5 Changes between 1.0.1e and 1.0.1f [xx XXX xxxx]
9 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
11 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
12 supporting platforms or when small records were transferred.
13 [Andy Polyakov, Steve Henson]
15 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
17 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
19 This addresses the flaw in CBC record processing discovered by
20 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
21 at: http://www.isg.rhul.ac.uk/tls/
23 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
24 Security Group at Royal Holloway, University of London
25 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
26 Emilia Käsper for the initial patch.
28 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
30 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
31 ciphersuites which can be exploited in a denial of service attack.
32 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
33 and detecting this bug and to Wolfgang Ettlinger
34 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
38 *) Return an error when checking OCSP signatures when key is NULL.
39 This fixes a DoS attack. (CVE-2013-0166)
42 *) Make openssl verify return errors.
43 [Chris Palmer <palmer@google.com> and Ben Laurie]
45 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
46 the right response is stapled. Also change SSL_get_certificate()
47 so it returns the certificate actually sent.
48 See http://rt.openssl.org/Ticket/Display.html?id=2836.
49 [Rob Stradling <rob.stradling@comodo.com>]
51 *) Fix possible deadlock when decoding public keys.
54 *) Don't use TLS 1.0 record version number in initial client hello
58 Changes between 1.0.1b and 1.0.1c [10 May 2012]
60 *) Sanity check record length before skipping explicit IV in TLS
61 1.2, 1.1 and DTLS to fix DoS attack.
63 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
64 fuzzing as a service testing platform.
68 *) Initialise tkeylen properly when encrypting CMS messages.
69 Thanks to Solar Designer of Openwall for reporting this issue.
72 *) In FIPS mode don't try to use composite ciphers as they are not
76 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
78 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
79 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
80 mean any application compiled against OpenSSL 1.0.0 headers setting
81 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
82 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
83 0x10000000L Any application which was previously compiled against
84 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
85 will need to be recompiled as a result. Letting be results in
86 inability to disable specifically TLS 1.1 and in client context,
87 in unlike event, limit maximum offered version to TLS 1.0 [see below].
90 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
91 disable just protocol X, but all protocols above X *if* there are
92 protocols *below* X still enabled. In more practical terms it means
93 that if application wants to disable TLS1.0 in favor of TLS1.1 and
94 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
95 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
99 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
101 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
102 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
103 in CRYPTO_realloc_clean.
105 Thanks to Tavis Ormandy, Google Security Team, for discovering this
106 issue and to Adam Langley <agl@chromium.org> for fixing it.
108 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
110 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
113 *) Workarounds for some broken servers that "hang" if a client hello
114 record length exceeds 255 bytes.
116 1. Do not use record version number > TLS 1.0 in initial client
117 hello: some (but not all) hanging servers will now work.
118 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
119 the number of ciphers sent in the client hello. This should be
120 set to an even number, such as 50, for example by passing:
121 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
122 Most broken servers should now work.
123 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
124 TLS 1.2 client support entirely.
127 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
130 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
132 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
133 STRING form instead of a DigestInfo.
136 *) The format used for MDC2 RSA signatures is inconsistent between EVP
137 and the RSA_sign/RSA_verify functions. This was made more apparent when
138 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
139 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
140 the correct format in RSA_verify so both forms transparently work.
143 *) Some servers which support TLS 1.0 can choke if we initially indicate
144 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
145 encrypted premaster secret. As a workaround use the maximum pemitted
146 client version in client hello, this should keep such servers happy
147 and still work with previous versions of OpenSSL.
150 *) Add support for TLS/DTLS heartbeats.
151 [Robin Seggelmann <seggelmann@fh-muenster.de>]
153 *) Add support for SCTP.
154 [Robin Seggelmann <seggelmann@fh-muenster.de>]
156 *) Improved PRNG seeding for VOS.
157 [Paul Green <Paul.Green@stratus.com>]
159 *) Extensive assembler packs updates, most notably:
161 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
162 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
163 - x86_64: bit-sliced AES implementation;
164 - ARM: NEON support, contemporary platforms optimizations;
165 - s390x: z196 support;
166 - *: GHASH and GF(2^m) multiplication implementations;
170 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
171 (removal of unnecessary code)
172 [Peter Sylvester <peter.sylvester@edelweb.fr>]
174 *) Add TLS key material exporter from RFC 5705.
177 *) Add DTLS-SRTP negotiation from RFC 5764.
180 *) Add Next Protocol Negotiation,
181 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
182 disabled with a no-npn flag to config or Configure. Code donated
184 [Adam Langley <agl@google.com> and Ben Laurie]
186 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
187 NIST-P256, NIST-P521, with constant-time single point multiplication on
188 typical inputs. Compiler support for the nonstandard type __uint128_t is
189 required to use this (present in gcc 4.4 and later, for 64-bit builds).
190 Code made available under Apache License version 2.0.
192 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
193 line to include this in your build of OpenSSL, and run "make depend" (or
194 "make update"). This enables the following EC_METHODs:
196 EC_GFp_nistp224_method()
197 EC_GFp_nistp256_method()
198 EC_GFp_nistp521_method()
200 EC_GROUP_new_by_curve_name() will automatically use these (while
201 EC_GROUP_new_curve_GFp() currently prefers the more flexible
203 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
205 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
206 all platforms. Move ssize_t definition from e_os.h to the public
207 header file e_os2.h as it now appears in public header file cms.h
210 *) New -sigopt option to the ca, req and x509 utilities. Additional
211 signature parameters can be passed using this option and in
215 *) Add RSA PSS signing function. This will generate and set the
216 appropriate AlgorithmIdentifiers for PSS based on those in the
217 corresponding EVP_MD_CTX structure. No application support yet.
220 *) Support for companion algorithm specific ASN1 signing routines.
221 New function ASN1_item_sign_ctx() signs a pre-initialised
222 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
223 the appropriate parameters.
226 *) Add new algorithm specific ASN1 verification initialisation function
227 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
228 handling will be the same no matter what EVP_PKEY_METHOD is used.
229 Add a PSS handler to support verification of PSS signatures: checked
230 against a number of sample certificates.
233 *) Add signature printing for PSS. Add PSS OIDs.
234 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
236 *) Add algorithm specific signature printing. An individual ASN1 method
237 can now print out signatures instead of the standard hex dump.
239 More complex signatures (e.g. PSS) can print out more meaningful
240 information. Include DSA version that prints out the signature
244 *) Password based recipient info support for CMS library: implementing
248 *) Split password based encryption into PBES2 and PBKDF2 functions. This
249 neatly separates the code into cipher and PBE sections and is required
250 for some algorithms that split PBES2 into separate pieces (such as
254 *) Session-handling fixes:
255 - Fix handling of connections that are resuming with a session ID,
256 but also support Session Tickets.
257 - Fix a bug that suppressed issuing of a new ticket if the client
258 presented a ticket with an expired session.
259 - Try to set the ticket lifetime hint to something reasonable.
260 - Make tickets shorter by excluding irrelevant information.
261 - On the client side, don't ignore renewed tickets.
262 [Adam Langley, Bodo Moeller (Google)]
264 *) Fix PSK session representation.
267 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
269 This work was sponsored by Intel.
272 *) Add GCM support to TLS library. Some custom code is needed to split
273 the IV between the fixed (from PRF) and explicit (from TLS record)
274 portions. This adds all GCM ciphersuites supported by RFC5288 and
275 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
276 add a special AESGCM string for GCM only.
279 *) Expand range of ctrls for AES GCM. Permit setting invocation
280 field on decrypt and retrieval of invocation field only on encrypt.
283 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
284 As required by RFC5289 these ciphersuites cannot be used if for
285 versions of TLS earlier than 1.2.
288 *) For FIPS capable OpenSSL interpret a NULL default public key method
289 as unset and return the appopriate default but do *not* set the default.
290 This means we can return the appopriate method in applications that
291 swicth between FIPS and non-FIPS modes.
294 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
295 ENGINE is used then we cannot handle that in the FIPS module so we
296 keep original code iff non-FIPS operations are allowed.
299 *) Add -attime option to openssl utilities.
300 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
302 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
305 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
306 FIPS EC methods unconditionally for now.
309 *) New build option no-ec2m to disable characteristic 2 code.
312 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
313 all cases can be covered as some introduce binary incompatibilities.
316 *) Redirect RSA operations to FIPS module including keygen,
317 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
320 *) Add similar low level API blocking to ciphers.
323 *) Low level digest APIs are not approved in FIPS mode: any attempt
324 to use these will cause a fatal error. Applications that *really* want
325 to use them can use the private_* version instead.
328 *) Redirect cipher operations to FIPS module for FIPS builds.
331 *) Redirect digest operations to FIPS module for FIPS builds.
334 *) Update build system to add "fips" flag which will link in fipscanister.o
335 for static and shared library builds embedding a signature if needed.
338 *) Output TLS supported curves in preference order instead of numerical
339 order. This is currently hardcoded for the highest order curves first.
340 This should be configurable so applications can judge speed vs strength.
343 *) Add TLS v1.2 server support for client authentication.
346 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
350 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
351 FIPS modules versions.
354 *) Add TLS v1.2 client side support for client authentication. Keep cache
355 of handshake records longer as we don't know the hash algorithm to use
356 until after the certificate request message is received.
359 *) Initial TLS v1.2 client support. Add a default signature algorithms
360 extension including all the algorithms we support. Parse new signature
361 format in client key exchange. Relax some ECC signing restrictions for
362 TLS v1.2 as indicated in RFC5246.
365 *) Add server support for TLS v1.2 signature algorithms extension. Switch
366 to new signature format when needed using client digest preference.
367 All server ciphersuites should now work correctly in TLS v1.2. No client
368 support yet and no support for client certificates.
371 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
372 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
373 ciphersuites. At present only RSA key exchange ciphersuites work with
374 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
375 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
376 and version checking.
379 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
380 with this defined it will not be affected by any changes to ssl internal
381 structures. Add several utility functions to allow openssl application
382 to work with OPENSSL_NO_SSL_INTERN defined.
386 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
388 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
391 *) Permit abbreviated handshakes when renegotiating using the function
392 SSL_renegotiate_abbreviated().
393 [Robin Seggelmann <seggelmann@fh-muenster.de>]
395 *) Add call to ENGINE_register_all_complete() to
396 ENGINE_load_builtin_engines(), so some implementations get used
397 automatically instead of needing explicit application support.
400 *) Add support for TLS key exporter as described in RFC5705.
401 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
403 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
404 a few changes are required:
406 Add SSL_OP_NO_TLSv1_1 flag.
408 Update version checking logic to handle version 1.1.
409 Add explicit IV handling (ported from DTLS code).
410 Add command line options to s_client/s_server.
413 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
415 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
416 in CMS and PKCS7 code. When RSA decryption fails use a random key for
417 content decryption and always return the same error. Note: this attack
418 needs on average 2^20 messages so it only affects automated senders. The
419 old behaviour can be reenabled in the CMS code by setting the
420 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
421 an MMA defence is not necessary.
422 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
423 this issue. (CVE-2012-0884)
426 *) Fix CVE-2011-4619: make sure we really are receiving a
427 client hello before rejecting multiple SGC restarts. Thanks to
428 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
431 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
433 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
434 Thanks to Antonio Martin, Enterprise Secure Access Research and
435 Development, Cisco Systems, Inc. for discovering this bug and
436 preparing a fix. (CVE-2012-0050)
439 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
441 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
442 of the Vaudenay padding oracle attack on CBC mode encryption
443 which enables an efficient plaintext recovery attack against
444 the OpenSSL implementation of DTLS. Their attack exploits timing
445 differences arising during decryption processing. A research
446 paper describing this attack can be found at:
447 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
448 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
449 Security Group at Royal Holloway, University of London
450 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
451 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
452 for preparing the fix. (CVE-2011-4108)
453 [Robin Seggelmann, Michael Tuexen]
455 *) Clear bytes used for block padding of SSL 3.0 records.
457 [Adam Langley (Google)]
459 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
460 Kadianakis <desnacked@gmail.com> for discovering this issue and
461 Adam Langley for preparing the fix. (CVE-2011-4619)
462 [Adam Langley (Google)]
464 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
465 [Andrey Kulikov <amdeich@gmail.com>]
467 *) Prevent malformed RFC3779 data triggering an assertion failure.
468 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
469 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
470 [Rob Austein <sra@hactrn.net>]
472 *) Improved PRNG seeding for VOS.
473 [Paul Green <Paul.Green@stratus.com>]
475 *) Fix ssl_ciph.c set-up race.
476 [Adam Langley (Google)]
478 *) Fix spurious failures in ecdsatest.c.
479 [Emilia Käsper (Google)]
481 *) Fix the BIO_f_buffer() implementation (which was mixing different
482 interpretations of the '..._len' fields).
483 [Adam Langley (Google)]
485 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
486 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
487 threads won't reuse the same blinding coefficients.
489 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
490 lock to call BN_BLINDING_invert_ex, and avoids one use of
491 BN_BLINDING_update for each BN_BLINDING structure (previously,
492 the last update always remained unused).
493 [Emilia Käsper (Google)]
495 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
496 [Bob Buckholz (Google)]
498 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
500 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
501 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
502 [Kaspar Brand <ossl@velox.ch>]
504 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
505 for multi-threaded use of ECDH. (CVE-2011-3210)
506 [Adam Langley (Google)]
508 *) Fix x509_name_ex_d2i memory leak on bad inputs.
511 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
512 signature public key algorithm by using OID xref utilities instead.
513 Before this you could only use some ECC ciphersuites with SHA1 only.
516 *) Add protection against ECDSA timing attacks as mentioned in the paper
517 by Billy Bob Brumley and Nicola Tuveri, see:
519 http://eprint.iacr.org/2011/232.pdf
521 [Billy Bob Brumley and Nicola Tuveri]
523 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
525 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
526 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
528 *) Fix bug in string printing code: if *any* escaping is enabled we must
529 escape the escape character (backslash) or the resulting string is
533 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
535 *) Disable code workaround for ancient and obsolete Netscape browsers
536 and servers: an attacker can use it in a ciphersuite downgrade attack.
537 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
540 *) Fixed J-PAKE implementation error, originally discovered by
541 Sebastien Martini, further info and confirmation from Stefan
542 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
545 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
547 *) Fix extension code to avoid race conditions which can result in a buffer
548 overrun vulnerability: resumed sessions must not be modified as they can
549 be shared by multiple threads. CVE-2010-3864
552 *) Fix WIN32 build system to correctly link an ENGINE directory into
556 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
558 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
560 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
562 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
564 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
565 context. The operation can be customised via the ctrl mechanism in
566 case ENGINEs want to include additional functionality.
569 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
572 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
573 output hashes compatible with older versions of OpenSSL.
574 [Willy Weisz <weisz@vcpc.univie.ac.at>]
576 *) Fix compression algorithm handling: if resuming a session use the
577 compression algorithm of the resumed session instead of determining
578 it from client hello again. Don't allow server to change algorithm.
581 *) Add load_crls() function to apps tidying load_certs() too. Add option
582 to verify utility to allow additional CRLs to be included.
585 *) Update OCSP request code to permit adding custom headers to the request:
586 some responders need this.
589 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
591 [Julia Lawall <julia@diku.dk>]
593 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
594 needlessly dereferenced structures, used obsolete functions and
595 didn't handle all updated verify codes correctly.
598 *) Disable MD2 in the default configuration.
601 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
602 indicate the initial BIO being pushed or popped. This makes it possible
603 to determine whether the BIO is the one explicitly called or as a result
604 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
605 it handles reference counts correctly and doesn't zero out the I/O bio
606 when it is not being explicitly popped. WARNING: applications which
607 included workarounds for the old buggy behaviour will need to be modified
608 or they could free up already freed BIOs.
611 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
612 renaming to all platforms (within the 0.9.8 branch, this was
613 done conditionally on Netware platforms to avoid a name clash).
614 [Guenter <lists@gknw.net>]
616 *) Add ECDHE and PSK support to DTLS.
617 [Michael Tuexen <tuexen@fh-muenster.de>]
619 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
623 *) Add "missing" function EVP_MD_flags() (without this the only way to
624 retrieve a digest flags is by accessing the structure directly. Update
625 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
626 or cipher is registered as in the "from" argument. Print out all
627 registered digests in the dgst usage message instead of manually
628 attempting to work them out.
631 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
632 this allows the use of compression and extensions. Change default cipher
633 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
634 by default unless an application cipher string requests it.
637 *) Alter match criteria in PKCS12_parse(). It used to try to use local
638 key ids to find matching certificates and keys but some PKCS#12 files
639 don't follow the (somewhat unwritten) rules and this strategy fails.
640 Now just gather all certificates together and the first private key
641 then look for the first certificate that matches the key.
644 *) Support use of registered digest and cipher names for dgst and cipher
645 commands instead of having to add each one as a special case. So now
652 openssl dgst -sha256 foo
654 and this works for ENGINE based algorithms too.
658 *) Update Gost ENGINE to support parameter files.
659 [Victor B. Wagner <vitus@cryptocom.ru>]
661 *) Support GeneralizedTime in ca utility.
662 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
664 *) Enhance the hash format used for certificate directory links. The new
665 form uses the canonical encoding (meaning equivalent names will work
666 even if they aren't identical) and uses SHA1 instead of MD5. This form
667 is incompatible with the older format and as a result c_rehash should
668 be used to rebuild symbolic links.
671 *) Make PKCS#8 the default write format for private keys, replacing the
672 traditional format. This form is standardised, more secure and doesn't
673 include an implicit MD5 dependency.
676 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
677 committed to OpenSSL should pass this lot as a minimum.
680 *) Add session ticket override functionality for use by EAP-FAST.
681 [Jouni Malinen <j@w1.fi>]
683 *) Modify HMAC functions to return a value. Since these can be implemented
684 in an ENGINE errors can occur.
687 *) Type-checked OBJ_bsearch_ex.
690 *) Type-checked OBJ_bsearch. Also some constification necessitated
691 by type-checking. Still to come: TXT_DB, bsearch(?),
692 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
696 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
697 seconds to a tm structure directly, instead of going through OS
698 specific date routines. This avoids any issues with OS routines such
699 as the year 2038 bug. New *_adj() functions for ASN1 time structures
700 and X509_time_adj_ex() to cover the extended range. The existing
701 X509_time_adj() is still usable and will no longer have any date issues.
704 *) Delta CRL support. New use deltas option which will attempt to locate
705 and search any appropriate delta CRLs available.
707 This work was sponsored by Google.
710 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
711 code and add additional score elements. Validate alternate CRL paths
712 as part of the CRL checking and indicate a new error "CRL path validation
713 error" in this case. Applications wanting additional details can use
714 the verify callback and check the new "parent" field. If this is not
715 NULL CRL path validation is taking place. Existing applications wont
716 see this because it requires extended CRL support which is off by
719 This work was sponsored by Google.
722 *) Support for freshest CRL extension.
724 This work was sponsored by Google.
727 *) Initial indirect CRL support. Currently only supported in the CRLs
728 passed directly and not via lookup. Process certificate issuer
729 CRL entry extension and lookup CRL entries by bother issuer name
730 and serial number. Check and process CRL issuer entry in IDP extension.
732 This work was sponsored by Google.
735 *) Add support for distinct certificate and CRL paths. The CRL issuer
736 certificate is validated separately in this case. Only enabled if
737 an extended CRL support flag is set: this flag will enable additional
738 CRL functionality in future.
740 This work was sponsored by Google.
743 *) Add support for policy mappings extension.
745 This work was sponsored by Google.
748 *) Fixes to pathlength constraint, self issued certificate handling,
749 policy processing to align with RFC3280 and PKITS tests.
751 This work was sponsored by Google.
754 *) Support for name constraints certificate extension. DN, email, DNS
755 and URI types are currently supported.
757 This work was sponsored by Google.
760 *) To cater for systems that provide a pointer-based thread ID rather
761 than numeric, deprecate the current numeric thread ID mechanism and
762 replace it with a structure and associated callback type. This
763 mechanism allows a numeric "hash" to be extracted from a thread ID in
764 either case, and on platforms where pointers are larger than 'long',
765 mixing is done to help ensure the numeric 'hash' is usable even if it
766 can't be guaranteed unique. The default mechanism is to use "&errno"
767 as a pointer-based thread ID to distinguish between threads.
769 Applications that want to provide their own thread IDs should now use
770 CRYPTO_THREADID_set_callback() to register a callback that will call
771 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
773 Note that ERR_remove_state() is now deprecated, because it is tied
774 to the assumption that thread IDs are numeric. ERR_remove_state(0)
775 to free the current thread's error state should be replaced by
776 ERR_remove_thread_state(NULL).
778 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
779 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
780 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
781 application was previously providing a numeric thread callback that
782 was inappropriate for distinguishing threads, then uniqueness might
783 have been obtained with &errno that happened immediately in the
784 intermediate development versions of OpenSSL; this is no longer the
785 case, the numeric thread callback will now override the automatic use
787 [Geoff Thorpe, with help from Bodo Moeller]
789 *) Initial support for different CRL issuing certificates. This covers a
790 simple case where the self issued certificates in the chain exist and
791 the real CRL issuer is higher in the existing chain.
793 This work was sponsored by Google.
796 *) Removed effectively defunct crypto/store from the build.
799 *) Revamp of STACK to provide stronger type-checking. Still to come:
800 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
801 ASN1_STRING, CONF_VALUE.
804 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
805 RAM on SSL connections. This option can save about 34k per idle SSL.
808 *) Revamp of LHASH to provide stronger type-checking. Still to come:
809 STACK, TXT_DB, bsearch, qsort.
812 *) Initial support for Cryptographic Message Syntax (aka CMS) based
813 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
814 support for data, signedData, compressedData, digestedData and
815 encryptedData, envelopedData types included. Scripts to check against
816 RFC4134 examples draft and interop and consistency checks of many
817 content types and variants.
820 *) Add options to enc utility to support use of zlib compression BIO.
823 *) Extend mk1mf to support importing of options and assembly language
824 files from Configure script, currently only included in VC-WIN32.
825 The assembly language rules can now optionally generate the source
826 files from the associated perl scripts.
829 *) Implement remaining functionality needed to support GOST ciphersuites.
830 Interop testing has been performed using CryptoPro implementations.
831 [Victor B. Wagner <vitus@cryptocom.ru>]
833 *) s390x assembler pack.
836 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
840 *) Implement Opaque PRF Input TLS extension as specified in
841 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
842 official specification yet and no extension type assignment by
843 IANA exists, this extension (for now) will have to be explicitly
844 enabled when building OpenSSL by providing the extension number
845 to use. For example, specify an option
847 -DTLSEXT_TYPE_opaque_prf_input=0x9527
849 to the "config" or "Configure" script to enable the extension,
850 assuming extension number 0x9527 (which is a completely arbitrary
851 and unofficial assignment based on the MD5 hash of the Internet
852 Draft). Note that by doing so, you potentially lose
853 interoperability with other TLS implementations since these might
854 be using the same extension number for other purposes.
856 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
857 opaque PRF input value to use in the handshake. This will create
858 an interal copy of the length-'len' string at 'src', and will
859 return non-zero for success.
861 To get more control and flexibility, provide a callback function
864 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
865 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
869 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
872 Callback function 'cb' will be called in handshakes, and is
873 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
874 Argument 'arg' is for application purposes (the value as given to
875 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
876 be provided to the callback function). The callback function
877 has to return non-zero to report success: usually 1 to use opaque
878 PRF input just if possible, or 2 to enforce use of the opaque PRF
879 input. In the latter case, the library will abort the handshake
880 if opaque PRF input is not successfully negotiated.
882 Arguments 'peerinput' and 'len' given to the callback function
883 will always be NULL and 0 in the case of a client. A server will
884 see the client's opaque PRF input through these variables if
885 available (NULL and 0 otherwise). Note that if the server
886 provides an opaque PRF input, the length must be the same as the
887 length of the client's opaque PRF input.
889 Note that the callback function will only be called when creating
890 a new session (session resumption can resume whatever was
891 previously negotiated), and will not be called in SSL 2.0
892 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
893 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
894 for applications that need to enforce opaque PRF input.
898 *) Update ssl code to support digests other than SHA1+MD5 for handshake
901 [Victor B. Wagner <vitus@cryptocom.ru>]
903 *) Add RFC4507 support to OpenSSL. This includes the corrections in
904 RFC4507bis. The encrypted ticket format is an encrypted encoded
905 SSL_SESSION structure, that way new session features are automatically
908 If a client application caches session in an SSL_SESSION structure
909 support is transparent because tickets are now stored in the encoded
912 The SSL_CTX structure automatically generates keys for ticket
913 protection in servers so again support should be possible
914 with no application modification.
916 If a client or server wishes to disable RFC4507 support then the option
917 SSL_OP_NO_TICKET can be set.
919 Add a TLS extension debugging callback to allow the contents of any client
920 or server extensions to be examined.
922 This work was sponsored by Google.
925 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
926 OpenSSL should now compile cleanly on gcc 4.2
927 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
929 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
930 support including streaming MAC support: this is required for GOST
932 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
934 *) Add option -stream to use PKCS#7 streaming in smime utility. New
935 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
936 to output in BER and PEM format.
939 *) Experimental support for use of HMAC via EVP_PKEY interface. This
940 allows HMAC to be handled via the EVP_DigestSign*() interface. The
941 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
942 ENGINE support for HMAC keys which are unextractable. New -mac and
943 -macopt options to dgst utility.
946 *) New option -sigopt to dgst utility. Update dgst to use
947 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
948 alternative signing paramaters such as X9.31 or PSS in the dgst
952 *) Change ssl_cipher_apply_rule(), the internal function that does
953 the work each time a ciphersuite string requests enabling
954 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
955 removing ("!foo+bar") a class of ciphersuites: Now it maintains
956 the order of disabled ciphersuites such that those ciphersuites
957 that most recently went from enabled to disabled not only stay
958 in order with respect to each other, but also have higher priority
959 than other disabled ciphersuites the next time ciphersuites are
962 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
963 the same ciphersuites as with "HIGH" alone, but in a specific
964 order where the PSK ciphersuites come first (since they are the
965 most recently disabled ciphersuites when "HIGH" is parsed).
967 Also, change ssl_create_cipher_list() (using this new
968 funcionality) such that between otherwise identical
969 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
973 *) Change ssl_create_cipher_list() so that it automatically
974 arranges the ciphersuites in reasonable order before starting
975 to process the rule string. Thus, the definition for "DEFAULT"
976 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
977 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
978 This makes it much easier to arrive at a reasonable default order
979 in applications for which anonymous ciphers are OK (meaning
980 that you can't actually use DEFAULT).
981 [Bodo Moeller; suggested by Victor Duchovni]
983 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
984 processing) into multiple integers instead of setting
985 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
986 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
987 (These masks as well as the individual bit definitions are hidden
988 away into the non-exported interface ssl/ssl_locl.h, so this
989 change to the definition of the SSL_CIPHER structure shouldn't
990 affect applications.) This give us more bits for each of these
991 categories, so there is no longer a need to coagulate AES128 and
992 AES256 into a single algorithm bit, and to coagulate Camellia128
993 and Camellia256 into a single algorithm bit, which has led to all
996 Thus, among other things, the kludge introduced in 0.9.7m and
997 0.9.8e for masking out AES256 independently of AES128 or masking
998 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1000 With the change, we also introduce new ciphersuite aliases that
1001 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1005 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1006 Use the leftmost N bytes of the signature input if the input is
1007 larger than the prime q (with N being the size in bytes of q).
1010 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1011 it yet and it is largely untested.
1014 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1017 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1018 some compilers (gcc 4.2 and later) reject their use. Safestack is
1019 reimplemented. Update ASN1 to avoid use of legacy functions.
1022 *) Win32/64 targets are linked with Winsock2.
1025 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1026 to external functions. This can be used to increase CRL handling
1027 efficiency especially when CRLs are very large by (for example) storing
1028 the CRL revoked certificates in a database.
1031 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1032 new CRLs added to a directory can be used. New command line option
1033 -verify_return_error to s_client and s_server. This causes real errors
1034 to be returned by the verify callback instead of carrying on no matter
1035 what. This reflects the way a "real world" verify callback would behave.
1038 *) GOST engine, supporting several GOST algorithms and public key formats.
1039 Kindly donated by Cryptocom.
1042 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1043 partitioned by DP are handled but no indirect CRL or reason partitioning
1044 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1045 selected via a scoring technique which handles IDP and AKID in CRLs.
1048 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1049 will ultimately be used for all verify operations: this will remove the
1050 X509_STORE dependency on certificate verification and allow alternative
1051 lookup methods. X509_STORE based implementations of these two callbacks.
1054 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1055 Modify get_crl() to find a valid (unexpired) CRL if possible.
1058 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1059 this would be called X509_CRL_cmp() but that name is already used by
1060 a function that just compares CRL issuer names. Cache several CRL
1061 extensions in X509_CRL structure and cache CRLDP in X509.
1064 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1065 this maps equivalent X509_NAME structures into a consistent structure.
1066 Name comparison can then be performed rapidly using memcmp().
1069 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1073 *) Allow digests to supply their own micalg string for S/MIME type using
1074 the ctrl EVP_MD_CTRL_MICALG.
1077 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1078 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1079 ctrl. It can then customise the structure before and/or after signing
1083 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1084 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1085 to free up any added signature OIDs.
1088 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1089 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1090 digest and cipher tables. New options added to openssl utility:
1091 list-message-digest-algorithms and list-cipher-algorithms.
1094 *) Change the array representation of binary polynomials: the list
1095 of degrees of non-zero coefficients is now terminated with -1.
1096 Previously it was terminated with 0, which was also part of the
1097 value; thus, the array representation was not applicable to
1098 polynomials where t^0 has coefficient zero. This change makes
1099 the array representation useful in a more general context.
1102 *) Various modifications and fixes to SSL/TLS cipher string
1103 handling. For ECC, the code now distinguishes between fixed ECDH
1104 with RSA certificates on the one hand and with ECDSA certificates
1105 on the other hand, since these are separate ciphersuites. The
1106 unused code for Fortezza ciphersuites has been removed.
1108 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1109 (not "ECDHE"). For consistency with the code for DH
1110 certificates, use of ECDH certificates is now considered ECDH
1111 authentication, not RSA or ECDSA authentication (the latter is
1112 merely the CA's signing algorithm and not actively used in the
1115 The temporary ciphersuite alias "ECCdraft" is no longer
1116 available, and ECC ciphersuites are no longer excluded from "ALL"
1117 and "DEFAULT". The following aliases now exist for RFC 4492
1118 ciphersuites, most of these by analogy with the DH case:
1120 kECDHr - ECDH cert, signed with RSA
1121 kECDHe - ECDH cert, signed with ECDSA
1122 kECDH - ECDH cert (signed with either RSA or ECDSA)
1123 kEECDH - ephemeral ECDH
1124 ECDH - ECDH cert or ephemeral ECDH
1130 AECDH - anonymous ECDH
1131 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1135 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1136 Use correct micalg parameters depending on digest(s) in signed message.
1139 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1140 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1143 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1144 an engine to register a method. Add ENGINE lookups for methods and
1145 functional reference processing.
1148 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1149 EVP_{Sign,Verify}* which allow an application to customise the signature
1153 *) New -resign option to smime utility. This adds one or more signers
1154 to an existing PKCS#7 signedData structure. Also -md option to use an
1155 alternative message digest algorithm for signing.
1158 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1159 create PKCS7 structures containing multiple signers. Update smime
1160 application to support multiple signers.
1163 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1167 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1168 Reorganize PBE internals to lookup from a static table using NIDs,
1169 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1170 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1171 PRF which will be automatically used with PBES2.
1174 *) Replace the algorithm specific calls to generate keys in "req" with the
1178 *) Update PKCS#7 enveloped data routines to use new API. This is now
1179 supported by any public key method supporting the encrypt operation. A
1180 ctrl is added to allow the public key algorithm to examine or modify
1181 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1185 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1186 a default digest type to use. In most cases this will be SHA1 but some
1187 algorithms (such as GOST) need to specify an alternative digest. The
1188 return value indicates how strong the prefernce is 1 means optional and
1189 2 is mandatory (that is it is the only supported type). Modify
1190 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1191 use the default md. Update openssl utilities to use the default digest
1192 type for signing if it is not explicitly indicated.
1195 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1196 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1197 signing method from the key type. This effectively removes the link
1198 between digests and public key types.
1201 *) Add an OID cross reference table and utility functions. Its purpose is to
1202 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1203 rsaEncryption. This will allow some of the algorithm specific hackery
1204 needed to use the correct OID to be removed.
1207 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1208 structures for PKCS7_sign(). They are now set up by the relevant public
1212 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1215 *) Add support for key derivation (agreement) in the API, DH method and
1219 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1220 public and private key formats. As a side effect these add additional
1221 command line functionality not previously available: DSA signatures can be
1222 generated and verified using pkeyutl and DH key support and generation in
1227 [Oliver Tappe <zooey@hirschkaefer.de>]
1229 *) New make target "install_html_docs" installs HTML renditions of the
1231 [Oliver Tappe <zooey@hirschkaefer.de>]
1233 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1234 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1235 support key and parameter generation and add initial key generation
1236 functionality for RSA.
1239 *) Add functions for main EVP_PKEY_method operations. The undocumented
1240 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1241 EVP_PKEY_{encrypt,decrypt}_old.
1244 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1245 key API, doesn't do much yet.
1248 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1249 public key algorithms. New option to openssl utility:
1250 "list-public-key-algorithms" to print out info.
1253 *) Implement the Supported Elliptic Curves Extension for
1254 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1257 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1258 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1261 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1262 utilities such as rsa, dsa, dsaparam etc except they process any key
1266 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1267 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1268 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1272 *) Initial support for pluggable public key ASN1.
1273 De-spaghettify the public key ASN1 handling. Move public and private
1274 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1275 algorithm specific handling to a single module within the relevant
1276 algorithm directory. Add functions to allow (near) opaque processing
1277 of public and private key structures.
1280 *) Implement the Supported Point Formats Extension for
1281 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1284 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1285 for the psk identity [hint] and the psk callback functions to the
1286 SSL_SESSION, SSL and SSL_CTX structure.
1289 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1293 SSL_CTX_use_psk_identity_hint
1294 SSL_get_psk_identity_hint
1295 SSL_get_psk_identity
1296 SSL_use_psk_identity_hint
1298 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1300 *) Add RFC 3161 compliant time stamp request creation, response generation
1301 and response verification functionality.
1302 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1304 *) Add initial support for TLS extensions, specifically for the server_name
1305 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1306 have new members for a host name. The SSL data structure has an
1307 additional member SSL_CTX *initial_ctx so that new sessions can be
1308 stored in that context to allow for session resumption, even after the
1309 SSL has been switched to a new SSL_CTX in reaction to a client's
1310 server_name extension.
1312 New functions (subject to change):
1314 SSL_get_servername()
1315 SSL_get_servername_type()
1318 New CTRL codes and macros (subject to change):
1320 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1321 - SSL_CTX_set_tlsext_servername_callback()
1322 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1323 - SSL_CTX_set_tlsext_servername_arg()
1324 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1326 openssl s_client has a new '-servername ...' option.
1328 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1329 '-key2 ...', '-servername_fatal' (subject to change). This allows
1330 testing the HostName extension for a specific single host name ('-cert'
1331 and '-key' remain fallbacks for handshakes without HostName
1332 negotiation). If the unrecogninzed_name alert has to be sent, this by
1333 default is a warning; it becomes fatal with the '-servername_fatal'
1336 [Peter Sylvester, Remy Allais, Christophe Renou]
1338 *) Whirlpool hash implementation is added.
1341 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1342 bn(64,32). Because of instruction set limitations it doesn't have
1343 any negative impact on performance. This was done mostly in order
1344 to make it possible to share assembler modules, such as bn_mul_mont
1345 implementations, between 32- and 64-bit builds without hassle.
1348 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1349 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1353 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1354 dedicated Montgomery multiplication procedure, is introduced.
1355 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1356 "64-bit" performance on certain 32-bit targets.
1359 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1360 in SSL structures. New SSL ctrl to set maximum send fragment size.
1361 Save memory by seeting the I/O buffer sizes dynamically instead of
1362 using the maximum available value.
1365 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1366 in addition to the text details.
1369 *) Very, very preliminary EXPERIMENTAL support for printing of general
1370 ASN1 structures. This currently produces rather ugly output and doesn't
1371 handle several customised structures at all.
1374 *) Integrated support for PVK file format and some related formats such
1375 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1376 these in the 'rsa' and 'dsa' utilities.
1379 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1382 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1383 place for the (very old) "NETSCAPE" format certificates which are now
1384 handled using new ASN1 code equivalents.
1387 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1388 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1389 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1392 *) Modify CRL distribution points extension code to print out previously
1393 unsupported fields. Enhance extension setting code to allow setting of
1397 *) Add print and set support for Issuing Distribution Point CRL extension.
1400 *) Change 'Configure' script to enable Camellia by default.
1403 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1405 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1406 Thanks to Antonio Martin, Enterprise Secure Access Research and
1407 Development, Cisco Systems, Inc. for discovering this bug and
1408 preparing a fix. (CVE-2012-0050)
1411 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1413 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1414 of the Vaudenay padding oracle attack on CBC mode encryption
1415 which enables an efficient plaintext recovery attack against
1416 the OpenSSL implementation of DTLS. Their attack exploits timing
1417 differences arising during decryption processing. A research
1418 paper describing this attack can be found at:
1419 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1420 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1421 Security Group at Royal Holloway, University of London
1422 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1423 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1424 for preparing the fix. (CVE-2011-4108)
1425 [Robin Seggelmann, Michael Tuexen]
1427 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1428 [Ben Laurie, Kasper <ekasper@google.com>]
1430 *) Clear bytes used for block padding of SSL 3.0 records.
1432 [Adam Langley (Google)]
1434 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1435 Kadianakis <desnacked@gmail.com> for discovering this issue and
1436 Adam Langley for preparing the fix. (CVE-2011-4619)
1437 [Adam Langley (Google)]
1439 *) Prevent malformed RFC3779 data triggering an assertion failure.
1440 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1441 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1442 [Rob Austein <sra@hactrn.net>]
1444 *) Fix ssl_ciph.c set-up race.
1445 [Adam Langley (Google)]
1447 *) Fix spurious failures in ecdsatest.c.
1448 [Emilia Käsper (Google)]
1450 *) Fix the BIO_f_buffer() implementation (which was mixing different
1451 interpretations of the '..._len' fields).
1452 [Adam Langley (Google)]
1454 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1455 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1456 threads won't reuse the same blinding coefficients.
1458 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1459 lock to call BN_BLINDING_invert_ex, and avoids one use of
1460 BN_BLINDING_update for each BN_BLINDING structure (previously,
1461 the last update always remained unused).
1462 [Emilia Käsper (Google)]
1464 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1465 for multi-threaded use of ECDH.
1466 [Adam Langley (Google)]
1468 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1471 *) Add protection against ECDSA timing attacks as mentioned in the paper
1472 by Billy Bob Brumley and Nicola Tuveri, see:
1474 http://eprint.iacr.org/2011/232.pdf
1476 [Billy Bob Brumley and Nicola Tuveri]
1478 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1480 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1481 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1483 *) Fix bug in string printing code: if *any* escaping is enabled we must
1484 escape the escape character (backslash) or the resulting string is
1488 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1490 *) Disable code workaround for ancient and obsolete Netscape browsers
1491 and servers: an attacker can use it in a ciphersuite downgrade attack.
1492 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1495 *) Fixed J-PAKE implementation error, originally discovered by
1496 Sebastien Martini, further info and confirmation from Stefan
1497 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1500 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1502 *) Fix extension code to avoid race conditions which can result in a buffer
1503 overrun vulnerability: resumed sessions must not be modified as they can
1504 be shared by multiple threads. CVE-2010-3864
1507 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1510 *) Don't reencode certificate when calculating signature: cache and use
1511 the original encoding instead. This makes signature verification of
1512 some broken encodings work correctly.
1515 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1516 is also one of the inputs.
1517 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1519 *) Don't repeatedly append PBE algorithms to table if they already exist.
1520 Sort table on each new add. This effectively makes the table read only
1521 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1525 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1527 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1530 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1531 access or freeing data twice (CVE-2010-0742)
1532 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1534 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1535 common in certificates and some applications which only call
1536 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1540 Reduce copying into .apps and .test in makevms.com
1541 Don't try to use blank CA certificate in CA.com
1542 Allow use of C files from original directories in maketests.com
1543 [Steven M. Schweda" <sms@antinode.info>]
1545 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1547 *) When rejecting SSL/TLS records due to an incorrect version number, never
1548 update s->server with a new major version number. As of
1549 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1550 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1551 the previous behavior could result in a read attempt at NULL when
1552 receiving specific incorrect SSL/TLS records once record payload
1553 protection is active. (CVE-2010-0740)
1554 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1556 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1557 could be crashed if the relevant tables were not present (e.g. chrooted).
1558 [Tomas Hoger <thoger@redhat.com>]
1560 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1562 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1563 [Martin Olsson, Neel Mehta]
1565 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1566 accommodate for stack sorting, always a write lock!).
1569 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1570 excessive delays in the RAND_poll(): over a minute. As a workaround
1571 include a time check in the inner Heap32Next loop too.
1574 *) The code that handled flushing of data in SSL/TLS originally used the
1575 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1576 the problem outlined in PR#1949. The fix suggested there however can
1577 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1578 of Apache). So instead simplify the code to flush unconditionally.
1579 This should be fine since flushing with no data to flush is a no op.
1582 *) Handle TLS versions 2.0 and later properly and correctly use the
1583 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1584 off ancient servers have a habit of sticking around for a while...
1587 *) Modify compression code so it frees up structures without using the
1588 ex_data callbacks. This works around a problem where some applications
1589 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1590 restarting) then use compression (e.g. SSL with compression) later.
1591 This results in significant per-connection memory leaks and
1592 has caused some security issues including CVE-2008-1678 and
1596 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1597 change when encrypting or decrypting.
1600 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1601 connect and renegotiate with servers which do not support RI.
1602 Until RI is more widely deployed this option is enabled by default.
1605 *) Add "missing" ssl ctrls to clear options and mode.
1608 *) If client attempts to renegotiate and doesn't support RI respond with
1609 a no_renegotiation alert as required by RFC5746. Some renegotiating
1610 TLS clients will continue a connection gracefully when they receive
1611 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1612 waiting for a server hello which it will never receive. Now we treat a
1613 received no_renegotiation alert as a fatal error. This is because
1614 applications requesting a renegotiation might well expect it to succeed
1615 and would have no code in place to handle the server denying it so the
1616 only safe thing to do is to terminate the connection.
1619 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1620 peer supports secure renegotiation and 0 otherwise. Print out peer
1621 renegotiation support in s_client/s_server.
1624 *) Replace the highly broken and deprecated SPKAC certification method with
1625 the updated NID creation version. This should correctly handle UTF8.
1628 *) Implement RFC5746. Re-enable renegotiation but require the extension
1629 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1630 turns out to be a bad idea. It has been replaced by
1631 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1632 SSL_CTX_set_options(). This is really not recommended unless you
1633 know what you are doing.
1634 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1636 *) Fixes to stateless session resumption handling. Use initial_ctx when
1637 issuing and attempting to decrypt tickets in case it has changed during
1638 servername handling. Use a non-zero length session ID when attempting
1639 stateless session resumption: this makes it possible to determine if
1640 a resumption has occurred immediately after receiving server hello
1641 (several places in OpenSSL subtly assume this) instead of later in
1645 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1646 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1647 fixes for a few places where the return code is not checked
1649 [Julia Lawall <julia@diku.dk>]
1651 *) Add --strict-warnings option to Configure script to include devteam
1652 warnings in other configurations.
1655 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1656 makes it possible to install openssl libraries in locations which
1657 have names other than "lib", for example "/usr/lib64" which some
1659 [Steve Henson, based on patch from Jeremy Utley]
1661 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1662 X690 8.9.12 and can produce some misleading textual output of OIDs.
1663 [Steve Henson, reported by Dan Kaminsky]
1665 *) Delete MD2 from algorithm tables. This follows the recommendation in
1666 several standards that it is not used in new applications due to
1667 several cryptographic weaknesses. For binary compatibility reasons
1668 the MD2 API is still compiled in by default.
1671 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1675 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1676 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1678 [Guenter <lists@gknw.net>]
1680 *) Fix the server certificate chain building code to use X509_verify_cert(),
1681 it used to have an ad-hoc builder which was unable to cope with anything
1682 other than a simple chain.
1683 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1685 *) Don't check self signed certificate signatures in X509_verify_cert()
1686 by default (a flag can override this): it just wastes time without
1687 adding any security. As a useful side effect self signed root CAs
1688 with non-FIPS digests are now usable in FIPS mode.
1691 *) In dtls1_process_out_of_seq_message() the check if the current message
1692 is already buffered was missing. For every new message was memory
1693 allocated, allowing an attacker to perform an denial of service attack
1694 with sending out of seq handshake messages until there is no memory
1695 left. Additionally every future messege was buffered, even if the
1696 sequence number made no sense and would be part of another handshake.
1697 So only messages with sequence numbers less than 10 in advance will be
1698 buffered. (CVE-2009-1378)
1699 [Robin Seggelmann, discovered by Daniel Mentz]
1701 *) Records are buffered if they arrive with a future epoch to be
1702 processed after finishing the corresponding handshake. There is
1703 currently no limitation to this buffer allowing an attacker to perform
1704 a DOS attack with sending records with future epochs until there is no
1705 memory left. This patch adds the pqueue_size() function to detemine
1706 the size of a buffer and limits the record buffer to 100 entries.
1708 [Robin Seggelmann, discovered by Daniel Mentz]
1710 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1711 parent structure is freed. (CVE-2009-1379)
1714 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1715 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1718 [Ilya O. <vrghost@gmail.com>]
1720 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1722 *) Disable renegotiation completely - this fixes a severe security
1723 problem (CVE-2009-3555) at the cost of breaking all
1724 renegotiation. Renegotiation can be re-enabled by setting
1725 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1726 run-time. This is really not recommended unless you know what
1730 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1732 *) Don't set val to NULL when freeing up structures, it is freed up by
1733 underlying code. If sizeof(void *) > sizeof(long) this can result in
1734 zeroing past the valid field. (CVE-2009-0789)
1735 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1737 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1738 checked correctly. This would allow some invalid signed attributes to
1739 appear to verify correctly. (CVE-2009-0591)
1740 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1742 *) Reject UniversalString and BMPString types with invalid lengths. This
1743 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1744 a legal length. (CVE-2009-0590)
1747 *) Set S/MIME signing as the default purpose rather than setting it
1748 unconditionally. This allows applications to override it at the store
1752 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1753 to handle some structures.
1756 *) Improve efficiency of mem_gets: don't search whole buffer each time
1758 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1760 *) New -hex option for openssl rand.
1763 *) Print out UTF8String and NumericString when parsing ASN1.
1766 *) Support NumericString type for name components.
1769 *) Allow CC in the environment to override the automatically chosen
1770 compiler. Note that nothing is done to ensure flags work with the
1774 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1776 *) Properly check EVP_VerifyFinal() and similar return values
1778 [Ben Laurie, Bodo Moeller, Google Security Team]
1780 *) Enable TLS extensions by default.
1783 *) Allow the CHIL engine to be loaded, whether the application is
1784 multithreaded or not. (This does not release the developer from the
1785 obligation to set up the dynamic locking callbacks.)
1786 [Sander Temme <sander@temme.net>]
1788 *) Use correct exit code if there is an error in dgst command.
1789 [Steve Henson; problem pointed out by Roland Dirlewanger]
1791 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1792 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1795 *) Add experimental JPAKE support, including demo authentication in
1796 s_client and s_server.
1799 *) Set the comparison function in v3_addr_canonize().
1800 [Rob Austein <sra@hactrn.net>]
1802 *) Add support for XMPP STARTTLS in s_client.
1803 [Philip Paeps <philip@freebsd.org>]
1805 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1806 to ensure that even with this option, only ciphersuites in the
1807 server's preference list will be accepted. (Note that the option
1808 applies only when resuming a session, so the earlier behavior was
1809 just about the algorithm choice for symmetric cryptography.)
1812 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1814 *) Fix NULL pointer dereference if a DTLS server received
1815 ChangeCipherSpec as first record (CVE-2009-1386).
1818 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1819 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1822 *) The fix in 0.9.8c that supposedly got rid of unsafe
1823 double-checked locking was incomplete for RSA blinding,
1824 addressing just one layer of what turns out to have been
1825 doubly unsafe triple-checked locking.
1827 So now fix this for real by retiring the MONT_HELPER macro
1828 in crypto/rsa/rsa_eay.c.
1830 [Bodo Moeller; problem pointed out by Marius Schilder]
1832 *) Various precautionary measures:
1834 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1836 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1837 (NB: This would require knowledge of the secret session ticket key
1838 to exploit, in which case you'd be SOL either way.)
1840 - Change bn_nist.c so that it will properly handle input BIGNUMs
1841 outside the expected range.
1843 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1846 [Neel Mehta, Bodo Moeller]
1848 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1849 the load fails. Useful for distros.
1850 [Ben Laurie and the FreeBSD team]
1852 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1855 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1858 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1860 This work was sponsored by Logica.
1863 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1864 keystores. Support for SSL/TLS client authentication too.
1865 Not compiled unless enable-capieng specified to Configure.
1867 This work was sponsored by Logica.
1870 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1871 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1872 attribute creation routines such as certifcate requests and PKCS#12
1876 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1878 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1879 handshake which could lead to a cilent crash as found using the
1880 Codenomicon TLS test suite (CVE-2008-1672)
1881 [Steve Henson, Mark Cox]
1883 *) Fix double free in TLS server name extensions which could lead to
1884 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1887 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1889 Clear the error queue to ensure that error entries left from
1890 older function calls do not interfere with the correct operation.
1891 [Lutz Jaenicke, Erik de Castro Lopo]
1893 *) Remove root CA certificates of commercial CAs:
1895 The OpenSSL project does not recommend any specific CA and does not
1896 have any policy with respect to including or excluding any CA.
1897 Therefore it does not make any sense to ship an arbitrary selection
1898 of root CA certificates with the OpenSSL software.
1901 *) RSA OAEP patches to fix two separate invalid memory reads.
1902 The first one involves inputs when 'lzero' is greater than
1903 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1904 before the beginning of from). The second one involves inputs where
1905 the 'db' section contains nothing but zeroes (there is a one-byte
1906 invalid read after the end of 'db').
1907 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1909 *) Partial backport from 0.9.9-dev:
1911 Introduce bn_mul_mont (dedicated Montgomery multiplication
1912 procedure) as a candidate for BIGNUM assembler implementation.
1913 While 0.9.9-dev uses assembler for various architectures, only
1914 x86_64 is available by default here in the 0.9.8 branch, and
1915 32-bit x86 is available through a compile-time setting.
1917 To try the 32-bit x86 assembler implementation, use Configure
1918 option "enable-montasm" (which exists only for this backport).
1920 As "enable-montasm" for 32-bit x86 disclaims code stability
1921 anyway, in this constellation we activate additional code
1922 backported from 0.9.9-dev for further performance improvements,
1923 namely BN_from_montgomery_word. (To enable this otherwise,
1924 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1926 [Andy Polyakov (backport partially by Bodo Moeller)]
1928 *) Add TLS session ticket callback. This allows an application to set
1929 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1930 values. This is useful for key rollover for example where several key
1931 sets may exist with different names.
1934 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1935 This was broken until now in 0.9.8 releases, such that the only way
1936 a registered ENGINE could be used (assuming it initialises
1937 successfully on the host) was to explicitly set it as the default
1938 for the relevant algorithms. This is in contradiction with 0.9.7
1939 behaviour and the documentation. With this fix, when an ENGINE is
1940 registered into a given algorithm's table of implementations, the
1941 'uptodate' flag is reset so that auto-discovery will be used next
1942 time a new context for that algorithm attempts to select an
1944 [Ian Lister (tweaked by Geoff Thorpe)]
1946 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1947 implemention in the following ways:
1949 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1952 Lack of BER streaming support means one pass streaming processing is
1953 only supported if data is detached: setting the streaming flag is
1954 ignored for embedded content.
1956 CMS support is disabled by default and must be explicitly enabled
1957 with the enable-cms configuration option.
1960 *) Update the GMP engine glue to do direct copies between BIGNUM and
1961 mpz_t when openssl and GMP use the same limb size. Otherwise the
1962 existing "conversion via a text string export" trick is still used.
1963 [Paul Sheer <paulsheer@gmail.com>]
1965 *) Zlib compression BIO. This is a filter BIO which compressed and
1966 uncompresses any data passed through it.
1969 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1970 RFC3394 compatible AES key wrapping.
1973 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1974 sets string data without copying. X509_ALGOR_set0() and
1975 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1976 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1977 from an X509_ATTRIBUTE structure optionally checking it occurs only
1978 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1982 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1983 to get the expected BN_FLG_CONSTTIME behavior.
1984 [Bodo Moeller (Google)]
1988 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1989 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1990 - added some more tests to do_tests.pl
1991 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1992 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1993 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1994 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1995 - various changes to netware.pl to enable gcc-cross builds on Win32
1997 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1998 - various changes to fix missing prototype warnings
1999 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2000 - added AES, WHIRLPOOL and CPUID assembler code to build files
2001 - added missing AES assembler make rules to mk1mf.pl
2002 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2003 [Guenter Knauf <eflash@gmx.net>]
2005 *) Implement certificate status request TLS extension defined in RFC3546.
2006 A client can set the appropriate parameters and receive the encoded
2007 OCSP response via a callback. A server can query the supplied parameters
2008 and set the encoded OCSP response in the callback. Add simplified examples
2009 to s_client and s_server.
2012 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2014 *) Fix various bugs:
2015 + Binary incompatibility of ssl_ctx_st structure
2016 + DTLS interoperation with non-compliant servers
2017 + Don't call get_session_cb() without proposed session
2018 + Fix ia64 assembler code
2019 [Andy Polyakov, Steve Henson]
2021 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2023 *) DTLS Handshake overhaul. There were longstanding issues with
2024 OpenSSL DTLS implementation, which were making it impossible for
2025 RFC 4347 compliant client to communicate with OpenSSL server.
2026 Unfortunately just fixing these incompatibilities would "cut off"
2027 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2028 server keeps tolerating non RFC compliant syntax. The opposite is
2029 not true, 0.9.8f client can not communicate with earlier server.
2030 This update even addresses CVE-2007-4995.
2033 *) Changes to avoid need for function casts in OpenSSL: some compilers
2034 (gcc 4.2 and later) reject their use.
2035 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2038 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2039 RFC4507bis. The encrypted ticket format is an encrypted encoded
2040 SSL_SESSION structure, that way new session features are automatically
2043 If a client application caches session in an SSL_SESSION structure
2044 support is transparent because tickets are now stored in the encoded
2047 The SSL_CTX structure automatically generates keys for ticket
2048 protection in servers so again support should be possible
2049 with no application modification.
2051 If a client or server wishes to disable RFC4507 support then the option
2052 SSL_OP_NO_TICKET can be set.
2054 Add a TLS extension debugging callback to allow the contents of any client
2055 or server extensions to be examined.
2057 This work was sponsored by Google.
2060 *) Add initial support for TLS extensions, specifically for the server_name
2061 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2062 have new members for a host name. The SSL data structure has an
2063 additional member SSL_CTX *initial_ctx so that new sessions can be
2064 stored in that context to allow for session resumption, even after the
2065 SSL has been switched to a new SSL_CTX in reaction to a client's
2066 server_name extension.
2068 New functions (subject to change):
2070 SSL_get_servername()
2071 SSL_get_servername_type()
2074 New CTRL codes and macros (subject to change):
2076 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2077 - SSL_CTX_set_tlsext_servername_callback()
2078 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2079 - SSL_CTX_set_tlsext_servername_arg()
2080 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2082 openssl s_client has a new '-servername ...' option.
2084 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2085 '-key2 ...', '-servername_fatal' (subject to change). This allows
2086 testing the HostName extension for a specific single host name ('-cert'
2087 and '-key' remain fallbacks for handshakes without HostName
2088 negotiation). If the unrecogninzed_name alert has to be sent, this by
2089 default is a warning; it becomes fatal with the '-servername_fatal'
2092 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2094 *) Add AES and SSE2 assembly language support to VC++ build.
2097 *) Mitigate attack on final subtraction in Montgomery reduction.
2100 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2101 (which previously caused an internal error).
2104 *) Squeeze another 10% out of IGE mode when in != out.
2107 *) AES IGE mode speedup.
2108 [Dean Gaudet (Google)]
2110 *) Add the Korean symmetric 128-bit cipher SEED (see
2111 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2112 add SEED ciphersuites from RFC 4162:
2114 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2115 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2116 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2117 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2119 To minimize changes between patchlevels in the OpenSSL 0.9.8
2120 series, SEED remains excluded from compilation unless OpenSSL
2121 is configured with 'enable-seed'.
2122 [KISA, Bodo Moeller]
2124 *) Mitigate branch prediction attacks, which can be practical if a
2125 single processor is shared, allowing a spy process to extract
2126 information. For detailed background information, see
2127 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2128 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2129 and Necessary Software Countermeasures"). The core of the change
2130 are new versions BN_div_no_branch() and
2131 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2132 respectively, which are slower, but avoid the security-relevant
2133 conditional branches. These are automatically called by BN_div()
2134 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2135 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2136 remove a conditional branch.
2138 BN_FLG_CONSTTIME is the new name for the previous
2139 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2140 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2141 in the exponent causes BN_mod_exp_mont() to use the alternative
2142 implementation in BN_mod_exp_mont_consttime().) The old name
2143 remains as a deprecated alias.
2145 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2146 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2147 constant-time implementations for more than just exponentiation.
2148 Here too the old name is kept as a deprecated alias.
2150 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2151 the BN_BLINDING structure gets an independent copy of the
2152 modulus. This means that the previous "BIGNUM *m" argument to
2153 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2154 essentially becomes "const BIGNUM *m", although we can't actually
2155 change this in the header file before 0.9.9. It allows
2156 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2157 enable BN_FLG_CONSTTIME.
2159 [Matthew D Wood (Intel Corp)]
2161 *) In the SSL/TLS server implementation, be strict about session ID
2162 context matching (which matters if an application uses a single
2163 external cache for different purposes). Previously,
2164 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2165 set. This did ensure strict client verification, but meant that,
2166 with applications using a single external cache for quite
2167 different requirements, clients could circumvent ciphersuite
2168 restrictions for a given session ID context by starting a session
2169 in a different context.
2172 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2173 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2174 authentication-only ciphersuites.
2177 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2178 not complete and could lead to a possible single byte overflow
2179 (CVE-2007-5135) [Ben Laurie]
2181 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2183 *) Since AES128 and AES256 (and similarly Camellia128 and
2184 Camellia256) share a single mask bit in the logic of
2185 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2186 kludge to work properly if AES128 is available and AES256 isn't
2187 (or if Camellia128 is available and Camellia256 isn't).
2190 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2191 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2192 When a point or a seed is encoded in a BIT STRING, we need to
2193 prevent the removal of trailing zero bits to get the proper DER
2194 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2195 of a NamedBitList, for which trailing 0 bits need to be removed.)
2198 *) Have SSL/TLS server implementation tolerate "mismatched" record
2199 protocol version while receiving ClientHello even if the
2200 ClientHello is fragmented. (The server can't insist on the
2201 particular protocol version it has chosen before the ServerHello
2202 message has informed the client about his choice.)
2205 *) Add RFC 3779 support.
2206 [Rob Austein for ARIN, Ben Laurie]
2208 *) Load error codes if they are not already present instead of using a
2209 static variable. This allows them to be cleanly unloaded and reloaded.
2210 Improve header file function name parsing.
2213 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2214 or CAPABILITY handshake as required by RFCs.
2217 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2219 *) Introduce limits to prevent malicious keys being able to
2220 cause a denial of service. (CVE-2006-2940)
2221 [Steve Henson, Bodo Moeller]
2223 *) Fix ASN.1 parsing of certain invalid structures that can result
2224 in a denial of service. (CVE-2006-2937) [Steve Henson]
2226 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2227 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2229 *) Fix SSL client code which could crash if connecting to a
2230 malicious SSLv2 server. (CVE-2006-4343)
2231 [Tavis Ormandy and Will Drewry, Google Security Team]
2233 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2234 match only those. Before that, "AES256-SHA" would be interpreted
2235 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2236 the same strength classification in 0.9.7h) as we currently only
2237 have a single AES bit in the ciphersuite description bitmap.
2238 That change, however, also applied to ciphersuite strings such as
2239 "RC4-MD5" that intentionally matched multiple ciphersuites --
2240 namely, SSL 2.0 ciphersuites in addition to the more common ones
2241 from SSL 3.0/TLS 1.0.
2243 So we change the selection algorithm again: Naming an explicit
2244 ciphersuite selects this one ciphersuite, and any other similar
2245 ciphersuite (same bitmap) from *other* protocol versions.
2246 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2247 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2249 Since SSL 2.0 does not have any ciphersuites for which the
2250 128/256 bit distinction would be relevant, this works for now.
2251 The proper fix will be to use different bits for AES128 and
2252 AES256, which would have avoided the problems from the beginning;
2253 however, bits are scarce, so we can only do this in a new release
2254 (not just a patchlevel) when we can change the SSL_CIPHER
2255 definition to split the single 'unsigned long mask' bitmap into
2256 multiple values to extend the available space.
2260 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2262 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2263 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2265 *) Add AES IGE and biIGE modes.
2268 *) Change the Unix randomness entropy gathering to use poll() when
2269 possible instead of select(), since the latter has some
2270 undesirable limitations.
2271 [Darryl Miles via Richard Levitte and Bodo Moeller]
2273 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2274 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2275 cannot be implicitly activated as part of, e.g., the "AES" alias.
2276 However, please upgrade to OpenSSL 0.9.9[-dev] for
2277 non-experimental use of the ECC ciphersuites to get TLS extension
2278 support, which is required for curve and point format negotiation
2279 to avoid potential handshake problems.
2282 *) Disable rogue ciphersuites:
2284 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2285 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2286 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2288 The latter two were purportedly from
2289 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2292 Also deactivate the remaining ciphersuites from
2293 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2294 unofficial, and the ID has long expired.
2297 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2298 dual-core machines) and other potential thread-safety issues.
2301 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2302 versions), which is now available for royalty-free use
2303 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2304 Also, add Camellia TLS ciphersuites from RFC 4132.
2306 To minimize changes between patchlevels in the OpenSSL 0.9.8
2307 series, Camellia remains excluded from compilation unless OpenSSL
2308 is configured with 'enable-camellia'.
2311 *) Disable the padding bug check when compression is in use. The padding
2312 bug check assumes the first packet is of even length, this is not
2313 necessarily true if compresssion is enabled and can result in false
2314 positives causing handshake failure. The actual bug test is ancient
2315 code so it is hoped that implementations will either have fixed it by
2316 now or any which still have the bug do not support compression.
2319 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2321 *) When applying a cipher rule check to see if string match is an explicit
2322 cipher suite and only match that one cipher suite if it is.
2325 *) Link in manifests for VC++ if needed.
2326 [Austin Ziegler <halostatue@gmail.com>]
2328 *) Update support for ECC-based TLS ciphersuites according to
2329 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2330 TLS extensions, which are supported starting with the 0.9.9
2331 branch, not in the OpenSSL 0.9.8 branch).
2334 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2335 opaque EVP_CIPHER_CTX handling.
2338 *) Fixes and enhancements to zlib compression code. We now only use
2339 "zlib1.dll" and use the default __cdecl calling convention on Win32
2340 to conform with the standards mentioned here:
2341 http://www.zlib.net/DLL_FAQ.txt
2342 Static zlib linking now works on Windows and the new --with-zlib-include
2343 --with-zlib-lib options to Configure can be used to supply the location
2344 of the headers and library. Gracefully handle case where zlib library
2348 *) Several fixes and enhancements to the OID generation code. The old code
2349 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2350 handle numbers larger than ULONG_MAX, truncated printing and had a
2351 non standard OBJ_obj2txt() behaviour.
2354 *) Add support for building of engines under engine/ as shared libraries
2355 under VC++ build system.
2358 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2359 Hopefully, we will not see any false combination of paths any more.
2362 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2364 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2365 (part of SSL_OP_ALL). This option used to disable the
2366 countermeasure against man-in-the-middle protocol-version
2367 rollback in the SSL 2.0 server implementation, which is a bad
2368 idea. (CVE-2005-2969)
2370 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2371 for Information Security, National Institute of Advanced Industrial
2372 Science and Technology [AIST], Japan)]
2374 *) Add two function to clear and return the verify parameter flags.
2377 *) Keep cipherlists sorted in the source instead of sorting them at
2378 runtime, thus removing the need for a lock.
2381 *) Avoid some small subgroup attacks in Diffie-Hellman.
2382 [Nick Mathewson and Ben Laurie]
2384 *) Add functions for well-known primes.
2387 *) Extended Windows CE support.
2388 [Satoshi Nakamura and Andy Polyakov]
2390 *) Initialize SSL_METHOD structures at compile time instead of during
2391 runtime, thus removing the need for a lock.
2394 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2395 attempting to decrypt each encrypted key in turn. Add support to
2399 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2401 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2404 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2407 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2408 key into the same file any more.
2411 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2414 *) Add -utf8 command line and config file option to 'ca'.
2415 [Stefan <stf@udoma.org]
2417 *) Removed the macro des_crypt(), as it seems to conflict with some
2418 libraries. Use DES_crypt().
2421 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2422 involves renaming the source and generated shared-libs for
2423 both. The engines will accept the corrected or legacy ids
2424 ('ncipher' and '4758_cca' respectively) when binding. NB,
2425 this only applies when building 'shared'.
2426 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2428 *) Add attribute functions to EVP_PKEY structure. Modify
2429 PKCS12_create() to recognize a CSP name attribute and
2430 use it. Make -CSP option work again in pkcs12 utility.
2433 *) Add new functionality to the bn blinding code:
2434 - automatic re-creation of the BN_BLINDING parameters after
2435 a fixed number of uses (currently 32)
2436 - add new function for parameter creation
2437 - introduce flags to control the update behaviour of the
2438 BN_BLINDING parameters
2439 - hide BN_BLINDING structure
2440 Add a second BN_BLINDING slot to the RSA structure to improve
2441 performance when a single RSA object is shared among several
2445 *) Add support for DTLS.
2446 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2448 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2449 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2452 *) Remove buggy and incompletet DH cert support from
2453 ssl/ssl_rsa.c and ssl/s3_both.c
2456 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2457 the apps/openssl applications.
2460 *) Compile clean with "-Wall -Wmissing-prototypes
2461 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2462 DEBUG_SAFESTACK must also be set.
2465 *) Change ./Configure so that certain algorithms can be disabled by default.
2466 The new counterpiece to "no-xxx" is "enable-xxx".
2468 The patented RC5 and MDC2 algorithms will now be disabled unless
2469 "enable-rc5" and "enable-mdc2", respectively, are specified.
2471 (IDEA remains enabled despite being patented. This is because IDEA
2472 is frequently required for interoperability, and there is no license
2473 fee for non-commercial use. As before, "no-idea" can be used to
2474 avoid this algorithm.)
2478 *) Add processing of proxy certificates (see RFC 3820). This work was
2479 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2480 EGEE (Enabling Grids for E-science in Europe).
2483 *) RC4 performance overhaul on modern architectures/implementations, such
2484 as Intel P4, IA-64 and AMD64.
2487 *) New utility extract-section.pl. This can be used specify an alternative
2488 section number in a pod file instead of having to treat each file as
2489 a separate case in Makefile. This can be done by adding two lines to the
2492 =for comment openssl_section:XXX
2494 The blank line is mandatory.
2498 *) New arguments -certform, -keyform and -pass for s_client and s_server
2499 to allow alternative format key and certificate files and passphrase
2503 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2504 update associated structures and add various utility functions.
2506 Add new policy related verify parameters, include policy checking in
2507 standard verify code. Enhance 'smime' application with extra parameters
2508 to support policy checking and print out.
2511 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2512 Nehemiah processors. These extensions support AES encryption in hardware
2513 as well as RNG (though RNG support is currently disabled).
2514 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2516 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2519 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2520 [Andy Polyakov and a number of other people]
2522 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2523 implementation contributed by IBM.
2524 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2526 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2527 exponent rather than 'unsigned long'. There is a corresponding change to
2528 the new 'rsa_keygen' element of the RSA_METHOD structure.
2529 [Jelte Jansen, Geoff Thorpe]
2531 *) Functionality for creating the initial serial number file is now
2532 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2534 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2535 number file to 1, which is bound to cause problems. To avoid
2536 the problems while respecting compatibility between different 0.9.7
2537 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2538 CA.pl for serial number initialization. With the new release 0.9.8,
2539 we can fix the problem directly in the 'ca' utility.)
2542 *) Reduced header interdepencies by declaring more opaque objects in
2543 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2544 give fewer recursive includes, which could break lazy source code - so
2545 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2546 developers should define this symbol when building and using openssl to
2547 ensure they track the recommended behaviour, interfaces, [etc], but
2548 backwards-compatible behaviour prevails when this isn't defined.
2551 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2554 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2555 This will generate a random key of the appropriate length based on the
2556 cipher context. The EVP_CIPHER can provide its own random key generation
2557 routine to support keys of a specific form. This is used in the des and
2558 3des routines to generate a key of the correct parity. Update S/MIME
2559 code to use new functions and hence generate correct parity DES keys.
2560 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2561 valid (weak or incorrect parity).
2564 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2565 as looking them up. This is useful when the verified structure may contain
2566 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2567 present unless the new PKCS7_NO_CRL flag is asserted.
2570 *) Extend ASN1 oid configuration module. It now additionally accepts the
2573 shortName = some long name, 1.2.3.4
2576 *) Reimplemented the BN_CTX implementation. There is now no more static
2577 limitation on the number of variables it can handle nor the depth of the
2578 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2579 information can now expand as required, and rather than having a single
2580 static array of bignums, BN_CTX now uses a linked-list of such arrays
2581 allowing it to expand on demand whilst maintaining the usefulness of
2582 BN_CTX's "bundling".
2585 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2586 to allow all RSA operations to function using a single BN_CTX.
2589 *) Preliminary support for certificate policy evaluation and checking. This
2590 is initially intended to pass the tests outlined in "Conformance Testing
2591 of Relying Party Client Certificate Path Processing Logic" v1.07.
2594 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2595 remained unused and not that useful. A variety of other little bignum
2596 tweaks and fixes have also been made continuing on from the audit (see
2600 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2601 associated ASN1, EVP and SSL functions and old ASN1 macros.
2604 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2605 and this should never fail. So the return value from the use of
2606 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2607 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2610 *) BN_CTX_get() should return zero-valued bignums, providing the same
2611 initialised value as BN_new().
2612 [Geoff Thorpe, suggested by Ulf Möller]
2614 *) Support for inhibitAnyPolicy certificate extension.
2617 *) An audit of the BIGNUM code is underway, for which debugging code is
2618 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2619 is considered valid when processing BIGNUMs, and causes execution to
2620 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2621 further steps are taken to deliberately pollute unused data in BIGNUM
2622 structures to try and expose faulty code further on. For now, openssl will
2623 (in its default mode of operation) continue to tolerate the inconsistent
2624 forms that it has tolerated in the past, but authors and packagers should
2625 consider trying openssl and their own applications when compiled with
2626 these debugging symbols defined. It will help highlight potential bugs in
2627 their own code, and will improve the test coverage for OpenSSL itself. At
2628 some point, these tighter rules will become openssl's default to improve
2629 maintainability, though the assert()s and other overheads will remain only
2630 in debugging configurations. See bn.h for more details.
2631 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2633 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2634 that can only be obtained through BN_CTX_new() (which implicitly
2635 initialises it). The presence of this function only made it possible
2636 to overwrite an existing structure (and cause memory leaks).
2639 *) Because of the callback-based approach for implementing LHASH as a
2640 template type, lh_insert() adds opaque objects to hash-tables and
2641 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2642 to clean up those corresponding objects before destroying the hash table
2643 (and losing the object pointers). So some over-zealous constifications in
2644 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2645 objects as "const" and the lh_doall[_arg] callback wrappers are not
2646 prototyped to have "const" restrictions on the object pointers they are
2647 given (and so aren't required to cast them away any more).
2650 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2651 (speed) prefers to use its own implementation. The two implementations
2652 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2653 its object type properly exposed (MS_TM) instead of casting to/from "char
2654 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2655 aren't necessarily the greatest nomenclatures - but this is what was used
2656 internally to the implementation so I've used that for now.
2659 *) Ensure that deprecated functions do not get compiled when
2660 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2661 the self-tests were still using deprecated key-generation functions so
2662 these have been updated also.
2665 *) Reorganise PKCS#7 code to separate the digest location functionality
2666 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2667 New function PKCS7_set_digest() to set the digest type for PKCS#7
2668 digestedData type. Add additional code to correctly generate the
2669 digestedData type and add support for this type in PKCS7 initialization
2673 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2674 structure of type "other".
2677 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2678 sure the loop does correctly stop and breaking ("division by zero")
2679 modulus operations are not performed. The (pre-generated) prime
2680 table crypto/bn/bn_prime.h was already correct, but it could not be
2681 re-generated on some platforms because of the "division by zero"
2682 situation in the script.
2683 [Ralf S. Engelschall]
2685 *) Update support for ECC-based TLS ciphersuites according to
2686 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2687 SHA-1 now is only used for "small" curves (where the
2688 representation of a field element takes up to 24 bytes); for
2689 larger curves, the field element resulting from ECDH is directly
2690 used as premaster secret.
2691 [Douglas Stebila (Sun Microsystems Laboratories)]
2693 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2694 curve secp160r1 to the tests.
2695 [Douglas Stebila (Sun Microsystems Laboratories)]
2697 *) Add the possibility to load symbols globally with DSO.
2698 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2700 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2701 control of the error stack.
2704 *) Add support for STORE in ENGINE.
2707 *) Add the STORE type. The intention is to provide a common interface
2708 to certificate and key stores, be they simple file-based stores, or
2709 HSM-type store, or LDAP stores, or...
2710 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2713 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2714 pass a list of arguments to any function as well as provide a way
2715 for a function to pass data back to the caller.
2718 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2719 works like BUF_strdup() but can be used to duplicate a portion of
2720 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2724 *) Add the function sk_find_ex() which works like sk_find(), but will
2725 return an index to an element even if an exact match couldn't be
2726 found. The index is guaranteed to point at the element where the
2727 searched-for key would be inserted to preserve sorting order.
2730 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2731 takes an extra flags argument for optional functionality. Currently,
2732 the following flags are defined:
2734 OBJ_BSEARCH_VALUE_ON_NOMATCH
2735 This one gets OBJ_bsearch_ex() to return a pointer to the first
2736 element where the comparing function returns a negative or zero
2739 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2740 This one gets OBJ_bsearch_ex() to return a pointer to the first
2741 element where the comparing function returns zero. This is useful
2742 if there are more than one element where the comparing function
2746 *) Make it possible to create self-signed certificates with 'openssl ca'
2747 in such a way that the self-signed certificate becomes part of the
2748 CA database and uses the same mechanisms for serial number generation
2749 as all other certificate signing. The new flag '-selfsign' enables
2750 this functionality. Adapt CA.sh and CA.pl.in.
2753 *) Add functionality to check the public key of a certificate request
2754 against a given private. This is useful to check that a certificate
2755 request can be signed by that key (self-signing).
2758 *) Make it possible to have multiple active certificates with the same
2759 subject in the CA index file. This is done only if the keyword
2760 'unique_subject' is set to 'no' in the main CA section (default
2761 if 'CA_default') of the configuration file. The value is saved
2762 with the database itself in a separate index attribute file,
2763 named like the index file with '.attr' appended to the name.
2766 *) Generate muti valued AVAs using '+' notation in config files for
2770 *) Support for nameConstraints certificate extension.
2773 *) Support for policyConstraints certificate extension.
2776 *) Support for policyMappings certificate extension.
2779 *) Make sure the default DSA_METHOD implementation only uses its
2780 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2781 and change its own handlers to be NULL so as to remove unnecessary
2782 indirection. This lets alternative implementations fallback to the
2783 default implementation more easily.
2786 *) Support for directoryName in GeneralName related extensions
2790 *) Make it possible to link applications using Makefile.shared.
2791 Make that possible even when linking against static libraries!
2794 *) Support for single pass processing for S/MIME signing. This now
2795 means that S/MIME signing can be done from a pipe, in addition
2796 cleartext signing (multipart/signed type) is effectively streaming
2797 and the signed data does not need to be all held in memory.
2799 This is done with a new flag PKCS7_STREAM. When this flag is set
2800 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2801 is done after the data is output (and digests calculated) in
2802 SMIME_write_PKCS7().
2805 *) Add full support for -rpath/-R, both in shared libraries and
2806 applications, at least on the platforms where it's known how
2810 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2811 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2812 will now compute a table of multiples of the generator that
2813 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2814 faster (notably in the case of a single point multiplication,
2815 scalar * generator).
2816 [Nils Larsch, Bodo Moeller]
2818 *) IPv6 support for certificate extensions. The various extensions
2819 which use the IP:a.b.c.d can now take IPv6 addresses using the
2820 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2824 *) Added an ENGINE that implements RSA by performing private key
2825 exponentiations with the GMP library. The conversions to and from
2826 GMP's mpz_t format aren't optimised nor are any montgomery forms
2827 cached, and on x86 it appears OpenSSL's own performance has caught up.
2828 However there are likely to be other architectures where GMP could
2829 provide a boost. This ENGINE is not built in by default, but it can be
2830 specified at Configure time and should be accompanied by the necessary
2831 linker additions, eg;
2832 ./config -DOPENSSL_USE_GMP -lgmp
2835 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2836 testing availability of engines with "-t" - the old behaviour is
2837 produced by increasing the feature's verbosity with "-tt".
2840 *) ECDSA routines: under certain error conditions uninitialized BN objects
2841 could be freed. Solution: make sure initialization is performed early
2842 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2846 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2847 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2848 software implementations. For DSA and DH, parameter generation can
2849 also be overriden by providing the appropriate method callbacks.
2852 *) Change the "progress" mechanism used in key-generation and
2853 primality testing to functions that take a new BN_GENCB pointer in
2854 place of callback/argument pairs. The new API functions have "_ex"
2855 postfixes and the older functions are reimplemented as wrappers for
2856 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2857 declarations of the old functions to help (graceful) attempts to
2858 migrate to the new functions. Also, the new key-generation API
2859 functions operate on a caller-supplied key-structure and return
2860 success/failure rather than returning a key or NULL - this is to
2861 help make "keygen" another member function of RSA_METHOD etc.
2863 Example for using the new callback interface:
2865 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2869 BN_GENCB_set(&my_cb, my_callback, my_arg);
2871 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2872 /* For the meaning of a, b in calls to my_callback(), see the
2873 * documentation of the function that calls the callback.
2874 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2875 * my_callback should return 1 if it wants BN_is_prime_ex()
2876 * to continue, or 0 to stop.
2881 *) Change the ZLIB compression method to be stateful, and make it
2882 available to TLS with the number defined in
2883 draft-ietf-tls-compression-04.txt.
2886 *) Add the ASN.1 structures and functions for CertificatePair, which
2887 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2889 CertificatePair ::= SEQUENCE {
2890 forward [0] Certificate OPTIONAL,
2891 reverse [1] Certificate OPTIONAL,
2892 -- at least one of the pair shall be present -- }
2894 Also implement the PEM functions to read and write certificate
2895 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2897 This needed to be defined, mostly for the sake of the LDAP
2898 attribute crossCertificatePair, but may prove useful elsewhere as
2902 *) Make it possible to inhibit symlinking of shared libraries in
2903 Makefile.shared, for Cygwin's sake.
2906 *) Extend the BIGNUM API by creating a function
2907 void BN_set_negative(BIGNUM *a, int neg);
2908 and a macro that behave like
2909 int BN_is_negative(const BIGNUM *a);
2911 to avoid the need to access 'a->neg' directly in applications.
2914 *) Implement fast modular reduction for pseudo-Mersenne primes
2915 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2916 EC_GROUP_new_curve_GFp() will now automatically use this
2918 [Nils Larsch <nla@trustcenter.de>]
2920 *) Add new lock type (CRYPTO_LOCK_BN).
2923 *) Change the ENGINE framework to automatically load engines
2924 dynamically from specific directories unless they could be
2925 found to already be built in or loaded. Move all the
2926 current engines except for the cryptodev one to a new
2928 The engines in engines/ are built as shared libraries if
2929 the "shared" options was given to ./Configure or ./config.
2930 Otherwise, they are inserted in libcrypto.a.
2931 /usr/local/ssl/engines is the default directory for dynamic
2932 engines, but that can be overriden at configure time through
2933 the usual use of --prefix and/or --openssldir, and at run
2934 time with the environment variable OPENSSL_ENGINES.
2935 [Geoff Thorpe and Richard Levitte]
2937 *) Add Makefile.shared, a helper makefile to build shared
2938 libraries. Addapt Makefile.org.
2941 *) Add version info to Win32 DLLs.
2942 [Peter 'Luna' Runestig" <peter@runestig.com>]
2944 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2945 can be added using this API to created arbitrary PKCS#12
2946 files while avoiding the low level API.
2948 New options to PKCS12_create(), key or cert can be NULL and
2949 will then be omitted from the output file. The encryption
2950 algorithm NIDs can be set to -1 for no encryption, the mac
2951 iteration count can be set to 0 to omit the mac.
2953 Enhance pkcs12 utility by making the -nokeys and -nocerts
2954 options work when creating a PKCS#12 file. New option -nomac
2955 to omit the mac, NONE can be set for an encryption algorithm.
2956 New code is modified to use the enhanced PKCS12_create()
2957 instead of the low level API.
2960 *) Extend ASN1 encoder to support indefinite length constructed
2961 encoding. This can output sequences tags and octet strings in
2962 this form. Modify pk7_asn1.c to support indefinite length
2963 encoding. This is experimental and needs additional code to
2964 be useful, such as an ASN1 bio and some enhanced streaming
2967 Extend template encode functionality so that tagging is passed
2968 down to the template encoder.
2971 *) Let 'openssl req' fail if an argument to '-newkey' is not
2972 recognized instead of using RSA as a default.
2975 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2976 As these are not official, they are not included in "ALL";
2977 the "ECCdraft" ciphersuite group alias can be used to select them.
2978 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2980 *) Add ECDH engine support.
2981 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2983 *) Add ECDH in new directory crypto/ecdh/.
2984 [Douglas Stebila (Sun Microsystems Laboratories)]
2986 *) Let BN_rand_range() abort with an error after 100 iterations
2987 without success (which indicates a broken PRNG).
2990 *) Change BN_mod_sqrt() so that it verifies that the input value
2991 is really the square of the return value. (Previously,
2992 BN_mod_sqrt would show GIGO behaviour.)
2995 *) Add named elliptic curves over binary fields from X9.62, SECG,
2996 and WAP/WTLS; add OIDs that were still missing.
2998 [Sheueling Chang Shantz and Douglas Stebila
2999 (Sun Microsystems Laboratories)]
3001 *) Extend the EC library for elliptic curves over binary fields
3002 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3005 EC_GF2m_simple_method
3009 EC_GROUP_new_curve_GF2m
3010 EC_GROUP_set_curve_GF2m
3011 EC_GROUP_get_curve_GF2m
3012 EC_POINT_set_affine_coordinates_GF2m
3013 EC_POINT_get_affine_coordinates_GF2m
3014 EC_POINT_set_compressed_coordinates_GF2m
3016 Point compression for binary fields is disabled by default for
3017 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3020 As binary polynomials are represented as BIGNUMs, various members
3021 of the EC_GROUP and EC_POINT data structures can be shared
3022 between the implementations for prime fields and binary fields;
3023 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3024 are essentially identical to their ..._GFp counterparts.
3025 (For simplicity, the '..._GFp' prefix has been dropped from
3026 various internal method names.)
3028 An internal 'field_div' method (similar to 'field_mul' and
3029 'field_sqr') has been added; this is used only for binary fields.
3031 [Sheueling Chang Shantz and Douglas Stebila
3032 (Sun Microsystems Laboratories)]
3034 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3035 through methods ('mul', 'precompute_mult').
3037 The generic implementations (now internally called 'ec_wNAF_mul'
3038 and 'ec_wNAF_precomputed_mult') remain the default if these
3039 methods are undefined.
3041 [Sheueling Chang Shantz and Douglas Stebila
3042 (Sun Microsystems Laboratories)]
3044 *) New function EC_GROUP_get_degree, which is defined through
3045 EC_METHOD. For curves over prime fields, this returns the bit
3046 length of the modulus.
3048 [Sheueling Chang Shantz and Douglas Stebila
3049 (Sun Microsystems Laboratories)]
3051 *) New functions EC_GROUP_dup, EC_POINT_dup.
3052 (These simply call ..._new and ..._copy).
3054 [Sheueling Chang Shantz and Douglas Stebila
3055 (Sun Microsystems Laboratories)]
3057 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3058 Polynomials are represented as BIGNUMs (where the sign bit is not
3059 used) in the following functions [macros]:
3062 BN_GF2m_sub [= BN_GF2m_add]
3063 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3064 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3065 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3067 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3068 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3069 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3070 BN_GF2m_cmp [= BN_ucmp]
3072 (Note that only the 'mod' functions are actually for fields GF(2^m).
3073 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3075 For some functions, an the irreducible polynomial defining a
3076 field can be given as an 'unsigned int[]' with strictly
3077 decreasing elements giving the indices of those bits that are set;
3078 i.e., p[] represents the polynomial
3079 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3081 p[0] > p[1] > ... > p[k] = 0.
3082 This applies to the following functions:
3087 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3088 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3090 BN_GF2m_mod_sqrt_arr
3091 BN_GF2m_mod_solve_quad_arr
3095 Conversion can be performed by the following functions:
3100 bntest.c has additional tests for binary polynomial arithmetic.
3102 Two implementations for BN_GF2m_mod_div() are available.
3103 The default algorithm simply uses BN_GF2m_mod_inv() and
3104 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3105 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3106 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3108 [Sheueling Chang Shantz and Douglas Stebila
3109 (Sun Microsystems Laboratories)]
3111 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3112 functionality is disabled at compile-time.
3113 [Douglas Stebila <douglas.stebila@sun.com>]
3115 *) Change default behaviour of 'openssl asn1parse' so that more
3116 information is visible when viewing, e.g., a certificate:
3118 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3119 mode the content of non-printable OCTET STRINGs is output in a
3120 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3121 avoid the appearance of a printable string.
3122 [Nils Larsch <nla@trustcenter.de>]
3124 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3126 EC_GROUP_set_asn1_flag()
3127 EC_GROUP_get_asn1_flag()
3128 EC_GROUP_set_point_conversion_form()
3129 EC_GROUP_get_point_conversion_form()
3130 These control ASN1 encoding details:
3131 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3132 has been set to OPENSSL_EC_NAMED_CURVE.
3133 - Points are encoded in uncompressed form by default; options for
3134 asn1_for are as for point2oct, namely
3135 POINT_CONVERSION_COMPRESSED
3136 POINT_CONVERSION_UNCOMPRESSED
3137 POINT_CONVERSION_HYBRID
3139 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3142 EC_GROUP_get0_seed()
3143 EC_GROUP_get_seed_len()
3144 This is used only for ASN1 purposes (so far).
3145 [Nils Larsch <nla@trustcenter.de>]
3147 *) Add 'field_type' member to EC_METHOD, which holds the NID
3148 of the appropriate field type OID. The new function
3149 EC_METHOD_get_field_type() returns this value.
3150 [Nils Larsch <nla@trustcenter.de>]
3155 EC_POINT_point2hex()
3156 EC_POINT_hex2point()
3157 providing useful interfaces to EC_POINT_point2oct() and
3158 EC_POINT_oct2point().
3159 [Nils Larsch <nla@trustcenter.de>]
3161 *) Change internals of the EC library so that the functions
3162 EC_GROUP_set_generator()
3163 EC_GROUP_get_generator()
3164 EC_GROUP_get_order()
3165 EC_GROUP_get_cofactor()
3166 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3167 to methods, which would lead to unnecessary code duplication when
3168 adding different types of curves.
3169 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3171 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3172 arithmetic, and such that modified wNAFs are generated
3173 (which avoid length expansion in many cases).
3176 *) Add a function EC_GROUP_check_discriminant() (defined via
3177 EC_METHOD) that verifies that the curve discriminant is non-zero.
3179 Add a function EC_GROUP_check() that makes some sanity tests
3180 on a EC_GROUP, its generator and order. This includes
3181 EC_GROUP_check_discriminant().
3182 [Nils Larsch <nla@trustcenter.de>]
3184 *) Add ECDSA in new directory crypto/ecdsa/.
3186 Add applications 'openssl ecparam' and 'openssl ecdsa'
3187 (these are based on 'openssl dsaparam' and 'openssl dsa').
3189 ECDSA support is also included in various other files across the
3190 library. Most notably,
3191 - 'openssl req' now has a '-newkey ecdsa:file' option;
3192 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3193 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3194 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3195 them suitable for ECDSA where domain parameters must be
3196 extracted before the specific public key;
3197 - ECDSA engine support has been added.
3198 [Nils Larsch <nla@trustcenter.de>]
3200 *) Include some named elliptic curves, and add OIDs from X9.62,
3201 SECG, and WAP/WTLS. Each curve can be obtained from the new
3203 EC_GROUP_new_by_curve_name(),
3204 and the list of available named curves can be obtained with
3205 EC_get_builtin_curves().
3206 Also add a 'curve_name' member to EC_GROUP objects, which can be
3208 EC_GROUP_set_curve_name()
3209 EC_GROUP_get_curve_name()
3210 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3212 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3213 was actually never needed) and in BN_mul(). The removal in BN_mul()
3214 required a small change in bn_mul_part_recursive() and the addition
3215 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3216 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3217 bn_sub_words() and bn_add_words() except they take arrays with
3221 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3223 *) Cleanse PEM buffers before freeing them since they may contain
3225 [Benjamin Bennett <ben@psc.edu>]
3227 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3228 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3229 authentication-only ciphersuites.
3232 *) Since AES128 and AES256 share a single mask bit in the logic of
3233 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3234 kludge to work properly if AES128 is available and AES256 isn't.
3237 *) Expand security boundary to match 1.1.1 module.
3240 *) Remove redundant features: hash file source, editing of test vectors
3241 modify fipsld to use external fips_premain.c signature.
3244 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3245 run algorithm test programs.
3248 *) Make algorithm test programs more tolerant of whitespace.
3251 *) Have SSL/TLS server implementation tolerate "mismatched" record
3252 protocol version while receiving ClientHello even if the
3253 ClientHello is fragmented. (The server can't insist on the
3254 particular protocol version it has chosen before the ServerHello
3255 message has informed the client about his choice.)
3258 *) Load error codes if they are not already present instead of using a
3259 static variable. This allows them to be cleanly unloaded and reloaded.
3262 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3264 *) Introduce limits to prevent malicious keys being able to
3265 cause a denial of service. (CVE-2006-2940)
3266 [Steve Henson, Bodo Moeller]
3268 *) Fix ASN.1 parsing of certain invalid structures that can result
3269 in a denial of service. (CVE-2006-2937) [Steve Henson]
3271 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3272 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3274 *) Fix SSL client code which could crash if connecting to a
3275 malicious SSLv2 server. (CVE-2006-4343)
3276 [Tavis Ormandy and Will Drewry, Google Security Team]
3278 *) Change ciphersuite string processing so that an explicit
3279 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3280 will no longer include "AES128-SHA"), and any other similar
3281 ciphersuite (same bitmap) from *other* protocol versions (so that
3282 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3283 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3284 changes from 0.9.8b and 0.9.8d.
3287 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3289 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3290 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3292 *) Change the Unix randomness entropy gathering to use poll() when
3293 possible instead of select(), since the latter has some
3294 undesirable limitations.
3295 [Darryl Miles via Richard Levitte and Bodo Moeller]
3297 *) Disable rogue ciphersuites:
3299 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3300 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3301 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3303 The latter two were purportedly from
3304 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3307 Also deactive the remaining ciphersuites from
3308 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3309 unofficial, and the ID has long expired.
3312 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3313 dual-core machines) and other potential thread-safety issues.
3316 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3318 *) Adapt fipsld and the build system to link against the validated FIPS
3319 module in FIPS mode.
3322 *) Fixes for VC++ 2005 build under Windows.
3325 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3326 from a Windows bash shell such as MSYS. It is autodetected from the
3327 "config" script when run from a VC++ environment. Modify standard VC++
3328 build to use fipscanister.o from the GNU make build.
3331 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3333 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3334 The value now differs depending on if you build for FIPS or not.
3335 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3336 safely run with a non-FIPSed libcrypto, as it may crash because of
3337 the difference induced by this change.
3340 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3342 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3343 (part of SSL_OP_ALL). This option used to disable the
3344 countermeasure against man-in-the-middle protocol-version
3345 rollback in the SSL 2.0 server implementation, which is a bad
3346 idea. (CVE-2005-2969)
3348 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3349 for Information Security, National Institute of Advanced Industrial
3350 Science and Technology [AIST], Japan)]
3352 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3353 mainly for FIPS compliance and not fully integrated at this stage.
3356 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3357 the exponentiation using a fixed-length exponent. (Otherwise,
3358 the information leaked through timing could expose the secret key
3359 after many signatures; cf. Bleichenbacher's attack on DSA with
3363 *) Make a new fixed-window mod_exp implementation the default for
3364 RSA, DSA, and DH private-key operations so that the sequence of
3365 squares and multiplies and the memory access pattern are
3366 independent of the particular secret key. This will mitigate
3367 cache-timing and potential related attacks.
3369 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3370 and this is automatically used by BN_mod_exp_mont() if the new flag
3371 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3372 will use this BN flag for private exponents unless the flag
3373 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3374 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3376 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3378 *) Change the client implementation for SSLv23_method() and
3379 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3380 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3381 (Previously, the SSL 2.0 backwards compatible Client Hello
3382 message format would be used even with SSL_OP_NO_SSLv2.)
3385 *) Add support for smime-type MIME parameter in S/MIME messages which some
3389 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3390 a threadsafe manner. Modify rsa code to use new function and add calls
3391 to dsa and dh code (which had race conditions before).
3394 *) Include the fixed error library code in the C error file definitions
3395 instead of fixing them up at runtime. This keeps the error code
3396 structures constant.
3399 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3401 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3404 *) Fixes for newer kerberos headers. NB: the casts are needed because
3405 the 'length' field is signed on one version and unsigned on another
3406 with no (?) obvious way to tell the difference, without these VC++
3407 complains. Also the "definition" of FAR (blank) is no longer included
3408 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3409 some needed definitions.
3412 *) Undo Cygwin change.
3415 *) Added support for proxy certificates according to RFC 3820.
3416 Because they may be a security thread to unaware applications,
3417 they must be explicitely allowed in run-time. See
3418 docs/HOWTO/proxy_certificates.txt for further information.
3421 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3423 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3424 server and client random values. Previously
3425 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3426 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3428 This change has negligible security impact because:
3430 1. Server and client random values still have 24 bytes of pseudo random
3433 2. Server and client random values are sent in the clear in the initial
3436 3. The master secret is derived using the premaster secret (48 bytes in
3437 size for static RSA ciphersuites) as well as client server and random
3440 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3443 [Stephen Henson, reported by UK NISCC]
3445 *) Use Windows randomness collection on Cygwin.
3448 *) Fix hang in EGD/PRNGD query when communication socket is closed
3449 prematurely by EGD/PRNGD.
3450 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3452 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3455 *) Back-port of selected performance improvements from development
3456 branch, as well as improved support for PowerPC platforms.
3459 *) Add lots of checks for memory allocation failure, error codes to indicate
3460 failure and freeing up memory if a failure occurs.
3461 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3463 *) Add new -passin argument to dgst.
3466 *) Perform some character comparisons of different types in X509_NAME_cmp:
3467 this is needed for some certificates that reencode DNs into UTF8Strings
3468 (in violation of RFC3280) and can't or wont issue name rollover
3472 *) Make an explicit check during certificate validation to see that
3473 the CA setting in each certificate on the chain is correct. As a
3474 side effect always do the following basic checks on extensions,
3475 not just when there's an associated purpose to the check:
3477 - if there is an unhandled critical extension (unless the user
3478 has chosen to ignore this fault)
3479 - if the path length has been exceeded (if one is set at all)
3480 - that certain extensions fit the associated purpose (if one has
3484 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3486 *) Avoid a race condition when CRLs are checked in a multi threaded
3487 environment. This would happen due to the reordering of the revoked
3488 entries during signature checking and serial number lookup. Now the
3489 encoding is cached and the serial number sort performed under a lock.
3490 Add new STACK function sk_is_sorted().
3493 *) Add Delta CRL to the extension code.
3496 *) Various fixes to s3_pkt.c so alerts are sent properly.
3497 [David Holmes <d.holmes@f5.com>]
3499 *) Reduce the chances of duplicate issuer name and serial numbers (in
3500 violation of RFC3280) using the OpenSSL certificate creation utilities.
3501 This is done by creating a random 64 bit value for the initial serial
3502 number when a serial number file is created or when a self signed
3503 certificate is created using 'openssl req -x509'. The initial serial
3504 number file is created using 'openssl x509 -next_serial' in CA.pl
3505 rather than being initialized to 1.
3508 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3510 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3511 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3512 [Joe Orton, Steve Henson]
3514 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3516 [Joe Orton, Steve Henson]
3518 *) Make it possible to have multiple active certificates with the same
3519 subject in the CA index file. This is done only if the keyword
3520 'unique_subject' is set to 'no' in the main CA section (default
3521 if 'CA_default') of the configuration file. The value is saved
3522 with the database itself in a separate index attribute file,
3523 named like the index file with '.attr' appended to the name.
3526 *) X509 verify fixes. Disable broken certificate workarounds when
3527 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3528 keyUsage extension present. Don't accept CRLs with unhandled critical
3529 extensions: since verify currently doesn't process CRL extensions this
3530 rejects a CRL with *any* critical extensions. Add new verify error codes
3534 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3535 A clarification of RFC2560 will require the use of OCTET STRINGs and
3536 some implementations cannot handle the current raw format. Since OpenSSL
3537 copies and compares OCSP nonces as opaque blobs without any attempt at
3538 parsing them this should not create any compatibility issues.
3541 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3542 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3543 this HMAC (and other) operations are several times slower than OpenSSL
3547 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3548 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3550 *) Use the correct content when signing type "other".
3553 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3555 *) Fix various bugs revealed by running the NISCC test suite:
3557 Stop out of bounds reads in the ASN1 code when presented with
3558 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3560 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3562 If verify callback ignores invalid public key errors don't try to check
3563 certificate signature with the NULL public key.
3567 *) New -ignore_err option in ocsp application to stop the server
3568 exiting on the first error in a request.
3571 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3572 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3576 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3577 extra data after the compression methods not only for TLS 1.0
3578 but also for SSL 3.0 (as required by the specification).
3579 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3581 *) Change X509_certificate_type() to mark the key as exported/exportable
3582 when it's 512 *bits* long, not 512 bytes.
3585 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3586 blocks during encryption.
3589 *) Various fixes to base64 BIO and non blocking I/O. On write
3590 flushes were not handled properly if the BIO retried. On read
3591 data was not being buffered properly and had various logic bugs.
3592 This also affects blocking I/O when the data being decoded is a
3596 *) Various S/MIME bugfixes and compatibility changes:
3597 output correct application/pkcs7 MIME type if
3598 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3599 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3600 of files as .eml work). Correctly handle very long lines in MIME
3604 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3606 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3607 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3608 a protocol version number mismatch like a decryption error
3609 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3612 *) Turn on RSA blinding by default in the default implementation
3613 to avoid a timing attack. Applications that don't want it can call
3614 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3615 They would be ill-advised to do so in most cases.
3616 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3618 *) Change RSA blinding code so that it works when the PRNG is not
3619 seeded (in this case, the secret RSA exponent is abused as
3620 an unpredictable seed -- if it is not unpredictable, there
3621 is no point in blinding anyway). Make RSA blinding thread-safe
3622 by remembering the creator's thread ID in rsa->blinding and
3623 having all other threads use local one-time blinding factors
3624 (this requires more computation than sharing rsa->blinding, but
3625 avoids excessive locking; and if an RSA object is not shared
3626 between threads, blinding will still be very fast).
3629 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3630 ENGINE as defaults for all supported algorithms irrespective of
3631 the 'flags' parameter. 'flags' is now honoured, so applications
3632 should make sure they are passing it correctly.
3635 *) Target "mingw" now allows native Windows code to be generated in
3636 the Cygwin environment as well as with the MinGW compiler.
3639 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3641 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3642 via timing by performing a MAC computation even if incorrrect
3643 block cipher padding has been found. This is a countermeasure
3644 against active attacks where the attacker has to distinguish
3645 between bad padding and a MAC verification error. (CVE-2003-0078)
3647 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3648 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3649 Martin Vuagnoux (EPFL, Ilion)]
3651 *) Make the no-err option work as intended. The intention with no-err
3652 is not to have the whole error stack handling routines removed from
3653 libcrypto, it's only intended to remove all the function name and
3654 reason texts, thereby removing some of the footprint that may not
3655 be interesting if those errors aren't displayed anyway.
3657 NOTE: it's still possible for any application or module to have it's
3658 own set of error texts inserted. The routines are there, just not
3659 used by default when no-err is given.
3662 *) Add support for FreeBSD on IA64.
3663 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3665 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3666 Kerberos function mit_des_cbc_cksum(). Before this change,
3667 the value returned by DES_cbc_cksum() was like the one from
3668 mit_des_cbc_cksum(), except the bytes were swapped.
3669 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3671 *) Allow an application to disable the automatic SSL chain building.
3672 Before this a rather primitive chain build was always performed in
3673 ssl3_output_cert_chain(): an application had no way to send the
3674 correct chain if the automatic operation produced an incorrect result.
3676 Now the chain builder is disabled if either:
3678 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3680 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3682 The reasoning behind this is that an application would not want the
3683 auto chain building to take place if extra chain certificates are
3684 present and it might also want a means of sending no additional
3685 certificates (for example the chain has two certificates and the
3689 *) Add the possibility to build without the ENGINE framework.
3690 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3692 *) Under Win32 gmtime() can return NULL: check return value in
3693 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3696 *) DSA routines: under certain error conditions uninitialized BN objects
3697 could be freed. Solution: make sure initialization is performed early
3698 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3699 Nils Larsch <nla@trustcenter.de> via PR#459)
3702 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3703 checked on reconnect on the client side, therefore session resumption
3704 could still fail with a "ssl session id is different" error. This
3705 behaviour is masked when SSL_OP_ALL is used due to
3706 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3707 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3708 followup to PR #377.
3711 *) IA-32 assembler support enhancements: unified ELF targets, support
3712 for SCO/Caldera platforms, fix for Cygwin shared build.
3715 *) Add support for FreeBSD on sparc64. As a consequence, support for
3716 FreeBSD on non-x86 processors is separate from x86 processors on
3717 the config script, much like the NetBSD support.
3718 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3720 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3722 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3725 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3726 code (06) was taken as the first octet of the session ID and the last
3727 octet was ignored consequently. As a result SSLv2 client side session
3728 caching could not have worked due to the session ID mismatch between
3730 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3734 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3735 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3739 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3740 seems that in spite of existing for more than a year, many application
3741 author have done nothing to provide the necessary callbacks, which
3742 means that this particular engine will not work properly anywhere.
3743 This is a very unfortunate situation which forces us, in the name
3744 of usability, to give the hw_ncipher.c a static lock, which is part
3746 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3747 appear in 0.9.8 or later. We EXPECT application authors to have
3748 dealt properly with this when 0.9.8 is released (unless we actually
3749 make such changes in the libcrypto locking code that changes will
3750 have to be made anyway).
3753 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3754 octets have been read, EOF or an error occurs. Without this change
3755 some truncated ASN1 structures will not produce an error.
3758 *) Disable Heimdal support, since it hasn't been fully implemented.
3759 Still give the possibility to force the use of Heimdal, but with
3760 warnings and a request that patches get sent to openssl-dev.
3763 *) Add the VC-CE target, introduce the WINCE sysname, and add
3764 INSTALL.WCE and appropriate conditionals to make it build.
3765 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3767 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3768 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3769 edit numbers of the version.
3770 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3772 *) Introduce safe string copy and catenation functions
3773 (BUF_strlcpy() and BUF_strlcat()).
3774 [Ben Laurie (CHATS) and Richard Levitte]
3776 *) Avoid using fixed-size buffers for one-line DNs.
3777 [Ben Laurie (CHATS)]
3779 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3780 resizing buffers containing secrets, and use where appropriate.
3781 [Ben Laurie (CHATS)]
3783 *) Avoid using fixed size buffers for configuration file location.
3784 [Ben Laurie (CHATS)]
3786 *) Avoid filename truncation for various CA files.
3787 [Ben Laurie (CHATS)]
3789 *) Use sizeof in preference to magic numbers.
3790 [Ben Laurie (CHATS)]
3792 *) Avoid filename truncation in cert requests.
3793 [Ben Laurie (CHATS)]
3795 *) Add assertions to check for (supposedly impossible) buffer
3797 [Ben Laurie (CHATS)]
3799 *) Don't cache truncated DNS entries in the local cache (this could
3800 potentially lead to a spoofing attack).
3801 [Ben Laurie (CHATS)]
3803 *) Fix various buffers to be large enough for hex/decimal
3804 representations in a platform independent manner.
3805 [Ben Laurie (CHATS)]
3807 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3808 resizing buffers containing secrets, and use where appropriate.
3809 [Ben Laurie (CHATS)]
3811 *) Add BIO_indent() to avoid much slightly worrying code to do
3813 [Ben Laurie (CHATS)]
3815 *) Convert sprintf()/BIO_puts() to BIO_printf().
3816 [Ben Laurie (CHATS)]
3818 *) buffer_gets() could terminate with the buffer only half
3820 [Ben Laurie (CHATS)]
3822 *) Add assertions to prevent user-supplied crypto functions from
3823 overflowing internal buffers by having large block sizes, etc.
3824 [Ben Laurie (CHATS)]
3826 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3828 [Ben Laurie (CHATS)]
3830 *) Eliminate unused copy of key in RC4.
3831 [Ben Laurie (CHATS)]
3833 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3834 [Ben Laurie (CHATS)]
3836 *) Fix off-by-one error in EGD path.
3837 [Ben Laurie (CHATS)]
3839 *) If RANDFILE path is too long, ignore instead of truncating.
3840 [Ben Laurie (CHATS)]
3842 *) Eliminate unused and incorrectly sized X.509 structure
3844 [Ben Laurie (CHATS)]
3846 *) Eliminate unused and dangerous function knumber().
3847 [Ben Laurie (CHATS)]
3849 *) Eliminate unused and dangerous structure, KSSL_ERR.
3850 [Ben Laurie (CHATS)]
3852 *) Protect against overlong session ID context length in an encoded
3853 session object. Since these are local, this does not appear to be
3855 [Ben Laurie (CHATS)]
3857 *) Change from security patch (see 0.9.6e below) that did not affect
3858 the 0.9.6 release series:
3860 Remote buffer overflow in SSL3 protocol - an attacker could
3861 supply an oversized master key in Kerberos-enabled versions.
3863 [Ben Laurie (CHATS)]
3865 *) Change the SSL kerb5 codes to match RFC 2712.
3868 *) Make -nameopt work fully for req and add -reqopt switch.
3869 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3871 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3872 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3874 *) Make sure tests can be performed even if the corresponding algorithms
3875 have been removed entirely. This was also the last step to make
3876 OpenSSL compilable with DJGPP under all reasonable conditions.
3877 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3879 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3880 to allow version independent disabling of normally unselected ciphers,
3881 which may be activated as a side-effect of selecting a single cipher.
3883 (E.g., cipher list string "RSA" enables ciphersuites that are left
3884 out of "ALL" because they do not provide symmetric encryption.
3885 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3886 [Lutz Jaenicke, Bodo Moeller]
3888 *) Add appropriate support for separate platform-dependent build
3889 directories. The recommended way to make a platform-dependent
3890 build directory is the following (tested on Linux), maybe with
3893 # Place yourself outside of the OpenSSL source tree. In
3894 # this example, the environment variable OPENSSL_SOURCE
3895 # is assumed to contain the absolute OpenSSL source directory.
3896 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3897 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3898 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3899 mkdir -p `dirname $F`
3900 ln -s $OPENSSL_SOURCE/$F $F
3903 To be absolutely sure not to disturb the source tree, a "make clean"
3904 is a good thing. If it isn't successfull, don't worry about it,
3905 it probably means the source directory is very clean.
3908 *) Make sure any ENGINE control commands make local copies of string
3909 pointers passed to them whenever necessary. Otherwise it is possible
3910 the caller may have overwritten (or deallocated) the original string
3911 data when a later ENGINE operation tries to use the stored values.
3912 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3914 *) Improve diagnostics in file reading and command-line digests.
3915 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3917 *) Add AES modes CFB and OFB to the object database. Correct an
3918 error in AES-CFB decryption.
3921 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3922 allows existing EVP_CIPHER_CTX structures to be reused after
3923 calling EVP_*Final(). This behaviour is used by encryption
3924 BIOs and some applications. This has the side effect that
3925 applications must explicitly clean up cipher contexts with
3926 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3929 *) Check the values of dna and dnb in bn_mul_recursive before calling
3930 bn_mul_comba (a non zero value means the a or b arrays do not contain
3931 n2 elements) and fallback to bn_mul_normal if either is not zero.
3934 *) Fix escaping of non-ASCII characters when using the -subj option
3935 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3938 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3939 form for "surname", serialNumber has no short form.
3940 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3941 therefore remove "mail" short name for "internet 7".
3942 The OID for unique identifiers in X509 certificates is
3943 x500UniqueIdentifier, not uniqueIdentifier.
3944 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3947 *) Add an "init" command to the ENGINE config module and auto initialize
3948 ENGINEs. Without any "init" command the ENGINE will be initialized
3949 after all ctrl commands have been executed on it. If init=1 the
3950 ENGINE is initailized at that point (ctrls before that point are run
3951 on the uninitialized ENGINE and after on the initialized one). If
3952 init=0 then the ENGINE will not be iniatialized at all.
3955 *) Fix the 'app_verify_callback' interface so that the user-defined
3956 argument is actually passed to the callback: In the
3957 SSL_CTX_set_cert_verify_callback() prototype, the callback
3958 declaration has been changed from
3961 int (*cb)(X509_STORE_CTX *,void *);
3962 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3963 i=s->ctx->app_verify_callback(&ctx)
3964 has been changed into
3965 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3967 To update applications using SSL_CTX_set_cert_verify_callback(),
3968 a dummy argument can be added to their callback functions.
3969 [D. K. Smetters <smetters@parc.xerox.com>]
3971 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3972 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3974 *) Add and OPENSSL_LOAD_CONF define which will cause
3975 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3976 This allows older applications to transparently support certain
3977 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3978 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3979 load the config file and OPENSSL_add_all_algorithms_conf() which will
3980 always load it have also been added.
3983 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3984 Adjust NIDs and EVP layer.
3985 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3987 *) Config modules support in openssl utility.
3989 Most commands now load modules from the config file,
3990 though in a few (such as version) this isn't done
3991 because it couldn't be used for anything.
3993 In the case of ca and req the config file used is
3994 the same as the utility itself: that is the -config
3995 command line option can be used to specify an
3999 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4000 use "openssl_conf" if filename is NULL use default openssl config file.
4003 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4004 config section name. Add a new flag to tolerate a missing config file
4005 and move code to CONF_modules_load_file().
4008 *) Support for crypto accelerator cards from Accelerated Encryption
4009 Processing, www.aep.ie. (Use engine 'aep')
4010 The support was copied from 0.9.6c [engine] and adapted/corrected
4011 to work with the new engine framework.
4012 [AEP Inc. and Richard Levitte]
4014 *) Support for SureWare crypto accelerator cards from Baltimore
4015 Technologies. (Use engine 'sureware')
4016 The support was copied from 0.9.6c [engine] and adapted
4017 to work with the new engine framework.
4020 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4021 make the newer ENGINE framework commands for the CHIL engine work.
4022 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4024 *) Make it possible to produce shared libraries on ReliantUNIX.
4025 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4027 *) Add the configuration target debug-linux-ppro.
4028 Make 'openssl rsa' use the general key loading routines
4029 implemented in apps.c, and make those routines able to
4030 handle the key format FORMAT_NETSCAPE and the variant
4032 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4034 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4035 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4037 *) Add -keyform to rsautl, and document -engine.
4038 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4040 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4041 BIO_R_NO_SUCH_FILE error code rather than the generic
4042 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4045 *) Add new functions
4047 ERR_peek_last_error_line
4048 ERR_peek_last_error_line_data.
4049 These are similar to
4052 ERR_peek_error_line_data,
4053 but report on the latest error recorded rather than the first one
4054 still in the error queue.
4055 [Ben Laurie, Bodo Moeller]
4057 *) default_algorithms option in ENGINE config module. This allows things
4059 default_algorithms = ALL
4060 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4063 *) Prelminary ENGINE config module.
4066 *) New experimental application configuration code.
4069 *) Change the AES code to follow the same name structure as all other
4070 symmetric ciphers, and behave the same way. Move everything to
4071 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4072 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4074 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4075 [Ben Laurie and Theo de Raadt]
4077 *) Add option to output public keys in req command.
4078 [Massimiliano Pala madwolf@openca.org]
4080 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4081 (up to about 10% better than before for P-192 and P-224).
4084 *) New functions/macros
4086 SSL_CTX_set_msg_callback(ctx, cb)
4087 SSL_CTX_set_msg_callback_arg(ctx, arg)
4088 SSL_set_msg_callback(ssl, cb)
4089 SSL_set_msg_callback_arg(ssl, arg)
4091 to request calling a callback function
4093 void cb(int write_p, int version, int content_type,
4094 const void *buf, size_t len, SSL *ssl, void *arg)
4096 whenever a protocol message has been completely received
4097 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4098 protocol version according to which the SSL library interprets
4099 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4100 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4101 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4102 specification (change_cipher_spec(20), alert(21), handshake(22)).
4103 'buf' and 'len' point to the actual message, 'ssl' to the
4104 SSL object, and 'arg' is the application-defined value set by
4105 SSL[_CTX]_set_msg_callback_arg().
4107 'openssl s_client' and 'openssl s_server' have new '-msg' options
4108 to enable a callback that displays all protocol messages.
4111 *) Change the shared library support so shared libraries are built as
4112 soon as the corresponding static library is finished, and thereby get
4113 openssl and the test programs linked against the shared library.
4114 This still only happens when the keyword "shard" has been given to
4115 the configuration scripts.
4117 NOTE: shared library support is still an experimental thing, and
4118 backward binary compatibility is still not guaranteed.
4119 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4121 *) Add support for Subject Information Access extension.
4122 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4124 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4125 additional bytes when new memory had to be allocated, not just
4126 when reusing an existing buffer.
4129 *) New command line and configuration option 'utf8' for the req command.
4130 This allows field values to be specified as UTF8 strings.
4133 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4134 runs for the former and machine-readable output for the latter.
4137 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4138 of the e-mail address in the DN (i.e., it will go into a certificate
4139 extension only). The new configuration file option 'email_in_dn = no'
4140 has the same effect.
4141 [Massimiliano Pala madwolf@openca.org]
4143 *) Change all functions with names starting with des_ to be starting
4144 with DES_ instead. Add wrappers that are compatible with libdes,
4145 but are named _ossl_old_des_*. Finally, add macros that map the
4146 des_* symbols to the corresponding _ossl_old_des_* if libdes
4147 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4148 desired, the des_* symbols will be mapped to DES_*, with one
4151 Since we provide two compatibility mappings, the user needs to
4152 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4153 compatibility is desired. The default (i.e., when that macro
4154 isn't defined) is OpenSSL 0.9.6c compatibility.
4156 There are also macros that enable and disable the support of old
4157 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4158 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4159 are defined, the default will apply: to support the old des routines.
4161 In either case, one must include openssl/des.h to get the correct
4162 definitions. Do not try to just include openssl/des_old.h, that
4165 NOTE: This is a major break of an old API into a new one. Software
4166 authors are encouraged to switch to the DES_ style functions. Some
4167 time in the future, des_old.h and the libdes compatibility functions
4168 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4169 default), and then completely removed.
4172 *) Test for certificates which contain unsupported critical extensions.
4173 If such a certificate is found during a verify operation it is
4174 rejected by default: this behaviour can be overridden by either
4175 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4176 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4177 X509_supported_extension() has also been added which returns 1 if a
4178 particular extension is supported.
4181 *) Modify the behaviour of EVP cipher functions in similar way to digests
4182 to retain compatibility with existing code.
4185 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4186 compatibility with existing code. In particular the 'ctx' parameter does
4187 not have to be to be initialized before the call to EVP_DigestInit() and
4188 it is tidied up after a call to EVP_DigestFinal(). New function
4189 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4190 EVP_MD_CTX_copy() changed to not require the destination to be
4191 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4192 requires the destination to be valid.
4194 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4195 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4198 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4199 so that complete 'Handshake' protocol structures are kept in memory
4200 instead of overwriting 'msg_type' and 'length' with 'body' data.
4203 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4204 [Massimo Santin via Richard Levitte]
4206 *) Major restructuring to the underlying ENGINE code. This includes
4207 reduction of linker bloat, separation of pure "ENGINE" manipulation
4208 (initialisation, etc) from functionality dealing with implementations
4209 of specific crypto iterfaces. This change also introduces integrated
4210 support for symmetric ciphers and digest implementations - so ENGINEs
4211 can now accelerate these by providing EVP_CIPHER and EVP_MD
4212 implementations of their own. This is detailed in crypto/engine/README
4213 as it couldn't be adequately described here. However, there are a few
4214 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4215 were changed in the original introduction of ENGINE code have now
4216 reverted back - the hooking from this code to ENGINE is now a good
4217 deal more passive and at run-time, operations deal directly with
4218 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4219 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4220 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4221 they were not being used by the framework as there is no concept of a
4222 BIGNUM_METHOD and they could not be generalised to the new
4223 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4224 ENGINE_cpy() has been removed as it cannot be consistently defined in
4228 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4231 *) Change mkdef.pl to sort symbols that get the same entry number,
4232 and make sure the automatically generated functions ERR_load_*
4233 become part of libeay.num as well.
4236 *) New function SSL_renegotiate_pending(). This returns true once
4237 renegotiation has been requested (either SSL_renegotiate() call
4238 or HelloRequest/ClientHello receveived from the peer) and becomes
4239 false once a handshake has been completed.
4240 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4241 sends a HelloRequest, but does not ensure that a handshake takes
4242 place. SSL_renegotiate_pending() is useful for checking if the
4243 client has followed the request.)
4246 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4247 By default, clients may request session resumption even during
4248 renegotiation (if session ID contexts permit); with this option,
4249 session resumption is possible only in the first handshake.
4251 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4252 more bits available for options that should not be part of
4253 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4256 *) Add some demos for certificate and certificate request creation.
4259 *) Make maximum certificate chain size accepted from the peer application
4260 settable (SSL*_get/set_max_cert_list()), as proposed by
4261 "Douglas E. Engert" <deengert@anl.gov>.
4264 *) Add support for shared libraries for Unixware-7
4265 (Boyd Lynn Gerber <gerberb@zenez.com>).
4268 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4269 be done prior to destruction. Use this to unload error strings from
4270 ENGINEs that load their own error strings. NB: This adds two new API
4271 functions to "get" and "set" this destroy handler in an ENGINE.
4274 *) Alter all existing ENGINE implementations (except "openssl" and
4275 "openbsd") to dynamically instantiate their own error strings. This
4276 makes them more flexible to be built both as statically-linked ENGINEs
4277 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4278 Also, add stub code to each that makes building them as self-contained
4279 shared-libraries easier (see README.ENGINE).
4282 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4283 implementations into applications that are completely implemented in
4284 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4285 commands that can be used to configure what shared-library to load and
4286 to control aspects of the way it is handled. Also, made an update to
4287 the README.ENGINE file that brings its information up-to-date and
4288 provides some information and instructions on the "dynamic" ENGINE
4289 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4292 *) Make it possible to unload ranges of ERR strings with a new
4293 "ERR_unload_strings" function.
4296 *) Add a copy() function to EVP_MD.
4299 *) Make EVP_MD routines take a context pointer instead of just the
4300 md_data void pointer.
4303 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4304 that the digest can only process a single chunk of data
4305 (typically because it is provided by a piece of
4306 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4307 is only going to provide a single chunk of data, and hence the
4308 framework needn't accumulate the data for oneshot drivers.
4311 *) As with "ERR", make it possible to replace the underlying "ex_data"
4312 functions. This change also alters the storage and management of global
4313 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4314 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4315 index counters. The API functions that use this state have been changed
4316 to take a "class_index" rather than pointers to the class's local STACK
4317 and counter, and there is now an API function to dynamically create new
4318 classes. This centralisation allows us to (a) plug a lot of the
4319 thread-safety problems that existed, and (b) makes it possible to clean
4320 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4321 such data would previously have always leaked in application code and
4322 workarounds were in place to make the memory debugging turn a blind eye
4323 to it. Application code that doesn't use this new function will still
4324 leak as before, but their memory debugging output will announce it now
4325 rather than letting it slide.
4327 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4328 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4329 has a return value to indicate success or failure.
4332 *) Make it possible to replace the underlying "ERR" functions such that the
4333 global state (2 LHASH tables and 2 locks) is only used by the "default"
4334 implementation. This change also adds two functions to "get" and "set"
4335 the implementation prior to it being automatically set the first time
4336 any other ERR function takes place. Ie. an application can call "get",
4337 pass the return value to a module it has just loaded, and that module
4338 can call its own "set" function using that value. This means the
4339 module's "ERR" operations will use (and modify) the error state in the
4340 application and not in its own statically linked copy of OpenSSL code.
4343 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4344 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4345 the operation, and provides a more encapsulated way for external code
4346 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4347 to use these functions rather than manually incrementing the counts.
4349 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4352 *) Add EVP test program.
4355 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4358 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4359 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4360 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4361 These allow a CRL to be built without having to access X509_CRL fields
4362 directly. Modify 'ca' application to use new functions.
4365 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4366 bug workarounds. Rollback attack detection is a security feature.
4367 The problem will only arise on OpenSSL servers when TLSv1 is not
4368 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4369 Software authors not wanting to support TLSv1 will have special reasons
4370 for their choice and can explicitly enable this option.
4371 [Bodo Moeller, Lutz Jaenicke]
4373 *) Rationalise EVP so it can be extended: don't include a union of
4374 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4375 (similar to those existing for EVP_CIPHER_CTX).
4380 EVP_MD_CTX_init(&md); /* new function call */
4381 EVP_DigestInit(&md, EVP_sha1());
4382 EVP_DigestUpdate(&md, in, len);
4383 EVP_DigestFinal(&md, out, NULL);
4384 EVP_MD_CTX_cleanup(&md); /* new function call */
4388 *) Make DES key schedule conform to the usual scheme, as well as
4389 correcting its structure. This means that calls to DES functions
4390 now have to pass a pointer to a des_key_schedule instead of a
4391 plain des_key_schedule (which was actually always a pointer
4394 des_key_schedule ks;
4396 des_set_key_checked(..., &ks);
4397 des_ncbc_encrypt(..., &ks, ...);
4399 (Note that a later change renames 'des_...' into 'DES_...'.)
4402 *) Initial reduction of linker bloat: the use of some functions, such as
4403 PEM causes large amounts of unused functions to be linked in due to
4404 poor organisation. For example pem_all.c contains every PEM function
4405 which has a knock on effect of linking in large amounts of (unused)
4406 ASN1 code. Grouping together similar functions and splitting unrelated
4407 functions prevents this.
4410 *) Cleanup of EVP macros.
4413 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4414 correct _ecb suffix.
4417 *) Add initial OCSP responder support to ocsp application. The
4418 revocation information is handled using the text based index
4419 use by the ca application. The responder can either handle
4420 requests generated internally, supplied in files (for example
4421 via a CGI script) or using an internal minimal server.
4424 *) Add configuration choices to get zlib compression for TLS.
4427 *) Changes to Kerberos SSL for RFC 2712 compliance:
4428 1. Implemented real KerberosWrapper, instead of just using
4429 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4430 2. Implemented optional authenticator field of KerberosWrapper.
4432 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4433 and authenticator structs; see crypto/krb5/.
4435 Generalized Kerberos calls to support multiple Kerberos libraries.
4436 [Vern Staats <staatsvr@asc.hpc.mil>,
4437 Jeffrey Altman <jaltman@columbia.edu>
4438 via Richard Levitte]
4440 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4441 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4442 values for each of the key sizes rather than having just
4443 parameters (and 'speed' generating keys each time).
4446 *) Speed up EVP routines.
4449 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4450 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4451 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4452 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4454 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4455 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4456 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4459 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4461 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4464 *) Added the OS2-EMX target.
4465 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4467 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4468 to support NCONF routines in extension code. New function CONF_set_nconf()
4469 to allow functions which take an NCONF to also handle the old LHASH
4470 structure: this means that the old CONF compatible routines can be
4471 retained (in particular wrt extensions) without having to duplicate the
4472 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4475 *) Enhance the general user interface with mechanisms for inner control
4476 and with possibilities to have yes/no kind of prompts.
4479 *) Change all calls to low level digest routines in the library and
4480 applications to use EVP. Add missing calls to HMAC_cleanup() and
4481 don't assume HMAC_CTX can be copied using memcpy().
4482 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4484 *) Add the possibility to control engines through control names but with
4485 arbitrary arguments instead of just a string.
4486 Change the key loaders to take a UI_METHOD instead of a callback
4487 function pointer. NOTE: this breaks binary compatibility with earlier
4488 versions of OpenSSL [engine].
4489 Adapt the nCipher code for these new conditions and add a card insertion
4493 *) Enhance the general user interface with mechanisms to better support
4494 dialog box interfaces, application-defined prompts, the possibility
4495 to use defaults (for example default passwords from somewhere else)
4496 and interrupts/cancellations.
4499 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4500 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4503 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4504 tidy up some unnecessarily weird code in 'sk_new()').
4505 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4507 *) Change the key loading routines for ENGINEs to use the same kind
4508 callback (pem_password_cb) as all other routines that need this
4512 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4513 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4514 than this minimum value is recommended.
4517 *) New random seeder for OpenVMS, using the system process statistics
4518 that are easily reachable.
4521 *) Windows apparently can't transparently handle global
4522 variables defined in DLLs. Initialisations such as:
4524 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4526 wont compile. This is used by the any applications that need to
4527 declare their own ASN1 modules. This was fixed by adding the option
4528 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4529 needed for static libraries under Win32.
4532 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4533 setting of purpose and trust fields. New X509_STORE trust and
4534 purpose functions and tidy up setting in other SSL functions.
4537 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4538 structure. These are inherited by X509_STORE_CTX when it is
4539 initialised. This allows various defaults to be set in the
4540 X509_STORE structure (such as flags for CRL checking and custom
4541 purpose or trust settings) for functions which only use X509_STORE_CTX
4542 internally such as S/MIME.
4544 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4545 trust settings if they are not set in X509_STORE. This allows X509_STORE
4546 purposes and trust (in S/MIME for example) to override any set by default.
4548 Add command line options for CRL checking to smime, s_client and s_server
4552 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4553 are set then the CRL is looked up in the X509_STORE structure and
4554 its validity and signature checked, then if the certificate is found
4555 in the CRL the verify fails with a revoked error.
4557 Various new CRL related callbacks added to X509_STORE_CTX structure.
4559 Command line options added to 'verify' application to support this.
4561 This needs some additional work, such as being able to handle multiple
4562 CRLs with different times, extension based lookup (rather than just
4563 by subject name) and ultimately more complete V2 CRL extension
4567 *) Add a general user interface API (crypto/ui/). This is designed
4568 to replace things like des_read_password and friends (backward
4569 compatibility functions using this new API are provided).
4570 The purpose is to remove prompting functions from the DES code
4571 section as well as provide for prompting through dialog boxes in
4572 a window system and the like.
4575 *) Add "ex_data" support to ENGINE so implementations can add state at a
4576 per-structure level rather than having to store it globally.
4579 *) Make it possible for ENGINE structures to be copied when retrieved by
4580 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4581 This causes the "original" ENGINE structure to act like a template,
4582 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4583 operational state can be localised to each ENGINE structure, despite the
4584 fact they all share the same "methods". New ENGINE structures returned in
4585 this case have no functional references and the return value is the single
4586 structural reference. This matches the single structural reference returned
4587 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4591 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4592 needs to match any other type at all we need to manually clear the
4596 *) Changes to the "openssl engine" utility to include;
4597 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4598 about an ENGINE's available control commands.
4599 - executing control commands from command line arguments using the
4600 '-pre' and '-post' switches. '-post' is only used if '-t' is
4601 specified and the ENGINE is successfully initialised. The syntax for
4602 the individual commands are colon-separated, for example;
4603 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4606 *) New dynamic control command support for ENGINEs. ENGINEs can now
4607 declare their own commands (numbers), names (strings), descriptions,
4608 and input types for run-time discovery by calling applications. A
4609 subset of these commands are implicitly classed as "executable"
4610 depending on their input type, and only these can be invoked through
4611 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4612 can be based on user input, config files, etc). The distinction is
4613 that "executable" commands cannot return anything other than a boolean
4614 result and can only support numeric or string input, whereas some
4615 discoverable commands may only be for direct use through
4616 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4617 pointers, or other custom uses. The "executable" commands are to
4618 support parameterisations of ENGINE behaviour that can be
4619 unambiguously defined by ENGINEs and used consistently across any
4620 OpenSSL-based application. Commands have been added to all the
4621 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4622 control over shared-library paths without source code alterations.
4625 *) Changed all ENGINE implementations to dynamically allocate their
4626 ENGINEs rather than declaring them statically. Apart from this being
4627 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4628 this also allows the implementations to compile without using the
4629 internal engine_int.h header.
4632 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4633 'const' value. Any code that should be able to modify a RAND_METHOD
4634 should already have non-const pointers to it (ie. they should only
4635 modify their own ones).
4638 *) Made a variety of little tweaks to the ENGINE code.
4639 - "atalla" and "ubsec" string definitions were moved from header files
4640 to C code. "nuron" string definitions were placed in variables
4641 rather than hard-coded - allowing parameterisation of these values
4642 later on via ctrl() commands.
4643 - Removed unused "#if 0"'d code.
4644 - Fixed engine list iteration code so it uses ENGINE_free() to release
4645 structural references.
4646 - Constified the RAND_METHOD element of ENGINE structures.
4647 - Constified various get/set functions as appropriate and added
4648 missing functions (including a catch-all ENGINE_cpy that duplicates
4649 all ENGINE values onto a new ENGINE except reference counts/state).
4650 - Removed NULL parameter checks in get/set functions. Setting a method
4651 or function to NULL is a way of cancelling out a previously set
4652 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4653 and doesn't justify the extra error symbols and code.
4654 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4655 flags from engine_int.h to engine.h.
4656 - Changed prototypes for ENGINE handler functions (init(), finish(),
4657 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4660 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4661 to the algorithm using long division. The binary algorithm can be
4662 used only if the modulus is odd. On 32-bit systems, it is faster
4663 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4664 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4665 up to 450 bits. In 64-bit environments, the binary algorithm
4666 appears to be advantageous for much longer moduli; here we use it
4667 for moduli up to 2048 bits.
4670 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4671 could not support the combine flag in choice fields.
4674 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4675 extensions from a certificate request to the certificate.
4678 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4679 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4680 file: this allows the display of the certificate about to be
4681 signed to be customised, to allow certain fields to be included
4682 or excluded and extension details. The old system didn't display
4683 multicharacter strings properly, omitted fields not in the policy
4684 and couldn't display additional details such as extensions.
4687 *) Function EC_POINTs_mul for multiple scalar multiplication
4688 of an arbitrary number of elliptic curve points
4689 \sum scalars[i]*points[i],
4690 optionally including the generator defined for the EC_GROUP:
4691 scalar*generator + \sum scalars[i]*points[i].
4693 EC_POINT_mul is a simple wrapper function for the typical case
4694 that the point list has just one item (besides the optional
4698 *) First EC_METHODs for curves over GF(p):
4700 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4701 operations and provides various method functions that can also
4702 operate with faster implementations of modular arithmetic.
4704 EC_GFp_mont_method() reuses most functions that are part of
4705 EC_GFp_simple_method, but uses Montgomery arithmetic.
4707 [Bodo Moeller; point addition and point doubling
4708 implementation directly derived from source code provided by
4709 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4711 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4712 crypto/ec/ec_lib.c):
4714 Curves are EC_GROUP objects (with an optional group generator)
4715 based on EC_METHODs that are built into the library.
4717 Points are EC_POINT objects based on EC_GROUP objects.
4719 Most of the framework would be able to handle curves over arbitrary
4720 finite fields, but as there are no obvious types for fields other
4721 than GF(p), some functions are limited to that for now.
4724 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4725 that the file contains a complete HTTP response.
4728 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4729 change the def and num file printf format specifier from "%-40sXXX"
4730 to "%-39s XXX". The latter will always guarantee a space after the
4731 field while the former will cause them to run together if the field
4732 is 40 of more characters long.
4735 *) Constify the cipher and digest 'method' functions and structures
4736 and modify related functions to take constant EVP_MD and EVP_CIPHER
4740 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4741 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4744 *) Modify EVP_Digest*() routines so they now return values. Although the
4745 internal software routines can never fail additional hardware versions
4749 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4751 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4752 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4755 ERR_R_NESTED_ASN1_ERROR
4757 ERR_R_MISSING_ASN1_EOS
4758 were 4 .. 9, conflicting with
4759 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4761 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4762 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4764 Add new error code 'ERR_R_INTERNAL_ERROR'.
4767 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4771 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4772 sets the subject name for a new request or supersedes the
4773 subject name in a given request. Formats that can be parsed are
4774 'CN=Some Name, OU=myOU, C=IT'
4776 'CN=Some Name/OU=myOU/C=IT'.
4778 Add options '-batch' and '-verbose' to 'openssl req'.
4779 [Massimiliano Pala <madwolf@hackmasters.net>]
4781 *) Introduce the possibility to access global variables through
4782 functions on platform were that's the best way to handle exporting
4783 global variables in shared libraries. To enable this functionality,
4784 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4785 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4786 is normally done by Configure or something similar).
4788 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4789 in the source file (foo.c) like this:
4791 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4792 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4794 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4795 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4797 OPENSSL_DECLARE_GLOBAL(int,foo);
4798 #define foo OPENSSL_GLOBAL_REF(foo)
4799 OPENSSL_DECLARE_GLOBAL(double,bar);
4800 #define bar OPENSSL_GLOBAL_REF(bar)
4802 The #defines are very important, and therefore so is including the
4803 header file everywhere where the defined globals are used.
4805 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4806 of ASN.1 items, but that structure is a bit different.
4808 The largest change is in util/mkdef.pl which has been enhanced with
4809 better and easier to understand logic to choose which symbols should
4810 go into the Windows .def files as well as a number of fixes and code
4811 cleanup (among others, algorithm keywords are now sorted
4812 lexicographically to avoid constant rewrites).
4815 *) In BN_div() keep a copy of the sign of 'num' before writing the
4816 result to 'rm' because if rm==num the value will be overwritten
4817 and produce the wrong result if 'num' is negative: this caused
4818 problems with BN_mod() and BN_nnmod().
4821 *) Function OCSP_request_verify(). This checks the signature on an
4822 OCSP request and verifies the signer certificate. The signer
4823 certificate is just checked for a generic purpose and OCSP request
4827 *) Add OCSP_check_validity() function to check the validity of OCSP
4828 responses. OCSP responses are prepared in real time and may only
4829 be a few seconds old. Simply checking that the current time lies
4830 between thisUpdate and nextUpdate max reject otherwise valid responses
4831 caused by either OCSP responder or client clock inaccuracy. Instead
4832 we allow thisUpdate and nextUpdate to fall within a certain period of
4833 the current time. The age of the response can also optionally be
4834 checked. Two new options -validity_period and -status_age added to
4838 *) If signature or public key algorithm is unrecognized print out its
4839 OID rather that just UNKNOWN.
4842 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4843 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4844 ID to be generated from the issuer certificate alone which can then be
4845 passed to OCSP_id_issuer_cmp().
4848 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4849 ASN1 modules to export functions returning ASN1_ITEM pointers
4850 instead of the ASN1_ITEM structures themselves. This adds several
4851 new macros which allow the underlying ASN1 function/structure to
4852 be accessed transparently. As a result code should not use ASN1_ITEM
4853 references directly (such as &X509_it) but instead use the relevant
4854 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4855 use of the new ASN1 code on platforms where exporting structures
4856 is problematical (for example in shared libraries) but exporting
4857 functions returning pointers to structures is not.
4860 *) Add support for overriding the generation of SSL/TLS session IDs.
4861 These callbacks can be registered either in an SSL_CTX or per SSL.
4862 The purpose of this is to allow applications to control, if they wish,
4863 the arbitrary values chosen for use as session IDs, particularly as it
4864 can be useful for session caching in multiple-server environments. A
4865 command-line switch for testing this (and any client code that wishes
4866 to use such a feature) has been added to "s_server".
4867 [Geoff Thorpe, Lutz Jaenicke]
4869 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4870 of the form '#if defined(...) || defined(...) || ...' and
4871 '#if !defined(...) && !defined(...) && ...'. This also avoids
4872 the growing number of special cases it was previously handling.
4875 *) Make all configuration macros available for application by making
4876 sure they are available in opensslconf.h, by giving them names starting
4877 with "OPENSSL_" to avoid conflicts with other packages and by making
4878 sure e_os2.h will cover all platform-specific cases together with
4880 Additionally, it is now possible to define configuration/platform-
4881 specific names (called "system identities"). In the C code, these
4882 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4883 macro with the name beginning with "OPENSSL_SYS_", which is determined
4884 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4888 *) New option -set_serial to 'req' and 'x509' this allows the serial
4889 number to use to be specified on the command line. Previously self
4890 signed certificates were hard coded with serial number 0 and the
4891 CA options of 'x509' had to use a serial number in a file which was
4895 *) New options to 'ca' utility to support V2 CRL entry extensions.
4896 Currently CRL reason, invalidity date and hold instruction are
4897 supported. Add new CRL extensions to V3 code and some new objects.
4900 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4901 disable standard block padding (aka PKCS#5 padding) in the EVP
4902 API, which was previously mandatory. This means that the data is
4903 not padded in any way and so the total length much be a multiple
4904 of the block size, otherwise an error occurs.
4907 *) Initial (incomplete) OCSP SSL support.
4910 *) New function OCSP_parse_url(). This splits up a URL into its host,
4911 port and path components: primarily to parse OCSP URLs. New -url
4912 option to ocsp utility.
4915 *) New nonce behavior. The return value of OCSP_check_nonce() now
4916 reflects the various checks performed. Applications can decide
4917 whether to tolerate certain situations such as an absent nonce
4918 in a response when one was present in a request: the ocsp application
4919 just prints out a warning. New function OCSP_add1_basic_nonce()
4920 this is to allow responders to include a nonce in a response even if
4921 the request is nonce-less.
4924 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4925 skipped when using openssl x509 multiple times on a single input file,
4926 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4929 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4930 set string type: to handle setting ASN1_TIME structures. Fix ca
4931 utility to correctly initialize revocation date of CRLs.
4934 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4935 the clients preferred ciphersuites and rather use its own preferences.
4936 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4937 Internet Explorer by ensuring unchanged hash method during stepup.
4938 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4941 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4942 to aes and add a new 'exist' option to print out symbols that don't
4946 *) Additional options to ocsp utility to allow flags to be set and
4947 additional certificates supplied.
4950 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4951 OCSP client a number of certificate to only verify the response
4955 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4956 handle the new API. Currently only ECB, CBC modes supported. Add new
4959 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4960 Encryption Standard (AES) Ciphersuites for Transport Layer
4961 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4962 not enabled by default and were not part of the "ALL" ciphersuite
4963 alias because they were not yet official; they could be
4964 explicitly requested by specifying the "AESdraft" ciphersuite
4965 group alias. In the final release of OpenSSL 0.9.7, the group
4966 alias is called "AES" and is part of "ALL".)
4967 [Ben Laurie, Steve Henson, Bodo Moeller]
4969 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4970 request to response.
4973 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4974 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4975 extract information from a certificate request. OCSP_response_create()
4976 creates a response and optionally adds a basic response structure.
4977 OCSP_basic_add1_status() adds a complete single response to a basic
4978 response and returns the OCSP_SINGLERESP structure just added (to allow
4979 extensions to be included for example). OCSP_basic_add1_cert() adds a
4980 certificate to a basic response and OCSP_basic_sign() signs a basic
4981 response with various flags. New helper functions ASN1_TIME_check()
4982 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4983 (converts ASN1_TIME to GeneralizedTime).
4986 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4987 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4988 structure from a certificate. X509_pubkey_digest() digests the public_key
4989 contents: this is used in various key identifiers.
4992 *) Make sk_sort() tolerate a NULL argument.
4993 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4995 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4996 passed by the function are trusted implicitly. If any of them signed the
4997 response then it is assumed to be valid and is not verified.
5000 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5001 to data. This was previously part of the PKCS7 ASN1 code. This
5002 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5003 [Steve Henson, reported by Kenneth R. Robinette
5004 <support@securenetterm.com>]
5006 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5007 routines: without these tracing memory leaks is very painful.
5008 Fix leaks in PKCS12 and PKCS7 routines.
5011 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5012 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5013 effectively meant GeneralizedTime would never be used. Now it
5014 is initialised to -1 but X509_time_adj() now has to check the value
5015 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5016 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5017 [Steve Henson, reported by Kenneth R. Robinette
5018 <support@securenetterm.com>]
5020 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5021 result in a zero length in the ASN1_INTEGER structure which was
5022 not consistent with the structure when d2i_ASN1_INTEGER() was used
5023 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5024 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5025 where it did not print out a minus for negative ASN1_INTEGER.
5028 *) Add summary printout to ocsp utility. The various functions which
5029 convert status values to strings have been renamed to:
5030 OCSP_response_status_str(), OCSP_cert_status_str() and
5031 OCSP_crl_reason_str() and are no longer static. New options
5032 to verify nonce values and to disable verification. OCSP response
5033 printout format cleaned up.
5036 *) Add additional OCSP certificate checks. These are those specified
5037 in RFC2560. This consists of two separate checks: the CA of the
5038 certificate being checked must either be the OCSP signer certificate
5039 or the issuer of the OCSP signer certificate. In the latter case the
5040 OCSP signer certificate must contain the OCSP signing extended key
5041 usage. This check is performed by attempting to match the OCSP
5042 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5043 in the OCSP_CERTID structures of the response.
5046 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5047 and related routines. This uses the standard OpenSSL certificate
5048 verify routines to perform initial checks (just CA validity) and
5049 to obtain the certificate chain. Then additional checks will be
5050 performed on the chain. Currently the root CA is checked to see
5051 if it is explicitly trusted for OCSP signing. This is used to set
5052 a root CA as a global signing root: that is any certificate that
5053 chains to that CA is an acceptable OCSP signing certificate.
5056 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5057 extensions from a separate configuration file.
5058 As when reading extensions from the main configuration file,
5059 the '-extensions ...' option may be used for specifying the
5061 [Massimiliano Pala <madwolf@comune.modena.it>]
5063 *) New OCSP utility. Allows OCSP requests to be generated or
5064 read. The request can be sent to a responder and the output
5065 parsed, outputed or printed in text form. Not complete yet:
5066 still needs to check the OCSP response validity.
5069 *) New subcommands for 'openssl ca':
5070 'openssl ca -status <serial>' prints the status of the cert with
5071 the given serial number (according to the index file).
5072 'openssl ca -updatedb' updates the expiry status of certificates
5074 [Massimiliano Pala <madwolf@comune.modena.it>]
5076 *) New '-newreq-nodes' command option to CA.pl. This is like
5077 '-newreq', but calls 'openssl req' with the '-nodes' option
5078 so that the resulting key is not encrypted.
5079 [Damien Miller <djm@mindrot.org>]
5081 *) New configuration for the GNU Hurd.
5082 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5084 *) Initial code to implement OCSP basic response verify. This
5085 is currently incomplete. Currently just finds the signer's
5086 certificate and verifies the signature on the response.
5089 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5090 value of OPENSSLDIR. This is available via the new '-d' option
5091 to 'openssl version', and is also included in 'openssl version -a'.
5094 *) Allowing defining memory allocation callbacks that will be given
5095 file name and line number information in additional arguments
5096 (a const char* and an int). The basic functionality remains, as
5097 well as the original possibility to just replace malloc(),
5098 realloc() and free() by functions that do not know about these
5099 additional arguments. To register and find out the current
5100 settings for extended allocation functions, the following
5101 functions are provided:
5103 CRYPTO_set_mem_ex_functions
5104 CRYPTO_set_locked_mem_ex_functions
5105 CRYPTO_get_mem_ex_functions
5106 CRYPTO_get_locked_mem_ex_functions
5108 These work the same way as CRYPTO_set_mem_functions and friends.
5109 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5110 extended allocation function is enabled.
5111 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5112 a conventional allocation function is enabled.
5113 [Richard Levitte, Bodo Moeller]
5115 *) Finish off removing the remaining LHASH function pointer casts.
5116 There should no longer be any prototype-casting required when using
5117 the LHASH abstraction, and any casts that remain are "bugs". See
5118 the callback types and macros at the head of lhash.h for details
5119 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5122 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5123 If /dev/[u]random devices are not available or do not return enough
5124 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5126 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5127 /etc/entropy will be queried once each in this sequence, quering stops
5128 when enough entropy was collected without querying more sockets.
5131 *) Change the Unix RAND_poll() variant to be able to poll several
5132 random devices, as specified by DEVRANDOM, until a sufficient amount
5133 of data has been collected. We spend at most 10 ms on each file
5134 (select timeout) and read in non-blocking mode. DEVRANDOM now
5135 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5136 (previously it was just the string "/dev/urandom"), so on typical
5137 platforms the 10 ms delay will never occur.
5138 Also separate out the Unix variant to its own file, rand_unix.c.
5139 For VMS, there's a currently-empty rand_vms.c.
5142 *) Move OCSP client related routines to ocsp_cl.c. These
5143 provide utility functions which an application needing
5144 to issue a request to an OCSP responder and analyse the
5145 response will typically need: as opposed to those which an
5146 OCSP responder itself would need which will be added later.
5148 OCSP_request_sign() signs an OCSP request with an API similar
5149 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5150 response. OCSP_response_get1_basic() extracts basic response
5151 from response. OCSP_resp_find_status(): finds and extracts status
5152 information from an OCSP_CERTID structure (which will be created
5153 when the request structure is built). These are built from lower
5154 level functions which work on OCSP_SINGLERESP structures but
5155 wont normally be used unless the application wishes to examine
5156 extensions in the OCSP response for example.
5158 Replace nonce routines with a pair of functions.
5159 OCSP_request_add1_nonce() adds a nonce value and optionally
5160 generates a random value. OCSP_check_nonce() checks the
5161 validity of the nonce in an OCSP response.
5164 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5165 This doesn't copy the supplied OCSP_CERTID and avoids the
5166 need to free up the newly created id. Change return type
5167 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5168 This can then be used to add extensions to the request.
5169 Deleted OCSP_request_new(), since most of its functionality
5170 is now in OCSP_REQUEST_new() (and the case insensitive name
5171 clash) apart from the ability to set the request name which
5172 will be added elsewhere.
5175 *) Update OCSP API. Remove obsolete extensions argument from
5176 various functions. Extensions are now handled using the new
5177 OCSP extension code. New simple OCSP HTTP function which
5178 can be used to send requests and parse the response.
5181 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5182 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5183 uses the special reorder version of SET OF to sort the attributes
5184 and reorder them to match the encoded order. This resolves a long
5185 standing problem: a verify on a PKCS7 structure just after signing
5186 it used to fail because the attribute order did not match the
5187 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5188 it uses the received order. This is necessary to tolerate some broken
5189 software that does not order SET OF. This is handled by encoding
5190 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5191 to produce the required SET OF.
5194 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5195 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5196 files to get correct declarations of the ASN.1 item variables.
5199 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5200 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5201 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5202 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5203 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5204 ASN1_ITEM and no wrapper functions.
5207 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5208 replace the old function pointer based I/O routines. Change most of
5209 the *_d2i_bio() and *_d2i_fp() functions to use these.
5212 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5213 lines, recognice more "algorithms" that can be deselected, and make
5214 it complain about algorithm deselection that isn't recognised.
5217 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5218 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5219 to use new functions. Add NO_ASN1_OLD which can be set to remove
5220 some old style ASN1 functions: this can be used to determine if old
5221 code will still work when these eventually go away.
5224 *) New extension functions for OCSP structures, these follow the
5225 same conventions as certificates and CRLs.
5228 *) New function X509V3_add1_i2d(). This automatically encodes and
5229 adds an extension. Its behaviour can be customised with various
5230 flags to append, replace or delete. Various wrappers added for
5231 certifcates and CRLs.
5234 *) Fix to avoid calling the underlying ASN1 print routine when
5235 an extension cannot be parsed. Correct a typo in the
5236 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5239 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5240 entries for variables.
5243 *) Add functionality to apps/openssl.c for detecting locking
5244 problems: As the program is single-threaded, all we have
5245 to do is register a locking callback using an array for
5246 storing which locks are currently held by the program.
5249 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5250 SSL_get_ex_data_X509_STORE_idx(), which is used in
5251 ssl_verify_cert_chain() and thus can be called at any time
5252 during TLS/SSL handshakes so that thread-safety is essential.
5253 Unfortunately, the ex_data design is not at all suited
5254 for multi-threaded use, so it probably should be abolished.
5257 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5258 [Broadcom, tweaked and integrated by Geoff Thorpe]
5260 *) Move common extension printing code to new function
5261 X509V3_print_extensions(). Reorganise OCSP print routines and
5262 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5265 *) New function X509_signature_print() to remove duplication in some
5269 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5270 set (this was treated exactly the same as SET OF previously). This
5271 is used to reorder the STACK representing the structure to match the
5272 encoding. This will be used to get round a problem where a PKCS7
5273 structure which was signed could not be verified because the STACK
5274 order did not reflect the encoded order.
5277 *) Reimplement the OCSP ASN1 module using the new code.
5280 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5281 for its ASN1 operations. The old style function pointers still exist
5282 for now but they will eventually go away.
5285 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5286 completely replaces the old ASN1 functionality with a table driven
5287 encoder and decoder which interprets an ASN1_ITEM structure describing
5288 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5289 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5290 has also been converted to the new form.
5293 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5294 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5295 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5296 for negative moduli.
5299 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5300 of not touching the result's sign bit.
5303 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5307 *) Changed the LHASH code to use prototypes for callbacks, and created
5308 macros to declare and implement thin (optionally static) functions
5309 that provide type-safety and avoid function pointer casting for the
5310 type-specific callbacks.
5313 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5315 [Veers Staats <staatsvr@asc.hpc.mil>,
5316 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5318 *) Reformat the FAQ so the different questions and answers can be divided
5319 in sections depending on the subject.
5322 *) Have the zlib compression code load ZLIB.DLL dynamically under
5326 *) New function BN_mod_sqrt for computing square roots modulo a prime
5327 (using the probabilistic Tonelli-Shanks algorithm unless
5328 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5329 be handled deterministically).
5330 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5332 *) Make BN_mod_inverse faster by explicitly handling small quotients
5333 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5334 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5337 *) New function BN_kronecker.
5340 *) Fix BN_gcd so that it works on negative inputs; the result is
5341 positive unless both parameters are zero.
5342 Previously something reasonably close to an infinite loop was
5343 possible because numbers could be growing instead of shrinking
5344 in the implementation of Euclid's algorithm.
5347 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5348 sign of the number in question.
5350 Fix BN_is_word(a,w) to work correctly for w == 0.
5352 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5353 because its test if the absolute value of 'a' equals 'w'.
5354 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5355 it exists mostly for use in the implementations of BN_is_zero(),
5356 BN_is_one(), and BN_is_word().
5359 *) New function BN_swap.
5362 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5363 the exponentiation functions are more likely to produce reasonable
5364 results on negative inputs.
5367 *) Change BN_mod_mul so that the result is always non-negative.
5368 Previously, it could be negative if one of the factors was negative;
5369 I don't think anyone really wanted that behaviour.
5372 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5373 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5374 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5375 and add new functions:
5384 BN_mod_lshift1_quick
5388 These functions always generate non-negative results.
5390 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5391 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5393 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5394 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5395 be reduced modulo m.
5396 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5399 The following entry accidentily appeared in the CHANGES file
5400 distributed with OpenSSL 0.9.7. The modifications described in
5401 it do *not* apply to OpenSSL 0.9.7.
5403 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5404 was actually never needed) and in BN_mul(). The removal in BN_mul()
5405 required a small change in bn_mul_part_recursive() and the addition
5406 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5407 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5408 bn_sub_words() and bn_add_words() except they take arrays with
5413 *) In 'openssl passwd', verify passwords read from the terminal
5414 unless the '-salt' option is used (which usually means that
5415 verification would just waste user's time since the resulting
5416 hash is going to be compared with some given password hash)
5417 or the new '-noverify' option is used.
5419 This is an incompatible change, but it does not affect
5420 non-interactive use of 'openssl passwd' (passwords on the command
5421 line, '-stdin' option, '-in ...' option) and thus should not
5425 *) Remove all references to RSAref, since there's no more need for it.
5428 *) Make DSO load along a path given through an environment variable
5429 (SHLIB_PATH) with shl_load().
5432 *) Constify the ENGINE code as a result of BIGNUM constification.
5433 Also constify the RSA code and most things related to it. In a
5434 few places, most notable in the depth of the ASN.1 code, ugly
5435 casts back to non-const were required (to be solved at a later
5439 *) Make it so the openssl application has all engines loaded by default.
5442 *) Constify the BIGNUM routines a little more.
5445 *) Add the following functions:
5447 ENGINE_load_cswift()
5449 ENGINE_load_atalla()
5451 ENGINE_load_builtin_engines()
5453 That way, an application can itself choose if external engines that
5454 are built-in in OpenSSL shall ever be used or not. The benefit is
5455 that applications won't have to be linked with libdl or other dso
5456 libraries unless it's really needed.
5458 Changed 'openssl engine' to load all engines on demand.
5459 Changed the engine header files to avoid the duplication of some
5460 declarations (they differed!).
5463 *) 'openssl engine' can now list capabilities.
5466 *) Better error reporting in 'openssl engine'.
5469 *) Never call load_dh_param(NULL) in s_server.
5472 *) Add engine application. It can currently list engines by name and
5473 identity, and test if they are actually available.
5476 *) Improve RPM specification file by forcing symbolic linking and making
5477 sure the installed documentation is also owned by root.root.
5478 [Damien Miller <djm@mindrot.org>]
5480 *) Give the OpenSSL applications more possibilities to make use of
5481 keys (public as well as private) handled by engines.
5484 *) Add OCSP code that comes from CertCo.
5487 *) Add VMS support for the Rijndael code.
5490 *) Added untested support for Nuron crypto accelerator.
5493 *) Add support for external cryptographic devices. This code was
5494 previously distributed separately as the "engine" branch.
5495 [Geoff Thorpe, Richard Levitte]
5497 *) Rework the filename-translation in the DSO code. It is now possible to
5498 have far greater control over how a "name" is turned into a filename
5499 depending on the operating environment and any oddities about the
5500 different shared library filenames on each system.
5503 *) Support threads on FreeBSD-elf in Configure.
5506 *) Fix for SHA1 assembly problem with MASM: it produces
5507 warnings about corrupt line number information when assembling
5508 with debugging information. This is caused by the overlapping
5510 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5513 NCONF_get_number() has no error checking at all. As a replacement,
5514 NCONF_get_number_e() is defined (_e for "error checking") and is
5515 promoted strongly. The old NCONF_get_number is kept around for
5516 binary backward compatibility.
5517 Make it possible for methods to load from something other than a BIO,
5518 by providing a function pointer that is given a name instead of a BIO.
5519 For example, this could be used to load configuration data from an
5523 *) Fix for non blocking accept BIOs. Added new I/O special reason
5524 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5525 with non blocking I/O was not possible because no retry code was
5526 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5530 *) Added the beginnings of Rijndael support.
5533 *) Fix for bug in DirectoryString mask setting. Add support for
5534 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5535 to allow certificate printing to more controllable, additional
5536 'certopt' option to 'x509' to allow new printing options to be
5540 *) Clean old EAY MD5 hack from e_os.h.
5543 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5545 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5546 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5547 [Joe Orton, Steve Henson]
5549 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5551 *) Fix additional bug revealed by the NISCC test suite:
5553 Stop bug triggering large recursion when presented with
5554 certain ASN.1 tags (CVE-2003-0851)
5557 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5559 *) Fix various bugs revealed by running the NISCC test suite:
5561 Stop out of bounds reads in the ASN1 code when presented with
5562 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5564 If verify callback ignores invalid public key errors don't try to check
5565 certificate signature with the NULL public key.
5569 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5570 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5574 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5575 extra data after the compression methods not only for TLS 1.0
5576 but also for SSL 3.0 (as required by the specification).
5577 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5579 *) Change X509_certificate_type() to mark the key as exported/exportable
5580 when it's 512 *bits* long, not 512 bytes.
5583 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5585 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5586 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5587 a protocol version number mismatch like a decryption error
5588 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5591 *) Turn on RSA blinding by default in the default implementation
5592 to avoid a timing attack. Applications that don't want it can call
5593 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5594 They would be ill-advised to do so in most cases.
5595 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5597 *) Change RSA blinding code so that it works when the PRNG is not
5598 seeded (in this case, the secret RSA exponent is abused as
5599 an unpredictable seed -- if it is not unpredictable, there
5600 is no point in blinding anyway). Make RSA blinding thread-safe
5601 by remembering the creator's thread ID in rsa->blinding and
5602 having all other threads use local one-time blinding factors
5603 (this requires more computation than sharing rsa->blinding, but
5604 avoids excessive locking; and if an RSA object is not shared
5605 between threads, blinding will still be very fast).
5608 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5610 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5611 via timing by performing a MAC computation even if incorrrect
5612 block cipher padding has been found. This is a countermeasure
5613 against active attacks where the attacker has to distinguish
5614 between bad padding and a MAC verification error. (CVE-2003-0078)
5616 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5617 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5618 Martin Vuagnoux (EPFL, Ilion)]
5620 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5622 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5623 memory from it's contents. This is done with a counter that will
5624 place alternating values in each byte. This can be used to solve
5625 two issues: 1) the removal of calls to memset() by highly optimizing
5626 compilers, and 2) cleansing with other values than 0, since those can
5627 be read through on certain media, for example a swap space on disk.
5630 *) Bugfix: client side session caching did not work with external caching,
5631 because the session->cipher setting was not restored when reloading
5632 from the external cache. This problem was masked, when
5633 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5634 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5637 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5638 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5639 [Zeev Lieber <zeev-l@yahoo.com>]
5641 *) Undo an undocumented change introduced in 0.9.6e which caused
5642 repeated calls to OpenSSL_add_all_ciphers() and
5643 OpenSSL_add_all_digests() to be ignored, even after calling
5647 *) Change the default configuration reader to deal with last line not
5648 being properly terminated.
5651 *) Change X509_NAME_cmp() so it applies the special rules on handling
5652 DN values that are of type PrintableString, as well as RDNs of type
5653 emailAddress where the value has the type ia5String.
5654 [stefank@valicert.com via Richard Levitte]
5656 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5657 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5658 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5659 the bitwise-OR of the two for use by the majority of applications
5660 wanting this behaviour, and update the docs. The documented
5661 behaviour and actual behaviour were inconsistent and had been
5662 changing anyway, so this is more a bug-fix than a behavioural
5664 [Geoff Thorpe, diagnosed by Nadav Har'El]
5666 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5667 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5670 *) Fix initialization code race conditions in
5671 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5672 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5673 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5674 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5675 ssl2_get_cipher_by_char(),
5676 ssl3_get_cipher_by_char().
5677 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5679 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5680 the cached sessions are flushed, as the remove_cb() might use ex_data
5681 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5682 (see [openssl.org #212]).
5683 [Geoff Thorpe, Lutz Jaenicke]
5685 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5686 length, instead of the encoding length to d2i_ASN1_OBJECT.
5689 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5691 *) [In 0.9.6g-engine release:]
5692 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5693 [Lynn Gazis <lgazis@rainbow.com>]
5695 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5697 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5698 and get fix the header length calculation.
5699 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5700 Alon Kantor <alonk@checkpoint.com> (and others),
5703 *) Use proper error handling instead of 'assertions' in buffer
5704 overflow checks added in 0.9.6e. This prevents DoS (the
5705 assertions could call abort()).
5706 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5708 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5710 *) Add various sanity checks to asn1_get_length() to reject
5711 the ASN1 length bytes if they exceed sizeof(long), will appear
5712 negative or the content length exceeds the length of the
5714 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5716 *) Fix cipher selection routines: ciphers without encryption had no flags
5717 for the cipher strength set and where therefore not handled correctly
5718 by the selection routines (PR #130).
5721 *) Fix EVP_dsa_sha macro.
5725 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5726 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5727 that was added in OpenSSL 0.9.6d.
5729 As the countermeasure turned out to be incompatible with some
5730 broken SSL implementations, the new option is part of SSL_OP_ALL.
5731 SSL_OP_ALL is usually employed when compatibility with weird SSL
5732 implementations is desired (e.g. '-bugs' option to 's_client' and
5733 's_server'), so the new option is automatically set in many
5737 *) Changes in security patch:
5739 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5740 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5741 Air Force Materiel Command, USAF, under agreement number
5744 *) Add various sanity checks to asn1_get_length() to reject
5745 the ASN1 length bytes if they exceed sizeof(long), will appear
5746 negative or the content length exceeds the length of the
5747 supplied buffer. (CVE-2002-0659)
5748 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5750 *) Assertions for various potential buffer overflows, not known to
5752 [Ben Laurie (CHATS)]
5754 *) Various temporary buffers to hold ASCII versions of integers were
5755 too small for 64 bit platforms. (CVE-2002-0655)
5756 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5758 *) Remote buffer overflow in SSL3 protocol - an attacker could
5759 supply an oversized session ID to a client. (CVE-2002-0656)
5760 [Ben Laurie (CHATS)]
5762 *) Remote buffer overflow in SSL2 protocol - an attacker could
5763 supply an oversized client master key. (CVE-2002-0656)
5764 [Ben Laurie (CHATS)]
5766 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5768 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5769 encoded as NULL) with id-dsa-with-sha1.
5770 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5772 *) Check various X509_...() return values in apps/req.c.
5773 [Nils Larsch <nla@trustcenter.de>]
5775 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5776 an end-of-file condition would erronously be flagged, when the CRLF
5777 was just at the end of a processed block. The bug was discovered when
5778 processing data through a buffering memory BIO handing the data to a
5779 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5780 <ptsekov@syntrex.com> and Nedelcho Stanev.
5783 *) Implement a countermeasure against a vulnerability recently found
5784 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5785 before application data chunks to avoid the use of known IVs
5786 with data potentially chosen by the attacker.
5789 *) Fix length checks in ssl3_get_client_hello().
5792 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5793 to prevent ssl3_read_internal() from incorrectly assuming that
5794 ssl3_read_bytes() found application data while handshake
5795 processing was enabled when in fact s->s3->in_read_app_data was
5796 merely automatically cleared during the initial handshake.
5797 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5799 *) Fix object definitions for Private and Enterprise: they were not
5800 recognized in their shortname (=lowercase) representation. Extend
5801 obj_dat.pl to issue an error when using undefined keywords instead
5802 of silently ignoring the problem (Svenning Sorensen
5803 <sss@sss.dnsalias.net>).
5806 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5807 generators, i.e. generators other than 2 and 5. (Previously, the
5808 code did not properly initialise the 'add' and 'rem' values to
5809 BN_generate_prime().)
5811 In the new general case, we do not insist that 'generator' is
5812 actually a primitive root: This requirement is rather pointless;
5813 a generator of the order-q subgroup is just as good, if not
5817 *) Map new X509 verification errors to alerts. Discovered and submitted by
5818 Tom Wu <tom@arcot.com>.
5821 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5822 returning non-zero before the data has been completely received
5823 when using non-blocking I/O.
5824 [Bodo Moeller; problem pointed out by John Hughes]
5826 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5827 [Ben Laurie, Lutz Jaenicke]
5829 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5830 Yoram Zahavi <YoramZ@gilian.com>).
5833 *) Add information about CygWin 1.3 and on, and preserve proper
5834 configuration for the versions before that.
5835 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5837 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5838 check whether we deal with a copy of a session and do not delete from
5839 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5840 <izhar@checkpoint.com>.
5843 *) Do not store session data into the internal session cache, if it
5844 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5845 flag is set). Proposed by Aslam <aslam@funk.com>.
5848 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5852 *) [In 0.9.6d-engine release:]
5853 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5854 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5856 *) Add the configuration target linux-s390x.
5857 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5859 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5860 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5861 variable as an indication that a ClientHello message has been
5862 received. As the flag value will be lost between multiple
5863 invocations of ssl3_accept when using non-blocking I/O, the
5864 function may not be aware that a handshake has actually taken
5865 place, thus preventing a new session from being added to the
5868 To avoid this problem, we now set s->new_session to 2 instead of
5869 using a local variable.
5870 [Lutz Jaenicke, Bodo Moeller]
5872 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5873 if the SSL_R_LENGTH_MISMATCH error is detected.
5874 [Geoff Thorpe, Bodo Moeller]
5876 *) New 'shared_ldflag' column in Configure platform table.
5879 *) Fix EVP_CIPHER_mode macro.
5880 ["Dan S. Camper" <dan@bti.net>]
5882 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5883 type, we must throw them away by setting rr->length to 0.
5884 [D P Chang <dpc@qualys.com>]
5886 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5888 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5889 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5890 worked incorrectly for those cases where range = 10..._2 and
5891 3*range is two bits longer than range.)
5894 *) Only add signing time to PKCS7 structures if it is not already
5898 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5899 OBJ_ld_ce should be OBJ_id_ce.
5900 Also some ip-pda OIDs in crypto/objects/objects.txt were
5901 incorrect (cf. RFC 3039).
5902 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5904 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5905 returns early because it has nothing to do.
5906 [Andy Schneider <andy.schneider@bjss.co.uk>]
5908 *) [In 0.9.6c-engine release:]
5909 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5910 [Andy Schneider <andy.schneider@bjss.co.uk>]
5912 *) [In 0.9.6c-engine release:]
5913 Add support for Cryptographic Appliance's keyserver technology.
5914 (Use engine 'keyclient')
5915 [Cryptographic Appliances and Geoff Thorpe]
5917 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5918 is called via tools/c89.sh because arguments have to be
5919 rearranged (all '-L' options must appear before the first object
5921 [Richard Shapiro <rshapiro@abinitio.com>]
5923 *) [In 0.9.6c-engine release:]
5924 Add support for Broadcom crypto accelerator cards, backported
5926 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5928 *) [In 0.9.6c-engine release:]
5929 Add support for SureWare crypto accelerator cards from
5930 Baltimore Technologies. (Use engine 'sureware')
5931 [Baltimore Technologies and Mark Cox]
5933 *) [In 0.9.6c-engine release:]
5934 Add support for crypto accelerator cards from Accelerated
5935 Encryption Processing, www.aep.ie. (Use engine 'aep')
5936 [AEP Inc. and Mark Cox]
5938 *) Add a configuration entry for gcc on UnixWare.
5939 [Gary Benson <gbenson@redhat.com>]
5941 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5942 messages are stored in a single piece (fixed-length part and
5943 variable-length part combined) and fix various bugs found on the way.
5946 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5947 instead. BIO_gethostbyname() does not know what timeouts are
5948 appropriate, so entries would stay in cache even when they have
5950 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5952 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5953 faced with a pathologically small ClientHello fragment that does
5954 not contain client_version: Instead of aborting with an error,
5955 simply choose the highest available protocol version (i.e.,
5956 TLS 1.0 unless it is disabled). In practice, ClientHello
5957 messages are never sent like this, but this change gives us
5958 strictly correct behaviour at least for TLS.
5961 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5962 never resets s->method to s->ctx->method when called from within
5963 one of the SSL handshake functions.
5964 [Bodo Moeller; problem pointed out by Niko Baric]
5966 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5967 (sent using the client's version number) if client_version is
5968 smaller than the protocol version in use. Also change
5969 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5970 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5971 the client will at least see that alert.
5974 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5978 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5979 client receives HelloRequest while in a handshake.
5980 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5982 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5983 should end in 'break', not 'goto end' which circuments various
5984 cleanups done in state SSL_ST_OK. But session related stuff
5985 must be disabled for SSL_ST_OK in the case that we just sent a
5988 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5989 before just sending a HelloRequest.
5990 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5992 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5993 reveal whether illegal block cipher padding was found or a MAC
5994 verification error occured. (Neither SSLerr() codes nor alerts
5995 are directly visible to potential attackers, but the information
5996 may leak via logfiles.)
5998 Similar changes are not required for the SSL 2.0 implementation
5999 because the number of padding bytes is sent in clear for SSL 2.0,
6000 and the extra bytes are just ignored. However ssl/s2_pkt.c
6001 failed to verify that the purported number of padding bytes is in
6005 *) Add OpenUNIX-8 support including shared libraries
6006 (Boyd Lynn Gerber <gerberb@zenez.com>).
6009 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6010 'wristwatch attack' using huge encoding parameters (cf.
6011 James H. Manger's CRYPTO 2001 paper). Note that the
6012 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6013 encoding parameters and hence was not vulnerable.
6016 *) BN_sqr() bug fix.
6017 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6019 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6020 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6021 followed by modular reduction.
6022 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6024 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6025 equivalent based on BN_pseudo_rand() instead of BN_rand().
6028 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6029 This function was broken, as the check for a new client hello message
6030 to handle SGC did not allow these large messages.
6031 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6034 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6037 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6038 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6041 *) Rework the configuration and shared library support for Tru64 Unix.
6042 The configuration part makes use of modern compiler features and
6043 still retains old compiler behavior for those that run older versions
6044 of the OS. The shared library support part includes a variant that
6045 uses the RPATH feature, and is available through the special
6046 configuration target "alpha-cc-rpath", which will never be selected
6048 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6050 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6051 with the same message size as in ssl3_get_certificate_request().
6052 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6053 messages might inadvertently be reject as too long.
6054 [Petr Lampa <lampa@fee.vutbr.cz>]
6056 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6059 *) Modified SSL library such that the verify_callback that has been set
6060 specificly for an SSL object with SSL_set_verify() is actually being
6061 used. Before the change, a verify_callback set with this function was
6062 ignored and the verify_callback() set in the SSL_CTX at the time of
6063 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6064 to allow the necessary settings.
6067 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6068 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6069 done automatically (in contradiction to the requirements of the C
6070 standard). This made problems when used from OpenSSH.
6073 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6074 dh->length and always used
6076 BN_rand_range(priv_key, dh->p).
6078 BN_rand_range() is not necessary for Diffie-Hellman, and this
6079 specific range makes Diffie-Hellman unnecessarily inefficient if
6080 dh->length (recommended exponent length) is much smaller than the
6081 length of dh->p. We could use BN_rand_range() if the order of
6082 the subgroup was stored in the DH structure, but we only have
6087 BN_rand(priv_key, l, ...)
6089 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6095 RSA_eay_public_encrypt
6096 RSA_eay_private_decrypt
6097 RSA_eay_private_encrypt (signing)
6098 RSA_eay_public_decrypt (signature verification)
6100 (default implementations for RSA_public_encrypt,
6101 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6102 always reject numbers >= n.
6105 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6106 to synchronize access to 'locking_thread'. This is necessary on
6107 systems where access to 'locking_thread' (an 'unsigned long'
6108 variable) is not atomic.
6111 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6112 *before* setting the 'crypto_lock_rand' flag. The previous code had
6113 a race condition if 0 is a valid thread ID.
6114 [Travis Vitek <vitek@roguewave.com>]
6116 *) Add support for shared libraries under Irix.
6117 [Albert Chin-A-Young <china@thewrittenword.com>]
6119 *) Add configuration option to build on Linux on both big-endian and
6121 [Ralf Baechle <ralf@uni-koblenz.de>]
6123 *) Add the possibility to create shared libraries on HP-UX.
6126 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6128 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6129 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6130 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6131 PRNG state recovery was possible based on the output of
6132 one PRNG request appropriately sized to gain knowledge on
6133 'md' followed by enough consecutive 1-byte PRNG requests
6134 to traverse all of 'state'.
6136 1. When updating 'md_local' (the current thread's copy of 'md')
6137 during PRNG output generation, hash all of the previous
6138 'md_local' value, not just the half used for PRNG output.
6140 2. Make the number of bytes from 'state' included into the hash
6141 independent from the number of PRNG bytes requested.
6143 The first measure alone would be sufficient to avoid
6144 Markku-Juhani's attack. (Actually it had never occurred
6145 to me that the half of 'md_local' used for chaining was the
6146 half from which PRNG output bytes were taken -- I had always
6147 assumed that the secret half would be used.) The second
6148 measure makes sure that additional data from 'state' is never
6149 mixed into 'md_local' in small portions; this heuristically
6150 further strengthens the PRNG.
6153 *) Fix crypto/bn/asm/mips3.s.
6156 *) When only the key is given to "enc", the IV is undefined. Print out
6157 an error message in this case.
6160 *) Handle special case when X509_NAME is empty in X509 printing routines.
6163 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6164 positive and less than q.
6167 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6168 used: it isn't thread safe and the add_lock_callback should handle
6170 [Paul Rose <Paul.Rose@bridge.com>]
6172 *) Verify that incoming data obeys the block size in
6173 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6177 [Ulf Möller, Bodo Möller]
6179 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6180 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6181 when fixing the server behaviour for backwards-compatible 'client
6182 hello' messages. (Note that the attack is impractical against
6183 SSL 3.0 and TLS 1.0 anyway because length and version checking
6184 means that the probability of guessing a valid ciphertext is
6185 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6188 Before 0.9.5, the countermeasure (hide the error by generating a
6189 random 'decryption result') did not work properly because
6190 ERR_clear_error() was missing, meaning that SSL_get_error() would
6191 detect the supposedly ignored error.
6193 Both problems are now fixed.
6196 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6197 (previously it was 1024).
6200 *) Fix for compatibility mode trust settings: ignore trust settings
6201 unless some valid trust or reject settings are present.
6204 *) Fix for blowfish EVP: its a variable length cipher.
6207 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6208 parameters in DSA public key structures and return an error in the
6209 DSA routines if parameters are absent.
6212 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6213 in the current directory if neither $RANDFILE nor $HOME was set.
6214 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6215 caused some confusion to Windows users who haven't defined $HOME.
6216 Thus RAND_file_name() is changed again: e_os.h can define a
6217 DEFAULT_HOME, which will be used if $HOME is not set.
6218 For Windows, we use "C:"; on other platforms, we still require
6219 environment variables.
6221 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6222 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6223 having multiple threads call RAND_poll() concurrently.
6226 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6227 combination of a flag and a thread ID variable.
6228 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6229 flag), *other* threads can enter ssleay_add_bytes without obeying
6230 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6231 that they do not hold after the first thread unsets add_do_not_lock).
6234 *) Change bctest again: '-x' expressions are not available in all
6238 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6240 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6241 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6243 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6244 the default extension for executables, if any. Also, make the perl
6245 scripts that use symlink() to test if it really exists and use "cp"
6246 if it doesn't. All this made OpenSSL compilable and installable in
6250 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6251 If SEQUENCE is length is indefinite just set c->slen to the total
6252 amount of data available.
6253 [Steve Henson, reported by shige@FreeBSD.org]
6254 [This change does not apply to 0.9.7.]
6256 *) Change bctest to avoid here-documents inside command substitution
6257 (workaround for FreeBSD /bin/sh bug).
6258 For compatibility with Ultrix, avoid shell functions (introduced
6259 in the bctest version that searches along $PATH).
6262 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6263 with des_encrypt() defined on some operating systems, like Solaris
6267 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6268 On the Importance of Eliminating Errors in Cryptographic
6269 Computations, J. Cryptology 14 (2001) 2, 101-119,
6270 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6273 *) MIPS assembler BIGNUM division bug fix.
6276 *) Disabled incorrect Alpha assembler code.
6279 *) Fix PKCS#7 decode routines so they correctly update the length
6280 after reading an EOC for the EXPLICIT tag.
6282 [This change does not apply to 0.9.7.]
6284 *) Fix bug in PKCS#12 key generation routines. This was triggered
6285 if a 3DES key was generated with a 0 initial byte. Include
6286 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6287 (but broken) behaviour.
6290 *) Enhance bctest to search for a working bc along $PATH and print
6292 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6294 *) Fix memory leaks in err.c: free err_data string if necessary;
6295 don't write to the wrong index in ERR_set_error_data.
6298 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6302 *) Replace rdtsc with _emit statements for VC++ version 5.
6303 [Jeremy Cooper <jeremy@baymoo.org>]
6305 *) Make it possible to reuse SSLv2 sessions.
6308 *) In copy_email() check for >= 0 as a return value for
6309 X509_NAME_get_index_by_NID() since 0 is a valid index.
6310 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6312 *) Avoid coredump with unsupported or invalid public keys by checking if
6313 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6314 PKCS7_verify() fails with non detached data.
6317 *) Don't use getenv in library functions when run as setuid/setgid.
6318 New function OPENSSL_issetugid().
6321 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6322 due to incorrect handling of multi-threading:
6324 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6326 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6328 3. Count how many times MemCheck_off() has been called so that
6329 nested use can be treated correctly. This also avoids
6330 inband-signalling in the previous code (which relied on the
6331 assumption that thread ID 0 is impossible).
6334 *) Add "-rand" option also to s_client and s_server.
6337 *) Fix CPU detection on Irix 6.x.
6338 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6339 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6341 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6344 [This change does not apply to 0.9.7.]
6346 *) Use the cached encoding of an X509_NAME structure rather than
6347 copying it. This is apparently the reason for the libsafe "errors"
6348 but the code is actually correct.
6351 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6352 Bleichenbacher's DSA attack.
6353 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6354 to be set and top=0 forces the highest bit to be set; top=-1 is new
6355 and leaves the highest bit random.
6356 [Ulf Moeller, Bodo Moeller]
6358 *) In the NCONF_...-based implementations for CONF_... queries
6359 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6360 a temporary CONF structure with the data component set to NULL
6361 (which gives segmentation faults in lh_retrieve).
6362 Instead, use NULL for the CONF pointer in CONF_get_string and
6363 CONF_get_number (which may use environment variables) and directly
6364 return NULL from CONF_get_section.
6367 *) Fix potential buffer overrun for EBCDIC.
6370 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6371 keyUsage if basicConstraints absent for a CA.
6374 *) Make SMIME_write_PKCS7() write mail header values with a format that
6375 is more generally accepted (no spaces before the semicolon), since
6376 some programs can't parse those values properly otherwise. Also make
6377 sure BIO's that break lines after each write do not create invalid
6381 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6382 macros previously used would not encode an empty SEQUENCE OF
6383 and break the signature.
6385 [This change does not apply to 0.9.7.]
6387 *) Zero the premaster secret after deriving the master secret in
6391 *) Add some EVP_add_digest_alias registrations (as found in
6392 OpenSSL_add_all_digests()) to SSL_library_init()
6393 aka OpenSSL_add_ssl_algorithms(). This provides improved
6394 compatibility with peers using X.509 certificates
6395 with unconventional AlgorithmIdentifier OIDs.
6398 *) Fix for Irix with NO_ASM.
6399 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6401 *) ./config script fixes.
6402 [Ulf Moeller, Richard Levitte]
6404 *) Fix 'openssl passwd -1'.
6407 *) Change PKCS12_key_gen_asc() so it can cope with non null
6408 terminated strings whose length is passed in the passlen
6409 parameter, for example from PEM callbacks. This was done
6410 by adding an extra length parameter to asc2uni().
6411 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6413 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6414 call failed, free the DSA structure.
6417 *) Fix to uni2asc() to cope with zero length Unicode strings.
6418 These are present in some PKCS#12 files.
6421 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6422 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6423 when writing a 32767 byte record.
6424 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6426 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6427 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6429 (RSA objects have a reference count access to which is protected
6430 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6431 so they are meant to be shared between threads.)
6432 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6433 "Reddie, Steven" <Steven.Reddie@ca.com>]
6435 *) Fix a deadlock in CRYPTO_mem_leaks().
6438 *) Use better test patterns in bntest.
6441 *) rand_win.c fix for Borland C.
6444 *) BN_rshift bugfix for n == 0.
6447 *) Add a 'bctest' script that checks for some known 'bc' bugs
6448 so that 'make test' does not abort just because 'bc' is broken.
6451 *) Store verify_result within SSL_SESSION also for client side to
6452 avoid potential security hole. (Re-used sessions on the client side
6453 always resulted in verify_result==X509_V_OK, not using the original
6454 result of the server certificate verification.)
6457 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6458 SSL3_RT_APPLICATION_DATA, return 0.
6459 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6463 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6464 releases, have been re-implemented by renaming the previous
6465 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6466 and ssl3_read_internal, respectively, and adding 'peek' parameters
6467 to them. The new ssl[23]_{read,peek} functions are calls to
6468 ssl[23]_read_internal with the 'peek' flag set appropriately.
6469 A 'peek' parameter has also been added to ssl3_read_bytes, which
6470 does the actual work for ssl3_read_internal.
6473 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6474 the method-specific "init()" handler. Also clean up ex_data after
6475 calling the method-specific "finish()" handler. Previously, this was
6476 happening the other way round.
6479 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6480 The previous value, 12, was not always sufficient for BN_mod_exp().
6483 *) Make sure that shared libraries get the internal name engine with
6484 the full version number and not just 0. This should mark the
6485 shared libraries as not backward compatible. Of course, this should
6486 be changed again when we can guarantee backward binary compatibility.
6489 *) Fix typo in get_cert_by_subject() in by_dir.c
6490 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6492 *) Rework the system to generate shared libraries:
6494 - Make note of the expected extension for the shared libraries and
6495 if there is a need for symbolic links from for example libcrypto.so.0
6496 to libcrypto.so.0.9.7. There is extended info in Configure for
6499 - Make as few rebuilds of the shared libraries as possible.
6501 - Still avoid linking the OpenSSL programs with the shared libraries.
6503 - When installing, install the shared libraries separately from the
6507 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6509 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6510 and not in SSL_clear because the latter is also used by the
6511 accept/connect functions; previously, the settings made by
6512 SSL_set_read_ahead would be lost during the handshake.
6513 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6515 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6516 Previously, it would create entries for disableed algorithms no
6520 *) Added several new manual pages for SSL_* function.
6523 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6525 *) In ssl23_get_client_hello, generate an error message when faced
6526 with an initial SSL 3.0/TLS record that is too small to contain the
6527 first two bytes of the ClientHello message, i.e. client_version.
6528 (Note that this is a pathologic case that probably has never happened
6529 in real life.) The previous approach was to use the version number
6530 from the record header as a substitute; but our protocol choice
6531 should not depend on that one because it is not authenticated
6532 by the Finished messages.
6535 *) More robust randomness gathering functions for Windows.
6536 [Jeffrey Altman <jaltman@columbia.edu>]
6538 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6539 not set then we don't setup the error code for issuer check errors
6540 to avoid possibly overwriting other errors which the callback does
6541 handle. If an application does set the flag then we assume it knows
6542 what it is doing and can handle the new informational codes
6546 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6547 a general "ANY" type, as such it should be able to decode anything
6548 including tagged types. However it didn't check the class so it would
6549 wrongly interpret tagged types in the same way as their universal
6550 counterpart and unknown types were just rejected. Changed so that the
6551 tagged and unknown types are handled in the same way as a SEQUENCE:
6552 that is the encoding is stored intact. There is also a new type
6553 "V_ASN1_OTHER" which is used when the class is not universal, in this
6554 case we have no idea what the actual type is so we just lump them all
6558 *) On VMS, stdout may very well lead to a file that is written to
6559 in a record-oriented fashion. That means that every write() will
6560 write a separate record, which will be read separately by the
6561 programs trying to read from it. This can be very confusing.
6563 The solution is to put a BIO filter in the way that will buffer
6564 text until a linefeed is reached, and then write everything a
6565 line at a time, so every record written will be an actual line,
6566 not chunks of lines and not (usually doesn't happen, but I've
6567 seen it once) several lines in one record. BIO_f_linebuffer() is
6570 Currently, it's a VMS-only method, because that's where it has
6571 been tested well enough.
6574 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6575 it can return incorrect results.
6576 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6577 but it was in 0.9.6-beta[12].)
6580 *) Disable the check for content being present when verifying detached
6581 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6582 include zero length content when signing messages.
6585 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6586 BIO_ctrl (for BIO pairs).
6589 *) Add DSO method for VMS.
6592 *) Bug fix: Montgomery multiplication could produce results with the
6596 *) Add RPM specification openssl.spec and modify it to build three
6597 packages. The default package contains applications, application
6598 documentation and run-time libraries. The devel package contains
6599 include files, static libraries and function documentation. The
6600 doc package contains the contents of the doc directory. The original
6601 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6604 *) Add a large number of documentation files for many SSL routines.
6605 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6607 *) Add a configuration entry for Sony News 4.
6608 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6610 *) Don't set the two most significant bits to one when generating a
6611 random number < q in the DSA library.
6614 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6615 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6616 the underlying transport is blocking) if a handshake took place.
6617 (The default behaviour is needed by applications such as s_client
6618 and s_server that use select() to determine when to use SSL_read;
6619 but for applications that know in advance when to expect data, it
6620 just makes things more complicated.)
6623 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6627 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6628 work better on such systems.
6629 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6631 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6632 Update PKCS12_parse() so it copies the friendlyName and the
6633 keyid to the certificates aux info.
6636 *) Fix bug in PKCS7_verify() which caused an infinite loop
6637 if there was more than one signature.
6638 [Sven Uszpelkat <su@celocom.de>]
6640 *) Major change in util/mkdef.pl to include extra information
6641 about each symbol, as well as presentig variables as well
6642 as functions. This change means that there's n more need
6643 to rebuild the .num files when some algorithms are excluded.
6646 *) Allow the verify time to be set by an application,
6647 rather than always using the current time.
6650 *) Phase 2 verify code reorganisation. The certificate
6651 verify code now looks up an issuer certificate by a
6652 number of criteria: subject name, authority key id
6653 and key usage. It also verifies self signed certificates
6654 by the same criteria. The main comparison function is
6655 X509_check_issued() which performs these checks.
6657 Lot of changes were necessary in order to support this
6658 without completely rewriting the lookup code.
6660 Authority and subject key identifier are now cached.
6662 The LHASH 'certs' is X509_STORE has now been replaced
6663 by a STACK_OF(X509_OBJECT). This is mainly because an
6664 LHASH can't store or retrieve multiple objects with
6665 the same hash value.
6667 As a result various functions (which were all internal
6668 use only) have changed to handle the new X509_STORE
6669 structure. This will break anything that messed round
6670 with X509_STORE internally.
6672 The functions X509_STORE_add_cert() now checks for an
6673 exact match, rather than just subject name.
6675 The X509_STORE API doesn't directly support the retrieval
6676 of multiple certificates matching a given criteria, however
6677 this can be worked round by performing a lookup first
6678 (which will fill the cache with candidate certificates)
6679 and then examining the cache for matches. This is probably
6680 the best we can do without throwing out X509_LOOKUP
6681 entirely (maybe later...).
6683 The X509_VERIFY_CTX structure has been enhanced considerably.
6685 All certificate lookup operations now go via a get_issuer()
6686 callback. Although this currently uses an X509_STORE it
6687 can be replaced by custom lookups. This is a simple way
6688 to bypass the X509_STORE hackery necessary to make this
6689 work and makes it possible to use more efficient techniques
6690 in future. A very simple version which uses a simple
6691 STACK for its trusted certificate store is also provided
6692 using X509_STORE_CTX_trusted_stack().
6694 The verify_cb() and verify() callbacks now have equivalents
6695 in the X509_STORE_CTX structure.
6697 X509_STORE_CTX also has a 'flags' field which can be used
6698 to customise the verify behaviour.
6701 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6702 excludes S/MIME capabilities.
6705 *) When a certificate request is read in keep a copy of the
6706 original encoding of the signed data and use it when outputing
6707 again. Signatures then use the original encoding rather than
6708 a decoded, encoded version which may cause problems if the
6709 request is improperly encoded.
6712 *) For consistency with other BIO_puts implementations, call
6713 buffer_write(b, ...) directly in buffer_puts instead of calling
6716 In BIO_puts, increment b->num_write as in BIO_write.
6717 [Peter.Sylvester@EdelWeb.fr]
6719 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6720 BN_zero, we may not return a BIGNUM with an array consisting of
6724 *) Avoid calling abort() from within the library when problems are
6725 detected, except if preprocessor symbols have been defined
6726 (such as REF_CHECK, BN_DEBUG etc.).
6729 *) New openssl application 'rsautl'. This utility can be
6730 used for low level RSA operations. DER public key
6731 BIO/fp routines also added.
6734 *) New Configure entry and patches for compiling on QNX 4.
6735 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6737 *) A demo state-machine implementation was sponsored by
6738 Nuron (http://www.nuron.com/) and is now available in
6739 demos/state_machine.
6742 *) New options added to the 'dgst' utility for signature
6743 generation and verification.
6746 *) Unrecognized PKCS#7 content types are now handled via a
6747 catch all ASN1_TYPE structure. This allows unsupported
6748 types to be stored as a "blob" and an application can
6749 encode and decode it manually.
6752 *) Fix various signed/unsigned issues to make a_strex.c
6754 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6756 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6757 length if passed a buffer. ASN1_INTEGER_to_BN failed
6758 if passed a NULL BN and its argument was negative.
6759 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6761 *) Modification to PKCS#7 encoding routines to output definite
6762 length encoding. Since currently the whole structures are in
6763 memory there's not real point in using indefinite length
6764 constructed encoding. However if OpenSSL is compiled with
6765 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6768 *) Added BIO_vprintf() and BIO_vsnprintf().
6771 *) Added more prefixes to parse for in the the strings written
6772 through a logging bio, to cover all the levels that are available
6773 through syslog. The prefixes are now:
6775 PANIC, EMERG, EMR => LOG_EMERG
6776 ALERT, ALR => LOG_ALERT
6777 CRIT, CRI => LOG_CRIT
6778 ERROR, ERR => LOG_ERR
6779 WARNING, WARN, WAR => LOG_WARNING
6780 NOTICE, NOTE, NOT => LOG_NOTICE
6781 INFO, INF => LOG_INFO
6782 DEBUG, DBG => LOG_DEBUG
6784 and as before, if none of those prefixes are present at the
6785 beginning of the string, LOG_ERR is chosen.
6787 On Win32, the LOG_* levels are mapped according to this:
6789 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6790 LOG_WARNING => EVENTLOG_WARNING_TYPE
6791 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6795 *) Made it possible to reconfigure with just the configuration
6796 argument "reconf" or "reconfigure". The command line arguments
6797 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6798 and are retrieved from there when reconfiguring.
6802 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6804 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6807 *) The obj_dat.pl script was messing up the sorting of object
6808 names. The reason was that it compared the quoted version
6809 of strings as a result "OCSP" > "OCSP Signing" because
6810 " > SPACE. Changed script to store unquoted versions of
6811 names and add quotes on output. It was also omitting some
6812 names from the lookup table if they were given a default
6813 value (that is if SN is missing it is given the same
6814 value as LN and vice versa), these are now added on the
6815 grounds that if an object has a name we should be able to
6816 look it up. Finally added warning output when duplicate
6817 short or long names are found.
6820 *) Changes needed for Tandem NSK.
6821 [Scott Uroff <scott@xypro.com>]
6823 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6824 RSA_padding_check_SSLv23(), special padding was never detected
6825 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6826 version rollback attacks was not effective.
6828 In s23_clnt.c, don't use special rollback-attack detection padding
6829 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6830 client; similarly, in s23_srvr.c, don't do the rollback check if
6831 SSL 2.0 is the only protocol enabled in the server.
6834 *) Make it possible to get hexdumps of unprintable data with 'openssl
6835 asn1parse'. By implication, the functions ASN1_parse_dump() and
6836 BIO_dump_indent() are added.
6839 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6840 these print out strings and name structures based on various
6841 flags including RFC2253 support and proper handling of
6842 multibyte characters. Added options to the 'x509' utility
6843 to allow the various flags to be set.
6846 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6847 Also change the functions X509_cmp_current_time() and
6848 X509_gmtime_adj() work with an ASN1_TIME structure,
6849 this will enable certificates using GeneralizedTime in validity
6850 dates to be checked.
6853 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6854 negative public key encodings) on by default,
6855 NO_NEG_PUBKEY_BUG can be set to disable it.
6858 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6859 content octets. An i2c_ASN1_OBJECT is unnecessary because
6860 the encoding can be trivially obtained from the structure.
6863 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6864 not read locks (CRYPTO_r_[un]lock).
6867 *) A first attempt at creating official support for shared
6868 libraries through configuration. I've kept it so the
6869 default is static libraries only, and the OpenSSL programs
6870 are always statically linked for now, but there are
6871 preparations for dynamic linking in place.
6872 This has been tested on Linux and Tru64.
6875 *) Randomness polling function for Win9x, as described in:
6876 Peter Gutmann, Software Generation of Practically Strong
6880 *) Fix so PRNG is seeded in req if using an already existing
6884 *) New options to smime application. -inform and -outform
6885 allow alternative formats for the S/MIME message including
6886 PEM and DER. The -content option allows the content to be
6887 specified separately. This should allow things like Netscape
6888 form signing output easier to verify.
6891 *) Fix the ASN1 encoding of tags using the 'long form'.
6894 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6895 STRING types. These convert content octets to and from the
6896 underlying type. The actual tag and length octets are
6897 already assumed to have been read in and checked. These
6898 are needed because all other string types have virtually
6899 identical handling apart from the tag. By having versions
6900 of the ASN1 functions that just operate on content octets
6901 IMPLICIT tagging can be handled properly. It also allows
6902 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6903 and ASN1_INTEGER are identical apart from the tag.
6906 *) Change the handling of OID objects as follows:
6908 - New object identifiers are inserted in objects.txt, following
6909 the syntax given in objects.README.
6910 - objects.pl is used to process obj_mac.num and create a new
6912 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6915 This is currently kind of a hack, and the perl code in objects.pl
6916 isn't very elegant, but it works as I intended. The simplest way
6917 to check that it worked correctly is to look in obj_dat.h and
6918 check the array nid_objs and make sure the objects haven't moved
6919 around (this is important!). Additions are OK, as well as
6920 consistent name changes.
6923 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6926 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6927 The given file adds to whatever has already been seeded into the
6928 random pool through the RANDFILE configuration file option or
6929 environment variable, or the default random state file.
6932 *) mkstack.pl now sorts each macro group into lexical order.
6933 Previously the output order depended on the order the files
6934 appeared in the directory, resulting in needless rewriting
6938 *) Patches to make OpenSSL compile under Win32 again. Mostly
6939 work arounds for the VC++ problem that it treats func() as
6940 func(void). Also stripped out the parts of mkdef.pl that
6941 added extra typesafe functions: these no longer exist.
6944 *) Reorganisation of the stack code. The macros are now all
6945 collected in safestack.h . Each macro is defined in terms of
6946 a "stack macro" of the form SKM_<name>(type, a, b). The
6947 DEBUG_SAFESTACK is now handled in terms of function casts,
6948 this has the advantage of retaining type safety without the
6949 use of additional functions. If DEBUG_SAFESTACK is not defined
6950 then the non typesafe macros are used instead. Also modified the
6951 mkstack.pl script to handle the new form. Needs testing to see
6952 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6953 the default if no major problems. Similar behaviour for ASN1_SET_OF
6954 and PKCS12_STACK_OF.
6957 *) When some versions of IIS use the 'NET' form of private key the
6958 key derivation algorithm is different. Normally MD5(password) is
6959 used as a 128 bit RC4 key. In the modified case
6960 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6961 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6962 as the old Netscape_RSA functions except they have an additional
6963 'sgckey' parameter which uses the modified algorithm. Also added
6964 an -sgckey command line option to the rsa utility. Thanks to
6965 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6966 algorithm to openssl-dev.
6969 *) The evp_local.h macros were using 'c.##kname' which resulted in
6970 invalid expansion on some systems (SCO 5.0.5 for example).
6971 Corrected to 'c.kname'.
6972 [Phillip Porch <root@theporch.com>]
6974 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6975 a STACK of email addresses from a certificate or request, these look
6976 in the subject name and the subject alternative name extensions and
6977 omit any duplicate addresses.
6980 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6981 This makes DSA verification about 2 % faster.
6984 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6985 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6986 plus overhead for 1024 bit moduli).
6987 This makes exponentiations about 0.5 % faster for 1024 bit
6988 exponents (as measured by "openssl speed rsa2048").
6991 *) Rename memory handling macros to avoid conflicts with other
6993 Malloc => OPENSSL_malloc
6994 Malloc_locked => OPENSSL_malloc_locked
6995 Realloc => OPENSSL_realloc
6996 Free => OPENSSL_free
6999 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7000 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7003 *) CygWin32 support.
7004 [John Jarvie <jjarvie@newsguy.com>]
7006 *) The type-safe stack code has been rejigged. It is now only compiled
7007 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7008 by default all type-specific stack functions are "#define"d back to
7009 standard stack functions. This results in more streamlined output
7010 but retains the type-safety checking possibilities of the original
7014 *) The STACK code has been cleaned up, and certain type declarations
7015 that didn't make a lot of sense have been brought in line. This has
7016 also involved a cleanup of sorts in safestack.h to more correctly
7017 map type-safe stack functions onto their plain stack counterparts.
7018 This work has also resulted in a variety of "const"ifications of
7019 lots of the code, especially "_cmp" operations which should normally
7020 be prototyped with "const" parameters anyway.
7023 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7024 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7025 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7026 where all of 'md' is used each time the PRNG is used, but 'state'
7027 is used only indexed by a cyclic counter. As entropy may not be
7028 well distributed from the beginning, 'md' is important as a
7029 chaining variable. However, the output function chains only half
7030 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7031 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7032 in all of 'state' being rewritten, with the new values depending
7033 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7036 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7037 the handshake is continued after ssl_verify_cert_chain();
7038 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7039 can lead to 'unexplainable' connection aborts later.
7040 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7042 *) Major EVP API cipher revision.
7043 Add hooks for extra EVP features. This allows various cipher
7044 parameters to be set in the EVP interface. Support added for variable
7045 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7046 setting of RC2 and RC5 parameters.
7048 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7051 Remove lots of duplicated code from the EVP library. For example *every*
7052 cipher init() function handles the 'iv' in the same way according to the
7053 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7054 for CFB and OFB modes they zero ctx->num.
7056 New functionality allows removal of S/MIME code RC2 hack.
7058 Most of the routines have the same form and so can be declared in terms
7061 By shifting this to the top level EVP_CipherInit() it can be removed from
7062 all individual ciphers. If the cipher wants to handle IVs or keys
7063 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7066 Change lots of functions like EVP_EncryptUpdate() to now return a
7067 value: although software versions of the algorithms cannot fail
7068 any installed hardware versions can.
7071 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7072 this option is set, tolerate broken clients that send the negotiated
7073 protocol version number instead of the requested protocol version
7077 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7078 i.e. non-zero for export ciphersuites, zero otherwise.
7079 Previous versions had this flag inverted, inconsistent with
7080 rsa_tmp_cb (..._TMP_RSA_CB).
7081 [Bodo Moeller; problem reported by Amit Chopra]
7083 *) Add missing DSA library text string. Work around for some IIS
7084 key files with invalid SEQUENCE encoding.
7087 *) Add a document (doc/standards.txt) that list all kinds of standards
7088 and so on that are implemented in OpenSSL.
7091 *) Enhance c_rehash script. Old version would mishandle certificates
7092 with the same subject name hash and wouldn't handle CRLs at all.
7093 Added -fingerprint option to crl utility, to support new c_rehash
7097 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7100 *) Fix for SSL server purpose checking. Server checking was
7101 rejecting certificates which had extended key usage present
7102 but no ssl client purpose.
7103 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7105 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7106 is a little unclear about how a blank password is handled.
7107 Since the password in encoded as a BMPString with terminating
7108 double NULL a zero length password would end up as just the
7109 double NULL. However no password at all is different and is
7110 handled differently in the PKCS#12 key generation code. NS
7111 treats a blank password as zero length. MSIE treats it as no
7112 password on export: but it will try both on import. We now do
7113 the same: PKCS12_parse() tries zero length and no password if
7114 the password is set to "" or NULL (NULL is now a valid password:
7115 it wasn't before) as does the pkcs12 application.
7118 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7119 perror when PEM_read_bio_X509_REQ fails, the error message must
7120 be obtained from the error queue.
7123 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7124 it in ERR_remove_state if appropriate, and change ERR_get_state
7125 accordingly to avoid race conditions (this is necessary because
7126 thread_hash is no longer constant once set).
7129 *) Bugfix for linux-elf makefile.one.
7132 *) RSA_get_default_method() will now cause a default
7133 RSA_METHOD to be chosen if one doesn't exist already.
7134 Previously this was only set during a call to RSA_new()
7135 or RSA_new_method(NULL) meaning it was possible for
7136 RSA_get_default_method() to return NULL.
7139 *) Added native name translation to the existing DSO code
7140 that will convert (if the flag to do so is set) filenames
7141 that are sufficiently small and have no path information
7142 into a canonical native form. Eg. "blah" converted to
7143 "libblah.so" or "blah.dll" etc.
7146 *) New function ERR_error_string_n(e, buf, len) which is like
7147 ERR_error_string(e, buf), but writes at most 'len' bytes
7148 including the 0 terminator. For ERR_error_string_n, 'buf'
7150 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7152 *) CONF library reworked to become more general. A new CONF
7153 configuration file reader "class" is implemented as well as a
7154 new functions (NCONF_*, for "New CONF") to handle it. The now
7155 old CONF_* functions are still there, but are reimplemented to
7156 work in terms of the new functions. Also, a set of functions
7157 to handle the internal storage of the configuration data is
7158 provided to make it easier to write new configuration file
7159 reader "classes" (I can definitely see something reading a
7160 configuration file in XML format, for example), called _CONF_*,
7161 or "the configuration storage API"...
7163 The new configuration file reading functions are:
7165 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7166 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7168 NCONF_default, NCONF_WIN32
7170 NCONF_dump_fp, NCONF_dump_bio
7172 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7173 NCONF_new creates a new CONF object. This works in the same way
7174 as other interfaces in OpenSSL, like the BIO interface.
7175 NCONF_dump_* dump the internal storage of the configuration file,
7176 which is useful for debugging. All other functions take the same
7177 arguments as the old CONF_* functions wth the exception of the
7178 first that must be a `CONF *' instead of a `LHASH *'.
7180 To make it easer to use the new classes with the old CONF_* functions,
7181 the function CONF_set_default_method is provided.
7184 *) Add '-tls1' option to 'openssl ciphers', which was already
7185 mentioned in the documentation but had not been implemented.
7186 (This option is not yet really useful because even the additional
7187 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7190 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7191 OpenSSL-based applications) load shared libraries and bind to
7192 them in a portable way.
7193 [Geoff Thorpe, with contributions from Richard Levitte]
7195 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7197 *) Make sure _lrotl and _lrotr are only used with MSVC.
7199 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7200 (the default implementation of RAND_status).
7202 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7203 to '-clrext' (= clear extensions), as intended and documented.
7204 [Bodo Moeller; inconsistency pointed out by Michael Attili
7207 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7208 was larger than the MD block size.
7209 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7211 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7212 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7213 using the passed key: if the passed key was a private key the result
7214 of X509_print(), for example, would be to print out all the private key
7218 *) des_quad_cksum() byte order bug fix.
7219 [Ulf Möller, using the problem description in krb4-0.9.7, where
7220 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7222 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7224 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7226 *) For easily testing in shell scripts whether some command
7227 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7228 returns with exit code 0 iff no command of the given name is available.
7229 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7230 the output goes to stdout and nothing is printed to stderr.
7231 Additional arguments are always ignored.
7233 Since for each cipher there is a command of the same name,
7234 the 'no-cipher' compilation switches can be tested this way.
7236 ('openssl no-XXX' is not able to detect pseudo-commands such
7237 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7240 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7243 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7244 is set; it will be thrown away anyway because each handshake creates
7246 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7247 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7248 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7249 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7252 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7253 'Q' and 'R' lose their special meanings (quit/renegotiate).
7254 This is part of what -quiet does; unlike -quiet, -ign_eof
7255 does not suppress any output.
7258 *) Add compatibility options to the purpose and trust code. The
7259 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7260 accepts a certificate or CA, this was the previous behaviour,
7261 with all the associated security issues.
7263 X509_TRUST_COMPAT is the old trust behaviour: only and
7264 automatically trust self signed roots in certificate store. A
7265 new trust setting X509_TRUST_DEFAULT is used to specify that
7266 a purpose has no associated trust setting and it should instead
7267 use the value in the default purpose.
7270 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7271 and fix a memory leak.
7274 *) In util/mkerr.pl (which implements 'make errors'), preserve
7275 reason strings from the previous version of the .c file, as
7276 the default to have only downcase letters (and digits) in
7277 automatically generated reasons codes is not always appropriate.
7280 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7281 using strerror. Previously, ERR_reason_error_string() returned
7282 library names as reason strings for SYSerr; but SYSerr is a special
7283 case where small numbers are errno values, not library numbers.
7286 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7287 converts DSA parameters into DH parameters. (When creating parameters,
7288 DSA_generate_parameters is used.)
7291 *) Include 'length' (recommended exponent length) in C code generated
7292 by 'openssl dhparam -C'.
7295 *) The second argument to set_label in perlasm was already being used
7296 so couldn't be used as a "file scope" flag. Moved to third argument
7300 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7301 instead of RAND_bytes for encryption IVs and salts.
7304 *) Include RAND_status() into RAND_METHOD instead of implementing
7305 it only for md_rand.c Otherwise replacing the PRNG by calling
7306 RAND_set_rand_method would be impossible.
7309 *) Don't let DSA_generate_key() enter an infinite loop if the random
7310 number generation fails.
7313 *) New 'rand' application for creating pseudo-random output.
7316 *) Added configuration support for Linux/IA64
7317 [Rolf Haberrecker <rolf@suse.de>]
7319 *) Assembler module support for Mingw32.
7322 *) Shared library support for HPUX (in shlib/).
7323 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7325 *) Shared library support for Solaris gcc.
7326 [Lutz Behnke <behnke@trustcenter.de>]
7328 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7330 *) PKCS7_encrypt() was adding text MIME headers twice because they
7331 were added manually and by SMIME_crlf_copy().
7334 *) In bntest.c don't call BN_rand with zero bits argument.
7335 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7337 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7338 case was implemented. This caused BN_div_recp() to fail occasionally.
7341 *) Add an optional second argument to the set_label() in the perl
7342 assembly language builder. If this argument exists and is set
7343 to 1 it signals that the assembler should use a symbol whose
7344 scope is the entire file, not just the current function. This
7345 is needed with MASM which uses the format label:: for this scope.
7346 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7348 *) Change the ASN1 types so they are typedefs by default. Before
7349 almost all types were #define'd to ASN1_STRING which was causing
7350 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7354 *) Change names of new functions to the new get1/get0 naming
7355 convention: After 'get1', the caller owns a reference count
7356 and has to call ..._free; 'get0' returns a pointer to some
7357 data structure without incrementing reference counters.
7358 (Some of the existing 'get' functions increment a reference
7359 counter, some don't.)
7360 Similarly, 'set1' and 'add1' functions increase reference
7361 counters or duplicate objects.
7364 *) Allow for the possibility of temp RSA key generation failure:
7365 the code used to assume it always worked and crashed on failure.
7368 *) Fix potential buffer overrun problem in BIO_printf().
7369 [Ulf Möller, using public domain code by Patrick Powell; problem
7370 pointed out by David Sacerdote <das33@cornell.edu>]
7372 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7373 RAND_egd() and RAND_status(). In the command line application,
7374 the EGD socket can be specified like a seed file using RANDFILE
7378 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7379 Some CAs (e.g. Verisign) distribute certificates in this form.
7382 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7383 list to exclude them. This means that no special compilation option
7384 is needed to use anonymous DH: it just needs to be included in the
7388 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7389 EVP_MD_type. The old functionality is available in a new macro called
7390 EVP_MD_md(). Change code that uses it and update docs.
7393 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7394 where the 'void *' argument is replaced by a function pointer argument.
7395 Previously 'void *' was abused to point to functions, which works on
7396 many platforms, but is not correct. As these functions are usually
7397 called by macros defined in OpenSSL header files, most source code
7398 should work without changes.
7401 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7402 sections with information on -D... compiler switches used for
7403 compiling the library so that applications can see them. To enable
7404 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7405 must be defined. E.g.,
7406 #define OPENSSL_ALGORITHM_DEFINES
7407 #include <openssl/opensslconf.h>
7408 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7409 [Richard Levitte, Ulf and Bodo Möller]
7411 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7415 *) Change the 'other' type in certificate aux info to a STACK_OF
7416 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7417 the required ASN1 format: arbitrary types determined by an OID.
7420 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7421 argument to 'req'. This is not because the function is newer or
7422 better than others it just uses the work 'NEW' in the certificate
7423 request header lines. Some software needs this.
7426 *) Reorganise password command line arguments: now passwords can be
7427 obtained from various sources. Delete the PEM_cb function and make
7428 it the default behaviour: i.e. if the callback is NULL and the
7429 usrdata argument is not NULL interpret it as a null terminated pass
7430 phrase. If usrdata and the callback are NULL then the pass phrase
7431 is prompted for as usual.
7434 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7435 the support is automatically enabled. The resulting binaries will
7436 autodetect the card and use it if present.
7437 [Ben Laurie and Compaq Inc.]
7439 *) Work around for Netscape hang bug. This sends certificate request
7440 and server done in one record. Since this is perfectly legal in the
7441 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7442 the bugs/SSLv3 entry for more info.
7445 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7448 *) Add -rand argument to smime and pkcs12 applications and read/write
7452 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7455 *) Add command line password options to the remaining applications.
7458 *) Bug fix for BN_div_recp() for numerators with an even number of
7462 *) More tests in bntest.c, and changed test_bn output.
7465 *) ./config recognizes MacOS X now.
7468 *) Bug fix for BN_div() when the first words of num and divsor are
7469 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7472 *) Add support for various broken PKCS#8 formats, and command line
7473 options to produce them.
7476 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7477 get temporary BIGNUMs from a BN_CTX.
7480 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7484 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7485 include a #define from the old name to the new. The original intent
7486 was that statically linked binaries could for example just call
7487 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7488 link with digests. This never worked becayse SSLeay_add_all_digests()
7489 and SSLeay_add_all_ciphers() were in the same source file so calling
7490 one would link with the other. They are now in separate source files.
7493 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7496 *) Use a less unusual form of the Miller-Rabin primality test (it used
7497 a binary algorithm for exponentiation integrated into the Miller-Rabin
7498 loop, our standard modexp algorithms are faster).
7501 *) Support for the EBCDIC character set completed.
7502 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7504 *) Source code cleanups: use const where appropriate, eliminate casts,
7505 use void * instead of char * in lhash.
7508 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7509 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7510 this the server could overwrite ephemeral keys that the client
7514 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7515 using 50 iterations of the Rabin-Miller test.
7517 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7518 iterations of the Rabin-Miller test as required by the appendix
7519 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7520 As BN_is_prime_fasttest includes trial division, DSA parameter
7521 generation becomes much faster.
7523 This implies a change for the callback functions in DSA_is_prime
7524 and DSA_generate_parameters: The callback function is called once
7525 for each positive witness in the Rabin-Miller test, not just
7526 occasionally in the inner loop; and the parameters to the
7527 callback function now provide an iteration count for the outer
7528 loop rather than for the current invocation of the inner loop.
7529 DSA_generate_parameters additionally can call the callback
7530 function with an 'iteration count' of -1, meaning that a
7531 candidate has passed the trial division test (when q is generated
7532 from an application-provided seed, trial division is skipped).
7535 *) New function BN_is_prime_fasttest that optionally does trial
7536 division before starting the Rabin-Miller test and has
7537 an additional BN_CTX * argument (whereas BN_is_prime always
7538 has to allocate at least one BN_CTX).
7539 'callback(1, -1, cb_arg)' is called when a number has passed the
7540 trial division stage.
7543 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7547 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7550 *) New function BN_pseudo_rand().
7553 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7554 bignum version of BN_from_montgomery() with the working code from
7555 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7559 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7560 made it impossible to use the same SSL_SESSION data structure in
7561 SSL2 clients in multiple threads.
7564 *) The return value of RAND_load_file() no longer counts bytes obtained
7565 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7566 to seed the PRNG (previously an explicit byte count was required).
7567 [Ulf Möller, Bodo Möller]
7569 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7570 used (char *) instead of (void *) and had casts all over the place.
7573 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7576 *) Retain source code compatibility for BN_prime_checks macro:
7577 BN_is_prime(..., BN_prime_checks, ...) now uses
7578 BN_prime_checks_for_size to determine the appropriate number of
7579 Rabin-Miller iterations.
7582 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7583 DH_CHECK_P_NOT_SAFE_PRIME.
7584 (Check if this is true? OpenPGP calls them "strong".)
7587 *) Merge the functionality of "dh" and "gendh" programs into a new program
7588 "dhparam". The old programs are retained for now but will handle DH keys
7589 (instead of parameters) in future.
7592 *) Make the ciphers, s_server and s_client programs check the return values
7593 when a new cipher list is set.
7596 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7597 ciphers. Before when the 56bit ciphers were enabled the sorting was
7600 The syntax for the cipher sorting has been extended to support sorting by
7601 cipher-strength (using the strength_bits hard coded in the tables).
7602 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7604 Fix a bug in the cipher-command parser: when supplying a cipher command
7605 string with an "undefined" symbol (neither command nor alphanumeric
7606 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7607 an error is flagged.
7609 Due to the strength-sorting extension, the code of the
7610 ssl_create_cipher_list() function was completely rearranged. I hope that
7611 the readability was also increased :-)
7612 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7614 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7615 for the first serial number and places 2 in the serial number file. This
7616 avoids problems when the root CA is created with serial number zero and
7617 the first user certificate has the same issuer name and serial number
7621 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7622 the new code. Add documentation for this stuff.
7625 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7626 X509_*() to X509at_*() on the grounds that they don't handle X509
7627 structures and behave in an analagous way to the X509v3 functions:
7628 they shouldn't be called directly but wrapper functions should be used
7631 So we also now have some wrapper functions that call the X509at functions
7632 when passed certificate requests. (TO DO: similar things can be done with
7633 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7634 things. Some of these need some d2i or i2d and print functionality
7635 because they handle more complex structures.)
7638 *) Add missing #ifndefs that caused missing symbols when building libssl
7639 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7640 NO_RSA in ssl/s2*.c.
7641 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7643 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7644 has a return value which indicates the quality of the random data
7645 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7646 error queue. New function RAND_pseudo_bytes() generates output that is
7647 guaranteed to be unique but not unpredictable. RAND_add is like
7648 RAND_seed, but takes an extra argument for an entropy estimate
7649 (RAND_seed always assumes full entropy).
7652 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7653 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7654 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7655 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7656 false-positive rate of at most 2^-80 for random input.
7659 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7662 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7663 in the 0.9.5 release), this returns the chain
7664 from an X509_CTX structure with a dup of the stack and all
7665 the X509 reference counts upped: so the stack will exist
7666 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7669 Also make SSL_SESSION_print() print out the verify return
7673 *) Add manpage for the pkcs12 command. Also change the default
7674 behaviour so MAC iteration counts are used unless the new
7675 -nomaciter option is used. This improves file security and
7676 only older versions of MSIE (4.0 for example) need it.
7679 *) Honor the no-xxx Configure options when creating .DEF files.
7682 *) Add PKCS#10 attributes to field table: challengePassword,
7683 unstructuredName and unstructuredAddress. These are taken from
7684 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7685 international characters are used.
7687 More changes to X509_ATTRIBUTE code: allow the setting of types
7688 based on strings. Remove the 'loc' parameter when adding
7689 attributes because these will be a SET OF encoding which is sorted
7693 *) Initial changes to the 'req' utility to allow request generation
7694 automation. This will allow an application to just generate a template
7695 file containing all the field values and have req construct the
7698 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7699 used all over the place including certificate requests and PKCS#7
7700 structures. They are currently handled manually where necessary with
7701 some primitive wrappers for PKCS#7. The new functions behave in a
7702 manner analogous to the X509 extension functions: they allow
7703 attributes to be looked up by NID and added.
7705 Later something similar to the X509V3 code would be desirable to
7706 automatically handle the encoding, decoding and printing of the
7707 more complex types. The string types like challengePassword can
7708 be handled by the string table functions.
7710 Also modified the multi byte string table handling. Now there is
7711 a 'global mask' which masks out certain types. The table itself
7712 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7713 is useful when for example there is only one permissible type
7714 (as in countryName) and using the mask might result in no valid
7718 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7719 SSL_get_peer_finished to allow applications to obtain the latest
7720 Finished messages sent to the peer or expected from the peer,
7721 respectively. (SSL_get_peer_finished is usually the Finished message
7722 actually received from the peer, otherwise the protocol will be aborted.)
7724 As the Finished message are message digests of the complete handshake
7725 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7726 be used for external authentication procedures when the authentication
7727 provided by SSL/TLS is not desired or is not enough.
7730 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7731 the host supports BWX extension and if Compaq C is present on the
7732 $PATH. Just exploiting of the BWX extension results in 20-30%
7733 performance kick for some algorithms, e.g. DES and RC4 to mention
7734 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7738 *) Add support for MS "fast SGC". This is arguably a violation of the
7739 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7740 weak crypto and after checking the certificate is SGC a second one
7741 with strong crypto. MS SGC stops the first handshake after receiving
7742 the server certificate message and sends a second client hello. Since
7743 a server will typically do all the time consuming operations before
7744 expecting any further messages from the client (server key exchange
7745 is the most expensive) there is little difference between the two.
7747 To get OpenSSL to support MS SGC we have to permit a second client
7748 hello message after we have sent server done. In addition we have to
7749 reset the MAC if we do get this second client hello.
7752 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7753 if a DER encoded private key is RSA or DSA traditional format. Changed
7754 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7755 format DER encoded private key. Newer code should use PKCS#8 format which
7756 has the key type encoded in the ASN1 structure. Added DER private key
7757 support to pkcs8 application.
7760 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7761 ciphersuites has been selected (as required by the SSL 3/TLS 1
7762 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7763 is set, we interpret this as a request to violate the specification
7764 (the worst that can happen is a handshake failure, and 'correct'
7765 behaviour would result in a handshake failure anyway).
7768 *) In SSL_CTX_add_session, take into account that there might be multiple
7769 SSL_SESSION structures with the same session ID (e.g. when two threads
7770 concurrently obtain them from an external cache).
7771 The internal cache can handle only one SSL_SESSION with a given ID,
7772 so if there's a conflict, we now throw out the old one to achieve
7776 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7777 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7778 some routines that use cipher OIDs: some ciphers do not have OIDs
7779 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7783 *) Simplify the trust setting structure and code. Now we just have
7784 two sequences of OIDs for trusted and rejected settings. These will
7785 typically have values the same as the extended key usage extension
7786 and any application specific purposes.
7788 The trust checking code now has a default behaviour: it will just
7789 check for an object with the same NID as the passed id. Functions can
7790 be provided to override either the default behaviour or the behaviour
7791 for a given id. SSL client, server and email already have functions
7792 in place for compatibility: they check the NID and also return "trusted"
7793 if the certificate is self signed.
7796 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7797 traditional format into an EVP_PKEY structure.
7800 *) Add a password callback function PEM_cb() which either prompts for
7801 a password if usr_data is NULL or otherwise assumes it is a null
7802 terminated password. Allow passwords to be passed on command line
7803 environment or config files in a few more utilities.
7806 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7807 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7808 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7809 Update documentation.
7812 *) Support for ASN1 "NULL" type. This could be handled before by using
7813 ASN1_TYPE but there wasn't any function that would try to read a NULL
7814 and produce an error if it couldn't. For compatibility we also have
7815 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7816 don't allocate anything because they don't need to.
7819 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7821 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7823 *) Rebuild of the memory allocation routines used by OpenSSL code and
7824 possibly others as well. The purpose is to make an interface that
7825 provide hooks so anyone can build a separate set of allocation and
7826 deallocation routines to be used by OpenSSL, for example memory
7827 pool implementations, or something else, which was previously hard
7828 since Malloc(), Realloc() and Free() were defined as macros having
7829 the values malloc, realloc and free, respectively (except for Win32
7830 compilations). The same is provided for memory debugging code.
7831 OpenSSL already comes with functionality to find memory leaks, but
7832 this gives people a chance to debug other memory problems.
7834 With these changes, a new set of functions and macros have appeared:
7836 CRYPTO_set_mem_debug_functions() [F]
7837 CRYPTO_get_mem_debug_functions() [F]
7838 CRYPTO_dbg_set_options() [F]
7839 CRYPTO_dbg_get_options() [F]
7840 CRYPTO_malloc_debug_init() [M]
7842 The memory debug functions are NULL by default, unless the library
7843 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7844 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7845 gives the standard debugging functions that come with OpenSSL) or
7846 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7847 provided by the library user) must be used. When the standard
7848 debugging functions are used, CRYPTO_dbg_set_options can be used to
7849 request additional information:
7850 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7851 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7853 Also, things like CRYPTO_set_mem_functions will always give the
7854 expected result (the new set of functions is used for allocation
7855 and deallocation) at all times, regardless of platform and compiler
7858 To finish it up, some functions that were never use in any other
7859 way than through macros have a new API and new semantic:
7862 CRYPTO_dbg_realloc()
7865 All macros of value have retained their old syntax.
7866 [Richard Levitte and Bodo Moeller]
7868 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7869 ordering of SMIMECapabilities wasn't in "strength order" and there
7870 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7874 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7875 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7876 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7878 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7879 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7880 functionality to handle multipart/signed properly) and a utility
7881 called 'smime' to call all this stuff. This is based on code I
7882 originally wrote for Celo who have kindly allowed it to be
7883 included in OpenSSL.
7886 *) Add variants des_set_key_checked and des_set_key_unchecked of
7887 des_set_key (aka des_key_sched). Global variable des_check_key
7888 decides which of these is called by des_set_key; this way
7889 des_check_key behaves as it always did, but applications and
7890 the library itself, which was buggy for des_check_key == 1,
7891 have a cleaner way to pick the version they need.
7894 *) New function PKCS12_newpass() which changes the password of a
7898 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7899 dynamic mix. In both cases the ids can be used as an index into the
7900 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7901 functions so they accept a list of the field values and the
7902 application doesn't need to directly manipulate the X509_TRUST
7906 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7910 *) Modify the way the V3 extension code looks up extensions. This now
7911 works in a similar way to the object code: we have some "standard"
7912 extensions in a static table which is searched with OBJ_bsearch()
7913 and the application can add dynamic ones if needed. The file
7914 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7915 updated whenever a new extension is added to the core code and kept
7916 in ext_nid order. There is a simple program 'tabtest.c' which checks
7917 this. New extensions are not added too often so this file can readily
7918 be maintained manually.
7920 There are two big advantages in doing things this way. The extensions
7921 can be looked up immediately and no longer need to be "added" using
7922 X509V3_add_standard_extensions(): this function now does nothing.
7923 [Side note: I get *lots* of email saying the extension code doesn't
7924 work because people forget to call this function]
7925 Also no dynamic allocation is done unless new extensions are added:
7926 so if we don't add custom extensions there is no need to call
7927 X509V3_EXT_cleanup().
7930 *) Modify enc utility's salting as follows: make salting the default. Add a
7931 magic header, so unsalted files fail gracefully instead of just decrypting
7932 to garbage. This is because not salting is a big security hole, so people
7933 should be discouraged from doing it.
7936 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7937 digest to be passed on the command line but it only used this
7938 parameter when signing a certificate. Modified so all relevant
7939 operations are affected by the digest parameter including the
7940 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7941 DSA key was used because it didn't fix the digest.
7944 *) Initial certificate chain verify code. Currently tests the untrusted
7945 certificates for consistency with the verify purpose (which is set
7946 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7948 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7949 this is because it will reject chains with invalid extensions whereas
7950 every previous version of OpenSSL and SSLeay made no checks at all.
7952 Trust code: checks the root CA for the relevant trust settings. Trust
7953 settings have an initial value consistent with the verify purpose: e.g.
7954 if the verify purpose is for SSL client use it expects the CA to be
7955 trusted for SSL client use. However the default value can be changed to
7956 permit custom trust settings: one example of this would be to only trust
7957 certificates from a specific "secure" set of CAs.
7959 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7960 which should be used for version portability: especially since the
7961 verify structure is likely to change more often now.
7963 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7964 to set them. If not set then assume SSL clients will verify SSL servers
7967 Two new options to the verify program: -untrusted allows a set of
7968 untrusted certificates to be passed in and -purpose which sets the
7969 intended purpose of the certificate. If a purpose is set then the
7970 new chain verify code is used to check extension consistency.
7973 *) Support for the authority information access extension.
7976 *) Modify RSA and DSA PEM read routines to transparently handle
7977 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7978 public keys in a format compatible with certificate
7979 SubjectPublicKeyInfo structures. Unfortunately there were already
7980 functions called *_PublicKey_* which used various odd formats so
7981 these are retained for compatibility: however the DSA variants were
7982 never in a public release so they have been deleted. Changed dsa/rsa
7983 utilities to handle the new format: note no releases ever handled public
7984 keys so we should be OK.
7986 The primary motivation for this change is to avoid the same fiasco
7987 that dogs private keys: there are several incompatible private key
7988 formats some of which are standard and some OpenSSL specific and
7989 require various evil hacks to allow partial transparent handling and
7990 even then it doesn't work with DER formats. Given the option anything
7991 other than PKCS#8 should be dumped: but the other formats have to
7992 stay in the name of compatibility.
7994 With public keys and the benefit of hindsight one standard format
7995 is used which works with EVP_PKEY, RSA or DSA structures: though
7996 it clearly returns an error if you try to read the wrong kind of key.
7998 Added a -pubkey option to the 'x509' utility to output the public key.
7999 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8000 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8001 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8002 that do the same as the EVP_PKEY_assign_*() except they up the
8003 reference count of the added key (they don't "swallow" the
8007 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8008 CRLs would fail if the file contained no certificates or no CRLs:
8009 added a new function to read in both types and return the number
8010 read: this means that if none are read it will be an error. The
8011 DER versions of the certificate and CRL reader would always fail
8012 because it isn't possible to mix certificates and CRLs in DER format
8013 without choking one or the other routine. Changed this to just read
8014 a certificate: this is the best we can do. Also modified the code
8015 in apps/verify.c to take notice of return codes: it was previously
8016 attempting to read in certificates from NULL pointers and ignoring
8017 any errors: this is one reason why the cert and CRL reader seemed
8018 to work. It doesn't check return codes from the default certificate
8019 routines: these may well fail if the certificates aren't installed.
8022 *) Code to support otherName option in GeneralName.
8025 *) First update to verify code. Change the verify utility
8026 so it warns if it is passed a self signed certificate:
8027 for consistency with the normal behaviour. X509_verify
8028 has been modified to it will now verify a self signed
8029 certificate if *exactly* the same certificate appears
8030 in the store: it was previously impossible to trust a
8031 single self signed certificate. This means that:
8032 openssl verify ss.pem
8033 now gives a warning about a self signed certificate but
8034 openssl verify -CAfile ss.pem ss.pem
8038 *) For servers, store verify_result in SSL_SESSION data structure
8039 (and add it to external session representation).
8040 This is needed when client certificate verifications fails,
8041 but an application-provided verification callback (set by
8042 SSL_CTX_set_cert_verify_callback) allows accepting the session
8043 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8044 but returns 1): When the session is reused, we have to set
8045 ssl->verify_result to the appropriate error code to avoid
8047 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8049 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8050 case in PKCS7_dataInit() where the signed PKCS7 structure
8051 didn't contain any existing data because it was being created.
8052 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8054 *) Add a salt to the key derivation routines in enc.c. This
8055 forms the first 8 bytes of the encrypted file. Also add a
8056 -S option to allow a salt to be input on the command line.
8059 *) New function X509_cmp(). Oddly enough there wasn't a function
8060 to compare two certificates. We do this by working out the SHA1
8061 hash and comparing that. X509_cmp() will be needed by the trust
8065 *) SSL_get1_session() is like SSL_get_session(), but increments
8066 the reference count in the SSL_SESSION returned.
8067 [Geoff Thorpe <geoff@eu.c2.net>]
8069 *) Fix for 'req': it was adding a null to request attributes.
8070 Also change the X509_LOOKUP and X509_INFO code to handle
8071 certificate auxiliary information.
8074 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8078 *) Add the possibility to add extra information to the memory leak
8079 detecting output, to form tracebacks, showing from where each
8080 allocation was originated: CRYPTO_push_info("constant string") adds
8081 the string plus current file name and line number to a per-thread
8082 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8083 is like calling CYRPTO_pop_info() until the stack is empty.
8084 Also updated memory leak detection code to be multi-thread-safe.
8087 *) Add options -text and -noout to pkcs7 utility and delete the
8088 encryption options which never did anything. Update docs.
8091 *) Add options to some of the utilities to allow the pass phrase
8092 to be included on either the command line (not recommended on
8093 OSes like Unix) or read from the environment. Update the
8094 manpages and fix a few bugs.
8097 *) Add a few manpages for some of the openssl commands.
8100 *) Fix the -revoke option in ca. It was freeing up memory twice,
8101 leaking and not finding already revoked certificates.
8104 *) Extensive changes to support certificate auxiliary information.
8105 This involves the use of X509_CERT_AUX structure and X509_AUX
8106 functions. An X509_AUX function such as PEM_read_X509_AUX()
8107 can still read in a certificate file in the usual way but it
8108 will also read in any additional "auxiliary information". By
8109 doing things this way a fair degree of compatibility can be
8110 retained: existing certificates can have this information added
8111 using the new 'x509' options.
8113 Current auxiliary information includes an "alias" and some trust
8114 settings. The trust settings will ultimately be used in enhanced
8115 certificate chain verification routines: currently a certificate
8116 can only be trusted if it is self signed and then it is trusted
8120 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8121 The problem was that one of the replacement routines had not been working
8122 since SSLeay releases. For now the offending routine has been replaced
8123 with non-optimised assembler. Even so, this now gives around 95%
8124 performance improvement for 1024 bit RSA signs.
8127 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8128 handling. Most clients have the effective key size in bits equal to
8129 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8130 A few however don't do this and instead use the size of the decrypted key
8131 to determine the RC2 key length and the AlgorithmIdentifier to determine
8132 the effective key length. In this case the effective key length can still
8133 be 40 bits but the key length can be 168 bits for example. This is fixed
8134 by manually forcing an RC2 key into the EVP_PKEY structure because the
8135 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8136 the key length and effective key length are equal.
8139 *) Add a bunch of functions that should simplify the creation of
8140 X509_NAME structures. Now you should be able to do:
8141 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8142 and have it automatically work out the correct field type and fill in
8143 the structures. The more adventurous can try:
8144 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8145 and it will (hopefully) work out the correct multibyte encoding.
8148 *) Change the 'req' utility to use the new field handling and multibyte
8149 copy routines. Before the DN field creation was handled in an ad hoc
8150 way in req, ca, and x509 which was rather broken and didn't support
8151 BMPStrings or UTF8Strings. Since some software doesn't implement
8152 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8153 using the dirstring_type option. See the new comment in the default
8154 openssl.cnf for more info.
8157 *) Make crypto/rand/md_rand.c more robust:
8158 - Assure unique random numbers after fork().
8159 - Make sure that concurrent threads access the global counter and
8160 md serializably so that we never lose entropy in them
8161 or use exactly the same state in multiple threads.
8162 Access to the large state is not always serializable because
8163 the additional locking could be a performance killer, and
8164 md should be large enough anyway.
8167 *) New file apps/app_rand.c with commonly needed functionality
8168 for handling the random seed file.
8170 Use the random seed file in some applications that previously did not:
8172 dsaparam -genkey (which also ignored its '-rand' option),
8175 x509 (when signing).
8176 Except on systems with /dev/urandom, it is crucial to have a random
8177 seed file at least for key creation, DSA signing, and for DH exchanges;
8178 for RSA signatures we could do without one.
8180 gendh and gendsa (unlike genrsa) used to read only the first byte
8181 of each file listed in the '-rand' option. The function as previously
8182 found in genrsa is now in app_rand.c and is used by all programs
8183 that support '-rand'.
8186 *) In RAND_write_file, use mode 0600 for creating files;
8187 don't just chmod when it may be too late.
8190 *) Report an error from X509_STORE_load_locations
8191 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8194 *) New function ASN1_mbstring_copy() this copies a string in either
8195 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8196 into an ASN1_STRING type. A mask of permissible types is passed
8197 and it chooses the "minimal" type to use or an error if not type
8201 *) Add function equivalents to the various macros in asn1.h. The old
8202 macros are retained with an M_ prefix. Code inside the library can
8203 use the M_ macros. External code (including the openssl utility)
8204 should *NOT* in order to be "shared library friendly".
8207 *) Add various functions that can check a certificate's extensions
8208 to see if it usable for various purposes such as SSL client,
8209 server or S/MIME and CAs of these types. This is currently
8210 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8211 verification. Also added a -purpose flag to x509 utility to
8212 print out all the purposes.
8215 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8219 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8220 for, obtain and decode and extension and obtain its critical flag.
8221 This allows all the necessary extension code to be handled in a
8222 single function call.
8225 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8226 platforms. See crypto/rc4/rc4_enc.c for further details.
8229 *) New -noout option to asn1parse. This causes no output to be produced
8230 its main use is when combined with -strparse and -out to extract data
8231 from a file (which may not be in ASN.1 format).
8234 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8235 when producing the local key id.
8236 [Richard Levitte <levitte@stacken.kth.se>]
8238 *) New option -dhparam in s_server. This allows a DH parameter file to be
8239 stated explicitly. If it is not stated then it tries the first server
8240 certificate file. The previous behaviour hard coded the filename
8244 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8245 a public key to be input or output. For example:
8246 openssl rsa -in key.pem -pubout -out pubkey.pem
8247 Also added necessary DSA public key functions to handle this.
8250 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8251 in the message. This was handled by allowing
8252 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8253 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8255 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8256 to the end of the strings whereas this didn't. This would cause problems
8257 if strings read with d2i_ASN1_bytes() were later modified.
8258 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8260 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8261 data and it contains EOF it will end up returning an error. This is
8262 caused by input 46 bytes long. The cause is due to the way base64
8263 BIOs find the start of base64 encoded data. They do this by trying a
8264 trial decode on each line until they find one that works. When they
8265 do a flag is set and it starts again knowing it can pass all the
8266 data directly through the decoder. Unfortunately it doesn't reset
8267 the context it uses. This means that if EOF is reached an attempt
8268 is made to pass two EOFs through the context and this causes the
8269 resulting error. This can also cause other problems as well. As is
8270 usual with these problems it takes *ages* to find and the fix is
8271 trivial: move one line.
8272 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8274 *) Ugly workaround to get s_client and s_server working under Windows. The
8275 old code wouldn't work because it needed to select() on sockets and the
8276 tty (for keypresses and to see if data could be written). Win32 only
8277 supports select() on sockets so we select() with a 1s timeout on the
8278 sockets and then see if any characters are waiting to be read, if none
8279 are present then we retry, we also assume we can always write data to
8280 the tty. This isn't nice because the code then blocks until we've
8281 received a complete line of data and it is effectively polling the
8282 keyboard at 1s intervals: however it's quite a bit better than not
8283 working at all :-) A dedicated Windows application might handle this
8284 with an event loop for example.
8287 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8288 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8289 will be called when RSA_sign() and RSA_verify() are used. This is useful
8290 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8291 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8292 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8293 This necessitated the support of an extra signature type NID_md5_sha1
8294 for SSL signatures and modifications to the SSL library to use it instead
8295 of calling RSA_public_decrypt() and RSA_private_encrypt().
8298 *) Add new -verify -CAfile and -CApath options to the crl program, these
8299 will lookup a CRL issuers certificate and verify the signature in a
8300 similar way to the verify program. Tidy up the crl program so it
8301 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8302 less strict. It will now permit CRL extensions even if it is not
8303 a V2 CRL: this will allow it to tolerate some broken CRLs.
8306 *) Initialize all non-automatic variables each time one of the openssl
8307 sub-programs is started (this is necessary as they may be started
8308 multiple times from the "OpenSSL>" prompt).
8309 [Lennart Bang, Bodo Moeller]
8311 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8312 removing all other RSA functionality (this is what NO_RSA does). This
8313 is so (for example) those in the US can disable those operations covered
8314 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8318 *) Non-copying interface to BIO pairs.
8319 (still largely untested)
8322 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8323 ASCII string. This was handled independently in various places before.
8326 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8327 UTF8 strings a character at a time.
8330 *) Use client_version from client hello to select the protocol
8331 (s23_srvr.c) and for RSA client key exchange verification
8332 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8335 *) Add various utility functions to handle SPKACs, these were previously
8336 handled by poking round in the structure internals. Added new function
8337 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8338 print, verify and generate SPKACs. Based on an original idea from
8339 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8342 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8345 *) Allow the config file extension section to be overwritten on the
8346 command line. Based on an original idea from Massimiliano Pala
8347 <madwolf@comune.modena.it>. The new option is called -extensions
8348 and can be applied to ca, req and x509. Also -reqexts to override
8349 the request extensions in req and -crlexts to override the crl extensions
8353 *) Add new feature to the SPKAC handling in ca. Now you can include
8354 the same field multiple times by preceding it by "XXXX." for example:
8357 this is the same syntax as used in the req config file.
8360 *) Allow certificate extensions to be added to certificate requests. These
8361 are specified in a 'req_extensions' option of the req section of the
8362 config file. They can be printed out with the -text option to req but
8363 are otherwise ignored at present.
8366 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8367 data read consists of only the final block it would not decrypted because
8368 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8369 A misplaced 'break' also meant the decrypted final block might not be
8370 copied until the next read.
8373 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8374 a few extra parameters to the DH structure: these will be useful if
8375 for example we want the value of 'q' or implement X9.42 DH.
8378 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8379 provides hooks that allow the default DSA functions or functions on a
8380 "per key" basis to be replaced. This allows hardware acceleration and
8381 hardware key storage to be handled without major modification to the
8382 library. Also added low level modexp hooks and CRYPTO_EX structure and
8383 associated functions.
8386 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8387 as "read only": it can't be written to and the buffer it points to will
8388 not be freed. Reading from a read only BIO is much more efficient than
8389 a normal memory BIO. This was added because there are several times when
8390 an area of memory needs to be read from a BIO. The previous method was
8391 to create a memory BIO and write the data to it, this results in two
8392 copies of the data and an O(n^2) reading algorithm. There is a new
8393 function BIO_new_mem_buf() which creates a read only memory BIO from
8394 an area of memory. Also modified the PKCS#7 routines to use read only
8398 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8399 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8400 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8401 but a retry condition occured while trying to read the rest.
8404 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8405 NID_pkcs7_encrypted by default: this was wrong since this should almost
8406 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8407 the encrypted data type: this is a more sensible place to put it and it
8408 allows the PKCS#12 code to be tidied up that duplicated this
8412 *) Changed obj_dat.pl script so it takes its input and output files on
8413 the command line. This should avoid shell escape redirection problems
8417 *) Initial support for certificate extension requests, these are included
8418 in things like Xenroll certificate requests. Included functions to allow
8419 extensions to be obtained and added.
8422 *) -crlf option to s_client and s_server for sending newlines as
8423 CRLF (as required by many protocols).
8426 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8428 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8429 [Ralf S. Engelschall]
8431 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8432 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8434 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8438 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8439 DH parameters/keys (q is lost during that conversion, but the resulting
8440 DH parameters contain its length).
8442 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8443 much faster than DH_generate_parameters (which creates parameters
8444 where p = 2*q + 1), and also the smaller q makes DH computations
8445 much more efficient (160-bit exponentiation instead of 1024-bit
8446 exponentiation); so this provides a convenient way to support DHE
8447 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8448 utter importance to use
8449 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8451 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8452 when such DH parameters are used, because otherwise small subgroup
8453 attacks may become possible!
8456 *) Avoid memory leak in i2d_DHparams.
8459 *) Allow the -k option to be used more than once in the enc program:
8460 this allows the same encrypted message to be read by multiple recipients.
8463 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8464 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8465 it will always use the numerical form of the OID, even if it has a short
8469 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8470 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8471 otherwise bn_mod_exp was called. In the case of hardware keys for example
8472 no private key components need be present and it might store extra data
8473 in the RSA structure, which cannot be accessed from bn_mod_exp.
8474 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8475 private key operations.
8478 *) Added support for SPARC Linux.
8481 *) pem_password_cb function type incompatibly changed from
8482 typedef int pem_password_cb(char *buf, int size, int rwflag);
8484 ....(char *buf, int size, int rwflag, void *userdata);
8485 so that applications can pass data to their callbacks:
8486 The PEM[_ASN1]_{read,write}... functions and macros now take an
8487 additional void * argument, which is just handed through whenever
8488 the password callback is called.
8489 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8491 New function SSL_CTX_set_default_passwd_cb_userdata.
8493 Compatibility note: As many C implementations push function arguments
8494 onto the stack in reverse order, the new library version is likely to
8495 interoperate with programs that have been compiled with the old
8496 pem_password_cb definition (PEM_whatever takes some data that
8497 happens to be on the stack as its last argument, and the callback
8498 just ignores this garbage); but there is no guarantee whatsoever that
8501 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8502 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8503 problems not only on Windows, but also on some Unix platforms.
8504 To avoid problematic command lines, these definitions are now in an
8505 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8506 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8509 *) MIPS III/IV assembler module is reimplemented.
8512 *) More DES library cleanups: remove references to srand/rand and
8513 delete an unused file.
8516 *) Add support for the the free Netwide assembler (NASM) under Win32,
8517 since not many people have MASM (ml) and it can be hard to obtain.
8518 This is currently experimental but it seems to work OK and pass all
8519 the tests. Check out INSTALL.W32 for info.
8522 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8523 without temporary keys kept an extra copy of the server key,
8524 and connections with temporary keys did not free everything in case
8528 *) New function RSA_check_key and new openssl rsa option -check
8529 for verifying the consistency of RSA keys.
8530 [Ulf Moeller, Bodo Moeller]
8532 *) Various changes to make Win32 compile work:
8533 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8534 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8535 comparison" warnings.
8536 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8539 *) Add a debugging option to PKCS#5 v2 key generation function: when
8540 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8541 derived keys are printed to stderr.
8544 *) Copy the flags in ASN1_STRING_dup().
8545 [Roman E. Pavlov <pre@mo.msk.ru>]
8547 *) The x509 application mishandled signing requests containing DSA
8548 keys when the signing key was also DSA and the parameters didn't match.
8550 It was supposed to omit the parameters when they matched the signing key:
8551 the verifying software was then supposed to automatically use the CA's
8552 parameters if they were absent from the end user certificate.
8554 Omitting parameters is no longer recommended. The test was also
8555 the wrong way round! This was probably due to unusual behaviour in
8556 EVP_cmp_parameters() which returns 1 if the parameters match.
8557 This meant that parameters were omitted when they *didn't* match and
8558 the certificate was useless. Certificates signed with 'ca' didn't have
8560 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8562 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8563 The interface is as follows:
8564 Applications can use
8565 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8566 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8567 "off" is now the default.
8568 The library internally uses
8569 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8570 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8571 to disable memory-checking temporarily.
8573 Some inconsistent states that previously were possible (and were
8574 even the default) are now avoided.
8576 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8577 with each memory chunk allocated; this is occasionally more helpful
8578 than just having a counter.
8580 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8582 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8586 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8587 which largely parallels "options", but is for changing API behaviour,
8588 whereas "options" are about protocol behaviour.
8589 Initial "mode" flags are:
8591 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8592 a single record has been written.
8593 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8594 retries use the same buffer location.
8595 (But all of the contents must be
8599 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8602 *) Fix problems with no-hmac etc.
8603 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8605 *) New functions RSA_get_default_method(), RSA_set_method() and
8606 RSA_get_method(). These allows replacement of RSA_METHODs without having
8607 to mess around with the internals of an RSA structure.
8610 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8611 Also really enable memory leak checks in openssl.c and in some
8613 [Chad C. Mulligan, Bodo Moeller]
8615 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8616 up the length of negative integers. This has now been simplified to just
8617 store the length when it is first determined and use it later, rather
8618 than trying to keep track of where data is copied and updating it to
8620 [Steve Henson, reported by Brien Wheeler
8621 <bwheeler@authentica-security.com>]
8623 *) Add a new function PKCS7_signatureVerify. This allows the verification
8624 of a PKCS#7 signature but with the signing certificate passed to the
8625 function itself. This contrasts with PKCS7_dataVerify which assumes the
8626 certificate is present in the PKCS#7 structure. This isn't always the
8627 case: certificates can be omitted from a PKCS#7 structure and be
8628 distributed by "out of band" means (such as a certificate database).
8631 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8632 function prototypes in pem.h, also change util/mkdef.pl to add the
8633 necessary function names.
8636 *) mk1mf.pl (used by Windows builds) did not properly read the
8637 options set by Configure in the top level Makefile, and Configure
8638 was not even able to write more than one option correctly.
8639 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8642 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8643 file to be loaded from a BIO or FILE pointer. The BIO version will
8644 for example allow memory BIOs to contain config info.
8647 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8648 Whoever hopes to achieve shared-library compatibility across versions
8649 must use this, not the compile-time macro.
8650 (Exercise 0.9.4: Which is the minimum library version required by
8652 Note: All this applies only to multi-threaded programs, others don't
8656 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8657 through a BIO pair triggered the default case, i.e.
8658 SSLerr(...,SSL_R_UNKNOWN_STATE).
8661 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8662 can use the SSL library even if none of the specific BIOs is
8666 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8667 for the encoded length.
8668 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8670 *) Add initial documentation of the X509V3 functions.
8673 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8674 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8675 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8676 secure PKCS#8 private key format with a high iteration count.
8679 *) Fix determination of Perl interpreter: A perl or perl5
8680 _directory_ in $PATH was also accepted as the interpreter.
8681 [Ralf S. Engelschall]
8683 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8684 wrong with it but it was very old and did things like calling
8685 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8689 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8690 to use the new extension code.
8693 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8694 with macros. This should make it easier to change their form, add extra
8695 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8699 *) Add to configuration table a new entry that can specify an alternative
8700 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8701 according to Mark Crispin <MRC@Panda.COM>.
8705 *) DES CBC did not update the IV. Weird.
8708 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8709 Changing the behaviour of the former might break existing programs --
8710 where IV updating is needed, des_ncbc_encrypt can be used.
8713 *) When bntest is run from "make test" it drives bc to check its
8714 calculations, as well as internally checking them. If an internal check
8715 fails, it needs to cause bc to give a non-zero result or make test carries
8716 on without noticing the failure. Fixed.
8719 *) DES library cleanups.
8722 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8723 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8724 ciphers. NOTE: although the key derivation function has been verified
8725 against some published test vectors it has not been extensively tested
8726 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8730 *) Instead of "mkdir -p", which is not fully portable, use new
8731 Perl script "util/mkdir-p.pl".
8734 *) Rewrite the way password based encryption (PBE) is handled. It used to
8735 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8736 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8737 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8738 the 'parameter' field of the AlgorithmIdentifier is passed to the
8739 underlying key generation function so it must do its own ASN1 parsing.
8740 This has also changed the EVP_PBE_CipherInit() function which now has a
8741 'parameter' argument instead of literal salt and iteration count values
8742 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8745 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8746 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8747 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8748 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8749 value was just used as a "magic string" and not used directly its
8750 value doesn't matter.
8753 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8757 *) "linux-sparc64" configuration (ultrapenguin).
8758 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8759 "linux-sparc" configuration.
8760 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8762 *) config now generates no-xxx options for missing ciphers.
8765 *) Support the EBCDIC character set (work in progress).
8766 File ebcdic.c not yet included because it has a different license.
8767 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8769 *) Support BS2000/OSD-POSIX.
8770 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8772 *) Make callbacks for key generation use void * instead of char *.
8775 *) Make S/MIME samples compile (not yet tested).
8778 *) Additional typesafe stacks.
8781 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8785 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8787 *) New configuration variant "sco5-gcc".
8789 *) Updated some demos.
8790 [Sean O Riordain, Wade Scholine]
8792 *) Add missing BIO_free at exit of pkcs12 application.
8795 *) Fix memory leak in conf.c.
8798 *) Updates for Win32 to assembler version of MD5.
8801 *) Set #! path to perl in apps/der_chop to where we found it
8802 instead of using a fixed path.
8805 *) SHA library changes for irix64-mips4-cc.
8808 *) Improvements for VMS support.
8812 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8814 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8815 This also avoids the problems with SC4.2 and unpatched SC5.
8816 [Andy Polyakov <appro@fy.chalmers.se>]
8818 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8819 These are required because of the typesafe stack would otherwise break
8820 existing code. If old code used a structure member which used to be STACK
8821 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8822 sk_num or sk_value it would produce an error because the num, data members
8823 are not present in STACK_OF. Now it just produces a warning. sk_set
8824 replaces the old method of assigning a value to sk_value
8825 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8826 that does this will no longer work (and should use sk_set instead) but
8827 this could be regarded as a "questionable" behaviour anyway.
8830 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8831 correctly handle encrypted S/MIME data.
8834 *) Change type of various DES function arguments from des_cblock
8835 (which means, in function argument declarations, pointer to char)
8836 to des_cblock * (meaning pointer to array with 8 char elements),
8837 which allows the compiler to do more typechecking; it was like
8838 that back in SSLeay, but with lots of ugly casts.
8840 Introduce new type const_des_cblock.
8843 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8844 problems: find RecipientInfo structure that matches recipient certificate
8845 and initialise the ASN1 structures properly based on passed cipher.
8848 *) Belatedly make the BN tests actually check the results.
8851 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8852 to and from BNs: it was completely broken. New compilation option
8853 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8854 key elements as negative integers.
8857 *) Reorganize and speed up MD5.
8858 [Andy Polyakov <appro@fy.chalmers.se>]
8861 [Richard Levitte <richard@levitte.org>]
8863 *) New option -out to asn1parse to allow the parsed structure to be
8864 output to a file. This is most useful when combined with the -strparse
8865 option to examine the output of things like OCTET STRINGS.
8868 *) Make SSL library a little more fool-proof by not requiring any longer
8869 that SSL_set_{accept,connect}_state be called before
8870 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8871 in many applications because usually everything *appeared* to work as
8872 intended anyway -- now it really works as intended).
8875 *) Move openssl.cnf out of lib/.
8878 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8879 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8880 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8881 [Ralf S. Engelschall]
8883 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8884 handle PKCS#7 enveloped data properly.
8885 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8887 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8888 copying pointers. The cert_st handling is changed by this in
8889 various ways (and thus what used to be known as ctx->default_cert
8890 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8891 any longer when s->cert does not give us what we need).
8892 ssl_cert_instantiate becomes obsolete by this change.
8893 As soon as we've got the new code right (possibly it already is?),
8894 we have solved a couple of bugs of the earlier code where s->cert
8895 was used as if it could not have been shared with other SSL structures.
8897 Note that using the SSL API in certain dirty ways now will result
8898 in different behaviour than observed with earlier library versions:
8899 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8900 does not influence s as it used to.
8902 In order to clean up things more thoroughly, inside SSL_SESSION
8903 we don't use CERT any longer, but a new structure SESS_CERT
8904 that holds per-session data (if available); currently, this is
8905 the peer's certificate chain and, for clients, the server's certificate
8906 and temporary key. CERT holds only those values that can have
8907 meaningful defaults in an SSL_CTX.
8910 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8911 from the internal representation. Various PKCS#7 fixes: remove some
8912 evil casts and set the enc_dig_alg field properly based on the signing
8916 *) Allow PKCS#12 password to be set from the command line or the
8917 environment. Let 'ca' get its config file name from the environment
8918 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8922 *) Allow certificate policies extension to use an IA5STRING for the
8923 organization field. This is contrary to the PKIX definition but
8924 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8928 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8929 without disallowing inline assembler and the like for non-pedantic builds.
8932 *) Support Borland C++ builder.
8933 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8938 *) SHA-1 cleanups and performance enhancements.
8939 [Andy Polyakov <appro@fy.chalmers.se>]
8941 *) Sparc v8plus assembler for the bignum library.
8942 [Andy Polyakov <appro@fy.chalmers.se>]
8944 *) Accept any -xxx and +xxx compiler options in Configure.
8947 *) Update HPUX configuration.
8950 *) Add missing sk_<type>_unshift() function to safestack.h
8951 [Ralf S. Engelschall]
8953 *) New function SSL_CTX_use_certificate_chain_file that sets the
8954 "extra_cert"s in addition to the certificate. (This makes sense
8955 only for "PEM" format files, as chains as a whole are not
8959 *) Support verify_depth from the SSL API.
8960 x509_vfy.c had what can be considered an off-by-one-error:
8961 Its depth (which was not part of the external interface)
8962 was actually counting the number of certificates in a chain;
8963 now it really counts the depth.
8966 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8967 instead of X509err, which often resulted in confusing error
8968 messages since the error codes are not globally unique
8969 (e.g. an alleged error in ssl3_accept when a certificate
8970 didn't match the private key).
8972 *) New function SSL_CTX_set_session_id_context that allows to set a default
8973 value (so that you don't need SSL_set_session_id_context for each
8974 connection using the SSL_CTX).
8977 *) OAEP decoding bug fix.
8980 *) Support INSTALL_PREFIX for package builders, as proposed by
8984 *) New Configure options "threads" and "no-threads". For systems
8985 where the proper compiler options are known (currently Solaris
8986 and Linux), "threads" is the default.
8989 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8992 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8993 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8994 such as /usr/local/bin.
8997 *) "make linux-shared" to build shared libraries.
8998 [Niels Poppe <niels@netbox.org>]
9000 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9003 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9004 extension adding in x509 utility.
9007 *) Remove NOPROTO sections and error code comments.
9010 *) Partial rewrite of the DEF file generator to now parse the ANSI
9014 *) New Configure options --prefix=DIR and --openssldir=DIR.
9017 *) Complete rewrite of the error code script(s). It is all now handled
9018 by one script at the top level which handles error code gathering,
9019 header rewriting and C source file generation. It should be much better
9020 than the old method: it now uses a modified version of Ulf's parser to
9021 read the ANSI prototypes in all header files (thus the old K&R definitions
9022 aren't needed for error creation any more) and do a better job of
9023 translating function codes into names. The old 'ASN1 error code imbedded
9024 in a comment' is no longer necessary and it doesn't use .err files which
9025 have now been deleted. Also the error code call doesn't have to appear all
9026 on one line (which resulted in some large lines...).
9029 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9032 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9033 0 (which usually indicates a closed connection), but continue reading.
9036 *) Fix some race conditions.
9039 *) Add support for CRL distribution points extension. Add Certificate
9040 Policies and CRL distribution points documentation.
9043 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9046 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9047 8 of keying material. Merlin has also confirmed interop with this fix
9048 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9049 [Merlin Hughes <merlin@baltimore.ie>]
9051 *) Fix lots of warnings.
9052 [Richard Levitte <levitte@stacken.kth.se>]
9054 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9055 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9056 [Richard Levitte <levitte@stacken.kth.se>]
9058 *) Fix problems with sizeof(long) == 8.
9059 [Andy Polyakov <appro@fy.chalmers.se>]
9061 *) Change functions to ANSI C.
9064 *) Fix typos in error codes.
9065 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9067 *) Remove defunct assembler files from Configure.
9070 *) SPARC v8 assembler BIGNUM implementation.
9071 [Andy Polyakov <appro@fy.chalmers.se>]
9073 *) Support for Certificate Policies extension: both print and set.
9074 Various additions to support the r2i method this uses.
9077 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9078 return a const string when you are expecting an allocated buffer.
9081 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9082 types DirectoryString and DisplayText.
9085 *) Add code to allow r2i extensions to access the configuration database,
9086 add an LHASH database driver and add several ctx helper functions.
9089 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9090 fail when they extended the size of a BIGNUM.
9093 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9094 support typesafe stack.
9097 *) Fix typo in SSL_[gs]et_options().
9098 [Nils Frostberg <nils@medcom.se>]
9100 *) Delete various functions and files that belonged to the (now obsolete)
9101 old X509V3 handling code.
9104 *) New Configure option "rsaref".
9107 *) Don't auto-generate pem.h.
9110 *) Introduce type-safe ASN.1 SETs.
9113 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9114 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9116 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9117 that links with OpenSSL (well at least cause lots of warnings), but fear
9118 not: the conversion is trivial, and it eliminates loads of evil casts. A
9119 few STACKed things have been converted already. Feel free to convert more.
9120 In the fullness of time, I'll do away with the STACK type altogether.
9123 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9124 specified in <certfile> by updating the entry in the index.txt file.
9125 This way one no longer has to edit the index.txt file manually for
9126 revoking a certificate. The -revoke option does the gory details now.
9127 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9129 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9130 `-text' option at all and this way the `-noout -text' combination was
9131 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9132 [Ralf S. Engelschall]
9134 *) Make sure a corresponding plain text error message exists for the
9135 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9136 verify callback function determined that a certificate was revoked.
9137 [Ralf S. Engelschall]
9139 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9140 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9141 all available cipers including rc5, which was forgotten until now.
9142 In order to let the testing shell script know which algorithms
9143 are available, a new (up to now undocumented) command
9144 "openssl list-cipher-commands" is used.
9147 *) Bugfix: s_client occasionally would sleep in select() when
9148 it should have checked SSL_pending() first.
9151 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9152 the raw DSA values prior to ASN.1 encoding.
9155 *) Tweaks to Configure
9156 [Niels Poppe <niels@netbox.org>]
9158 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9162 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9165 *) New config option to avoid instructions that are illegal on the 80386.
9166 The default code is faster, but requires at least a 486.
9169 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9170 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9171 same as SSL2_VERSION anyway.
9174 *) New "-showcerts" option for s_client.
9177 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9178 application. Various cleanups and fixes.
9181 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9182 modify error routines to work internally. Add error codes and PBE init
9183 to library startup routines.
9186 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9187 packing functions to asn1 and evp. Changed function names and error
9188 codes along the way.
9191 *) PKCS12 integration: and so it begins... First of several patches to
9192 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9193 objects to objects.h
9196 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9197 and display support for Thawte strong extranet extension.
9200 *) Add LinuxPPC support.
9201 [Jeff Dubrule <igor@pobox.org>]
9203 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9204 bn_div_words in alpha.s.
9205 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9207 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9208 OAEP isn't supported when OpenSSL is built with RSAref.
9209 [Ulf Moeller <ulf@fitug.de>]
9211 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9212 so they no longer are missing under -DNOPROTO.
9213 [Soren S. Jorvang <soren@t.dk>]
9216 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9218 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9219 doesn't work when the session is reused. Coming soon!
9222 *) Fix a security hole, that allows sessions to be reused in the wrong
9223 context thus bypassing client cert protection! All software that uses
9224 client certs and session caches in multiple contexts NEEDS PATCHING to
9225 allow session reuse! A fuller solution is in the works.
9226 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9228 *) Some more source tree cleanups (removed obsolete files
9229 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9230 permission on "config" script to be executable) and a fix for the INSTALL
9232 [Ulf Moeller <ulf@fitug.de>]
9234 *) Remove some legacy and erroneous uses of malloc, free instead of
9236 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9238 *) Make rsa_oaep_test return non-zero on error.
9239 [Ulf Moeller <ulf@fitug.de>]
9241 *) Add support for native Solaris shared libraries. Configure
9242 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9243 if someone would make that last step automatic.
9244 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9246 *) ctx_size was not built with the right compiler during "make links". Fixed.
9249 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9250 except NULL ciphers". This means the default cipher list will no longer
9251 enable NULL ciphers. They need to be specifically enabled e.g. with
9252 the string "DEFAULT:eNULL".
9255 *) Fix to RSA private encryption routines: if p < q then it would
9256 occasionally produce an invalid result. This will only happen with
9257 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9260 *) Be less restrictive and allow also `perl util/perlpath.pl
9261 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9262 because this way one can also use an interpreter named `perl5' (which is
9263 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9264 installed as `perl').
9265 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9267 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9268 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9270 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9271 advapi32.lib to Win32 build and change the pem test comparision
9272 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9273 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9274 and crypto/des/ede_cbcm_enc.c.
9277 *) DES quad checksum was broken on big-endian architectures. Fixed.
9280 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9281 Win32 test batch file so it (might) work again. The Win32 test batch file
9282 is horrible: I feel ill....
9285 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9286 in e_os.h. Audit of header files to check ANSI and non ANSI
9287 sections: 10 functions were absent from non ANSI section and not exported
9288 from Windows DLLs. Fixed up libeay.num for new functions.
9291 *) Make `openssl version' output lines consistent.
9292 [Ralf S. Engelschall]
9294 *) Fix Win32 symbol export lists for BIO functions: Added
9295 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9296 to ms/libeay{16,32}.def.
9297 [Ralf S. Engelschall]
9299 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9300 fine under Unix and passes some trivial tests I've now added. But the
9301 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9302 added to make sure no one expects that this stuff really works in the
9303 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9304 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9306 [Ralf S. Engelschall]
9308 *) Fix the generation of two part addresses in perl.
9309 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9311 *) Add config entry for Linux on MIPS.
9312 [John Tobey <jtobey@channel1.com>]
9314 *) Make links whenever Configure is run, unless we are on Windoze.
9317 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9318 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9322 *) Add a useful kludge to allow package maintainers to specify compiler and
9323 other platforms details on the command line without having to patch the
9324 Configure script everytime: One now can use ``perl Configure
9325 <id>:<details>'', i.e. platform ids are allowed to have details appended
9326 to them (seperated by colons). This is treated as there would be a static
9327 pre-configured entry in Configure's %table under key <id> with value
9328 <details> and ``perl Configure <id>'' is called. So, when you want to
9329 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9330 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9331 now, which overrides the FreeBSD-elf entry on-the-fly.
9332 [Ralf S. Engelschall]
9334 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9337 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9338 on the `perl Configure ...' command line. This way one can compile
9339 OpenSSL libraries with Position Independent Code (PIC) which is needed
9340 for linking it into DSOs.
9341 [Ralf S. Engelschall]
9343 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9347 *) Cleaned up the LICENSE document: The official contact for any license
9348 questions now is the OpenSSL core team under openssl-core@openssl.org.
9349 And add a paragraph about the dual-license situation to make sure people
9350 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9351 to the OpenSSL toolkit.
9352 [Ralf S. Engelschall]
9354 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9355 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9356 Additonally cleaned up the `make links' target: Remove unnecessary
9357 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9358 to speed processing and no longer clutter the display with confusing
9359 stuff. Instead only the actually done links are displayed.
9360 [Ralf S. Engelschall]
9362 *) Permit null encryption ciphersuites, used for authentication only. It used
9363 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9364 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9368 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9369 signed attributes when verifying signatures (this would break them),
9370 the detached data encoding was wrong and public keys obtained using
9371 X509_get_pubkey() weren't freed.
9374 *) Add text documentation for the BUFFER functions. Also added a work around
9375 to a Win95 console bug. This was triggered by the password read stuff: the
9376 last character typed gets carried over to the next fread(). If you were
9377 generating a new cert request using 'req' for example then the last
9378 character of the passphrase would be CR which would then enter the first
9382 *) Added the new `Includes OpenSSL Cryptography Software' button as
9383 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9384 button and can be used by applications based on OpenSSL to show the
9385 relationship to the OpenSSL project.
9386 [Ralf S. Engelschall]
9388 *) Remove confusing variables in function signatures in files
9389 ssl/ssl_lib.c and ssl/ssl.h.
9390 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9392 *) Don't install bss_file.c under PREFIX/include/
9393 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9395 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9396 functions that return function pointers and has support for NT specific
9397 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9398 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9399 unsigned to signed types: this was killing the Win32 compile.
9402 *) Add new certificate file to stack functions,
9403 SSL_add_dir_cert_subjects_to_stack() and
9404 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9405 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9406 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9407 This means that Apache-SSL and similar packages don't have to mess around
9408 to add as many CAs as they want to the preferred list.
9411 *) Experiment with doxygen documentation. Currently only partially applied to
9413 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9414 openssl.doxy as the configuration file.
9417 *) Get rid of remaining C++-style comments which strict C compilers hate.
9418 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9420 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9421 compiled in by default: it has problems with large keys.
9424 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9425 DH private keys and/or callback functions which directly correspond to
9426 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9427 is needed for applications which have to configure certificates on a
9428 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9430 For the RSA certificate situation is makes no difference, but
9431 for the DSA certificate situation this fixes the "no shared cipher"
9432 problem where the OpenSSL cipher selection procedure failed because the
9433 temporary keys were not overtaken from the context and the API provided
9434 no way to reconfigure them.
9435 The new functions now let applications reconfigure the stuff and they
9436 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9437 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9438 non-public-API function ssl_cert_instantiate() is used as a helper
9439 function and also to reduce code redundancy inside ssl_rsa.c.
9440 [Ralf S. Engelschall]
9442 *) Move s_server -dcert and -dkey options out of the undocumented feature
9443 area because they are useful for the DSA situation and should be
9444 recognized by the users.
9445 [Ralf S. Engelschall]
9447 *) Fix the cipher decision scheme for export ciphers: the export bits are
9448 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9449 SSL_EXP_MASK. So, the original variable has to be used instead of the
9450 already masked variable.
9451 [Richard Levitte <levitte@stacken.kth.se>]
9453 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9454 [Richard Levitte <levitte@stacken.kth.se>]
9456 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9457 from `int' to `unsigned int' because it's a length and initialized by
9458 EVP_DigestFinal() which expects an `unsigned int *'.
9459 [Richard Levitte <levitte@stacken.kth.se>]
9461 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9462 script. Instead use the usual Shell->Perl transition trick.
9463 [Ralf S. Engelschall]
9465 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9466 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9467 -noout -modulus' as it's already the case for `openssl rsa -noout
9468 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9469 currently the public key is printed (a decision which was already done by
9470 `openssl dsa -modulus' in the past) which serves a similar purpose.
9471 Additionally the NO_RSA no longer completely removes the whole -modulus
9472 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9474 [Ralf S. Engelschall]
9476 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9477 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9478 [Arne Ansper <arne@ats.cyber.ee>]
9480 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9481 to be added. Now both 'req' and 'ca' can use new objects defined in the
9485 *) Add cool BIO that does syslog (or event log on NT).
9486 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9488 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9489 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9490 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9491 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9494 *) Add preliminary config info for new extension code.
9497 *) Make RSA_NO_PADDING really use no padding.
9498 [Ulf Moeller <ulf@fitug.de>]
9500 *) Generate errors when private/public key check is done.
9503 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9504 for some CRL extensions and new objects added.
9507 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9508 key usage extension and fuller support for authority key id.
9511 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9512 padding method for RSA, which is recommended for new applications in PKCS
9513 #1 v2.0 (RFC 2437, October 1998).
9514 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9515 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9516 against Bleichbacher's attack on RSA.
9517 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9520 *) Updates to the new SSL compression code
9521 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9523 *) Fix so that the version number in the master secret, when passed
9524 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9525 (because the server will not accept higher), that the version number
9526 is 0x03,0x01, not 0x03,0x00
9527 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9529 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9530 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9531 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9534 *) Support for RAW extensions where an arbitrary extension can be
9535 created by including its DER encoding. See apps/openssl.cnf for
9539 *) Make sure latest Perl versions don't interpret some generated C array
9540 code as Perl array code in the crypto/err/err_genc.pl script.
9541 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9543 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9544 not many people have the assembler. Various Win32 compilation fixes and
9545 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9549 *) Modify configure script 'Configure' to automatically create crypto/date.h
9550 file under Win32 and also build pem.h from pem.org. New script
9551 util/mkfiles.pl to create the MINFO file on environments that can't do a
9552 'make files': perl util/mkfiles.pl >MINFO should work.
9555 *) Major rework of DES function declarations, in the pursuit of correctness
9556 and purity. As a result, many evil casts evaporated, and some weirdness,
9557 too. You may find this causes warnings in your code. Zapping your evil
9558 casts will probably fix them. Mostly.
9561 *) Fix for a typo in asn1.h. Bug fix to object creation script
9562 obj_dat.pl. It considered a zero in an object definition to mean
9563 "end of object": none of the objects in objects.h have any zeros
9564 so it wasn't spotted.
9565 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9567 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9568 Masking (CBCM). In the absence of test vectors, the best I have been able
9569 to do is check that the decrypt undoes the encrypt, so far. Send me test
9570 vectors if you have them.
9573 *) Correct calculation of key length for export ciphers (too much space was
9574 allocated for null ciphers). This has not been tested!
9577 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9578 message is now correct (it understands "crypto" and "ssl" on its
9579 command line). There is also now an "update" option. This will update
9580 the util/ssleay.num and util/libeay.num files with any new functions.
9582 perl util/mkdef.pl crypto ssl update
9583 it will update them.
9586 *) Overhauled the Perl interface (perl/*):
9587 - ported BN stuff to OpenSSL's different BN library
9588 - made the perl/ source tree CVS-aware
9589 - renamed the package from SSLeay to OpenSSL (the files still contain
9590 their history because I've copied them in the repository)
9591 - removed obsolete files (the test scripts will be replaced
9592 by better Test::Harness variants in the future)
9593 [Ralf S. Engelschall]
9595 *) First cut for a very conservative source tree cleanup:
9596 1. merge various obsolete readme texts into doc/ssleay.txt
9597 where we collect the old documents and readme texts.
9598 2. remove the first part of files where I'm already sure that we no
9599 longer need them because of three reasons: either they are just temporary
9600 files which were left by Eric or they are preserved original files where
9601 I've verified that the diff is also available in the CVS via "cvs diff
9602 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9603 the crypto/md/ stuff).
9604 [Ralf S. Engelschall]
9606 *) More extension code. Incomplete support for subject and issuer alt
9607 name, issuer and authority key id. Change the i2v function parameters
9608 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9609 what that's for :-) Fix to ASN1 macro which messed up
9610 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9613 *) Preliminary support for ENUMERATED type. This is largely copied from the
9617 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9618 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9620 *) Make sure `make rehash' target really finds the `openssl' program.
9621 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9623 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9624 like to hear about it if this slows down other processors.
9627 *) Add CygWin32 platform information to Configure script.
9628 [Alan Batie <batie@aahz.jf.intel.com>]
9630 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9631 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9633 *) New program nseq to manipulate netscape certificate sequences
9636 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9640 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9641 but the BN code had some problems that would cause failures when
9642 doing certificate verification and some other functions.
9643 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9645 *) Add ASN1 and PEM code to support netscape certificate sequences.
9648 *) Add ASN1 and PEM code to support netscape certificate sequences.
9651 *) Add several PKIX and private extended key usage OIDs.
9654 *) Modify the 'ca' program to handle the new extension code. Modify
9655 openssl.cnf for new extension format, add comments.
9658 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9659 and add a sample to openssl.cnf so req -x509 now adds appropriate
9663 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9664 error code, add initial support to X509_print() and x509 application.
9667 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9668 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9669 stuff is currently isolated and isn't even compiled yet.
9672 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9673 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9674 Removed the versions check from X509 routines when loading extensions:
9675 this allows certain broken certificates that don't set the version
9676 properly to be processed.
9679 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9680 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9681 can still be regenerated with "make depend".
9684 *) Spelling mistake in C version of CAST-128.
9685 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9687 *) Changes to the error generation code. The perl script err-code.pl
9688 now reads in the old error codes and retains the old numbers, only
9689 adding new ones if necessary. It also only changes the .err files if new
9690 codes are added. The makefiles have been modified to only insert errors
9691 when needed (to avoid needlessly modifying header files). This is done
9692 by only inserting errors if the .err file is newer than the auto generated
9693 C file. To rebuild all the error codes from scratch (the old behaviour)
9694 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9695 or delete all the .err files.
9698 *) CAST-128 was incorrectly implemented for short keys. The C version has
9699 been fixed, but is untested. The assembler versions are also fixed, but
9700 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9701 to regenerate it if needed.
9702 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9703 Hagino <itojun@kame.net>]
9705 *) File was opened incorrectly in randfile.c.
9706 [Ulf Möller <ulf@fitug.de>]
9708 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9709 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9710 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9711 al: it's just almost always a UTCTime. Note this patch adds new error
9712 codes so do a "make errors" if there are problems.
9715 *) Correct Linux 1 recognition in config.
9716 [Ulf Möller <ulf@fitug.de>]
9718 *) Remove pointless MD5 hash when using DSA keys in ca.
9719 [Anonymous <nobody@replay.com>]
9721 *) Generate an error if given an empty string as a cert directory. Also
9722 generate an error if handed NULL (previously returned 0 to indicate an
9723 error, but didn't set one).
9724 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9726 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9729 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9730 parameters. This was causing a warning which killed off the Win32 compile.
9733 *) Remove C++ style comments from crypto/bn/bn_local.h.
9734 [Neil Costigan <neil.costigan@celocom.com>]
9736 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9737 based on a text string, looking up short and long names and finally
9738 "dot" format. The "dot" format stuff didn't work. Added new function
9739 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9740 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9741 OID is not part of the table.
9744 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9745 X509_LOOKUP_by_alias().
9748 *) Sort openssl functions by name.
9751 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9752 encryption from sample DSA keys (in case anyone is interested the password
9756 *) Make _all_ *_free functions accept a NULL pointer.
9757 [Frans Heymans <fheymans@isaserver.be>]
9759 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9761 [Anonymous <nobody@replay.com>]
9763 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9764 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9766 *) Don't blow it for numeric -newkey arguments to apps/req.
9767 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9769 *) Temp key "for export" tests were wrong in s3_srvr.c.
9770 [Anonymous <nobody@replay.com>]
9772 *) Add prototype for temp key callback functions
9773 SSL_CTX_set_tmp_{rsa,dh}_callback().
9776 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9777 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9780 *) X509_name_add_entry() freed the wrong thing after an error.
9781 [Arne Ansper <arne@ats.cyber.ee>]
9783 *) rsa_eay.c would attempt to free a NULL context.
9784 [Arne Ansper <arne@ats.cyber.ee>]
9786 *) BIO_s_socket() had a broken should_retry() on Windoze.
9787 [Arne Ansper <arne@ats.cyber.ee>]
9789 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9790 [Arne Ansper <arne@ats.cyber.ee>]
9792 *) Make sure the already existing X509_STORE->depth variable is initialized
9793 in X509_STORE_new(), but document the fact that this variable is still
9794 unused in the certificate verification process.
9795 [Ralf S. Engelschall]
9797 *) Fix the various library and apps files to free up pkeys obtained from
9798 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9801 *) Fix reference counting in X509_PUBKEY_get(). This makes
9802 demos/maurice/example2.c work, amongst others, probably.
9803 [Steve Henson and Ben Laurie]
9805 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9806 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9807 are no longer created. This way we have a single and consistent command
9808 line interface `openssl <command>', similar to `cvs <command>'.
9809 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9811 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9812 BIT STRING wrapper always have zero unused bits.
9815 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9818 *) Make the top-level INSTALL documentation easier to understand.
9821 *) Makefiles updated to exit if an error occurs in a sub-directory
9822 make (including if user presses ^C) [Paul Sutton]
9824 *) Make Montgomery context stuff explicit in RSA data structure.
9827 *) Fix build order of pem and err to allow for generated pem.h.
9830 *) Fix renumbering bug in X509_NAME_delete_entry().
9833 *) Enhanced the err-ins.pl script so it makes the error library number
9834 global and can add a library name. This is needed for external ASN1 and
9835 other error libraries.
9838 *) Fixed sk_insert which never worked properly.
9841 *) Fix ASN1 macros so they can handle indefinite length construted
9842 EXPLICIT tags. Some non standard certificates use these: they can now
9846 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9847 into a single doc/ssleay.txt bundle. This way the information is still
9848 preserved but no longer messes up this directory. Now it's new room for
9849 the new set of documenation files.
9850 [Ralf S. Engelschall]
9852 *) SETs were incorrectly DER encoded. This was a major pain, because they
9853 shared code with SEQUENCEs, which aren't coded the same. This means that
9854 almost everything to do with SETs or SEQUENCEs has either changed name or
9855 number of arguments.
9856 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9858 *) Fix test data to work with the above.
9861 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9862 was already fixed by Eric for 0.9.1 it seems.
9863 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9865 *) Autodetect FreeBSD3.
9868 *) Fix various bugs in Configure. This affects the following platforms:
9872 unixware-2.0-pentium
9876 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9877 before they are needed.
9880 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9884 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9886 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9887 changed SSLeay to OpenSSL in version strings.
9888 [Ralf S. Engelschall]
9890 *) Some fixups to the top-level documents.
9893 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9894 because the symlink to include/ was missing.
9895 [Ralf S. Engelschall]
9897 *) Incorporated the popular no-RSA/DSA-only patches
9898 which allow to compile a RSA-free SSLeay.
9899 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9901 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9902 when "ssleay" is still not found.
9903 [Ralf S. Engelschall]
9905 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9906 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9908 *) Updated the README file.
9909 [Ralf S. Engelschall]
9911 *) Added various .cvsignore files in the CVS repository subdirs
9912 to make a "cvs update" really silent.
9913 [Ralf S. Engelschall]
9915 *) Recompiled the error-definition header files and added
9916 missing symbols to the Win32 linker tables.
9917 [Ralf S. Engelschall]
9919 *) Cleaned up the top-level documents;
9920 o new files: CHANGES and LICENSE
9921 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9922 o merged COPYRIGHT into LICENSE
9923 o removed obsolete TODO file
9924 o renamed MICROSOFT to INSTALL.W32
9925 [Ralf S. Engelschall]
9927 *) Removed dummy files from the 0.9.1b source tree:
9928 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9929 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9930 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9931 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9932 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9933 [Ralf S. Engelschall]
9935 *) Added various platform portability fixes.
9938 *) The Genesis of the OpenSSL rpject:
9939 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9940 Young and Tim J. Hudson created while they were working for C2Net until
9942 [The OpenSSL Project]
9945 Changes between 0.9.0b and 0.9.1b [not released]
9947 *) Updated a few CA certificates under certs/
9950 *) Changed some BIGNUM api stuff.
9953 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9954 DGUX x86, Linux Alpha, etc.
9957 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9958 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9962 *) Add -strparse option to asn1pars program which parses nested
9964 [Dr Stephen Henson <shenson@bigfoot.com>]
9966 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9969 *) DSA fix for "ca" program.
9972 *) Added "-genkey" option to "dsaparam" program.
9975 *) Added RIPE MD160 (rmd160) message digest.
9978 *) Added -a (all) option to "ssleay version" command.
9981 *) Added PLATFORM define which is the id given to Configure.
9984 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9987 *) Extended the ASN.1 parser routines.
9990 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9993 *) Added a BN_CTX to the BN library.
9996 *) Fixed the weak key values in DES library
9999 *) Changed API in EVP library for cipher aliases.
10002 *) Added support for RC2/64bit cipher.
10005 *) Converted the lhash library to the crypto/mem.c functions.
10008 *) Added more recognized ASN.1 object ids.
10011 *) Added more RSA padding checks for SSL/TLS.
10014 *) Added BIO proxy/filter functionality.
10017 *) Added extra_certs to SSL_CTX which can be used
10018 send extra CA certificates to the client in the CA cert chain sending
10019 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10022 *) Now Fortezza is denied in the authentication phase because
10023 this is key exchange mechanism is not supported by SSLeay at all.
10026 *) Additional PKCS1 checks.
10029 *) Support the string "TLSv1" for all TLS v1 ciphers.
10032 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10033 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10036 *) Fixed a few memory leaks.
10039 *) Fixed various code and comment typos.
10042 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10043 bytes sent in the client random.
10044 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob