5 Changes between 1.0.1 and 1.0.2 [xx XXX xxxx]
7 *) Support for linux-x32, ILP32 environment in x86_64 framework.
11 [Emilia Kasper, Adam Langley, Ben Laurie (Google)]
13 *) Experimental multi-implementation support for FIPS capable OpenSSL.
14 When in FIPS mode the approved implementations are used as normal,
15 when not in FIPS mode the internal unapproved versions are used instead.
16 This means that the FIPS capable OpenSSL isn't forced to use the
17 (often lower perfomance) FIPS implementations outside FIPS mode.
20 *) Transparently support X9.42 DH parameters when calling
21 PEM_read_bio_DHparameters. This means existing applications can handle
22 the new parameter format automatically.
25 *) Initial experimental support for X9.42 DH parameter format: mainly
26 to support use of 'q' parameter for RFC5114 parameters.
29 *) Add DH parameters from RFC5114 including test data to dhtest.
32 *) Support for automatic EC temporary key parameter selection. If enabled
33 the most preferred EC parameters are automatically used instead of
34 hardcoded fixed parameters. Now a server just has to call:
35 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
36 support ECDH and use the most appropriate parameters.
39 *) Enhance and tidy EC curve and point format TLS extension code. Use
40 static structures instead of allocation if default values are used.
41 New ctrls to set curves we wish to support and to retrieve shared curves.
42 Print out shared curves in s_server. New options to s_server and s_client
43 to set list of supported curves.
46 *) New ctrls to retrieve supported signature algorithms and
47 supported curve values as an array of NIDs. Extend openssl utility
48 to print out received values.
51 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
52 between NIDs and the more common NIST names such as "P-256". Enhance
53 ecparam utility and ECC method to recognise the NIST names for curves.
56 *) Enhance SSL/TLS certificate chain handling to support different
57 chains for each certificate instead of one chain in the parent SSL_CTX.
60 *) Support for fixed DH ciphersuite client authentication: where both
61 server and client use DH certificates with common parameters.
64 *) Support for fixed DH ciphersuites: those requiring DH server
68 Changes between 1.0.1c and 1.0.1d [xx XXX xxxx]
70 *) Fix possible deadlock when decoding public keys.
73 *) Don't use TLS 1.0 record version number in initial client hello
77 Changes between 1.0.1b and 1.0.1c [10 May 2012]
79 *) Sanity check record length before skipping explicit IV in TLS
80 1.2, 1.1 and DTLS to avoid DoS attack.
82 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
83 fuzzing as a service testing platform.
87 *) Initialise tkeylen properly when encrypting CMS messages.
88 Thanks to Solar Designer of Openwall for reporting this issue.
91 *) In FIPS mode don't try to use composite ciphers as they are not
95 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
97 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
98 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
99 mean any application compiled against OpenSSL 1.0.0 headers setting
100 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
101 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
102 0x10000000L Any application which was previously compiled against
103 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
104 will need to be recompiled as a result. Letting be results in
105 inability to disable specifically TLS 1.1 and in client context,
106 in unlike event, limit maximum offered version to TLS 1.0 [see below].
109 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
110 disable just protocol X, but all protocols above X *if* there are
111 protocols *below* X still enabled. In more practical terms it means
112 that if application wants to disable TLS1.0 in favor of TLS1.1 and
113 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
114 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
118 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
120 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
121 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
122 in CRYPTO_realloc_clean.
124 Thanks to Tavis Ormandy, Google Security Team, for discovering this
125 issue and to Adam Langley <agl@chromium.org> for fixing it.
127 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
129 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
132 *) Workarounds for some broken servers that "hang" if a client hello
133 record length exceeds 255 bytes:
135 1. Do not use record version number > TLS 1.0 in initial client
136 hello: some (but not all) hanging servers will now work.
137 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
138 the number of ciphers sent in the client hello. This should be
139 set to an even number, such as 50, for example by passing:
140 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
141 Most broken servers should now work.
142 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
143 TLS 1.2 client support entirely.
146 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
149 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
151 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
152 STRING form instead of a DigestInfo.
155 *) The format used for MDC2 RSA signatures is inconsistent between EVP
156 and the RSA_sign/RSA_verify functions. This was made more apparent when
157 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
158 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
159 the correct format in RSA_verify so both forms transparently work.
162 *) Some servers which support TLS 1.0 can choke if we initially indicate
163 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
164 encrypted premaster secret. As a workaround use the maximum pemitted
165 client version in client hello, this should keep such servers happy
166 and still work with previous versions of OpenSSL.
169 *) Add support for TLS/DTLS heartbeats.
170 [Robin Seggelmann <seggelmann@fh-muenster.de>]
172 *) Add support for SCTP.
173 [Robin Seggelmann <seggelmann@fh-muenster.de>]
175 *) Improved PRNG seeding for VOS.
176 [Paul Green <Paul.Green@stratus.com>]
178 *) Extensive assembler packs updates, most notably:
180 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
181 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
182 - x86_64: bit-sliced AES implementation;
183 - ARM: NEON support, contemporary platforms optimizations;
184 - s390x: z196 support;
185 - *: GHASH and GF(2^m) multiplication implementations;
189 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
190 (removal of unnecessary code)
191 [Peter Sylvester <peter.sylvester@edelweb.fr>]
193 *) Add TLS key material exporter from RFC 5705.
196 *) Add DTLS-SRTP negotiation from RFC 5764.
199 *) Add Next Protocol Negotiation,
200 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
201 disabled with a no-npn flag to config or Configure. Code donated
203 [Adam Langley <agl@google.com> and Ben Laurie]
205 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
206 NIST-P256, NIST-P521, with constant-time single point multiplication on
207 typical inputs. Compiler support for the nonstandard type __uint128_t is
208 required to use this (present in gcc 4.4 and later, for 64-bit builds).
209 Code made available under Apache License version 2.0.
211 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
212 line to include this in your build of OpenSSL, and run "make depend" (or
213 "make update"). This enables the following EC_METHODs:
215 EC_GFp_nistp224_method()
216 EC_GFp_nistp256_method()
217 EC_GFp_nistp521_method()
219 EC_GROUP_new_by_curve_name() will automatically use these (while
220 EC_GROUP_new_curve_GFp() currently prefers the more flexible
222 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
224 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
225 all platforms. Move ssize_t definition from e_os.h to the public
226 header file e_os2.h as it now appears in public header file cms.h
229 *) New -sigopt option to the ca, req and x509 utilities. Additional
230 signature parameters can be passed using this option and in
234 *) Add RSA PSS signing function. This will generate and set the
235 appropriate AlgorithmIdentifiers for PSS based on those in the
236 corresponding EVP_MD_CTX structure. No application support yet.
239 *) Support for companion algorithm specific ASN1 signing routines.
240 New function ASN1_item_sign_ctx() signs a pre-initialised
241 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
242 the appropriate parameters.
245 *) Add new algorithm specific ASN1 verification initialisation function
246 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
247 handling will be the same no matter what EVP_PKEY_METHOD is used.
248 Add a PSS handler to support verification of PSS signatures: checked
249 against a number of sample certificates.
252 *) Add signature printing for PSS. Add PSS OIDs.
253 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
255 *) Add algorithm specific signature printing. An individual ASN1 method
256 can now print out signatures instead of the standard hex dump.
258 More complex signatures (e.g. PSS) can print out more meaningful
259 information. Include DSA version that prints out the signature
263 *) Password based recipient info support for CMS library: implementing
267 *) Split password based encryption into PBES2 and PBKDF2 functions. This
268 neatly separates the code into cipher and PBE sections and is required
269 for some algorithms that split PBES2 into separate pieces (such as
273 *) Session-handling fixes:
274 - Fix handling of connections that are resuming with a session ID,
275 but also support Session Tickets.
276 - Fix a bug that suppressed issuing of a new ticket if the client
277 presented a ticket with an expired session.
278 - Try to set the ticket lifetime hint to something reasonable.
279 - Make tickets shorter by excluding irrelevant information.
280 - On the client side, don't ignore renewed tickets.
281 [Adam Langley, Bodo Moeller (Google)]
283 *) Fix PSK session representation.
286 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
288 This work was sponsored by Intel.
291 *) Add GCM support to TLS library. Some custom code is needed to split
292 the IV between the fixed (from PRF) and explicit (from TLS record)
293 portions. This adds all GCM ciphersuites supported by RFC5288 and
294 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
295 add a special AESGCM string for GCM only.
298 *) Expand range of ctrls for AES GCM. Permit setting invocation
299 field on decrypt and retrieval of invocation field only on encrypt.
302 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
303 As required by RFC5289 these ciphersuites cannot be used if for
304 versions of TLS earlier than 1.2.
307 *) For FIPS capable OpenSSL interpret a NULL default public key method
308 as unset and return the appopriate default but do *not* set the default.
309 This means we can return the appopriate method in applications that
310 swicth between FIPS and non-FIPS modes.
313 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
314 ENGINE is used then we cannot handle that in the FIPS module so we
315 keep original code iff non-FIPS operations are allowed.
318 *) Add -attime option to openssl utilities.
319 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
321 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
324 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
325 FIPS EC methods unconditionally for now.
328 *) New build option no-ec2m to disable characteristic 2 code.
331 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
332 all cases can be covered as some introduce binary incompatibilities.
335 *) Redirect RSA operations to FIPS module including keygen,
336 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
339 *) Add similar low level API blocking to ciphers.
342 *) Low level digest APIs are not approved in FIPS mode: any attempt
343 to use these will cause a fatal error. Applications that *really* want
344 to use them can use the private_* version instead.
347 *) Redirect cipher operations to FIPS module for FIPS builds.
350 *) Redirect digest operations to FIPS module for FIPS builds.
353 *) Update build system to add "fips" flag which will link in fipscanister.o
354 for static and shared library builds embedding a signature if needed.
357 *) Output TLS supported curves in preference order instead of numerical
358 order. This is currently hardcoded for the highest order curves first.
359 This should be configurable so applications can judge speed vs strength.
362 *) Add TLS v1.2 server support for client authentication.
365 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
369 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
370 FIPS modules versions.
373 *) Add TLS v1.2 client side support for client authentication. Keep cache
374 of handshake records longer as we don't know the hash algorithm to use
375 until after the certificate request message is received.
378 *) Initial TLS v1.2 client support. Add a default signature algorithms
379 extension including all the algorithms we support. Parse new signature
380 format in client key exchange. Relax some ECC signing restrictions for
381 TLS v1.2 as indicated in RFC5246.
384 *) Add server support for TLS v1.2 signature algorithms extension. Switch
385 to new signature format when needed using client digest preference.
386 All server ciphersuites should now work correctly in TLS v1.2. No client
387 support yet and no support for client certificates.
390 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
391 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
392 ciphersuites. At present only RSA key exchange ciphersuites work with
393 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
394 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
395 and version checking.
398 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
399 with this defined it will not be affected by any changes to ssl internal
400 structures. Add several utility functions to allow openssl application
401 to work with OPENSSL_NO_SSL_INTERN defined.
405 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
407 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
410 *) Permit abbreviated handshakes when renegotiating using the function
411 SSL_renegotiate_abbreviated().
412 [Robin Seggelmann <seggelmann@fh-muenster.de>]
414 *) Add call to ENGINE_register_all_complete() to
415 ENGINE_load_builtin_engines(), so some implementations get used
416 automatically instead of needing explicit application support.
419 *) Add support for TLS key exporter as described in RFC5705.
420 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
422 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
423 a few changes are required:
425 Add SSL_OP_NO_TLSv1_1 flag.
427 Update version checking logic to handle version 1.1.
428 Add explicit IV handling (ported from DTLS code).
429 Add command line options to s_client/s_server.
432 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
434 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
435 in CMS and PKCS7 code. When RSA decryption fails use a random key for
436 content decryption and always return the same error. Note: this attack
437 needs on average 2^20 messages so it only affects automated senders. The
438 old behaviour can be reenabled in the CMS code by setting the
439 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
440 an MMA defence is not necessary.
441 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
442 this issue. (CVE-2012-0884)
445 *) Fix CVE-2011-4619: make sure we really are receiving a
446 client hello before rejecting multiple SGC restarts. Thanks to
447 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
450 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
452 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
453 Thanks to Antonio Martin, Enterprise Secure Access Research and
454 Development, Cisco Systems, Inc. for discovering this bug and
455 preparing a fix. (CVE-2012-0050)
458 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
460 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
461 of the Vaudenay padding oracle attack on CBC mode encryption
462 which enables an efficient plaintext recovery attack against
463 the OpenSSL implementation of DTLS. Their attack exploits timing
464 differences arising during decryption processing. A research
465 paper describing this attack can be found at:
466 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
467 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
468 Security Group at Royal Holloway, University of London
469 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
470 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
471 for preparing the fix. (CVE-2011-4108)
472 [Robin Seggelmann, Michael Tuexen]
474 *) Clear bytes used for block padding of SSL 3.0 records.
476 [Adam Langley (Google)]
478 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
479 Kadianakis <desnacked@gmail.com> for discovering this issue and
480 Adam Langley for preparing the fix. (CVE-2011-4619)
481 [Adam Langley (Google)]
483 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
484 [Andrey Kulikov <amdeich@gmail.com>]
486 *) Prevent malformed RFC3779 data triggering an assertion failure.
487 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
488 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
489 [Rob Austein <sra@hactrn.net>]
491 *) Improved PRNG seeding for VOS.
492 [Paul Green <Paul.Green@stratus.com>]
494 *) Fix ssl_ciph.c set-up race.
495 [Adam Langley (Google)]
497 *) Fix spurious failures in ecdsatest.c.
498 [Emilia Käsper (Google)]
500 *) Fix the BIO_f_buffer() implementation (which was mixing different
501 interpretations of the '..._len' fields).
502 [Adam Langley (Google)]
504 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
505 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
506 threads won't reuse the same blinding coefficients.
508 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
509 lock to call BN_BLINDING_invert_ex, and avoids one use of
510 BN_BLINDING_update for each BN_BLINDING structure (previously,
511 the last update always remained unused).
512 [Emilia Käsper (Google)]
514 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
515 [Bob Buckholz (Google)]
517 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
519 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
520 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
521 [Kaspar Brand <ossl@velox.ch>]
523 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
524 for multi-threaded use of ECDH. (CVE-2011-3210)
525 [Adam Langley (Google)]
527 *) Fix x509_name_ex_d2i memory leak on bad inputs.
530 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
531 signature public key algorithm by using OID xref utilities instead.
532 Before this you could only use some ECC ciphersuites with SHA1 only.
535 *) Add protection against ECDSA timing attacks as mentioned in the paper
536 by Billy Bob Brumley and Nicola Tuveri, see:
538 http://eprint.iacr.org/2011/232.pdf
540 [Billy Bob Brumley and Nicola Tuveri]
542 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
544 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
545 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
547 *) Fix bug in string printing code: if *any* escaping is enabled we must
548 escape the escape character (backslash) or the resulting string is
552 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
554 *) Disable code workaround for ancient and obsolete Netscape browsers
555 and servers: an attacker can use it in a ciphersuite downgrade attack.
556 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
559 *) Fixed J-PAKE implementation error, originally discovered by
560 Sebastien Martini, further info and confirmation from Stefan
561 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
564 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
566 *) Fix extension code to avoid race conditions which can result in a buffer
567 overrun vulnerability: resumed sessions must not be modified as they can
568 be shared by multiple threads. CVE-2010-3864
571 *) Fix WIN32 build system to correctly link an ENGINE directory into
575 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
577 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
579 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
581 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
583 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
584 context. The operation can be customised via the ctrl mechanism in
585 case ENGINEs want to include additional functionality.
588 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
591 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
592 output hashes compatible with older versions of OpenSSL.
593 [Willy Weisz <weisz@vcpc.univie.ac.at>]
595 *) Fix compression algorithm handling: if resuming a session use the
596 compression algorithm of the resumed session instead of determining
597 it from client hello again. Don't allow server to change algorithm.
600 *) Add load_crls() function to apps tidying load_certs() too. Add option
601 to verify utility to allow additional CRLs to be included.
604 *) Update OCSP request code to permit adding custom headers to the request:
605 some responders need this.
608 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
610 [Julia Lawall <julia@diku.dk>]
612 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
613 needlessly dereferenced structures, used obsolete functions and
614 didn't handle all updated verify codes correctly.
617 *) Disable MD2 in the default configuration.
620 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
621 indicate the initial BIO being pushed or popped. This makes it possible
622 to determine whether the BIO is the one explicitly called or as a result
623 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
624 it handles reference counts correctly and doesn't zero out the I/O bio
625 when it is not being explicitly popped. WARNING: applications which
626 included workarounds for the old buggy behaviour will need to be modified
627 or they could free up already freed BIOs.
630 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
631 renaming to all platforms (within the 0.9.8 branch, this was
632 done conditionally on Netware platforms to avoid a name clash).
633 [Guenter <lists@gknw.net>]
635 *) Add ECDHE and PSK support to DTLS.
636 [Michael Tuexen <tuexen@fh-muenster.de>]
638 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
642 *) Add "missing" function EVP_MD_flags() (without this the only way to
643 retrieve a digest flags is by accessing the structure directly. Update
644 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
645 or cipher is registered as in the "from" argument. Print out all
646 registered digests in the dgst usage message instead of manually
647 attempting to work them out.
650 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
651 this allows the use of compression and extensions. Change default cipher
652 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
653 by default unless an application cipher string requests it.
656 *) Alter match criteria in PKCS12_parse(). It used to try to use local
657 key ids to find matching certificates and keys but some PKCS#12 files
658 don't follow the (somewhat unwritten) rules and this strategy fails.
659 Now just gather all certificates together and the first private key
660 then look for the first certificate that matches the key.
663 *) Support use of registered digest and cipher names for dgst and cipher
664 commands instead of having to add each one as a special case. So now
671 openssl dgst -sha256 foo
673 and this works for ENGINE based algorithms too.
677 *) Update Gost ENGINE to support parameter files.
678 [Victor B. Wagner <vitus@cryptocom.ru>]
680 *) Support GeneralizedTime in ca utility.
681 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
683 *) Enhance the hash format used for certificate directory links. The new
684 form uses the canonical encoding (meaning equivalent names will work
685 even if they aren't identical) and uses SHA1 instead of MD5. This form
686 is incompatible with the older format and as a result c_rehash should
687 be used to rebuild symbolic links.
690 *) Make PKCS#8 the default write format for private keys, replacing the
691 traditional format. This form is standardised, more secure and doesn't
692 include an implicit MD5 dependency.
695 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
696 committed to OpenSSL should pass this lot as a minimum.
699 *) Add session ticket override functionality for use by EAP-FAST.
700 [Jouni Malinen <j@w1.fi>]
702 *) Modify HMAC functions to return a value. Since these can be implemented
703 in an ENGINE errors can occur.
706 *) Type-checked OBJ_bsearch_ex.
709 *) Type-checked OBJ_bsearch. Also some constification necessitated
710 by type-checking. Still to come: TXT_DB, bsearch(?),
711 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
715 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
716 seconds to a tm structure directly, instead of going through OS
717 specific date routines. This avoids any issues with OS routines such
718 as the year 2038 bug. New *_adj() functions for ASN1 time structures
719 and X509_time_adj_ex() to cover the extended range. The existing
720 X509_time_adj() is still usable and will no longer have any date issues.
723 *) Delta CRL support. New use deltas option which will attempt to locate
724 and search any appropriate delta CRLs available.
726 This work was sponsored by Google.
729 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
730 code and add additional score elements. Validate alternate CRL paths
731 as part of the CRL checking and indicate a new error "CRL path validation
732 error" in this case. Applications wanting additional details can use
733 the verify callback and check the new "parent" field. If this is not
734 NULL CRL path validation is taking place. Existing applications wont
735 see this because it requires extended CRL support which is off by
738 This work was sponsored by Google.
741 *) Support for freshest CRL extension.
743 This work was sponsored by Google.
746 *) Initial indirect CRL support. Currently only supported in the CRLs
747 passed directly and not via lookup. Process certificate issuer
748 CRL entry extension and lookup CRL entries by bother issuer name
749 and serial number. Check and process CRL issuer entry in IDP extension.
751 This work was sponsored by Google.
754 *) Add support for distinct certificate and CRL paths. The CRL issuer
755 certificate is validated separately in this case. Only enabled if
756 an extended CRL support flag is set: this flag will enable additional
757 CRL functionality in future.
759 This work was sponsored by Google.
762 *) Add support for policy mappings extension.
764 This work was sponsored by Google.
767 *) Fixes to pathlength constraint, self issued certificate handling,
768 policy processing to align with RFC3280 and PKITS tests.
770 This work was sponsored by Google.
773 *) Support for name constraints certificate extension. DN, email, DNS
774 and URI types are currently supported.
776 This work was sponsored by Google.
779 *) To cater for systems that provide a pointer-based thread ID rather
780 than numeric, deprecate the current numeric thread ID mechanism and
781 replace it with a structure and associated callback type. This
782 mechanism allows a numeric "hash" to be extracted from a thread ID in
783 either case, and on platforms where pointers are larger than 'long',
784 mixing is done to help ensure the numeric 'hash' is usable even if it
785 can't be guaranteed unique. The default mechanism is to use "&errno"
786 as a pointer-based thread ID to distinguish between threads.
788 Applications that want to provide their own thread IDs should now use
789 CRYPTO_THREADID_set_callback() to register a callback that will call
790 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
792 Note that ERR_remove_state() is now deprecated, because it is tied
793 to the assumption that thread IDs are numeric. ERR_remove_state(0)
794 to free the current thread's error state should be replaced by
795 ERR_remove_thread_state(NULL).
797 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
798 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
799 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
800 application was previously providing a numeric thread callback that
801 was inappropriate for distinguishing threads, then uniqueness might
802 have been obtained with &errno that happened immediately in the
803 intermediate development versions of OpenSSL; this is no longer the
804 case, the numeric thread callback will now override the automatic use
806 [Geoff Thorpe, with help from Bodo Moeller]
808 *) Initial support for different CRL issuing certificates. This covers a
809 simple case where the self issued certificates in the chain exist and
810 the real CRL issuer is higher in the existing chain.
812 This work was sponsored by Google.
815 *) Removed effectively defunct crypto/store from the build.
818 *) Revamp of STACK to provide stronger type-checking. Still to come:
819 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
820 ASN1_STRING, CONF_VALUE.
823 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
824 RAM on SSL connections. This option can save about 34k per idle SSL.
827 *) Revamp of LHASH to provide stronger type-checking. Still to come:
828 STACK, TXT_DB, bsearch, qsort.
831 *) Initial support for Cryptographic Message Syntax (aka CMS) based
832 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
833 support for data, signedData, compressedData, digestedData and
834 encryptedData, envelopedData types included. Scripts to check against
835 RFC4134 examples draft and interop and consistency checks of many
836 content types and variants.
839 *) Add options to enc utility to support use of zlib compression BIO.
842 *) Extend mk1mf to support importing of options and assembly language
843 files from Configure script, currently only included in VC-WIN32.
844 The assembly language rules can now optionally generate the source
845 files from the associated perl scripts.
848 *) Implement remaining functionality needed to support GOST ciphersuites.
849 Interop testing has been performed using CryptoPro implementations.
850 [Victor B. Wagner <vitus@cryptocom.ru>]
852 *) s390x assembler pack.
855 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
859 *) Implement Opaque PRF Input TLS extension as specified in
860 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
861 official specification yet and no extension type assignment by
862 IANA exists, this extension (for now) will have to be explicitly
863 enabled when building OpenSSL by providing the extension number
864 to use. For example, specify an option
866 -DTLSEXT_TYPE_opaque_prf_input=0x9527
868 to the "config" or "Configure" script to enable the extension,
869 assuming extension number 0x9527 (which is a completely arbitrary
870 and unofficial assignment based on the MD5 hash of the Internet
871 Draft). Note that by doing so, you potentially lose
872 interoperability with other TLS implementations since these might
873 be using the same extension number for other purposes.
875 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
876 opaque PRF input value to use in the handshake. This will create
877 an interal copy of the length-'len' string at 'src', and will
878 return non-zero for success.
880 To get more control and flexibility, provide a callback function
883 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
884 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
888 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
891 Callback function 'cb' will be called in handshakes, and is
892 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
893 Argument 'arg' is for application purposes (the value as given to
894 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
895 be provided to the callback function). The callback function
896 has to return non-zero to report success: usually 1 to use opaque
897 PRF input just if possible, or 2 to enforce use of the opaque PRF
898 input. In the latter case, the library will abort the handshake
899 if opaque PRF input is not successfully negotiated.
901 Arguments 'peerinput' and 'len' given to the callback function
902 will always be NULL and 0 in the case of a client. A server will
903 see the client's opaque PRF input through these variables if
904 available (NULL and 0 otherwise). Note that if the server
905 provides an opaque PRF input, the length must be the same as the
906 length of the client's opaque PRF input.
908 Note that the callback function will only be called when creating
909 a new session (session resumption can resume whatever was
910 previously negotiated), and will not be called in SSL 2.0
911 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
912 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
913 for applications that need to enforce opaque PRF input.
917 *) Update ssl code to support digests other than SHA1+MD5 for handshake
920 [Victor B. Wagner <vitus@cryptocom.ru>]
922 *) Add RFC4507 support to OpenSSL. This includes the corrections in
923 RFC4507bis. The encrypted ticket format is an encrypted encoded
924 SSL_SESSION structure, that way new session features are automatically
927 If a client application caches session in an SSL_SESSION structure
928 support is transparent because tickets are now stored in the encoded
931 The SSL_CTX structure automatically generates keys for ticket
932 protection in servers so again support should be possible
933 with no application modification.
935 If a client or server wishes to disable RFC4507 support then the option
936 SSL_OP_NO_TICKET can be set.
938 Add a TLS extension debugging callback to allow the contents of any client
939 or server extensions to be examined.
941 This work was sponsored by Google.
944 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
945 OpenSSL should now compile cleanly on gcc 4.2
946 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
948 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
949 support including streaming MAC support: this is required for GOST
951 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
953 *) Add option -stream to use PKCS#7 streaming in smime utility. New
954 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
955 to output in BER and PEM format.
958 *) Experimental support for use of HMAC via EVP_PKEY interface. This
959 allows HMAC to be handled via the EVP_DigestSign*() interface. The
960 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
961 ENGINE support for HMAC keys which are unextractable. New -mac and
962 -macopt options to dgst utility.
965 *) New option -sigopt to dgst utility. Update dgst to use
966 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
967 alternative signing paramaters such as X9.31 or PSS in the dgst
971 *) Change ssl_cipher_apply_rule(), the internal function that does
972 the work each time a ciphersuite string requests enabling
973 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
974 removing ("!foo+bar") a class of ciphersuites: Now it maintains
975 the order of disabled ciphersuites such that those ciphersuites
976 that most recently went from enabled to disabled not only stay
977 in order with respect to each other, but also have higher priority
978 than other disabled ciphersuites the next time ciphersuites are
981 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
982 the same ciphersuites as with "HIGH" alone, but in a specific
983 order where the PSK ciphersuites come first (since they are the
984 most recently disabled ciphersuites when "HIGH" is parsed).
986 Also, change ssl_create_cipher_list() (using this new
987 funcionality) such that between otherwise identical
988 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
992 *) Change ssl_create_cipher_list() so that it automatically
993 arranges the ciphersuites in reasonable order before starting
994 to process the rule string. Thus, the definition for "DEFAULT"
995 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
996 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
997 This makes it much easier to arrive at a reasonable default order
998 in applications for which anonymous ciphers are OK (meaning
999 that you can't actually use DEFAULT).
1000 [Bodo Moeller; suggested by Victor Duchovni]
1002 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1003 processing) into multiple integers instead of setting
1004 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1005 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1006 (These masks as well as the individual bit definitions are hidden
1007 away into the non-exported interface ssl/ssl_locl.h, so this
1008 change to the definition of the SSL_CIPHER structure shouldn't
1009 affect applications.) This give us more bits for each of these
1010 categories, so there is no longer a need to coagulate AES128 and
1011 AES256 into a single algorithm bit, and to coagulate Camellia128
1012 and Camellia256 into a single algorithm bit, which has led to all
1015 Thus, among other things, the kludge introduced in 0.9.7m and
1016 0.9.8e for masking out AES256 independently of AES128 or masking
1017 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1019 With the change, we also introduce new ciphersuite aliases that
1020 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1024 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1025 Use the leftmost N bytes of the signature input if the input is
1026 larger than the prime q (with N being the size in bytes of q).
1029 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1030 it yet and it is largely untested.
1033 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1036 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1037 some compilers (gcc 4.2 and later) reject their use. Safestack is
1038 reimplemented. Update ASN1 to avoid use of legacy functions.
1041 *) Win32/64 targets are linked with Winsock2.
1044 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1045 to external functions. This can be used to increase CRL handling
1046 efficiency especially when CRLs are very large by (for example) storing
1047 the CRL revoked certificates in a database.
1050 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1051 new CRLs added to a directory can be used. New command line option
1052 -verify_return_error to s_client and s_server. This causes real errors
1053 to be returned by the verify callback instead of carrying on no matter
1054 what. This reflects the way a "real world" verify callback would behave.
1057 *) GOST engine, supporting several GOST algorithms and public key formats.
1058 Kindly donated by Cryptocom.
1061 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1062 partitioned by DP are handled but no indirect CRL or reason partitioning
1063 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1064 selected via a scoring technique which handles IDP and AKID in CRLs.
1067 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1068 will ultimately be used for all verify operations: this will remove the
1069 X509_STORE dependency on certificate verification and allow alternative
1070 lookup methods. X509_STORE based implementations of these two callbacks.
1073 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1074 Modify get_crl() to find a valid (unexpired) CRL if possible.
1077 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1078 this would be called X509_CRL_cmp() but that name is already used by
1079 a function that just compares CRL issuer names. Cache several CRL
1080 extensions in X509_CRL structure and cache CRLDP in X509.
1083 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1084 this maps equivalent X509_NAME structures into a consistent structure.
1085 Name comparison can then be performed rapidly using memcmp().
1088 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1092 *) Allow digests to supply their own micalg string for S/MIME type using
1093 the ctrl EVP_MD_CTRL_MICALG.
1096 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1097 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1098 ctrl. It can then customise the structure before and/or after signing
1102 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1103 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1104 to free up any added signature OIDs.
1107 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1108 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1109 digest and cipher tables. New options added to openssl utility:
1110 list-message-digest-algorithms and list-cipher-algorithms.
1113 *) Change the array representation of binary polynomials: the list
1114 of degrees of non-zero coefficients is now terminated with -1.
1115 Previously it was terminated with 0, which was also part of the
1116 value; thus, the array representation was not applicable to
1117 polynomials where t^0 has coefficient zero. This change makes
1118 the array representation useful in a more general context.
1121 *) Various modifications and fixes to SSL/TLS cipher string
1122 handling. For ECC, the code now distinguishes between fixed ECDH
1123 with RSA certificates on the one hand and with ECDSA certificates
1124 on the other hand, since these are separate ciphersuites. The
1125 unused code for Fortezza ciphersuites has been removed.
1127 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1128 (not "ECDHE"). For consistency with the code for DH
1129 certificates, use of ECDH certificates is now considered ECDH
1130 authentication, not RSA or ECDSA authentication (the latter is
1131 merely the CA's signing algorithm and not actively used in the
1134 The temporary ciphersuite alias "ECCdraft" is no longer
1135 available, and ECC ciphersuites are no longer excluded from "ALL"
1136 and "DEFAULT". The following aliases now exist for RFC 4492
1137 ciphersuites, most of these by analogy with the DH case:
1139 kECDHr - ECDH cert, signed with RSA
1140 kECDHe - ECDH cert, signed with ECDSA
1141 kECDH - ECDH cert (signed with either RSA or ECDSA)
1142 kEECDH - ephemeral ECDH
1143 ECDH - ECDH cert or ephemeral ECDH
1149 AECDH - anonymous ECDH
1150 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1154 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1155 Use correct micalg parameters depending on digest(s) in signed message.
1158 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1159 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1162 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1163 an engine to register a method. Add ENGINE lookups for methods and
1164 functional reference processing.
1167 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1168 EVP_{Sign,Verify}* which allow an application to customise the signature
1172 *) New -resign option to smime utility. This adds one or more signers
1173 to an existing PKCS#7 signedData structure. Also -md option to use an
1174 alternative message digest algorithm for signing.
1177 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1178 create PKCS7 structures containing multiple signers. Update smime
1179 application to support multiple signers.
1182 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1186 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1187 Reorganize PBE internals to lookup from a static table using NIDs,
1188 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1189 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1190 PRF which will be automatically used with PBES2.
1193 *) Replace the algorithm specific calls to generate keys in "req" with the
1197 *) Update PKCS#7 enveloped data routines to use new API. This is now
1198 supported by any public key method supporting the encrypt operation. A
1199 ctrl is added to allow the public key algorithm to examine or modify
1200 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1204 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1205 a default digest type to use. In most cases this will be SHA1 but some
1206 algorithms (such as GOST) need to specify an alternative digest. The
1207 return value indicates how strong the prefernce is 1 means optional and
1208 2 is mandatory (that is it is the only supported type). Modify
1209 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1210 use the default md. Update openssl utilities to use the default digest
1211 type for signing if it is not explicitly indicated.
1214 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1215 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1216 signing method from the key type. This effectively removes the link
1217 between digests and public key types.
1220 *) Add an OID cross reference table and utility functions. Its purpose is to
1221 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1222 rsaEncryption. This will allow some of the algorithm specific hackery
1223 needed to use the correct OID to be removed.
1226 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1227 structures for PKCS7_sign(). They are now set up by the relevant public
1231 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1234 *) Add support for key derivation (agreement) in the API, DH method and
1238 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1239 public and private key formats. As a side effect these add additional
1240 command line functionality not previously available: DSA signatures can be
1241 generated and verified using pkeyutl and DH key support and generation in
1246 [Oliver Tappe <zooey@hirschkaefer.de>]
1248 *) New make target "install_html_docs" installs HTML renditions of the
1250 [Oliver Tappe <zooey@hirschkaefer.de>]
1252 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1253 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1254 support key and parameter generation and add initial key generation
1255 functionality for RSA.
1258 *) Add functions for main EVP_PKEY_method operations. The undocumented
1259 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1260 EVP_PKEY_{encrypt,decrypt}_old.
1263 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1264 key API, doesn't do much yet.
1267 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1268 public key algorithms. New option to openssl utility:
1269 "list-public-key-algorithms" to print out info.
1272 *) Implement the Supported Elliptic Curves Extension for
1273 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1276 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1277 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1280 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1281 utilities such as rsa, dsa, dsaparam etc except they process any key
1285 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1286 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1287 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1291 *) Initial support for pluggable public key ASN1.
1292 De-spaghettify the public key ASN1 handling. Move public and private
1293 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1294 algorithm specific handling to a single module within the relevant
1295 algorithm directory. Add functions to allow (near) opaque processing
1296 of public and private key structures.
1299 *) Implement the Supported Point Formats Extension for
1300 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1303 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1304 for the psk identity [hint] and the psk callback functions to the
1305 SSL_SESSION, SSL and SSL_CTX structure.
1308 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1312 SSL_CTX_use_psk_identity_hint
1313 SSL_get_psk_identity_hint
1314 SSL_get_psk_identity
1315 SSL_use_psk_identity_hint
1317 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1319 *) Add RFC 3161 compliant time stamp request creation, response generation
1320 and response verification functionality.
1321 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1323 *) Add initial support for TLS extensions, specifically for the server_name
1324 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1325 have new members for a host name. The SSL data structure has an
1326 additional member SSL_CTX *initial_ctx so that new sessions can be
1327 stored in that context to allow for session resumption, even after the
1328 SSL has been switched to a new SSL_CTX in reaction to a client's
1329 server_name extension.
1331 New functions (subject to change):
1333 SSL_get_servername()
1334 SSL_get_servername_type()
1337 New CTRL codes and macros (subject to change):
1339 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1340 - SSL_CTX_set_tlsext_servername_callback()
1341 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1342 - SSL_CTX_set_tlsext_servername_arg()
1343 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1345 openssl s_client has a new '-servername ...' option.
1347 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1348 '-key2 ...', '-servername_fatal' (subject to change). This allows
1349 testing the HostName extension for a specific single host name ('-cert'
1350 and '-key' remain fallbacks for handshakes without HostName
1351 negotiation). If the unrecogninzed_name alert has to be sent, this by
1352 default is a warning; it becomes fatal with the '-servername_fatal'
1355 [Peter Sylvester, Remy Allais, Christophe Renou]
1357 *) Whirlpool hash implementation is added.
1360 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1361 bn(64,32). Because of instruction set limitations it doesn't have
1362 any negative impact on performance. This was done mostly in order
1363 to make it possible to share assembler modules, such as bn_mul_mont
1364 implementations, between 32- and 64-bit builds without hassle.
1367 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1368 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1372 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1373 dedicated Montgomery multiplication procedure, is introduced.
1374 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1375 "64-bit" performance on certain 32-bit targets.
1378 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1379 in SSL structures. New SSL ctrl to set maximum send fragment size.
1380 Save memory by seeting the I/O buffer sizes dynamically instead of
1381 using the maximum available value.
1384 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1385 in addition to the text details.
1388 *) Very, very preliminary EXPERIMENTAL support for printing of general
1389 ASN1 structures. This currently produces rather ugly output and doesn't
1390 handle several customised structures at all.
1393 *) Integrated support for PVK file format and some related formats such
1394 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1395 these in the 'rsa' and 'dsa' utilities.
1398 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1401 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1402 place for the (very old) "NETSCAPE" format certificates which are now
1403 handled using new ASN1 code equivalents.
1406 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1407 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1408 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1411 *) Modify CRL distribution points extension code to print out previously
1412 unsupported fields. Enhance extension setting code to allow setting of
1416 *) Add print and set support for Issuing Distribution Point CRL extension.
1419 *) Change 'Configure' script to enable Camellia by default.
1422 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1424 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1425 Thanks to Antonio Martin, Enterprise Secure Access Research and
1426 Development, Cisco Systems, Inc. for discovering this bug and
1427 preparing a fix. (CVE-2012-0050)
1430 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1432 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1433 of the Vaudenay padding oracle attack on CBC mode encryption
1434 which enables an efficient plaintext recovery attack against
1435 the OpenSSL implementation of DTLS. Their attack exploits timing
1436 differences arising during decryption processing. A research
1437 paper describing this attack can be found at:
1438 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1439 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1440 Security Group at Royal Holloway, University of London
1441 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1442 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1443 for preparing the fix. (CVE-2011-4108)
1444 [Robin Seggelmann, Michael Tuexen]
1446 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1447 [Ben Laurie, Kasper <ekasper@google.com>]
1449 *) Clear bytes used for block padding of SSL 3.0 records.
1451 [Adam Langley (Google)]
1453 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1454 Kadianakis <desnacked@gmail.com> for discovering this issue and
1455 Adam Langley for preparing the fix. (CVE-2011-4619)
1456 [Adam Langley (Google)]
1458 *) Prevent malformed RFC3779 data triggering an assertion failure.
1459 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1460 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1461 [Rob Austein <sra@hactrn.net>]
1463 *) Fix ssl_ciph.c set-up race.
1464 [Adam Langley (Google)]
1466 *) Fix spurious failures in ecdsatest.c.
1467 [Emilia Käsper (Google)]
1469 *) Fix the BIO_f_buffer() implementation (which was mixing different
1470 interpretations of the '..._len' fields).
1471 [Adam Langley (Google)]
1473 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1474 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1475 threads won't reuse the same blinding coefficients.
1477 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1478 lock to call BN_BLINDING_invert_ex, and avoids one use of
1479 BN_BLINDING_update for each BN_BLINDING structure (previously,
1480 the last update always remained unused).
1481 [Emilia Käsper (Google)]
1483 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1484 for multi-threaded use of ECDH.
1485 [Adam Langley (Google)]
1487 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1490 *) Add protection against ECDSA timing attacks as mentioned in the paper
1491 by Billy Bob Brumley and Nicola Tuveri, see:
1493 http://eprint.iacr.org/2011/232.pdf
1495 [Billy Bob Brumley and Nicola Tuveri]
1497 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1499 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1500 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1502 *) Fix bug in string printing code: if *any* escaping is enabled we must
1503 escape the escape character (backslash) or the resulting string is
1507 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1509 *) Disable code workaround for ancient and obsolete Netscape browsers
1510 and servers: an attacker can use it in a ciphersuite downgrade attack.
1511 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1514 *) Fixed J-PAKE implementation error, originally discovered by
1515 Sebastien Martini, further info and confirmation from Stefan
1516 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1519 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1521 *) Fix extension code to avoid race conditions which can result in a buffer
1522 overrun vulnerability: resumed sessions must not be modified as they can
1523 be shared by multiple threads. CVE-2010-3864
1526 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1529 *) Don't reencode certificate when calculating signature: cache and use
1530 the original encoding instead. This makes signature verification of
1531 some broken encodings work correctly.
1534 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1535 is also one of the inputs.
1536 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1538 *) Don't repeatedly append PBE algorithms to table if they already exist.
1539 Sort table on each new add. This effectively makes the table read only
1540 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1544 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1546 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1549 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1550 access or freeing data twice (CVE-2010-0742)
1551 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1553 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1554 common in certificates and some applications which only call
1555 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1559 Reduce copying into .apps and .test in makevms.com
1560 Don't try to use blank CA certificate in CA.com
1561 Allow use of C files from original directories in maketests.com
1562 [Steven M. Schweda" <sms@antinode.info>]
1564 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1566 *) When rejecting SSL/TLS records due to an incorrect version number, never
1567 update s->server with a new major version number. As of
1568 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1569 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1570 the previous behavior could result in a read attempt at NULL when
1571 receiving specific incorrect SSL/TLS records once record payload
1572 protection is active. (CVE-2010-0740)
1573 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1575 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1576 could be crashed if the relevant tables were not present (e.g. chrooted).
1577 [Tomas Hoger <thoger@redhat.com>]
1579 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1581 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1582 [Martin Olsson, Neel Mehta]
1584 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1585 accommodate for stack sorting, always a write lock!).
1588 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1589 excessive delays in the RAND_poll(): over a minute. As a workaround
1590 include a time check in the inner Heap32Next loop too.
1593 *) The code that handled flushing of data in SSL/TLS originally used the
1594 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1595 the problem outlined in PR#1949. The fix suggested there however can
1596 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1597 of Apache). So instead simplify the code to flush unconditionally.
1598 This should be fine since flushing with no data to flush is a no op.
1601 *) Handle TLS versions 2.0 and later properly and correctly use the
1602 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1603 off ancient servers have a habit of sticking around for a while...
1606 *) Modify compression code so it frees up structures without using the
1607 ex_data callbacks. This works around a problem where some applications
1608 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1609 restarting) then use compression (e.g. SSL with compression) later.
1610 This results in significant per-connection memory leaks and
1611 has caused some security issues including CVE-2008-1678 and
1615 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1616 change when encrypting or decrypting.
1619 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1620 connect and renegotiate with servers which do not support RI.
1621 Until RI is more widely deployed this option is enabled by default.
1624 *) Add "missing" ssl ctrls to clear options and mode.
1627 *) If client attempts to renegotiate and doesn't support RI respond with
1628 a no_renegotiation alert as required by RFC5746. Some renegotiating
1629 TLS clients will continue a connection gracefully when they receive
1630 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1631 waiting for a server hello which it will never receive. Now we treat a
1632 received no_renegotiation alert as a fatal error. This is because
1633 applications requesting a renegotiation might well expect it to succeed
1634 and would have no code in place to handle the server denying it so the
1635 only safe thing to do is to terminate the connection.
1638 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1639 peer supports secure renegotiation and 0 otherwise. Print out peer
1640 renegotiation support in s_client/s_server.
1643 *) Replace the highly broken and deprecated SPKAC certification method with
1644 the updated NID creation version. This should correctly handle UTF8.
1647 *) Implement RFC5746. Re-enable renegotiation but require the extension
1648 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1649 turns out to be a bad idea. It has been replaced by
1650 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1651 SSL_CTX_set_options(). This is really not recommended unless you
1652 know what you are doing.
1653 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1655 *) Fixes to stateless session resumption handling. Use initial_ctx when
1656 issuing and attempting to decrypt tickets in case it has changed during
1657 servername handling. Use a non-zero length session ID when attempting
1658 stateless session resumption: this makes it possible to determine if
1659 a resumption has occurred immediately after receiving server hello
1660 (several places in OpenSSL subtly assume this) instead of later in
1664 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1665 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1666 fixes for a few places where the return code is not checked
1668 [Julia Lawall <julia@diku.dk>]
1670 *) Add --strict-warnings option to Configure script to include devteam
1671 warnings in other configurations.
1674 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1675 makes it possible to install openssl libraries in locations which
1676 have names other than "lib", for example "/usr/lib64" which some
1678 [Steve Henson, based on patch from Jeremy Utley]
1680 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1681 X690 8.9.12 and can produce some misleading textual output of OIDs.
1682 [Steve Henson, reported by Dan Kaminsky]
1684 *) Delete MD2 from algorithm tables. This follows the recommendation in
1685 several standards that it is not used in new applications due to
1686 several cryptographic weaknesses. For binary compatibility reasons
1687 the MD2 API is still compiled in by default.
1690 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1694 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1695 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1697 [Guenter <lists@gknw.net>]
1699 *) Fix the server certificate chain building code to use X509_verify_cert(),
1700 it used to have an ad-hoc builder which was unable to cope with anything
1701 other than a simple chain.
1702 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1704 *) Don't check self signed certificate signatures in X509_verify_cert()
1705 by default (a flag can override this): it just wastes time without
1706 adding any security. As a useful side effect self signed root CAs
1707 with non-FIPS digests are now usable in FIPS mode.
1710 *) In dtls1_process_out_of_seq_message() the check if the current message
1711 is already buffered was missing. For every new message was memory
1712 allocated, allowing an attacker to perform an denial of service attack
1713 with sending out of seq handshake messages until there is no memory
1714 left. Additionally every future messege was buffered, even if the
1715 sequence number made no sense and would be part of another handshake.
1716 So only messages with sequence numbers less than 10 in advance will be
1717 buffered. (CVE-2009-1378)
1718 [Robin Seggelmann, discovered by Daniel Mentz]
1720 *) Records are buffered if they arrive with a future epoch to be
1721 processed after finishing the corresponding handshake. There is
1722 currently no limitation to this buffer allowing an attacker to perform
1723 a DOS attack with sending records with future epochs until there is no
1724 memory left. This patch adds the pqueue_size() function to detemine
1725 the size of a buffer and limits the record buffer to 100 entries.
1727 [Robin Seggelmann, discovered by Daniel Mentz]
1729 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1730 parent structure is freed. (CVE-2009-1379)
1733 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1734 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1737 [Ilya O. <vrghost@gmail.com>]
1739 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1741 *) Disable renegotiation completely - this fixes a severe security
1742 problem (CVE-2009-3555) at the cost of breaking all
1743 renegotiation. Renegotiation can be re-enabled by setting
1744 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1745 run-time. This is really not recommended unless you know what
1749 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1751 *) Don't set val to NULL when freeing up structures, it is freed up by
1752 underlying code. If sizeof(void *) > sizeof(long) this can result in
1753 zeroing past the valid field. (CVE-2009-0789)
1754 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1756 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1757 checked correctly. This would allow some invalid signed attributes to
1758 appear to verify correctly. (CVE-2009-0591)
1759 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1761 *) Reject UniversalString and BMPString types with invalid lengths. This
1762 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1763 a legal length. (CVE-2009-0590)
1766 *) Set S/MIME signing as the default purpose rather than setting it
1767 unconditionally. This allows applications to override it at the store
1771 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1772 to handle some structures.
1775 *) Improve efficiency of mem_gets: don't search whole buffer each time
1777 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1779 *) New -hex option for openssl rand.
1782 *) Print out UTF8String and NumericString when parsing ASN1.
1785 *) Support NumericString type for name components.
1788 *) Allow CC in the environment to override the automatically chosen
1789 compiler. Note that nothing is done to ensure flags work with the
1793 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1795 *) Properly check EVP_VerifyFinal() and similar return values
1797 [Ben Laurie, Bodo Moeller, Google Security Team]
1799 *) Enable TLS extensions by default.
1802 *) Allow the CHIL engine to be loaded, whether the application is
1803 multithreaded or not. (This does not release the developer from the
1804 obligation to set up the dynamic locking callbacks.)
1805 [Sander Temme <sander@temme.net>]
1807 *) Use correct exit code if there is an error in dgst command.
1808 [Steve Henson; problem pointed out by Roland Dirlewanger]
1810 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1811 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1814 *) Add experimental JPAKE support, including demo authentication in
1815 s_client and s_server.
1818 *) Set the comparison function in v3_addr_canonize().
1819 [Rob Austein <sra@hactrn.net>]
1821 *) Add support for XMPP STARTTLS in s_client.
1822 [Philip Paeps <philip@freebsd.org>]
1824 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1825 to ensure that even with this option, only ciphersuites in the
1826 server's preference list will be accepted. (Note that the option
1827 applies only when resuming a session, so the earlier behavior was
1828 just about the algorithm choice for symmetric cryptography.)
1831 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1833 *) Fix NULL pointer dereference if a DTLS server received
1834 ChangeCipherSpec as first record (CVE-2009-1386).
1837 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1838 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1841 *) The fix in 0.9.8c that supposedly got rid of unsafe
1842 double-checked locking was incomplete for RSA blinding,
1843 addressing just one layer of what turns out to have been
1844 doubly unsafe triple-checked locking.
1846 So now fix this for real by retiring the MONT_HELPER macro
1847 in crypto/rsa/rsa_eay.c.
1849 [Bodo Moeller; problem pointed out by Marius Schilder]
1851 *) Various precautionary measures:
1853 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1855 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1856 (NB: This would require knowledge of the secret session ticket key
1857 to exploit, in which case you'd be SOL either way.)
1859 - Change bn_nist.c so that it will properly handle input BIGNUMs
1860 outside the expected range.
1862 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1865 [Neel Mehta, Bodo Moeller]
1867 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1868 the load fails. Useful for distros.
1869 [Ben Laurie and the FreeBSD team]
1871 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1874 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1877 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1879 This work was sponsored by Logica.
1882 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1883 keystores. Support for SSL/TLS client authentication too.
1884 Not compiled unless enable-capieng specified to Configure.
1886 This work was sponsored by Logica.
1889 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1890 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1891 attribute creation routines such as certifcate requests and PKCS#12
1895 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1897 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1898 handshake which could lead to a cilent crash as found using the
1899 Codenomicon TLS test suite (CVE-2008-1672)
1900 [Steve Henson, Mark Cox]
1902 *) Fix double free in TLS server name extensions which could lead to
1903 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1906 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1908 Clear the error queue to ensure that error entries left from
1909 older function calls do not interfere with the correct operation.
1910 [Lutz Jaenicke, Erik de Castro Lopo]
1912 *) Remove root CA certificates of commercial CAs:
1914 The OpenSSL project does not recommend any specific CA and does not
1915 have any policy with respect to including or excluding any CA.
1916 Therefore it does not make any sense to ship an arbitrary selection
1917 of root CA certificates with the OpenSSL software.
1920 *) RSA OAEP patches to fix two separate invalid memory reads.
1921 The first one involves inputs when 'lzero' is greater than
1922 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1923 before the beginning of from). The second one involves inputs where
1924 the 'db' section contains nothing but zeroes (there is a one-byte
1925 invalid read after the end of 'db').
1926 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1928 *) Partial backport from 0.9.9-dev:
1930 Introduce bn_mul_mont (dedicated Montgomery multiplication
1931 procedure) as a candidate for BIGNUM assembler implementation.
1932 While 0.9.9-dev uses assembler for various architectures, only
1933 x86_64 is available by default here in the 0.9.8 branch, and
1934 32-bit x86 is available through a compile-time setting.
1936 To try the 32-bit x86 assembler implementation, use Configure
1937 option "enable-montasm" (which exists only for this backport).
1939 As "enable-montasm" for 32-bit x86 disclaims code stability
1940 anyway, in this constellation we activate additional code
1941 backported from 0.9.9-dev for further performance improvements,
1942 namely BN_from_montgomery_word. (To enable this otherwise,
1943 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1945 [Andy Polyakov (backport partially by Bodo Moeller)]
1947 *) Add TLS session ticket callback. This allows an application to set
1948 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1949 values. This is useful for key rollover for example where several key
1950 sets may exist with different names.
1953 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1954 This was broken until now in 0.9.8 releases, such that the only way
1955 a registered ENGINE could be used (assuming it initialises
1956 successfully on the host) was to explicitly set it as the default
1957 for the relevant algorithms. This is in contradiction with 0.9.7
1958 behaviour and the documentation. With this fix, when an ENGINE is
1959 registered into a given algorithm's table of implementations, the
1960 'uptodate' flag is reset so that auto-discovery will be used next
1961 time a new context for that algorithm attempts to select an
1963 [Ian Lister (tweaked by Geoff Thorpe)]
1965 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1966 implemention in the following ways:
1968 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1971 Lack of BER streaming support means one pass streaming processing is
1972 only supported if data is detached: setting the streaming flag is
1973 ignored for embedded content.
1975 CMS support is disabled by default and must be explicitly enabled
1976 with the enable-cms configuration option.
1979 *) Update the GMP engine glue to do direct copies between BIGNUM and
1980 mpz_t when openssl and GMP use the same limb size. Otherwise the
1981 existing "conversion via a text string export" trick is still used.
1982 [Paul Sheer <paulsheer@gmail.com>]
1984 *) Zlib compression BIO. This is a filter BIO which compressed and
1985 uncompresses any data passed through it.
1988 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1989 RFC3394 compatible AES key wrapping.
1992 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1993 sets string data without copying. X509_ALGOR_set0() and
1994 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1995 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1996 from an X509_ATTRIBUTE structure optionally checking it occurs only
1997 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2001 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2002 to get the expected BN_FLG_CONSTTIME behavior.
2003 [Bodo Moeller (Google)]
2007 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2008 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2009 - added some more tests to do_tests.pl
2010 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2011 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2012 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2013 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2014 - various changes to netware.pl to enable gcc-cross builds on Win32
2016 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2017 - various changes to fix missing prototype warnings
2018 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2019 - added AES, WHIRLPOOL and CPUID assembler code to build files
2020 - added missing AES assembler make rules to mk1mf.pl
2021 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2022 [Guenter Knauf <eflash@gmx.net>]
2024 *) Implement certificate status request TLS extension defined in RFC3546.
2025 A client can set the appropriate parameters and receive the encoded
2026 OCSP response via a callback. A server can query the supplied parameters
2027 and set the encoded OCSP response in the callback. Add simplified examples
2028 to s_client and s_server.
2031 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2033 *) Fix various bugs:
2034 + Binary incompatibility of ssl_ctx_st structure
2035 + DTLS interoperation with non-compliant servers
2036 + Don't call get_session_cb() without proposed session
2037 + Fix ia64 assembler code
2038 [Andy Polyakov, Steve Henson]
2040 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2042 *) DTLS Handshake overhaul. There were longstanding issues with
2043 OpenSSL DTLS implementation, which were making it impossible for
2044 RFC 4347 compliant client to communicate with OpenSSL server.
2045 Unfortunately just fixing these incompatibilities would "cut off"
2046 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2047 server keeps tolerating non RFC compliant syntax. The opposite is
2048 not true, 0.9.8f client can not communicate with earlier server.
2049 This update even addresses CVE-2007-4995.
2052 *) Changes to avoid need for function casts in OpenSSL: some compilers
2053 (gcc 4.2 and later) reject their use.
2054 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2057 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2058 RFC4507bis. The encrypted ticket format is an encrypted encoded
2059 SSL_SESSION structure, that way new session features are automatically
2062 If a client application caches session in an SSL_SESSION structure
2063 support is transparent because tickets are now stored in the encoded
2066 The SSL_CTX structure automatically generates keys for ticket
2067 protection in servers so again support should be possible
2068 with no application modification.
2070 If a client or server wishes to disable RFC4507 support then the option
2071 SSL_OP_NO_TICKET can be set.
2073 Add a TLS extension debugging callback to allow the contents of any client
2074 or server extensions to be examined.
2076 This work was sponsored by Google.
2079 *) Add initial support for TLS extensions, specifically for the server_name
2080 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2081 have new members for a host name. The SSL data structure has an
2082 additional member SSL_CTX *initial_ctx so that new sessions can be
2083 stored in that context to allow for session resumption, even after the
2084 SSL has been switched to a new SSL_CTX in reaction to a client's
2085 server_name extension.
2087 New functions (subject to change):
2089 SSL_get_servername()
2090 SSL_get_servername_type()
2093 New CTRL codes and macros (subject to change):
2095 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2096 - SSL_CTX_set_tlsext_servername_callback()
2097 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2098 - SSL_CTX_set_tlsext_servername_arg()
2099 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2101 openssl s_client has a new '-servername ...' option.
2103 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2104 '-key2 ...', '-servername_fatal' (subject to change). This allows
2105 testing the HostName extension for a specific single host name ('-cert'
2106 and '-key' remain fallbacks for handshakes without HostName
2107 negotiation). If the unrecogninzed_name alert has to be sent, this by
2108 default is a warning; it becomes fatal with the '-servername_fatal'
2111 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2113 *) Add AES and SSE2 assembly language support to VC++ build.
2116 *) Mitigate attack on final subtraction in Montgomery reduction.
2119 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2120 (which previously caused an internal error).
2123 *) Squeeze another 10% out of IGE mode when in != out.
2126 *) AES IGE mode speedup.
2127 [Dean Gaudet (Google)]
2129 *) Add the Korean symmetric 128-bit cipher SEED (see
2130 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2131 add SEED ciphersuites from RFC 4162:
2133 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2134 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2135 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2136 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2138 To minimize changes between patchlevels in the OpenSSL 0.9.8
2139 series, SEED remains excluded from compilation unless OpenSSL
2140 is configured with 'enable-seed'.
2141 [KISA, Bodo Moeller]
2143 *) Mitigate branch prediction attacks, which can be practical if a
2144 single processor is shared, allowing a spy process to extract
2145 information. For detailed background information, see
2146 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2147 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2148 and Necessary Software Countermeasures"). The core of the change
2149 are new versions BN_div_no_branch() and
2150 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2151 respectively, which are slower, but avoid the security-relevant
2152 conditional branches. These are automatically called by BN_div()
2153 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2154 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2155 remove a conditional branch.
2157 BN_FLG_CONSTTIME is the new name for the previous
2158 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2159 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2160 in the exponent causes BN_mod_exp_mont() to use the alternative
2161 implementation in BN_mod_exp_mont_consttime().) The old name
2162 remains as a deprecated alias.
2164 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2165 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2166 constant-time implementations for more than just exponentiation.
2167 Here too the old name is kept as a deprecated alias.
2169 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2170 the BN_BLINDING structure gets an independent copy of the
2171 modulus. This means that the previous "BIGNUM *m" argument to
2172 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2173 essentially becomes "const BIGNUM *m", although we can't actually
2174 change this in the header file before 0.9.9. It allows
2175 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2176 enable BN_FLG_CONSTTIME.
2178 [Matthew D Wood (Intel Corp)]
2180 *) In the SSL/TLS server implementation, be strict about session ID
2181 context matching (which matters if an application uses a single
2182 external cache for different purposes). Previously,
2183 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2184 set. This did ensure strict client verification, but meant that,
2185 with applications using a single external cache for quite
2186 different requirements, clients could circumvent ciphersuite
2187 restrictions for a given session ID context by starting a session
2188 in a different context.
2191 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2192 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2193 authentication-only ciphersuites.
2196 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2197 not complete and could lead to a possible single byte overflow
2198 (CVE-2007-5135) [Ben Laurie]
2200 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2202 *) Since AES128 and AES256 (and similarly Camellia128 and
2203 Camellia256) share a single mask bit in the logic of
2204 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2205 kludge to work properly if AES128 is available and AES256 isn't
2206 (or if Camellia128 is available and Camellia256 isn't).
2209 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2210 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2211 When a point or a seed is encoded in a BIT STRING, we need to
2212 prevent the removal of trailing zero bits to get the proper DER
2213 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2214 of a NamedBitList, for which trailing 0 bits need to be removed.)
2217 *) Have SSL/TLS server implementation tolerate "mismatched" record
2218 protocol version while receiving ClientHello even if the
2219 ClientHello is fragmented. (The server can't insist on the
2220 particular protocol version it has chosen before the ServerHello
2221 message has informed the client about his choice.)
2224 *) Add RFC 3779 support.
2225 [Rob Austein for ARIN, Ben Laurie]
2227 *) Load error codes if they are not already present instead of using a
2228 static variable. This allows them to be cleanly unloaded and reloaded.
2229 Improve header file function name parsing.
2232 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2233 or CAPABILITY handshake as required by RFCs.
2236 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2238 *) Introduce limits to prevent malicious keys being able to
2239 cause a denial of service. (CVE-2006-2940)
2240 [Steve Henson, Bodo Moeller]
2242 *) Fix ASN.1 parsing of certain invalid structures that can result
2243 in a denial of service. (CVE-2006-2937) [Steve Henson]
2245 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2246 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2248 *) Fix SSL client code which could crash if connecting to a
2249 malicious SSLv2 server. (CVE-2006-4343)
2250 [Tavis Ormandy and Will Drewry, Google Security Team]
2252 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2253 match only those. Before that, "AES256-SHA" would be interpreted
2254 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2255 the same strength classification in 0.9.7h) as we currently only
2256 have a single AES bit in the ciphersuite description bitmap.
2257 That change, however, also applied to ciphersuite strings such as
2258 "RC4-MD5" that intentionally matched multiple ciphersuites --
2259 namely, SSL 2.0 ciphersuites in addition to the more common ones
2260 from SSL 3.0/TLS 1.0.
2262 So we change the selection algorithm again: Naming an explicit
2263 ciphersuite selects this one ciphersuite, and any other similar
2264 ciphersuite (same bitmap) from *other* protocol versions.
2265 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2266 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2268 Since SSL 2.0 does not have any ciphersuites for which the
2269 128/256 bit distinction would be relevant, this works for now.
2270 The proper fix will be to use different bits for AES128 and
2271 AES256, which would have avoided the problems from the beginning;
2272 however, bits are scarce, so we can only do this in a new release
2273 (not just a patchlevel) when we can change the SSL_CIPHER
2274 definition to split the single 'unsigned long mask' bitmap into
2275 multiple values to extend the available space.
2279 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2281 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2282 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2284 *) Add AES IGE and biIGE modes.
2287 *) Change the Unix randomness entropy gathering to use poll() when
2288 possible instead of select(), since the latter has some
2289 undesirable limitations.
2290 [Darryl Miles via Richard Levitte and Bodo Moeller]
2292 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2293 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2294 cannot be implicitly activated as part of, e.g., the "AES" alias.
2295 However, please upgrade to OpenSSL 0.9.9[-dev] for
2296 non-experimental use of the ECC ciphersuites to get TLS extension
2297 support, which is required for curve and point format negotiation
2298 to avoid potential handshake problems.
2301 *) Disable rogue ciphersuites:
2303 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2304 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2305 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2307 The latter two were purportedly from
2308 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2311 Also deactivate the remaining ciphersuites from
2312 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2313 unofficial, and the ID has long expired.
2316 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2317 dual-core machines) and other potential thread-safety issues.
2320 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2321 versions), which is now available for royalty-free use
2322 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2323 Also, add Camellia TLS ciphersuites from RFC 4132.
2325 To minimize changes between patchlevels in the OpenSSL 0.9.8
2326 series, Camellia remains excluded from compilation unless OpenSSL
2327 is configured with 'enable-camellia'.
2330 *) Disable the padding bug check when compression is in use. The padding
2331 bug check assumes the first packet is of even length, this is not
2332 necessarily true if compresssion is enabled and can result in false
2333 positives causing handshake failure. The actual bug test is ancient
2334 code so it is hoped that implementations will either have fixed it by
2335 now or any which still have the bug do not support compression.
2338 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2340 *) When applying a cipher rule check to see if string match is an explicit
2341 cipher suite and only match that one cipher suite if it is.
2344 *) Link in manifests for VC++ if needed.
2345 [Austin Ziegler <halostatue@gmail.com>]
2347 *) Update support for ECC-based TLS ciphersuites according to
2348 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2349 TLS extensions, which are supported starting with the 0.9.9
2350 branch, not in the OpenSSL 0.9.8 branch).
2353 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2354 opaque EVP_CIPHER_CTX handling.
2357 *) Fixes and enhancements to zlib compression code. We now only use
2358 "zlib1.dll" and use the default __cdecl calling convention on Win32
2359 to conform with the standards mentioned here:
2360 http://www.zlib.net/DLL_FAQ.txt
2361 Static zlib linking now works on Windows and the new --with-zlib-include
2362 --with-zlib-lib options to Configure can be used to supply the location
2363 of the headers and library. Gracefully handle case where zlib library
2367 *) Several fixes and enhancements to the OID generation code. The old code
2368 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2369 handle numbers larger than ULONG_MAX, truncated printing and had a
2370 non standard OBJ_obj2txt() behaviour.
2373 *) Add support for building of engines under engine/ as shared libraries
2374 under VC++ build system.
2377 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2378 Hopefully, we will not see any false combination of paths any more.
2381 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2383 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2384 (part of SSL_OP_ALL). This option used to disable the
2385 countermeasure against man-in-the-middle protocol-version
2386 rollback in the SSL 2.0 server implementation, which is a bad
2387 idea. (CVE-2005-2969)
2389 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2390 for Information Security, National Institute of Advanced Industrial
2391 Science and Technology [AIST], Japan)]
2393 *) Add two function to clear and return the verify parameter flags.
2396 *) Keep cipherlists sorted in the source instead of sorting them at
2397 runtime, thus removing the need for a lock.
2400 *) Avoid some small subgroup attacks in Diffie-Hellman.
2401 [Nick Mathewson and Ben Laurie]
2403 *) Add functions for well-known primes.
2406 *) Extended Windows CE support.
2407 [Satoshi Nakamura and Andy Polyakov]
2409 *) Initialize SSL_METHOD structures at compile time instead of during
2410 runtime, thus removing the need for a lock.
2413 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2414 attempting to decrypt each encrypted key in turn. Add support to
2418 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2420 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2423 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2426 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2427 key into the same file any more.
2430 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2433 *) Add -utf8 command line and config file option to 'ca'.
2434 [Stefan <stf@udoma.org]
2436 *) Removed the macro des_crypt(), as it seems to conflict with some
2437 libraries. Use DES_crypt().
2440 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2441 involves renaming the source and generated shared-libs for
2442 both. The engines will accept the corrected or legacy ids
2443 ('ncipher' and '4758_cca' respectively) when binding. NB,
2444 this only applies when building 'shared'.
2445 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2447 *) Add attribute functions to EVP_PKEY structure. Modify
2448 PKCS12_create() to recognize a CSP name attribute and
2449 use it. Make -CSP option work again in pkcs12 utility.
2452 *) Add new functionality to the bn blinding code:
2453 - automatic re-creation of the BN_BLINDING parameters after
2454 a fixed number of uses (currently 32)
2455 - add new function for parameter creation
2456 - introduce flags to control the update behaviour of the
2457 BN_BLINDING parameters
2458 - hide BN_BLINDING structure
2459 Add a second BN_BLINDING slot to the RSA structure to improve
2460 performance when a single RSA object is shared among several
2464 *) Add support for DTLS.
2465 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2467 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2468 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2471 *) Remove buggy and incompletet DH cert support from
2472 ssl/ssl_rsa.c and ssl/s3_both.c
2475 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2476 the apps/openssl applications.
2479 *) Compile clean with "-Wall -Wmissing-prototypes
2480 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2481 DEBUG_SAFESTACK must also be set.
2484 *) Change ./Configure so that certain algorithms can be disabled by default.
2485 The new counterpiece to "no-xxx" is "enable-xxx".
2487 The patented RC5 and MDC2 algorithms will now be disabled unless
2488 "enable-rc5" and "enable-mdc2", respectively, are specified.
2490 (IDEA remains enabled despite being patented. This is because IDEA
2491 is frequently required for interoperability, and there is no license
2492 fee for non-commercial use. As before, "no-idea" can be used to
2493 avoid this algorithm.)
2497 *) Add processing of proxy certificates (see RFC 3820). This work was
2498 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2499 EGEE (Enabling Grids for E-science in Europe).
2502 *) RC4 performance overhaul on modern architectures/implementations, such
2503 as Intel P4, IA-64 and AMD64.
2506 *) New utility extract-section.pl. This can be used specify an alternative
2507 section number in a pod file instead of having to treat each file as
2508 a separate case in Makefile. This can be done by adding two lines to the
2511 =for comment openssl_section:XXX
2513 The blank line is mandatory.
2517 *) New arguments -certform, -keyform and -pass for s_client and s_server
2518 to allow alternative format key and certificate files and passphrase
2522 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2523 update associated structures and add various utility functions.
2525 Add new policy related verify parameters, include policy checking in
2526 standard verify code. Enhance 'smime' application with extra parameters
2527 to support policy checking and print out.
2530 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2531 Nehemiah processors. These extensions support AES encryption in hardware
2532 as well as RNG (though RNG support is currently disabled).
2533 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2535 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2538 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2539 [Andy Polyakov and a number of other people]
2541 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2542 implementation contributed by IBM.
2543 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2545 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2546 exponent rather than 'unsigned long'. There is a corresponding change to
2547 the new 'rsa_keygen' element of the RSA_METHOD structure.
2548 [Jelte Jansen, Geoff Thorpe]
2550 *) Functionality for creating the initial serial number file is now
2551 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2553 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2554 number file to 1, which is bound to cause problems. To avoid
2555 the problems while respecting compatibility between different 0.9.7
2556 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2557 CA.pl for serial number initialization. With the new release 0.9.8,
2558 we can fix the problem directly in the 'ca' utility.)
2561 *) Reduced header interdepencies by declaring more opaque objects in
2562 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2563 give fewer recursive includes, which could break lazy source code - so
2564 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2565 developers should define this symbol when building and using openssl to
2566 ensure they track the recommended behaviour, interfaces, [etc], but
2567 backwards-compatible behaviour prevails when this isn't defined.
2570 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2573 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2574 This will generate a random key of the appropriate length based on the
2575 cipher context. The EVP_CIPHER can provide its own random key generation
2576 routine to support keys of a specific form. This is used in the des and
2577 3des routines to generate a key of the correct parity. Update S/MIME
2578 code to use new functions and hence generate correct parity DES keys.
2579 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2580 valid (weak or incorrect parity).
2583 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2584 as looking them up. This is useful when the verified structure may contain
2585 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2586 present unless the new PKCS7_NO_CRL flag is asserted.
2589 *) Extend ASN1 oid configuration module. It now additionally accepts the
2592 shortName = some long name, 1.2.3.4
2595 *) Reimplemented the BN_CTX implementation. There is now no more static
2596 limitation on the number of variables it can handle nor the depth of the
2597 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2598 information can now expand as required, and rather than having a single
2599 static array of bignums, BN_CTX now uses a linked-list of such arrays
2600 allowing it to expand on demand whilst maintaining the usefulness of
2601 BN_CTX's "bundling".
2604 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2605 to allow all RSA operations to function using a single BN_CTX.
2608 *) Preliminary support for certificate policy evaluation and checking. This
2609 is initially intended to pass the tests outlined in "Conformance Testing
2610 of Relying Party Client Certificate Path Processing Logic" v1.07.
2613 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2614 remained unused and not that useful. A variety of other little bignum
2615 tweaks and fixes have also been made continuing on from the audit (see
2619 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2620 associated ASN1, EVP and SSL functions and old ASN1 macros.
2623 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2624 and this should never fail. So the return value from the use of
2625 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2626 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2629 *) BN_CTX_get() should return zero-valued bignums, providing the same
2630 initialised value as BN_new().
2631 [Geoff Thorpe, suggested by Ulf Möller]
2633 *) Support for inhibitAnyPolicy certificate extension.
2636 *) An audit of the BIGNUM code is underway, for which debugging code is
2637 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2638 is considered valid when processing BIGNUMs, and causes execution to
2639 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2640 further steps are taken to deliberately pollute unused data in BIGNUM
2641 structures to try and expose faulty code further on. For now, openssl will
2642 (in its default mode of operation) continue to tolerate the inconsistent
2643 forms that it has tolerated in the past, but authors and packagers should
2644 consider trying openssl and their own applications when compiled with
2645 these debugging symbols defined. It will help highlight potential bugs in
2646 their own code, and will improve the test coverage for OpenSSL itself. At
2647 some point, these tighter rules will become openssl's default to improve
2648 maintainability, though the assert()s and other overheads will remain only
2649 in debugging configurations. See bn.h for more details.
2650 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2652 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2653 that can only be obtained through BN_CTX_new() (which implicitly
2654 initialises it). The presence of this function only made it possible
2655 to overwrite an existing structure (and cause memory leaks).
2658 *) Because of the callback-based approach for implementing LHASH as a
2659 template type, lh_insert() adds opaque objects to hash-tables and
2660 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2661 to clean up those corresponding objects before destroying the hash table
2662 (and losing the object pointers). So some over-zealous constifications in
2663 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2664 objects as "const" and the lh_doall[_arg] callback wrappers are not
2665 prototyped to have "const" restrictions on the object pointers they are
2666 given (and so aren't required to cast them away any more).
2669 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2670 (speed) prefers to use its own implementation. The two implementations
2671 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2672 its object type properly exposed (MS_TM) instead of casting to/from "char
2673 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2674 aren't necessarily the greatest nomenclatures - but this is what was used
2675 internally to the implementation so I've used that for now.
2678 *) Ensure that deprecated functions do not get compiled when
2679 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2680 the self-tests were still using deprecated key-generation functions so
2681 these have been updated also.
2684 *) Reorganise PKCS#7 code to separate the digest location functionality
2685 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2686 New function PKCS7_set_digest() to set the digest type for PKCS#7
2687 digestedData type. Add additional code to correctly generate the
2688 digestedData type and add support for this type in PKCS7 initialization
2692 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2693 structure of type "other".
2696 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2697 sure the loop does correctly stop and breaking ("division by zero")
2698 modulus operations are not performed. The (pre-generated) prime
2699 table crypto/bn/bn_prime.h was already correct, but it could not be
2700 re-generated on some platforms because of the "division by zero"
2701 situation in the script.
2702 [Ralf S. Engelschall]
2704 *) Update support for ECC-based TLS ciphersuites according to
2705 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2706 SHA-1 now is only used for "small" curves (where the
2707 representation of a field element takes up to 24 bytes); for
2708 larger curves, the field element resulting from ECDH is directly
2709 used as premaster secret.
2710 [Douglas Stebila (Sun Microsystems Laboratories)]
2712 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2713 curve secp160r1 to the tests.
2714 [Douglas Stebila (Sun Microsystems Laboratories)]
2716 *) Add the possibility to load symbols globally with DSO.
2717 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2719 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2720 control of the error stack.
2723 *) Add support for STORE in ENGINE.
2726 *) Add the STORE type. The intention is to provide a common interface
2727 to certificate and key stores, be they simple file-based stores, or
2728 HSM-type store, or LDAP stores, or...
2729 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2732 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2733 pass a list of arguments to any function as well as provide a way
2734 for a function to pass data back to the caller.
2737 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2738 works like BUF_strdup() but can be used to duplicate a portion of
2739 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2743 *) Add the function sk_find_ex() which works like sk_find(), but will
2744 return an index to an element even if an exact match couldn't be
2745 found. The index is guaranteed to point at the element where the
2746 searched-for key would be inserted to preserve sorting order.
2749 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2750 takes an extra flags argument for optional functionality. Currently,
2751 the following flags are defined:
2753 OBJ_BSEARCH_VALUE_ON_NOMATCH
2754 This one gets OBJ_bsearch_ex() to return a pointer to the first
2755 element where the comparing function returns a negative or zero
2758 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2759 This one gets OBJ_bsearch_ex() to return a pointer to the first
2760 element where the comparing function returns zero. This is useful
2761 if there are more than one element where the comparing function
2765 *) Make it possible to create self-signed certificates with 'openssl ca'
2766 in such a way that the self-signed certificate becomes part of the
2767 CA database and uses the same mechanisms for serial number generation
2768 as all other certificate signing. The new flag '-selfsign' enables
2769 this functionality. Adapt CA.sh and CA.pl.in.
2772 *) Add functionality to check the public key of a certificate request
2773 against a given private. This is useful to check that a certificate
2774 request can be signed by that key (self-signing).
2777 *) Make it possible to have multiple active certificates with the same
2778 subject in the CA index file. This is done only if the keyword
2779 'unique_subject' is set to 'no' in the main CA section (default
2780 if 'CA_default') of the configuration file. The value is saved
2781 with the database itself in a separate index attribute file,
2782 named like the index file with '.attr' appended to the name.
2785 *) Generate muti valued AVAs using '+' notation in config files for
2789 *) Support for nameConstraints certificate extension.
2792 *) Support for policyConstraints certificate extension.
2795 *) Support for policyMappings certificate extension.
2798 *) Make sure the default DSA_METHOD implementation only uses its
2799 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2800 and change its own handlers to be NULL so as to remove unnecessary
2801 indirection. This lets alternative implementations fallback to the
2802 default implementation more easily.
2805 *) Support for directoryName in GeneralName related extensions
2809 *) Make it possible to link applications using Makefile.shared.
2810 Make that possible even when linking against static libraries!
2813 *) Support for single pass processing for S/MIME signing. This now
2814 means that S/MIME signing can be done from a pipe, in addition
2815 cleartext signing (multipart/signed type) is effectively streaming
2816 and the signed data does not need to be all held in memory.
2818 This is done with a new flag PKCS7_STREAM. When this flag is set
2819 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2820 is done after the data is output (and digests calculated) in
2821 SMIME_write_PKCS7().
2824 *) Add full support for -rpath/-R, both in shared libraries and
2825 applications, at least on the platforms where it's known how
2829 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2830 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2831 will now compute a table of multiples of the generator that
2832 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2833 faster (notably in the case of a single point multiplication,
2834 scalar * generator).
2835 [Nils Larsch, Bodo Moeller]
2837 *) IPv6 support for certificate extensions. The various extensions
2838 which use the IP:a.b.c.d can now take IPv6 addresses using the
2839 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2843 *) Added an ENGINE that implements RSA by performing private key
2844 exponentiations with the GMP library. The conversions to and from
2845 GMP's mpz_t format aren't optimised nor are any montgomery forms
2846 cached, and on x86 it appears OpenSSL's own performance has caught up.
2847 However there are likely to be other architectures where GMP could
2848 provide a boost. This ENGINE is not built in by default, but it can be
2849 specified at Configure time and should be accompanied by the necessary
2850 linker additions, eg;
2851 ./config -DOPENSSL_USE_GMP -lgmp
2854 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2855 testing availability of engines with "-t" - the old behaviour is
2856 produced by increasing the feature's verbosity with "-tt".
2859 *) ECDSA routines: under certain error conditions uninitialized BN objects
2860 could be freed. Solution: make sure initialization is performed early
2861 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2865 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2866 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2867 software implementations. For DSA and DH, parameter generation can
2868 also be overriden by providing the appropriate method callbacks.
2871 *) Change the "progress" mechanism used in key-generation and
2872 primality testing to functions that take a new BN_GENCB pointer in
2873 place of callback/argument pairs. The new API functions have "_ex"
2874 postfixes and the older functions are reimplemented as wrappers for
2875 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2876 declarations of the old functions to help (graceful) attempts to
2877 migrate to the new functions. Also, the new key-generation API
2878 functions operate on a caller-supplied key-structure and return
2879 success/failure rather than returning a key or NULL - this is to
2880 help make "keygen" another member function of RSA_METHOD etc.
2882 Example for using the new callback interface:
2884 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2888 BN_GENCB_set(&my_cb, my_callback, my_arg);
2890 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2891 /* For the meaning of a, b in calls to my_callback(), see the
2892 * documentation of the function that calls the callback.
2893 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2894 * my_callback should return 1 if it wants BN_is_prime_ex()
2895 * to continue, or 0 to stop.
2900 *) Change the ZLIB compression method to be stateful, and make it
2901 available to TLS with the number defined in
2902 draft-ietf-tls-compression-04.txt.
2905 *) Add the ASN.1 structures and functions for CertificatePair, which
2906 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2908 CertificatePair ::= SEQUENCE {
2909 forward [0] Certificate OPTIONAL,
2910 reverse [1] Certificate OPTIONAL,
2911 -- at least one of the pair shall be present -- }
2913 Also implement the PEM functions to read and write certificate
2914 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2916 This needed to be defined, mostly for the sake of the LDAP
2917 attribute crossCertificatePair, but may prove useful elsewhere as
2921 *) Make it possible to inhibit symlinking of shared libraries in
2922 Makefile.shared, for Cygwin's sake.
2925 *) Extend the BIGNUM API by creating a function
2926 void BN_set_negative(BIGNUM *a, int neg);
2927 and a macro that behave like
2928 int BN_is_negative(const BIGNUM *a);
2930 to avoid the need to access 'a->neg' directly in applications.
2933 *) Implement fast modular reduction for pseudo-Mersenne primes
2934 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2935 EC_GROUP_new_curve_GFp() will now automatically use this
2937 [Nils Larsch <nla@trustcenter.de>]
2939 *) Add new lock type (CRYPTO_LOCK_BN).
2942 *) Change the ENGINE framework to automatically load engines
2943 dynamically from specific directories unless they could be
2944 found to already be built in or loaded. Move all the
2945 current engines except for the cryptodev one to a new
2947 The engines in engines/ are built as shared libraries if
2948 the "shared" options was given to ./Configure or ./config.
2949 Otherwise, they are inserted in libcrypto.a.
2950 /usr/local/ssl/engines is the default directory for dynamic
2951 engines, but that can be overriden at configure time through
2952 the usual use of --prefix and/or --openssldir, and at run
2953 time with the environment variable OPENSSL_ENGINES.
2954 [Geoff Thorpe and Richard Levitte]
2956 *) Add Makefile.shared, a helper makefile to build shared
2957 libraries. Addapt Makefile.org.
2960 *) Add version info to Win32 DLLs.
2961 [Peter 'Luna' Runestig" <peter@runestig.com>]
2963 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2964 can be added using this API to created arbitrary PKCS#12
2965 files while avoiding the low level API.
2967 New options to PKCS12_create(), key or cert can be NULL and
2968 will then be omitted from the output file. The encryption
2969 algorithm NIDs can be set to -1 for no encryption, the mac
2970 iteration count can be set to 0 to omit the mac.
2972 Enhance pkcs12 utility by making the -nokeys and -nocerts
2973 options work when creating a PKCS#12 file. New option -nomac
2974 to omit the mac, NONE can be set for an encryption algorithm.
2975 New code is modified to use the enhanced PKCS12_create()
2976 instead of the low level API.
2979 *) Extend ASN1 encoder to support indefinite length constructed
2980 encoding. This can output sequences tags and octet strings in
2981 this form. Modify pk7_asn1.c to support indefinite length
2982 encoding. This is experimental and needs additional code to
2983 be useful, such as an ASN1 bio and some enhanced streaming
2986 Extend template encode functionality so that tagging is passed
2987 down to the template encoder.
2990 *) Let 'openssl req' fail if an argument to '-newkey' is not
2991 recognized instead of using RSA as a default.
2994 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2995 As these are not official, they are not included in "ALL";
2996 the "ECCdraft" ciphersuite group alias can be used to select them.
2997 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2999 *) Add ECDH engine support.
3000 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3002 *) Add ECDH in new directory crypto/ecdh/.
3003 [Douglas Stebila (Sun Microsystems Laboratories)]
3005 *) Let BN_rand_range() abort with an error after 100 iterations
3006 without success (which indicates a broken PRNG).
3009 *) Change BN_mod_sqrt() so that it verifies that the input value
3010 is really the square of the return value. (Previously,
3011 BN_mod_sqrt would show GIGO behaviour.)
3014 *) Add named elliptic curves over binary fields from X9.62, SECG,
3015 and WAP/WTLS; add OIDs that were still missing.
3017 [Sheueling Chang Shantz and Douglas Stebila
3018 (Sun Microsystems Laboratories)]
3020 *) Extend the EC library for elliptic curves over binary fields
3021 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3024 EC_GF2m_simple_method
3028 EC_GROUP_new_curve_GF2m
3029 EC_GROUP_set_curve_GF2m
3030 EC_GROUP_get_curve_GF2m
3031 EC_POINT_set_affine_coordinates_GF2m
3032 EC_POINT_get_affine_coordinates_GF2m
3033 EC_POINT_set_compressed_coordinates_GF2m
3035 Point compression for binary fields is disabled by default for
3036 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3039 As binary polynomials are represented as BIGNUMs, various members
3040 of the EC_GROUP and EC_POINT data structures can be shared
3041 between the implementations for prime fields and binary fields;
3042 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3043 are essentially identical to their ..._GFp counterparts.
3044 (For simplicity, the '..._GFp' prefix has been dropped from
3045 various internal method names.)
3047 An internal 'field_div' method (similar to 'field_mul' and
3048 'field_sqr') has been added; this is used only for binary fields.
3050 [Sheueling Chang Shantz and Douglas Stebila
3051 (Sun Microsystems Laboratories)]
3053 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3054 through methods ('mul', 'precompute_mult').
3056 The generic implementations (now internally called 'ec_wNAF_mul'
3057 and 'ec_wNAF_precomputed_mult') remain the default if these
3058 methods are undefined.
3060 [Sheueling Chang Shantz and Douglas Stebila
3061 (Sun Microsystems Laboratories)]
3063 *) New function EC_GROUP_get_degree, which is defined through
3064 EC_METHOD. For curves over prime fields, this returns the bit
3065 length of the modulus.
3067 [Sheueling Chang Shantz and Douglas Stebila
3068 (Sun Microsystems Laboratories)]
3070 *) New functions EC_GROUP_dup, EC_POINT_dup.
3071 (These simply call ..._new and ..._copy).
3073 [Sheueling Chang Shantz and Douglas Stebila
3074 (Sun Microsystems Laboratories)]
3076 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3077 Polynomials are represented as BIGNUMs (where the sign bit is not
3078 used) in the following functions [macros]:
3081 BN_GF2m_sub [= BN_GF2m_add]
3082 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3083 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3084 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3086 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3087 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3088 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3089 BN_GF2m_cmp [= BN_ucmp]
3091 (Note that only the 'mod' functions are actually for fields GF(2^m).
3092 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3094 For some functions, an the irreducible polynomial defining a
3095 field can be given as an 'unsigned int[]' with strictly
3096 decreasing elements giving the indices of those bits that are set;
3097 i.e., p[] represents the polynomial
3098 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3100 p[0] > p[1] > ... > p[k] = 0.
3101 This applies to the following functions:
3106 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3107 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3109 BN_GF2m_mod_sqrt_arr
3110 BN_GF2m_mod_solve_quad_arr
3114 Conversion can be performed by the following functions:
3119 bntest.c has additional tests for binary polynomial arithmetic.
3121 Two implementations for BN_GF2m_mod_div() are available.
3122 The default algorithm simply uses BN_GF2m_mod_inv() and
3123 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3124 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3125 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3127 [Sheueling Chang Shantz and Douglas Stebila
3128 (Sun Microsystems Laboratories)]
3130 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3131 functionality is disabled at compile-time.
3132 [Douglas Stebila <douglas.stebila@sun.com>]
3134 *) Change default behaviour of 'openssl asn1parse' so that more
3135 information is visible when viewing, e.g., a certificate:
3137 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3138 mode the content of non-printable OCTET STRINGs is output in a
3139 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3140 avoid the appearance of a printable string.
3141 [Nils Larsch <nla@trustcenter.de>]
3143 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3145 EC_GROUP_set_asn1_flag()
3146 EC_GROUP_get_asn1_flag()
3147 EC_GROUP_set_point_conversion_form()
3148 EC_GROUP_get_point_conversion_form()
3149 These control ASN1 encoding details:
3150 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3151 has been set to OPENSSL_EC_NAMED_CURVE.
3152 - Points are encoded in uncompressed form by default; options for
3153 asn1_for are as for point2oct, namely
3154 POINT_CONVERSION_COMPRESSED
3155 POINT_CONVERSION_UNCOMPRESSED
3156 POINT_CONVERSION_HYBRID
3158 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3161 EC_GROUP_get0_seed()
3162 EC_GROUP_get_seed_len()
3163 This is used only for ASN1 purposes (so far).
3164 [Nils Larsch <nla@trustcenter.de>]
3166 *) Add 'field_type' member to EC_METHOD, which holds the NID
3167 of the appropriate field type OID. The new function
3168 EC_METHOD_get_field_type() returns this value.
3169 [Nils Larsch <nla@trustcenter.de>]
3174 EC_POINT_point2hex()
3175 EC_POINT_hex2point()
3176 providing useful interfaces to EC_POINT_point2oct() and
3177 EC_POINT_oct2point().
3178 [Nils Larsch <nla@trustcenter.de>]
3180 *) Change internals of the EC library so that the functions
3181 EC_GROUP_set_generator()
3182 EC_GROUP_get_generator()
3183 EC_GROUP_get_order()
3184 EC_GROUP_get_cofactor()
3185 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3186 to methods, which would lead to unnecessary code duplication when
3187 adding different types of curves.
3188 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3190 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3191 arithmetic, and such that modified wNAFs are generated
3192 (which avoid length expansion in many cases).
3195 *) Add a function EC_GROUP_check_discriminant() (defined via
3196 EC_METHOD) that verifies that the curve discriminant is non-zero.
3198 Add a function EC_GROUP_check() that makes some sanity tests
3199 on a EC_GROUP, its generator and order. This includes
3200 EC_GROUP_check_discriminant().
3201 [Nils Larsch <nla@trustcenter.de>]
3203 *) Add ECDSA in new directory crypto/ecdsa/.
3205 Add applications 'openssl ecparam' and 'openssl ecdsa'
3206 (these are based on 'openssl dsaparam' and 'openssl dsa').
3208 ECDSA support is also included in various other files across the
3209 library. Most notably,
3210 - 'openssl req' now has a '-newkey ecdsa:file' option;
3211 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3212 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3213 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3214 them suitable for ECDSA where domain parameters must be
3215 extracted before the specific public key;
3216 - ECDSA engine support has been added.
3217 [Nils Larsch <nla@trustcenter.de>]
3219 *) Include some named elliptic curves, and add OIDs from X9.62,
3220 SECG, and WAP/WTLS. Each curve can be obtained from the new
3222 EC_GROUP_new_by_curve_name(),
3223 and the list of available named curves can be obtained with
3224 EC_get_builtin_curves().
3225 Also add a 'curve_name' member to EC_GROUP objects, which can be
3227 EC_GROUP_set_curve_name()
3228 EC_GROUP_get_curve_name()
3229 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3231 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3232 was actually never needed) and in BN_mul(). The removal in BN_mul()
3233 required a small change in bn_mul_part_recursive() and the addition
3234 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3235 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3236 bn_sub_words() and bn_add_words() except they take arrays with
3240 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3242 *) Cleanse PEM buffers before freeing them since they may contain
3244 [Benjamin Bennett <ben@psc.edu>]
3246 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3247 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3248 authentication-only ciphersuites.
3251 *) Since AES128 and AES256 share a single mask bit in the logic of
3252 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3253 kludge to work properly if AES128 is available and AES256 isn't.
3256 *) Expand security boundary to match 1.1.1 module.
3259 *) Remove redundant features: hash file source, editing of test vectors
3260 modify fipsld to use external fips_premain.c signature.
3263 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3264 run algorithm test programs.
3267 *) Make algorithm test programs more tolerant of whitespace.
3270 *) Have SSL/TLS server implementation tolerate "mismatched" record
3271 protocol version while receiving ClientHello even if the
3272 ClientHello is fragmented. (The server can't insist on the
3273 particular protocol version it has chosen before the ServerHello
3274 message has informed the client about his choice.)
3277 *) Load error codes if they are not already present instead of using a
3278 static variable. This allows them to be cleanly unloaded and reloaded.
3281 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3283 *) Introduce limits to prevent malicious keys being able to
3284 cause a denial of service. (CVE-2006-2940)
3285 [Steve Henson, Bodo Moeller]
3287 *) Fix ASN.1 parsing of certain invalid structures that can result
3288 in a denial of service. (CVE-2006-2937) [Steve Henson]
3290 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3291 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3293 *) Fix SSL client code which could crash if connecting to a
3294 malicious SSLv2 server. (CVE-2006-4343)
3295 [Tavis Ormandy and Will Drewry, Google Security Team]
3297 *) Change ciphersuite string processing so that an explicit
3298 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3299 will no longer include "AES128-SHA"), and any other similar
3300 ciphersuite (same bitmap) from *other* protocol versions (so that
3301 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3302 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3303 changes from 0.9.8b and 0.9.8d.
3306 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3308 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3309 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3311 *) Change the Unix randomness entropy gathering to use poll() when
3312 possible instead of select(), since the latter has some
3313 undesirable limitations.
3314 [Darryl Miles via Richard Levitte and Bodo Moeller]
3316 *) Disable rogue ciphersuites:
3318 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3319 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3320 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3322 The latter two were purportedly from
3323 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3326 Also deactive the remaining ciphersuites from
3327 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3328 unofficial, and the ID has long expired.
3331 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3332 dual-core machines) and other potential thread-safety issues.
3335 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3337 *) Adapt fipsld and the build system to link against the validated FIPS
3338 module in FIPS mode.
3341 *) Fixes for VC++ 2005 build under Windows.
3344 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3345 from a Windows bash shell such as MSYS. It is autodetected from the
3346 "config" script when run from a VC++ environment. Modify standard VC++
3347 build to use fipscanister.o from the GNU make build.
3350 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3352 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3353 The value now differs depending on if you build for FIPS or not.
3354 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3355 safely run with a non-FIPSed libcrypto, as it may crash because of
3356 the difference induced by this change.
3359 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3361 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3362 (part of SSL_OP_ALL). This option used to disable the
3363 countermeasure against man-in-the-middle protocol-version
3364 rollback in the SSL 2.0 server implementation, which is a bad
3365 idea. (CVE-2005-2969)
3367 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3368 for Information Security, National Institute of Advanced Industrial
3369 Science and Technology [AIST], Japan)]
3371 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3372 mainly for FIPS compliance and not fully integrated at this stage.
3375 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3376 the exponentiation using a fixed-length exponent. (Otherwise,
3377 the information leaked through timing could expose the secret key
3378 after many signatures; cf. Bleichenbacher's attack on DSA with
3382 *) Make a new fixed-window mod_exp implementation the default for
3383 RSA, DSA, and DH private-key operations so that the sequence of
3384 squares and multiplies and the memory access pattern are
3385 independent of the particular secret key. This will mitigate
3386 cache-timing and potential related attacks.
3388 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3389 and this is automatically used by BN_mod_exp_mont() if the new flag
3390 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3391 will use this BN flag for private exponents unless the flag
3392 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3393 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3395 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3397 *) Change the client implementation for SSLv23_method() and
3398 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3399 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3400 (Previously, the SSL 2.0 backwards compatible Client Hello
3401 message format would be used even with SSL_OP_NO_SSLv2.)
3404 *) Add support for smime-type MIME parameter in S/MIME messages which some
3408 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3409 a threadsafe manner. Modify rsa code to use new function and add calls
3410 to dsa and dh code (which had race conditions before).
3413 *) Include the fixed error library code in the C error file definitions
3414 instead of fixing them up at runtime. This keeps the error code
3415 structures constant.
3418 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3420 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3423 *) Fixes for newer kerberos headers. NB: the casts are needed because
3424 the 'length' field is signed on one version and unsigned on another
3425 with no (?) obvious way to tell the difference, without these VC++
3426 complains. Also the "definition" of FAR (blank) is no longer included
3427 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3428 some needed definitions.
3431 *) Undo Cygwin change.
3434 *) Added support for proxy certificates according to RFC 3820.
3435 Because they may be a security thread to unaware applications,
3436 they must be explicitely allowed in run-time. See
3437 docs/HOWTO/proxy_certificates.txt for further information.
3440 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3442 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3443 server and client random values. Previously
3444 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3445 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3447 This change has negligible security impact because:
3449 1. Server and client random values still have 24 bytes of pseudo random
3452 2. Server and client random values are sent in the clear in the initial
3455 3. The master secret is derived using the premaster secret (48 bytes in
3456 size for static RSA ciphersuites) as well as client server and random
3459 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3462 [Stephen Henson, reported by UK NISCC]
3464 *) Use Windows randomness collection on Cygwin.
3467 *) Fix hang in EGD/PRNGD query when communication socket is closed
3468 prematurely by EGD/PRNGD.
3469 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3471 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3474 *) Back-port of selected performance improvements from development
3475 branch, as well as improved support for PowerPC platforms.
3478 *) Add lots of checks for memory allocation failure, error codes to indicate
3479 failure and freeing up memory if a failure occurs.
3480 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3482 *) Add new -passin argument to dgst.
3485 *) Perform some character comparisons of different types in X509_NAME_cmp:
3486 this is needed for some certificates that reencode DNs into UTF8Strings
3487 (in violation of RFC3280) and can't or wont issue name rollover
3491 *) Make an explicit check during certificate validation to see that
3492 the CA setting in each certificate on the chain is correct. As a
3493 side effect always do the following basic checks on extensions,
3494 not just when there's an associated purpose to the check:
3496 - if there is an unhandled critical extension (unless the user
3497 has chosen to ignore this fault)
3498 - if the path length has been exceeded (if one is set at all)
3499 - that certain extensions fit the associated purpose (if one has
3503 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3505 *) Avoid a race condition when CRLs are checked in a multi threaded
3506 environment. This would happen due to the reordering of the revoked
3507 entries during signature checking and serial number lookup. Now the
3508 encoding is cached and the serial number sort performed under a lock.
3509 Add new STACK function sk_is_sorted().
3512 *) Add Delta CRL to the extension code.
3515 *) Various fixes to s3_pkt.c so alerts are sent properly.
3516 [David Holmes <d.holmes@f5.com>]
3518 *) Reduce the chances of duplicate issuer name and serial numbers (in
3519 violation of RFC3280) using the OpenSSL certificate creation utilities.
3520 This is done by creating a random 64 bit value for the initial serial
3521 number when a serial number file is created or when a self signed
3522 certificate is created using 'openssl req -x509'. The initial serial
3523 number file is created using 'openssl x509 -next_serial' in CA.pl
3524 rather than being initialized to 1.
3527 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3529 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3530 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3531 [Joe Orton, Steve Henson]
3533 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3535 [Joe Orton, Steve Henson]
3537 *) Make it possible to have multiple active certificates with the same
3538 subject in the CA index file. This is done only if the keyword
3539 'unique_subject' is set to 'no' in the main CA section (default
3540 if 'CA_default') of the configuration file. The value is saved
3541 with the database itself in a separate index attribute file,
3542 named like the index file with '.attr' appended to the name.
3545 *) X509 verify fixes. Disable broken certificate workarounds when
3546 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3547 keyUsage extension present. Don't accept CRLs with unhandled critical
3548 extensions: since verify currently doesn't process CRL extensions this
3549 rejects a CRL with *any* critical extensions. Add new verify error codes
3553 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3554 A clarification of RFC2560 will require the use of OCTET STRINGs and
3555 some implementations cannot handle the current raw format. Since OpenSSL
3556 copies and compares OCSP nonces as opaque blobs without any attempt at
3557 parsing them this should not create any compatibility issues.
3560 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3561 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3562 this HMAC (and other) operations are several times slower than OpenSSL
3566 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3567 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3569 *) Use the correct content when signing type "other".
3572 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3574 *) Fix various bugs revealed by running the NISCC test suite:
3576 Stop out of bounds reads in the ASN1 code when presented with
3577 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3579 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3581 If verify callback ignores invalid public key errors don't try to check
3582 certificate signature with the NULL public key.
3586 *) New -ignore_err option in ocsp application to stop the server
3587 exiting on the first error in a request.
3590 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3591 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3595 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3596 extra data after the compression methods not only for TLS 1.0
3597 but also for SSL 3.0 (as required by the specification).
3598 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3600 *) Change X509_certificate_type() to mark the key as exported/exportable
3601 when it's 512 *bits* long, not 512 bytes.
3604 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3605 blocks during encryption.
3608 *) Various fixes to base64 BIO and non blocking I/O. On write
3609 flushes were not handled properly if the BIO retried. On read
3610 data was not being buffered properly and had various logic bugs.
3611 This also affects blocking I/O when the data being decoded is a
3615 *) Various S/MIME bugfixes and compatibility changes:
3616 output correct application/pkcs7 MIME type if
3617 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3618 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3619 of files as .eml work). Correctly handle very long lines in MIME
3623 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3625 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3626 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3627 a protocol version number mismatch like a decryption error
3628 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3631 *) Turn on RSA blinding by default in the default implementation
3632 to avoid a timing attack. Applications that don't want it can call
3633 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3634 They would be ill-advised to do so in most cases.
3635 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3637 *) Change RSA blinding code so that it works when the PRNG is not
3638 seeded (in this case, the secret RSA exponent is abused as
3639 an unpredictable seed -- if it is not unpredictable, there
3640 is no point in blinding anyway). Make RSA blinding thread-safe
3641 by remembering the creator's thread ID in rsa->blinding and
3642 having all other threads use local one-time blinding factors
3643 (this requires more computation than sharing rsa->blinding, but
3644 avoids excessive locking; and if an RSA object is not shared
3645 between threads, blinding will still be very fast).
3648 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3649 ENGINE as defaults for all supported algorithms irrespective of
3650 the 'flags' parameter. 'flags' is now honoured, so applications
3651 should make sure they are passing it correctly.
3654 *) Target "mingw" now allows native Windows code to be generated in
3655 the Cygwin environment as well as with the MinGW compiler.
3658 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3660 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3661 via timing by performing a MAC computation even if incorrrect
3662 block cipher padding has been found. This is a countermeasure
3663 against active attacks where the attacker has to distinguish
3664 between bad padding and a MAC verification error. (CVE-2003-0078)
3666 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3667 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3668 Martin Vuagnoux (EPFL, Ilion)]
3670 *) Make the no-err option work as intended. The intention with no-err
3671 is not to have the whole error stack handling routines removed from
3672 libcrypto, it's only intended to remove all the function name and
3673 reason texts, thereby removing some of the footprint that may not
3674 be interesting if those errors aren't displayed anyway.
3676 NOTE: it's still possible for any application or module to have it's
3677 own set of error texts inserted. The routines are there, just not
3678 used by default when no-err is given.
3681 *) Add support for FreeBSD on IA64.
3682 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3684 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3685 Kerberos function mit_des_cbc_cksum(). Before this change,
3686 the value returned by DES_cbc_cksum() was like the one from
3687 mit_des_cbc_cksum(), except the bytes were swapped.
3688 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3690 *) Allow an application to disable the automatic SSL chain building.
3691 Before this a rather primitive chain build was always performed in
3692 ssl3_output_cert_chain(): an application had no way to send the
3693 correct chain if the automatic operation produced an incorrect result.
3695 Now the chain builder is disabled if either:
3697 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3699 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3701 The reasoning behind this is that an application would not want the
3702 auto chain building to take place if extra chain certificates are
3703 present and it might also want a means of sending no additional
3704 certificates (for example the chain has two certificates and the
3708 *) Add the possibility to build without the ENGINE framework.
3709 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3711 *) Under Win32 gmtime() can return NULL: check return value in
3712 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3715 *) DSA routines: under certain error conditions uninitialized BN objects
3716 could be freed. Solution: make sure initialization is performed early
3717 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3718 Nils Larsch <nla@trustcenter.de> via PR#459)
3721 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3722 checked on reconnect on the client side, therefore session resumption
3723 could still fail with a "ssl session id is different" error. This
3724 behaviour is masked when SSL_OP_ALL is used due to
3725 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3726 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3727 followup to PR #377.
3730 *) IA-32 assembler support enhancements: unified ELF targets, support
3731 for SCO/Caldera platforms, fix for Cygwin shared build.
3734 *) Add support for FreeBSD on sparc64. As a consequence, support for
3735 FreeBSD on non-x86 processors is separate from x86 processors on
3736 the config script, much like the NetBSD support.
3737 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3739 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3741 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3744 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3745 code (06) was taken as the first octet of the session ID and the last
3746 octet was ignored consequently. As a result SSLv2 client side session
3747 caching could not have worked due to the session ID mismatch between
3749 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3753 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3754 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3758 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3759 seems that in spite of existing for more than a year, many application
3760 author have done nothing to provide the necessary callbacks, which
3761 means that this particular engine will not work properly anywhere.
3762 This is a very unfortunate situation which forces us, in the name
3763 of usability, to give the hw_ncipher.c a static lock, which is part
3765 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3766 appear in 0.9.8 or later. We EXPECT application authors to have
3767 dealt properly with this when 0.9.8 is released (unless we actually
3768 make such changes in the libcrypto locking code that changes will
3769 have to be made anyway).
3772 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3773 octets have been read, EOF or an error occurs. Without this change
3774 some truncated ASN1 structures will not produce an error.
3777 *) Disable Heimdal support, since it hasn't been fully implemented.
3778 Still give the possibility to force the use of Heimdal, but with
3779 warnings and a request that patches get sent to openssl-dev.
3782 *) Add the VC-CE target, introduce the WINCE sysname, and add
3783 INSTALL.WCE and appropriate conditionals to make it build.
3784 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3786 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3787 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3788 edit numbers of the version.
3789 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3791 *) Introduce safe string copy and catenation functions
3792 (BUF_strlcpy() and BUF_strlcat()).
3793 [Ben Laurie (CHATS) and Richard Levitte]
3795 *) Avoid using fixed-size buffers for one-line DNs.
3796 [Ben Laurie (CHATS)]
3798 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3799 resizing buffers containing secrets, and use where appropriate.
3800 [Ben Laurie (CHATS)]
3802 *) Avoid using fixed size buffers for configuration file location.
3803 [Ben Laurie (CHATS)]
3805 *) Avoid filename truncation for various CA files.
3806 [Ben Laurie (CHATS)]
3808 *) Use sizeof in preference to magic numbers.
3809 [Ben Laurie (CHATS)]
3811 *) Avoid filename truncation in cert requests.
3812 [Ben Laurie (CHATS)]
3814 *) Add assertions to check for (supposedly impossible) buffer
3816 [Ben Laurie (CHATS)]
3818 *) Don't cache truncated DNS entries in the local cache (this could
3819 potentially lead to a spoofing attack).
3820 [Ben Laurie (CHATS)]
3822 *) Fix various buffers to be large enough for hex/decimal
3823 representations in a platform independent manner.
3824 [Ben Laurie (CHATS)]
3826 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3827 resizing buffers containing secrets, and use where appropriate.
3828 [Ben Laurie (CHATS)]
3830 *) Add BIO_indent() to avoid much slightly worrying code to do
3832 [Ben Laurie (CHATS)]
3834 *) Convert sprintf()/BIO_puts() to BIO_printf().
3835 [Ben Laurie (CHATS)]
3837 *) buffer_gets() could terminate with the buffer only half
3839 [Ben Laurie (CHATS)]
3841 *) Add assertions to prevent user-supplied crypto functions from
3842 overflowing internal buffers by having large block sizes, etc.
3843 [Ben Laurie (CHATS)]
3845 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3847 [Ben Laurie (CHATS)]
3849 *) Eliminate unused copy of key in RC4.
3850 [Ben Laurie (CHATS)]
3852 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3853 [Ben Laurie (CHATS)]
3855 *) Fix off-by-one error in EGD path.
3856 [Ben Laurie (CHATS)]
3858 *) If RANDFILE path is too long, ignore instead of truncating.
3859 [Ben Laurie (CHATS)]
3861 *) Eliminate unused and incorrectly sized X.509 structure
3863 [Ben Laurie (CHATS)]
3865 *) Eliminate unused and dangerous function knumber().
3866 [Ben Laurie (CHATS)]
3868 *) Eliminate unused and dangerous structure, KSSL_ERR.
3869 [Ben Laurie (CHATS)]
3871 *) Protect against overlong session ID context length in an encoded
3872 session object. Since these are local, this does not appear to be
3874 [Ben Laurie (CHATS)]
3876 *) Change from security patch (see 0.9.6e below) that did not affect
3877 the 0.9.6 release series:
3879 Remote buffer overflow in SSL3 protocol - an attacker could
3880 supply an oversized master key in Kerberos-enabled versions.
3882 [Ben Laurie (CHATS)]
3884 *) Change the SSL kerb5 codes to match RFC 2712.
3887 *) Make -nameopt work fully for req and add -reqopt switch.
3888 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3890 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3891 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3893 *) Make sure tests can be performed even if the corresponding algorithms
3894 have been removed entirely. This was also the last step to make
3895 OpenSSL compilable with DJGPP under all reasonable conditions.
3896 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3898 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3899 to allow version independent disabling of normally unselected ciphers,
3900 which may be activated as a side-effect of selecting a single cipher.
3902 (E.g., cipher list string "RSA" enables ciphersuites that are left
3903 out of "ALL" because they do not provide symmetric encryption.
3904 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3905 [Lutz Jaenicke, Bodo Moeller]
3907 *) Add appropriate support for separate platform-dependent build
3908 directories. The recommended way to make a platform-dependent
3909 build directory is the following (tested on Linux), maybe with
3912 # Place yourself outside of the OpenSSL source tree. In
3913 # this example, the environment variable OPENSSL_SOURCE
3914 # is assumed to contain the absolute OpenSSL source directory.
3915 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3916 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3917 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3918 mkdir -p `dirname $F`
3919 ln -s $OPENSSL_SOURCE/$F $F
3922 To be absolutely sure not to disturb the source tree, a "make clean"
3923 is a good thing. If it isn't successfull, don't worry about it,
3924 it probably means the source directory is very clean.
3927 *) Make sure any ENGINE control commands make local copies of string
3928 pointers passed to them whenever necessary. Otherwise it is possible
3929 the caller may have overwritten (or deallocated) the original string
3930 data when a later ENGINE operation tries to use the stored values.
3931 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3933 *) Improve diagnostics in file reading and command-line digests.
3934 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3936 *) Add AES modes CFB and OFB to the object database. Correct an
3937 error in AES-CFB decryption.
3940 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3941 allows existing EVP_CIPHER_CTX structures to be reused after
3942 calling EVP_*Final(). This behaviour is used by encryption
3943 BIOs and some applications. This has the side effect that
3944 applications must explicitly clean up cipher contexts with
3945 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3948 *) Check the values of dna and dnb in bn_mul_recursive before calling
3949 bn_mul_comba (a non zero value means the a or b arrays do not contain
3950 n2 elements) and fallback to bn_mul_normal if either is not zero.
3953 *) Fix escaping of non-ASCII characters when using the -subj option
3954 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3957 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3958 form for "surname", serialNumber has no short form.
3959 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3960 therefore remove "mail" short name for "internet 7".
3961 The OID for unique identifiers in X509 certificates is
3962 x500UniqueIdentifier, not uniqueIdentifier.
3963 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3966 *) Add an "init" command to the ENGINE config module and auto initialize
3967 ENGINEs. Without any "init" command the ENGINE will be initialized
3968 after all ctrl commands have been executed on it. If init=1 the
3969 ENGINE is initailized at that point (ctrls before that point are run
3970 on the uninitialized ENGINE and after on the initialized one). If
3971 init=0 then the ENGINE will not be iniatialized at all.
3974 *) Fix the 'app_verify_callback' interface so that the user-defined
3975 argument is actually passed to the callback: In the
3976 SSL_CTX_set_cert_verify_callback() prototype, the callback
3977 declaration has been changed from
3980 int (*cb)(X509_STORE_CTX *,void *);
3981 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3982 i=s->ctx->app_verify_callback(&ctx)
3983 has been changed into
3984 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3986 To update applications using SSL_CTX_set_cert_verify_callback(),
3987 a dummy argument can be added to their callback functions.
3988 [D. K. Smetters <smetters@parc.xerox.com>]
3990 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3991 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3993 *) Add and OPENSSL_LOAD_CONF define which will cause
3994 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3995 This allows older applications to transparently support certain
3996 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3997 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3998 load the config file and OPENSSL_add_all_algorithms_conf() which will
3999 always load it have also been added.
4002 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4003 Adjust NIDs and EVP layer.
4004 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4006 *) Config modules support in openssl utility.
4008 Most commands now load modules from the config file,
4009 though in a few (such as version) this isn't done
4010 because it couldn't be used for anything.
4012 In the case of ca and req the config file used is
4013 the same as the utility itself: that is the -config
4014 command line option can be used to specify an
4018 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4019 use "openssl_conf" if filename is NULL use default openssl config file.
4022 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4023 config section name. Add a new flag to tolerate a missing config file
4024 and move code to CONF_modules_load_file().
4027 *) Support for crypto accelerator cards from Accelerated Encryption
4028 Processing, www.aep.ie. (Use engine 'aep')
4029 The support was copied from 0.9.6c [engine] and adapted/corrected
4030 to work with the new engine framework.
4031 [AEP Inc. and Richard Levitte]
4033 *) Support for SureWare crypto accelerator cards from Baltimore
4034 Technologies. (Use engine 'sureware')
4035 The support was copied from 0.9.6c [engine] and adapted
4036 to work with the new engine framework.
4039 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4040 make the newer ENGINE framework commands for the CHIL engine work.
4041 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4043 *) Make it possible to produce shared libraries on ReliantUNIX.
4044 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4046 *) Add the configuration target debug-linux-ppro.
4047 Make 'openssl rsa' use the general key loading routines
4048 implemented in apps.c, and make those routines able to
4049 handle the key format FORMAT_NETSCAPE and the variant
4051 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4053 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4054 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4056 *) Add -keyform to rsautl, and document -engine.
4057 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4059 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4060 BIO_R_NO_SUCH_FILE error code rather than the generic
4061 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4064 *) Add new functions
4066 ERR_peek_last_error_line
4067 ERR_peek_last_error_line_data.
4068 These are similar to
4071 ERR_peek_error_line_data,
4072 but report on the latest error recorded rather than the first one
4073 still in the error queue.
4074 [Ben Laurie, Bodo Moeller]
4076 *) default_algorithms option in ENGINE config module. This allows things
4078 default_algorithms = ALL
4079 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4082 *) Prelminary ENGINE config module.
4085 *) New experimental application configuration code.
4088 *) Change the AES code to follow the same name structure as all other
4089 symmetric ciphers, and behave the same way. Move everything to
4090 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4091 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4093 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4094 [Ben Laurie and Theo de Raadt]
4096 *) Add option to output public keys in req command.
4097 [Massimiliano Pala madwolf@openca.org]
4099 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4100 (up to about 10% better than before for P-192 and P-224).
4103 *) New functions/macros
4105 SSL_CTX_set_msg_callback(ctx, cb)
4106 SSL_CTX_set_msg_callback_arg(ctx, arg)
4107 SSL_set_msg_callback(ssl, cb)
4108 SSL_set_msg_callback_arg(ssl, arg)
4110 to request calling a callback function
4112 void cb(int write_p, int version, int content_type,
4113 const void *buf, size_t len, SSL *ssl, void *arg)
4115 whenever a protocol message has been completely received
4116 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4117 protocol version according to which the SSL library interprets
4118 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4119 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4120 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4121 specification (change_cipher_spec(20), alert(21), handshake(22)).
4122 'buf' and 'len' point to the actual message, 'ssl' to the
4123 SSL object, and 'arg' is the application-defined value set by
4124 SSL[_CTX]_set_msg_callback_arg().
4126 'openssl s_client' and 'openssl s_server' have new '-msg' options
4127 to enable a callback that displays all protocol messages.
4130 *) Change the shared library support so shared libraries are built as
4131 soon as the corresponding static library is finished, and thereby get
4132 openssl and the test programs linked against the shared library.
4133 This still only happens when the keyword "shard" has been given to
4134 the configuration scripts.
4136 NOTE: shared library support is still an experimental thing, and
4137 backward binary compatibility is still not guaranteed.
4138 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4140 *) Add support for Subject Information Access extension.
4141 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4143 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4144 additional bytes when new memory had to be allocated, not just
4145 when reusing an existing buffer.
4148 *) New command line and configuration option 'utf8' for the req command.
4149 This allows field values to be specified as UTF8 strings.
4152 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4153 runs for the former and machine-readable output for the latter.
4156 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4157 of the e-mail address in the DN (i.e., it will go into a certificate
4158 extension only). The new configuration file option 'email_in_dn = no'
4159 has the same effect.
4160 [Massimiliano Pala madwolf@openca.org]
4162 *) Change all functions with names starting with des_ to be starting
4163 with DES_ instead. Add wrappers that are compatible with libdes,
4164 but are named _ossl_old_des_*. Finally, add macros that map the
4165 des_* symbols to the corresponding _ossl_old_des_* if libdes
4166 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4167 desired, the des_* symbols will be mapped to DES_*, with one
4170 Since we provide two compatibility mappings, the user needs to
4171 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4172 compatibility is desired. The default (i.e., when that macro
4173 isn't defined) is OpenSSL 0.9.6c compatibility.
4175 There are also macros that enable and disable the support of old
4176 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4177 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4178 are defined, the default will apply: to support the old des routines.
4180 In either case, one must include openssl/des.h to get the correct
4181 definitions. Do not try to just include openssl/des_old.h, that
4184 NOTE: This is a major break of an old API into a new one. Software
4185 authors are encouraged to switch to the DES_ style functions. Some
4186 time in the future, des_old.h and the libdes compatibility functions
4187 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4188 default), and then completely removed.
4191 *) Test for certificates which contain unsupported critical extensions.
4192 If such a certificate is found during a verify operation it is
4193 rejected by default: this behaviour can be overridden by either
4194 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4195 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4196 X509_supported_extension() has also been added which returns 1 if a
4197 particular extension is supported.
4200 *) Modify the behaviour of EVP cipher functions in similar way to digests
4201 to retain compatibility with existing code.
4204 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4205 compatibility with existing code. In particular the 'ctx' parameter does
4206 not have to be to be initialized before the call to EVP_DigestInit() and
4207 it is tidied up after a call to EVP_DigestFinal(). New function
4208 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4209 EVP_MD_CTX_copy() changed to not require the destination to be
4210 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4211 requires the destination to be valid.
4213 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4214 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4217 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4218 so that complete 'Handshake' protocol structures are kept in memory
4219 instead of overwriting 'msg_type' and 'length' with 'body' data.
4222 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4223 [Massimo Santin via Richard Levitte]
4225 *) Major restructuring to the underlying ENGINE code. This includes
4226 reduction of linker bloat, separation of pure "ENGINE" manipulation
4227 (initialisation, etc) from functionality dealing with implementations
4228 of specific crypto iterfaces. This change also introduces integrated
4229 support for symmetric ciphers and digest implementations - so ENGINEs
4230 can now accelerate these by providing EVP_CIPHER and EVP_MD
4231 implementations of their own. This is detailed in crypto/engine/README
4232 as it couldn't be adequately described here. However, there are a few
4233 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4234 were changed in the original introduction of ENGINE code have now
4235 reverted back - the hooking from this code to ENGINE is now a good
4236 deal more passive and at run-time, operations deal directly with
4237 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4238 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4239 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4240 they were not being used by the framework as there is no concept of a
4241 BIGNUM_METHOD and they could not be generalised to the new
4242 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4243 ENGINE_cpy() has been removed as it cannot be consistently defined in
4247 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4250 *) Change mkdef.pl to sort symbols that get the same entry number,
4251 and make sure the automatically generated functions ERR_load_*
4252 become part of libeay.num as well.
4255 *) New function SSL_renegotiate_pending(). This returns true once
4256 renegotiation has been requested (either SSL_renegotiate() call
4257 or HelloRequest/ClientHello receveived from the peer) and becomes
4258 false once a handshake has been completed.
4259 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4260 sends a HelloRequest, but does not ensure that a handshake takes
4261 place. SSL_renegotiate_pending() is useful for checking if the
4262 client has followed the request.)
4265 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4266 By default, clients may request session resumption even during
4267 renegotiation (if session ID contexts permit); with this option,
4268 session resumption is possible only in the first handshake.
4270 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4271 more bits available for options that should not be part of
4272 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4275 *) Add some demos for certificate and certificate request creation.
4278 *) Make maximum certificate chain size accepted from the peer application
4279 settable (SSL*_get/set_max_cert_list()), as proposed by
4280 "Douglas E. Engert" <deengert@anl.gov>.
4283 *) Add support for shared libraries for Unixware-7
4284 (Boyd Lynn Gerber <gerberb@zenez.com>).
4287 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4288 be done prior to destruction. Use this to unload error strings from
4289 ENGINEs that load their own error strings. NB: This adds two new API
4290 functions to "get" and "set" this destroy handler in an ENGINE.
4293 *) Alter all existing ENGINE implementations (except "openssl" and
4294 "openbsd") to dynamically instantiate their own error strings. This
4295 makes them more flexible to be built both as statically-linked ENGINEs
4296 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4297 Also, add stub code to each that makes building them as self-contained
4298 shared-libraries easier (see README.ENGINE).
4301 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4302 implementations into applications that are completely implemented in
4303 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4304 commands that can be used to configure what shared-library to load and
4305 to control aspects of the way it is handled. Also, made an update to
4306 the README.ENGINE file that brings its information up-to-date and
4307 provides some information and instructions on the "dynamic" ENGINE
4308 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4311 *) Make it possible to unload ranges of ERR strings with a new
4312 "ERR_unload_strings" function.
4315 *) Add a copy() function to EVP_MD.
4318 *) Make EVP_MD routines take a context pointer instead of just the
4319 md_data void pointer.
4322 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4323 that the digest can only process a single chunk of data
4324 (typically because it is provided by a piece of
4325 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4326 is only going to provide a single chunk of data, and hence the
4327 framework needn't accumulate the data for oneshot drivers.
4330 *) As with "ERR", make it possible to replace the underlying "ex_data"
4331 functions. This change also alters the storage and management of global
4332 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4333 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4334 index counters. The API functions that use this state have been changed
4335 to take a "class_index" rather than pointers to the class's local STACK
4336 and counter, and there is now an API function to dynamically create new
4337 classes. This centralisation allows us to (a) plug a lot of the
4338 thread-safety problems that existed, and (b) makes it possible to clean
4339 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4340 such data would previously have always leaked in application code and
4341 workarounds were in place to make the memory debugging turn a blind eye
4342 to it. Application code that doesn't use this new function will still
4343 leak as before, but their memory debugging output will announce it now
4344 rather than letting it slide.
4346 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4347 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4348 has a return value to indicate success or failure.
4351 *) Make it possible to replace the underlying "ERR" functions such that the
4352 global state (2 LHASH tables and 2 locks) is only used by the "default"
4353 implementation. This change also adds two functions to "get" and "set"
4354 the implementation prior to it being automatically set the first time
4355 any other ERR function takes place. Ie. an application can call "get",
4356 pass the return value to a module it has just loaded, and that module
4357 can call its own "set" function using that value. This means the
4358 module's "ERR" operations will use (and modify) the error state in the
4359 application and not in its own statically linked copy of OpenSSL code.
4362 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4363 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4364 the operation, and provides a more encapsulated way for external code
4365 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4366 to use these functions rather than manually incrementing the counts.
4368 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4371 *) Add EVP test program.
4374 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4377 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4378 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4379 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4380 These allow a CRL to be built without having to access X509_CRL fields
4381 directly. Modify 'ca' application to use new functions.
4384 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4385 bug workarounds. Rollback attack detection is a security feature.
4386 The problem will only arise on OpenSSL servers when TLSv1 is not
4387 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4388 Software authors not wanting to support TLSv1 will have special reasons
4389 for their choice and can explicitly enable this option.
4390 [Bodo Moeller, Lutz Jaenicke]
4392 *) Rationalise EVP so it can be extended: don't include a union of
4393 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4394 (similar to those existing for EVP_CIPHER_CTX).
4399 EVP_MD_CTX_init(&md); /* new function call */
4400 EVP_DigestInit(&md, EVP_sha1());
4401 EVP_DigestUpdate(&md, in, len);
4402 EVP_DigestFinal(&md, out, NULL);
4403 EVP_MD_CTX_cleanup(&md); /* new function call */
4407 *) Make DES key schedule conform to the usual scheme, as well as
4408 correcting its structure. This means that calls to DES functions
4409 now have to pass a pointer to a des_key_schedule instead of a
4410 plain des_key_schedule (which was actually always a pointer
4413 des_key_schedule ks;
4415 des_set_key_checked(..., &ks);
4416 des_ncbc_encrypt(..., &ks, ...);
4418 (Note that a later change renames 'des_...' into 'DES_...'.)
4421 *) Initial reduction of linker bloat: the use of some functions, such as
4422 PEM causes large amounts of unused functions to be linked in due to
4423 poor organisation. For example pem_all.c contains every PEM function
4424 which has a knock on effect of linking in large amounts of (unused)
4425 ASN1 code. Grouping together similar functions and splitting unrelated
4426 functions prevents this.
4429 *) Cleanup of EVP macros.
4432 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4433 correct _ecb suffix.
4436 *) Add initial OCSP responder support to ocsp application. The
4437 revocation information is handled using the text based index
4438 use by the ca application. The responder can either handle
4439 requests generated internally, supplied in files (for example
4440 via a CGI script) or using an internal minimal server.
4443 *) Add configuration choices to get zlib compression for TLS.
4446 *) Changes to Kerberos SSL for RFC 2712 compliance:
4447 1. Implemented real KerberosWrapper, instead of just using
4448 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4449 2. Implemented optional authenticator field of KerberosWrapper.
4451 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4452 and authenticator structs; see crypto/krb5/.
4454 Generalized Kerberos calls to support multiple Kerberos libraries.
4455 [Vern Staats <staatsvr@asc.hpc.mil>,
4456 Jeffrey Altman <jaltman@columbia.edu>
4457 via Richard Levitte]
4459 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4460 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4461 values for each of the key sizes rather than having just
4462 parameters (and 'speed' generating keys each time).
4465 *) Speed up EVP routines.
4468 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4469 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4470 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4471 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4473 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4474 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4475 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4478 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4480 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4483 *) Added the OS2-EMX target.
4484 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4486 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4487 to support NCONF routines in extension code. New function CONF_set_nconf()
4488 to allow functions which take an NCONF to also handle the old LHASH
4489 structure: this means that the old CONF compatible routines can be
4490 retained (in particular wrt extensions) without having to duplicate the
4491 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4494 *) Enhance the general user interface with mechanisms for inner control
4495 and with possibilities to have yes/no kind of prompts.
4498 *) Change all calls to low level digest routines in the library and
4499 applications to use EVP. Add missing calls to HMAC_cleanup() and
4500 don't assume HMAC_CTX can be copied using memcpy().
4501 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4503 *) Add the possibility to control engines through control names but with
4504 arbitrary arguments instead of just a string.
4505 Change the key loaders to take a UI_METHOD instead of a callback
4506 function pointer. NOTE: this breaks binary compatibility with earlier
4507 versions of OpenSSL [engine].
4508 Adapt the nCipher code for these new conditions and add a card insertion
4512 *) Enhance the general user interface with mechanisms to better support
4513 dialog box interfaces, application-defined prompts, the possibility
4514 to use defaults (for example default passwords from somewhere else)
4515 and interrupts/cancellations.
4518 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4519 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4522 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4523 tidy up some unnecessarily weird code in 'sk_new()').
4524 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4526 *) Change the key loading routines for ENGINEs to use the same kind
4527 callback (pem_password_cb) as all other routines that need this
4531 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4532 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4533 than this minimum value is recommended.
4536 *) New random seeder for OpenVMS, using the system process statistics
4537 that are easily reachable.
4540 *) Windows apparently can't transparently handle global
4541 variables defined in DLLs. Initialisations such as:
4543 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4545 wont compile. This is used by the any applications that need to
4546 declare their own ASN1 modules. This was fixed by adding the option
4547 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4548 needed for static libraries under Win32.
4551 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4552 setting of purpose and trust fields. New X509_STORE trust and
4553 purpose functions and tidy up setting in other SSL functions.
4556 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4557 structure. These are inherited by X509_STORE_CTX when it is
4558 initialised. This allows various defaults to be set in the
4559 X509_STORE structure (such as flags for CRL checking and custom
4560 purpose or trust settings) for functions which only use X509_STORE_CTX
4561 internally such as S/MIME.
4563 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4564 trust settings if they are not set in X509_STORE. This allows X509_STORE
4565 purposes and trust (in S/MIME for example) to override any set by default.
4567 Add command line options for CRL checking to smime, s_client and s_server
4571 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4572 are set then the CRL is looked up in the X509_STORE structure and
4573 its validity and signature checked, then if the certificate is found
4574 in the CRL the verify fails with a revoked error.
4576 Various new CRL related callbacks added to X509_STORE_CTX structure.
4578 Command line options added to 'verify' application to support this.
4580 This needs some additional work, such as being able to handle multiple
4581 CRLs with different times, extension based lookup (rather than just
4582 by subject name) and ultimately more complete V2 CRL extension
4586 *) Add a general user interface API (crypto/ui/). This is designed
4587 to replace things like des_read_password and friends (backward
4588 compatibility functions using this new API are provided).
4589 The purpose is to remove prompting functions from the DES code
4590 section as well as provide for prompting through dialog boxes in
4591 a window system and the like.
4594 *) Add "ex_data" support to ENGINE so implementations can add state at a
4595 per-structure level rather than having to store it globally.
4598 *) Make it possible for ENGINE structures to be copied when retrieved by
4599 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4600 This causes the "original" ENGINE structure to act like a template,
4601 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4602 operational state can be localised to each ENGINE structure, despite the
4603 fact they all share the same "methods". New ENGINE structures returned in
4604 this case have no functional references and the return value is the single
4605 structural reference. This matches the single structural reference returned
4606 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4610 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4611 needs to match any other type at all we need to manually clear the
4615 *) Changes to the "openssl engine" utility to include;
4616 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4617 about an ENGINE's available control commands.
4618 - executing control commands from command line arguments using the
4619 '-pre' and '-post' switches. '-post' is only used if '-t' is
4620 specified and the ENGINE is successfully initialised. The syntax for
4621 the individual commands are colon-separated, for example;
4622 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4625 *) New dynamic control command support for ENGINEs. ENGINEs can now
4626 declare their own commands (numbers), names (strings), descriptions,
4627 and input types for run-time discovery by calling applications. A
4628 subset of these commands are implicitly classed as "executable"
4629 depending on their input type, and only these can be invoked through
4630 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4631 can be based on user input, config files, etc). The distinction is
4632 that "executable" commands cannot return anything other than a boolean
4633 result and can only support numeric or string input, whereas some
4634 discoverable commands may only be for direct use through
4635 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4636 pointers, or other custom uses. The "executable" commands are to
4637 support parameterisations of ENGINE behaviour that can be
4638 unambiguously defined by ENGINEs and used consistently across any
4639 OpenSSL-based application. Commands have been added to all the
4640 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4641 control over shared-library paths without source code alterations.
4644 *) Changed all ENGINE implementations to dynamically allocate their
4645 ENGINEs rather than declaring them statically. Apart from this being
4646 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4647 this also allows the implementations to compile without using the
4648 internal engine_int.h header.
4651 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4652 'const' value. Any code that should be able to modify a RAND_METHOD
4653 should already have non-const pointers to it (ie. they should only
4654 modify their own ones).
4657 *) Made a variety of little tweaks to the ENGINE code.
4658 - "atalla" and "ubsec" string definitions were moved from header files
4659 to C code. "nuron" string definitions were placed in variables
4660 rather than hard-coded - allowing parameterisation of these values
4661 later on via ctrl() commands.
4662 - Removed unused "#if 0"'d code.
4663 - Fixed engine list iteration code so it uses ENGINE_free() to release
4664 structural references.
4665 - Constified the RAND_METHOD element of ENGINE structures.
4666 - Constified various get/set functions as appropriate and added
4667 missing functions (including a catch-all ENGINE_cpy that duplicates
4668 all ENGINE values onto a new ENGINE except reference counts/state).
4669 - Removed NULL parameter checks in get/set functions. Setting a method
4670 or function to NULL is a way of cancelling out a previously set
4671 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4672 and doesn't justify the extra error symbols and code.
4673 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4674 flags from engine_int.h to engine.h.
4675 - Changed prototypes for ENGINE handler functions (init(), finish(),
4676 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4679 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4680 to the algorithm using long division. The binary algorithm can be
4681 used only if the modulus is odd. On 32-bit systems, it is faster
4682 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4683 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4684 up to 450 bits. In 64-bit environments, the binary algorithm
4685 appears to be advantageous for much longer moduli; here we use it
4686 for moduli up to 2048 bits.
4689 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4690 could not support the combine flag in choice fields.
4693 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4694 extensions from a certificate request to the certificate.
4697 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4698 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4699 file: this allows the display of the certificate about to be
4700 signed to be customised, to allow certain fields to be included
4701 or excluded and extension details. The old system didn't display
4702 multicharacter strings properly, omitted fields not in the policy
4703 and couldn't display additional details such as extensions.
4706 *) Function EC_POINTs_mul for multiple scalar multiplication
4707 of an arbitrary number of elliptic curve points
4708 \sum scalars[i]*points[i],
4709 optionally including the generator defined for the EC_GROUP:
4710 scalar*generator + \sum scalars[i]*points[i].
4712 EC_POINT_mul is a simple wrapper function for the typical case
4713 that the point list has just one item (besides the optional
4717 *) First EC_METHODs for curves over GF(p):
4719 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4720 operations and provides various method functions that can also
4721 operate with faster implementations of modular arithmetic.
4723 EC_GFp_mont_method() reuses most functions that are part of
4724 EC_GFp_simple_method, but uses Montgomery arithmetic.
4726 [Bodo Moeller; point addition and point doubling
4727 implementation directly derived from source code provided by
4728 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4730 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4731 crypto/ec/ec_lib.c):
4733 Curves are EC_GROUP objects (with an optional group generator)
4734 based on EC_METHODs that are built into the library.
4736 Points are EC_POINT objects based on EC_GROUP objects.
4738 Most of the framework would be able to handle curves over arbitrary
4739 finite fields, but as there are no obvious types for fields other
4740 than GF(p), some functions are limited to that for now.
4743 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4744 that the file contains a complete HTTP response.
4747 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4748 change the def and num file printf format specifier from "%-40sXXX"
4749 to "%-39s XXX". The latter will always guarantee a space after the
4750 field while the former will cause them to run together if the field
4751 is 40 of more characters long.
4754 *) Constify the cipher and digest 'method' functions and structures
4755 and modify related functions to take constant EVP_MD and EVP_CIPHER
4759 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4760 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4763 *) Modify EVP_Digest*() routines so they now return values. Although the
4764 internal software routines can never fail additional hardware versions
4768 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4770 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4771 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4774 ERR_R_NESTED_ASN1_ERROR
4776 ERR_R_MISSING_ASN1_EOS
4777 were 4 .. 9, conflicting with
4778 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4780 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4781 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4783 Add new error code 'ERR_R_INTERNAL_ERROR'.
4786 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4790 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4791 sets the subject name for a new request or supersedes the
4792 subject name in a given request. Formats that can be parsed are
4793 'CN=Some Name, OU=myOU, C=IT'
4795 'CN=Some Name/OU=myOU/C=IT'.
4797 Add options '-batch' and '-verbose' to 'openssl req'.
4798 [Massimiliano Pala <madwolf@hackmasters.net>]
4800 *) Introduce the possibility to access global variables through
4801 functions on platform were that's the best way to handle exporting
4802 global variables in shared libraries. To enable this functionality,
4803 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4804 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4805 is normally done by Configure or something similar).
4807 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4808 in the source file (foo.c) like this:
4810 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4811 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4813 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4814 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4816 OPENSSL_DECLARE_GLOBAL(int,foo);
4817 #define foo OPENSSL_GLOBAL_REF(foo)
4818 OPENSSL_DECLARE_GLOBAL(double,bar);
4819 #define bar OPENSSL_GLOBAL_REF(bar)
4821 The #defines are very important, and therefore so is including the
4822 header file everywhere where the defined globals are used.
4824 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4825 of ASN.1 items, but that structure is a bit different.
4827 The largest change is in util/mkdef.pl which has been enhanced with
4828 better and easier to understand logic to choose which symbols should
4829 go into the Windows .def files as well as a number of fixes and code
4830 cleanup (among others, algorithm keywords are now sorted
4831 lexicographically to avoid constant rewrites).
4834 *) In BN_div() keep a copy of the sign of 'num' before writing the
4835 result to 'rm' because if rm==num the value will be overwritten
4836 and produce the wrong result if 'num' is negative: this caused
4837 problems with BN_mod() and BN_nnmod().
4840 *) Function OCSP_request_verify(). This checks the signature on an
4841 OCSP request and verifies the signer certificate. The signer
4842 certificate is just checked for a generic purpose and OCSP request
4846 *) Add OCSP_check_validity() function to check the validity of OCSP
4847 responses. OCSP responses are prepared in real time and may only
4848 be a few seconds old. Simply checking that the current time lies
4849 between thisUpdate and nextUpdate max reject otherwise valid responses
4850 caused by either OCSP responder or client clock inaccuracy. Instead
4851 we allow thisUpdate and nextUpdate to fall within a certain period of
4852 the current time. The age of the response can also optionally be
4853 checked. Two new options -validity_period and -status_age added to
4857 *) If signature or public key algorithm is unrecognized print out its
4858 OID rather that just UNKNOWN.
4861 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4862 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4863 ID to be generated from the issuer certificate alone which can then be
4864 passed to OCSP_id_issuer_cmp().
4867 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4868 ASN1 modules to export functions returning ASN1_ITEM pointers
4869 instead of the ASN1_ITEM structures themselves. This adds several
4870 new macros which allow the underlying ASN1 function/structure to
4871 be accessed transparently. As a result code should not use ASN1_ITEM
4872 references directly (such as &X509_it) but instead use the relevant
4873 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4874 use of the new ASN1 code on platforms where exporting structures
4875 is problematical (for example in shared libraries) but exporting
4876 functions returning pointers to structures is not.
4879 *) Add support for overriding the generation of SSL/TLS session IDs.
4880 These callbacks can be registered either in an SSL_CTX or per SSL.
4881 The purpose of this is to allow applications to control, if they wish,
4882 the arbitrary values chosen for use as session IDs, particularly as it
4883 can be useful for session caching in multiple-server environments. A
4884 command-line switch for testing this (and any client code that wishes
4885 to use such a feature) has been added to "s_server".
4886 [Geoff Thorpe, Lutz Jaenicke]
4888 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4889 of the form '#if defined(...) || defined(...) || ...' and
4890 '#if !defined(...) && !defined(...) && ...'. This also avoids
4891 the growing number of special cases it was previously handling.
4894 *) Make all configuration macros available for application by making
4895 sure they are available in opensslconf.h, by giving them names starting
4896 with "OPENSSL_" to avoid conflicts with other packages and by making
4897 sure e_os2.h will cover all platform-specific cases together with
4899 Additionally, it is now possible to define configuration/platform-
4900 specific names (called "system identities"). In the C code, these
4901 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4902 macro with the name beginning with "OPENSSL_SYS_", which is determined
4903 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4907 *) New option -set_serial to 'req' and 'x509' this allows the serial
4908 number to use to be specified on the command line. Previously self
4909 signed certificates were hard coded with serial number 0 and the
4910 CA options of 'x509' had to use a serial number in a file which was
4914 *) New options to 'ca' utility to support V2 CRL entry extensions.
4915 Currently CRL reason, invalidity date and hold instruction are
4916 supported. Add new CRL extensions to V3 code and some new objects.
4919 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4920 disable standard block padding (aka PKCS#5 padding) in the EVP
4921 API, which was previously mandatory. This means that the data is
4922 not padded in any way and so the total length much be a multiple
4923 of the block size, otherwise an error occurs.
4926 *) Initial (incomplete) OCSP SSL support.
4929 *) New function OCSP_parse_url(). This splits up a URL into its host,
4930 port and path components: primarily to parse OCSP URLs. New -url
4931 option to ocsp utility.
4934 *) New nonce behavior. The return value of OCSP_check_nonce() now
4935 reflects the various checks performed. Applications can decide
4936 whether to tolerate certain situations such as an absent nonce
4937 in a response when one was present in a request: the ocsp application
4938 just prints out a warning. New function OCSP_add1_basic_nonce()
4939 this is to allow responders to include a nonce in a response even if
4940 the request is nonce-less.
4943 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4944 skipped when using openssl x509 multiple times on a single input file,
4945 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4948 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4949 set string type: to handle setting ASN1_TIME structures. Fix ca
4950 utility to correctly initialize revocation date of CRLs.
4953 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4954 the clients preferred ciphersuites and rather use its own preferences.
4955 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4956 Internet Explorer by ensuring unchanged hash method during stepup.
4957 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4960 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4961 to aes and add a new 'exist' option to print out symbols that don't
4965 *) Additional options to ocsp utility to allow flags to be set and
4966 additional certificates supplied.
4969 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4970 OCSP client a number of certificate to only verify the response
4974 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4975 handle the new API. Currently only ECB, CBC modes supported. Add new
4978 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4979 Encryption Standard (AES) Ciphersuites for Transport Layer
4980 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4981 not enabled by default and were not part of the "ALL" ciphersuite
4982 alias because they were not yet official; they could be
4983 explicitly requested by specifying the "AESdraft" ciphersuite
4984 group alias. In the final release of OpenSSL 0.9.7, the group
4985 alias is called "AES" and is part of "ALL".)
4986 [Ben Laurie, Steve Henson, Bodo Moeller]
4988 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4989 request to response.
4992 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4993 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4994 extract information from a certificate request. OCSP_response_create()
4995 creates a response and optionally adds a basic response structure.
4996 OCSP_basic_add1_status() adds a complete single response to a basic
4997 response and returns the OCSP_SINGLERESP structure just added (to allow
4998 extensions to be included for example). OCSP_basic_add1_cert() adds a
4999 certificate to a basic response and OCSP_basic_sign() signs a basic
5000 response with various flags. New helper functions ASN1_TIME_check()
5001 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5002 (converts ASN1_TIME to GeneralizedTime).
5005 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5006 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5007 structure from a certificate. X509_pubkey_digest() digests the public_key
5008 contents: this is used in various key identifiers.
5011 *) Make sk_sort() tolerate a NULL argument.
5012 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5014 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5015 passed by the function are trusted implicitly. If any of them signed the
5016 response then it is assumed to be valid and is not verified.
5019 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5020 to data. This was previously part of the PKCS7 ASN1 code. This
5021 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5022 [Steve Henson, reported by Kenneth R. Robinette
5023 <support@securenetterm.com>]
5025 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5026 routines: without these tracing memory leaks is very painful.
5027 Fix leaks in PKCS12 and PKCS7 routines.
5030 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5031 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5032 effectively meant GeneralizedTime would never be used. Now it
5033 is initialised to -1 but X509_time_adj() now has to check the value
5034 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5035 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5036 [Steve Henson, reported by Kenneth R. Robinette
5037 <support@securenetterm.com>]
5039 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5040 result in a zero length in the ASN1_INTEGER structure which was
5041 not consistent with the structure when d2i_ASN1_INTEGER() was used
5042 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5043 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5044 where it did not print out a minus for negative ASN1_INTEGER.
5047 *) Add summary printout to ocsp utility. The various functions which
5048 convert status values to strings have been renamed to:
5049 OCSP_response_status_str(), OCSP_cert_status_str() and
5050 OCSP_crl_reason_str() and are no longer static. New options
5051 to verify nonce values and to disable verification. OCSP response
5052 printout format cleaned up.
5055 *) Add additional OCSP certificate checks. These are those specified
5056 in RFC2560. This consists of two separate checks: the CA of the
5057 certificate being checked must either be the OCSP signer certificate
5058 or the issuer of the OCSP signer certificate. In the latter case the
5059 OCSP signer certificate must contain the OCSP signing extended key
5060 usage. This check is performed by attempting to match the OCSP
5061 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5062 in the OCSP_CERTID structures of the response.
5065 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5066 and related routines. This uses the standard OpenSSL certificate
5067 verify routines to perform initial checks (just CA validity) and
5068 to obtain the certificate chain. Then additional checks will be
5069 performed on the chain. Currently the root CA is checked to see
5070 if it is explicitly trusted for OCSP signing. This is used to set
5071 a root CA as a global signing root: that is any certificate that
5072 chains to that CA is an acceptable OCSP signing certificate.
5075 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5076 extensions from a separate configuration file.
5077 As when reading extensions from the main configuration file,
5078 the '-extensions ...' option may be used for specifying the
5080 [Massimiliano Pala <madwolf@comune.modena.it>]
5082 *) New OCSP utility. Allows OCSP requests to be generated or
5083 read. The request can be sent to a responder and the output
5084 parsed, outputed or printed in text form. Not complete yet:
5085 still needs to check the OCSP response validity.
5088 *) New subcommands for 'openssl ca':
5089 'openssl ca -status <serial>' prints the status of the cert with
5090 the given serial number (according to the index file).
5091 'openssl ca -updatedb' updates the expiry status of certificates
5093 [Massimiliano Pala <madwolf@comune.modena.it>]
5095 *) New '-newreq-nodes' command option to CA.pl. This is like
5096 '-newreq', but calls 'openssl req' with the '-nodes' option
5097 so that the resulting key is not encrypted.
5098 [Damien Miller <djm@mindrot.org>]
5100 *) New configuration for the GNU Hurd.
5101 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5103 *) Initial code to implement OCSP basic response verify. This
5104 is currently incomplete. Currently just finds the signer's
5105 certificate and verifies the signature on the response.
5108 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5109 value of OPENSSLDIR. This is available via the new '-d' option
5110 to 'openssl version', and is also included in 'openssl version -a'.
5113 *) Allowing defining memory allocation callbacks that will be given
5114 file name and line number information in additional arguments
5115 (a const char* and an int). The basic functionality remains, as
5116 well as the original possibility to just replace malloc(),
5117 realloc() and free() by functions that do not know about these
5118 additional arguments. To register and find out the current
5119 settings for extended allocation functions, the following
5120 functions are provided:
5122 CRYPTO_set_mem_ex_functions
5123 CRYPTO_set_locked_mem_ex_functions
5124 CRYPTO_get_mem_ex_functions
5125 CRYPTO_get_locked_mem_ex_functions
5127 These work the same way as CRYPTO_set_mem_functions and friends.
5128 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5129 extended allocation function is enabled.
5130 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5131 a conventional allocation function is enabled.
5132 [Richard Levitte, Bodo Moeller]
5134 *) Finish off removing the remaining LHASH function pointer casts.
5135 There should no longer be any prototype-casting required when using
5136 the LHASH abstraction, and any casts that remain are "bugs". See
5137 the callback types and macros at the head of lhash.h for details
5138 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5141 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5142 If /dev/[u]random devices are not available or do not return enough
5143 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5145 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5146 /etc/entropy will be queried once each in this sequence, quering stops
5147 when enough entropy was collected without querying more sockets.
5150 *) Change the Unix RAND_poll() variant to be able to poll several
5151 random devices, as specified by DEVRANDOM, until a sufficient amount
5152 of data has been collected. We spend at most 10 ms on each file
5153 (select timeout) and read in non-blocking mode. DEVRANDOM now
5154 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5155 (previously it was just the string "/dev/urandom"), so on typical
5156 platforms the 10 ms delay will never occur.
5157 Also separate out the Unix variant to its own file, rand_unix.c.
5158 For VMS, there's a currently-empty rand_vms.c.
5161 *) Move OCSP client related routines to ocsp_cl.c. These
5162 provide utility functions which an application needing
5163 to issue a request to an OCSP responder and analyse the
5164 response will typically need: as opposed to those which an
5165 OCSP responder itself would need which will be added later.
5167 OCSP_request_sign() signs an OCSP request with an API similar
5168 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5169 response. OCSP_response_get1_basic() extracts basic response
5170 from response. OCSP_resp_find_status(): finds and extracts status
5171 information from an OCSP_CERTID structure (which will be created
5172 when the request structure is built). These are built from lower
5173 level functions which work on OCSP_SINGLERESP structures but
5174 wont normally be used unless the application wishes to examine
5175 extensions in the OCSP response for example.
5177 Replace nonce routines with a pair of functions.
5178 OCSP_request_add1_nonce() adds a nonce value and optionally
5179 generates a random value. OCSP_check_nonce() checks the
5180 validity of the nonce in an OCSP response.
5183 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5184 This doesn't copy the supplied OCSP_CERTID and avoids the
5185 need to free up the newly created id. Change return type
5186 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5187 This can then be used to add extensions to the request.
5188 Deleted OCSP_request_new(), since most of its functionality
5189 is now in OCSP_REQUEST_new() (and the case insensitive name
5190 clash) apart from the ability to set the request name which
5191 will be added elsewhere.
5194 *) Update OCSP API. Remove obsolete extensions argument from
5195 various functions. Extensions are now handled using the new
5196 OCSP extension code. New simple OCSP HTTP function which
5197 can be used to send requests and parse the response.
5200 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5201 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5202 uses the special reorder version of SET OF to sort the attributes
5203 and reorder them to match the encoded order. This resolves a long
5204 standing problem: a verify on a PKCS7 structure just after signing
5205 it used to fail because the attribute order did not match the
5206 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5207 it uses the received order. This is necessary to tolerate some broken
5208 software that does not order SET OF. This is handled by encoding
5209 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5210 to produce the required SET OF.
5213 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5214 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5215 files to get correct declarations of the ASN.1 item variables.
5218 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5219 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5220 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5221 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5222 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5223 ASN1_ITEM and no wrapper functions.
5226 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5227 replace the old function pointer based I/O routines. Change most of
5228 the *_d2i_bio() and *_d2i_fp() functions to use these.
5231 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5232 lines, recognice more "algorithms" that can be deselected, and make
5233 it complain about algorithm deselection that isn't recognised.
5236 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5237 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5238 to use new functions. Add NO_ASN1_OLD which can be set to remove
5239 some old style ASN1 functions: this can be used to determine if old
5240 code will still work when these eventually go away.
5243 *) New extension functions for OCSP structures, these follow the
5244 same conventions as certificates and CRLs.
5247 *) New function X509V3_add1_i2d(). This automatically encodes and
5248 adds an extension. Its behaviour can be customised with various
5249 flags to append, replace or delete. Various wrappers added for
5250 certifcates and CRLs.
5253 *) Fix to avoid calling the underlying ASN1 print routine when
5254 an extension cannot be parsed. Correct a typo in the
5255 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5258 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5259 entries for variables.
5262 *) Add functionality to apps/openssl.c for detecting locking
5263 problems: As the program is single-threaded, all we have
5264 to do is register a locking callback using an array for
5265 storing which locks are currently held by the program.
5268 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5269 SSL_get_ex_data_X509_STORE_idx(), which is used in
5270 ssl_verify_cert_chain() and thus can be called at any time
5271 during TLS/SSL handshakes so that thread-safety is essential.
5272 Unfortunately, the ex_data design is not at all suited
5273 for multi-threaded use, so it probably should be abolished.
5276 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5277 [Broadcom, tweaked and integrated by Geoff Thorpe]
5279 *) Move common extension printing code to new function
5280 X509V3_print_extensions(). Reorganise OCSP print routines and
5281 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5284 *) New function X509_signature_print() to remove duplication in some
5288 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5289 set (this was treated exactly the same as SET OF previously). This
5290 is used to reorder the STACK representing the structure to match the
5291 encoding. This will be used to get round a problem where a PKCS7
5292 structure which was signed could not be verified because the STACK
5293 order did not reflect the encoded order.
5296 *) Reimplement the OCSP ASN1 module using the new code.
5299 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5300 for its ASN1 operations. The old style function pointers still exist
5301 for now but they will eventually go away.
5304 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5305 completely replaces the old ASN1 functionality with a table driven
5306 encoder and decoder which interprets an ASN1_ITEM structure describing
5307 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5308 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5309 has also been converted to the new form.
5312 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5313 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5314 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5315 for negative moduli.
5318 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5319 of not touching the result's sign bit.
5322 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5326 *) Changed the LHASH code to use prototypes for callbacks, and created
5327 macros to declare and implement thin (optionally static) functions
5328 that provide type-safety and avoid function pointer casting for the
5329 type-specific callbacks.
5332 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5334 [Veers Staats <staatsvr@asc.hpc.mil>,
5335 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5337 *) Reformat the FAQ so the different questions and answers can be divided
5338 in sections depending on the subject.
5341 *) Have the zlib compression code load ZLIB.DLL dynamically under
5345 *) New function BN_mod_sqrt for computing square roots modulo a prime
5346 (using the probabilistic Tonelli-Shanks algorithm unless
5347 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5348 be handled deterministically).
5349 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5351 *) Make BN_mod_inverse faster by explicitly handling small quotients
5352 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5353 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5356 *) New function BN_kronecker.
5359 *) Fix BN_gcd so that it works on negative inputs; the result is
5360 positive unless both parameters are zero.
5361 Previously something reasonably close to an infinite loop was
5362 possible because numbers could be growing instead of shrinking
5363 in the implementation of Euclid's algorithm.
5366 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5367 sign of the number in question.
5369 Fix BN_is_word(a,w) to work correctly for w == 0.
5371 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5372 because its test if the absolute value of 'a' equals 'w'.
5373 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5374 it exists mostly for use in the implementations of BN_is_zero(),
5375 BN_is_one(), and BN_is_word().
5378 *) New function BN_swap.
5381 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5382 the exponentiation functions are more likely to produce reasonable
5383 results on negative inputs.
5386 *) Change BN_mod_mul so that the result is always non-negative.
5387 Previously, it could be negative if one of the factors was negative;
5388 I don't think anyone really wanted that behaviour.
5391 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5392 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5393 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5394 and add new functions:
5403 BN_mod_lshift1_quick
5407 These functions always generate non-negative results.
5409 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5410 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5412 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5413 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5414 be reduced modulo m.
5415 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5418 The following entry accidentily appeared in the CHANGES file
5419 distributed with OpenSSL 0.9.7. The modifications described in
5420 it do *not* apply to OpenSSL 0.9.7.
5422 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5423 was actually never needed) and in BN_mul(). The removal in BN_mul()
5424 required a small change in bn_mul_part_recursive() and the addition
5425 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5426 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5427 bn_sub_words() and bn_add_words() except they take arrays with
5432 *) In 'openssl passwd', verify passwords read from the terminal
5433 unless the '-salt' option is used (which usually means that
5434 verification would just waste user's time since the resulting
5435 hash is going to be compared with some given password hash)
5436 or the new '-noverify' option is used.
5438 This is an incompatible change, but it does not affect
5439 non-interactive use of 'openssl passwd' (passwords on the command
5440 line, '-stdin' option, '-in ...' option) and thus should not
5444 *) Remove all references to RSAref, since there's no more need for it.
5447 *) Make DSO load along a path given through an environment variable
5448 (SHLIB_PATH) with shl_load().
5451 *) Constify the ENGINE code as a result of BIGNUM constification.
5452 Also constify the RSA code and most things related to it. In a
5453 few places, most notable in the depth of the ASN.1 code, ugly
5454 casts back to non-const were required (to be solved at a later
5458 *) Make it so the openssl application has all engines loaded by default.
5461 *) Constify the BIGNUM routines a little more.
5464 *) Add the following functions:
5466 ENGINE_load_cswift()
5468 ENGINE_load_atalla()
5470 ENGINE_load_builtin_engines()
5472 That way, an application can itself choose if external engines that
5473 are built-in in OpenSSL shall ever be used or not. The benefit is
5474 that applications won't have to be linked with libdl or other dso
5475 libraries unless it's really needed.
5477 Changed 'openssl engine' to load all engines on demand.
5478 Changed the engine header files to avoid the duplication of some
5479 declarations (they differed!).
5482 *) 'openssl engine' can now list capabilities.
5485 *) Better error reporting in 'openssl engine'.
5488 *) Never call load_dh_param(NULL) in s_server.
5491 *) Add engine application. It can currently list engines by name and
5492 identity, and test if they are actually available.
5495 *) Improve RPM specification file by forcing symbolic linking and making
5496 sure the installed documentation is also owned by root.root.
5497 [Damien Miller <djm@mindrot.org>]
5499 *) Give the OpenSSL applications more possibilities to make use of
5500 keys (public as well as private) handled by engines.
5503 *) Add OCSP code that comes from CertCo.
5506 *) Add VMS support for the Rijndael code.
5509 *) Added untested support for Nuron crypto accelerator.
5512 *) Add support for external cryptographic devices. This code was
5513 previously distributed separately as the "engine" branch.
5514 [Geoff Thorpe, Richard Levitte]
5516 *) Rework the filename-translation in the DSO code. It is now possible to
5517 have far greater control over how a "name" is turned into a filename
5518 depending on the operating environment and any oddities about the
5519 different shared library filenames on each system.
5522 *) Support threads on FreeBSD-elf in Configure.
5525 *) Fix for SHA1 assembly problem with MASM: it produces
5526 warnings about corrupt line number information when assembling
5527 with debugging information. This is caused by the overlapping
5529 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5532 NCONF_get_number() has no error checking at all. As a replacement,
5533 NCONF_get_number_e() is defined (_e for "error checking") and is
5534 promoted strongly. The old NCONF_get_number is kept around for
5535 binary backward compatibility.
5536 Make it possible for methods to load from something other than a BIO,
5537 by providing a function pointer that is given a name instead of a BIO.
5538 For example, this could be used to load configuration data from an
5542 *) Fix for non blocking accept BIOs. Added new I/O special reason
5543 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5544 with non blocking I/O was not possible because no retry code was
5545 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5549 *) Added the beginnings of Rijndael support.
5552 *) Fix for bug in DirectoryString mask setting. Add support for
5553 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5554 to allow certificate printing to more controllable, additional
5555 'certopt' option to 'x509' to allow new printing options to be
5559 *) Clean old EAY MD5 hack from e_os.h.
5562 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5564 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5565 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5566 [Joe Orton, Steve Henson]
5568 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5570 *) Fix additional bug revealed by the NISCC test suite:
5572 Stop bug triggering large recursion when presented with
5573 certain ASN.1 tags (CVE-2003-0851)
5576 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5578 *) Fix various bugs revealed by running the NISCC test suite:
5580 Stop out of bounds reads in the ASN1 code when presented with
5581 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5583 If verify callback ignores invalid public key errors don't try to check
5584 certificate signature with the NULL public key.
5588 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5589 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5593 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5594 extra data after the compression methods not only for TLS 1.0
5595 but also for SSL 3.0 (as required by the specification).
5596 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5598 *) Change X509_certificate_type() to mark the key as exported/exportable
5599 when it's 512 *bits* long, not 512 bytes.
5602 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5604 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5605 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5606 a protocol version number mismatch like a decryption error
5607 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5610 *) Turn on RSA blinding by default in the default implementation
5611 to avoid a timing attack. Applications that don't want it can call
5612 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5613 They would be ill-advised to do so in most cases.
5614 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5616 *) Change RSA blinding code so that it works when the PRNG is not
5617 seeded (in this case, the secret RSA exponent is abused as
5618 an unpredictable seed -- if it is not unpredictable, there
5619 is no point in blinding anyway). Make RSA blinding thread-safe
5620 by remembering the creator's thread ID in rsa->blinding and
5621 having all other threads use local one-time blinding factors
5622 (this requires more computation than sharing rsa->blinding, but
5623 avoids excessive locking; and if an RSA object is not shared
5624 between threads, blinding will still be very fast).
5627 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5629 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5630 via timing by performing a MAC computation even if incorrrect
5631 block cipher padding has been found. This is a countermeasure
5632 against active attacks where the attacker has to distinguish
5633 between bad padding and a MAC verification error. (CVE-2003-0078)
5635 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5636 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5637 Martin Vuagnoux (EPFL, Ilion)]
5639 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5641 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5642 memory from it's contents. This is done with a counter that will
5643 place alternating values in each byte. This can be used to solve
5644 two issues: 1) the removal of calls to memset() by highly optimizing
5645 compilers, and 2) cleansing with other values than 0, since those can
5646 be read through on certain media, for example a swap space on disk.
5649 *) Bugfix: client side session caching did not work with external caching,
5650 because the session->cipher setting was not restored when reloading
5651 from the external cache. This problem was masked, when
5652 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5653 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5656 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5657 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5658 [Zeev Lieber <zeev-l@yahoo.com>]
5660 *) Undo an undocumented change introduced in 0.9.6e which caused
5661 repeated calls to OpenSSL_add_all_ciphers() and
5662 OpenSSL_add_all_digests() to be ignored, even after calling
5666 *) Change the default configuration reader to deal with last line not
5667 being properly terminated.
5670 *) Change X509_NAME_cmp() so it applies the special rules on handling
5671 DN values that are of type PrintableString, as well as RDNs of type
5672 emailAddress where the value has the type ia5String.
5673 [stefank@valicert.com via Richard Levitte]
5675 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5676 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5677 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5678 the bitwise-OR of the two for use by the majority of applications
5679 wanting this behaviour, and update the docs. The documented
5680 behaviour and actual behaviour were inconsistent and had been
5681 changing anyway, so this is more a bug-fix than a behavioural
5683 [Geoff Thorpe, diagnosed by Nadav Har'El]
5685 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5686 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5689 *) Fix initialization code race conditions in
5690 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5691 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5692 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5693 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5694 ssl2_get_cipher_by_char(),
5695 ssl3_get_cipher_by_char().
5696 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5698 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5699 the cached sessions are flushed, as the remove_cb() might use ex_data
5700 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5701 (see [openssl.org #212]).
5702 [Geoff Thorpe, Lutz Jaenicke]
5704 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5705 length, instead of the encoding length to d2i_ASN1_OBJECT.
5708 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5710 *) [In 0.9.6g-engine release:]
5711 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5712 [Lynn Gazis <lgazis@rainbow.com>]
5714 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5716 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5717 and get fix the header length calculation.
5718 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5719 Alon Kantor <alonk@checkpoint.com> (and others),
5722 *) Use proper error handling instead of 'assertions' in buffer
5723 overflow checks added in 0.9.6e. This prevents DoS (the
5724 assertions could call abort()).
5725 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5727 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5729 *) Add various sanity checks to asn1_get_length() to reject
5730 the ASN1 length bytes if they exceed sizeof(long), will appear
5731 negative or the content length exceeds the length of the
5733 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5735 *) Fix cipher selection routines: ciphers without encryption had no flags
5736 for the cipher strength set and where therefore not handled correctly
5737 by the selection routines (PR #130).
5740 *) Fix EVP_dsa_sha macro.
5744 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5745 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5746 that was added in OpenSSL 0.9.6d.
5748 As the countermeasure turned out to be incompatible with some
5749 broken SSL implementations, the new option is part of SSL_OP_ALL.
5750 SSL_OP_ALL is usually employed when compatibility with weird SSL
5751 implementations is desired (e.g. '-bugs' option to 's_client' and
5752 's_server'), so the new option is automatically set in many
5756 *) Changes in security patch:
5758 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5759 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5760 Air Force Materiel Command, USAF, under agreement number
5763 *) Add various sanity checks to asn1_get_length() to reject
5764 the ASN1 length bytes if they exceed sizeof(long), will appear
5765 negative or the content length exceeds the length of the
5766 supplied buffer. (CVE-2002-0659)
5767 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5769 *) Assertions for various potential buffer overflows, not known to
5771 [Ben Laurie (CHATS)]
5773 *) Various temporary buffers to hold ASCII versions of integers were
5774 too small for 64 bit platforms. (CVE-2002-0655)
5775 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5777 *) Remote buffer overflow in SSL3 protocol - an attacker could
5778 supply an oversized session ID to a client. (CVE-2002-0656)
5779 [Ben Laurie (CHATS)]
5781 *) Remote buffer overflow in SSL2 protocol - an attacker could
5782 supply an oversized client master key. (CVE-2002-0656)
5783 [Ben Laurie (CHATS)]
5785 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5787 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5788 encoded as NULL) with id-dsa-with-sha1.
5789 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5791 *) Check various X509_...() return values in apps/req.c.
5792 [Nils Larsch <nla@trustcenter.de>]
5794 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5795 an end-of-file condition would erronously be flagged, when the CRLF
5796 was just at the end of a processed block. The bug was discovered when
5797 processing data through a buffering memory BIO handing the data to a
5798 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5799 <ptsekov@syntrex.com> and Nedelcho Stanev.
5802 *) Implement a countermeasure against a vulnerability recently found
5803 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5804 before application data chunks to avoid the use of known IVs
5805 with data potentially chosen by the attacker.
5808 *) Fix length checks in ssl3_get_client_hello().
5811 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5812 to prevent ssl3_read_internal() from incorrectly assuming that
5813 ssl3_read_bytes() found application data while handshake
5814 processing was enabled when in fact s->s3->in_read_app_data was
5815 merely automatically cleared during the initial handshake.
5816 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5818 *) Fix object definitions for Private and Enterprise: they were not
5819 recognized in their shortname (=lowercase) representation. Extend
5820 obj_dat.pl to issue an error when using undefined keywords instead
5821 of silently ignoring the problem (Svenning Sorensen
5822 <sss@sss.dnsalias.net>).
5825 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5826 generators, i.e. generators other than 2 and 5. (Previously, the
5827 code did not properly initialise the 'add' and 'rem' values to
5828 BN_generate_prime().)
5830 In the new general case, we do not insist that 'generator' is
5831 actually a primitive root: This requirement is rather pointless;
5832 a generator of the order-q subgroup is just as good, if not
5836 *) Map new X509 verification errors to alerts. Discovered and submitted by
5837 Tom Wu <tom@arcot.com>.
5840 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5841 returning non-zero before the data has been completely received
5842 when using non-blocking I/O.
5843 [Bodo Moeller; problem pointed out by John Hughes]
5845 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5846 [Ben Laurie, Lutz Jaenicke]
5848 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5849 Yoram Zahavi <YoramZ@gilian.com>).
5852 *) Add information about CygWin 1.3 and on, and preserve proper
5853 configuration for the versions before that.
5854 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5856 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5857 check whether we deal with a copy of a session and do not delete from
5858 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5859 <izhar@checkpoint.com>.
5862 *) Do not store session data into the internal session cache, if it
5863 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5864 flag is set). Proposed by Aslam <aslam@funk.com>.
5867 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5871 *) [In 0.9.6d-engine release:]
5872 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5873 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5875 *) Add the configuration target linux-s390x.
5876 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5878 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5879 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5880 variable as an indication that a ClientHello message has been
5881 received. As the flag value will be lost between multiple
5882 invocations of ssl3_accept when using non-blocking I/O, the
5883 function may not be aware that a handshake has actually taken
5884 place, thus preventing a new session from being added to the
5887 To avoid this problem, we now set s->new_session to 2 instead of
5888 using a local variable.
5889 [Lutz Jaenicke, Bodo Moeller]
5891 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5892 if the SSL_R_LENGTH_MISMATCH error is detected.
5893 [Geoff Thorpe, Bodo Moeller]
5895 *) New 'shared_ldflag' column in Configure platform table.
5898 *) Fix EVP_CIPHER_mode macro.
5899 ["Dan S. Camper" <dan@bti.net>]
5901 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5902 type, we must throw them away by setting rr->length to 0.
5903 [D P Chang <dpc@qualys.com>]
5905 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5907 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5908 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5909 worked incorrectly for those cases where range = 10..._2 and
5910 3*range is two bits longer than range.)
5913 *) Only add signing time to PKCS7 structures if it is not already
5917 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5918 OBJ_ld_ce should be OBJ_id_ce.
5919 Also some ip-pda OIDs in crypto/objects/objects.txt were
5920 incorrect (cf. RFC 3039).
5921 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5923 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5924 returns early because it has nothing to do.
5925 [Andy Schneider <andy.schneider@bjss.co.uk>]
5927 *) [In 0.9.6c-engine release:]
5928 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5929 [Andy Schneider <andy.schneider@bjss.co.uk>]
5931 *) [In 0.9.6c-engine release:]
5932 Add support for Cryptographic Appliance's keyserver technology.
5933 (Use engine 'keyclient')
5934 [Cryptographic Appliances and Geoff Thorpe]
5936 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5937 is called via tools/c89.sh because arguments have to be
5938 rearranged (all '-L' options must appear before the first object
5940 [Richard Shapiro <rshapiro@abinitio.com>]
5942 *) [In 0.9.6c-engine release:]
5943 Add support for Broadcom crypto accelerator cards, backported
5945 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5947 *) [In 0.9.6c-engine release:]
5948 Add support for SureWare crypto accelerator cards from
5949 Baltimore Technologies. (Use engine 'sureware')
5950 [Baltimore Technologies and Mark Cox]
5952 *) [In 0.9.6c-engine release:]
5953 Add support for crypto accelerator cards from Accelerated
5954 Encryption Processing, www.aep.ie. (Use engine 'aep')
5955 [AEP Inc. and Mark Cox]
5957 *) Add a configuration entry for gcc on UnixWare.
5958 [Gary Benson <gbenson@redhat.com>]
5960 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5961 messages are stored in a single piece (fixed-length part and
5962 variable-length part combined) and fix various bugs found on the way.
5965 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5966 instead. BIO_gethostbyname() does not know what timeouts are
5967 appropriate, so entries would stay in cache even when they have
5969 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5971 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5972 faced with a pathologically small ClientHello fragment that does
5973 not contain client_version: Instead of aborting with an error,
5974 simply choose the highest available protocol version (i.e.,
5975 TLS 1.0 unless it is disabled). In practice, ClientHello
5976 messages are never sent like this, but this change gives us
5977 strictly correct behaviour at least for TLS.
5980 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5981 never resets s->method to s->ctx->method when called from within
5982 one of the SSL handshake functions.
5983 [Bodo Moeller; problem pointed out by Niko Baric]
5985 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5986 (sent using the client's version number) if client_version is
5987 smaller than the protocol version in use. Also change
5988 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5989 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5990 the client will at least see that alert.
5993 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5997 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5998 client receives HelloRequest while in a handshake.
5999 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6001 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6002 should end in 'break', not 'goto end' which circuments various
6003 cleanups done in state SSL_ST_OK. But session related stuff
6004 must be disabled for SSL_ST_OK in the case that we just sent a
6007 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6008 before just sending a HelloRequest.
6009 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6011 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6012 reveal whether illegal block cipher padding was found or a MAC
6013 verification error occured. (Neither SSLerr() codes nor alerts
6014 are directly visible to potential attackers, but the information
6015 may leak via logfiles.)
6017 Similar changes are not required for the SSL 2.0 implementation
6018 because the number of padding bytes is sent in clear for SSL 2.0,
6019 and the extra bytes are just ignored. However ssl/s2_pkt.c
6020 failed to verify that the purported number of padding bytes is in
6024 *) Add OpenUNIX-8 support including shared libraries
6025 (Boyd Lynn Gerber <gerberb@zenez.com>).
6028 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6029 'wristwatch attack' using huge encoding parameters (cf.
6030 James H. Manger's CRYPTO 2001 paper). Note that the
6031 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6032 encoding parameters and hence was not vulnerable.
6035 *) BN_sqr() bug fix.
6036 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6038 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6039 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6040 followed by modular reduction.
6041 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6043 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6044 equivalent based on BN_pseudo_rand() instead of BN_rand().
6047 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6048 This function was broken, as the check for a new client hello message
6049 to handle SGC did not allow these large messages.
6050 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6053 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6056 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6057 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6060 *) Rework the configuration and shared library support for Tru64 Unix.
6061 The configuration part makes use of modern compiler features and
6062 still retains old compiler behavior for those that run older versions
6063 of the OS. The shared library support part includes a variant that
6064 uses the RPATH feature, and is available through the special
6065 configuration target "alpha-cc-rpath", which will never be selected
6067 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6069 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6070 with the same message size as in ssl3_get_certificate_request().
6071 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6072 messages might inadvertently be reject as too long.
6073 [Petr Lampa <lampa@fee.vutbr.cz>]
6075 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6078 *) Modified SSL library such that the verify_callback that has been set
6079 specificly for an SSL object with SSL_set_verify() is actually being
6080 used. Before the change, a verify_callback set with this function was
6081 ignored and the verify_callback() set in the SSL_CTX at the time of
6082 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6083 to allow the necessary settings.
6086 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6087 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6088 done automatically (in contradiction to the requirements of the C
6089 standard). This made problems when used from OpenSSH.
6092 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6093 dh->length and always used
6095 BN_rand_range(priv_key, dh->p).
6097 BN_rand_range() is not necessary for Diffie-Hellman, and this
6098 specific range makes Diffie-Hellman unnecessarily inefficient if
6099 dh->length (recommended exponent length) is much smaller than the
6100 length of dh->p. We could use BN_rand_range() if the order of
6101 the subgroup was stored in the DH structure, but we only have
6106 BN_rand(priv_key, l, ...)
6108 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6114 RSA_eay_public_encrypt
6115 RSA_eay_private_decrypt
6116 RSA_eay_private_encrypt (signing)
6117 RSA_eay_public_decrypt (signature verification)
6119 (default implementations for RSA_public_encrypt,
6120 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6121 always reject numbers >= n.
6124 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6125 to synchronize access to 'locking_thread'. This is necessary on
6126 systems where access to 'locking_thread' (an 'unsigned long'
6127 variable) is not atomic.
6130 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6131 *before* setting the 'crypto_lock_rand' flag. The previous code had
6132 a race condition if 0 is a valid thread ID.
6133 [Travis Vitek <vitek@roguewave.com>]
6135 *) Add support for shared libraries under Irix.
6136 [Albert Chin-A-Young <china@thewrittenword.com>]
6138 *) Add configuration option to build on Linux on both big-endian and
6140 [Ralf Baechle <ralf@uni-koblenz.de>]
6142 *) Add the possibility to create shared libraries on HP-UX.
6145 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6147 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6148 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6149 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6150 PRNG state recovery was possible based on the output of
6151 one PRNG request appropriately sized to gain knowledge on
6152 'md' followed by enough consecutive 1-byte PRNG requests
6153 to traverse all of 'state'.
6155 1. When updating 'md_local' (the current thread's copy of 'md')
6156 during PRNG output generation, hash all of the previous
6157 'md_local' value, not just the half used for PRNG output.
6159 2. Make the number of bytes from 'state' included into the hash
6160 independent from the number of PRNG bytes requested.
6162 The first measure alone would be sufficient to avoid
6163 Markku-Juhani's attack. (Actually it had never occurred
6164 to me that the half of 'md_local' used for chaining was the
6165 half from which PRNG output bytes were taken -- I had always
6166 assumed that the secret half would be used.) The second
6167 measure makes sure that additional data from 'state' is never
6168 mixed into 'md_local' in small portions; this heuristically
6169 further strengthens the PRNG.
6172 *) Fix crypto/bn/asm/mips3.s.
6175 *) When only the key is given to "enc", the IV is undefined. Print out
6176 an error message in this case.
6179 *) Handle special case when X509_NAME is empty in X509 printing routines.
6182 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6183 positive and less than q.
6186 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6187 used: it isn't thread safe and the add_lock_callback should handle
6189 [Paul Rose <Paul.Rose@bridge.com>]
6191 *) Verify that incoming data obeys the block size in
6192 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6196 [Ulf Möller, Bodo Möller]
6198 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6199 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6200 when fixing the server behaviour for backwards-compatible 'client
6201 hello' messages. (Note that the attack is impractical against
6202 SSL 3.0 and TLS 1.0 anyway because length and version checking
6203 means that the probability of guessing a valid ciphertext is
6204 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6207 Before 0.9.5, the countermeasure (hide the error by generating a
6208 random 'decryption result') did not work properly because
6209 ERR_clear_error() was missing, meaning that SSL_get_error() would
6210 detect the supposedly ignored error.
6212 Both problems are now fixed.
6215 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6216 (previously it was 1024).
6219 *) Fix for compatibility mode trust settings: ignore trust settings
6220 unless some valid trust or reject settings are present.
6223 *) Fix for blowfish EVP: its a variable length cipher.
6226 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6227 parameters in DSA public key structures and return an error in the
6228 DSA routines if parameters are absent.
6231 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6232 in the current directory if neither $RANDFILE nor $HOME was set.
6233 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6234 caused some confusion to Windows users who haven't defined $HOME.
6235 Thus RAND_file_name() is changed again: e_os.h can define a
6236 DEFAULT_HOME, which will be used if $HOME is not set.
6237 For Windows, we use "C:"; on other platforms, we still require
6238 environment variables.
6240 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6241 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6242 having multiple threads call RAND_poll() concurrently.
6245 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6246 combination of a flag and a thread ID variable.
6247 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6248 flag), *other* threads can enter ssleay_add_bytes without obeying
6249 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6250 that they do not hold after the first thread unsets add_do_not_lock).
6253 *) Change bctest again: '-x' expressions are not available in all
6257 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6259 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6260 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6262 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6263 the default extension for executables, if any. Also, make the perl
6264 scripts that use symlink() to test if it really exists and use "cp"
6265 if it doesn't. All this made OpenSSL compilable and installable in
6269 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6270 If SEQUENCE is length is indefinite just set c->slen to the total
6271 amount of data available.
6272 [Steve Henson, reported by shige@FreeBSD.org]
6273 [This change does not apply to 0.9.7.]
6275 *) Change bctest to avoid here-documents inside command substitution
6276 (workaround for FreeBSD /bin/sh bug).
6277 For compatibility with Ultrix, avoid shell functions (introduced
6278 in the bctest version that searches along $PATH).
6281 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6282 with des_encrypt() defined on some operating systems, like Solaris
6286 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6287 On the Importance of Eliminating Errors in Cryptographic
6288 Computations, J. Cryptology 14 (2001) 2, 101-119,
6289 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6292 *) MIPS assembler BIGNUM division bug fix.
6295 *) Disabled incorrect Alpha assembler code.
6298 *) Fix PKCS#7 decode routines so they correctly update the length
6299 after reading an EOC for the EXPLICIT tag.
6301 [This change does not apply to 0.9.7.]
6303 *) Fix bug in PKCS#12 key generation routines. This was triggered
6304 if a 3DES key was generated with a 0 initial byte. Include
6305 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6306 (but broken) behaviour.
6309 *) Enhance bctest to search for a working bc along $PATH and print
6311 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6313 *) Fix memory leaks in err.c: free err_data string if necessary;
6314 don't write to the wrong index in ERR_set_error_data.
6317 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6321 *) Replace rdtsc with _emit statements for VC++ version 5.
6322 [Jeremy Cooper <jeremy@baymoo.org>]
6324 *) Make it possible to reuse SSLv2 sessions.
6327 *) In copy_email() check for >= 0 as a return value for
6328 X509_NAME_get_index_by_NID() since 0 is a valid index.
6329 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6331 *) Avoid coredump with unsupported or invalid public keys by checking if
6332 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6333 PKCS7_verify() fails with non detached data.
6336 *) Don't use getenv in library functions when run as setuid/setgid.
6337 New function OPENSSL_issetugid().
6340 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6341 due to incorrect handling of multi-threading:
6343 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6345 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6347 3. Count how many times MemCheck_off() has been called so that
6348 nested use can be treated correctly. This also avoids
6349 inband-signalling in the previous code (which relied on the
6350 assumption that thread ID 0 is impossible).
6353 *) Add "-rand" option also to s_client and s_server.
6356 *) Fix CPU detection on Irix 6.x.
6357 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6358 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6360 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6363 [This change does not apply to 0.9.7.]
6365 *) Use the cached encoding of an X509_NAME structure rather than
6366 copying it. This is apparently the reason for the libsafe "errors"
6367 but the code is actually correct.
6370 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6371 Bleichenbacher's DSA attack.
6372 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6373 to be set and top=0 forces the highest bit to be set; top=-1 is new
6374 and leaves the highest bit random.
6375 [Ulf Moeller, Bodo Moeller]
6377 *) In the NCONF_...-based implementations for CONF_... queries
6378 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6379 a temporary CONF structure with the data component set to NULL
6380 (which gives segmentation faults in lh_retrieve).
6381 Instead, use NULL for the CONF pointer in CONF_get_string and
6382 CONF_get_number (which may use environment variables) and directly
6383 return NULL from CONF_get_section.
6386 *) Fix potential buffer overrun for EBCDIC.
6389 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6390 keyUsage if basicConstraints absent for a CA.
6393 *) Make SMIME_write_PKCS7() write mail header values with a format that
6394 is more generally accepted (no spaces before the semicolon), since
6395 some programs can't parse those values properly otherwise. Also make
6396 sure BIO's that break lines after each write do not create invalid
6400 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6401 macros previously used would not encode an empty SEQUENCE OF
6402 and break the signature.
6404 [This change does not apply to 0.9.7.]
6406 *) Zero the premaster secret after deriving the master secret in
6410 *) Add some EVP_add_digest_alias registrations (as found in
6411 OpenSSL_add_all_digests()) to SSL_library_init()
6412 aka OpenSSL_add_ssl_algorithms(). This provides improved
6413 compatibility with peers using X.509 certificates
6414 with unconventional AlgorithmIdentifier OIDs.
6417 *) Fix for Irix with NO_ASM.
6418 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6420 *) ./config script fixes.
6421 [Ulf Moeller, Richard Levitte]
6423 *) Fix 'openssl passwd -1'.
6426 *) Change PKCS12_key_gen_asc() so it can cope with non null
6427 terminated strings whose length is passed in the passlen
6428 parameter, for example from PEM callbacks. This was done
6429 by adding an extra length parameter to asc2uni().
6430 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6432 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6433 call failed, free the DSA structure.
6436 *) Fix to uni2asc() to cope with zero length Unicode strings.
6437 These are present in some PKCS#12 files.
6440 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6441 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6442 when writing a 32767 byte record.
6443 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6445 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6446 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6448 (RSA objects have a reference count access to which is protected
6449 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6450 so they are meant to be shared between threads.)
6451 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6452 "Reddie, Steven" <Steven.Reddie@ca.com>]
6454 *) Fix a deadlock in CRYPTO_mem_leaks().
6457 *) Use better test patterns in bntest.
6460 *) rand_win.c fix for Borland C.
6463 *) BN_rshift bugfix for n == 0.
6466 *) Add a 'bctest' script that checks for some known 'bc' bugs
6467 so that 'make test' does not abort just because 'bc' is broken.
6470 *) Store verify_result within SSL_SESSION also for client side to
6471 avoid potential security hole. (Re-used sessions on the client side
6472 always resulted in verify_result==X509_V_OK, not using the original
6473 result of the server certificate verification.)
6476 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6477 SSL3_RT_APPLICATION_DATA, return 0.
6478 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6482 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6483 releases, have been re-implemented by renaming the previous
6484 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6485 and ssl3_read_internal, respectively, and adding 'peek' parameters
6486 to them. The new ssl[23]_{read,peek} functions are calls to
6487 ssl[23]_read_internal with the 'peek' flag set appropriately.
6488 A 'peek' parameter has also been added to ssl3_read_bytes, which
6489 does the actual work for ssl3_read_internal.
6492 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6493 the method-specific "init()" handler. Also clean up ex_data after
6494 calling the method-specific "finish()" handler. Previously, this was
6495 happening the other way round.
6498 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6499 The previous value, 12, was not always sufficient for BN_mod_exp().
6502 *) Make sure that shared libraries get the internal name engine with
6503 the full version number and not just 0. This should mark the
6504 shared libraries as not backward compatible. Of course, this should
6505 be changed again when we can guarantee backward binary compatibility.
6508 *) Fix typo in get_cert_by_subject() in by_dir.c
6509 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6511 *) Rework the system to generate shared libraries:
6513 - Make note of the expected extension for the shared libraries and
6514 if there is a need for symbolic links from for example libcrypto.so.0
6515 to libcrypto.so.0.9.7. There is extended info in Configure for
6518 - Make as few rebuilds of the shared libraries as possible.
6520 - Still avoid linking the OpenSSL programs with the shared libraries.
6522 - When installing, install the shared libraries separately from the
6526 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6528 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6529 and not in SSL_clear because the latter is also used by the
6530 accept/connect functions; previously, the settings made by
6531 SSL_set_read_ahead would be lost during the handshake.
6532 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6534 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6535 Previously, it would create entries for disableed algorithms no
6539 *) Added several new manual pages for SSL_* function.
6542 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6544 *) In ssl23_get_client_hello, generate an error message when faced
6545 with an initial SSL 3.0/TLS record that is too small to contain the
6546 first two bytes of the ClientHello message, i.e. client_version.
6547 (Note that this is a pathologic case that probably has never happened
6548 in real life.) The previous approach was to use the version number
6549 from the record header as a substitute; but our protocol choice
6550 should not depend on that one because it is not authenticated
6551 by the Finished messages.
6554 *) More robust randomness gathering functions for Windows.
6555 [Jeffrey Altman <jaltman@columbia.edu>]
6557 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6558 not set then we don't setup the error code for issuer check errors
6559 to avoid possibly overwriting other errors which the callback does
6560 handle. If an application does set the flag then we assume it knows
6561 what it is doing and can handle the new informational codes
6565 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6566 a general "ANY" type, as such it should be able to decode anything
6567 including tagged types. However it didn't check the class so it would
6568 wrongly interpret tagged types in the same way as their universal
6569 counterpart and unknown types were just rejected. Changed so that the
6570 tagged and unknown types are handled in the same way as a SEQUENCE:
6571 that is the encoding is stored intact. There is also a new type
6572 "V_ASN1_OTHER" which is used when the class is not universal, in this
6573 case we have no idea what the actual type is so we just lump them all
6577 *) On VMS, stdout may very well lead to a file that is written to
6578 in a record-oriented fashion. That means that every write() will
6579 write a separate record, which will be read separately by the
6580 programs trying to read from it. This can be very confusing.
6582 The solution is to put a BIO filter in the way that will buffer
6583 text until a linefeed is reached, and then write everything a
6584 line at a time, so every record written will be an actual line,
6585 not chunks of lines and not (usually doesn't happen, but I've
6586 seen it once) several lines in one record. BIO_f_linebuffer() is
6589 Currently, it's a VMS-only method, because that's where it has
6590 been tested well enough.
6593 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6594 it can return incorrect results.
6595 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6596 but it was in 0.9.6-beta[12].)
6599 *) Disable the check for content being present when verifying detached
6600 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6601 include zero length content when signing messages.
6604 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6605 BIO_ctrl (for BIO pairs).
6608 *) Add DSO method for VMS.
6611 *) Bug fix: Montgomery multiplication could produce results with the
6615 *) Add RPM specification openssl.spec and modify it to build three
6616 packages. The default package contains applications, application
6617 documentation and run-time libraries. The devel package contains
6618 include files, static libraries and function documentation. The
6619 doc package contains the contents of the doc directory. The original
6620 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6623 *) Add a large number of documentation files for many SSL routines.
6624 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6626 *) Add a configuration entry for Sony News 4.
6627 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6629 *) Don't set the two most significant bits to one when generating a
6630 random number < q in the DSA library.
6633 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6634 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6635 the underlying transport is blocking) if a handshake took place.
6636 (The default behaviour is needed by applications such as s_client
6637 and s_server that use select() to determine when to use SSL_read;
6638 but for applications that know in advance when to expect data, it
6639 just makes things more complicated.)
6642 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6646 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6647 work better on such systems.
6648 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6650 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6651 Update PKCS12_parse() so it copies the friendlyName and the
6652 keyid to the certificates aux info.
6655 *) Fix bug in PKCS7_verify() which caused an infinite loop
6656 if there was more than one signature.
6657 [Sven Uszpelkat <su@celocom.de>]
6659 *) Major change in util/mkdef.pl to include extra information
6660 about each symbol, as well as presentig variables as well
6661 as functions. This change means that there's n more need
6662 to rebuild the .num files when some algorithms are excluded.
6665 *) Allow the verify time to be set by an application,
6666 rather than always using the current time.
6669 *) Phase 2 verify code reorganisation. The certificate
6670 verify code now looks up an issuer certificate by a
6671 number of criteria: subject name, authority key id
6672 and key usage. It also verifies self signed certificates
6673 by the same criteria. The main comparison function is
6674 X509_check_issued() which performs these checks.
6676 Lot of changes were necessary in order to support this
6677 without completely rewriting the lookup code.
6679 Authority and subject key identifier are now cached.
6681 The LHASH 'certs' is X509_STORE has now been replaced
6682 by a STACK_OF(X509_OBJECT). This is mainly because an
6683 LHASH can't store or retrieve multiple objects with
6684 the same hash value.
6686 As a result various functions (which were all internal
6687 use only) have changed to handle the new X509_STORE
6688 structure. This will break anything that messed round
6689 with X509_STORE internally.
6691 The functions X509_STORE_add_cert() now checks for an
6692 exact match, rather than just subject name.
6694 The X509_STORE API doesn't directly support the retrieval
6695 of multiple certificates matching a given criteria, however
6696 this can be worked round by performing a lookup first
6697 (which will fill the cache with candidate certificates)
6698 and then examining the cache for matches. This is probably
6699 the best we can do without throwing out X509_LOOKUP
6700 entirely (maybe later...).
6702 The X509_VERIFY_CTX structure has been enhanced considerably.
6704 All certificate lookup operations now go via a get_issuer()
6705 callback. Although this currently uses an X509_STORE it
6706 can be replaced by custom lookups. This is a simple way
6707 to bypass the X509_STORE hackery necessary to make this
6708 work and makes it possible to use more efficient techniques
6709 in future. A very simple version which uses a simple
6710 STACK for its trusted certificate store is also provided
6711 using X509_STORE_CTX_trusted_stack().
6713 The verify_cb() and verify() callbacks now have equivalents
6714 in the X509_STORE_CTX structure.
6716 X509_STORE_CTX also has a 'flags' field which can be used
6717 to customise the verify behaviour.
6720 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6721 excludes S/MIME capabilities.
6724 *) When a certificate request is read in keep a copy of the
6725 original encoding of the signed data and use it when outputing
6726 again. Signatures then use the original encoding rather than
6727 a decoded, encoded version which may cause problems if the
6728 request is improperly encoded.
6731 *) For consistency with other BIO_puts implementations, call
6732 buffer_write(b, ...) directly in buffer_puts instead of calling
6735 In BIO_puts, increment b->num_write as in BIO_write.
6736 [Peter.Sylvester@EdelWeb.fr]
6738 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6739 BN_zero, we may not return a BIGNUM with an array consisting of
6743 *) Avoid calling abort() from within the library when problems are
6744 detected, except if preprocessor symbols have been defined
6745 (such as REF_CHECK, BN_DEBUG etc.).
6748 *) New openssl application 'rsautl'. This utility can be
6749 used for low level RSA operations. DER public key
6750 BIO/fp routines also added.
6753 *) New Configure entry and patches for compiling on QNX 4.
6754 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6756 *) A demo state-machine implementation was sponsored by
6757 Nuron (http://www.nuron.com/) and is now available in
6758 demos/state_machine.
6761 *) New options added to the 'dgst' utility for signature
6762 generation and verification.
6765 *) Unrecognized PKCS#7 content types are now handled via a
6766 catch all ASN1_TYPE structure. This allows unsupported
6767 types to be stored as a "blob" and an application can
6768 encode and decode it manually.
6771 *) Fix various signed/unsigned issues to make a_strex.c
6773 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6775 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6776 length if passed a buffer. ASN1_INTEGER_to_BN failed
6777 if passed a NULL BN and its argument was negative.
6778 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6780 *) Modification to PKCS#7 encoding routines to output definite
6781 length encoding. Since currently the whole structures are in
6782 memory there's not real point in using indefinite length
6783 constructed encoding. However if OpenSSL is compiled with
6784 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6787 *) Added BIO_vprintf() and BIO_vsnprintf().
6790 *) Added more prefixes to parse for in the the strings written
6791 through a logging bio, to cover all the levels that are available
6792 through syslog. The prefixes are now:
6794 PANIC, EMERG, EMR => LOG_EMERG
6795 ALERT, ALR => LOG_ALERT
6796 CRIT, CRI => LOG_CRIT
6797 ERROR, ERR => LOG_ERR
6798 WARNING, WARN, WAR => LOG_WARNING
6799 NOTICE, NOTE, NOT => LOG_NOTICE
6800 INFO, INF => LOG_INFO
6801 DEBUG, DBG => LOG_DEBUG
6803 and as before, if none of those prefixes are present at the
6804 beginning of the string, LOG_ERR is chosen.
6806 On Win32, the LOG_* levels are mapped according to this:
6808 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6809 LOG_WARNING => EVENTLOG_WARNING_TYPE
6810 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6814 *) Made it possible to reconfigure with just the configuration
6815 argument "reconf" or "reconfigure". The command line arguments
6816 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6817 and are retrieved from there when reconfiguring.
6821 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6823 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6826 *) The obj_dat.pl script was messing up the sorting of object
6827 names. The reason was that it compared the quoted version
6828 of strings as a result "OCSP" > "OCSP Signing" because
6829 " > SPACE. Changed script to store unquoted versions of
6830 names and add quotes on output. It was also omitting some
6831 names from the lookup table if they were given a default
6832 value (that is if SN is missing it is given the same
6833 value as LN and vice versa), these are now added on the
6834 grounds that if an object has a name we should be able to
6835 look it up. Finally added warning output when duplicate
6836 short or long names are found.
6839 *) Changes needed for Tandem NSK.
6840 [Scott Uroff <scott@xypro.com>]
6842 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6843 RSA_padding_check_SSLv23(), special padding was never detected
6844 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6845 version rollback attacks was not effective.
6847 In s23_clnt.c, don't use special rollback-attack detection padding
6848 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6849 client; similarly, in s23_srvr.c, don't do the rollback check if
6850 SSL 2.0 is the only protocol enabled in the server.
6853 *) Make it possible to get hexdumps of unprintable data with 'openssl
6854 asn1parse'. By implication, the functions ASN1_parse_dump() and
6855 BIO_dump_indent() are added.
6858 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6859 these print out strings and name structures based on various
6860 flags including RFC2253 support and proper handling of
6861 multibyte characters. Added options to the 'x509' utility
6862 to allow the various flags to be set.
6865 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6866 Also change the functions X509_cmp_current_time() and
6867 X509_gmtime_adj() work with an ASN1_TIME structure,
6868 this will enable certificates using GeneralizedTime in validity
6869 dates to be checked.
6872 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6873 negative public key encodings) on by default,
6874 NO_NEG_PUBKEY_BUG can be set to disable it.
6877 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6878 content octets. An i2c_ASN1_OBJECT is unnecessary because
6879 the encoding can be trivially obtained from the structure.
6882 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6883 not read locks (CRYPTO_r_[un]lock).
6886 *) A first attempt at creating official support for shared
6887 libraries through configuration. I've kept it so the
6888 default is static libraries only, and the OpenSSL programs
6889 are always statically linked for now, but there are
6890 preparations for dynamic linking in place.
6891 This has been tested on Linux and Tru64.
6894 *) Randomness polling function for Win9x, as described in:
6895 Peter Gutmann, Software Generation of Practically Strong
6899 *) Fix so PRNG is seeded in req if using an already existing
6903 *) New options to smime application. -inform and -outform
6904 allow alternative formats for the S/MIME message including
6905 PEM and DER. The -content option allows the content to be
6906 specified separately. This should allow things like Netscape
6907 form signing output easier to verify.
6910 *) Fix the ASN1 encoding of tags using the 'long form'.
6913 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6914 STRING types. These convert content octets to and from the
6915 underlying type. The actual tag and length octets are
6916 already assumed to have been read in and checked. These
6917 are needed because all other string types have virtually
6918 identical handling apart from the tag. By having versions
6919 of the ASN1 functions that just operate on content octets
6920 IMPLICIT tagging can be handled properly. It also allows
6921 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6922 and ASN1_INTEGER are identical apart from the tag.
6925 *) Change the handling of OID objects as follows:
6927 - New object identifiers are inserted in objects.txt, following
6928 the syntax given in objects.README.
6929 - objects.pl is used to process obj_mac.num and create a new
6931 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6934 This is currently kind of a hack, and the perl code in objects.pl
6935 isn't very elegant, but it works as I intended. The simplest way
6936 to check that it worked correctly is to look in obj_dat.h and
6937 check the array nid_objs and make sure the objects haven't moved
6938 around (this is important!). Additions are OK, as well as
6939 consistent name changes.
6942 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6945 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6946 The given file adds to whatever has already been seeded into the
6947 random pool through the RANDFILE configuration file option or
6948 environment variable, or the default random state file.
6951 *) mkstack.pl now sorts each macro group into lexical order.
6952 Previously the output order depended on the order the files
6953 appeared in the directory, resulting in needless rewriting
6957 *) Patches to make OpenSSL compile under Win32 again. Mostly
6958 work arounds for the VC++ problem that it treats func() as
6959 func(void). Also stripped out the parts of mkdef.pl that
6960 added extra typesafe functions: these no longer exist.
6963 *) Reorganisation of the stack code. The macros are now all
6964 collected in safestack.h . Each macro is defined in terms of
6965 a "stack macro" of the form SKM_<name>(type, a, b). The
6966 DEBUG_SAFESTACK is now handled in terms of function casts,
6967 this has the advantage of retaining type safety without the
6968 use of additional functions. If DEBUG_SAFESTACK is not defined
6969 then the non typesafe macros are used instead. Also modified the
6970 mkstack.pl script to handle the new form. Needs testing to see
6971 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6972 the default if no major problems. Similar behaviour for ASN1_SET_OF
6973 and PKCS12_STACK_OF.
6976 *) When some versions of IIS use the 'NET' form of private key the
6977 key derivation algorithm is different. Normally MD5(password) is
6978 used as a 128 bit RC4 key. In the modified case
6979 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6980 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6981 as the old Netscape_RSA functions except they have an additional
6982 'sgckey' parameter which uses the modified algorithm. Also added
6983 an -sgckey command line option to the rsa utility. Thanks to
6984 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6985 algorithm to openssl-dev.
6988 *) The evp_local.h macros were using 'c.##kname' which resulted in
6989 invalid expansion on some systems (SCO 5.0.5 for example).
6990 Corrected to 'c.kname'.
6991 [Phillip Porch <root@theporch.com>]
6993 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6994 a STACK of email addresses from a certificate or request, these look
6995 in the subject name and the subject alternative name extensions and
6996 omit any duplicate addresses.
6999 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7000 This makes DSA verification about 2 % faster.
7003 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7004 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7005 plus overhead for 1024 bit moduli).
7006 This makes exponentiations about 0.5 % faster for 1024 bit
7007 exponents (as measured by "openssl speed rsa2048").
7010 *) Rename memory handling macros to avoid conflicts with other
7012 Malloc => OPENSSL_malloc
7013 Malloc_locked => OPENSSL_malloc_locked
7014 Realloc => OPENSSL_realloc
7015 Free => OPENSSL_free
7018 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7019 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7022 *) CygWin32 support.
7023 [John Jarvie <jjarvie@newsguy.com>]
7025 *) The type-safe stack code has been rejigged. It is now only compiled
7026 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7027 by default all type-specific stack functions are "#define"d back to
7028 standard stack functions. This results in more streamlined output
7029 but retains the type-safety checking possibilities of the original
7033 *) The STACK code has been cleaned up, and certain type declarations
7034 that didn't make a lot of sense have been brought in line. This has
7035 also involved a cleanup of sorts in safestack.h to more correctly
7036 map type-safe stack functions onto their plain stack counterparts.
7037 This work has also resulted in a variety of "const"ifications of
7038 lots of the code, especially "_cmp" operations which should normally
7039 be prototyped with "const" parameters anyway.
7042 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7043 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7044 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7045 where all of 'md' is used each time the PRNG is used, but 'state'
7046 is used only indexed by a cyclic counter. As entropy may not be
7047 well distributed from the beginning, 'md' is important as a
7048 chaining variable. However, the output function chains only half
7049 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7050 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7051 in all of 'state' being rewritten, with the new values depending
7052 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7055 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7056 the handshake is continued after ssl_verify_cert_chain();
7057 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7058 can lead to 'unexplainable' connection aborts later.
7059 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7061 *) Major EVP API cipher revision.
7062 Add hooks for extra EVP features. This allows various cipher
7063 parameters to be set in the EVP interface. Support added for variable
7064 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7065 setting of RC2 and RC5 parameters.
7067 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7070 Remove lots of duplicated code from the EVP library. For example *every*
7071 cipher init() function handles the 'iv' in the same way according to the
7072 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7073 for CFB and OFB modes they zero ctx->num.
7075 New functionality allows removal of S/MIME code RC2 hack.
7077 Most of the routines have the same form and so can be declared in terms
7080 By shifting this to the top level EVP_CipherInit() it can be removed from
7081 all individual ciphers. If the cipher wants to handle IVs or keys
7082 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7085 Change lots of functions like EVP_EncryptUpdate() to now return a
7086 value: although software versions of the algorithms cannot fail
7087 any installed hardware versions can.
7090 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7091 this option is set, tolerate broken clients that send the negotiated
7092 protocol version number instead of the requested protocol version
7096 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7097 i.e. non-zero for export ciphersuites, zero otherwise.
7098 Previous versions had this flag inverted, inconsistent with
7099 rsa_tmp_cb (..._TMP_RSA_CB).
7100 [Bodo Moeller; problem reported by Amit Chopra]
7102 *) Add missing DSA library text string. Work around for some IIS
7103 key files with invalid SEQUENCE encoding.
7106 *) Add a document (doc/standards.txt) that list all kinds of standards
7107 and so on that are implemented in OpenSSL.
7110 *) Enhance c_rehash script. Old version would mishandle certificates
7111 with the same subject name hash and wouldn't handle CRLs at all.
7112 Added -fingerprint option to crl utility, to support new c_rehash
7116 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7119 *) Fix for SSL server purpose checking. Server checking was
7120 rejecting certificates which had extended key usage present
7121 but no ssl client purpose.
7122 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7124 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7125 is a little unclear about how a blank password is handled.
7126 Since the password in encoded as a BMPString with terminating
7127 double NULL a zero length password would end up as just the
7128 double NULL. However no password at all is different and is
7129 handled differently in the PKCS#12 key generation code. NS
7130 treats a blank password as zero length. MSIE treats it as no
7131 password on export: but it will try both on import. We now do
7132 the same: PKCS12_parse() tries zero length and no password if
7133 the password is set to "" or NULL (NULL is now a valid password:
7134 it wasn't before) as does the pkcs12 application.
7137 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7138 perror when PEM_read_bio_X509_REQ fails, the error message must
7139 be obtained from the error queue.
7142 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7143 it in ERR_remove_state if appropriate, and change ERR_get_state
7144 accordingly to avoid race conditions (this is necessary because
7145 thread_hash is no longer constant once set).
7148 *) Bugfix for linux-elf makefile.one.
7151 *) RSA_get_default_method() will now cause a default
7152 RSA_METHOD to be chosen if one doesn't exist already.
7153 Previously this was only set during a call to RSA_new()
7154 or RSA_new_method(NULL) meaning it was possible for
7155 RSA_get_default_method() to return NULL.
7158 *) Added native name translation to the existing DSO code
7159 that will convert (if the flag to do so is set) filenames
7160 that are sufficiently small and have no path information
7161 into a canonical native form. Eg. "blah" converted to
7162 "libblah.so" or "blah.dll" etc.
7165 *) New function ERR_error_string_n(e, buf, len) which is like
7166 ERR_error_string(e, buf), but writes at most 'len' bytes
7167 including the 0 terminator. For ERR_error_string_n, 'buf'
7169 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7171 *) CONF library reworked to become more general. A new CONF
7172 configuration file reader "class" is implemented as well as a
7173 new functions (NCONF_*, for "New CONF") to handle it. The now
7174 old CONF_* functions are still there, but are reimplemented to
7175 work in terms of the new functions. Also, a set of functions
7176 to handle the internal storage of the configuration data is
7177 provided to make it easier to write new configuration file
7178 reader "classes" (I can definitely see something reading a
7179 configuration file in XML format, for example), called _CONF_*,
7180 or "the configuration storage API"...
7182 The new configuration file reading functions are:
7184 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7185 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7187 NCONF_default, NCONF_WIN32
7189 NCONF_dump_fp, NCONF_dump_bio
7191 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7192 NCONF_new creates a new CONF object. This works in the same way
7193 as other interfaces in OpenSSL, like the BIO interface.
7194 NCONF_dump_* dump the internal storage of the configuration file,
7195 which is useful for debugging. All other functions take the same
7196 arguments as the old CONF_* functions wth the exception of the
7197 first that must be a `CONF *' instead of a `LHASH *'.
7199 To make it easer to use the new classes with the old CONF_* functions,
7200 the function CONF_set_default_method is provided.
7203 *) Add '-tls1' option to 'openssl ciphers', which was already
7204 mentioned in the documentation but had not been implemented.
7205 (This option is not yet really useful because even the additional
7206 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7209 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7210 OpenSSL-based applications) load shared libraries and bind to
7211 them in a portable way.
7212 [Geoff Thorpe, with contributions from Richard Levitte]
7214 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7216 *) Make sure _lrotl and _lrotr are only used with MSVC.
7218 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7219 (the default implementation of RAND_status).
7221 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7222 to '-clrext' (= clear extensions), as intended and documented.
7223 [Bodo Moeller; inconsistency pointed out by Michael Attili
7226 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7227 was larger than the MD block size.
7228 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7230 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7231 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7232 using the passed key: if the passed key was a private key the result
7233 of X509_print(), for example, would be to print out all the private key
7237 *) des_quad_cksum() byte order bug fix.
7238 [Ulf Möller, using the problem description in krb4-0.9.7, where
7239 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7241 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7243 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7245 *) For easily testing in shell scripts whether some command
7246 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7247 returns with exit code 0 iff no command of the given name is available.
7248 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7249 the output goes to stdout and nothing is printed to stderr.
7250 Additional arguments are always ignored.
7252 Since for each cipher there is a command of the same name,
7253 the 'no-cipher' compilation switches can be tested this way.
7255 ('openssl no-XXX' is not able to detect pseudo-commands such
7256 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7259 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7262 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7263 is set; it will be thrown away anyway because each handshake creates
7265 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7266 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7267 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7268 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7271 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7272 'Q' and 'R' lose their special meanings (quit/renegotiate).
7273 This is part of what -quiet does; unlike -quiet, -ign_eof
7274 does not suppress any output.
7277 *) Add compatibility options to the purpose and trust code. The
7278 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7279 accepts a certificate or CA, this was the previous behaviour,
7280 with all the associated security issues.
7282 X509_TRUST_COMPAT is the old trust behaviour: only and
7283 automatically trust self signed roots in certificate store. A
7284 new trust setting X509_TRUST_DEFAULT is used to specify that
7285 a purpose has no associated trust setting and it should instead
7286 use the value in the default purpose.
7289 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7290 and fix a memory leak.
7293 *) In util/mkerr.pl (which implements 'make errors'), preserve
7294 reason strings from the previous version of the .c file, as
7295 the default to have only downcase letters (and digits) in
7296 automatically generated reasons codes is not always appropriate.
7299 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7300 using strerror. Previously, ERR_reason_error_string() returned
7301 library names as reason strings for SYSerr; but SYSerr is a special
7302 case where small numbers are errno values, not library numbers.
7305 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7306 converts DSA parameters into DH parameters. (When creating parameters,
7307 DSA_generate_parameters is used.)
7310 *) Include 'length' (recommended exponent length) in C code generated
7311 by 'openssl dhparam -C'.
7314 *) The second argument to set_label in perlasm was already being used
7315 so couldn't be used as a "file scope" flag. Moved to third argument
7319 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7320 instead of RAND_bytes for encryption IVs and salts.
7323 *) Include RAND_status() into RAND_METHOD instead of implementing
7324 it only for md_rand.c Otherwise replacing the PRNG by calling
7325 RAND_set_rand_method would be impossible.
7328 *) Don't let DSA_generate_key() enter an infinite loop if the random
7329 number generation fails.
7332 *) New 'rand' application for creating pseudo-random output.
7335 *) Added configuration support for Linux/IA64
7336 [Rolf Haberrecker <rolf@suse.de>]
7338 *) Assembler module support for Mingw32.
7341 *) Shared library support for HPUX (in shlib/).
7342 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7344 *) Shared library support for Solaris gcc.
7345 [Lutz Behnke <behnke@trustcenter.de>]
7347 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7349 *) PKCS7_encrypt() was adding text MIME headers twice because they
7350 were added manually and by SMIME_crlf_copy().
7353 *) In bntest.c don't call BN_rand with zero bits argument.
7354 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7356 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7357 case was implemented. This caused BN_div_recp() to fail occasionally.
7360 *) Add an optional second argument to the set_label() in the perl
7361 assembly language builder. If this argument exists and is set
7362 to 1 it signals that the assembler should use a symbol whose
7363 scope is the entire file, not just the current function. This
7364 is needed with MASM which uses the format label:: for this scope.
7365 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7367 *) Change the ASN1 types so they are typedefs by default. Before
7368 almost all types were #define'd to ASN1_STRING which was causing
7369 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7373 *) Change names of new functions to the new get1/get0 naming
7374 convention: After 'get1', the caller owns a reference count
7375 and has to call ..._free; 'get0' returns a pointer to some
7376 data structure without incrementing reference counters.
7377 (Some of the existing 'get' functions increment a reference
7378 counter, some don't.)
7379 Similarly, 'set1' and 'add1' functions increase reference
7380 counters or duplicate objects.
7383 *) Allow for the possibility of temp RSA key generation failure:
7384 the code used to assume it always worked and crashed on failure.
7387 *) Fix potential buffer overrun problem in BIO_printf().
7388 [Ulf Möller, using public domain code by Patrick Powell; problem
7389 pointed out by David Sacerdote <das33@cornell.edu>]
7391 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7392 RAND_egd() and RAND_status(). In the command line application,
7393 the EGD socket can be specified like a seed file using RANDFILE
7397 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7398 Some CAs (e.g. Verisign) distribute certificates in this form.
7401 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7402 list to exclude them. This means that no special compilation option
7403 is needed to use anonymous DH: it just needs to be included in the
7407 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7408 EVP_MD_type. The old functionality is available in a new macro called
7409 EVP_MD_md(). Change code that uses it and update docs.
7412 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7413 where the 'void *' argument is replaced by a function pointer argument.
7414 Previously 'void *' was abused to point to functions, which works on
7415 many platforms, but is not correct. As these functions are usually
7416 called by macros defined in OpenSSL header files, most source code
7417 should work without changes.
7420 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7421 sections with information on -D... compiler switches used for
7422 compiling the library so that applications can see them. To enable
7423 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7424 must be defined. E.g.,
7425 #define OPENSSL_ALGORITHM_DEFINES
7426 #include <openssl/opensslconf.h>
7427 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7428 [Richard Levitte, Ulf and Bodo Möller]
7430 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7434 *) Change the 'other' type in certificate aux info to a STACK_OF
7435 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7436 the required ASN1 format: arbitrary types determined by an OID.
7439 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7440 argument to 'req'. This is not because the function is newer or
7441 better than others it just uses the work 'NEW' in the certificate
7442 request header lines. Some software needs this.
7445 *) Reorganise password command line arguments: now passwords can be
7446 obtained from various sources. Delete the PEM_cb function and make
7447 it the default behaviour: i.e. if the callback is NULL and the
7448 usrdata argument is not NULL interpret it as a null terminated pass
7449 phrase. If usrdata and the callback are NULL then the pass phrase
7450 is prompted for as usual.
7453 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7454 the support is automatically enabled. The resulting binaries will
7455 autodetect the card and use it if present.
7456 [Ben Laurie and Compaq Inc.]
7458 *) Work around for Netscape hang bug. This sends certificate request
7459 and server done in one record. Since this is perfectly legal in the
7460 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7461 the bugs/SSLv3 entry for more info.
7464 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7467 *) Add -rand argument to smime and pkcs12 applications and read/write
7471 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7474 *) Add command line password options to the remaining applications.
7477 *) Bug fix for BN_div_recp() for numerators with an even number of
7481 *) More tests in bntest.c, and changed test_bn output.
7484 *) ./config recognizes MacOS X now.
7487 *) Bug fix for BN_div() when the first words of num and divsor are
7488 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7491 *) Add support for various broken PKCS#8 formats, and command line
7492 options to produce them.
7495 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7496 get temporary BIGNUMs from a BN_CTX.
7499 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7503 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7504 include a #define from the old name to the new. The original intent
7505 was that statically linked binaries could for example just call
7506 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7507 link with digests. This never worked becayse SSLeay_add_all_digests()
7508 and SSLeay_add_all_ciphers() were in the same source file so calling
7509 one would link with the other. They are now in separate source files.
7512 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7515 *) Use a less unusual form of the Miller-Rabin primality test (it used
7516 a binary algorithm for exponentiation integrated into the Miller-Rabin
7517 loop, our standard modexp algorithms are faster).
7520 *) Support for the EBCDIC character set completed.
7521 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7523 *) Source code cleanups: use const where appropriate, eliminate casts,
7524 use void * instead of char * in lhash.
7527 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7528 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7529 this the server could overwrite ephemeral keys that the client
7533 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7534 using 50 iterations of the Rabin-Miller test.
7536 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7537 iterations of the Rabin-Miller test as required by the appendix
7538 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7539 As BN_is_prime_fasttest includes trial division, DSA parameter
7540 generation becomes much faster.
7542 This implies a change for the callback functions in DSA_is_prime
7543 and DSA_generate_parameters: The callback function is called once
7544 for each positive witness in the Rabin-Miller test, not just
7545 occasionally in the inner loop; and the parameters to the
7546 callback function now provide an iteration count for the outer
7547 loop rather than for the current invocation of the inner loop.
7548 DSA_generate_parameters additionally can call the callback
7549 function with an 'iteration count' of -1, meaning that a
7550 candidate has passed the trial division test (when q is generated
7551 from an application-provided seed, trial division is skipped).
7554 *) New function BN_is_prime_fasttest that optionally does trial
7555 division before starting the Rabin-Miller test and has
7556 an additional BN_CTX * argument (whereas BN_is_prime always
7557 has to allocate at least one BN_CTX).
7558 'callback(1, -1, cb_arg)' is called when a number has passed the
7559 trial division stage.
7562 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7566 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7569 *) New function BN_pseudo_rand().
7572 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7573 bignum version of BN_from_montgomery() with the working code from
7574 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7578 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7579 made it impossible to use the same SSL_SESSION data structure in
7580 SSL2 clients in multiple threads.
7583 *) The return value of RAND_load_file() no longer counts bytes obtained
7584 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7585 to seed the PRNG (previously an explicit byte count was required).
7586 [Ulf Möller, Bodo Möller]
7588 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7589 used (char *) instead of (void *) and had casts all over the place.
7592 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7595 *) Retain source code compatibility for BN_prime_checks macro:
7596 BN_is_prime(..., BN_prime_checks, ...) now uses
7597 BN_prime_checks_for_size to determine the appropriate number of
7598 Rabin-Miller iterations.
7601 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7602 DH_CHECK_P_NOT_SAFE_PRIME.
7603 (Check if this is true? OpenPGP calls them "strong".)
7606 *) Merge the functionality of "dh" and "gendh" programs into a new program
7607 "dhparam". The old programs are retained for now but will handle DH keys
7608 (instead of parameters) in future.
7611 *) Make the ciphers, s_server and s_client programs check the return values
7612 when a new cipher list is set.
7615 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7616 ciphers. Before when the 56bit ciphers were enabled the sorting was
7619 The syntax for the cipher sorting has been extended to support sorting by
7620 cipher-strength (using the strength_bits hard coded in the tables).
7621 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7623 Fix a bug in the cipher-command parser: when supplying a cipher command
7624 string with an "undefined" symbol (neither command nor alphanumeric
7625 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7626 an error is flagged.
7628 Due to the strength-sorting extension, the code of the
7629 ssl_create_cipher_list() function was completely rearranged. I hope that
7630 the readability was also increased :-)
7631 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7633 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7634 for the first serial number and places 2 in the serial number file. This
7635 avoids problems when the root CA is created with serial number zero and
7636 the first user certificate has the same issuer name and serial number
7640 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7641 the new code. Add documentation for this stuff.
7644 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7645 X509_*() to X509at_*() on the grounds that they don't handle X509
7646 structures and behave in an analagous way to the X509v3 functions:
7647 they shouldn't be called directly but wrapper functions should be used
7650 So we also now have some wrapper functions that call the X509at functions
7651 when passed certificate requests. (TO DO: similar things can be done with
7652 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7653 things. Some of these need some d2i or i2d and print functionality
7654 because they handle more complex structures.)
7657 *) Add missing #ifndefs that caused missing symbols when building libssl
7658 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7659 NO_RSA in ssl/s2*.c.
7660 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7662 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7663 has a return value which indicates the quality of the random data
7664 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7665 error queue. New function RAND_pseudo_bytes() generates output that is
7666 guaranteed to be unique but not unpredictable. RAND_add is like
7667 RAND_seed, but takes an extra argument for an entropy estimate
7668 (RAND_seed always assumes full entropy).
7671 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7672 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7673 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7674 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7675 false-positive rate of at most 2^-80 for random input.
7678 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7681 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7682 in the 0.9.5 release), this returns the chain
7683 from an X509_CTX structure with a dup of the stack and all
7684 the X509 reference counts upped: so the stack will exist
7685 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7688 Also make SSL_SESSION_print() print out the verify return
7692 *) Add manpage for the pkcs12 command. Also change the default
7693 behaviour so MAC iteration counts are used unless the new
7694 -nomaciter option is used. This improves file security and
7695 only older versions of MSIE (4.0 for example) need it.
7698 *) Honor the no-xxx Configure options when creating .DEF files.
7701 *) Add PKCS#10 attributes to field table: challengePassword,
7702 unstructuredName and unstructuredAddress. These are taken from
7703 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7704 international characters are used.
7706 More changes to X509_ATTRIBUTE code: allow the setting of types
7707 based on strings. Remove the 'loc' parameter when adding
7708 attributes because these will be a SET OF encoding which is sorted
7712 *) Initial changes to the 'req' utility to allow request generation
7713 automation. This will allow an application to just generate a template
7714 file containing all the field values and have req construct the
7717 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7718 used all over the place including certificate requests and PKCS#7
7719 structures. They are currently handled manually where necessary with
7720 some primitive wrappers for PKCS#7. The new functions behave in a
7721 manner analogous to the X509 extension functions: they allow
7722 attributes to be looked up by NID and added.
7724 Later something similar to the X509V3 code would be desirable to
7725 automatically handle the encoding, decoding and printing of the
7726 more complex types. The string types like challengePassword can
7727 be handled by the string table functions.
7729 Also modified the multi byte string table handling. Now there is
7730 a 'global mask' which masks out certain types. The table itself
7731 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7732 is useful when for example there is only one permissible type
7733 (as in countryName) and using the mask might result in no valid
7737 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7738 SSL_get_peer_finished to allow applications to obtain the latest
7739 Finished messages sent to the peer or expected from the peer,
7740 respectively. (SSL_get_peer_finished is usually the Finished message
7741 actually received from the peer, otherwise the protocol will be aborted.)
7743 As the Finished message are message digests of the complete handshake
7744 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7745 be used for external authentication procedures when the authentication
7746 provided by SSL/TLS is not desired or is not enough.
7749 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7750 the host supports BWX extension and if Compaq C is present on the
7751 $PATH. Just exploiting of the BWX extension results in 20-30%
7752 performance kick for some algorithms, e.g. DES and RC4 to mention
7753 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7757 *) Add support for MS "fast SGC". This is arguably a violation of the
7758 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7759 weak crypto and after checking the certificate is SGC a second one
7760 with strong crypto. MS SGC stops the first handshake after receiving
7761 the server certificate message and sends a second client hello. Since
7762 a server will typically do all the time consuming operations before
7763 expecting any further messages from the client (server key exchange
7764 is the most expensive) there is little difference between the two.
7766 To get OpenSSL to support MS SGC we have to permit a second client
7767 hello message after we have sent server done. In addition we have to
7768 reset the MAC if we do get this second client hello.
7771 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7772 if a DER encoded private key is RSA or DSA traditional format. Changed
7773 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7774 format DER encoded private key. Newer code should use PKCS#8 format which
7775 has the key type encoded in the ASN1 structure. Added DER private key
7776 support to pkcs8 application.
7779 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7780 ciphersuites has been selected (as required by the SSL 3/TLS 1
7781 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7782 is set, we interpret this as a request to violate the specification
7783 (the worst that can happen is a handshake failure, and 'correct'
7784 behaviour would result in a handshake failure anyway).
7787 *) In SSL_CTX_add_session, take into account that there might be multiple
7788 SSL_SESSION structures with the same session ID (e.g. when two threads
7789 concurrently obtain them from an external cache).
7790 The internal cache can handle only one SSL_SESSION with a given ID,
7791 so if there's a conflict, we now throw out the old one to achieve
7795 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7796 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7797 some routines that use cipher OIDs: some ciphers do not have OIDs
7798 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7802 *) Simplify the trust setting structure and code. Now we just have
7803 two sequences of OIDs for trusted and rejected settings. These will
7804 typically have values the same as the extended key usage extension
7805 and any application specific purposes.
7807 The trust checking code now has a default behaviour: it will just
7808 check for an object with the same NID as the passed id. Functions can
7809 be provided to override either the default behaviour or the behaviour
7810 for a given id. SSL client, server and email already have functions
7811 in place for compatibility: they check the NID and also return "trusted"
7812 if the certificate is self signed.
7815 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7816 traditional format into an EVP_PKEY structure.
7819 *) Add a password callback function PEM_cb() which either prompts for
7820 a password if usr_data is NULL or otherwise assumes it is a null
7821 terminated password. Allow passwords to be passed on command line
7822 environment or config files in a few more utilities.
7825 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7826 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7827 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7828 Update documentation.
7831 *) Support for ASN1 "NULL" type. This could be handled before by using
7832 ASN1_TYPE but there wasn't any function that would try to read a NULL
7833 and produce an error if it couldn't. For compatibility we also have
7834 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7835 don't allocate anything because they don't need to.
7838 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7840 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7842 *) Rebuild of the memory allocation routines used by OpenSSL code and
7843 possibly others as well. The purpose is to make an interface that
7844 provide hooks so anyone can build a separate set of allocation and
7845 deallocation routines to be used by OpenSSL, for example memory
7846 pool implementations, or something else, which was previously hard
7847 since Malloc(), Realloc() and Free() were defined as macros having
7848 the values malloc, realloc and free, respectively (except for Win32
7849 compilations). The same is provided for memory debugging code.
7850 OpenSSL already comes with functionality to find memory leaks, but
7851 this gives people a chance to debug other memory problems.
7853 With these changes, a new set of functions and macros have appeared:
7855 CRYPTO_set_mem_debug_functions() [F]
7856 CRYPTO_get_mem_debug_functions() [F]
7857 CRYPTO_dbg_set_options() [F]
7858 CRYPTO_dbg_get_options() [F]
7859 CRYPTO_malloc_debug_init() [M]
7861 The memory debug functions are NULL by default, unless the library
7862 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7863 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7864 gives the standard debugging functions that come with OpenSSL) or
7865 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7866 provided by the library user) must be used. When the standard
7867 debugging functions are used, CRYPTO_dbg_set_options can be used to
7868 request additional information:
7869 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7870 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7872 Also, things like CRYPTO_set_mem_functions will always give the
7873 expected result (the new set of functions is used for allocation
7874 and deallocation) at all times, regardless of platform and compiler
7877 To finish it up, some functions that were never use in any other
7878 way than through macros have a new API and new semantic:
7881 CRYPTO_dbg_realloc()
7884 All macros of value have retained their old syntax.
7885 [Richard Levitte and Bodo Moeller]
7887 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7888 ordering of SMIMECapabilities wasn't in "strength order" and there
7889 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7893 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7894 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7895 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7897 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7898 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7899 functionality to handle multipart/signed properly) and a utility
7900 called 'smime' to call all this stuff. This is based on code I
7901 originally wrote for Celo who have kindly allowed it to be
7902 included in OpenSSL.
7905 *) Add variants des_set_key_checked and des_set_key_unchecked of
7906 des_set_key (aka des_key_sched). Global variable des_check_key
7907 decides which of these is called by des_set_key; this way
7908 des_check_key behaves as it always did, but applications and
7909 the library itself, which was buggy for des_check_key == 1,
7910 have a cleaner way to pick the version they need.
7913 *) New function PKCS12_newpass() which changes the password of a
7917 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7918 dynamic mix. In both cases the ids can be used as an index into the
7919 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7920 functions so they accept a list of the field values and the
7921 application doesn't need to directly manipulate the X509_TRUST
7925 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7929 *) Modify the way the V3 extension code looks up extensions. This now
7930 works in a similar way to the object code: we have some "standard"
7931 extensions in a static table which is searched with OBJ_bsearch()
7932 and the application can add dynamic ones if needed. The file
7933 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7934 updated whenever a new extension is added to the core code and kept
7935 in ext_nid order. There is a simple program 'tabtest.c' which checks
7936 this. New extensions are not added too often so this file can readily
7937 be maintained manually.
7939 There are two big advantages in doing things this way. The extensions
7940 can be looked up immediately and no longer need to be "added" using
7941 X509V3_add_standard_extensions(): this function now does nothing.
7942 [Side note: I get *lots* of email saying the extension code doesn't
7943 work because people forget to call this function]
7944 Also no dynamic allocation is done unless new extensions are added:
7945 so if we don't add custom extensions there is no need to call
7946 X509V3_EXT_cleanup().
7949 *) Modify enc utility's salting as follows: make salting the default. Add a
7950 magic header, so unsalted files fail gracefully instead of just decrypting
7951 to garbage. This is because not salting is a big security hole, so people
7952 should be discouraged from doing it.
7955 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7956 digest to be passed on the command line but it only used this
7957 parameter when signing a certificate. Modified so all relevant
7958 operations are affected by the digest parameter including the
7959 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7960 DSA key was used because it didn't fix the digest.
7963 *) Initial certificate chain verify code. Currently tests the untrusted
7964 certificates for consistency with the verify purpose (which is set
7965 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7967 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7968 this is because it will reject chains with invalid extensions whereas
7969 every previous version of OpenSSL and SSLeay made no checks at all.
7971 Trust code: checks the root CA for the relevant trust settings. Trust
7972 settings have an initial value consistent with the verify purpose: e.g.
7973 if the verify purpose is for SSL client use it expects the CA to be
7974 trusted for SSL client use. However the default value can be changed to
7975 permit custom trust settings: one example of this would be to only trust
7976 certificates from a specific "secure" set of CAs.
7978 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7979 which should be used for version portability: especially since the
7980 verify structure is likely to change more often now.
7982 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7983 to set them. If not set then assume SSL clients will verify SSL servers
7986 Two new options to the verify program: -untrusted allows a set of
7987 untrusted certificates to be passed in and -purpose which sets the
7988 intended purpose of the certificate. If a purpose is set then the
7989 new chain verify code is used to check extension consistency.
7992 *) Support for the authority information access extension.
7995 *) Modify RSA and DSA PEM read routines to transparently handle
7996 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7997 public keys in a format compatible with certificate
7998 SubjectPublicKeyInfo structures. Unfortunately there were already
7999 functions called *_PublicKey_* which used various odd formats so
8000 these are retained for compatibility: however the DSA variants were
8001 never in a public release so they have been deleted. Changed dsa/rsa
8002 utilities to handle the new format: note no releases ever handled public
8003 keys so we should be OK.
8005 The primary motivation for this change is to avoid the same fiasco
8006 that dogs private keys: there are several incompatible private key
8007 formats some of which are standard and some OpenSSL specific and
8008 require various evil hacks to allow partial transparent handling and
8009 even then it doesn't work with DER formats. Given the option anything
8010 other than PKCS#8 should be dumped: but the other formats have to
8011 stay in the name of compatibility.
8013 With public keys and the benefit of hindsight one standard format
8014 is used which works with EVP_PKEY, RSA or DSA structures: though
8015 it clearly returns an error if you try to read the wrong kind of key.
8017 Added a -pubkey option to the 'x509' utility to output the public key.
8018 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8019 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8020 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8021 that do the same as the EVP_PKEY_assign_*() except they up the
8022 reference count of the added key (they don't "swallow" the
8026 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8027 CRLs would fail if the file contained no certificates or no CRLs:
8028 added a new function to read in both types and return the number
8029 read: this means that if none are read it will be an error. The
8030 DER versions of the certificate and CRL reader would always fail
8031 because it isn't possible to mix certificates and CRLs in DER format
8032 without choking one or the other routine. Changed this to just read
8033 a certificate: this is the best we can do. Also modified the code
8034 in apps/verify.c to take notice of return codes: it was previously
8035 attempting to read in certificates from NULL pointers and ignoring
8036 any errors: this is one reason why the cert and CRL reader seemed
8037 to work. It doesn't check return codes from the default certificate
8038 routines: these may well fail if the certificates aren't installed.
8041 *) Code to support otherName option in GeneralName.
8044 *) First update to verify code. Change the verify utility
8045 so it warns if it is passed a self signed certificate:
8046 for consistency with the normal behaviour. X509_verify
8047 has been modified to it will now verify a self signed
8048 certificate if *exactly* the same certificate appears
8049 in the store: it was previously impossible to trust a
8050 single self signed certificate. This means that:
8051 openssl verify ss.pem
8052 now gives a warning about a self signed certificate but
8053 openssl verify -CAfile ss.pem ss.pem
8057 *) For servers, store verify_result in SSL_SESSION data structure
8058 (and add it to external session representation).
8059 This is needed when client certificate verifications fails,
8060 but an application-provided verification callback (set by
8061 SSL_CTX_set_cert_verify_callback) allows accepting the session
8062 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8063 but returns 1): When the session is reused, we have to set
8064 ssl->verify_result to the appropriate error code to avoid
8066 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8068 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8069 case in PKCS7_dataInit() where the signed PKCS7 structure
8070 didn't contain any existing data because it was being created.
8071 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8073 *) Add a salt to the key derivation routines in enc.c. This
8074 forms the first 8 bytes of the encrypted file. Also add a
8075 -S option to allow a salt to be input on the command line.
8078 *) New function X509_cmp(). Oddly enough there wasn't a function
8079 to compare two certificates. We do this by working out the SHA1
8080 hash and comparing that. X509_cmp() will be needed by the trust
8084 *) SSL_get1_session() is like SSL_get_session(), but increments
8085 the reference count in the SSL_SESSION returned.
8086 [Geoff Thorpe <geoff@eu.c2.net>]
8088 *) Fix for 'req': it was adding a null to request attributes.
8089 Also change the X509_LOOKUP and X509_INFO code to handle
8090 certificate auxiliary information.
8093 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8097 *) Add the possibility to add extra information to the memory leak
8098 detecting output, to form tracebacks, showing from where each
8099 allocation was originated: CRYPTO_push_info("constant string") adds
8100 the string plus current file name and line number to a per-thread
8101 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8102 is like calling CYRPTO_pop_info() until the stack is empty.
8103 Also updated memory leak detection code to be multi-thread-safe.
8106 *) Add options -text and -noout to pkcs7 utility and delete the
8107 encryption options which never did anything. Update docs.
8110 *) Add options to some of the utilities to allow the pass phrase
8111 to be included on either the command line (not recommended on
8112 OSes like Unix) or read from the environment. Update the
8113 manpages and fix a few bugs.
8116 *) Add a few manpages for some of the openssl commands.
8119 *) Fix the -revoke option in ca. It was freeing up memory twice,
8120 leaking and not finding already revoked certificates.
8123 *) Extensive changes to support certificate auxiliary information.
8124 This involves the use of X509_CERT_AUX structure and X509_AUX
8125 functions. An X509_AUX function such as PEM_read_X509_AUX()
8126 can still read in a certificate file in the usual way but it
8127 will also read in any additional "auxiliary information". By
8128 doing things this way a fair degree of compatibility can be
8129 retained: existing certificates can have this information added
8130 using the new 'x509' options.
8132 Current auxiliary information includes an "alias" and some trust
8133 settings. The trust settings will ultimately be used in enhanced
8134 certificate chain verification routines: currently a certificate
8135 can only be trusted if it is self signed and then it is trusted
8139 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8140 The problem was that one of the replacement routines had not been working
8141 since SSLeay releases. For now the offending routine has been replaced
8142 with non-optimised assembler. Even so, this now gives around 95%
8143 performance improvement for 1024 bit RSA signs.
8146 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8147 handling. Most clients have the effective key size in bits equal to
8148 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8149 A few however don't do this and instead use the size of the decrypted key
8150 to determine the RC2 key length and the AlgorithmIdentifier to determine
8151 the effective key length. In this case the effective key length can still
8152 be 40 bits but the key length can be 168 bits for example. This is fixed
8153 by manually forcing an RC2 key into the EVP_PKEY structure because the
8154 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8155 the key length and effective key length are equal.
8158 *) Add a bunch of functions that should simplify the creation of
8159 X509_NAME structures. Now you should be able to do:
8160 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8161 and have it automatically work out the correct field type and fill in
8162 the structures. The more adventurous can try:
8163 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8164 and it will (hopefully) work out the correct multibyte encoding.
8167 *) Change the 'req' utility to use the new field handling and multibyte
8168 copy routines. Before the DN field creation was handled in an ad hoc
8169 way in req, ca, and x509 which was rather broken and didn't support
8170 BMPStrings or UTF8Strings. Since some software doesn't implement
8171 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8172 using the dirstring_type option. See the new comment in the default
8173 openssl.cnf for more info.
8176 *) Make crypto/rand/md_rand.c more robust:
8177 - Assure unique random numbers after fork().
8178 - Make sure that concurrent threads access the global counter and
8179 md serializably so that we never lose entropy in them
8180 or use exactly the same state in multiple threads.
8181 Access to the large state is not always serializable because
8182 the additional locking could be a performance killer, and
8183 md should be large enough anyway.
8186 *) New file apps/app_rand.c with commonly needed functionality
8187 for handling the random seed file.
8189 Use the random seed file in some applications that previously did not:
8191 dsaparam -genkey (which also ignored its '-rand' option),
8194 x509 (when signing).
8195 Except on systems with /dev/urandom, it is crucial to have a random
8196 seed file at least for key creation, DSA signing, and for DH exchanges;
8197 for RSA signatures we could do without one.
8199 gendh and gendsa (unlike genrsa) used to read only the first byte
8200 of each file listed in the '-rand' option. The function as previously
8201 found in genrsa is now in app_rand.c and is used by all programs
8202 that support '-rand'.
8205 *) In RAND_write_file, use mode 0600 for creating files;
8206 don't just chmod when it may be too late.
8209 *) Report an error from X509_STORE_load_locations
8210 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8213 *) New function ASN1_mbstring_copy() this copies a string in either
8214 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8215 into an ASN1_STRING type. A mask of permissible types is passed
8216 and it chooses the "minimal" type to use or an error if not type
8220 *) Add function equivalents to the various macros in asn1.h. The old
8221 macros are retained with an M_ prefix. Code inside the library can
8222 use the M_ macros. External code (including the openssl utility)
8223 should *NOT* in order to be "shared library friendly".
8226 *) Add various functions that can check a certificate's extensions
8227 to see if it usable for various purposes such as SSL client,
8228 server or S/MIME and CAs of these types. This is currently
8229 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8230 verification. Also added a -purpose flag to x509 utility to
8231 print out all the purposes.
8234 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8238 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8239 for, obtain and decode and extension and obtain its critical flag.
8240 This allows all the necessary extension code to be handled in a
8241 single function call.
8244 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8245 platforms. See crypto/rc4/rc4_enc.c for further details.
8248 *) New -noout option to asn1parse. This causes no output to be produced
8249 its main use is when combined with -strparse and -out to extract data
8250 from a file (which may not be in ASN.1 format).
8253 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8254 when producing the local key id.
8255 [Richard Levitte <levitte@stacken.kth.se>]
8257 *) New option -dhparam in s_server. This allows a DH parameter file to be
8258 stated explicitly. If it is not stated then it tries the first server
8259 certificate file. The previous behaviour hard coded the filename
8263 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8264 a public key to be input or output. For example:
8265 openssl rsa -in key.pem -pubout -out pubkey.pem
8266 Also added necessary DSA public key functions to handle this.
8269 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8270 in the message. This was handled by allowing
8271 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8272 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8274 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8275 to the end of the strings whereas this didn't. This would cause problems
8276 if strings read with d2i_ASN1_bytes() were later modified.
8277 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8279 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8280 data and it contains EOF it will end up returning an error. This is
8281 caused by input 46 bytes long. The cause is due to the way base64
8282 BIOs find the start of base64 encoded data. They do this by trying a
8283 trial decode on each line until they find one that works. When they
8284 do a flag is set and it starts again knowing it can pass all the
8285 data directly through the decoder. Unfortunately it doesn't reset
8286 the context it uses. This means that if EOF is reached an attempt
8287 is made to pass two EOFs through the context and this causes the
8288 resulting error. This can also cause other problems as well. As is
8289 usual with these problems it takes *ages* to find and the fix is
8290 trivial: move one line.
8291 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8293 *) Ugly workaround to get s_client and s_server working under Windows. The
8294 old code wouldn't work because it needed to select() on sockets and the
8295 tty (for keypresses and to see if data could be written). Win32 only
8296 supports select() on sockets so we select() with a 1s timeout on the
8297 sockets and then see if any characters are waiting to be read, if none
8298 are present then we retry, we also assume we can always write data to
8299 the tty. This isn't nice because the code then blocks until we've
8300 received a complete line of data and it is effectively polling the
8301 keyboard at 1s intervals: however it's quite a bit better than not
8302 working at all :-) A dedicated Windows application might handle this
8303 with an event loop for example.
8306 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8307 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8308 will be called when RSA_sign() and RSA_verify() are used. This is useful
8309 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8310 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8311 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8312 This necessitated the support of an extra signature type NID_md5_sha1
8313 for SSL signatures and modifications to the SSL library to use it instead
8314 of calling RSA_public_decrypt() and RSA_private_encrypt().
8317 *) Add new -verify -CAfile and -CApath options to the crl program, these
8318 will lookup a CRL issuers certificate and verify the signature in a
8319 similar way to the verify program. Tidy up the crl program so it
8320 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8321 less strict. It will now permit CRL extensions even if it is not
8322 a V2 CRL: this will allow it to tolerate some broken CRLs.
8325 *) Initialize all non-automatic variables each time one of the openssl
8326 sub-programs is started (this is necessary as they may be started
8327 multiple times from the "OpenSSL>" prompt).
8328 [Lennart Bang, Bodo Moeller]
8330 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8331 removing all other RSA functionality (this is what NO_RSA does). This
8332 is so (for example) those in the US can disable those operations covered
8333 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8337 *) Non-copying interface to BIO pairs.
8338 (still largely untested)
8341 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8342 ASCII string. This was handled independently in various places before.
8345 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8346 UTF8 strings a character at a time.
8349 *) Use client_version from client hello to select the protocol
8350 (s23_srvr.c) and for RSA client key exchange verification
8351 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8354 *) Add various utility functions to handle SPKACs, these were previously
8355 handled by poking round in the structure internals. Added new function
8356 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8357 print, verify and generate SPKACs. Based on an original idea from
8358 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8361 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8364 *) Allow the config file extension section to be overwritten on the
8365 command line. Based on an original idea from Massimiliano Pala
8366 <madwolf@comune.modena.it>. The new option is called -extensions
8367 and can be applied to ca, req and x509. Also -reqexts to override
8368 the request extensions in req and -crlexts to override the crl extensions
8372 *) Add new feature to the SPKAC handling in ca. Now you can include
8373 the same field multiple times by preceding it by "XXXX." for example:
8376 this is the same syntax as used in the req config file.
8379 *) Allow certificate extensions to be added to certificate requests. These
8380 are specified in a 'req_extensions' option of the req section of the
8381 config file. They can be printed out with the -text option to req but
8382 are otherwise ignored at present.
8385 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8386 data read consists of only the final block it would not decrypted because
8387 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8388 A misplaced 'break' also meant the decrypted final block might not be
8389 copied until the next read.
8392 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8393 a few extra parameters to the DH structure: these will be useful if
8394 for example we want the value of 'q' or implement X9.42 DH.
8397 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8398 provides hooks that allow the default DSA functions or functions on a
8399 "per key" basis to be replaced. This allows hardware acceleration and
8400 hardware key storage to be handled without major modification to the
8401 library. Also added low level modexp hooks and CRYPTO_EX structure and
8402 associated functions.
8405 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8406 as "read only": it can't be written to and the buffer it points to will
8407 not be freed. Reading from a read only BIO is much more efficient than
8408 a normal memory BIO. This was added because there are several times when
8409 an area of memory needs to be read from a BIO. The previous method was
8410 to create a memory BIO and write the data to it, this results in two
8411 copies of the data and an O(n^2) reading algorithm. There is a new
8412 function BIO_new_mem_buf() which creates a read only memory BIO from
8413 an area of memory. Also modified the PKCS#7 routines to use read only
8417 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8418 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8419 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8420 but a retry condition occured while trying to read the rest.
8423 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8424 NID_pkcs7_encrypted by default: this was wrong since this should almost
8425 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8426 the encrypted data type: this is a more sensible place to put it and it
8427 allows the PKCS#12 code to be tidied up that duplicated this
8431 *) Changed obj_dat.pl script so it takes its input and output files on
8432 the command line. This should avoid shell escape redirection problems
8436 *) Initial support for certificate extension requests, these are included
8437 in things like Xenroll certificate requests. Included functions to allow
8438 extensions to be obtained and added.
8441 *) -crlf option to s_client and s_server for sending newlines as
8442 CRLF (as required by many protocols).
8445 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8447 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8448 [Ralf S. Engelschall]
8450 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8451 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8453 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8457 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8458 DH parameters/keys (q is lost during that conversion, but the resulting
8459 DH parameters contain its length).
8461 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8462 much faster than DH_generate_parameters (which creates parameters
8463 where p = 2*q + 1), and also the smaller q makes DH computations
8464 much more efficient (160-bit exponentiation instead of 1024-bit
8465 exponentiation); so this provides a convenient way to support DHE
8466 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8467 utter importance to use
8468 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8470 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8471 when such DH parameters are used, because otherwise small subgroup
8472 attacks may become possible!
8475 *) Avoid memory leak in i2d_DHparams.
8478 *) Allow the -k option to be used more than once in the enc program:
8479 this allows the same encrypted message to be read by multiple recipients.
8482 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8483 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8484 it will always use the numerical form of the OID, even if it has a short
8488 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8489 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8490 otherwise bn_mod_exp was called. In the case of hardware keys for example
8491 no private key components need be present and it might store extra data
8492 in the RSA structure, which cannot be accessed from bn_mod_exp.
8493 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8494 private key operations.
8497 *) Added support for SPARC Linux.
8500 *) pem_password_cb function type incompatibly changed from
8501 typedef int pem_password_cb(char *buf, int size, int rwflag);
8503 ....(char *buf, int size, int rwflag, void *userdata);
8504 so that applications can pass data to their callbacks:
8505 The PEM[_ASN1]_{read,write}... functions and macros now take an
8506 additional void * argument, which is just handed through whenever
8507 the password callback is called.
8508 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8510 New function SSL_CTX_set_default_passwd_cb_userdata.
8512 Compatibility note: As many C implementations push function arguments
8513 onto the stack in reverse order, the new library version is likely to
8514 interoperate with programs that have been compiled with the old
8515 pem_password_cb definition (PEM_whatever takes some data that
8516 happens to be on the stack as its last argument, and the callback
8517 just ignores this garbage); but there is no guarantee whatsoever that
8520 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8521 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8522 problems not only on Windows, but also on some Unix platforms.
8523 To avoid problematic command lines, these definitions are now in an
8524 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8525 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8528 *) MIPS III/IV assembler module is reimplemented.
8531 *) More DES library cleanups: remove references to srand/rand and
8532 delete an unused file.
8535 *) Add support for the the free Netwide assembler (NASM) under Win32,
8536 since not many people have MASM (ml) and it can be hard to obtain.
8537 This is currently experimental but it seems to work OK and pass all
8538 the tests. Check out INSTALL.W32 for info.
8541 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8542 without temporary keys kept an extra copy of the server key,
8543 and connections with temporary keys did not free everything in case
8547 *) New function RSA_check_key and new openssl rsa option -check
8548 for verifying the consistency of RSA keys.
8549 [Ulf Moeller, Bodo Moeller]
8551 *) Various changes to make Win32 compile work:
8552 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8553 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8554 comparison" warnings.
8555 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8558 *) Add a debugging option to PKCS#5 v2 key generation function: when
8559 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8560 derived keys are printed to stderr.
8563 *) Copy the flags in ASN1_STRING_dup().
8564 [Roman E. Pavlov <pre@mo.msk.ru>]
8566 *) The x509 application mishandled signing requests containing DSA
8567 keys when the signing key was also DSA and the parameters didn't match.
8569 It was supposed to omit the parameters when they matched the signing key:
8570 the verifying software was then supposed to automatically use the CA's
8571 parameters if they were absent from the end user certificate.
8573 Omitting parameters is no longer recommended. The test was also
8574 the wrong way round! This was probably due to unusual behaviour in
8575 EVP_cmp_parameters() which returns 1 if the parameters match.
8576 This meant that parameters were omitted when they *didn't* match and
8577 the certificate was useless. Certificates signed with 'ca' didn't have
8579 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8581 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8582 The interface is as follows:
8583 Applications can use
8584 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8585 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8586 "off" is now the default.
8587 The library internally uses
8588 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8589 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8590 to disable memory-checking temporarily.
8592 Some inconsistent states that previously were possible (and were
8593 even the default) are now avoided.
8595 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8596 with each memory chunk allocated; this is occasionally more helpful
8597 than just having a counter.
8599 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8601 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8605 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8606 which largely parallels "options", but is for changing API behaviour,
8607 whereas "options" are about protocol behaviour.
8608 Initial "mode" flags are:
8610 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8611 a single record has been written.
8612 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8613 retries use the same buffer location.
8614 (But all of the contents must be
8618 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8621 *) Fix problems with no-hmac etc.
8622 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8624 *) New functions RSA_get_default_method(), RSA_set_method() and
8625 RSA_get_method(). These allows replacement of RSA_METHODs without having
8626 to mess around with the internals of an RSA structure.
8629 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8630 Also really enable memory leak checks in openssl.c and in some
8632 [Chad C. Mulligan, Bodo Moeller]
8634 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8635 up the length of negative integers. This has now been simplified to just
8636 store the length when it is first determined and use it later, rather
8637 than trying to keep track of where data is copied and updating it to
8639 [Steve Henson, reported by Brien Wheeler
8640 <bwheeler@authentica-security.com>]
8642 *) Add a new function PKCS7_signatureVerify. This allows the verification
8643 of a PKCS#7 signature but with the signing certificate passed to the
8644 function itself. This contrasts with PKCS7_dataVerify which assumes the
8645 certificate is present in the PKCS#7 structure. This isn't always the
8646 case: certificates can be omitted from a PKCS#7 structure and be
8647 distributed by "out of band" means (such as a certificate database).
8650 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8651 function prototypes in pem.h, also change util/mkdef.pl to add the
8652 necessary function names.
8655 *) mk1mf.pl (used by Windows builds) did not properly read the
8656 options set by Configure in the top level Makefile, and Configure
8657 was not even able to write more than one option correctly.
8658 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8661 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8662 file to be loaded from a BIO or FILE pointer. The BIO version will
8663 for example allow memory BIOs to contain config info.
8666 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8667 Whoever hopes to achieve shared-library compatibility across versions
8668 must use this, not the compile-time macro.
8669 (Exercise 0.9.4: Which is the minimum library version required by
8671 Note: All this applies only to multi-threaded programs, others don't
8675 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8676 through a BIO pair triggered the default case, i.e.
8677 SSLerr(...,SSL_R_UNKNOWN_STATE).
8680 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8681 can use the SSL library even if none of the specific BIOs is
8685 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8686 for the encoded length.
8687 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8689 *) Add initial documentation of the X509V3 functions.
8692 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8693 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8694 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8695 secure PKCS#8 private key format with a high iteration count.
8698 *) Fix determination of Perl interpreter: A perl or perl5
8699 _directory_ in $PATH was also accepted as the interpreter.
8700 [Ralf S. Engelschall]
8702 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8703 wrong with it but it was very old and did things like calling
8704 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8708 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8709 to use the new extension code.
8712 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8713 with macros. This should make it easier to change their form, add extra
8714 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8718 *) Add to configuration table a new entry that can specify an alternative
8719 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8720 according to Mark Crispin <MRC@Panda.COM>.
8724 *) DES CBC did not update the IV. Weird.
8727 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8728 Changing the behaviour of the former might break existing programs --
8729 where IV updating is needed, des_ncbc_encrypt can be used.
8732 *) When bntest is run from "make test" it drives bc to check its
8733 calculations, as well as internally checking them. If an internal check
8734 fails, it needs to cause bc to give a non-zero result or make test carries
8735 on without noticing the failure. Fixed.
8738 *) DES library cleanups.
8741 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8742 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8743 ciphers. NOTE: although the key derivation function has been verified
8744 against some published test vectors it has not been extensively tested
8745 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8749 *) Instead of "mkdir -p", which is not fully portable, use new
8750 Perl script "util/mkdir-p.pl".
8753 *) Rewrite the way password based encryption (PBE) is handled. It used to
8754 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8755 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8756 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8757 the 'parameter' field of the AlgorithmIdentifier is passed to the
8758 underlying key generation function so it must do its own ASN1 parsing.
8759 This has also changed the EVP_PBE_CipherInit() function which now has a
8760 'parameter' argument instead of literal salt and iteration count values
8761 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8764 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8765 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8766 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8767 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8768 value was just used as a "magic string" and not used directly its
8769 value doesn't matter.
8772 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8776 *) "linux-sparc64" configuration (ultrapenguin).
8777 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8778 "linux-sparc" configuration.
8779 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8781 *) config now generates no-xxx options for missing ciphers.
8784 *) Support the EBCDIC character set (work in progress).
8785 File ebcdic.c not yet included because it has a different license.
8786 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8788 *) Support BS2000/OSD-POSIX.
8789 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8791 *) Make callbacks for key generation use void * instead of char *.
8794 *) Make S/MIME samples compile (not yet tested).
8797 *) Additional typesafe stacks.
8800 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8804 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8806 *) New configuration variant "sco5-gcc".
8808 *) Updated some demos.
8809 [Sean O Riordain, Wade Scholine]
8811 *) Add missing BIO_free at exit of pkcs12 application.
8814 *) Fix memory leak in conf.c.
8817 *) Updates for Win32 to assembler version of MD5.
8820 *) Set #! path to perl in apps/der_chop to where we found it
8821 instead of using a fixed path.
8824 *) SHA library changes for irix64-mips4-cc.
8827 *) Improvements for VMS support.
8831 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8833 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8834 This also avoids the problems with SC4.2 and unpatched SC5.
8835 [Andy Polyakov <appro@fy.chalmers.se>]
8837 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8838 These are required because of the typesafe stack would otherwise break
8839 existing code. If old code used a structure member which used to be STACK
8840 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8841 sk_num or sk_value it would produce an error because the num, data members
8842 are not present in STACK_OF. Now it just produces a warning. sk_set
8843 replaces the old method of assigning a value to sk_value
8844 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8845 that does this will no longer work (and should use sk_set instead) but
8846 this could be regarded as a "questionable" behaviour anyway.
8849 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8850 correctly handle encrypted S/MIME data.
8853 *) Change type of various DES function arguments from des_cblock
8854 (which means, in function argument declarations, pointer to char)
8855 to des_cblock * (meaning pointer to array with 8 char elements),
8856 which allows the compiler to do more typechecking; it was like
8857 that back in SSLeay, but with lots of ugly casts.
8859 Introduce new type const_des_cblock.
8862 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8863 problems: find RecipientInfo structure that matches recipient certificate
8864 and initialise the ASN1 structures properly based on passed cipher.
8867 *) Belatedly make the BN tests actually check the results.
8870 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8871 to and from BNs: it was completely broken. New compilation option
8872 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8873 key elements as negative integers.
8876 *) Reorganize and speed up MD5.
8877 [Andy Polyakov <appro@fy.chalmers.se>]
8880 [Richard Levitte <richard@levitte.org>]
8882 *) New option -out to asn1parse to allow the parsed structure to be
8883 output to a file. This is most useful when combined with the -strparse
8884 option to examine the output of things like OCTET STRINGS.
8887 *) Make SSL library a little more fool-proof by not requiring any longer
8888 that SSL_set_{accept,connect}_state be called before
8889 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8890 in many applications because usually everything *appeared* to work as
8891 intended anyway -- now it really works as intended).
8894 *) Move openssl.cnf out of lib/.
8897 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8898 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8899 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8900 [Ralf S. Engelschall]
8902 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8903 handle PKCS#7 enveloped data properly.
8904 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8906 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8907 copying pointers. The cert_st handling is changed by this in
8908 various ways (and thus what used to be known as ctx->default_cert
8909 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8910 any longer when s->cert does not give us what we need).
8911 ssl_cert_instantiate becomes obsolete by this change.
8912 As soon as we've got the new code right (possibly it already is?),
8913 we have solved a couple of bugs of the earlier code where s->cert
8914 was used as if it could not have been shared with other SSL structures.
8916 Note that using the SSL API in certain dirty ways now will result
8917 in different behaviour than observed with earlier library versions:
8918 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8919 does not influence s as it used to.
8921 In order to clean up things more thoroughly, inside SSL_SESSION
8922 we don't use CERT any longer, but a new structure SESS_CERT
8923 that holds per-session data (if available); currently, this is
8924 the peer's certificate chain and, for clients, the server's certificate
8925 and temporary key. CERT holds only those values that can have
8926 meaningful defaults in an SSL_CTX.
8929 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8930 from the internal representation. Various PKCS#7 fixes: remove some
8931 evil casts and set the enc_dig_alg field properly based on the signing
8935 *) Allow PKCS#12 password to be set from the command line or the
8936 environment. Let 'ca' get its config file name from the environment
8937 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8941 *) Allow certificate policies extension to use an IA5STRING for the
8942 organization field. This is contrary to the PKIX definition but
8943 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8947 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8948 without disallowing inline assembler and the like for non-pedantic builds.
8951 *) Support Borland C++ builder.
8952 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8957 *) SHA-1 cleanups and performance enhancements.
8958 [Andy Polyakov <appro@fy.chalmers.se>]
8960 *) Sparc v8plus assembler for the bignum library.
8961 [Andy Polyakov <appro@fy.chalmers.se>]
8963 *) Accept any -xxx and +xxx compiler options in Configure.
8966 *) Update HPUX configuration.
8969 *) Add missing sk_<type>_unshift() function to safestack.h
8970 [Ralf S. Engelschall]
8972 *) New function SSL_CTX_use_certificate_chain_file that sets the
8973 "extra_cert"s in addition to the certificate. (This makes sense
8974 only for "PEM" format files, as chains as a whole are not
8978 *) Support verify_depth from the SSL API.
8979 x509_vfy.c had what can be considered an off-by-one-error:
8980 Its depth (which was not part of the external interface)
8981 was actually counting the number of certificates in a chain;
8982 now it really counts the depth.
8985 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8986 instead of X509err, which often resulted in confusing error
8987 messages since the error codes are not globally unique
8988 (e.g. an alleged error in ssl3_accept when a certificate
8989 didn't match the private key).
8991 *) New function SSL_CTX_set_session_id_context that allows to set a default
8992 value (so that you don't need SSL_set_session_id_context for each
8993 connection using the SSL_CTX).
8996 *) OAEP decoding bug fix.
8999 *) Support INSTALL_PREFIX for package builders, as proposed by
9003 *) New Configure options "threads" and "no-threads". For systems
9004 where the proper compiler options are known (currently Solaris
9005 and Linux), "threads" is the default.
9008 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9011 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9012 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9013 such as /usr/local/bin.
9016 *) "make linux-shared" to build shared libraries.
9017 [Niels Poppe <niels@netbox.org>]
9019 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9022 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9023 extension adding in x509 utility.
9026 *) Remove NOPROTO sections and error code comments.
9029 *) Partial rewrite of the DEF file generator to now parse the ANSI
9033 *) New Configure options --prefix=DIR and --openssldir=DIR.
9036 *) Complete rewrite of the error code script(s). It is all now handled
9037 by one script at the top level which handles error code gathering,
9038 header rewriting and C source file generation. It should be much better
9039 than the old method: it now uses a modified version of Ulf's parser to
9040 read the ANSI prototypes in all header files (thus the old K&R definitions
9041 aren't needed for error creation any more) and do a better job of
9042 translating function codes into names. The old 'ASN1 error code imbedded
9043 in a comment' is no longer necessary and it doesn't use .err files which
9044 have now been deleted. Also the error code call doesn't have to appear all
9045 on one line (which resulted in some large lines...).
9048 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9051 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9052 0 (which usually indicates a closed connection), but continue reading.
9055 *) Fix some race conditions.
9058 *) Add support for CRL distribution points extension. Add Certificate
9059 Policies and CRL distribution points documentation.
9062 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9065 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9066 8 of keying material. Merlin has also confirmed interop with this fix
9067 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9068 [Merlin Hughes <merlin@baltimore.ie>]
9070 *) Fix lots of warnings.
9071 [Richard Levitte <levitte@stacken.kth.se>]
9073 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9074 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9075 [Richard Levitte <levitte@stacken.kth.se>]
9077 *) Fix problems with sizeof(long) == 8.
9078 [Andy Polyakov <appro@fy.chalmers.se>]
9080 *) Change functions to ANSI C.
9083 *) Fix typos in error codes.
9084 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9086 *) Remove defunct assembler files from Configure.
9089 *) SPARC v8 assembler BIGNUM implementation.
9090 [Andy Polyakov <appro@fy.chalmers.se>]
9092 *) Support for Certificate Policies extension: both print and set.
9093 Various additions to support the r2i method this uses.
9096 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9097 return a const string when you are expecting an allocated buffer.
9100 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9101 types DirectoryString and DisplayText.
9104 *) Add code to allow r2i extensions to access the configuration database,
9105 add an LHASH database driver and add several ctx helper functions.
9108 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9109 fail when they extended the size of a BIGNUM.
9112 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9113 support typesafe stack.
9116 *) Fix typo in SSL_[gs]et_options().
9117 [Nils Frostberg <nils@medcom.se>]
9119 *) Delete various functions and files that belonged to the (now obsolete)
9120 old X509V3 handling code.
9123 *) New Configure option "rsaref".
9126 *) Don't auto-generate pem.h.
9129 *) Introduce type-safe ASN.1 SETs.
9132 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9133 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9135 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9136 that links with OpenSSL (well at least cause lots of warnings), but fear
9137 not: the conversion is trivial, and it eliminates loads of evil casts. A
9138 few STACKed things have been converted already. Feel free to convert more.
9139 In the fullness of time, I'll do away with the STACK type altogether.
9142 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9143 specified in <certfile> by updating the entry in the index.txt file.
9144 This way one no longer has to edit the index.txt file manually for
9145 revoking a certificate. The -revoke option does the gory details now.
9146 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9148 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9149 `-text' option at all and this way the `-noout -text' combination was
9150 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9151 [Ralf S. Engelschall]
9153 *) Make sure a corresponding plain text error message exists for the
9154 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9155 verify callback function determined that a certificate was revoked.
9156 [Ralf S. Engelschall]
9158 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9159 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9160 all available cipers including rc5, which was forgotten until now.
9161 In order to let the testing shell script know which algorithms
9162 are available, a new (up to now undocumented) command
9163 "openssl list-cipher-commands" is used.
9166 *) Bugfix: s_client occasionally would sleep in select() when
9167 it should have checked SSL_pending() first.
9170 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9171 the raw DSA values prior to ASN.1 encoding.
9174 *) Tweaks to Configure
9175 [Niels Poppe <niels@netbox.org>]
9177 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9181 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9184 *) New config option to avoid instructions that are illegal on the 80386.
9185 The default code is faster, but requires at least a 486.
9188 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9189 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9190 same as SSL2_VERSION anyway.
9193 *) New "-showcerts" option for s_client.
9196 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9197 application. Various cleanups and fixes.
9200 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9201 modify error routines to work internally. Add error codes and PBE init
9202 to library startup routines.
9205 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9206 packing functions to asn1 and evp. Changed function names and error
9207 codes along the way.
9210 *) PKCS12 integration: and so it begins... First of several patches to
9211 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9212 objects to objects.h
9215 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9216 and display support for Thawte strong extranet extension.
9219 *) Add LinuxPPC support.
9220 [Jeff Dubrule <igor@pobox.org>]
9222 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9223 bn_div_words in alpha.s.
9224 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9226 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9227 OAEP isn't supported when OpenSSL is built with RSAref.
9228 [Ulf Moeller <ulf@fitug.de>]
9230 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9231 so they no longer are missing under -DNOPROTO.
9232 [Soren S. Jorvang <soren@t.dk>]
9235 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9237 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9238 doesn't work when the session is reused. Coming soon!
9241 *) Fix a security hole, that allows sessions to be reused in the wrong
9242 context thus bypassing client cert protection! All software that uses
9243 client certs and session caches in multiple contexts NEEDS PATCHING to
9244 allow session reuse! A fuller solution is in the works.
9245 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9247 *) Some more source tree cleanups (removed obsolete files
9248 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9249 permission on "config" script to be executable) and a fix for the INSTALL
9251 [Ulf Moeller <ulf@fitug.de>]
9253 *) Remove some legacy and erroneous uses of malloc, free instead of
9255 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9257 *) Make rsa_oaep_test return non-zero on error.
9258 [Ulf Moeller <ulf@fitug.de>]
9260 *) Add support for native Solaris shared libraries. Configure
9261 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9262 if someone would make that last step automatic.
9263 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9265 *) ctx_size was not built with the right compiler during "make links". Fixed.
9268 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9269 except NULL ciphers". This means the default cipher list will no longer
9270 enable NULL ciphers. They need to be specifically enabled e.g. with
9271 the string "DEFAULT:eNULL".
9274 *) Fix to RSA private encryption routines: if p < q then it would
9275 occasionally produce an invalid result. This will only happen with
9276 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9279 *) Be less restrictive and allow also `perl util/perlpath.pl
9280 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9281 because this way one can also use an interpreter named `perl5' (which is
9282 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9283 installed as `perl').
9284 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9286 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9287 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9289 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9290 advapi32.lib to Win32 build and change the pem test comparision
9291 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9292 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9293 and crypto/des/ede_cbcm_enc.c.
9296 *) DES quad checksum was broken on big-endian architectures. Fixed.
9299 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9300 Win32 test batch file so it (might) work again. The Win32 test batch file
9301 is horrible: I feel ill....
9304 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9305 in e_os.h. Audit of header files to check ANSI and non ANSI
9306 sections: 10 functions were absent from non ANSI section and not exported
9307 from Windows DLLs. Fixed up libeay.num for new functions.
9310 *) Make `openssl version' output lines consistent.
9311 [Ralf S. Engelschall]
9313 *) Fix Win32 symbol export lists for BIO functions: Added
9314 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9315 to ms/libeay{16,32}.def.
9316 [Ralf S. Engelschall]
9318 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9319 fine under Unix and passes some trivial tests I've now added. But the
9320 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9321 added to make sure no one expects that this stuff really works in the
9322 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9323 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9325 [Ralf S. Engelschall]
9327 *) Fix the generation of two part addresses in perl.
9328 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9330 *) Add config entry for Linux on MIPS.
9331 [John Tobey <jtobey@channel1.com>]
9333 *) Make links whenever Configure is run, unless we are on Windoze.
9336 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9337 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9341 *) Add a useful kludge to allow package maintainers to specify compiler and
9342 other platforms details on the command line without having to patch the
9343 Configure script everytime: One now can use ``perl Configure
9344 <id>:<details>'', i.e. platform ids are allowed to have details appended
9345 to them (seperated by colons). This is treated as there would be a static
9346 pre-configured entry in Configure's %table under key <id> with value
9347 <details> and ``perl Configure <id>'' is called. So, when you want to
9348 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9349 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9350 now, which overrides the FreeBSD-elf entry on-the-fly.
9351 [Ralf S. Engelschall]
9353 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9356 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9357 on the `perl Configure ...' command line. This way one can compile
9358 OpenSSL libraries with Position Independent Code (PIC) which is needed
9359 for linking it into DSOs.
9360 [Ralf S. Engelschall]
9362 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9366 *) Cleaned up the LICENSE document: The official contact for any license
9367 questions now is the OpenSSL core team under openssl-core@openssl.org.
9368 And add a paragraph about the dual-license situation to make sure people
9369 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9370 to the OpenSSL toolkit.
9371 [Ralf S. Engelschall]
9373 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9374 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9375 Additonally cleaned up the `make links' target: Remove unnecessary
9376 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9377 to speed processing and no longer clutter the display with confusing
9378 stuff. Instead only the actually done links are displayed.
9379 [Ralf S. Engelschall]
9381 *) Permit null encryption ciphersuites, used for authentication only. It used
9382 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9383 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9387 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9388 signed attributes when verifying signatures (this would break them),
9389 the detached data encoding was wrong and public keys obtained using
9390 X509_get_pubkey() weren't freed.
9393 *) Add text documentation for the BUFFER functions. Also added a work around
9394 to a Win95 console bug. This was triggered by the password read stuff: the
9395 last character typed gets carried over to the next fread(). If you were
9396 generating a new cert request using 'req' for example then the last
9397 character of the passphrase would be CR which would then enter the first
9401 *) Added the new `Includes OpenSSL Cryptography Software' button as
9402 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9403 button and can be used by applications based on OpenSSL to show the
9404 relationship to the OpenSSL project.
9405 [Ralf S. Engelschall]
9407 *) Remove confusing variables in function signatures in files
9408 ssl/ssl_lib.c and ssl/ssl.h.
9409 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9411 *) Don't install bss_file.c under PREFIX/include/
9412 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9414 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9415 functions that return function pointers and has support for NT specific
9416 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9417 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9418 unsigned to signed types: this was killing the Win32 compile.
9421 *) Add new certificate file to stack functions,
9422 SSL_add_dir_cert_subjects_to_stack() and
9423 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9424 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9425 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9426 This means that Apache-SSL and similar packages don't have to mess around
9427 to add as many CAs as they want to the preferred list.
9430 *) Experiment with doxygen documentation. Currently only partially applied to
9432 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9433 openssl.doxy as the configuration file.
9436 *) Get rid of remaining C++-style comments which strict C compilers hate.
9437 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9439 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9440 compiled in by default: it has problems with large keys.
9443 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9444 DH private keys and/or callback functions which directly correspond to
9445 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9446 is needed for applications which have to configure certificates on a
9447 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9449 For the RSA certificate situation is makes no difference, but
9450 for the DSA certificate situation this fixes the "no shared cipher"
9451 problem where the OpenSSL cipher selection procedure failed because the
9452 temporary keys were not overtaken from the context and the API provided
9453 no way to reconfigure them.
9454 The new functions now let applications reconfigure the stuff and they
9455 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9456 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9457 non-public-API function ssl_cert_instantiate() is used as a helper
9458 function and also to reduce code redundancy inside ssl_rsa.c.
9459 [Ralf S. Engelschall]
9461 *) Move s_server -dcert and -dkey options out of the undocumented feature
9462 area because they are useful for the DSA situation and should be
9463 recognized by the users.
9464 [Ralf S. Engelschall]
9466 *) Fix the cipher decision scheme for export ciphers: the export bits are
9467 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9468 SSL_EXP_MASK. So, the original variable has to be used instead of the
9469 already masked variable.
9470 [Richard Levitte <levitte@stacken.kth.se>]
9472 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9473 [Richard Levitte <levitte@stacken.kth.se>]
9475 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9476 from `int' to `unsigned int' because it's a length and initialized by
9477 EVP_DigestFinal() which expects an `unsigned int *'.
9478 [Richard Levitte <levitte@stacken.kth.se>]
9480 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9481 script. Instead use the usual Shell->Perl transition trick.
9482 [Ralf S. Engelschall]
9484 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9485 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9486 -noout -modulus' as it's already the case for `openssl rsa -noout
9487 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9488 currently the public key is printed (a decision which was already done by
9489 `openssl dsa -modulus' in the past) which serves a similar purpose.
9490 Additionally the NO_RSA no longer completely removes the whole -modulus
9491 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9493 [Ralf S. Engelschall]
9495 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9496 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9497 [Arne Ansper <arne@ats.cyber.ee>]
9499 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9500 to be added. Now both 'req' and 'ca' can use new objects defined in the
9504 *) Add cool BIO that does syslog (or event log on NT).
9505 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9507 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9508 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9509 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9510 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9513 *) Add preliminary config info for new extension code.
9516 *) Make RSA_NO_PADDING really use no padding.
9517 [Ulf Moeller <ulf@fitug.de>]
9519 *) Generate errors when private/public key check is done.
9522 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9523 for some CRL extensions and new objects added.
9526 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9527 key usage extension and fuller support for authority key id.
9530 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9531 padding method for RSA, which is recommended for new applications in PKCS
9532 #1 v2.0 (RFC 2437, October 1998).
9533 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9534 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9535 against Bleichbacher's attack on RSA.
9536 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9539 *) Updates to the new SSL compression code
9540 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9542 *) Fix so that the version number in the master secret, when passed
9543 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9544 (because the server will not accept higher), that the version number
9545 is 0x03,0x01, not 0x03,0x00
9546 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9548 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9549 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9550 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9553 *) Support for RAW extensions where an arbitrary extension can be
9554 created by including its DER encoding. See apps/openssl.cnf for
9558 *) Make sure latest Perl versions don't interpret some generated C array
9559 code as Perl array code in the crypto/err/err_genc.pl script.
9560 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9562 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9563 not many people have the assembler. Various Win32 compilation fixes and
9564 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9568 *) Modify configure script 'Configure' to automatically create crypto/date.h
9569 file under Win32 and also build pem.h from pem.org. New script
9570 util/mkfiles.pl to create the MINFO file on environments that can't do a
9571 'make files': perl util/mkfiles.pl >MINFO should work.
9574 *) Major rework of DES function declarations, in the pursuit of correctness
9575 and purity. As a result, many evil casts evaporated, and some weirdness,
9576 too. You may find this causes warnings in your code. Zapping your evil
9577 casts will probably fix them. Mostly.
9580 *) Fix for a typo in asn1.h. Bug fix to object creation script
9581 obj_dat.pl. It considered a zero in an object definition to mean
9582 "end of object": none of the objects in objects.h have any zeros
9583 so it wasn't spotted.
9584 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9586 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9587 Masking (CBCM). In the absence of test vectors, the best I have been able
9588 to do is check that the decrypt undoes the encrypt, so far. Send me test
9589 vectors if you have them.
9592 *) Correct calculation of key length for export ciphers (too much space was
9593 allocated for null ciphers). This has not been tested!
9596 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9597 message is now correct (it understands "crypto" and "ssl" on its
9598 command line). There is also now an "update" option. This will update
9599 the util/ssleay.num and util/libeay.num files with any new functions.
9601 perl util/mkdef.pl crypto ssl update
9602 it will update them.
9605 *) Overhauled the Perl interface (perl/*):
9606 - ported BN stuff to OpenSSL's different BN library
9607 - made the perl/ source tree CVS-aware
9608 - renamed the package from SSLeay to OpenSSL (the files still contain
9609 their history because I've copied them in the repository)
9610 - removed obsolete files (the test scripts will be replaced
9611 by better Test::Harness variants in the future)
9612 [Ralf S. Engelschall]
9614 *) First cut for a very conservative source tree cleanup:
9615 1. merge various obsolete readme texts into doc/ssleay.txt
9616 where we collect the old documents and readme texts.
9617 2. remove the first part of files where I'm already sure that we no
9618 longer need them because of three reasons: either they are just temporary
9619 files which were left by Eric or they are preserved original files where
9620 I've verified that the diff is also available in the CVS via "cvs diff
9621 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9622 the crypto/md/ stuff).
9623 [Ralf S. Engelschall]
9625 *) More extension code. Incomplete support for subject and issuer alt
9626 name, issuer and authority key id. Change the i2v function parameters
9627 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9628 what that's for :-) Fix to ASN1 macro which messed up
9629 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9632 *) Preliminary support for ENUMERATED type. This is largely copied from the
9636 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9637 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9639 *) Make sure `make rehash' target really finds the `openssl' program.
9640 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9642 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9643 like to hear about it if this slows down other processors.
9646 *) Add CygWin32 platform information to Configure script.
9647 [Alan Batie <batie@aahz.jf.intel.com>]
9649 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9650 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9652 *) New program nseq to manipulate netscape certificate sequences
9655 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9659 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9660 but the BN code had some problems that would cause failures when
9661 doing certificate verification and some other functions.
9662 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9664 *) Add ASN1 and PEM code to support netscape certificate sequences.
9667 *) Add ASN1 and PEM code to support netscape certificate sequences.
9670 *) Add several PKIX and private extended key usage OIDs.
9673 *) Modify the 'ca' program to handle the new extension code. Modify
9674 openssl.cnf for new extension format, add comments.
9677 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9678 and add a sample to openssl.cnf so req -x509 now adds appropriate
9682 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9683 error code, add initial support to X509_print() and x509 application.
9686 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9687 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9688 stuff is currently isolated and isn't even compiled yet.
9691 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9692 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9693 Removed the versions check from X509 routines when loading extensions:
9694 this allows certain broken certificates that don't set the version
9695 properly to be processed.
9698 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9699 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9700 can still be regenerated with "make depend".
9703 *) Spelling mistake in C version of CAST-128.
9704 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9706 *) Changes to the error generation code. The perl script err-code.pl
9707 now reads in the old error codes and retains the old numbers, only
9708 adding new ones if necessary. It also only changes the .err files if new
9709 codes are added. The makefiles have been modified to only insert errors
9710 when needed (to avoid needlessly modifying header files). This is done
9711 by only inserting errors if the .err file is newer than the auto generated
9712 C file. To rebuild all the error codes from scratch (the old behaviour)
9713 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9714 or delete all the .err files.
9717 *) CAST-128 was incorrectly implemented for short keys. The C version has
9718 been fixed, but is untested. The assembler versions are also fixed, but
9719 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9720 to regenerate it if needed.
9721 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9722 Hagino <itojun@kame.net>]
9724 *) File was opened incorrectly in randfile.c.
9725 [Ulf Möller <ulf@fitug.de>]
9727 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9728 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9729 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9730 al: it's just almost always a UTCTime. Note this patch adds new error
9731 codes so do a "make errors" if there are problems.
9734 *) Correct Linux 1 recognition in config.
9735 [Ulf Möller <ulf@fitug.de>]
9737 *) Remove pointless MD5 hash when using DSA keys in ca.
9738 [Anonymous <nobody@replay.com>]
9740 *) Generate an error if given an empty string as a cert directory. Also
9741 generate an error if handed NULL (previously returned 0 to indicate an
9742 error, but didn't set one).
9743 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9745 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9748 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9749 parameters. This was causing a warning which killed off the Win32 compile.
9752 *) Remove C++ style comments from crypto/bn/bn_local.h.
9753 [Neil Costigan <neil.costigan@celocom.com>]
9755 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9756 based on a text string, looking up short and long names and finally
9757 "dot" format. The "dot" format stuff didn't work. Added new function
9758 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9759 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9760 OID is not part of the table.
9763 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9764 X509_LOOKUP_by_alias().
9767 *) Sort openssl functions by name.
9770 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9771 encryption from sample DSA keys (in case anyone is interested the password
9775 *) Make _all_ *_free functions accept a NULL pointer.
9776 [Frans Heymans <fheymans@isaserver.be>]
9778 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9780 [Anonymous <nobody@replay.com>]
9782 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9783 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9785 *) Don't blow it for numeric -newkey arguments to apps/req.
9786 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9788 *) Temp key "for export" tests were wrong in s3_srvr.c.
9789 [Anonymous <nobody@replay.com>]
9791 *) Add prototype for temp key callback functions
9792 SSL_CTX_set_tmp_{rsa,dh}_callback().
9795 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9796 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9799 *) X509_name_add_entry() freed the wrong thing after an error.
9800 [Arne Ansper <arne@ats.cyber.ee>]
9802 *) rsa_eay.c would attempt to free a NULL context.
9803 [Arne Ansper <arne@ats.cyber.ee>]
9805 *) BIO_s_socket() had a broken should_retry() on Windoze.
9806 [Arne Ansper <arne@ats.cyber.ee>]
9808 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9809 [Arne Ansper <arne@ats.cyber.ee>]
9811 *) Make sure the already existing X509_STORE->depth variable is initialized
9812 in X509_STORE_new(), but document the fact that this variable is still
9813 unused in the certificate verification process.
9814 [Ralf S. Engelschall]
9816 *) Fix the various library and apps files to free up pkeys obtained from
9817 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9820 *) Fix reference counting in X509_PUBKEY_get(). This makes
9821 demos/maurice/example2.c work, amongst others, probably.
9822 [Steve Henson and Ben Laurie]
9824 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9825 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9826 are no longer created. This way we have a single and consistent command
9827 line interface `openssl <command>', similar to `cvs <command>'.
9828 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9830 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9831 BIT STRING wrapper always have zero unused bits.
9834 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9837 *) Make the top-level INSTALL documentation easier to understand.
9840 *) Makefiles updated to exit if an error occurs in a sub-directory
9841 make (including if user presses ^C) [Paul Sutton]
9843 *) Make Montgomery context stuff explicit in RSA data structure.
9846 *) Fix build order of pem and err to allow for generated pem.h.
9849 *) Fix renumbering bug in X509_NAME_delete_entry().
9852 *) Enhanced the err-ins.pl script so it makes the error library number
9853 global and can add a library name. This is needed for external ASN1 and
9854 other error libraries.
9857 *) Fixed sk_insert which never worked properly.
9860 *) Fix ASN1 macros so they can handle indefinite length construted
9861 EXPLICIT tags. Some non standard certificates use these: they can now
9865 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9866 into a single doc/ssleay.txt bundle. This way the information is still
9867 preserved but no longer messes up this directory. Now it's new room for
9868 the new set of documenation files.
9869 [Ralf S. Engelschall]
9871 *) SETs were incorrectly DER encoded. This was a major pain, because they
9872 shared code with SEQUENCEs, which aren't coded the same. This means that
9873 almost everything to do with SETs or SEQUENCEs has either changed name or
9874 number of arguments.
9875 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9877 *) Fix test data to work with the above.
9880 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9881 was already fixed by Eric for 0.9.1 it seems.
9882 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9884 *) Autodetect FreeBSD3.
9887 *) Fix various bugs in Configure. This affects the following platforms:
9891 unixware-2.0-pentium
9895 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9896 before they are needed.
9899 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9903 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9905 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9906 changed SSLeay to OpenSSL in version strings.
9907 [Ralf S. Engelschall]
9909 *) Some fixups to the top-level documents.
9912 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9913 because the symlink to include/ was missing.
9914 [Ralf S. Engelschall]
9916 *) Incorporated the popular no-RSA/DSA-only patches
9917 which allow to compile a RSA-free SSLeay.
9918 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9920 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9921 when "ssleay" is still not found.
9922 [Ralf S. Engelschall]
9924 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9925 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9927 *) Updated the README file.
9928 [Ralf S. Engelschall]
9930 *) Added various .cvsignore files in the CVS repository subdirs
9931 to make a "cvs update" really silent.
9932 [Ralf S. Engelschall]
9934 *) Recompiled the error-definition header files and added
9935 missing symbols to the Win32 linker tables.
9936 [Ralf S. Engelschall]
9938 *) Cleaned up the top-level documents;
9939 o new files: CHANGES and LICENSE
9940 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9941 o merged COPYRIGHT into LICENSE
9942 o removed obsolete TODO file
9943 o renamed MICROSOFT to INSTALL.W32
9944 [Ralf S. Engelschall]
9946 *) Removed dummy files from the 0.9.1b source tree:
9947 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9948 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9949 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9950 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9951 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9952 [Ralf S. Engelschall]
9954 *) Added various platform portability fixes.
9957 *) The Genesis of the OpenSSL rpject:
9958 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9959 Young and Tim J. Hudson created while they were working for C2Net until
9961 [The OpenSSL Project]
9964 Changes between 0.9.0b and 0.9.1b [not released]
9966 *) Updated a few CA certificates under certs/
9969 *) Changed some BIGNUM api stuff.
9972 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9973 DGUX x86, Linux Alpha, etc.
9976 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9977 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9981 *) Add -strparse option to asn1pars program which parses nested
9983 [Dr Stephen Henson <shenson@bigfoot.com>]
9985 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9988 *) DSA fix for "ca" program.
9991 *) Added "-genkey" option to "dsaparam" program.
9994 *) Added RIPE MD160 (rmd160) message digest.
9997 *) Added -a (all) option to "ssleay version" command.
10000 *) Added PLATFORM define which is the id given to Configure.
10003 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10006 *) Extended the ASN.1 parser routines.
10009 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10012 *) Added a BN_CTX to the BN library.
10015 *) Fixed the weak key values in DES library
10018 *) Changed API in EVP library for cipher aliases.
10021 *) Added support for RC2/64bit cipher.
10024 *) Converted the lhash library to the crypto/mem.c functions.
10027 *) Added more recognized ASN.1 object ids.
10030 *) Added more RSA padding checks for SSL/TLS.
10033 *) Added BIO proxy/filter functionality.
10036 *) Added extra_certs to SSL_CTX which can be used
10037 send extra CA certificates to the client in the CA cert chain sending
10038 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10041 *) Now Fortezza is denied in the authentication phase because
10042 this is key exchange mechanism is not supported by SSLeay at all.
10045 *) Additional PKCS1 checks.
10048 *) Support the string "TLSv1" for all TLS v1 ciphers.
10051 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10052 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10055 *) Fixed a few memory leaks.
10058 *) Fixed various code and comment typos.
10061 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10062 bytes sent in the client random.
10063 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob