760 ERR_R_MISSING_ASN1_EOS
4761 were 4 .. 9, conflicting with
4762 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4764 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4765 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4767 Add new error code 'ERR_R_INTERNAL_ERROR'.
4770 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4774 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4775 sets the subject name for a new request or supersedes the
4776 subject name in a given request. Formats that can be parsed are
4777 'CN=Some Name, OU=myOU, C=IT'
4779 'CN=Some Name/OU=myOU/C=IT'.
4781 Add options '-batch' and '-verbose' to 'openssl req'.
4782 [Massimiliano Pala <madwolf@hackmasters.net>]
4784 *) Introduce the possibility to access global variables through
4785 functions on platform were that's the best way to handle exporting
4786 global variables in shared libraries. To enable this functionality,
4787 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4788 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4789 is normally done by Configure or something similar).
4791 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4792 in the source file (foo.c) like this:
4794 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4795 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4797 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4798 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4800 OPENSSL_DECLARE_GLOBAL(int,foo);
4801 #define foo OPENSSL_GLOBAL_REF(foo)
4802 OPENSSL_DECLARE_GLOBAL(double,bar);
4803 #define bar OPENSSL_GLOBAL_REF(bar)
4805 The #defines are very important, and therefore so is including the
4806 header file everywhere where the defined globals are used.
4808 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4809 of ASN.1 items, but that structure is a bit different.
4811 The largest change is in util/mkdef.pl which has been enhanced with
4812 better and easier to understand logic to choose which symbols should
4813 go into the Windows .def files as well as a number of fixes and code
4814 cleanup (among others, algorithm keywords are now sorted
4815 lexicographically to avoid constant rewrites).
4818 *) In BN_div() keep a copy of the sign of 'num' before writing the
4819 result to 'rm' because if rm==num the value will be overwritten
4820 and produce the wrong result if 'num' is negative: this caused
4821 problems with BN_mod() and BN_nnmod().
4824 *) Function OCSP_request_verify(). This checks the signature on an
4825 OCSP request and verifies the signer certificate. The signer
4826 certificate is just checked for a generic purpose and OCSP request
4830 *) Add OCSP_check_validity() function to check the validity of OCSP
4831 responses. OCSP responses are prepared in real time and may only
4832 be a few seconds old. Simply checking that the current time lies
4833 between thisUpdate and nextUpdate max reject otherwise valid responses
4834 caused by either OCSP responder or client clock inaccuracy. Instead
4835 we allow thisUpdate and nextUpdate to fall within a certain period of
4836 the current time. The age of the response can also optionally be
4837 checked. Two new options -validity_period and -status_age added to
4841 *) If signature or public key algorithm is unrecognized print out its
4842 OID rather that just UNKNOWN.
4845 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4846 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4847 ID to be generated from the issuer certificate alone which can then be
4848 passed to OCSP_id_issuer_cmp().
4851 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4852 ASN1 modules to export functions returning ASN1_ITEM pointers
4853 instead of the ASN1_ITEM structures themselves. This adds several
4854 new macros which allow the underlying ASN1 function/structure to
4855 be accessed transparently. As a result code should not use ASN1_ITEM
4856 references directly (such as &X509_it) but instead use the relevant
4857 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4858 use of the new ASN1 code on platforms where exporting structures
4859 is problematical (for example in shared libraries) but exporting
4860 functions returning pointers to structures is not.
4863 *) Add support for overriding the generation of SSL/TLS session IDs.
4864 These callbacks can be registered either in an SSL_CTX or per SSL.
4865 The purpose of this is to allow applications to control, if they wish,
4866 the arbitrary values chosen for use as session IDs, particularly as it
4867 can be useful for session caching in multiple-server environments. A
4868 command-line switch for testing this (and any client code that wishes
4869 to use such a feature) has been added to "s_server".
4870 [Geoff Thorpe, Lutz Jaenicke]
4872 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4873 of the form '#if defined(...) || defined(...) || ...' and
4874 '#if !defined(...) && !defined(...) && ...'. This also avoids
4875 the growing number of special cases it was previously handling.
4878 *) Make all configuration macros available for application by making
4879 sure they are available in opensslconf.h, by giving them names starting
4880 with "OPENSSL_" to avoid conflicts with other packages and by making
4881 sure e_os2.h will cover all platform-specific cases together with
4883 Additionally, it is now possible to define configuration/platform-
4884 specific names (called "system identities"). In the C code, these
4885 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4886 macro with the name beginning with "OPENSSL_SYS_", which is determined
4887 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4891 *) New option -set_serial to 'req' and 'x509' this allows the serial
4892 number to use to be specified on the command line. Previously self
4893 signed certificates were hard coded with serial number 0 and the
4894 CA options of 'x509' had to use a serial number in a file which was
4898 *) New options to 'ca' utility to support V2 CRL entry extensions.
4899 Currently CRL reason, invalidity date and hold instruction are
4900 supported. Add new CRL extensions to V3 code and some new objects.
4903 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4904 disable standard block padding (aka PKCS#5 padding) in the EVP
4905 API, which was previously mandatory. This means that the data is
4906 not padded in any way and so the total length much be a multiple
4907 of the block size, otherwise an error occurs.
4910 *) Initial (incomplete) OCSP SSL support.
4913 *) New function OCSP_parse_url(). This splits up a URL into its host,
4914 port and path components: primarily to parse OCSP URLs. New -url
4915 option to ocsp utility.
4918 *) New nonce behavior. The return value of OCSP_check_nonce() now
4919 reflects the various checks performed. Applications can decide
4920 whether to tolerate certain situations such as an absent nonce
4921 in a response when one was present in a request: the ocsp application
4922 just prints out a warning. New function OCSP_add1_basic_nonce()
4923 this is to allow responders to include a nonce in a response even if
4924 the request is nonce-less.
4927 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4928 skipped when using openssl x509 multiple times on a single input file,
4929 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4932 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4933 set string type: to handle setting ASN1_TIME structures. Fix ca
4934 utility to correctly initialize revocation date of CRLs.
4937 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4938 the clients preferred ciphersuites and rather use its own preferences.
4939 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4940 Internet Explorer by ensuring unchanged hash method during stepup.
4941 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4944 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4945 to aes and add a new 'exist' option to print out symbols that don't
4949 *) Additional options to ocsp utility to allow flags to be set and
4950 additional certificates supplied.
4953 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4954 OCSP client a number of certificate to only verify the response
4958 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4959 handle the new API. Currently only ECB, CBC modes supported. Add new
4962 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4963 Encryption Standard (AES) Ciphersuites for Transport Layer
4964 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4965 not enabled by default and were not part of the "ALL" ciphersuite
4966 alias because they were not yet official; they could be
4967 explicitly requested by specifying the "AESdraft" ciphersuite
4968 group alias. In the final release of OpenSSL 0.9.7, the group
4969 alias is called "AES" and is part of "ALL".)
4970 [Ben Laurie, Steve Henson, Bodo Moeller]
4972 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4973 request to response.
4976 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4977 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4978 extract information from a certificate request. OCSP_response_create()
4979 creates a response and optionally adds a basic response structure.
4980 OCSP_basic_add1_status() adds a complete single response to a basic
4981 response and returns the OCSP_SINGLERESP structure just added (to allow
4982 extensions to be included for example). OCSP_basic_add1_cert() adds a
4983 certificate to a basic response and OCSP_basic_sign() signs a basic
4984 response with various flags. New helper functions ASN1_TIME_check()
4985 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4986 (converts ASN1_TIME to GeneralizedTime).
4989 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4990 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4991 structure from a certificate. X509_pubkey_digest() digests the public_key
4992 contents: this is used in various key identifiers.
4995 *) Make sk_sort() tolerate a NULL argument.
4996 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4998 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4999 passed by the function are trusted implicitly. If any of them signed the
5000 response then it is assumed to be valid and is not verified.
5003 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5004 to data. This was previously part of the PKCS7 ASN1 code. This
5005 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5006 [Steve Henson, reported by Kenneth R. Robinette
5007 <support@securenetterm.com>]
5009 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5010 routines: without these tracing memory leaks is very painful.
5011 Fix leaks in PKCS12 and PKCS7 routines.
5014 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5015 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5016 effectively meant GeneralizedTime would never be used. Now it
5017 is initialised to -1 but X509_time_adj() now has to check the value
5018 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5019 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5020 [Steve Henson, reported by Kenneth R. Robinette
5021 <support@securenetterm.com>]
5023 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5024 result in a zero length in the ASN1_INTEGER structure which was
5025 not consistent with the structure when d2i_ASN1_INTEGER() was used
5026 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5027 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5028 where it did not print out a minus for negative ASN1_INTEGER.
5031 *) Add summary printout to ocsp utility. The various functions which
5032 convert status values to strings have been renamed to:
5033 OCSP_response_status_str(), OCSP_cert_status_str() and
5034 OCSP_crl_reason_str() and are no longer static. New options
5035 to verify nonce values and to disable verification. OCSP response
5036 printout format cleaned up.
5039 *) Add additional OCSP certificate checks. These are those specified
5040 in RFC2560. This consists of two separate checks: the CA of the
5041 certificate being checked must either be the OCSP signer certificate
5042 or the issuer of the OCSP signer certificate. In the latter case the
5043 OCSP signer certificate must contain the OCSP signing extended key
5044 usage. This check is performed by attempting to match the OCSP
5045 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5046 in the OCSP_CERTID structures of the response.
5049 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5050 and related routines. This uses the standard OpenSSL certificate
5051 verify routines to perform initial checks (just CA validity) and
5052 to obtain the certificate chain. Then additional checks will be
5053 performed on the chain. Currently the root CA is checked to see
5054 if it is explicitly trusted for OCSP signing. This is used to set
5055 a root CA as a global signing root: that is any certificate that
5056 chains to that CA is an acceptable OCSP signing certificate.
5059 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5060 extensions from a separate configuration file.
5061 As when reading extensions from the main configuration file,
5062 the '-extensions ...' option may be used for specifying the
5064 [Massimiliano Pala <madwolf@comune.modena.it>]
5066 *) New OCSP utility. Allows OCSP requests to be generated or
5067 read. The request can be sent to a responder and the output
5068 parsed, outputed or printed in text form. Not complete yet:
5069 still needs to check the OCSP response validity.
5072 *) New subcommands for 'openssl ca':
5073 'openssl ca -status <serial>' prints the status of the cert with
5074 the given serial number (according to the index file).
5075 'openssl ca -updatedb' updates the expiry status of certificates
5077 [Massimiliano Pala <madwolf@comune.modena.it>]
5079 *) New '-newreq-nodes' command option to CA.pl. This is like
5080 '-newreq', but calls 'openssl req' with the '-nodes' option
5081 so that the resulting key is not encrypted.
5082 [Damien Miller <djm@mindrot.org>]
5084 *) New configuration for the GNU Hurd.
5085 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5087 *) Initial code to implement OCSP basic response verify. This
5088 is currently incomplete. Currently just finds the signer's
5089 certificate and verifies the signature on the response.
5092 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5093 value of OPENSSLDIR. This is available via the new '-d' option
5094 to 'openssl version', and is also included in 'openssl version -a'.
5097 *) Allowing defining memory allocation callbacks that will be given
5098 file name and line number information in additional arguments
5099 (a const char* and an int). The basic functionality remains, as
5100 well as the original possibility to just replace malloc(),
5101 realloc() and free() by functions that do not know about these
5102 additional arguments. To register and find out the current
5103 settings for extended allocation functions, the following
5104 functions are provided:
5106 CRYPTO_set_mem_ex_functions
5107 CRYPTO_set_locked_mem_ex_functions
5108 CRYPTO_get_mem_ex_functions
5109 CRYPTO_get_locked_mem_ex_functions
5111 These work the same way as CRYPTO_set_mem_functions and friends.
5112 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5113 extended allocation function is enabled.
5114 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5115 a conventional allocation function is enabled.
5116 [Richard Levitte, Bodo Moeller]
5118 *) Finish off removing the remaining LHASH function pointer casts.
5119 There should no longer be any prototype-casting required when using
5120 the LHASH abstraction, and any casts that remain are "bugs". See
5121 the callback types and macros at the head of lhash.h for details
5122 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5125 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5126 If /dev/[u]random devices are not available or do not return enough
5127 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5129 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5130 /etc/entropy will be queried once each in this sequence, quering stops
5131 when enough entropy was collected without querying more sockets.
5134 *) Change the Unix RAND_poll() variant to be able to poll several
5135 random devices, as specified by DEVRANDOM, until a sufficient amount
5136 of data has been collected. We spend at most 10 ms on each file
5137 (select timeout) and read in non-blocking mode. DEVRANDOM now
5138 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5139 (previously it was just the string "/dev/urandom"), so on typical
5140 platforms the 10 ms delay will never occur.
5141 Also separate out the Unix variant to its own file, rand_unix.c.
5142 For VMS, there's a currently-empty rand_vms.c.
5145 *) Move OCSP client related routines to ocsp_cl.c. These
5146 provide utility functions which an application needing
5147 to issue a request to an OCSP responder and analyse the
5148 response will typically need: as opposed to those which an
5149 OCSP responder itself would need which will be added later.
5151 OCSP_request_sign() signs an OCSP request with an API similar
5152 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5153 response. OCSP_response_get1_basic() extracts basic response
5154 from response. OCSP_resp_find_status(): finds and extracts status
5155 information from an OCSP_CERTID structure (which will be created
5156 when the request structure is built). These are built from lower
5157 level functions which work on OCSP_SINGLERESP structures but
5158 wont normally be used unless the application wishes to examine
5159 extensions in the OCSP response for example.
5161 Replace nonce routines with a pair of functions.
5162 OCSP_request_add1_nonce() adds a nonce value and optionally
5163 generates a random value. OCSP_check_nonce() checks the
5164 validity of the nonce in an OCSP response.
5167 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5168 This doesn't copy the supplied OCSP_CERTID and avoids the
5169 need to free up the newly created id. Change return type
5170 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5171 This can then be used to add extensions to the request.
5172 Deleted OCSP_request_new(), since most of its functionality
5173 is now in OCSP_REQUEST_new() (and the case insensitive name
5174 clash) apart from the ability to set the request name which
5175 will be added elsewhere.
5178 *) Update OCSP API. Remove obsolete extensions argument from
5179 various functions. Extensions are now handled using the new
5180 OCSP extension code. New simple OCSP HTTP function which
5181 can be used to send requests and parse the response.
5184 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5185 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5186 uses the special reorder version of SET OF to sort the attributes
5187 and reorder them to match the encoded order. This resolves a long
5188 standing problem: a verify on a PKCS7 structure just after signing
5189 it used to fail because the attribute order did not match the
5190 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5191 it uses the received order. This is necessary to tolerate some broken
5192 software that does not order SET OF. This is handled by encoding
5193 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5194 to produce the required SET OF.
5197 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5198 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5199 files to get correct declarations of the ASN.1 item variables.
5202 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5203 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5204 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5205 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5206 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5207 ASN1_ITEM and no wrapper functions.
5210 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5211 replace the old function pointer based I/O routines. Change most of
5212 the *_d2i_bio() and *_d2i_fp() functions to use these.
5215 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5216 lines, recognice more "algorithms" that can be deselected, and make
5217 it complain about algorithm deselection that isn't recognised.
5220 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5221 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5222 to use new functions. Add NO_ASN1_OLD which can be set to remove
5223 some old style ASN1 functions: this can be used to determine if old
5224 code will still work when these eventually go away.
5227 *) New extension functions for OCSP structures, these follow the
5228 same conventions as certificates and CRLs.
5231 *) New function X509V3_add1_i2d(). This automatically encodes and
5232 adds an extension. Its behaviour can be customised with various
5233 flags to append, replace or delete. Various wrappers added for
5234 certifcates and CRLs.
5237 *) Fix to avoid calling the underlying ASN1 print routine when
5238 an extension cannot be parsed. Correct a typo in the
5239 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5242 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5243 entries for variables.
5246 *) Add functionality to apps/openssl.c for detecting locking
5247 problems: As the program is single-threaded, all we have
5248 to do is register a locking callback using an array for
5249 storing which locks are currently held by the program.
5252 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5253 SSL_get_ex_data_X509_STORE_idx(), which is used in
5254 ssl_verify_cert_chain() and thus can be called at any time
5255 during TLS/SSL handshakes so that thread-safety is essential.
5256 Unfortunately, the ex_data design is not at all suited
5257 for multi-threaded use, so it probably should be abolished.
5260 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5261 [Broadcom, tweaked and integrated by Geoff Thorpe]
5263 *) Move common extension printing code to new function
5264 X509V3_print_extensions(). Reorganise OCSP print routines and
5265 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5268 *) New function X509_signature_print() to remove duplication in some
5272 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5273 set (this was treated exactly the same as SET OF previously). This
5274 is used to reorder the STACK representing the structure to match the
5275 encoding. This will be used to get round a problem where a PKCS7
5276 structure which was signed could not be verified because the STACK
5277 order did not reflect the encoded order.
5280 *) Reimplement the OCSP ASN1 module using the new code.
5283 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5284 for its ASN1 operations. The old style function pointers still exist
5285 for now but they will eventually go away.
5288 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5289 completely replaces the old ASN1 functionality with a table driven
5290 encoder and decoder which interprets an ASN1_ITEM structure describing
5291 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5292 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5293 has also been converted to the new form.
5296 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5297 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5298 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5299 for negative moduli.
5302 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5303 of not touching the result's sign bit.
5306 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5310 *) Changed the LHASH code to use prototypes for callbacks, and created
5311 macros to declare and implement thin (optionally static) functions
5312 that provide type-safety and avoid function pointer casting for the
5313 type-specific callbacks.
5316 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5318 [Veers Staats <staatsvr@asc.hpc.mil>,
5319 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5321 *) Reformat the FAQ so the different questions and answers can be divided
5322 in sections depending on the subject.
5325 *) Have the zlib compression code load ZLIB.DLL dynamically under
5329 *) New function BN_mod_sqrt for computing square roots modulo a prime
5330 (using the probabilistic Tonelli-Shanks algorithm unless
5331 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5332 be handled deterministically).
5333 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5335 *) Make BN_mod_inverse faster by explicitly handling small quotients
5336 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5337 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5340 *) New function BN_kronecker.
5343 *) Fix BN_gcd so that it works on negative inputs; the result is
5344 positive unless both parameters are zero.
5345 Previously something reasonably close to an infinite loop was
5346 possible because numbers could be growing instead of shrinking
5347 in the implementation of Euclid's algorithm.
5350 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5351 sign of the number in question.
5353 Fix BN_is_word(a,w) to work correctly for w == 0.
5355 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5356 because its test if the absolute value of 'a' equals 'w'.
5357 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5358 it exists mostly for use in the implementations of BN_is_zero(),
5359 BN_is_one(), and BN_is_word().
5362 *) New function BN_swap.
5365 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5366 the exponentiation functions are more likely to produce reasonable
5367 results on negative inputs.
5370 *) Change BN_mod_mul so that the result is always non-negative.
5371 Previously, it could be negative if one of the factors was negative;
5372 I don't think anyone really wanted that behaviour.
5375 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5376 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5377 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5378 and add new functions:
5387 BN_mod_lshift1_quick
5391 These functions always generate non-negative results.
5393 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5394 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5396 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5397 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5398 be reduced modulo m.
5399 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5402 The following entry accidentily appeared in the CHANGES file
5403 distributed with OpenSSL 0.9.7. The modifications described in
5404 it do *not* apply to OpenSSL 0.9.7.
5406 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5407 was actually never needed) and in BN_mul(). The removal in BN_mul()
5408 required a small change in bn_mul_part_recursive() and the addition
5409 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5410 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5411 bn_sub_words() and bn_add_words() except they take arrays with
5416 *) In 'openssl passwd', verify passwords read from the terminal
5417 unless the '-salt' option is used (which usually means that
5418 verification would just waste user's time since the resulting
5419 hash is going to be compared with some given password hash)
5420 or the new '-noverify' option is used.
5422 This is an incompatible change, but it does not affect
5423 non-interactive use of 'openssl passwd' (passwords on the command
5424 line, '-stdin' option, '-in ...' option) and thus should not
5428 *) Remove all references to RSAref, since there's no more need for it.
5431 *) Make DSO load along a path given through an environment variable
5432 (SHLIB_PATH) with shl_load().
5435 *) Constify the ENGINE code as a result of BIGNUM constification.
5436 Also constify the RSA code and most things related to it. In a
5437 few places, most notable in the depth of the ASN.1 code, ugly
5438 casts back to non-const were required (to be solved at a later
5442 *) Make it so the openssl application has all engines loaded by default.
5445 *) Constify the BIGNUM routines a little more.
5448 *) Add the following functions:
5450 ENGINE_load_cswift()
5452 ENGINE_load_atalla()
5454 ENGINE_load_builtin_engines()
5456 That way, an application can itself choose if external engines that
5457 are built-in in OpenSSL shall ever be used or not. The benefit is
5458 that applications won't have to be linked with libdl or other dso
5459 libraries unless it's really needed.
5461 Changed 'openssl engine' to load all engines on demand.
5462 Changed the engine header files to avoid the duplication of some
5463 declarations (they differed!).
5466 *) 'openssl engine' can now list capabilities.
5469 *) Better error reporting in 'openssl engine'.
5472 *) Never call load_dh_param(NULL) in s_server.
5475 *) Add engine application. It can currently list engines by name and
5476 identity, and test if they are actually available.
5479 *) Improve RPM specification file by forcing symbolic linking and making
5480 sure the installed documentation is also owned by root.root.
5481 [Damien Miller <djm@mindrot.org>]
5483 *) Give the OpenSSL applications more possibilities to make use of
5484 keys (public as well as private) handled by engines.
5487 *) Add OCSP code that comes from CertCo.
5490 *) Add VMS support for the Rijndael code.
5493 *) Added untested support for Nuron crypto accelerator.
5496 *) Add support for external cryptographic devices. This code was
5497 previously distributed separately as the "engine" branch.
5498 [Geoff Thorpe, Richard Levitte]
5500 *) Rework the filename-translation in the DSO code. It is now possible to
5501 have far greater control over how a "name" is turned into a filename
5502 depending on the operating environment and any oddities about the
5503 different shared library filenames on each system.
5506 *) Support threads on FreeBSD-elf in Configure.
5509 *) Fix for SHA1 assembly problem with MASM: it produces
5510 warnings about corrupt line number information when assembling
5511 with debugging information. This is caused by the overlapping
5513 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5516 NCONF_get_number() has no error checking at all. As a replacement,
5517 NCONF_get_number_e() is defined (_e for "error checking") and is
5518 promoted strongly. The old NCONF_get_number is kept around for
5519 binary backward compatibility.
5520 Make it possible for methods to load from something other than a BIO,
5521 by providing a function pointer that is given a name instead of a BIO.
5522 For example, this could be used to load configuration data from an
5526 *) Fix for non blocking accept BIOs. Added new I/O special reason
5527 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5528 with non blocking I/O was not possible because no retry code was
5529 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5533 *) Added the beginnings of Rijndael support.
5536 *) Fix for bug in DirectoryString mask setting. Add support for
5537 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5538 to allow certificate printing to more controllable, additional
5539 'certopt' option to 'x509' to allow new printing options to be
5543 *) Clean old EAY MD5 hack from e_os.h.
5546 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5548 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5549 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5550 [Joe Orton, Steve Henson]
5552 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5554 *) Fix additional bug revealed by the NISCC test suite:
5556 Stop bug triggering large recursion when presented with
5557 certain ASN.1 tags (CVE-2003-0851)
5560 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5562 *) Fix various bugs revealed by running the NISCC test suite:
5564 Stop out of bounds reads in the ASN1 code when presented with
5565 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5567 If verify callback ignores invalid public key errors don't try to check
5568 certificate signature with the NULL public key.
5572 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5573 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5577 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5578 extra data after the compression methods not only for TLS 1.0
5579 but also for SSL 3.0 (as required by the specification).
5580 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5582 *) Change X509_certificate_type() to mark the key as exported/exportable
5583 when it's 512 *bits* long, not 512 bytes.
5586 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5588 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5589 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5590 a protocol version number mismatch like a decryption error
5591 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5594 *) Turn on RSA blinding by default in the default implementation
5595 to avoid a timing attack. Applications that don't want it can call
5596 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5597 They would be ill-advised to do so in most cases.
5598 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5600 *) Change RSA blinding code so that it works when the PRNG is not
5601 seeded (in this case, the secret RSA exponent is abused as
5602 an unpredictable seed -- if it is not unpredictable, there
5603 is no point in blinding anyway). Make RSA blinding thread-safe
5604 by remembering the creator's thread ID in rsa->blinding and
5605 having all other threads use local one-time blinding factors
5606 (this requires more computation than sharing rsa->blinding, but
5607 avoids excessive locking; and if an RSA object is not shared
5608 between threads, blinding will still be very fast).
5611 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5613 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5614 via timing by performing a MAC computation even if incorrrect
5615 block cipher padding has been found. This is a countermeasure
5616 against active attacks where the attacker has to distinguish
5617 between bad padding and a MAC verification error. (CVE-2003-0078)
5619 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5620 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5621 Martin Vuagnoux (EPFL, Ilion)]
5623 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5625 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5626 memory from it's contents. This is done with a counter that will
5627 place alternating values in each byte. This can be used to solve
5628 two issues: 1) the removal of calls to memset() by highly optimizing
5629 compilers, and 2) cleansing with other values than 0, since those can
5630 be read through on certain media, for example a swap space on disk.
5633 *) Bugfix: client side session caching did not work with external caching,
5634 because the session->cipher setting was not restored when reloading
5635 from the external cache. This problem was masked, when
5636 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5637 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5640 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5641 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5642 [Zeev Lieber <zeev-l@yahoo.com>]
5644 *) Undo an undocumented change introduced in 0.9.6e which caused
5645 repeated calls to OpenSSL_add_all_ciphers() and
5646 OpenSSL_add_all_digests() to be ignored, even after calling
5650 *) Change the default configuration reader to deal with last line not
5651 being properly terminated.
5654 *) Change X509_NAME_cmp() so it applies the special rules on handling
5655 DN values that are of type PrintableString, as well as RDNs of type
5656 emailAddress where the value has the type ia5String.
5657 [stefank@valicert.com via Richard Levitte]
5659 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5660 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5661 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5662 the bitwise-OR of the two for use by the majority of applications
5663 wanting this behaviour, and update the docs. The documented
5664 behaviour and actual behaviour were inconsistent and had been
5665 changing anyway, so this is more a bug-fix than a behavioural
5667 [Geoff Thorpe, diagnosed by Nadav Har'El]
5669 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5670 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5673 *) Fix initialization code race conditions in
5674 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5675 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5676 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5677 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5678 ssl2_get_cipher_by_char(),
5679 ssl3_get_cipher_by_char().
5680 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5682 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5683 the cached sessions are flushed, as the remove_cb() might use ex_data
5684 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5685 (see [openssl.org #212]).
5686 [Geoff Thorpe, Lutz Jaenicke]
5688 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5689 length, instead of the encoding length to d2i_ASN1_OBJECT.
5692 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5694 *) [In 0.9.6g-engine release:]
5695 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5696 [Lynn Gazis <lgazis@rainbow.com>]
5698 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5700 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5701 and get fix the header length calculation.
5702 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5703 Alon Kantor <alonk@checkpoint.com> (and others),
5706 *) Use proper error handling instead of 'assertions' in buffer
5707 overflow checks added in 0.9.6e. This prevents DoS (the
5708 assertions could call abort()).
5709 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5711 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5713 *) Add various sanity checks to asn1_get_length() to reject
5714 the ASN1 length bytes if they exceed sizeof(long), will appear
5715 negative or the content length exceeds the length of the
5717 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5719 *) Fix cipher selection routines: ciphers without encryption had no flags
5720 for the cipher strength set and where therefore not handled correctly
5721 by the selection routines (PR #130).
5724 *) Fix EVP_dsa_sha macro.
5728 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5729 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5730 that was added in OpenSSL 0.9.6d.
5732 As the countermeasure turned out to be incompatible with some
5733 broken SSL implementations, the new option is part of SSL_OP_ALL.
5734 SSL_OP_ALL is usually employed when compatibility with weird SSL
5735 implementations is desired (e.g. '-bugs' option to 's_client' and
5736 's_server'), so the new option is automatically set in many
5740 *) Changes in security patch:
5742 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5743 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5744 Air Force Materiel Command, USAF, under agreement number
5747 *) Add various sanity checks to asn1_get_length() to reject
5748 the ASN1 length bytes if they exceed sizeof(long), will appear
5749 negative or the content length exceeds the length of the
5750 supplied buffer. (CVE-2002-0659)
5751 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5753 *) Assertions for various potential buffer overflows, not known to
5755 [Ben Laurie (CHATS)]
5757 *) Various temporary buffers to hold ASCII versions of integers were
5758 too small for 64 bit platforms. (CVE-2002-0655)
5759 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5761 *) Remote buffer overflow in SSL3 protocol - an attacker could
5762 supply an oversized session ID to a client. (CVE-2002-0656)
5763 [Ben Laurie (CHATS)]
5765 *) Remote buffer overflow in SSL2 protocol - an attacker could
5766 supply an oversized client master key. (CVE-2002-0656)
5767 [Ben Laurie (CHATS)]
5769 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5771 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5772 encoded as NULL) with id-dsa-with-sha1.
5773 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5775 *) Check various X509_...() return values in apps/req.c.
5776 [Nils Larsch <nla@trustcenter.de>]
5778 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5779 an end-of-file condition would erronously be flagged, when the CRLF
5780 was just at the end of a processed block. The bug was discovered when
5781 processing data through a buffering memory BIO handing the data to a
5782 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5783 <ptsekov@syntrex.com> and Nedelcho Stanev.
5786 *) Implement a countermeasure against a vulnerability recently found
5787 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5788 before application data chunks to avoid the use of known IVs
5789 with data potentially chosen by the attacker.
5792 *) Fix length checks in ssl3_get_client_hello().
5795 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5796 to prevent ssl3_read_internal() from incorrectly assuming that
5797 ssl3_read_bytes() found application data while handshake
5798 processing was enabled when in fact s->s3->in_read_app_data was
5799 merely automatically cleared during the initial handshake.
5800 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5802 *) Fix object definitions for Private and Enterprise: they were not
5803 recognized in their shortname (=lowercase) representation. Extend
5804 obj_dat.pl to issue an error when using undefined keywords instead
5805 of silently ignoring the problem (Svenning Sorensen
5806 <sss@sss.dnsalias.net>).
5809 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5810 generators, i.e. generators other than 2 and 5. (Previously, the
5811 code did not properly initialise the 'add' and 'rem' values to
5812 BN_generate_prime().)
5814 In the new general case, we do not insist that 'generator' is
5815 actually a primitive root: This requirement is rather pointless;
5816 a generator of the order-q subgroup is just as good, if not
5820 *) Map new X509 verification errors to alerts. Discovered and submitted by
5821 Tom Wu <tom@arcot.com>.
5824 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5825 returning non-zero before the data has been completely received
5826 when using non-blocking I/O.
5827 [Bodo Moeller; problem pointed out by John Hughes]
5829 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5830 [Ben Laurie, Lutz Jaenicke]
5832 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5833 Yoram Zahavi <YoramZ@gilian.com>).
5836 *) Add information about CygWin 1.3 and on, and preserve proper
5837 configuration for the versions before that.
5838 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5840 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5841 check whether we deal with a copy of a session and do not delete from
5842 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5843 <izhar@checkpoint.com>.
5846 *) Do not store session data into the internal session cache, if it
5847 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5848 flag is set). Proposed by Aslam <aslam@funk.com>.
5851 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5855 *) [In 0.9.6d-engine release:]
5856 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5857 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5859 *) Add the configuration target linux-s390x.
5860 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5862 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5863 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5864 variable as an indication that a ClientHello message has been
5865 received. As the flag value will be lost between multiple
5866 invocations of ssl3_accept when using non-blocking I/O, the
5867 function may not be aware that a handshake has actually taken
5868 place, thus preventing a new session from being added to the
5871 To avoid this problem, we now set s->new_session to 2 instead of
5872 using a local variable.
5873 [Lutz Jaenicke, Bodo Moeller]
5875 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5876 if the SSL_R_LENGTH_MISMATCH error is detected.
5877 [Geoff Thorpe, Bodo Moeller]
5879 *) New 'shared_ldflag' column in Configure platform table.
5882 *) Fix EVP_CIPHER_mode macro.
5883 ["Dan S. Camper" <dan@bti.net>]
5885 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5886 type, we must throw them away by setting rr->length to 0.
5887 [D P Chang <dpc@qualys.com>]
5889 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5891 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5892 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5893 worked incorrectly for those cases where range = 10..._2 and
5894 3*range is two bits longer than range.)
5897 *) Only add signing time to PKCS7 structures if it is not already
5901 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5902 OBJ_ld_ce should be OBJ_id_ce.
5903 Also some ip-pda OIDs in crypto/objects/objects.txt were
5904 incorrect (cf. RFC 3039).
5905 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5907 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5908 returns early because it has nothing to do.
5909 [Andy Schneider <andy.schneider@bjss.co.uk>]
5911 *) [In 0.9.6c-engine release:]
5912 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5913 [Andy Schneider <andy.schneider@bjss.co.uk>]
5915 *) [In 0.9.6c-engine release:]
5916 Add support for Cryptographic Appliance's keyserver technology.
5917 (Use engine 'keyclient')
5918 [Cryptographic Appliances and Geoff Thorpe]
5920 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5921 is called via tools/c89.sh because arguments have to be
5922 rearranged (all '-L' options must appear before the first object
5924 [Richard Shapiro <rshapiro@abinitio.com>]
5926 *) [In 0.9.6c-engine release:]
5927 Add support for Broadcom crypto accelerator cards, backported
5929 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5931 *) [In 0.9.6c-engine release:]
5932 Add support for SureWare crypto accelerator cards from
5933 Baltimore Technologies. (Use engine 'sureware')
5934 [Baltimore Technologies and Mark Cox]
5936 *) [In 0.9.6c-engine release:]
5937 Add support for crypto accelerator cards from Accelerated
5938 Encryption Processing, www.aep.ie. (Use engine 'aep')
5939 [AEP Inc. and Mark Cox]
5941 *) Add a configuration entry for gcc on UnixWare.
5942 [Gary Benson <gbenson@redhat.com>]
5944 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5945 messages are stored in a single piece (fixed-length part and
5946 variable-length part combined) and fix various bugs found on the way.
5949 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5950 instead. BIO_gethostbyname() does not know what timeouts are
5951 appropriate, so entries would stay in cache even when they have
5953 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5955 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5956 faced with a pathologically small ClientHello fragment that does
5957 not contain client_version: Instead of aborting with an error,
5958 simply choose the highest available protocol version (i.e.,
5959 TLS 1.0 unless it is disabled). In practice, ClientHello
5960 messages are never sent like this, but this change gives us
5961 strictly correct behaviour at least for TLS.
5964 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5965 never resets s->method to s->ctx->method when called from within
5966 one of the SSL handshake functions.
5967 [Bodo Moeller; problem pointed out by Niko Baric]
5969 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5970 (sent using the client's version number) if client_version is
5971 smaller than the protocol version in use. Also change
5972 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5973 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5974 the client will at least see that alert.
5977 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5981 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5982 client receives HelloRequest while in a handshake.
5983 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5985 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5986 should end in 'break', not 'goto end' which circuments various
5987 cleanups done in state SSL_ST_OK. But session related stuff
5988 must be disabled for SSL_ST_OK in the case that we just sent a
5991 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5992 before just sending a HelloRequest.
5993 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5995 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5996 reveal whether illegal block cipher padding was found or a MAC
5997 verification error occured. (Neither SSLerr() codes nor alerts
5998 are directly visible to potential attackers, but the information
5999 may leak via logfiles.)
6001 Similar changes are not required for the SSL 2.0 implementation
6002 because the number of padding bytes is sent in clear for SSL 2.0,
6003 and the extra bytes are just ignored. However ssl/s2_pkt.c
6004 failed to verify that the purported number of padding bytes is in
6008 *) Add OpenUNIX-8 support including shared libraries
6009 (Boyd Lynn Gerber <gerberb@zenez.com>).
6012 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6013 'wristwatch attack' using huge encoding parameters (cf.
6014 James H. Manger's CRYPTO 2001 paper). Note that the
6015 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6016 encoding parameters and hence was not vulnerable.
6019 *) BN_sqr() bug fix.
6020 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6022 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6023 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6024 followed by modular reduction.
6025 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6027 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6028 equivalent based on BN_pseudo_rand() instead of BN_rand().
6031 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6032 This function was broken, as the check for a new client hello message
6033 to handle SGC did not allow these large messages.
6034 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6037 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6040 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6041 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6044 *) Rework the configuration and shared library support for Tru64 Unix.
6045 The configuration part makes use of modern compiler features and
6046 still retains old compiler behavior for those that run older versions
6047 of the OS. The shared library support part includes a variant that
6048 uses the RPATH feature, and is available through the special
6049 configuration target "alpha-cc-rpath", which will never be selected
6051 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6053 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6054 with the same message size as in ssl3_get_certificate_request().
6055 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6056 messages might inadvertently be reject as too long.
6057 [Petr Lampa <lampa@fee.vutbr.cz>]
6059 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6062 *) Modified SSL library such that the verify_callback that has been set
6063 specificly for an SSL object with SSL_set_verify() is actually being
6064 used. Before the change, a verify_callback set with this function was
6065 ignored and the verify_callback() set in the SSL_CTX at the time of
6066 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6067 to allow the necessary settings.
6070 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6071 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6072 done automatically (in contradiction to the requirements of the C
6073 standard). This made problems when used from OpenSSH.
6076 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6077 dh->length and always used
6079 BN_rand_range(priv_key, dh->p).
6081 BN_rand_range() is not necessary for Diffie-Hellman, and this
6082 specific range makes Diffie-Hellman unnecessarily inefficient if
6083 dh->length (recommended exponent length) is much smaller than the
6084 length of dh->p. We could use BN_rand_range() if the order of
6085 the subgroup was stored in the DH structure, but we only have
6090 BN_rand(priv_key, l, ...)
6092 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6098 RSA_eay_public_encrypt
6099 RSA_eay_private_decrypt
6100 RSA_eay_private_encrypt (signing)
6101 RSA_eay_public_decrypt (signature verification)
6103 (default implementations for RSA_public_encrypt,
6104 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6105 always reject numbers >= n.
6108 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6109 to synchronize access to 'locking_thread'. This is necessary on
6110 systems where access to 'locking_thread' (an 'unsigned long'
6111 variable) is not atomic.
6114 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6115 *before* setting the 'crypto_lock_rand' flag. The previous code had
6116 a race condition if 0 is a valid thread ID.
6117 [Travis Vitek <vitek@roguewave.com>]
6119 *) Add support for shared libraries under Irix.
6120 [Albert Chin-A-Young <china@thewrittenword.com>]
6122 *) Add configuration option to build on Linux on both big-endian and
6124 [Ralf Baechle <ralf@uni-koblenz.de>]
6126 *) Add the possibility to create shared libraries on HP-UX.
6129 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6131 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6132 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6133 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6134 PRNG state recovery was possible based on the output of
6135 one PRNG request appropriately sized to gain knowledge on
6136 'md' followed by enough consecutive 1-byte PRNG requests
6137 to traverse all of 'state'.
6139 1. When updating 'md_local' (the current thread's copy of 'md')
6140 during PRNG output generation, hash all of the previous
6141 'md_local' value, not just the half used for PRNG output.
6143 2. Make the number of bytes from 'state' included into the hash
6144 independent from the number of PRNG bytes requested.
6146 The first measure alone would be sufficient to avoid
6147 Markku-Juhani's attack. (Actually it had never occurred
6148 to me that the half of 'md_local' used for chaining was the
6149 half from which PRNG output bytes were taken -- I had always
6150 assumed that the secret half would be used.) The second
6151 measure makes sure that additional data from 'state' is never
6152 mixed into 'md_local' in small portions; this heuristically
6153 further strengthens the PRNG.
6156 *) Fix crypto/bn/asm/mips3.s.
6159 *) When only the key is given to "enc", the IV is undefined. Print out
6160 an error message in this case.
6163 *) Handle special case when X509_NAME is empty in X509 printing routines.
6166 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6167 positive and less than q.
6170 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6171 used: it isn't thread safe and the add_lock_callback should handle
6173 [Paul Rose <Paul.Rose@bridge.com>]
6175 *) Verify that incoming data obeys the block size in
6176 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6180 [Ulf Möller, Bodo Möller]
6182 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6183 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6184 when fixing the server behaviour for backwards-compatible 'client
6185 hello' messages. (Note that the attack is impractical against
6186 SSL 3.0 and TLS 1.0 anyway because length and version checking
6187 means that the probability of guessing a valid ciphertext is
6188 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6191 Before 0.9.5, the countermeasure (hide the error by generating a
6192 random 'decryption result') did not work properly because
6193 ERR_clear_error() was missing, meaning that SSL_get_error() would
6194 detect the supposedly ignored error.
6196 Both problems are now fixed.
6199 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6200 (previously it was 1024).
6203 *) Fix for compatibility mode trust settings: ignore trust settings
6204 unless some valid trust or reject settings are present.
6207 *) Fix for blowfish EVP: its a variable length cipher.
6210 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6211 parameters in DSA public key structures and return an error in the
6212 DSA routines if parameters are absent.
6215 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6216 in the current directory if neither $RANDFILE nor $HOME was set.
6217 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6218 caused some confusion to Windows users who haven't defined $HOME.
6219 Thus RAND_file_name() is changed again: e_os.h can define a
6220 DEFAULT_HOME, which will be used if $HOME is not set.
6221 For Windows, we use "C:"; on other platforms, we still require
6222 environment variables.
6224 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6225 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6226 having multiple threads call RAND_poll() concurrently.
6229 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6230 combination of a flag and a thread ID variable.
6231 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6232 flag), *other* threads can enter ssleay_add_bytes without obeying
6233 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6234 that they do not hold after the first thread unsets add_do_not_lock).
6237 *) Change bctest again: '-x' expressions are not available in all
6241 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6243 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6244 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6246 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6247 the default extension for executables, if any. Also, make the perl
6248 scripts that use symlink() to test if it really exists and use "cp"
6249 if it doesn't. All this made OpenSSL compilable and installable in
6253 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6254 If SEQUENCE is length is indefinite just set c->slen to the total
6255 amount of data available.
6256 [Steve Henson, reported by shige@FreeBSD.org]
6257 [This change does not apply to 0.9.7.]
6259 *) Change bctest to avoid here-documents inside command substitution
6260 (workaround for FreeBSD /bin/sh bug).
6261 For compatibility with Ultrix, avoid shell functions (introduced
6262 in the bctest version that searches along $PATH).
6265 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6266 with des_encrypt() defined on some operating systems, like Solaris
6270 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6271 On the Importance of Eliminating Errors in Cryptographic
6272 Computations, J. Cryptology 14 (2001) 2, 101-119,
6273 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6276 *) MIPS assembler BIGNUM division bug fix.
6279 *) Disabled incorrect Alpha assembler code.
6282 *) Fix PKCS#7 decode routines so they correctly update the length
6283 after reading an EOC for the EXPLICIT tag.
6285 [This change does not apply to 0.9.7.]
6287 *) Fix bug in PKCS#12 key generation routines. This was triggered
6288 if a 3DES key was generated with a 0 initial byte. Include
6289 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6290 (but broken) behaviour.
6293 *) Enhance bctest to search for a working bc along $PATH and print
6295 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6297 *) Fix memory leaks in err.c: free err_data string if necessary;
6298 don't write to the wrong index in ERR_set_error_data.
6301 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6305 *) Replace rdtsc with _emit statements for VC++ version 5.
6306 [Jeremy Cooper <jeremy@baymoo.org>]
6308 *) Make it possible to reuse SSLv2 sessions.
6311 *) In copy_email() check for >= 0 as a return value for
6312 X509_NAME_get_index_by_NID() since 0 is a valid index.
6313 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6315 *) Avoid coredump with unsupported or invalid public keys by checking if
6316 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6317 PKCS7_verify() fails with non detached data.
6320 *) Don't use getenv in library functions when run as setuid/setgid.
6321 New function OPENSSL_issetugid().
6324 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6325 due to incorrect handling of multi-threading:
6327 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6329 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6331 3. Count how many times MemCheck_off() has been called so that
6332 nested use can be treated correctly. This also avoids
6333 inband-signalling in the previous code (which relied on the
6334 assumption that thread ID 0 is impossible).
6337 *) Add "-rand" option also to s_client and s_server.
6340 *) Fix CPU detection on Irix 6.x.
6341 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6342 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6344 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6347 [This change does not apply to 0.9.7.]
6349 *) Use the cached encoding of an X509_NAME structure rather than
6350 copying it. This is apparently the reason for the libsafe "errors"
6351 but the code is actually correct.
6354 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6355 Bleichenbacher's DSA attack.
6356 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6357 to be set and top=0 forces the highest bit to be set; top=-1 is new
6358 and leaves the highest bit random.
6359 [Ulf Moeller, Bodo Moeller]
6361 *) In the NCONF_...-based implementations for CONF_... queries
6362 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6363 a temporary CONF structure with the data component set to NULL
6364 (which gives segmentation faults in lh_retrieve).
6365 Instead, use NULL for the CONF pointer in CONF_get_string and
6366 CONF_get_number (which may use environment variables) and directly
6367 return NULL from CONF_get_section.
6370 *) Fix potential buffer overrun for EBCDIC.
6373 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6374 keyUsage if basicConstraints absent for a CA.
6377 *) Make SMIME_write_PKCS7() write mail header values with a format that
6378 is more generally accepted (no spaces before the semicolon), since
6379 some programs can't parse those values properly otherwise. Also make
6380 sure BIO's that break lines after each write do not create invalid
6384 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6385 macros previously used would not encode an empty SEQUENCE OF
6386 and break the signature.
6388 [This change does not apply to 0.9.7.]
6390 *) Zero the premaster secret after deriving the master secret in
6394 *) Add some EVP_add_digest_alias registrations (as found in
6395 OpenSSL_add_all_digests()) to SSL_library_init()
6396 aka OpenSSL_add_ssl_algorithms(). This provides improved
6397 compatibility with peers using X.509 certificates
6398 with unconventional AlgorithmIdentifier OIDs.
6401 *) Fix for Irix with NO_ASM.
6402 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6404 *) ./config script fixes.
6405 [Ulf Moeller, Richard Levitte]
6407 *) Fix 'openssl passwd -1'.
6410 *) Change PKCS12_key_gen_asc() so it can cope with non null
6411 terminated strings whose length is passed in the passlen
6412 parameter, for example from PEM callbacks. This was done
6413 by adding an extra length parameter to asc2uni().
6414 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6416 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6417 call failed, free the DSA structure.
6420 *) Fix to uni2asc() to cope with zero length Unicode strings.
6421 These are present in some PKCS#12 files.
6424 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6425 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6426 when writing a 32767 byte record.
6427 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6429 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6430 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6432 (RSA objects have a reference count access to which is protected
6433 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6434 so they are meant to be shared between threads.)
6435 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6436 "Reddie, Steven" <Steven.Reddie@ca.com>]
6438 *) Fix a deadlock in CRYPTO_mem_leaks().
6441 *) Use better test patterns in bntest.
6444 *) rand_win.c fix for Borland C.
6447 *) BN_rshift bugfix for n == 0.
6450 *) Add a 'bctest' script that checks for some known 'bc' bugs
6451 so that 'make test' does not abort just because 'bc' is broken.
6454 *) Store verify_result within SSL_SESSION also for client side to
6455 avoid potential security hole. (Re-used sessions on the client side
6456 always resulted in verify_result==X509_V_OK, not using the original
6457 result of the server certificate verification.)
6460 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6461 SSL3_RT_APPLICATION_DATA, return 0.
6462 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6466 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6467 releases, have been re-implemented by renaming the previous
6468 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6469 and ssl3_read_internal, respectively, and adding 'peek' parameters
6470 to them. The new ssl[23]_{read,peek} functions are calls to
6471 ssl[23]_read_internal with the 'peek' flag set appropriately.
6472 A 'peek' parameter has also been added to ssl3_read_bytes, which
6473 does the actual work for ssl3_read_internal.
6476 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6477 the method-specific "init()" handler. Also clean up ex_data after
6478 calling the method-specific "finish()" handler. Previously, this was
6479 happening the other way round.
6482 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6483 The previous value, 12, was not always sufficient for BN_mod_exp().
6486 *) Make sure that shared libraries get the internal name engine with
6487 the full version number and not just 0. This should mark the
6488 shared libraries as not backward compatible. Of course, this should
6489 be changed again when we can guarantee backward binary compatibility.
6492 *) Fix typo in get_cert_by_subject() in by_dir.c
6493 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6495 *) Rework the system to generate shared libraries:
6497 - Make note of the expected extension for the shared libraries and
6498 if there is a need for symbolic links from for example libcrypto.so.0
6499 to libcrypto.so.0.9.7. There is extended info in Configure for
6502 - Make as few rebuilds of the shared libraries as possible.
6504 - Still avoid linking the OpenSSL programs with the shared libraries.
6506 - When installing, install the shared libraries separately from the
6510 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6512 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6513 and not in SSL_clear because the latter is also used by the
6514 accept/connect functions; previously, the settings made by
6515 SSL_set_read_ahead would be lost during the handshake.
6516 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6518 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6519 Previously, it would create entries for disableed algorithms no
6523 *) Added several new manual pages for SSL_* function.
6526 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6528 *) In ssl23_get_client_hello, generate an error message when faced
6529 with an initial SSL 3.0/TLS record that is too small to contain the
6530 first two bytes of the ClientHello message, i.e. client_version.
6531 (Note that this is a pathologic case that probably has never happened
6532 in real life.) The previous approach was to use the version number
6533 from the record header as a substitute; but our protocol choice
6534 should not depend on that one because it is not authenticated
6535 by the Finished messages.
6538 *) More robust randomness gathering functions for Windows.
6539 [Jeffrey Altman <jaltman@columbia.edu>]
6541 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6542 not set then we don't setup the error code for issuer check errors
6543 to avoid possibly overwriting other errors which the callback does
6544 handle. If an application does set the flag then we assume it knows
6545 what it is doing and can handle the new informational codes
6549 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6550 a general "ANY" type, as such it should be able to decode anything
6551 including tagged types. However it didn't check the class so it would
6552 wrongly interpret tagged types in the same way as their universal
6553 counterpart and unknown types were just rejected. Changed so that the
6554 tagged and unknown types are handled in the same way as a SEQUENCE:
6555 that is the encoding is stored intact. There is also a new type
6556 "V_ASN1_OTHER" which is used when the class is not universal, in this
6557 case we have no idea what the actual type is so we just lump them all
6561 *) On VMS, stdout may very well lead to a file that is written to
6562 in a record-oriented fashion. That means that every write() will
6563 write a separate record, which will be read separately by the
6564 programs trying to read from it. This can be very confusing.
6566 The solution is to put a BIO filter in the way that will buffer
6567 text until a linefeed is reached, and then write everything a
6568 line at a time, so every record written will be an actual line,
6569 not chunks of lines and not (usually doesn't happen, but I've
6570 seen it once) several lines in one record. BIO_f_linebuffer() is
6573 Currently, it's a VMS-only method, because that's where it has
6574 been tested well enough.
6577 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6578 it can return incorrect results.
6579 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6580 but it was in 0.9.6-beta[12].)
6583 *) Disable the check for content being present when verifying detached
6584 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6585 include zero length content when signing messages.
6588 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6589 BIO_ctrl (for BIO pairs).
6592 *) Add DSO method for VMS.
6595 *) Bug fix: Montgomery multiplication could produce results with the
6599 *) Add RPM specification openssl.spec and modify it to build three
6600 packages. The default package contains applications, application
6601 documentation and run-time libraries. The devel package contains
6602 include files, static libraries and function documentation. The
6603 doc package contains the contents of the doc directory. The original
6604 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6607 *) Add a large number of documentation files for many SSL routines.
6608 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6610 *) Add a configuration entry for Sony News 4.
6611 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6613 *) Don't set the two most significant bits to one when generating a
6614 random number < q in the DSA library.
6617 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6618 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6619 the underlying transport is blocking) if a handshake took place.
6620 (The default behaviour is needed by applications such as s_client
6621 and s_server that use select() to determine when to use SSL_read;
6622 but for applications that know in advance when to expect data, it
6623 just makes things more complicated.)
6626 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6630 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6631 work better on such systems.
6632 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6634 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6635 Update PKCS12_parse() so it copies the friendlyName and the
6636 keyid to the certificates aux info.
6639 *) Fix bug in PKCS7_verify() which caused an infinite loop
6640 if there was more than one signature.
6641 [Sven Uszpelkat <su@celocom.de>]
6643 *) Major change in util/mkdef.pl to include extra information
6644 about each symbol, as well as presentig variables as well
6645 as functions. This change means that there's n more need
6646 to rebuild the .num files when some algorithms are excluded.
6649 *) Allow the verify time to be set by an application,
6650 rather than always using the current time.
6653 *) Phase 2 verify code reorganisation. The certificate
6654 verify code now looks up an issuer certificate by a
6655 number of criteria: subject name, authority key id
6656 and key usage. It also verifies self signed certificates
6657 by the same criteria. The main comparison function is
6658 X509_check_issued() which performs these checks.
6660 Lot of changes were necessary in order to support this
6661 without completely rewriting the lookup code.
6663 Authority and subject key identifier are now cached.
6665 The LHASH 'certs' is X509_STORE has now been replaced
6666 by a STACK_OF(X509_OBJECT). This is mainly because an
6667 LHASH can't store or retrieve multiple objects with
6668 the same hash value.
6670 As a result various functions (which were all internal
6671 use only) have changed to handle the new X509_STORE
6672 structure. This will break anything that messed round
6673 with X509_STORE internally.
6675 The functions X509_STORE_add_cert() now checks for an
6676 exact match, rather than just subject name.
6678 The X509_STORE API doesn't directly support the retrieval
6679 of multiple certificates matching a given criteria, however
6680 this can be worked round by performing a lookup first
6681 (which will fill the cache with candidate certificates)
6682 and then examining the cache for matches. This is probably
6683 the best we can do without throwing out X509_LOOKUP
6684 entirely (maybe later...).
6686 The X509_VERIFY_CTX structure has been enhanced considerably.
6688 All certificate lookup operations now go via a get_issuer()
6689 callback. Although this currently uses an X509_STORE it
6690 can be replaced by custom lookups. This is a simple way
6691 to bypass the X509_STORE hackery necessary to make this
6692 work and makes it possible to use more efficient techniques
6693 in future. A very simple version which uses a simple
6694 STACK for its trusted certificate store is also provided
6695 using X509_STORE_CTX_trusted_stack().
6697 The verify_cb() and verify() callbacks now have equivalents
6698 in the X509_STORE_CTX structure.
6700 X509_STORE_CTX also has a 'flags' field which can be used
6701 to customise the verify behaviour.
6704 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6705 excludes S/MIME capabilities.
6708 *) When a certificate request is read in keep a copy of the
6709 original encoding of the signed data and use it when outputing
6710 again. Signatures then use the original encoding rather than
6711 a decoded, encoded version which may cause problems if the
6712 request is improperly encoded.
6715 *) For consistency with other BIO_puts implementations, call
6716 buffer_write(b, ...) directly in buffer_puts instead of calling
6719 In BIO_puts, increment b->num_write as in BIO_write.
6720 [Peter.Sylvester@EdelWeb.fr]
6722 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6723 BN_zero, we may not return a BIGNUM with an array consisting of
6727 *) Avoid calling abort() from within the library when problems are
6728 detected, except if preprocessor symbols have been defined
6729 (such as REF_CHECK, BN_DEBUG etc.).
6732 *) New openssl application 'rsautl'. This utility can be
6733 used for low level RSA operations. DER public key
6734 BIO/fp routines also added.
6737 *) New Configure entry and patches for compiling on QNX 4.
6738 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6740 *) A demo state-machine implementation was sponsored by
6741 Nuron (http://www.nuron.com/) and is now available in
6742 demos/state_machine.
6745 *) New options added to the 'dgst' utility for signature
6746 generation and verification.
6749 *) Unrecognized PKCS#7 content types are now handled via a
6750 catch all ASN1_TYPE structure. This allows unsupported
6751 types to be stored as a "blob" and an application can
6752 encode and decode it manually.
6755 *) Fix various signed/unsigned issues to make a_strex.c
6757 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6759 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6760 length if passed a buffer. ASN1_INTEGER_to_BN failed
6761 if passed a NULL BN and its argument was negative.
6762 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6764 *) Modification to PKCS#7 encoding routines to output definite
6765 length encoding. Since currently the whole structures are in
6766 memory there's not real point in using indefinite length
6767 constructed encoding. However if OpenSSL is compiled with
6768 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6771 *) Added BIO_vprintf() and BIO_vsnprintf().
6774 *) Added more prefixes to parse for in the the strings written
6775 through a logging bio, to cover all the levels that are available
6776 through syslog. The prefixes are now:
6778 PANIC, EMERG, EMR => LOG_EMERG
6779 ALERT, ALR => LOG_ALERT
6780 CRIT, CRI => LOG_CRIT
6781 ERROR, ERR => LOG_ERR
6782 WARNING, WARN, WAR => LOG_WARNING
6783 NOTICE, NOTE, NOT => LOG_NOTICE
6784 INFO, INF => LOG_INFO
6785 DEBUG, DBG => LOG_DEBUG
6787 and as before, if none of those prefixes are present at the
6788 beginning of the string, LOG_ERR is chosen.
6790 On Win32, the LOG_* levels are mapped according to this:
6792 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6793 LOG_WARNING => EVENTLOG_WARNING_TYPE
6794 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6798 *) Made it possible to reconfigure with just the configuration
6799 argument "reconf" or "reconfigure". The command line arguments
6800 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6801 and are retrieved from there when reconfiguring.
6805 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6807 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6810 *) The obj_dat.pl script was messing up the sorting of object
6811 names. The reason was that it compared the quoted version
6812 of strings as a result "OCSP" > "OCSP Signing" because
6813 " > SPACE. Changed script to store unquoted versions of
6814 names and add quotes on output. It was also omitting some
6815 names from the lookup table if they were given a default
6816 value (that is if SN is missing it is given the same
6817 value as LN and vice versa), these are now added on the
6818 grounds that if an object has a name we should be able to
6819 look it up. Finally added warning output when duplicate
6820 short or long names are found.
6823 *) Changes needed for Tandem NSK.
6824 [Scott Uroff <scott@xypro.com>]
6826 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6827 RSA_padding_check_SSLv23(), special padding was never detected
6828 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6829 version rollback attacks was not effective.
6831 In s23_clnt.c, don't use special rollback-attack detection padding
6832 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6833 client; similarly, in s23_srvr.c, don't do the rollback check if
6834 SSL 2.0 is the only protocol enabled in the server.
6837 *) Make it possible to get hexdumps of unprintable data with 'openssl
6838 asn1parse'. By implication, the functions ASN1_parse_dump() and
6839 BIO_dump_indent() are added.
6842 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6843 these print out strings and name structures based on various
6844 flags including RFC2253 support and proper handling of
6845 multibyte characters. Added options to the 'x509' utility
6846 to allow the various flags to be set.
6849 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6850 Also change the functions X509_cmp_current_time() and
6851 X509_gmtime_adj() work with an ASN1_TIME structure,
6852 this will enable certificates using GeneralizedTime in validity
6853 dates to be checked.
6856 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6857 negative public key encodings) on by default,
6858 NO_NEG_PUBKEY_BUG can be set to disable it.
6861 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6862 content octets. An i2c_ASN1_OBJECT is unnecessary because
6863 the encoding can be trivially obtained from the structure.
6866 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6867 not read locks (CRYPTO_r_[un]lock).
6870 *) A first attempt at creating official support for shared
6871 libraries through configuration. I've kept it so the
6872 default is static libraries only, and the OpenSSL programs
6873 are always statically linked for now, but there are
6874 preparations for dynamic linking in place.
6875 This has been tested on Linux and Tru64.
6878 *) Randomness polling function for Win9x, as described in:
6879 Peter Gutmann, Software Generation of Practically Strong
6883 *) Fix so PRNG is seeded in req if using an already existing
6887 *) New options to smime application. -inform and -outform
6888 allow alternative formats for the S/MIME message including
6889 PEM and DER. The -content option allows the content to be
6890 specified separately. This should allow things like Netscape
6891 form signing output easier to verify.
6894 *) Fix the ASN1 encoding of tags using the 'long form'.
6897 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6898 STRING types. These convert content octets to and from the
6899 underlying type. The actual tag and length octets are
6900 already assumed to have been read in and checked. These
6901 are needed because all other string types have virtually
6902 identical handling apart from the tag. By having versions
6903 of the ASN1 functions that just operate on content octets
6904 IMPLICIT tagging can be handled properly. It also allows
6905 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6906 and ASN1_INTEGER are identical apart from the tag.
6909 *) Change the handling of OID objects as follows:
6911 - New object identifiers are inserted in objects.txt, following
6912 the syntax given in objects.README.
6913 - objects.pl is used to process obj_mac.num and create a new
6915 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6918 This is currently kind of a hack, and the perl code in objects.pl
6919 isn't very elegant, but it works as I intended. The simplest way
6920 to check that it worked correctly is to look in obj_dat.h and
6921 check the array nid_objs and make sure the objects haven't moved
6922 around (this is important!). Additions are OK, as well as
6923 consistent name changes.
6926 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6929 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6930 The given file adds to whatever has already been seeded into the
6931 random pool through the RANDFILE configuration file option or
6932 environment variable, or the default random state file.
6935 *) mkstack.pl now sorts each macro group into lexical order.
6936 Previously the output order depended on the order the files
6937 appeared in the directory, resulting in needless rewriting
6941 *) Patches to make OpenSSL compile under Win32 again. Mostly
6942 work arounds for the VC++ problem that it treats func() as
6943 func(void). Also stripped out the parts of mkdef.pl that
6944 added extra typesafe functions: these no longer exist.
6947 *) Reorganisation of the stack code. The macros are now all
6948 collected in safestack.h . Each macro is defined in terms of
6949 a "stack macro" of the form SKM_<name>(type, a, b). The
6950 DEBUG_SAFESTACK is now handled in terms of function casts,
6951 this has the advantage of retaining type safety without the
6952 use of additional functions. If DEBUG_SAFESTACK is not defined
6953 then the non typesafe macros are used instead. Also modified the
6954 mkstack.pl script to handle the new form. Needs testing to see
6955 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6956 the default if no major problems. Similar behaviour for ASN1_SET_OF
6957 and PKCS12_STACK_OF.
6960 *) When some versions of IIS use the 'NET' form of private key the
6961 key derivation algorithm is different. Normally MD5(password) is
6962 used as a 128 bit RC4 key. In the modified case
6963 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6964 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6965 as the old Netscape_RSA functions except they have an additional
6966 'sgckey' parameter which uses the modified algorithm. Also added
6967 an -sgckey command line option to the rsa utility. Thanks to
6968 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6969 algorithm to openssl-dev.
6972 *) The evp_local.h macros were using 'c.##kname' which resulted in
6973 invalid expansion on some systems (SCO 5.0.5 for example).
6974 Corrected to 'c.kname'.
6975 [Phillip Porch <root@theporch.com>]
6977 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6978 a STACK of email addresses from a certificate or request, these look
6979 in the subject name and the subject alternative name extensions and
6980 omit any duplicate addresses.
6983 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6984 This makes DSA verification about 2 % faster.
6987 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6988 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6989 plus overhead for 1024 bit moduli).
6990 This makes exponentiations about 0.5 % faster for 1024 bit
6991 exponents (as measured by "openssl speed rsa2048").
6994 *) Rename memory handling macros to avoid conflicts with other
6996 Malloc => OPENSSL_malloc
6997 Malloc_locked => OPENSSL_malloc_locked
6998 Realloc => OPENSSL_realloc
6999 Free => OPENSSL_free
7002 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7003 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7006 *) CygWin32 support.
7007 [John Jarvie <jjarvie@newsguy.com>]
7009 *) The type-safe stack code has been rejigged. It is now only compiled
7010 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7011 by default all type-specific stack functions are "#define"d back to
7012 standard stack functions. This results in more streamlined output
7013 but retains the type-safety checking possibilities of the original
7017 *) The STACK code has been cleaned up, and certain type declarations
7018 that didn't make a lot of sense have been brought in line. This has
7019 also involved a cleanup of sorts in safestack.h to more correctly
7020 map type-safe stack functions onto their plain stack counterparts.
7021 This work has also resulted in a variety of "const"ifications of
7022 lots of the code, especially "_cmp" operations which should normally
7023 be prototyped with "const" parameters anyway.
7026 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7027 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7028 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7029 where all of 'md' is used each time the PRNG is used, but 'state'
7030 is used only indexed by a cyclic counter. As entropy may not be
7031 well distributed from the beginning, 'md' is important as a
7032 chaining variable. However, the output function chains only half
7033 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7034 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7035 in all of 'state' being rewritten, with the new values depending
7036 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7039 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7040 the handshake is continued after ssl_verify_cert_chain();
7041 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7042 can lead to 'unexplainable' connection aborts later.
7043 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7045 *) Major EVP API cipher revision.
7046 Add hooks for extra EVP features. This allows various cipher
7047 parameters to be set in the EVP interface. Support added for variable
7048 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7049 setting of RC2 and RC5 parameters.
7051 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7054 Remove lots of duplicated code from the EVP library. For example *every*
7055 cipher init() function handles the 'iv' in the same way according to the
7056 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7057 for CFB and OFB modes they zero ctx->num.
7059 New functionality allows removal of S/MIME code RC2 hack.
7061 Most of the routines have the same form and so can be declared in terms
7064 By shifting this to the top level EVP_CipherInit() it can be removed from
7065 all individual ciphers. If the cipher wants to handle IVs or keys
7066 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7069 Change lots of functions like EVP_EncryptUpdate() to now return a
7070 value: although software versions of the algorithms cannot fail
7071 any installed hardware versions can.
7074 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7075 this option is set, tolerate broken clients that send the negotiated
7076 protocol version number instead of the requested protocol version
7080 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7081 i.e. non-zero for export ciphersuites, zero otherwise.
7082 Previous versions had this flag inverted, inconsistent with
7083 rsa_tmp_cb (..._TMP_RSA_CB).
7084 [Bodo Moeller; problem reported by Amit Chopra]
7086 *) Add missing DSA library text string. Work around for some IIS
7087 key files with invalid SEQUENCE encoding.
7090 *) Add a document (doc/standards.txt) that list all kinds of standards
7091 and so on that are implemented in OpenSSL.
7094 *) Enhance c_rehash script. Old version would mishandle certificates
7095 with the same subject name hash and wouldn't handle CRLs at all.
7096 Added -fingerprint option to crl utility, to support new c_rehash
7100 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7103 *) Fix for SSL server purpose checking. Server checking was
7104 rejecting certificates which had extended key usage present
7105 but no ssl client purpose.
7106 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7108 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7109 is a little unclear about how a blank password is handled.
7110 Since the password in encoded as a BMPString with terminating
7111 double NULL a zero length password would end up as just the
7112 double NULL. However no password at all is different and is
7113 handled differently in the PKCS#12 key generation code. NS
7114 treats a blank password as zero length. MSIE treats it as no
7115 password on export: but it will try both on import. We now do
7116 the same: PKCS12_parse() tries zero length and no password if
7117 the password is set to "" or NULL (NULL is now a valid password:
7118 it wasn't before) as does the pkcs12 application.
7121 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7122 perror when PEM_read_bio_X509_REQ fails, the error message must
7123 be obtained from the error queue.
7126 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7127 it in ERR_remove_state if appropriate, and change ERR_get_state
7128 accordingly to avoid race conditions (this is necessary because
7129 thread_hash is no longer constant once set).
7132 *) Bugfix for linux-elf makefile.one.
7135 *) RSA_get_default_method() will now cause a default
7136 RSA_METHOD to be chosen if one doesn't exist already.
7137 Previously this was only set during a call to RSA_new()
7138 or RSA_new_method(NULL) meaning it was possible for
7139 RSA_get_default_method() to return NULL.
7142 *) Added native name translation to the existing DSO code
7143 that will convert (if the flag to do so is set) filenames
7144 that are sufficiently small and have no path information
7145 into a canonical native form. Eg. "blah" converted to
7146 "libblah.so" or "blah.dll" etc.
7149 *) New function ERR_error_string_n(e, buf, len) which is like
7150 ERR_error_string(e, buf), but writes at most 'len' bytes
7151 including the 0 terminator. For ERR_error_string_n, 'buf'
7153 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7155 *) CONF library reworked to become more general. A new CONF
7156 configuration file reader "class" is implemented as well as a
7157 new functions (NCONF_*, for "New CONF") to handle it. The now
7158 old CONF_* functions are still there, but are reimplemented to
7159 work in terms of the new functions. Also, a set of functions
7160 to handle the internal storage of the configuration data is
7161 provided to make it easier to write new configuration file
7162 reader "classes" (I can definitely see something reading a
7163 configuration file in XML format, for example), called _CONF_*,
7164 or "the configuration storage API"...
7166 The new configuration file reading functions are:
7168 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7169 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7171 NCONF_default, NCONF_WIN32
7173 NCONF_dump_fp, NCONF_dump_bio
7175 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7176 NCONF_new creates a new CONF object. This works in the same way
7177 as other interfaces in OpenSSL, like the BIO interface.
7178 NCONF_dump_* dump the internal storage of the configuration file,
7179 which is useful for debugging. All other functions take the same
7180 arguments as the old CONF_* functions wth the exception of the
7181 first that must be a `CONF *' instead of a `LHASH *'.
7183 To make it easer to use the new classes with the old CONF_* functions,
7184 the function CONF_set_default_method is provided.
7187 *) Add '-tls1' option to 'openssl ciphers', which was already
7188 mentioned in the documentation but had not been implemented.
7189 (This option is not yet really useful because even the additional
7190 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7193 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7194 OpenSSL-based applications) load shared libraries and bind to
7195 them in a portable way.
7196 [Geoff Thorpe, with contributions from Richard Levitte]
7198 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7200 *) Make sure _lrotl and _lrotr are only used with MSVC.
7202 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7203 (the default implementation of RAND_status).
7205 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7206 to '-clrext' (= clear extensions), as intended and documented.
7207 [Bodo Moeller; inconsistency pointed out by Michael Attili
7210 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7211 was larger than the MD block size.
7212 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7214 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7215 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7216 using the passed key: if the passed key was a private key the result
7217 of X509_print(), for example, would be to print out all the private key
7221 *) des_quad_cksum() byte order bug fix.
7222 [Ulf Möller, using the problem description in krb4-0.9.7, where
7223 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7225 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7227 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7229 *) For easily testing in shell scripts whether some command
7230 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7231 returns with exit code 0 iff no command of the given name is available.
7232 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7233 the output goes to stdout and nothing is printed to stderr.
7234 Additional arguments are always ignored.
7236 Since for each cipher there is a command of the same name,
7237 the 'no-cipher' compilation switches can be tested this way.
7239 ('openssl no-XXX' is not able to detect pseudo-commands such
7240 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7243 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7246 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7247 is set; it will be thrown away anyway because each handshake creates
7249 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7250 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7251 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7252 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7255 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7256 'Q' and 'R' lose their special meanings (quit/renegotiate).
7257 This is part of what -quiet does; unlike -quiet, -ign_eof
7258 does not suppress any output.
7261 *) Add compatibility options to the purpose and trust code. The
7262 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7263 accepts a certificate or CA, this was the previous behaviour,
7264 with all the associated security issues.
7266 X509_TRUST_COMPAT is the old trust behaviour: only and
7267 automatically trust self signed roots in certificate store. A
7268 new trust setting X509_TRUST_DEFAULT is used to specify that
7269 a purpose has no associated trust setting and it should instead
7270 use the value in the default purpose.
7273 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7274 and fix a memory leak.
7277 *) In util/mkerr.pl (which implements 'make errors'), preserve
7278 reason strings from the previous version of the .c file, as
7279 the default to have only downcase letters (and digits) in
7280 automatically generated reasons codes is not always appropriate.
7283 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7284 using strerror. Previously, ERR_reason_error_string() returned
7285 library names as reason strings for SYSerr; but SYSerr is a special
7286 case where small numbers are errno values, not library numbers.
7289 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7290 converts DSA parameters into DH parameters. (When creating parameters,
7291 DSA_generate_parameters is used.)
7294 *) Include 'length' (recommended exponent length) in C code generated
7295 by 'openssl dhparam -C'.
7298 *) The second argument to set_label in perlasm was already being used
7299 so couldn't be used as a "file scope" flag. Moved to third argument
7303 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7304 instead of RAND_bytes for encryption IVs and salts.
7307 *) Include RAND_status() into RAND_METHOD instead of implementing
7308 it only for md_rand.c Otherwise replacing the PRNG by calling
7309 RAND_set_rand_method would be impossible.
7312 *) Don't let DSA_generate_key() enter an infinite loop if the random
7313 number generation fails.
7316 *) New 'rand' application for creating pseudo-random output.
7319 *) Added configuration support for Linux/IA64
7320 [Rolf Haberrecker <rolf@suse.de>]
7322 *) Assembler module support for Mingw32.
7325 *) Shared library support for HPUX (in shlib/).
7326 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7328 *) Shared library support for Solaris gcc.
7329 [Lutz Behnke <behnke@trustcenter.de>]
7331 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7333 *) PKCS7_encrypt() was adding text MIME headers twice because they
7334 were added manually and by SMIME_crlf_copy().
7337 *) In bntest.c don't call BN_rand with zero bits argument.
7338 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7340 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7341 case was implemented. This caused BN_div_recp() to fail occasionally.
7344 *) Add an optional second argument to the set_label() in the perl
7345 assembly language builder. If this argument exists and is set
7346 to 1 it signals that the assembler should use a symbol whose
7347 scope is the entire file, not just the current function. This
7348 is needed with MASM which uses the format label:: for this scope.
7349 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7351 *) Change the ASN1 types so they are typedefs by default. Before
7352 almost all types were #define'd to ASN1_STRING which was causing
7353 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7357 *) Change names of new functions to the new get1/get0 naming
7358 convention: After 'get1', the caller owns a reference count
7359 and has to call ..._free; 'get0' returns a pointer to some
7360 data structure without incrementing reference counters.
7361 (Some of the existing 'get' functions increment a reference
7362 counter, some don't.)
7363 Similarly, 'set1' and 'add1' functions increase reference
7364 counters or duplicate objects.
7367 *) Allow for the possibility of temp RSA key generation failure:
7368 the code used to assume it always worked and crashed on failure.
7371 *) Fix potential buffer overrun problem in BIO_printf().
7372 [Ulf Möller, using public domain code by Patrick Powell; problem
7373 pointed out by David Sacerdote <das33@cornell.edu>]
7375 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7376 RAND_egd() and RAND_status(). In the command line application,
7377 the EGD socket can be specified like a seed file using RANDFILE
7381 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7382 Some CAs (e.g. Verisign) distribute certificates in this form.
7385 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7386 list to exclude them. This means that no special compilation option
7387 is needed to use anonymous DH: it just needs to be included in the
7391 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7392 EVP_MD_type. The old functionality is available in a new macro called
7393 EVP_MD_md(). Change code that uses it and update docs.
7396 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7397 where the 'void *' argument is replaced by a function pointer argument.
7398 Previously 'void *' was abused to point to functions, which works on
7399 many platforms, but is not correct. As these functions are usually
7400 called by macros defined in OpenSSL header files, most source code
7401 should work without changes.
7404 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7405 sections with information on -D... compiler switches used for
7406 compiling the library so that applications can see them. To enable
7407 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7408 must be defined. E.g.,
7409 #define OPENSSL_ALGORITHM_DEFINES
7410 #include <openssl/opensslconf.h>
7411 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7412 [Richard Levitte, Ulf and Bodo Möller]
7414 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7418 *) Change the 'other' type in certificate aux info to a STACK_OF
7419 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7420 the required ASN1 format: arbitrary types determined by an OID.
7423 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7424 argument to 'req'. This is not because the function is newer or
7425 better than others it just uses the work 'NEW' in the certificate
7426 request header lines. Some software needs this.
7429 *) Reorganise password command line arguments: now passwords can be
7430 obtained from various sources. Delete the PEM_cb function and make
7431 it the default behaviour: i.e. if the callback is NULL and the
7432 usrdata argument is not NULL interpret it as a null terminated pass
7433 phrase. If usrdata and the callback are NULL then the pass phrase
7434 is prompted for as usual.
7437 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7438 the support is automatically enabled. The resulting binaries will
7439 autodetect the card and use it if present.
7440 [Ben Laurie and Compaq Inc.]
7442 *) Work around for Netscape hang bug. This sends certificate request
7443 and server done in one record. Since this is perfectly legal in the
7444 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7445 the bugs/SSLv3 entry for more info.
7448 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7451 *) Add -rand argument to smime and pkcs12 applications and read/write
7455 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7458 *) Add command line password options to the remaining applications.
7461 *) Bug fix for BN_div_recp() for numerators with an even number of
7465 *) More tests in bntest.c, and changed test_bn output.
7468 *) ./config recognizes MacOS X now.
7471 *) Bug fix for BN_div() when the first words of num and divsor are
7472 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7475 *) Add support for various broken PKCS#8 formats, and command line
7476 options to produce them.
7479 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7480 get temporary BIGNUMs from a BN_CTX.
7483 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7487 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7488 include a #define from the old name to the new. The original intent
7489 was that statically linked binaries could for example just call
7490 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7491 link with digests. This never worked becayse SSLeay_add_all_digests()
7492 and SSLeay_add_all_ciphers() were in the same source file so calling
7493 one would link with the other. They are now in separate source files.
7496 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7499 *) Use a less unusual form of the Miller-Rabin primality test (it used
7500 a binary algorithm for exponentiation integrated into the Miller-Rabin
7501 loop, our standard modexp algorithms are faster).
7504 *) Support for the EBCDIC character set completed.
7505 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7507 *) Source code cleanups: use const where appropriate, eliminate casts,
7508 use void * instead of char * in lhash.
7511 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7512 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7513 this the server could overwrite ephemeral keys that the client
7517 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7518 using 50 iterations of the Rabin-Miller test.
7520 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7521 iterations of the Rabin-Miller test as required by the appendix
7522 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7523 As BN_is_prime_fasttest includes trial division, DSA parameter
7524 generation becomes much faster.
7526 This implies a change for the callback functions in DSA_is_prime
7527 and DSA_generate_parameters: The callback function is called once
7528 for each positive witness in the Rabin-Miller test, not just
7529 occasionally in the inner loop; and the parameters to the
7530 callback function now provide an iteration count for the outer
7531 loop rather than for the current invocation of the inner loop.
7532 DSA_generate_parameters additionally can call the callback
7533 function with an 'iteration count' of -1, meaning that a
7534 candidate has passed the trial division test (when q is generated
7535 from an application-provided seed, trial division is skipped).
7538 *) New function BN_is_prime_fasttest that optionally does trial
7539 division before starting the Rabin-Miller test and has
7540 an additional BN_CTX * argument (whereas BN_is_prime always
7541 has to allocate at least one BN_CTX).
7542 'callback(1, -1, cb_arg)' is called when a number has passed the
7543 trial division stage.
7546 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7550 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7553 *) New function BN_pseudo_rand().
7556 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7557 bignum version of BN_from_montgomery() with the working code from
7558 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7562 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7563 made it impossible to use the same SSL_SESSION data structure in
7564 SSL2 clients in multiple threads.
7567 *) The return value of RAND_load_file() no longer counts bytes obtained
7568 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7569 to seed the PRNG (previously an explicit byte count was required).
7570 [Ulf Möller, Bodo Möller]
7572 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7573 used (char *) instead of (void *) and had casts all over the place.
7576 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7579 *) Retain source code compatibility for BN_prime_checks macro:
7580 BN_is_prime(..., BN_prime_checks, ...) now uses
7581 BN_prime_checks_for_size to determine the appropriate number of
7582 Rabin-Miller iterations.
7585 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7586 DH_CHECK_P_NOT_SAFE_PRIME.
7587 (Check if this is true? OpenPGP calls them "strong".)
7590 *) Merge the functionality of "dh" and "gendh" programs into a new program
7591 "dhparam". The old programs are retained for now but will handle DH keys
7592 (instead of parameters) in future.
7595 *) Make the ciphers, s_server and s_client programs check the return values
7596 when a new cipher list is set.
7599 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7600 ciphers. Before when the 56bit ciphers were enabled the sorting was
7603 The syntax for the cipher sorting has been extended to support sorting by
7604 cipher-strength (using the strength_bits hard coded in the tables).
7605 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7607 Fix a bug in the cipher-command parser: when supplying a cipher command
7608 string with an "undefined" symbol (neither command nor alphanumeric
7609 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7610 an error is flagged.
7612 Due to the strength-sorting extension, the code of the
7613 ssl_create_cipher_list() function was completely rearranged. I hope that
7614 the readability was also increased :-)
7615 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7617 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7618 for the first serial number and places 2 in the serial number file. This
7619 avoids problems when the root CA is created with serial number zero and
7620 the first user certificate has the same issuer name and serial number
7624 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7625 the new code. Add documentation for this stuff.
7628 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7629 X509_*() to X509at_*() on the grounds that they don't handle X509
7630 structures and behave in an analagous way to the X509v3 functions:
7631 they shouldn't be called directly but wrapper functions should be used
7634 So we also now have some wrapper functions that call the X509at functions
7635 when passed certificate requests. (TO DO: similar things can be done with
7636 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7637 things. Some of these need some d2i or i2d and print functionality
7638 because they handle more complex structures.)
7641 *) Add missing #ifndefs that caused missing symbols when building libssl
7642 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7643 NO_RSA in ssl/s2*.c.
7644 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7646 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7647 has a return value which indicates the quality of the random data
7648 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7649 error queue. New function RAND_pseudo_bytes() generates output that is
7650 guaranteed to be unique but not unpredictable. RAND_add is like
7651 RAND_seed, but takes an extra argument for an entropy estimate
7652 (RAND_seed always assumes full entropy).
7655 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7656 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7657 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7658 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7659 false-positive rate of at most 2^-80 for random input.
7662 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7665 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7666 in the 0.9.5 release), this returns the chain
7667 from an X509_CTX structure with a dup of the stack and all
7668 the X509 reference counts upped: so the stack will exist
7669 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7672 Also make SSL_SESSION_print() print out the verify return
7676 *) Add manpage for the pkcs12 command. Also change the default
7677 behaviour so MAC iteration counts are used unless the new
7678 -nomaciter option is used. This improves file security and
7679 only older versions of MSIE (4.0 for example) need it.
7682 *) Honor the no-xxx Configure options when creating .DEF files.
7685 *) Add PKCS#10 attributes to field table: challengePassword,
7686 unstructuredName and unstructuredAddress. These are taken from
7687 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7688 international characters are used.
7690 More changes to X509_ATTRIBUTE code: allow the setting of types
7691 based on strings. Remove the 'loc' parameter when adding
7692 attributes because these will be a SET OF encoding which is sorted
7696 *) Initial changes to the 'req' utility to allow request generation
7697 automation. This will allow an application to just generate a template
7698 file containing all the field values and have req construct the
7701 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7702 used all over the place including certificate requests and PKCS#7
7703 structures. They are currently handled manually where necessary with
7704 some primitive wrappers for PKCS#7. The new functions behave in a
7705 manner analogous to the X509 extension functions: they allow
7706 attributes to be looked up by NID and added.
7708 Later something similar to the X509V3 code would be desirable to
7709 automatically handle the encoding, decoding and printing of the
7710 more complex types. The string types like challengePassword can
7711 be handled by the string table functions.
7713 Also modified the multi byte string table handling. Now there is
7714 a 'global mask' which masks out certain types. The table itself
7715 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7716 is useful when for example there is only one permissible type
7717 (as in countryName) and using the mask might result in no valid
7721 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7722 SSL_get_peer_finished to allow applications to obtain the latest
7723 Finished messages sent to the peer or expected from the peer,
7724 respectively. (SSL_get_peer_finished is usually the Finished message
7725 actually received from the peer, otherwise the protocol will be aborted.)
7727 As the Finished message are message digests of the complete handshake
7728 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7729 be used for external authentication procedures when the authentication
7730 provided by SSL/TLS is not desired or is not enough.
7733 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7734 the host supports BWX extension and if Compaq C is present on the
7735 $PATH. Just exploiting of the BWX extension results in 20-30%
7736 performance kick for some algorithms, e.g. DES and RC4 to mention
7737 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7741 *) Add support for MS "fast SGC". This is arguably a violation of the
7742 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7743 weak crypto and after checking the certificate is SGC a second one
7744 with strong crypto. MS SGC stops the first handshake after receiving
7745 the server certificate message and sends a second client hello. Since
7746 a server will typically do all the time consuming operations before
7747 expecting any further messages from the client (server key exchange
7748 is the most expensive) there is little difference between the two.
7750 To get OpenSSL to support MS SGC we have to permit a second client
7751 hello message after we have sent server done. In addition we have to
7752 reset the MAC if we do get this second client hello.
7755 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7756 if a DER encoded private key is RSA or DSA traditional format. Changed
7757 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7758 format DER encoded private key. Newer code should use PKCS#8 format which
7759 has the key type encoded in the ASN1 structure. Added DER private key
7760 support to pkcs8 application.
7763 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7764 ciphersuites has been selected (as required by the SSL 3/TLS 1
7765 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7766 is set, we interpret this as a request to violate the specification
7767 (the worst that can happen is a handshake failure, and 'correct'
7768 behaviour would result in a handshake failure anyway).
7771 *) In SSL_CTX_add_session, take into account that there might be multiple
7772 SSL_SESSION structures with the same session ID (e.g. when two threads
7773 concurrently obtain them from an external cache).
7774 The internal cache can handle only one SSL_SESSION with a given ID,
7775 so if there's a conflict, we now throw out the old one to achieve
7779 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7780 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7781 some routines that use cipher OIDs: some ciphers do not have OIDs
7782 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7786 *) Simplify the trust setting structure and code. Now we just have
7787 two sequences of OIDs for trusted and rejected settings. These will
7788 typically have values the same as the extended key usage extension
7789 and any application specific purposes.
7791 The trust checking code now has a default behaviour: it will just
7792 check for an object with the same NID as the passed id. Functions can
7793 be provided to override either the default behaviour or the behaviour
7794 for a given id. SSL client, server and email already have functions
7795 in place for compatibility: they check the NID and also return "trusted"
7796 if the certificate is self signed.
7799 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7800 traditional format into an EVP_PKEY structure.
7803 *) Add a password callback function PEM_cb() which either prompts for
7804 a password if usr_data is NULL or otherwise assumes it is a null
7805 terminated password. Allow passwords to be passed on command line
7806 environment or config files in a few more utilities.
7809 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7810 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7811 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7812 Update documentation.
7815 *) Support for ASN1 "NULL" type. This could be handled before by using
7816 ASN1_TYPE but there wasn't any function that would try to read a NULL
7817 and produce an error if it couldn't. For compatibility we also have
7818 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7819 don't allocate anything because they don't need to.
7822 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7824 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7826 *) Rebuild of the memory allocation routines used by OpenSSL code and
7827 possibly others as well. The purpose is to make an interface that
7828 provide hooks so anyone can build a separate set of allocation and
7829 deallocation routines to be used by OpenSSL, for example memory
7830 pool implementations, or something else, which was previously hard
7831 since Malloc(), Realloc() and Free() were defined as macros having
7832 the values malloc, realloc and free, respectively (except for Win32
7833 compilations). The same is provided for memory debugging code.
7834 OpenSSL already comes with functionality to find memory leaks, but
7835 this gives people a chance to debug other memory problems.
7837 With these changes, a new set of functions and macros have appeared:
7839 CRYPTO_set_mem_debug_functions() [F]
7840 CRYPTO_get_mem_debug_functions() [F]
7841 CRYPTO_dbg_set_options() [F]
7842 CRYPTO_dbg_get_options() [F]
7843 CRYPTO_malloc_debug_init() [M]
7845 The memory debug functions are NULL by default, unless the library
7846 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7847 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7848 gives the standard debugging functions that come with OpenSSL) or
7849 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7850 provided by the library user) must be used. When the standard
7851 debugging functions are used, CRYPTO_dbg_set_options can be used to
7852 request additional information:
7853 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7854 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7856 Also, things like CRYPTO_set_mem_functions will always give the
7857 expected result (the new set of functions is used for allocation
7858 and deallocation) at all times, regardless of platform and compiler
7861 To finish it up, some functions that were never use in any other
7862 way than through macros have a new API and new semantic:
7865 CRYPTO_dbg_realloc()
7868 All macros of value have retained their old syntax.
7869 [Richard Levitte and Bodo Moeller]
7871 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7872 ordering of SMIMECapabilities wasn't in "strength order" and there
7873 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7877 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7878 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7879 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7881 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7882 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7883 functionality to handle multipart/signed properly) and a utility
7884 called 'smime' to call all this stuff. This is based on code I
7885 originally wrote for Celo who have kindly allowed it to be
7886 included in OpenSSL.
7889 *) Add variants des_set_key_checked and des_set_key_unchecked of
7890 des_set_key (aka des_key_sched). Global variable des_check_key
7891 decides which of these is called by des_set_key; this way
7892 des_check_key behaves as it always did, but applications and
7893 the library itself, which was buggy for des_check_key == 1,
7894 have a cleaner way to pick the version they need.
7897 *) New function PKCS12_newpass() which changes the password of a
7901 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7902 dynamic mix. In both cases the ids can be used as an index into the
7903 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7904 functions so they accept a list of the field values and the
7905 application doesn't need to directly manipulate the X509_TRUST
7909 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7913 *) Modify the way the V3 extension code looks up extensions. This now
7914 works in a similar way to the object code: we have some "standard"
7915 extensions in a static table which is searched with OBJ_bsearch()
7916 and the application can add dynamic ones if needed. The file
7917 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7918 updated whenever a new extension is added to the core code and kept
7919 in ext_nid order. There is a simple program 'tabtest.c' which checks
7920 this. New extensions are not added too often so this file can readily
7921 be maintained manually.
7923 There are two big advantages in doing things this way. The extensions
7924 can be looked up immediately and no longer need to be "added" using
7925 X509V3_add_standard_extensions(): this function now does nothing.
7926 [Side note: I get *lots* of email saying the extension code doesn't
7927 work because people forget to call this function]
7928 Also no dynamic allocation is done unless new extensions are added:
7929 so if we don't add custom extensions there is no need to call
7930 X509V3_EXT_cleanup().
7933 *) Modify enc utility's salting as follows: make salting the default. Add a
7934 magic header, so unsalted files fail gracefully instead of just decrypting
7935 to garbage. This is because not salting is a big security hole, so people
7936 should be discouraged from doing it.
7939 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7940 digest to be passed on the command line but it only used this
7941 parameter when signing a certificate. Modified so all relevant
7942 operations are affected by the digest parameter including the
7943 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7944 DSA key was used because it didn't fix the digest.
7947 *) Initial certificate chain verify code. Currently tests the untrusted
7948 certificates for consistency with the verify purpose (which is set
7949 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7951 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7952 this is because it will reject chains with invalid extensions whereas
7953 every previous version of OpenSSL and SSLeay made no checks at all.
7955 Trust code: checks the root CA for the relevant trust settings. Trust
7956 settings have an initial value consistent with the verify purpose: e.g.
7957 if the verify purpose is for SSL client use it expects the CA to be
7958 trusted for SSL client use. However the default value can be changed to
7959 permit custom trust settings: one example of this would be to only trust
7960 certificates from a specific "secure" set of CAs.
7962 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7963 which should be used for version portability: especially since the
7964 verify structure is likely to change more often now.
7966 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7967 to set them. If not set then assume SSL clients will verify SSL servers
7970 Two new options to the verify program: -untrusted allows a set of
7971 untrusted certificates to be passed in and -purpose which sets the
7972 intended purpose of the certificate. If a purpose is set then the
7973 new chain verify code is used to check extension consistency.
7976 *) Support for the authority information access extension.
7979 *) Modify RSA and DSA PEM read routines to transparently handle
7980 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7981 public keys in a format compatible with certificate
7982 SubjectPublicKeyInfo structures. Unfortunately there were already
7983 functions called *_PublicKey_* which used various odd formats so
7984 these are retained for compatibility: however the DSA variants were
7985 never in a public release so they have been deleted. Changed dsa/rsa
7986 utilities to handle the new format: note no releases ever handled public
7987 keys so we should be OK.
7989 The primary motivation for this change is to avoid the same fiasco
7990 that dogs private keys: there are several incompatible private key
7991 formats some of which are standard and some OpenSSL specific and
7992 require various evil hacks to allow partial transparent handling and
7993 even then it doesn't work with DER formats. Given the option anything
7994 other than PKCS#8 should be dumped: but the other formats have to
7995 stay in the name of compatibility.
7997 With public keys and the benefit of hindsight one standard format
7998 is used which works with EVP_PKEY, RSA or DSA structures: though
7999 it clearly returns an error if you try to read the wrong kind of key.
8001 Added a -pubkey option to the 'x509' utility to output the public key.
8002 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8003 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8004 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8005 that do the same as the EVP_PKEY_assign_*() except they up the
8006 reference count of the added key (they don't "swallow" the
8010 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8011 CRLs would fail if the file contained no certificates or no CRLs:
8012 added a new function to read in both types and return the number
8013 read: this means that if none are read it will be an error. The
8014 DER versions of the certificate and CRL reader would always fail
8015 because it isn't possible to mix certificates and CRLs in DER format
8016 without choking one or the other routine. Changed this to just read
8017 a certificate: this is the best we can do. Also modified the code
8018 in apps/verify.c to take notice of return codes: it was previously
8019 attempting to read in certificates from NULL pointers and ignoring
8020 any errors: this is one reason why the cert and CRL reader seemed
8021 to work. It doesn't check return codes from the default certificate
8022 routines: these may well fail if the certificates aren't installed.
8025 *) Code to support otherName option in GeneralName.
8028 *) First update to verify code. Change the verify utility
8029 so it warns if it is passed a self signed certificate:
8030 for consistency with the normal behaviour. X509_verify
8031 has been modified to it will now verify a self signed
8032 certificate if *exactly* the same certificate appears
8033 in the store: it was previously impossible to trust a
8034 single self signed certificate. This means that:
8035 openssl verify ss.pem
8036 now gives a warning about a self signed certificate but
8037 openssl verify -CAfile ss.pem ss.pem
8041 *) For servers, store verify_result in SSL_SESSION data structure
8042 (and add it to external session representation).
8043 This is needed when client certificate verifications fails,
8044 but an application-provided verification callback (set by
8045 SSL_CTX_set_cert_verify_callback) allows accepting the session
8046 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8047 but returns 1): When the session is reused, we have to set
8048 ssl->verify_result to the appropriate error code to avoid
8050 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8052 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8053 case in PKCS7_dataInit() where the signed PKCS7 structure
8054 didn't contain any existing data because it was being created.
8055 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8057 *) Add a salt to the key derivation routines in enc.c. This
8058 forms the first 8 bytes of the encrypted file. Also add a
8059 -S option to allow a salt to be input on the command line.
8062 *) New function X509_cmp(). Oddly enough there wasn't a function
8063 to compare two certificates. We do this by working out the SHA1
8064 hash and comparing that. X509_cmp() will be needed by the trust
8068 *) SSL_get1_session() is like SSL_get_session(), but increments
8069 the reference count in the SSL_SESSION returned.
8070 [Geoff Thorpe <geoff@eu.c2.net>]
8072 *) Fix for 'req': it was adding a null to request attributes.
8073 Also change the X509_LOOKUP and X509_INFO code to handle
8074 certificate auxiliary information.
8077 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8081 *) Add the possibility to add extra information to the memory leak
8082 detecting output, to form tracebacks, showing from where each
8083 allocation was originated: CRYPTO_push_info("constant string") adds
8084 the string plus current file name and line number to a per-thread
8085 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8086 is like calling CYRPTO_pop_info() until the stack is empty.
8087 Also updated memory leak detection code to be multi-thread-safe.
8090 *) Add options -text and -noout to pkcs7 utility and delete the
8091 encryption options which never did anything. Update docs.
8094 *) Add options to some of the utilities to allow the pass phrase
8095 to be included on either the command line (not recommended on
8096 OSes like Unix) or read from the environment. Update the
8097 manpages and fix a few bugs.
8100 *) Add a few manpages for some of the openssl commands.
8103 *) Fix the -revoke option in ca. It was freeing up memory twice,
8104 leaking and not finding already revoked certificates.
8107 *) Extensive changes to support certificate auxiliary information.
8108 This involves the use of X509_CERT_AUX structure and X509_AUX
8109 functions. An X509_AUX function such as PEM_read_X509_AUX()
8110 can still read in a certificate file in the usual way but it
8111 will also read in any additional "auxiliary information". By
8112 doing things this way a fair degree of compatibility can be
8113 retained: existing certificates can have this information added
8114 using the new 'x509' options.
8116 Current auxiliary information includes an "alias" and some trust
8117 settings. The trust settings will ultimately be used in enhanced
8118 certificate chain verification routines: currently a certificate
8119 can only be trusted if it is self signed and then it is trusted
8123 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8124 The problem was that one of the replacement routines had not been working
8125 since SSLeay releases. For now the offending routine has been replaced
8126 with non-optimised assembler. Even so, this now gives around 95%
8127 performance improvement for 1024 bit RSA signs.
8130 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8131 handling. Most clients have the effective key size in bits equal to
8132 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8133 A few however don't do this and instead use the size of the decrypted key
8134 to determine the RC2 key length and the AlgorithmIdentifier to determine
8135 the effective key length. In this case the effective key length can still
8136 be 40 bits but the key length can be 168 bits for example. This is fixed
8137 by manually forcing an RC2 key into the EVP_PKEY structure because the
8138 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8139 the key length and effective key length are equal.
8142 *) Add a bunch of functions that should simplify the creation of
8143 X509_NAME structures. Now you should be able to do:
8144 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8145 and have it automatically work out the correct field type and fill in
8146 the structures. The more adventurous can try:
8147 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8148 and it will (hopefully) work out the correct multibyte encoding.
8151 *) Change the 'req' utility to use the new field handling and multibyte
8152 copy routines. Before the DN field creation was handled in an ad hoc
8153 way in req, ca, and x509 which was rather broken and didn't support
8154 BMPStrings or UTF8Strings. Since some software doesn't implement
8155 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8156 using the dirstring_type option. See the new comment in the default
8157 openssl.cnf for more info.
8160 *) Make crypto/rand/md_rand.c more robust:
8161 - Assure unique random numbers after fork().
8162 - Make sure that concurrent threads access the global counter and
8163 md serializably so that we never lose entropy in them
8164 or use exactly the same state in multiple threads.
8165 Access to the large state is not always serializable because
8166 the additional locking could be a performance killer, and
8167 md should be large enough anyway.
8170 *) New file apps/app_rand.c with commonly needed functionality
8171 for handling the random seed file.
8173 Use the random seed file in some applications that previously did not:
8175 dsaparam -genkey (which also ignored its '-rand' option),
8178 x509 (when signing).
8179 Except on systems with /dev/urandom, it is crucial to have a random
8180 seed file at least for key creation, DSA signing, and for DH exchanges;
8181 for RSA signatures we could do without one.
8183 gendh and gendsa (unlike genrsa) used to read only the first byte
8184 of each file listed in the '-rand' option. The function as previously
8185 found in genrsa is now in app_rand.c and is used by all programs
8186 that support '-rand'.
8189 *) In RAND_write_file, use mode 0600 for creating files;
8190 don't just chmod when it may be too late.
8193 *) Report an error from X509_STORE_load_locations
8194 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8197 *) New function ASN1_mbstring_copy() this copies a string in either
8198 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8199 into an ASN1_STRING type. A mask of permissible types is passed
8200 and it chooses the "minimal" type to use or an error if not type
8204 *) Add function equivalents to the various macros in asn1.h. The old
8205 macros are retained with an M_ prefix. Code inside the library can
8206 use the M_ macros. External code (including the openssl utility)
8207 should *NOT* in order to be "shared library friendly".
8210 *) Add various functions that can check a certificate's extensions
8211 to see if it usable for various purposes such as SSL client,
8212 server or S/MIME and CAs of these types. This is currently
8213 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8214 verification. Also added a -purpose flag to x509 utility to
8215 print out all the purposes.
8218 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8222 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8223 for, obtain and decode and extension and obtain its critical flag.
8224 This allows all the necessary extension code to be handled in a
8225 single function call.
8228 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8229 platforms. See crypto/rc4/rc4_enc.c for further details.
8232 *) New -noout option to asn1parse. This causes no output to be produced
8233 its main use is when combined with -strparse and -out to extract data
8234 from a file (which may not be in ASN.1 format).
8237 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8238 when producing the local key id.
8239 [Richard Levitte <levitte@stacken.kth.se>]
8241 *) New option -dhparam in s_server. This allows a DH parameter file to be
8242 stated explicitly. If it is not stated then it tries the first server
8243 certificate file. The previous behaviour hard coded the filename
8247 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8248 a public key to be input or output. For example:
8249 openssl rsa -in key.pem -pubout -out pubkey.pem
8250 Also added necessary DSA public key functions to handle this.
8253 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8254 in the message. This was handled by allowing
8255 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8256 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8258 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8259 to the end of the strings whereas this didn't. This would cause problems
8260 if strings read with d2i_ASN1_bytes() were later modified.
8261 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8263 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8264 data and it contains EOF it will end up returning an error. This is
8265 caused by input 46 bytes long. The cause is due to the way base64
8266 BIOs find the start of base64 encoded data. They do this by trying a
8267 trial decode on each line until they find one that works. When they
8268 do a flag is set and it starts again knowing it can pass all the
8269 data directly through the decoder. Unfortunately it doesn't reset
8270 the context it uses. This means that if EOF is reached an attempt
8271 is made to pass two EOFs through the context and this causes the
8272 resulting error. This can also cause other problems as well. As is
8273 usual with these problems it takes *ages* to find and the fix is
8274 trivial: move one line.
8275 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8277 *) Ugly workaround to get s_client and s_server working under Windows. The
8278 old code wouldn't work because it needed to select() on sockets and the
8279 tty (for keypresses and to see if data could be written). Win32 only
8280 supports select() on sockets so we select() with a 1s timeout on the
8281 sockets and then see if any characters are waiting to be read, if none
8282 are present then we retry, we also assume we can always write data to
8283 the tty. This isn't nice because the code then blocks until we've
8284 received a complete line of data and it is effectively polling the
8285 keyboard at 1s intervals: however it's quite a bit better than not
8286 working at all :-) A dedicated Windows application might handle this
8287 with an event loop for example.
8290 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8291 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8292 will be called when RSA_sign() and RSA_verify() are used. This is useful
8293 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8294 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8295 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8296 This necessitated the support of an extra signature type NID_md5_sha1
8297 for SSL signatures and modifications to the SSL library to use it instead
8298 of calling RSA_public_decrypt() and RSA_private_encrypt().
8301 *) Add new -verify -CAfile and -CApath options to the crl program, these
8302 will lookup a CRL issuers certificate and verify the signature in a
8303 similar way to the verify program. Tidy up the crl program so it
8304 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8305 less strict. It will now permit CRL extensions even if it is not
8306 a V2 CRL: this will allow it to tolerate some broken CRLs.
8309 *) Initialize all non-automatic variables each time one of the openssl
8310 sub-programs is started (this is necessary as they may be started
8311 multiple times from the "OpenSSL>" prompt).
8312 [Lennart Bang, Bodo Moeller]
8314 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8315 removing all other RSA functionality (this is what NO_RSA does). This
8316 is so (for example) those in the US can disable those operations covered
8317 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8321 *) Non-copying interface to BIO pairs.
8322 (still largely untested)
8325 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8326 ASCII string. This was handled independently in various places before.
8329 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8330 UTF8 strings a character at a time.
8333 *) Use client_version from client hello to select the protocol
8334 (s23_srvr.c) and for RSA client key exchange verification
8335 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8338 *) Add various utility functions to handle SPKACs, these were previously
8339 handled by poking round in the structure internals. Added new function
8340 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8341 print, verify and generate SPKACs. Based on an original idea from
8342 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8345 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8348 *) Allow the config file extension section to be overwritten on the
8349 command line. Based on an original idea from Massimiliano Pala
8350 <madwolf@comune.modena.it>. The new option is called -extensions
8351 and can be applied to ca, req and x509. Also -reqexts to override
8352 the request extensions in req and -crlexts to override the crl extensions
8356 *) Add new feature to the SPKAC handling in ca. Now you can include
8357 the same field multiple times by preceding it by "XXXX." for example:
8360 this is the same syntax as used in the req config file.
8363 *) Allow certificate extensions to be added to certificate requests. These
8364 are specified in a 'req_extensions' option of the req section of the
8365 config file. They can be printed out with the -text option to req but
8366 are otherwise ignored at present.
8369 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8370 data read consists of only the final block it would not decrypted because
8371 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8372 A misplaced 'break' also meant the decrypted final block might not be
8373 copied until the next read.
8376 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8377 a few extra parameters to the DH structure: these will be useful if
8378 for example we want the value of 'q' or implement X9.42 DH.
8381 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8382 provides hooks that allow the default DSA functions or functions on a
8383 "per key" basis to be replaced. This allows hardware acceleration and
8384 hardware key storage to be handled without major modification to the
8385 library. Also added low level modexp hooks and CRYPTO_EX structure and
8386 associated functions.
8389 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8390 as "read only": it can't be written to and the buffer it points to will
8391 not be freed. Reading from a read only BIO is much more efficient than
8392 a normal memory BIO. This was added because there are several times when
8393 an area of memory needs to be read from a BIO. The previous method was
8394 to create a memory BIO and write the data to it, this results in two
8395 copies of the data and an O(n^2) reading algorithm. There is a new
8396 function BIO_new_mem_buf() which creates a read only memory BIO from
8397 an area of memory. Also modified the PKCS#7 routines to use read only
8401 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8402 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8403 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8404 but a retry condition occured while trying to read the rest.
8407 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8408 NID_pkcs7_encrypted by default: this was wrong since this should almost
8409 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8410 the encrypted data type: this is a more sensible place to put it and it
8411 allows the PKCS#12 code to be tidied up that duplicated this
8415 *) Changed obj_dat.pl script so it takes its input and output files on
8416 the command line. This should avoid shell escape redirection problems
8420 *) Initial support for certificate extension requests, these are included
8421 in things like Xenroll certificate requests. Included functions to allow
8422 extensions to be obtained and added.
8425 *) -crlf option to s_client and s_server for sending newlines as
8426 CRLF (as required by many protocols).
8429 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8431 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8432 [Ralf S. Engelschall]
8434 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8435 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8437 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8441 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8442 DH parameters/keys (q is lost during that conversion, but the resulting
8443 DH parameters contain its length).
8445 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8446 much faster than DH_generate_parameters (which creates parameters
8447 where p = 2*q + 1), and also the smaller q makes DH computations
8448 much more efficient (160-bit exponentiation instead of 1024-bit
8449 exponentiation); so this provides a convenient way to support DHE
8450 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8451 utter importance to use
8452 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8454 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8455 when such DH parameters are used, because otherwise small subgroup
8456 attacks may become possible!
8459 *) Avoid memory leak in i2d_DHparams.
8462 *) Allow the -k option to be used more than once in the enc program:
8463 this allows the same encrypted message to be read by multiple recipients.
8466 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8467 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8468 it will always use the numerical form of the OID, even if it has a short
8472 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8473 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8474 otherwise bn_mod_exp was called. In the case of hardware keys for example
8475 no private key components need be present and it might store extra data
8476 in the RSA structure, which cannot be accessed from bn_mod_exp.
8477 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8478 private key operations.
8481 *) Added support for SPARC Linux.
8484 *) pem_password_cb function type incompatibly changed from
8485 typedef int pem_password_cb(char *buf, int size, int rwflag);
8487 ....(char *buf, int size, int rwflag, void *userdata);
8488 so that applications can pass data to their callbacks:
8489 The PEM[_ASN1]_{read,write}... functions and macros now take an
8490 additional void * argument, which is just handed through whenever
8491 the password callback is called.
8492 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8494 New function SSL_CTX_set_default_passwd_cb_userdata.
8496 Compatibility note: As many C implementations push function arguments
8497 onto the stack in reverse order, the new library version is likely to
8498 interoperate with programs that have been compiled with the old
8499 pem_password_cb definition (PEM_whatever takes some data that
8500 happens to be on the stack as its last argument, and the callback
8501 just ignores this garbage); but there is no guarantee whatsoever that
8504 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8505 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8506 problems not only on Windows, but also on some Unix platforms.
8507 To avoid problematic command lines, these definitions are now in an
8508 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8509 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8512 *) MIPS III/IV assembler module is reimplemented.
8515 *) More DES library cleanups: remove references to srand/rand and
8516 delete an unused file.
8519 *) Add support for the the free Netwide assembler (NASM) under Win32,
8520 since not many people have MASM (ml) and it can be hard to obtain.
8521 This is currently experimental but it seems to work OK and pass all
8522 the tests. Check out INSTALL.W32 for info.
8525 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8526 without temporary keys kept an extra copy of the server key,
8527 and connections with temporary keys did not free everything in case
8531 *) New function RSA_check_key and new openssl rsa option -check
8532 for verifying the consistency of RSA keys.
8533 [Ulf Moeller, Bodo Moeller]
8535 *) Various changes to make Win32 compile work:
8536 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8537 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8538 comparison" warnings.
8539 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8542 *) Add a debugging option to PKCS#5 v2 key generation function: when
8543 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8544 derived keys are printed to stderr.
8547 *) Copy the flags in ASN1_STRING_dup().
8548 [Roman E. Pavlov <pre@mo.msk.ru>]
8550 *) The x509 application mishandled signing requests containing DSA
8551 keys when the signing key was also DSA and the parameters didn't match.
8553 It was supposed to omit the parameters when they matched the signing key:
8554 the verifying software was then supposed to automatically use the CA's
8555 parameters if they were absent from the end user certificate.
8557 Omitting parameters is no longer recommended. The test was also
8558 the wrong way round! This was probably due to unusual behaviour in
8559 EVP_cmp_parameters() which returns 1 if the parameters match.
8560 This meant that parameters were omitted when they *didn't* match and
8561 the certificate was useless. Certificates signed with 'ca' didn't have
8563 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8565 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8566 The interface is as follows:
8567 Applications can use
8568 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8569 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8570 "off" is now the default.
8571 The library internally uses
8572 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8573 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8574 to disable memory-checking temporarily.
8576 Some inconsistent states that previously were possible (and were
8577 even the default) are now avoided.
8579 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8580 with each memory chunk allocated; this is occasionally more helpful
8581 than just having a counter.
8583 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8585 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8589 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8590 which largely parallels "options", but is for changing API behaviour,
8591 whereas "options" are about protocol behaviour.
8592 Initial "mode" flags are:
8594 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8595 a single record has been written.
8596 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8597 retries use the same buffer location.
8598 (But all of the contents must be
8602 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8605 *) Fix problems with no-hmac etc.
8606 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8608 *) New functions RSA_get_default_method(), RSA_set_method() and
8609 RSA_get_method(). These allows replacement of RSA_METHODs without having
8610 to mess around with the internals of an RSA structure.
8613 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8614 Also really enable memory leak checks in openssl.c and in some
8616 [Chad C. Mulligan, Bodo Moeller]
8618 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8619 up the length of negative integers. This has now been simplified to just
8620 store the length when it is first determined and use it later, rather
8621 than trying to keep track of where data is copied and updating it to
8623 [Steve Henson, reported by Brien Wheeler
8624 <bwheeler@authentica-security.com>]
8626 *) Add a new function PKCS7_signatureVerify. This allows the verification
8627 of a PKCS#7 signature but with the signing certificate passed to the
8628 function itself. This contrasts with PKCS7_dataVerify which assumes the
8629 certificate is present in the PKCS#7 structure. This isn't always the
8630 case: certificates can be omitted from a PKCS#7 structure and be
8631 distributed by "out of band" means (such as a certificate database).
8634 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8635 function prototypes in pem.h, also change util/mkdef.pl to add the
8636 necessary function names.
8639 *) mk1mf.pl (used by Windows builds) did not properly read the
8640 options set by Configure in the top level Makefile, and Configure
8641 was not even able to write more than one option correctly.
8642 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8645 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8646 file to be loaded from a BIO or FILE pointer. The BIO version will
8647 for example allow memory BIOs to contain config info.
8650 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8651 Whoever hopes to achieve shared-library compatibility across versions
8652 must use this, not the compile-time macro.
8653 (Exercise 0.9.4: Which is the minimum library version required by
8655 Note: All this applies only to multi-threaded programs, others don't
8659 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8660 through a BIO pair triggered the default case, i.e.
8661 SSLerr(...,SSL_R_UNKNOWN_STATE).
8664 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8665 can use the SSL library even if none of the specific BIOs is
8669 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8670 for the encoded length.
8671 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8673 *) Add initial documentation of the X509V3 functions.
8676 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8677 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8678 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8679 secure PKCS#8 private key format with a high iteration count.
8682 *) Fix determination of Perl interpreter: A perl or perl5
8683 _directory_ in $PATH was also accepted as the interpreter.
8684 [Ralf S. Engelschall]
8686 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8687 wrong with it but it was very old and did things like calling
8688 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8692 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8693 to use the new extension code.
8696 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8697 with macros. This should make it easier to change their form, add extra
8698 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8702 *) Add to configuration table a new entry that can specify an alternative
8703 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8704 according to Mark Crispin <MRC@Panda.COM>.
8708 *) DES CBC did not update the IV. Weird.
8711 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8712 Changing the behaviour of the former might break existing programs --
8713 where IV updating is needed, des_ncbc_encrypt can be used.
8716 *) When bntest is run from "make test" it drives bc to check its
8717 calculations, as well as internally checking them. If an internal check
8718 fails, it needs to cause bc to give a non-zero result or make test carries
8719 on without noticing the failure. Fixed.
8722 *) DES library cleanups.
8725 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8726 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8727 ciphers. NOTE: although the key derivation function has been verified
8728 against some published test vectors it has not been extensively tested
8729 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8733 *) Instead of "mkdir -p", which is not fully portable, use new
8734 Perl script "util/mkdir-p.pl".
8737 *) Rewrite the way password based encryption (PBE) is handled. It used to
8738 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8739 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8740 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8741 the 'parameter' field of the AlgorithmIdentifier is passed to the
8742 underlying key generation function so it must do its own ASN1 parsing.
8743 This has also changed the EVP_PBE_CipherInit() function which now has a
8744 'parameter' argument instead of literal salt and iteration count values
8745 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8748 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8749 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8750 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8751 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8752 value was just used as a "magic string" and not used directly its
8753 value doesn't matter.
8756 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8760 *) "linux-sparc64" configuration (ultrapenguin).
8761 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8762 "linux-sparc" configuration.
8763 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8765 *) config now generates no-xxx options for missing ciphers.
8768 *) Support the EBCDIC character set (work in progress).
8769 File ebcdic.c not yet included because it has a different license.
8770 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8772 *) Support BS2000/OSD-POSIX.
8773 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8775 *) Make callbacks for key generation use void * instead of char *.
8778 *) Make S/MIME samples compile (not yet tested).
8781 *) Additional typesafe stacks.
8784 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8788 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8790 *) New configuration variant "sco5-gcc".
8792 *) Updated some demos.
8793 [Sean O Riordain, Wade Scholine]
8795 *) Add missing BIO_free at exit of pkcs12 application.
8798 *) Fix memory leak in conf.c.
8801 *) Updates for Win32 to assembler version of MD5.
8804 *) Set #! path to perl in apps/der_chop to where we found it
8805 instead of using a fixed path.
8808 *) SHA library changes for irix64-mips4-cc.
8811 *) Improvements for VMS support.
8815 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8817 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8818 This also avoids the problems with SC4.2 and unpatched SC5.
8819 [Andy Polyakov <appro@fy.chalmers.se>]
8821 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8822 These are required because of the typesafe stack would otherwise break
8823 existing code. If old code used a structure member which used to be STACK
8824 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8825 sk_num or sk_value it would produce an error because the num, data members
8826 are not present in STACK_OF. Now it just produces a warning. sk_set
8827 replaces the old method of assigning a value to sk_value
8828 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8829 that does this will no longer work (and should use sk_set instead) but
8830 this could be regarded as a "questionable" behaviour anyway.
8833 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8834 correctly handle encrypted S/MIME data.
8837 *) Change type of various DES function arguments from des_cblock
8838 (which means, in function argument declarations, pointer to char)
8839 to des_cblock * (meaning pointer to array with 8 char elements),
8840 which allows the compiler to do more typechecking; it was like
8841 that back in SSLeay, but with lots of ugly casts.
8843 Introduce new type const_des_cblock.
8846 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8847 problems: find RecipientInfo structure that matches recipient certificate
8848 and initialise the ASN1 structures properly based on passed cipher.
8851 *) Belatedly make the BN tests actually check the results.
8854 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8855 to and from BNs: it was completely broken. New compilation option
8856 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8857 key elements as negative integers.
8860 *) Reorganize and speed up MD5.
8861 [Andy Polyakov <appro@fy.chalmers.se>]
8864 [Richard Levitte <richard@levitte.org>]
8866 *) New option -out to asn1parse to allow the parsed structure to be
8867 output to a file. This is most useful when combined with the -strparse
8868 option to examine the output of things like OCTET STRINGS.
8871 *) Make SSL library a little more fool-proof by not requiring any longer
8872 that SSL_set_{accept,connect}_state be called before
8873 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8874 in many applications because usually everything *appeared* to work as
8875 intended anyway -- now it really works as intended).
8878 *) Move openssl.cnf out of lib/.
8881 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8882 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8883 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8884 [Ralf S. Engelschall]
8886 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8887 handle PKCS#7 enveloped data properly.
8888 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8890 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8891 copying pointers. The cert_st handling is changed by this in
8892 various ways (and thus what used to be known as ctx->default_cert
8893 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8894 any longer when s->cert does not give us what we need).
8895 ssl_cert_instantiate becomes obsolete by this change.
8896 As soon as we've got the new code right (possibly it already is?),
8897 we have solved a couple of bugs of the earlier code where s->cert
8898 was used as if it could not have been shared with other SSL structures.
8900 Note that using the SSL API in certain dirty ways now will result
8901 in different behaviour than observed with earlier library versions:
8902 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8903 does not influence s as it used to.
8905 In order to clean up things more thoroughly, inside SSL_SESSION
8906 we don't use CERT any longer, but a new structure SESS_CERT
8907 that holds per-session data (if available); currently, this is
8908 the peer's certificate chain and, for clients, the server's certificate
8909 and temporary key. CERT holds only those values that can have
8910 meaningful defaults in an SSL_CTX.
8913 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8914 from the internal representation. Various PKCS#7 fixes: remove some
8915 evil casts and set the enc_dig_alg field properly based on the signing
8919 *) Allow PKCS#12 password to be set from the command line or the
8920 environment. Let 'ca' get its config file name from the environment
8921 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8925 *) Allow certificate policies extension to use an IA5STRING for the
8926 organization field. This is contrary to the PKIX definition but
8927 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8931 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8932 without disallowing inline assembler and the like for non-pedantic builds.
8935 *) Support Borland C++ builder.
8936 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8941 *) SHA-1 cleanups and performance enhancements.
8942 [Andy Polyakov <appro@fy.chalmers.se>]
8944 *) Sparc v8plus assembler for the bignum library.
8945 [Andy Polyakov <appro@fy.chalmers.se>]
8947 *) Accept any -xxx and +xxx compiler options in Configure.
8950 *) Update HPUX configuration.
8953 *) Add missing sk_<type>_unshift() function to safestack.h
8954 [Ralf S. Engelschall]
8956 *) New function SSL_CTX_use_certificate_chain_file that sets the
8957 "extra_cert"s in addition to the certificate. (This makes sense
8958 only for "PEM" format files, as chains as a whole are not
8962 *) Support verify_depth from the SSL API.
8963 x509_vfy.c had what can be considered an off-by-one-error:
8964 Its depth (which was not part of the external interface)
8965 was actually counting the number of certificates in a chain;
8966 now it really counts the depth.
8969 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8970 instead of X509err, which often resulted in confusing error
8971 messages since the error codes are not globally unique
8972 (e.g. an alleged error in ssl3_accept when a certificate
8973 didn't match the private key).
8975 *) New function SSL_CTX_set_session_id_context that allows to set a default
8976 value (so that you don't need SSL_set_session_id_context for each
8977 connection using the SSL_CTX).
8980 *) OAEP decoding bug fix.
8983 *) Support INSTALL_PREFIX for package builders, as proposed by
8987 *) New Configure options "threads" and "no-threads". For systems
8988 where the proper compiler options are known (currently Solaris
8989 and Linux), "threads" is the default.
8992 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8995 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8996 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8997 such as /usr/local/bin.
9000 *) "make linux-shared" to build shared libraries.
9001 [Niels Poppe <niels@netbox.org>]
9003 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9006 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9007 extension adding in x509 utility.
9010 *) Remove NOPROTO sections and error code comments.
9013 *) Partial rewrite of the DEF file generator to now parse the ANSI
9017 *) New Configure options --prefix=DIR and --openssldir=DIR.
9020 *) Complete rewrite of the error code script(s). It is all now handled
9021 by one script at the top level which handles error code gathering,
9022 header rewriting and C source file generation. It should be much better
9023 than the old method: it now uses a modified version of Ulf's parser to
9024 read the ANSI prototypes in all header files (thus the old K&R definitions
9025 aren't needed for error creation any more) and do a better job of
9026 translating function codes into names. The old 'ASN1 error code imbedded
9027 in a comment' is no longer necessary and it doesn't use .err files which
9028 have now been deleted. Also the error code call doesn't have to appear all
9029 on one line (which resulted in some large lines...).
9032 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9035 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9036 0 (which usually indicates a closed connection), but continue reading.
9039 *) Fix some race conditions.
9042 *) Add support for CRL distribution points extension. Add Certificate
9043 Policies and CRL distribution points documentation.
9046 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9049 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9050 8 of keying material. Merlin has also confirmed interop with this fix
9051 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9052 [Merlin Hughes <merlin@baltimore.ie>]
9054 *) Fix lots of warnings.
9055 [Richard Levitte <levitte@stacken.kth.se>]
9057 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9058 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9059 [Richard Levitte <levitte@stacken.kth.se>]
9061 *) Fix problems with sizeof(long) == 8.
9062 [Andy Polyakov <appro@fy.chalmers.se>]
9064 *) Change functions to ANSI C.
9067 *) Fix typos in error codes.
9068 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9070 *) Remove defunct assembler files from Configure.
9073 *) SPARC v8 assembler BIGNUM implementation.
9074 [Andy Polyakov <appro@fy.chalmers.se>]
9076 *) Support for Certificate Policies extension: both print and set.
9077 Various additions to support the r2i method this uses.
9080 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9081 return a const string when you are expecting an allocated buffer.
9084 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9085 types DirectoryString and DisplayText.
9088 *) Add code to allow r2i extensions to access the configuration database,
9089 add an LHASH database driver and add several ctx helper functions.
9092 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9093 fail when they extended the size of a BIGNUM.
9096 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9097 support typesafe stack.
9100 *) Fix typo in SSL_[gs]et_options().
9101 [Nils Frostberg <nils@medcom.se>]
9103 *) Delete various functions and files that belonged to the (now obsolete)
9104 old X509V3 handling code.
9107 *) New Configure option "rsaref".
9110 *) Don't auto-generate pem.h.
9113 *) Introduce type-safe ASN.1 SETs.
9116 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9117 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9119 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9120 that links with OpenSSL (well at least cause lots of warnings), but fear
9121 not: the conversion is trivial, and it eliminates loads of evil casts. A
9122 few STACKed things have been converted already. Feel free to convert more.
9123 In the fullness of time, I'll do away with the STACK type altogether.
9126 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9127 specified in <certfile> by updating the entry in the index.txt file.
9128 This way one no longer has to edit the index.txt file manually for
9129 revoking a certificate. The -revoke option does the gory details now.
9130 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9132 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9133 `-text' option at all and this way the `-noout -text' combination was
9134 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9135 [Ralf S. Engelschall]
9137 *) Make sure a corresponding plain text error message exists for the
9138 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9139 verify callback function determined that a certificate was revoked.
9140 [Ralf S. Engelschall]
9142 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9143 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9144 all available cipers including rc5, which was forgotten until now.
9145 In order to let the testing shell script know which algorithms
9146 are available, a new (up to now undocumented) command
9147 "openssl list-cipher-commands" is used.
9150 *) Bugfix: s_client occasionally would sleep in select() when
9151 it should have checked SSL_pending() first.
9154 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9155 the raw DSA values prior to ASN.1 encoding.
9158 *) Tweaks to Configure
9159 [Niels Poppe <niels@netbox.org>]
9161 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9165 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9168 *) New config option to avoid instructions that are illegal on the 80386.
9169 The default code is faster, but requires at least a 486.
9172 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9173 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9174 same as SSL2_VERSION anyway.
9177 *) New "-showcerts" option for s_client.
9180 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9181 application. Various cleanups and fixes.
9184 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9185 modify error routines to work internally. Add error codes and PBE init
9186 to library startup routines.
9189 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9190 packing functions to asn1 and evp. Changed function names and error
9191 codes along the way.
9194 *) PKCS12 integration: and so it begins... First of several patches to
9195 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9196 objects to objects.h
9199 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9200 and display support for Thawte strong extranet extension.
9203 *) Add LinuxPPC support.
9204 [Jeff Dubrule <igor@pobox.org>]
9206 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9207 bn_div_words in alpha.s.
9208 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9210 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9211 OAEP isn't supported when OpenSSL is built with RSAref.
9212 [Ulf Moeller <ulf@fitug.de>]
9214 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9215 so they no longer are missing under -DNOPROTO.
9216 [Soren S. Jorvang <soren@t.dk>]
9219 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9221 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9222 doesn't work when the session is reused. Coming soon!
9225 *) Fix a security hole, that allows sessions to be reused in the wrong
9226 context thus bypassing client cert protection! All software that uses
9227 client certs and session caches in multiple contexts NEEDS PATCHING to
9228 allow session reuse! A fuller solution is in the works.
9229 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9231 *) Some more source tree cleanups (removed obsolete files
9232 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9233 permission on "config" script to be executable) and a fix for the INSTALL
9235 [Ulf Moeller <ulf@fitug.de>]
9237 *) Remove some legacy and erroneous uses of malloc, free instead of
9239 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9241 *) Make rsa_oaep_test return non-zero on error.
9242 [Ulf Moeller <ulf@fitug.de>]
9244 *) Add support for native Solaris shared libraries. Configure
9245 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9246 if someone would make that last step automatic.
9247 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9249 *) ctx_size was not built with the right compiler during "make links". Fixed.
9252 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9253 except NULL ciphers". This means the default cipher list will no longer
9254 enable NULL ciphers. They need to be specifically enabled e.g. with
9255 the string "DEFAULT:eNULL".
9258 *) Fix to RSA private encryption routines: if p < q then it would
9259 occasionally produce an invalid result. This will only happen with
9260 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9263 *) Be less restrictive and allow also `perl util/perlpath.pl
9264 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9265 because this way one can also use an interpreter named `perl5' (which is
9266 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9267 installed as `perl').
9268 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9270 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9271 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9273 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9274 advapi32.lib to Win32 build and change the pem test comparision
9275 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9276 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9277 and crypto/des/ede_cbcm_enc.c.
9280 *) DES quad checksum was broken on big-endian architectures. Fixed.
9283 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9284 Win32 test batch file so it (might) work again. The Win32 test batch file
9285 is horrible: I feel ill....
9288 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9289 in e_os.h. Audit of header files to check ANSI and non ANSI
9290 sections: 10 functions were absent from non ANSI section and not exported
9291 from Windows DLLs. Fixed up libeay.num for new functions.
9294 *) Make `openssl version' output lines consistent.
9295 [Ralf S. Engelschall]
9297 *) Fix Win32 symbol export lists for BIO functions: Added
9298 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9299 to ms/libeay{16,32}.def.
9300 [Ralf S. Engelschall]
9302 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9303 fine under Unix and passes some trivial tests I've now added. But the
9304 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9305 added to make sure no one expects that this stuff really works in the
9306 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9307 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9309 [Ralf S. Engelschall]
9311 *) Fix the generation of two part addresses in perl.
9312 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9314 *) Add config entry for Linux on MIPS.
9315 [John Tobey <jtobey@channel1.com>]
9317 *) Make links whenever Configure is run, unless we are on Windoze.
9320 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9321 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9325 *) Add a useful kludge to allow package maintainers to specify compiler and
9326 other platforms details on the command line without having to patch the
9327 Configure script everytime: One now can use ``perl Configure
9328 <id>:<details>'', i.e. platform ids are allowed to have details appended
9329 to them (seperated by colons). This is treated as there would be a static
9330 pre-configured entry in Configure's %table under key <id> with value
9331 <details> and ``perl Configure <id>'' is called. So, when you want to
9332 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9333 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9334 now, which overrides the FreeBSD-elf entry on-the-fly.
9335 [Ralf S. Engelschall]
9337 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9340 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9341 on the `perl Configure ...' command line. This way one can compile
9342 OpenSSL libraries with Position Independent Code (PIC) which is needed
9343 for linking it into DSOs.
9344 [Ralf S. Engelschall]
9346 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9350 *) Cleaned up the LICENSE document: The official contact for any license
9351 questions now is the OpenSSL core team under openssl-core@openssl.org.
9352 And add a paragraph about the dual-license situation to make sure people
9353 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9354 to the OpenSSL toolkit.
9355 [Ralf S. Engelschall]
9357 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9358 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9359 Additonally cleaned up the `make links' target: Remove unnecessary
9360 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9361 to speed processing and no longer clutter the display with confusing
9362 stuff. Instead only the actually done links are displayed.
9363 [Ralf S. Engelschall]
9365 *) Permit null encryption ciphersuites, used for authentication only. It used
9366 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9367 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9371 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9372 signed attributes when verifying signatures (this would break them),
9373 the detached data encoding was wrong and public keys obtained using
9374 X509_get_pubkey() weren't freed.
9377 *) Add text documentation for the BUFFER functions. Also added a work around
9378 to a Win95 console bug. This was triggered by the password read stuff: the
9379 last character typed gets carried over to the next fread(). If you were
9380 generating a new cert request using 'req' for example then the last
9381 character of the passphrase would be CR which would then enter the first
9385 *) Added the new `Includes OpenSSL Cryptography Software' button as
9386 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9387 button and can be used by applications based on OpenSSL to show the
9388 relationship to the OpenSSL project.
9389 [Ralf S. Engelschall]
9391 *) Remove confusing variables in function signatures in files
9392 ssl/ssl_lib.c and ssl/ssl.h.
9393 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9395 *) Don't install bss_file.c under PREFIX/include/
9396 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9398 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9399 functions that return function pointers and has support for NT specific
9400 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9401 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9402 unsigned to signed types: this was killing the Win32 compile.
9405 *) Add new certificate file to stack functions,
9406 SSL_add_dir_cert_subjects_to_stack() and
9407 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9408 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9409 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9410 This means that Apache-SSL and similar packages don't have to mess around
9411 to add as many CAs as they want to the preferred list.
9414 *) Experiment with doxygen documentation. Currently only partially applied to
9416 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9417 openssl.doxy as the configuration file.
9420 *) Get rid of remaining C++-style comments which strict C compilers hate.
9421 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9423 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9424 compiled in by default: it has problems with large keys.
9427 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9428 DH private keys and/or callback functions which directly correspond to
9429 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9430 is needed for applications which have to configure certificates on a
9431 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9433 For the RSA certificate situation is makes no difference, but
9434 for the DSA certificate situation this fixes the "no shared cipher"
9435 problem where the OpenSSL cipher selection procedure failed because the
9436 temporary keys were not overtaken from the context and the API provided
9437 no way to reconfigure them.
9438 The new functions now let applications reconfigure the stuff and they
9439 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9440 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9441 non-public-API function ssl_cert_instantiate() is used as a helper
9442 function and also to reduce code redundancy inside ssl_rsa.c.
9443 [Ralf S. Engelschall]
9445 *) Move s_server -dcert and -dkey options out of the undocumented feature
9446 area because they are useful for the DSA situation and should be
9447 recognized by the users.
9448 [Ralf S. Engelschall]
9450 *) Fix the cipher decision scheme for export ciphers: the export bits are
9451 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9452 SSL_EXP_MASK. So, the original variable has to be used instead of the
9453 already masked variable.
9454 [Richard Levitte <levitte@stacken.kth.se>]
9456 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9457 [Richard Levitte <levitte@stacken.kth.se>]
9459 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9460 from `int' to `unsigned int' because it's a length and initialized by
9461 EVP_DigestFinal() which expects an `unsigned int *'.
9462 [Richard Levitte <levitte@stacken.kth.se>]
9464 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9465 script. Instead use the usual Shell->Perl transition trick.
9466 [Ralf S. Engelschall]
9468 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9469 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9470 -noout -modulus' as it's already the case for `openssl rsa -noout
9471 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9472 currently the public key is printed (a decision which was already done by
9473 `openssl dsa -modulus' in the past) which serves a similar purpose.
9474 Additionally the NO_RSA no longer completely removes the whole -modulus
9475 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9477 [Ralf S. Engelschall]
9479 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9480 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9481 [Arne Ansper <arne@ats.cyber.ee>]
9483 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9484 to be added. Now both 'req' and 'ca' can use new objects defined in the
9488 *) Add cool BIO that does syslog (or event log on NT).
9489 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9491 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9492 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9493 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9494 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9497 *) Add preliminary config info for new extension code.
9500 *) Make RSA_NO_PADDING really use no padding.
9501 [Ulf Moeller <ulf@fitug.de>]
9503 *) Generate errors when private/public key check is done.
9506 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9507 for some CRL extensions and new objects added.
9510 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9511 key usage extension and fuller support for authority key id.
9514 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9515 padding method for RSA, which is recommended for new applications in PKCS
9516 #1 v2.0 (RFC 2437, October 1998).
9517 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9518 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9519 against Bleichbacher's attack on RSA.
9520 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9523 *) Updates to the new SSL compression code
9524 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9526 *) Fix so that the version number in the master secret, when passed
9527 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9528 (because the server will not accept higher), that the version number
9529 is 0x03,0x01, not 0x03,0x00
9530 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9532 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9533 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9534 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9537 *) Support for RAW extensions where an arbitrary extension can be
9538 created by including its DER encoding. See apps/openssl.cnf for
9542 *) Make sure latest Perl versions don't interpret some generated C array
9543 code as Perl array code in the crypto/err/err_genc.pl script.
9544 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9546 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9547 not many people have the assembler. Various Win32 compilation fixes and
9548 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9552 *) Modify configure script 'Configure' to automatically create crypto/date.h
9553 file under Win32 and also build pem.h from pem.org. New script
9554 util/mkfiles.pl to create the MINFO file on environments that can't do a
9555 'make files': perl util/mkfiles.pl >MINFO should work.
9558 *) Major rework of DES function declarations, in the pursuit of correctness
9559 and purity. As a result, many evil casts evaporated, and some weirdness,
9560 too. You may find this causes warnings in your code. Zapping your evil
9561 casts will probably fix them. Mostly.
9564 *) Fix for a typo in asn1.h. Bug fix to object creation script
9565 obj_dat.pl. It considered a zero in an object definition to mean
9566 "end of object": none of the objects in objects.h have any zeros
9567 so it wasn't spotted.
9568 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9570 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9571 Masking (CBCM). In the absence of test vectors, the best I have been able
9572 to do is check that the decrypt undoes the encrypt, so far. Send me test
9573 vectors if you have them.
9576 *) Correct calculation of key length for export ciphers (too much space was
9577 allocated for null ciphers). This has not been tested!
9580 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9581 message is now correct (it understands "crypto" and "ssl" on its
9582 command line). There is also now an "update" option. This will update
9583 the util/ssleay.num and util/libeay.num files with any new functions.
9585 perl util/mkdef.pl crypto ssl update
9586 it will update them.
9589 *) Overhauled the Perl interface (perl/*):
9590 - ported BN stuff to OpenSSL's different BN library
9591 - made the perl/ source tree CVS-aware
9592 - renamed the package from SSLeay to OpenSSL (the files still contain
9593 their history because I've copied them in the repository)
9594 - removed obsolete files (the test scripts will be replaced
9595 by better Test::Harness variants in the future)
9596 [Ralf S. Engelschall]
9598 *) First cut for a very conservative source tree cleanup:
9599 1. merge various obsolete readme texts into doc/ssleay.txt
9600 where we collect the old documents and readme texts.
9601 2. remove the first part of files where I'm already sure that we no
9602 longer need them because of three reasons: either they are just temporary
9603 files which were left by Eric or they are preserved original files where
9604 I've verified that the diff is also available in the CVS via "cvs diff
9605 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9606 the crypto/md/ stuff).
9607 [Ralf S. Engelschall]
9609 *) More extension code. Incomplete support for subject and issuer alt
9610 name, issuer and authority key id. Change the i2v function parameters
9611 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9612 what that's for :-) Fix to ASN1 macro which messed up
9613 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9616 *) Preliminary support for ENUMERATED type. This is largely copied from the
9620 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9621 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9623 *) Make sure `make rehash' target really finds the `openssl' program.
9624 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9626 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9627 like to hear about it if this slows down other processors.
9630 *) Add CygWin32 platform information to Configure script.
9631 [Alan Batie <batie@aahz.jf.intel.com>]
9633 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9634 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9636 *) New program nseq to manipulate netscape certificate sequences
9639 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9643 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9644 but the BN code had some problems that would cause failures when
9645 doing certificate verification and some other functions.
9646 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9648 *) Add ASN1 and PEM code to support netscape certificate sequences.
9651 *) Add ASN1 and PEM code to support netscape certificate sequences.
9654 *) Add several PKIX and private extended key usage OIDs.
9657 *) Modify the 'ca' program to handle the new extension code. Modify
9658 openssl.cnf for new extension format, add comments.
9661 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9662 and add a sample to openssl.cnf so req -x509 now adds appropriate
9666 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9667 error code, add initial support to X509_print() and x509 application.
9670 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9671 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9672 stuff is currently isolated and isn't even compiled yet.
9675 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9676 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9677 Removed the versions check from X509 routines when loading extensions:
9678 this allows certain broken certificates that don't set the version
9679 properly to be processed.
9682 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9683 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9684 can still be regenerated with "make depend".
9687 *) Spelling mistake in C version of CAST-128.
9688 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9690 *) Changes to the error generation code. The perl script err-code.pl
9691 now reads in the old error codes and retains the old numbers, only
9692 adding new ones if necessary. It also only changes the .err files if new
9693 codes are added. The makefiles have been modified to only insert errors
9694 when needed (to avoid needlessly modifying header files). This is done
9695 by only inserting errors if the .err file is newer than the auto generated
9696 C file. To rebuild all the error codes from scratch (the old behaviour)
9697 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9698 or delete all the .err files.
9701 *) CAST-128 was incorrectly implemented for short keys. The C version has
9702 been fixed, but is untested. The assembler versions are also fixed, but
9703 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9704 to regenerate it if needed.
9705 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9706 Hagino <itojun@kame.net>]
9708 *) File was opened incorrectly in randfile.c.
9709 [Ulf Möller <ulf@fitug.de>]
9711 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9712 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9713 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9714 al: it's just almost always a UTCTime. Note this patch adds new error
9715 codes so do a "make errors" if there are problems.
9718 *) Correct Linux 1 recognition in config.
9719 [Ulf Möller <ulf@fitug.de>]
9721 *) Remove pointless MD5 hash when using DSA keys in ca.
9722 [Anonymous <nobody@replay.com>]
9724 *) Generate an error if given an empty string as a cert directory. Also
9725 generate an error if handed NULL (previously returned 0 to indicate an
9726 error, but didn't set one).
9727 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9729 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9732 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9733 parameters. This was causing a warning which killed off the Win32 compile.
9736 *) Remove C++ style comments from crypto/bn/bn_local.h.
9737 [Neil Costigan <neil.costigan@celocom.com>]
9739 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9740 based on a text string, looking up short and long names and finally
9741 "dot" format. The "dot" format stuff didn't work. Added new function
9742 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9743 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9744 OID is not part of the table.
9747 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9748 X509_LOOKUP_by_alias().
9751 *) Sort openssl functions by name.
9754 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9755 encryption from sample DSA keys (in case anyone is interested the password
9759 *) Make _all_ *_free functions accept a NULL pointer.
9760 [Frans Heymans <fheymans@isaserver.be>]
9762 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9764 [Anonymous <nobody@replay.com>]
9766 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9767 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9769 *) Don't blow it for numeric -newkey arguments to apps/req.
9770 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9772 *) Temp key "for export" tests were wrong in s3_srvr.c.
9773 [Anonymous <nobody@replay.com>]
9775 *) Add prototype for temp key callback functions
9776 SSL_CTX_set_tmp_{rsa,dh}_callback().
9779 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9780 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9783 *) X509_name_add_entry() freed the wrong thing after an error.
9784 [Arne Ansper <arne@ats.cyber.ee>]
9786 *) rsa_eay.c would attempt to free a NULL context.
9787 [Arne Ansper <arne@ats.cyber.ee>]
9789 *) BIO_s_socket() had a broken should_retry() on Windoze.
9790 [Arne Ansper <arne@ats.cyber.ee>]
9792 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9793 [Arne Ansper <arne@ats.cyber.ee>]
9795 *) Make sure the already existing X509_STORE->depth variable is initialized
9796 in X509_STORE_new(), but document the fact that this variable is still
9797 unused in the certificate verification process.
9798 [Ralf S. Engelschall]
9800 *) Fix the various library and apps files to free up pkeys obtained from
9801 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9804 *) Fix reference counting in X509_PUBKEY_get(). This makes
9805 demos/maurice/example2.c work, amongst others, probably.
9806 [Steve Henson and Ben Laurie]
9808 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9809 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9810 are no longer created. This way we have a single and consistent command
9811 line interface `openssl <command>', similar to `cvs <command>'.
9812 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9814 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9815 BIT STRING wrapper always have zero unused bits.
9818 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9821 *) Make the top-level INSTALL documentation easier to understand.
9824 *) Makefiles updated to exit if an error occurs in a sub-directory
9825 make (including if user presses ^C) [Paul Sutton]
9827 *) Make Montgomery context stuff explicit in RSA data structure.
9830 *) Fix build order of pem and err to allow for generated pem.h.
9833 *) Fix renumbering bug in X509_NAME_delete_entry().
9836 *) Enhanced the err-ins.pl script so it makes the error library number
9837 global and can add a library name. This is needed for external ASN1 and
9838 other error libraries.
9841 *) Fixed sk_insert which never worked properly.
9844 *) Fix ASN1 macros so they can handle indefinite length construted
9845 EXPLICIT tags. Some non standard certificates use these: they can now
9849 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9850 into a single doc/ssleay.txt bundle. This way the information is still
9851 preserved but no longer messes up this directory. Now it's new room for
9852 the new set of documenation files.
9853 [Ralf S. Engelschall]
9855 *) SETs were incorrectly DER encoded. This was a major pain, because they
9856 shared code with SEQUENCEs, which aren't coded the same. This means that
9857 almost everything to do with SETs or SEQUENCEs has either changed name or
9858 number of arguments.
9859 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9861 *) Fix test data to work with the above.
9864 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9865 was already fixed by Eric for 0.9.1 it seems.
9866 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9868 *) Autodetect FreeBSD3.
9871 *) Fix various bugs in Configure. This affects the following platforms:
9875 unixware-2.0-pentium
9879 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9880 before they are needed.
9883 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9887 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9889 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9890 changed SSLeay to OpenSSL in version strings.
9891 [Ralf S. Engelschall]
9893 *) Some fixups to the top-level documents.
9896 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9897 because the symlink to include/ was missing.
9898 [Ralf S. Engelschall]
9900 *) Incorporated the popular no-RSA/DSA-only patches
9901 which allow to compile a RSA-free SSLeay.
9902 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9904 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9905 when "ssleay" is still not found.
9906 [Ralf S. Engelschall]
9908 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9909 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9911 *) Updated the README file.
9912 [Ralf S. Engelschall]
9914 *) Added various .cvsignore files in the CVS repository subdirs
9915 to make a "cvs update" really silent.
9916 [Ralf S. Engelschall]
9918 *) Recompiled the error-definition header files and added
9919 missing symbols to the Win32 linker tables.
9920 [Ralf S. Engelschall]
9922 *) Cleaned up the top-level documents;
9923 o new files: CHANGES and LICENSE
9924 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9925 o merged COPYRIGHT into LICENSE
9926 o removed obsolete TODO file
9927 o renamed MICROSOFT to INSTALL.W32
9928 [Ralf S. Engelschall]
9930 *) Removed dummy files from the 0.9.1b source tree:
9931 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9932 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9933 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9934 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9935 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9936 [Ralf S. Engelschall]
9938 *) Added various platform portability fixes.
9941 *) The Genesis of the OpenSSL rpject:
9942 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9943 Young and Tim J. Hudson created while they were working for C2Net until
9945 [The OpenSSL Project]
9948 Changes between 0.9.0b and 0.9.1b [not released]
9950 *) Updated a few CA certificates under certs/
9953 *) Changed some BIGNUM api stuff.
9956 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9957 DGUX x86, Linux Alpha, etc.
9960 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9961 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9965 *) Add -strparse option to asn1pars program which parses nested
9967 [Dr Stephen Henson <shenson@bigfoot.com>]
9969 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9972 *) DSA fix for "ca" program.
9975 *) Added "-genkey" option to "dsaparam" program.
9978 *) Added RIPE MD160 (rmd160) message digest.
9981 *) Added -a (all) option to "ssleay version" command.
9984 *) Added PLATFORM define which is the id given to Configure.
9987 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9990 *) Extended the ASN.1 parser routines.
9993 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9996 *) Added a BN_CTX to the BN library.
9999 *) Fixed the weak key values in DES library
10002 *) Changed API in EVP library for cipher aliases.
10005 *) Added support for RC2/64bit cipher.
10008 *) Converted the lhash library to the crypto/mem.c functions.
10011 *) Added more recognized ASN.1 object ids.
10014 *) Added more RSA padding checks for SSL/TLS.
10017 *) Added BIO proxy/filter functionality.
10020 *) Added extra_certs to SSL_CTX which can be used
10021 send extra CA certificates to the client in the CA cert chain sending
10022 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10025 *) Now Fortezza is denied in the authentication phase because
10026 this is key exchange mechanism is not supported by SSLeay at all.
10029 *) Additional PKCS1 checks.
10032 *) Support the string "TLSv1" for all TLS v1 ciphers.
10035 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10036 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10039 *) Fixed a few memory leaks.
10042 *) Fixed various code and comment typos.
10045 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10046 bytes sent in the client random.
10047 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob