5 Changes between 1.0.1 and 1.0.2 [xx XXX xxxx]
7 *) New functions to retrieve certificate signature and signature
11 *) Support for distinct client and server supported signature algorithms.
14 *) Add certificate callback. If set this is called whenever a certificate
15 is required by client or server. An application can decide which
16 certificate chain to present based on arbitrary criteria: for example
17 supported signature algorithms. Add very simple example to s_server.
18 This fixes many of the problems and restrictions of the existing client
19 certificate callback: for example you can now clear an existing
20 certificate and specify the whole chain.
23 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
24 the certificate can be used for (if anything). Set valid_flags field
25 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
26 to have similar checks in it.
28 Add new "cert_flags" field to CERT structure and include a "strict mode".
29 This enforces some TLS certificate requirements (such as only permitting
30 certificate signature algorithms contained in the supported algorithms
31 extension) which some implementations ignore: this option should be used
32 with caution as it could cause interoperability issues.
35 *) Update and tidy signature algorithm extension processing. Work out
36 shared signature algorithms based on preferences and peer algorithms
37 and print them out in s_client and s_server. Abort handshake if no
38 shared signature algorithms.
41 *) Add new functions to allow customised supported signature algorithms
42 for SSL and SSL_CTX structures. Add options to s_client and s_server
46 *) New function SSL_certs_clear() to delete all references to certificates
47 from an SSL structure. Before this once a certificate had been added
48 it couldn't be removed.
51 *) Integrate hostname, email address and IP address checking with certificate
52 verification. New verify options supporting checking in opensl utility.
55 *) Fixes and wildcard matching support to hostname and email checking
56 functions. Add manual page.
57 [Florian Weimer (Red Hat Product Security Team)]
59 *) New functions to check a hostname email or IP address against a
60 certificate. Add options x509 utility to print results of checks against
65 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
67 *) Backport support for partial chain verification: if an intermediate
68 certificate is explicitly trusted (using -addtrust option to x509
69 utility for example) the verification is sucessful even if the chain
71 The OCSP checking fix depends on this backport.
72 [Steve Henson and Rob Stradling <rob.stradling@comodo.com>]
74 *) Add -trusted_first option which attempts to find certificates in the
75 trusted store even if an untrusted chain is also supplied.
78 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
79 platform support for Linux and Android.
82 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
83 the right response is stapled. Also change current certificate to
84 the certificate actually sent.
85 See http://rt.openssl.org/Ticket/Display.html?id=2836.
86 [Rob Stradling <rob.stradling@comodo.com>]
88 *) Support for linux-x32, ILP32 environment in x86_64 framework.
92 [Emilia Kasper, Adam Langley, Ben Laurie (Google)]
94 *) Experimental multi-implementation support for FIPS capable OpenSSL.
95 When in FIPS mode the approved implementations are used as normal,
96 when not in FIPS mode the internal unapproved versions are used instead.
97 This means that the FIPS capable OpenSSL isn't forced to use the
98 (often lower perfomance) FIPS implementations outside FIPS mode.
101 *) Transparently support X9.42 DH parameters when calling
102 PEM_read_bio_DHparameters. This means existing applications can handle
103 the new parameter format automatically.
106 *) Initial experimental support for X9.42 DH parameter format: mainly
107 to support use of 'q' parameter for RFC5114 parameters.
110 *) Add DH parameters from RFC5114 including test data to dhtest.
113 *) Support for automatic EC temporary key parameter selection. If enabled
114 the most preferred EC parameters are automatically used instead of
115 hardcoded fixed parameters. Now a server just has to call:
116 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
117 support ECDH and use the most appropriate parameters.
120 *) Enhance and tidy EC curve and point format TLS extension code. Use
121 static structures instead of allocation if default values are used.
122 New ctrls to set curves we wish to support and to retrieve shared curves.
123 Print out shared curves in s_server. New options to s_server and s_client
124 to set list of supported curves.
127 *) New ctrls to retrieve supported signature algorithms and
128 supported curve values as an array of NIDs. Extend openssl utility
129 to print out received values.
132 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
133 between NIDs and the more common NIST names such as "P-256". Enhance
134 ecparam utility and ECC method to recognise the NIST names for curves.
137 *) Enhance SSL/TLS certificate chain handling to support different
138 chains for each certificate instead of one chain in the parent SSL_CTX.
141 *) Support for fixed DH ciphersuite client authentication: where both
142 server and client use DH certificates with common parameters.
145 *) Support for fixed DH ciphersuites: those requiring DH server
149 Changes between 1.0.1c and 1.0.1d [xx XXX xxxx]
151 *) Make openssl verify return errors.
152 [Chris Palmer <palmer@google.com> and Ben Laurie]
154 *) Fix possible deadlock when decoding public keys.
157 *) Don't use TLS 1.0 record version number in initial client hello
161 Changes between 1.0.1b and 1.0.1c [10 May 2012]
163 *) Sanity check record length before skipping explicit IV in TLS
164 1.2, 1.1 and DTLS to avoid DoS attack.
166 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
167 fuzzing as a service testing platform.
171 *) Initialise tkeylen properly when encrypting CMS messages.
172 Thanks to Solar Designer of Openwall for reporting this issue.
175 *) In FIPS mode don't try to use composite ciphers as they are not
179 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
181 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
182 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
183 mean any application compiled against OpenSSL 1.0.0 headers setting
184 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
185 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
186 0x10000000L Any application which was previously compiled against
187 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
188 will need to be recompiled as a result. Letting be results in
189 inability to disable specifically TLS 1.1 and in client context,
190 in unlike event, limit maximum offered version to TLS 1.0 [see below].
193 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
194 disable just protocol X, but all protocols above X *if* there are
195 protocols *below* X still enabled. In more practical terms it means
196 that if application wants to disable TLS1.0 in favor of TLS1.1 and
197 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
198 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
202 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
204 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
205 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
206 in CRYPTO_realloc_clean.
208 Thanks to Tavis Ormandy, Google Security Team, for discovering this
209 issue and to Adam Langley <agl@chromium.org> for fixing it.
211 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
213 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
216 *) Workarounds for some broken servers that "hang" if a client hello
217 record length exceeds 255 bytes:
219 1. Do not use record version number > TLS 1.0 in initial client
220 hello: some (but not all) hanging servers will now work.
221 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
222 the number of ciphers sent in the client hello. This should be
223 set to an even number, such as 50, for example by passing:
224 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
225 Most broken servers should now work.
226 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
227 TLS 1.2 client support entirely.
230 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
233 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
235 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
236 STRING form instead of a DigestInfo.
239 *) The format used for MDC2 RSA signatures is inconsistent between EVP
240 and the RSA_sign/RSA_verify functions. This was made more apparent when
241 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
242 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
243 the correct format in RSA_verify so both forms transparently work.
246 *) Some servers which support TLS 1.0 can choke if we initially indicate
247 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
248 encrypted premaster secret. As a workaround use the maximum pemitted
249 client version in client hello, this should keep such servers happy
250 and still work with previous versions of OpenSSL.
253 *) Add support for TLS/DTLS heartbeats.
254 [Robin Seggelmann <seggelmann@fh-muenster.de>]
256 *) Add support for SCTP.
257 [Robin Seggelmann <seggelmann@fh-muenster.de>]
259 *) Improved PRNG seeding for VOS.
260 [Paul Green <Paul.Green@stratus.com>]
262 *) Extensive assembler packs updates, most notably:
264 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
265 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
266 - x86_64: bit-sliced AES implementation;
267 - ARM: NEON support, contemporary platforms optimizations;
268 - s390x: z196 support;
269 - *: GHASH and GF(2^m) multiplication implementations;
273 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
274 (removal of unnecessary code)
275 [Peter Sylvester <peter.sylvester@edelweb.fr>]
277 *) Add TLS key material exporter from RFC 5705.
280 *) Add DTLS-SRTP negotiation from RFC 5764.
283 *) Add Next Protocol Negotiation,
284 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
285 disabled with a no-npn flag to config or Configure. Code donated
287 [Adam Langley <agl@google.com> and Ben Laurie]
289 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
290 NIST-P256, NIST-P521, with constant-time single point multiplication on
291 typical inputs. Compiler support for the nonstandard type __uint128_t is
292 required to use this (present in gcc 4.4 and later, for 64-bit builds).
293 Code made available under Apache License version 2.0.
295 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
296 line to include this in your build of OpenSSL, and run "make depend" (or
297 "make update"). This enables the following EC_METHODs:
299 EC_GFp_nistp224_method()
300 EC_GFp_nistp256_method()
301 EC_GFp_nistp521_method()
303 EC_GROUP_new_by_curve_name() will automatically use these (while
304 EC_GROUP_new_curve_GFp() currently prefers the more flexible
306 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
308 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
309 all platforms. Move ssize_t definition from e_os.h to the public
310 header file e_os2.h as it now appears in public header file cms.h
313 *) New -sigopt option to the ca, req and x509 utilities. Additional
314 signature parameters can be passed using this option and in
318 *) Add RSA PSS signing function. This will generate and set the
319 appropriate AlgorithmIdentifiers for PSS based on those in the
320 corresponding EVP_MD_CTX structure. No application support yet.
323 *) Support for companion algorithm specific ASN1 signing routines.
324 New function ASN1_item_sign_ctx() signs a pre-initialised
325 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
326 the appropriate parameters.
329 *) Add new algorithm specific ASN1 verification initialisation function
330 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
331 handling will be the same no matter what EVP_PKEY_METHOD is used.
332 Add a PSS handler to support verification of PSS signatures: checked
333 against a number of sample certificates.
336 *) Add signature printing for PSS. Add PSS OIDs.
337 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
339 *) Add algorithm specific signature printing. An individual ASN1 method
340 can now print out signatures instead of the standard hex dump.
342 More complex signatures (e.g. PSS) can print out more meaningful
343 information. Include DSA version that prints out the signature
347 *) Password based recipient info support for CMS library: implementing
351 *) Split password based encryption into PBES2 and PBKDF2 functions. This
352 neatly separates the code into cipher and PBE sections and is required
353 for some algorithms that split PBES2 into separate pieces (such as
357 *) Session-handling fixes:
358 - Fix handling of connections that are resuming with a session ID,
359 but also support Session Tickets.
360 - Fix a bug that suppressed issuing of a new ticket if the client
361 presented a ticket with an expired session.
362 - Try to set the ticket lifetime hint to something reasonable.
363 - Make tickets shorter by excluding irrelevant information.
364 - On the client side, don't ignore renewed tickets.
365 [Adam Langley, Bodo Moeller (Google)]
367 *) Fix PSK session representation.
370 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
372 This work was sponsored by Intel.
375 *) Add GCM support to TLS library. Some custom code is needed to split
376 the IV between the fixed (from PRF) and explicit (from TLS record)
377 portions. This adds all GCM ciphersuites supported by RFC5288 and
378 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
379 add a special AESGCM string for GCM only.
382 *) Expand range of ctrls for AES GCM. Permit setting invocation
383 field on decrypt and retrieval of invocation field only on encrypt.
386 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
387 As required by RFC5289 these ciphersuites cannot be used if for
388 versions of TLS earlier than 1.2.
391 *) For FIPS capable OpenSSL interpret a NULL default public key method
392 as unset and return the appopriate default but do *not* set the default.
393 This means we can return the appopriate method in applications that
394 swicth between FIPS and non-FIPS modes.
397 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
398 ENGINE is used then we cannot handle that in the FIPS module so we
399 keep original code iff non-FIPS operations are allowed.
402 *) Add -attime option to openssl utilities.
403 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
405 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
408 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
409 FIPS EC methods unconditionally for now.
412 *) New build option no-ec2m to disable characteristic 2 code.
415 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
416 all cases can be covered as some introduce binary incompatibilities.
419 *) Redirect RSA operations to FIPS module including keygen,
420 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
423 *) Add similar low level API blocking to ciphers.
426 *) Low level digest APIs are not approved in FIPS mode: any attempt
427 to use these will cause a fatal error. Applications that *really* want
428 to use them can use the private_* version instead.
431 *) Redirect cipher operations to FIPS module for FIPS builds.
434 *) Redirect digest operations to FIPS module for FIPS builds.
437 *) Update build system to add "fips" flag which will link in fipscanister.o
438 for static and shared library builds embedding a signature if needed.
441 *) Output TLS supported curves in preference order instead of numerical
442 order. This is currently hardcoded for the highest order curves first.
443 This should be configurable so applications can judge speed vs strength.
446 *) Add TLS v1.2 server support for client authentication.
449 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
453 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
454 FIPS modules versions.
457 *) Add TLS v1.2 client side support for client authentication. Keep cache
458 of handshake records longer as we don't know the hash algorithm to use
459 until after the certificate request message is received.
462 *) Initial TLS v1.2 client support. Add a default signature algorithms
463 extension including all the algorithms we support. Parse new signature
464 format in client key exchange. Relax some ECC signing restrictions for
465 TLS v1.2 as indicated in RFC5246.
468 *) Add server support for TLS v1.2 signature algorithms extension. Switch
469 to new signature format when needed using client digest preference.
470 All server ciphersuites should now work correctly in TLS v1.2. No client
471 support yet and no support for client certificates.
474 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
475 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
476 ciphersuites. At present only RSA key exchange ciphersuites work with
477 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
478 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
479 and version checking.
482 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
483 with this defined it will not be affected by any changes to ssl internal
484 structures. Add several utility functions to allow openssl application
485 to work with OPENSSL_NO_SSL_INTERN defined.
489 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
491 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
494 *) Permit abbreviated handshakes when renegotiating using the function
495 SSL_renegotiate_abbreviated().
496 [Robin Seggelmann <seggelmann@fh-muenster.de>]
498 *) Add call to ENGINE_register_all_complete() to
499 ENGINE_load_builtin_engines(), so some implementations get used
500 automatically instead of needing explicit application support.
503 *) Add support for TLS key exporter as described in RFC5705.
504 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
506 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
507 a few changes are required:
509 Add SSL_OP_NO_TLSv1_1 flag.
511 Update version checking logic to handle version 1.1.
512 Add explicit IV handling (ported from DTLS code).
513 Add command line options to s_client/s_server.
516 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
518 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
519 in CMS and PKCS7 code. When RSA decryption fails use a random key for
520 content decryption and always return the same error. Note: this attack
521 needs on average 2^20 messages so it only affects automated senders. The
522 old behaviour can be reenabled in the CMS code by setting the
523 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
524 an MMA defence is not necessary.
525 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
526 this issue. (CVE-2012-0884)
529 *) Fix CVE-2011-4619: make sure we really are receiving a
530 client hello before rejecting multiple SGC restarts. Thanks to
531 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
534 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
536 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
537 Thanks to Antonio Martin, Enterprise Secure Access Research and
538 Development, Cisco Systems, Inc. for discovering this bug and
539 preparing a fix. (CVE-2012-0050)
542 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
544 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
545 of the Vaudenay padding oracle attack on CBC mode encryption
546 which enables an efficient plaintext recovery attack against
547 the OpenSSL implementation of DTLS. Their attack exploits timing
548 differences arising during decryption processing. A research
549 paper describing this attack can be found at:
550 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
551 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
552 Security Group at Royal Holloway, University of London
553 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
554 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
555 for preparing the fix. (CVE-2011-4108)
556 [Robin Seggelmann, Michael Tuexen]
558 *) Clear bytes used for block padding of SSL 3.0 records.
560 [Adam Langley (Google)]
562 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
563 Kadianakis <desnacked@gmail.com> for discovering this issue and
564 Adam Langley for preparing the fix. (CVE-2011-4619)
565 [Adam Langley (Google)]
567 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
568 [Andrey Kulikov <amdeich@gmail.com>]
570 *) Prevent malformed RFC3779 data triggering an assertion failure.
571 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
572 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
573 [Rob Austein <sra@hactrn.net>]
575 *) Improved PRNG seeding for VOS.
576 [Paul Green <Paul.Green@stratus.com>]
578 *) Fix ssl_ciph.c set-up race.
579 [Adam Langley (Google)]
581 *) Fix spurious failures in ecdsatest.c.
582 [Emilia Käsper (Google)]
584 *) Fix the BIO_f_buffer() implementation (which was mixing different
585 interpretations of the '..._len' fields).
586 [Adam Langley (Google)]
588 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
589 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
590 threads won't reuse the same blinding coefficients.
592 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
593 lock to call BN_BLINDING_invert_ex, and avoids one use of
594 BN_BLINDING_update for each BN_BLINDING structure (previously,
595 the last update always remained unused).
596 [Emilia Käsper (Google)]
598 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
599 [Bob Buckholz (Google)]
601 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
603 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
604 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
605 [Kaspar Brand <ossl@velox.ch>]
607 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
608 for multi-threaded use of ECDH. (CVE-2011-3210)
609 [Adam Langley (Google)]
611 *) Fix x509_name_ex_d2i memory leak on bad inputs.
614 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
615 signature public key algorithm by using OID xref utilities instead.
616 Before this you could only use some ECC ciphersuites with SHA1 only.
619 *) Add protection against ECDSA timing attacks as mentioned in the paper
620 by Billy Bob Brumley and Nicola Tuveri, see:
622 http://eprint.iacr.org/2011/232.pdf
624 [Billy Bob Brumley and Nicola Tuveri]
626 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
628 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
629 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
631 *) Fix bug in string printing code: if *any* escaping is enabled we must
632 escape the escape character (backslash) or the resulting string is
636 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
638 *) Disable code workaround for ancient and obsolete Netscape browsers
639 and servers: an attacker can use it in a ciphersuite downgrade attack.
640 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
643 *) Fixed J-PAKE implementation error, originally discovered by
644 Sebastien Martini, further info and confirmation from Stefan
645 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
648 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
650 *) Fix extension code to avoid race conditions which can result in a buffer
651 overrun vulnerability: resumed sessions must not be modified as they can
652 be shared by multiple threads. CVE-2010-3864
655 *) Fix WIN32 build system to correctly link an ENGINE directory into
659 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
661 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
663 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
665 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
667 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
668 context. The operation can be customised via the ctrl mechanism in
669 case ENGINEs want to include additional functionality.
672 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
675 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
676 output hashes compatible with older versions of OpenSSL.
677 [Willy Weisz <weisz@vcpc.univie.ac.at>]
679 *) Fix compression algorithm handling: if resuming a session use the
680 compression algorithm of the resumed session instead of determining
681 it from client hello again. Don't allow server to change algorithm.
684 *) Add load_crls() function to apps tidying load_certs() too. Add option
685 to verify utility to allow additional CRLs to be included.
688 *) Update OCSP request code to permit adding custom headers to the request:
689 some responders need this.
692 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
694 [Julia Lawall <julia@diku.dk>]
696 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
697 needlessly dereferenced structures, used obsolete functions and
698 didn't handle all updated verify codes correctly.
701 *) Disable MD2 in the default configuration.
704 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
705 indicate the initial BIO being pushed or popped. This makes it possible
706 to determine whether the BIO is the one explicitly called or as a result
707 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
708 it handles reference counts correctly and doesn't zero out the I/O bio
709 when it is not being explicitly popped. WARNING: applications which
710 included workarounds for the old buggy behaviour will need to be modified
711 or they could free up already freed BIOs.
714 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
715 renaming to all platforms (within the 0.9.8 branch, this was
716 done conditionally on Netware platforms to avoid a name clash).
717 [Guenter <lists@gknw.net>]
719 *) Add ECDHE and PSK support to DTLS.
720 [Michael Tuexen <tuexen@fh-muenster.de>]
722 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
726 *) Add "missing" function EVP_MD_flags() (without this the only way to
727 retrieve a digest flags is by accessing the structure directly. Update
728 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
729 or cipher is registered as in the "from" argument. Print out all
730 registered digests in the dgst usage message instead of manually
731 attempting to work them out.
734 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
735 this allows the use of compression and extensions. Change default cipher
736 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
737 by default unless an application cipher string requests it.
740 *) Alter match criteria in PKCS12_parse(). It used to try to use local
741 key ids to find matching certificates and keys but some PKCS#12 files
742 don't follow the (somewhat unwritten) rules and this strategy fails.
743 Now just gather all certificates together and the first private key
744 then look for the first certificate that matches the key.
747 *) Support use of registered digest and cipher names for dgst and cipher
748 commands instead of having to add each one as a special case. So now
755 openssl dgst -sha256 foo
757 and this works for ENGINE based algorithms too.
761 *) Update Gost ENGINE to support parameter files.
762 [Victor B. Wagner <vitus@cryptocom.ru>]
764 *) Support GeneralizedTime in ca utility.
765 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
767 *) Enhance the hash format used for certificate directory links. The new
768 form uses the canonical encoding (meaning equivalent names will work
769 even if they aren't identical) and uses SHA1 instead of MD5. This form
770 is incompatible with the older format and as a result c_rehash should
771 be used to rebuild symbolic links.
774 *) Make PKCS#8 the default write format for private keys, replacing the
775 traditional format. This form is standardised, more secure and doesn't
776 include an implicit MD5 dependency.
779 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
780 committed to OpenSSL should pass this lot as a minimum.
783 *) Add session ticket override functionality for use by EAP-FAST.
784 [Jouni Malinen <j@w1.fi>]
786 *) Modify HMAC functions to return a value. Since these can be implemented
787 in an ENGINE errors can occur.
790 *) Type-checked OBJ_bsearch_ex.
793 *) Type-checked OBJ_bsearch. Also some constification necessitated
794 by type-checking. Still to come: TXT_DB, bsearch(?),
795 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
799 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
800 seconds to a tm structure directly, instead of going through OS
801 specific date routines. This avoids any issues with OS routines such
802 as the year 2038 bug. New *_adj() functions for ASN1 time structures
803 and X509_time_adj_ex() to cover the extended range. The existing
804 X509_time_adj() is still usable and will no longer have any date issues.
807 *) Delta CRL support. New use deltas option which will attempt to locate
808 and search any appropriate delta CRLs available.
810 This work was sponsored by Google.
813 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
814 code and add additional score elements. Validate alternate CRL paths
815 as part of the CRL checking and indicate a new error "CRL path validation
816 error" in this case. Applications wanting additional details can use
817 the verify callback and check the new "parent" field. If this is not
818 NULL CRL path validation is taking place. Existing applications wont
819 see this because it requires extended CRL support which is off by
822 This work was sponsored by Google.
825 *) Support for freshest CRL extension.
827 This work was sponsored by Google.
830 *) Initial indirect CRL support. Currently only supported in the CRLs
831 passed directly and not via lookup. Process certificate issuer
832 CRL entry extension and lookup CRL entries by bother issuer name
833 and serial number. Check and process CRL issuer entry in IDP extension.
835 This work was sponsored by Google.
838 *) Add support for distinct certificate and CRL paths. The CRL issuer
839 certificate is validated separately in this case. Only enabled if
840 an extended CRL support flag is set: this flag will enable additional
841 CRL functionality in future.
843 This work was sponsored by Google.
846 *) Add support for policy mappings extension.
848 This work was sponsored by Google.
851 *) Fixes to pathlength constraint, self issued certificate handling,
852 policy processing to align with RFC3280 and PKITS tests.
854 This work was sponsored by Google.
857 *) Support for name constraints certificate extension. DN, email, DNS
858 and URI types are currently supported.
860 This work was sponsored by Google.
863 *) To cater for systems that provide a pointer-based thread ID rather
864 than numeric, deprecate the current numeric thread ID mechanism and
865 replace it with a structure and associated callback type. This
866 mechanism allows a numeric "hash" to be extracted from a thread ID in
867 either case, and on platforms where pointers are larger than 'long',
868 mixing is done to help ensure the numeric 'hash' is usable even if it
869 can't be guaranteed unique. The default mechanism is to use "&errno"
870 as a pointer-based thread ID to distinguish between threads.
872 Applications that want to provide their own thread IDs should now use
873 CRYPTO_THREADID_set_callback() to register a callback that will call
874 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
876 Note that ERR_remove_state() is now deprecated, because it is tied
877 to the assumption that thread IDs are numeric. ERR_remove_state(0)
878 to free the current thread's error state should be replaced by
879 ERR_remove_thread_state(NULL).
881 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
882 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
883 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
884 application was previously providing a numeric thread callback that
885 was inappropriate for distinguishing threads, then uniqueness might
886 have been obtained with &errno that happened immediately in the
887 intermediate development versions of OpenSSL; this is no longer the
888 case, the numeric thread callback will now override the automatic use
890 [Geoff Thorpe, with help from Bodo Moeller]
892 *) Initial support for different CRL issuing certificates. This covers a
893 simple case where the self issued certificates in the chain exist and
894 the real CRL issuer is higher in the existing chain.
896 This work was sponsored by Google.
899 *) Removed effectively defunct crypto/store from the build.
902 *) Revamp of STACK to provide stronger type-checking. Still to come:
903 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
904 ASN1_STRING, CONF_VALUE.
907 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
908 RAM on SSL connections. This option can save about 34k per idle SSL.
911 *) Revamp of LHASH to provide stronger type-checking. Still to come:
912 STACK, TXT_DB, bsearch, qsort.
915 *) Initial support for Cryptographic Message Syntax (aka CMS) based
916 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
917 support for data, signedData, compressedData, digestedData and
918 encryptedData, envelopedData types included. Scripts to check against
919 RFC4134 examples draft and interop and consistency checks of many
920 content types and variants.
923 *) Add options to enc utility to support use of zlib compression BIO.
926 *) Extend mk1mf to support importing of options and assembly language
927 files from Configure script, currently only included in VC-WIN32.
928 The assembly language rules can now optionally generate the source
929 files from the associated perl scripts.
932 *) Implement remaining functionality needed to support GOST ciphersuites.
933 Interop testing has been performed using CryptoPro implementations.
934 [Victor B. Wagner <vitus@cryptocom.ru>]
936 *) s390x assembler pack.
939 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
943 *) Implement Opaque PRF Input TLS extension as specified in
944 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
945 official specification yet and no extension type assignment by
946 IANA exists, this extension (for now) will have to be explicitly
947 enabled when building OpenSSL by providing the extension number
948 to use. For example, specify an option
950 -DTLSEXT_TYPE_opaque_prf_input=0x9527
952 to the "config" or "Configure" script to enable the extension,
953 assuming extension number 0x9527 (which is a completely arbitrary
954 and unofficial assignment based on the MD5 hash of the Internet
955 Draft). Note that by doing so, you potentially lose
956 interoperability with other TLS implementations since these might
957 be using the same extension number for other purposes.
959 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
960 opaque PRF input value to use in the handshake. This will create
961 an interal copy of the length-'len' string at 'src', and will
962 return non-zero for success.
964 To get more control and flexibility, provide a callback function
967 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
968 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
972 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
975 Callback function 'cb' will be called in handshakes, and is
976 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
977 Argument 'arg' is for application purposes (the value as given to
978 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
979 be provided to the callback function). The callback function
980 has to return non-zero to report success: usually 1 to use opaque
981 PRF input just if possible, or 2 to enforce use of the opaque PRF
982 input. In the latter case, the library will abort the handshake
983 if opaque PRF input is not successfully negotiated.
985 Arguments 'peerinput' and 'len' given to the callback function
986 will always be NULL and 0 in the case of a client. A server will
987 see the client's opaque PRF input through these variables if
988 available (NULL and 0 otherwise). Note that if the server
989 provides an opaque PRF input, the length must be the same as the
990 length of the client's opaque PRF input.
992 Note that the callback function will only be called when creating
993 a new session (session resumption can resume whatever was
994 previously negotiated), and will not be called in SSL 2.0
995 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
996 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
997 for applications that need to enforce opaque PRF input.
1001 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1004 [Victor B. Wagner <vitus@cryptocom.ru>]
1006 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1007 RFC4507bis. The encrypted ticket format is an encrypted encoded
1008 SSL_SESSION structure, that way new session features are automatically
1011 If a client application caches session in an SSL_SESSION structure
1012 support is transparent because tickets are now stored in the encoded
1015 The SSL_CTX structure automatically generates keys for ticket
1016 protection in servers so again support should be possible
1017 with no application modification.
1019 If a client or server wishes to disable RFC4507 support then the option
1020 SSL_OP_NO_TICKET can be set.
1022 Add a TLS extension debugging callback to allow the contents of any client
1023 or server extensions to be examined.
1025 This work was sponsored by Google.
1028 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1029 OpenSSL should now compile cleanly on gcc 4.2
1030 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1032 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1033 support including streaming MAC support: this is required for GOST
1034 ciphersuite support.
1035 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1037 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1038 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1039 to output in BER and PEM format.
1042 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1043 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1044 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1045 ENGINE support for HMAC keys which are unextractable. New -mac and
1046 -macopt options to dgst utility.
1049 *) New option -sigopt to dgst utility. Update dgst to use
1050 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1051 alternative signing paramaters such as X9.31 or PSS in the dgst
1055 *) Change ssl_cipher_apply_rule(), the internal function that does
1056 the work each time a ciphersuite string requests enabling
1057 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1058 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1059 the order of disabled ciphersuites such that those ciphersuites
1060 that most recently went from enabled to disabled not only stay
1061 in order with respect to each other, but also have higher priority
1062 than other disabled ciphersuites the next time ciphersuites are
1065 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1066 the same ciphersuites as with "HIGH" alone, but in a specific
1067 order where the PSK ciphersuites come first (since they are the
1068 most recently disabled ciphersuites when "HIGH" is parsed).
1070 Also, change ssl_create_cipher_list() (using this new
1071 funcionality) such that between otherwise identical
1072 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1076 *) Change ssl_create_cipher_list() so that it automatically
1077 arranges the ciphersuites in reasonable order before starting
1078 to process the rule string. Thus, the definition for "DEFAULT"
1079 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1080 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1081 This makes it much easier to arrive at a reasonable default order
1082 in applications for which anonymous ciphers are OK (meaning
1083 that you can't actually use DEFAULT).
1084 [Bodo Moeller; suggested by Victor Duchovni]
1086 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1087 processing) into multiple integers instead of setting
1088 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1089 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1090 (These masks as well as the individual bit definitions are hidden
1091 away into the non-exported interface ssl/ssl_locl.h, so this
1092 change to the definition of the SSL_CIPHER structure shouldn't
1093 affect applications.) This give us more bits for each of these
1094 categories, so there is no longer a need to coagulate AES128 and
1095 AES256 into a single algorithm bit, and to coagulate Camellia128
1096 and Camellia256 into a single algorithm bit, which has led to all
1099 Thus, among other things, the kludge introduced in 0.9.7m and
1100 0.9.8e for masking out AES256 independently of AES128 or masking
1101 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1103 With the change, we also introduce new ciphersuite aliases that
1104 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1108 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1109 Use the leftmost N bytes of the signature input if the input is
1110 larger than the prime q (with N being the size in bytes of q).
1113 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1114 it yet and it is largely untested.
1117 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1120 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1121 some compilers (gcc 4.2 and later) reject their use. Safestack is
1122 reimplemented. Update ASN1 to avoid use of legacy functions.
1125 *) Win32/64 targets are linked with Winsock2.
1128 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1129 to external functions. This can be used to increase CRL handling
1130 efficiency especially when CRLs are very large by (for example) storing
1131 the CRL revoked certificates in a database.
1134 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1135 new CRLs added to a directory can be used. New command line option
1136 -verify_return_error to s_client and s_server. This causes real errors
1137 to be returned by the verify callback instead of carrying on no matter
1138 what. This reflects the way a "real world" verify callback would behave.
1141 *) GOST engine, supporting several GOST algorithms and public key formats.
1142 Kindly donated by Cryptocom.
1145 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1146 partitioned by DP are handled but no indirect CRL or reason partitioning
1147 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1148 selected via a scoring technique which handles IDP and AKID in CRLs.
1151 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1152 will ultimately be used for all verify operations: this will remove the
1153 X509_STORE dependency on certificate verification and allow alternative
1154 lookup methods. X509_STORE based implementations of these two callbacks.
1157 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1158 Modify get_crl() to find a valid (unexpired) CRL if possible.
1161 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1162 this would be called X509_CRL_cmp() but that name is already used by
1163 a function that just compares CRL issuer names. Cache several CRL
1164 extensions in X509_CRL structure and cache CRLDP in X509.
1167 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1168 this maps equivalent X509_NAME structures into a consistent structure.
1169 Name comparison can then be performed rapidly using memcmp().
1172 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1176 *) Allow digests to supply their own micalg string for S/MIME type using
1177 the ctrl EVP_MD_CTRL_MICALG.
1180 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1181 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1182 ctrl. It can then customise the structure before and/or after signing
1186 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1187 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1188 to free up any added signature OIDs.
1191 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1192 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1193 digest and cipher tables. New options added to openssl utility:
1194 list-message-digest-algorithms and list-cipher-algorithms.
1197 *) Change the array representation of binary polynomials: the list
1198 of degrees of non-zero coefficients is now terminated with -1.
1199 Previously it was terminated with 0, which was also part of the
1200 value; thus, the array representation was not applicable to
1201 polynomials where t^0 has coefficient zero. This change makes
1202 the array representation useful in a more general context.
1205 *) Various modifications and fixes to SSL/TLS cipher string
1206 handling. For ECC, the code now distinguishes between fixed ECDH
1207 with RSA certificates on the one hand and with ECDSA certificates
1208 on the other hand, since these are separate ciphersuites. The
1209 unused code for Fortezza ciphersuites has been removed.
1211 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1212 (not "ECDHE"). For consistency with the code for DH
1213 certificates, use of ECDH certificates is now considered ECDH
1214 authentication, not RSA or ECDSA authentication (the latter is
1215 merely the CA's signing algorithm and not actively used in the
1218 The temporary ciphersuite alias "ECCdraft" is no longer
1219 available, and ECC ciphersuites are no longer excluded from "ALL"
1220 and "DEFAULT". The following aliases now exist for RFC 4492
1221 ciphersuites, most of these by analogy with the DH case:
1223 kECDHr - ECDH cert, signed with RSA
1224 kECDHe - ECDH cert, signed with ECDSA
1225 kECDH - ECDH cert (signed with either RSA or ECDSA)
1226 kEECDH - ephemeral ECDH
1227 ECDH - ECDH cert or ephemeral ECDH
1233 AECDH - anonymous ECDH
1234 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1238 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1239 Use correct micalg parameters depending on digest(s) in signed message.
1242 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1243 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1246 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1247 an engine to register a method. Add ENGINE lookups for methods and
1248 functional reference processing.
1251 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1252 EVP_{Sign,Verify}* which allow an application to customise the signature
1256 *) New -resign option to smime utility. This adds one or more signers
1257 to an existing PKCS#7 signedData structure. Also -md option to use an
1258 alternative message digest algorithm for signing.
1261 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1262 create PKCS7 structures containing multiple signers. Update smime
1263 application to support multiple signers.
1266 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1270 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1271 Reorganize PBE internals to lookup from a static table using NIDs,
1272 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1273 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1274 PRF which will be automatically used with PBES2.
1277 *) Replace the algorithm specific calls to generate keys in "req" with the
1281 *) Update PKCS#7 enveloped data routines to use new API. This is now
1282 supported by any public key method supporting the encrypt operation. A
1283 ctrl is added to allow the public key algorithm to examine or modify
1284 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1288 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1289 a default digest type to use. In most cases this will be SHA1 but some
1290 algorithms (such as GOST) need to specify an alternative digest. The
1291 return value indicates how strong the prefernce is 1 means optional and
1292 2 is mandatory (that is it is the only supported type). Modify
1293 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1294 use the default md. Update openssl utilities to use the default digest
1295 type for signing if it is not explicitly indicated.
1298 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1299 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1300 signing method from the key type. This effectively removes the link
1301 between digests and public key types.
1304 *) Add an OID cross reference table and utility functions. Its purpose is to
1305 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1306 rsaEncryption. This will allow some of the algorithm specific hackery
1307 needed to use the correct OID to be removed.
1310 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1311 structures for PKCS7_sign(). They are now set up by the relevant public
1315 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1318 *) Add support for key derivation (agreement) in the API, DH method and
1322 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1323 public and private key formats. As a side effect these add additional
1324 command line functionality not previously available: DSA signatures can be
1325 generated and verified using pkeyutl and DH key support and generation in
1330 [Oliver Tappe <zooey@hirschkaefer.de>]
1332 *) New make target "install_html_docs" installs HTML renditions of the
1334 [Oliver Tappe <zooey@hirschkaefer.de>]
1336 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1337 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1338 support key and parameter generation and add initial key generation
1339 functionality for RSA.
1342 *) Add functions for main EVP_PKEY_method operations. The undocumented
1343 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1344 EVP_PKEY_{encrypt,decrypt}_old.
1347 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1348 key API, doesn't do much yet.
1351 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1352 public key algorithms. New option to openssl utility:
1353 "list-public-key-algorithms" to print out info.
1356 *) Implement the Supported Elliptic Curves Extension for
1357 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1360 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1361 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1364 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1365 utilities such as rsa, dsa, dsaparam etc except they process any key
1369 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1370 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1371 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1375 *) Initial support for pluggable public key ASN1.
1376 De-spaghettify the public key ASN1 handling. Move public and private
1377 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1378 algorithm specific handling to a single module within the relevant
1379 algorithm directory. Add functions to allow (near) opaque processing
1380 of public and private key structures.
1383 *) Implement the Supported Point Formats Extension for
1384 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1387 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1388 for the psk identity [hint] and the psk callback functions to the
1389 SSL_SESSION, SSL and SSL_CTX structure.
1392 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1396 SSL_CTX_use_psk_identity_hint
1397 SSL_get_psk_identity_hint
1398 SSL_get_psk_identity
1399 SSL_use_psk_identity_hint
1401 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1403 *) Add RFC 3161 compliant time stamp request creation, response generation
1404 and response verification functionality.
1405 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1407 *) Add initial support for TLS extensions, specifically for the server_name
1408 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1409 have new members for a host name. The SSL data structure has an
1410 additional member SSL_CTX *initial_ctx so that new sessions can be
1411 stored in that context to allow for session resumption, even after the
1412 SSL has been switched to a new SSL_CTX in reaction to a client's
1413 server_name extension.
1415 New functions (subject to change):
1417 SSL_get_servername()
1418 SSL_get_servername_type()
1421 New CTRL codes and macros (subject to change):
1423 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1424 - SSL_CTX_set_tlsext_servername_callback()
1425 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1426 - SSL_CTX_set_tlsext_servername_arg()
1427 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1429 openssl s_client has a new '-servername ...' option.
1431 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1432 '-key2 ...', '-servername_fatal' (subject to change). This allows
1433 testing the HostName extension for a specific single host name ('-cert'
1434 and '-key' remain fallbacks for handshakes without HostName
1435 negotiation). If the unrecogninzed_name alert has to be sent, this by
1436 default is a warning; it becomes fatal with the '-servername_fatal'
1439 [Peter Sylvester, Remy Allais, Christophe Renou]
1441 *) Whirlpool hash implementation is added.
1444 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1445 bn(64,32). Because of instruction set limitations it doesn't have
1446 any negative impact on performance. This was done mostly in order
1447 to make it possible to share assembler modules, such as bn_mul_mont
1448 implementations, between 32- and 64-bit builds without hassle.
1451 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1452 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1456 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1457 dedicated Montgomery multiplication procedure, is introduced.
1458 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1459 "64-bit" performance on certain 32-bit targets.
1462 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1463 in SSL structures. New SSL ctrl to set maximum send fragment size.
1464 Save memory by seeting the I/O buffer sizes dynamically instead of
1465 using the maximum available value.
1468 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1469 in addition to the text details.
1472 *) Very, very preliminary EXPERIMENTAL support for printing of general
1473 ASN1 structures. This currently produces rather ugly output and doesn't
1474 handle several customised structures at all.
1477 *) Integrated support for PVK file format and some related formats such
1478 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1479 these in the 'rsa' and 'dsa' utilities.
1482 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1485 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1486 place for the (very old) "NETSCAPE" format certificates which are now
1487 handled using new ASN1 code equivalents.
1490 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1491 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1492 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1495 *) Modify CRL distribution points extension code to print out previously
1496 unsupported fields. Enhance extension setting code to allow setting of
1500 *) Add print and set support for Issuing Distribution Point CRL extension.
1503 *) Change 'Configure' script to enable Camellia by default.
1506 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1508 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1509 Thanks to Antonio Martin, Enterprise Secure Access Research and
1510 Development, Cisco Systems, Inc. for discovering this bug and
1511 preparing a fix. (CVE-2012-0050)
1514 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1516 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1517 of the Vaudenay padding oracle attack on CBC mode encryption
1518 which enables an efficient plaintext recovery attack against
1519 the OpenSSL implementation of DTLS. Their attack exploits timing
1520 differences arising during decryption processing. A research
1521 paper describing this attack can be found at:
1522 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1523 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1524 Security Group at Royal Holloway, University of London
1525 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1526 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1527 for preparing the fix. (CVE-2011-4108)
1528 [Robin Seggelmann, Michael Tuexen]
1530 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1531 [Ben Laurie, Kasper <ekasper@google.com>]
1533 *) Clear bytes used for block padding of SSL 3.0 records.
1535 [Adam Langley (Google)]
1537 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1538 Kadianakis <desnacked@gmail.com> for discovering this issue and
1539 Adam Langley for preparing the fix. (CVE-2011-4619)
1540 [Adam Langley (Google)]
1542 *) Prevent malformed RFC3779 data triggering an assertion failure.
1543 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1544 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1545 [Rob Austein <sra@hactrn.net>]
1547 *) Fix ssl_ciph.c set-up race.
1548 [Adam Langley (Google)]
1550 *) Fix spurious failures in ecdsatest.c.
1551 [Emilia Käsper (Google)]
1553 *) Fix the BIO_f_buffer() implementation (which was mixing different
1554 interpretations of the '..._len' fields).
1555 [Adam Langley (Google)]
1557 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1558 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1559 threads won't reuse the same blinding coefficients.
1561 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1562 lock to call BN_BLINDING_invert_ex, and avoids one use of
1563 BN_BLINDING_update for each BN_BLINDING structure (previously,
1564 the last update always remained unused).
1565 [Emilia Käsper (Google)]
1567 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1568 for multi-threaded use of ECDH.
1569 [Adam Langley (Google)]
1571 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1574 *) Add protection against ECDSA timing attacks as mentioned in the paper
1575 by Billy Bob Brumley and Nicola Tuveri, see:
1577 http://eprint.iacr.org/2011/232.pdf
1579 [Billy Bob Brumley and Nicola Tuveri]
1581 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1583 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1584 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1586 *) Fix bug in string printing code: if *any* escaping is enabled we must
1587 escape the escape character (backslash) or the resulting string is
1591 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1593 *) Disable code workaround for ancient and obsolete Netscape browsers
1594 and servers: an attacker can use it in a ciphersuite downgrade attack.
1595 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1598 *) Fixed J-PAKE implementation error, originally discovered by
1599 Sebastien Martini, further info and confirmation from Stefan
1600 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1603 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1605 *) Fix extension code to avoid race conditions which can result in a buffer
1606 overrun vulnerability: resumed sessions must not be modified as they can
1607 be shared by multiple threads. CVE-2010-3864
1610 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1613 *) Don't reencode certificate when calculating signature: cache and use
1614 the original encoding instead. This makes signature verification of
1615 some broken encodings work correctly.
1618 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1619 is also one of the inputs.
1620 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1622 *) Don't repeatedly append PBE algorithms to table if they already exist.
1623 Sort table on each new add. This effectively makes the table read only
1624 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1628 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1630 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1633 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1634 access or freeing data twice (CVE-2010-0742)
1635 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1637 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1638 common in certificates and some applications which only call
1639 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1643 Reduce copying into .apps and .test in makevms.com
1644 Don't try to use blank CA certificate in CA.com
1645 Allow use of C files from original directories in maketests.com
1646 [Steven M. Schweda" <sms@antinode.info>]
1648 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1650 *) When rejecting SSL/TLS records due to an incorrect version number, never
1651 update s->server with a new major version number. As of
1652 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1653 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1654 the previous behavior could result in a read attempt at NULL when
1655 receiving specific incorrect SSL/TLS records once record payload
1656 protection is active. (CVE-2010-0740)
1657 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1659 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1660 could be crashed if the relevant tables were not present (e.g. chrooted).
1661 [Tomas Hoger <thoger@redhat.com>]
1663 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1665 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1666 [Martin Olsson, Neel Mehta]
1668 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1669 accommodate for stack sorting, always a write lock!).
1672 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1673 excessive delays in the RAND_poll(): over a minute. As a workaround
1674 include a time check in the inner Heap32Next loop too.
1677 *) The code that handled flushing of data in SSL/TLS originally used the
1678 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1679 the problem outlined in PR#1949. The fix suggested there however can
1680 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1681 of Apache). So instead simplify the code to flush unconditionally.
1682 This should be fine since flushing with no data to flush is a no op.
1685 *) Handle TLS versions 2.0 and later properly and correctly use the
1686 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1687 off ancient servers have a habit of sticking around for a while...
1690 *) Modify compression code so it frees up structures without using the
1691 ex_data callbacks. This works around a problem where some applications
1692 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1693 restarting) then use compression (e.g. SSL with compression) later.
1694 This results in significant per-connection memory leaks and
1695 has caused some security issues including CVE-2008-1678 and
1699 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1700 change when encrypting or decrypting.
1703 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1704 connect and renegotiate with servers which do not support RI.
1705 Until RI is more widely deployed this option is enabled by default.
1708 *) Add "missing" ssl ctrls to clear options and mode.
1711 *) If client attempts to renegotiate and doesn't support RI respond with
1712 a no_renegotiation alert as required by RFC5746. Some renegotiating
1713 TLS clients will continue a connection gracefully when they receive
1714 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1715 waiting for a server hello which it will never receive. Now we treat a
1716 received no_renegotiation alert as a fatal error. This is because
1717 applications requesting a renegotiation might well expect it to succeed
1718 and would have no code in place to handle the server denying it so the
1719 only safe thing to do is to terminate the connection.
1722 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1723 peer supports secure renegotiation and 0 otherwise. Print out peer
1724 renegotiation support in s_client/s_server.
1727 *) Replace the highly broken and deprecated SPKAC certification method with
1728 the updated NID creation version. This should correctly handle UTF8.
1731 *) Implement RFC5746. Re-enable renegotiation but require the extension
1732 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1733 turns out to be a bad idea. It has been replaced by
1734 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1735 SSL_CTX_set_options(). This is really not recommended unless you
1736 know what you are doing.
1737 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1739 *) Fixes to stateless session resumption handling. Use initial_ctx when
1740 issuing and attempting to decrypt tickets in case it has changed during
1741 servername handling. Use a non-zero length session ID when attempting
1742 stateless session resumption: this makes it possible to determine if
1743 a resumption has occurred immediately after receiving server hello
1744 (several places in OpenSSL subtly assume this) instead of later in
1748 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1749 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1750 fixes for a few places where the return code is not checked
1752 [Julia Lawall <julia@diku.dk>]
1754 *) Add --strict-warnings option to Configure script to include devteam
1755 warnings in other configurations.
1758 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1759 makes it possible to install openssl libraries in locations which
1760 have names other than "lib", for example "/usr/lib64" which some
1762 [Steve Henson, based on patch from Jeremy Utley]
1764 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1765 X690 8.9.12 and can produce some misleading textual output of OIDs.
1766 [Steve Henson, reported by Dan Kaminsky]
1768 *) Delete MD2 from algorithm tables. This follows the recommendation in
1769 several standards that it is not used in new applications due to
1770 several cryptographic weaknesses. For binary compatibility reasons
1771 the MD2 API is still compiled in by default.
1774 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1778 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1779 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1781 [Guenter <lists@gknw.net>]
1783 *) Fix the server certificate chain building code to use X509_verify_cert(),
1784 it used to have an ad-hoc builder which was unable to cope with anything
1785 other than a simple chain.
1786 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1788 *) Don't check self signed certificate signatures in X509_verify_cert()
1789 by default (a flag can override this): it just wastes time without
1790 adding any security. As a useful side effect self signed root CAs
1791 with non-FIPS digests are now usable in FIPS mode.
1794 *) In dtls1_process_out_of_seq_message() the check if the current message
1795 is already buffered was missing. For every new message was memory
1796 allocated, allowing an attacker to perform an denial of service attack
1797 with sending out of seq handshake messages until there is no memory
1798 left. Additionally every future messege was buffered, even if the
1799 sequence number made no sense and would be part of another handshake.
1800 So only messages with sequence numbers less than 10 in advance will be
1801 buffered. (CVE-2009-1378)
1802 [Robin Seggelmann, discovered by Daniel Mentz]
1804 *) Records are buffered if they arrive with a future epoch to be
1805 processed after finishing the corresponding handshake. There is
1806 currently no limitation to this buffer allowing an attacker to perform
1807 a DOS attack with sending records with future epochs until there is no
1808 memory left. This patch adds the pqueue_size() function to detemine
1809 the size of a buffer and limits the record buffer to 100 entries.
1811 [Robin Seggelmann, discovered by Daniel Mentz]
1813 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1814 parent structure is freed. (CVE-2009-1379)
1817 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1818 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1821 [Ilya O. <vrghost@gmail.com>]
1823 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1825 *) Disable renegotiation completely - this fixes a severe security
1826 problem (CVE-2009-3555) at the cost of breaking all
1827 renegotiation. Renegotiation can be re-enabled by setting
1828 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1829 run-time. This is really not recommended unless you know what
1833 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1835 *) Don't set val to NULL when freeing up structures, it is freed up by
1836 underlying code. If sizeof(void *) > sizeof(long) this can result in
1837 zeroing past the valid field. (CVE-2009-0789)
1838 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1840 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1841 checked correctly. This would allow some invalid signed attributes to
1842 appear to verify correctly. (CVE-2009-0591)
1843 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1845 *) Reject UniversalString and BMPString types with invalid lengths. This
1846 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1847 a legal length. (CVE-2009-0590)
1850 *) Set S/MIME signing as the default purpose rather than setting it
1851 unconditionally. This allows applications to override it at the store
1855 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1856 to handle some structures.
1859 *) Improve efficiency of mem_gets: don't search whole buffer each time
1861 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1863 *) New -hex option for openssl rand.
1866 *) Print out UTF8String and NumericString when parsing ASN1.
1869 *) Support NumericString type for name components.
1872 *) Allow CC in the environment to override the automatically chosen
1873 compiler. Note that nothing is done to ensure flags work with the
1877 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1879 *) Properly check EVP_VerifyFinal() and similar return values
1881 [Ben Laurie, Bodo Moeller, Google Security Team]
1883 *) Enable TLS extensions by default.
1886 *) Allow the CHIL engine to be loaded, whether the application is
1887 multithreaded or not. (This does not release the developer from the
1888 obligation to set up the dynamic locking callbacks.)
1889 [Sander Temme <sander@temme.net>]
1891 *) Use correct exit code if there is an error in dgst command.
1892 [Steve Henson; problem pointed out by Roland Dirlewanger]
1894 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1895 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1898 *) Add experimental JPAKE support, including demo authentication in
1899 s_client and s_server.
1902 *) Set the comparison function in v3_addr_canonize().
1903 [Rob Austein <sra@hactrn.net>]
1905 *) Add support for XMPP STARTTLS in s_client.
1906 [Philip Paeps <philip@freebsd.org>]
1908 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1909 to ensure that even with this option, only ciphersuites in the
1910 server's preference list will be accepted. (Note that the option
1911 applies only when resuming a session, so the earlier behavior was
1912 just about the algorithm choice for symmetric cryptography.)
1915 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1917 *) Fix NULL pointer dereference if a DTLS server received
1918 ChangeCipherSpec as first record (CVE-2009-1386).
1921 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1922 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1925 *) The fix in 0.9.8c that supposedly got rid of unsafe
1926 double-checked locking was incomplete for RSA blinding,
1927 addressing just one layer of what turns out to have been
1928 doubly unsafe triple-checked locking.
1930 So now fix this for real by retiring the MONT_HELPER macro
1931 in crypto/rsa/rsa_eay.c.
1933 [Bodo Moeller; problem pointed out by Marius Schilder]
1935 *) Various precautionary measures:
1937 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1939 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1940 (NB: This would require knowledge of the secret session ticket key
1941 to exploit, in which case you'd be SOL either way.)
1943 - Change bn_nist.c so that it will properly handle input BIGNUMs
1944 outside the expected range.
1946 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1949 [Neel Mehta, Bodo Moeller]
1951 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1952 the load fails. Useful for distros.
1953 [Ben Laurie and the FreeBSD team]
1955 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1958 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1961 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1963 This work was sponsored by Logica.
1966 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1967 keystores. Support for SSL/TLS client authentication too.
1968 Not compiled unless enable-capieng specified to Configure.
1970 This work was sponsored by Logica.
1973 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1974 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1975 attribute creation routines such as certifcate requests and PKCS#12
1979 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1981 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1982 handshake which could lead to a cilent crash as found using the
1983 Codenomicon TLS test suite (CVE-2008-1672)
1984 [Steve Henson, Mark Cox]
1986 *) Fix double free in TLS server name extensions which could lead to
1987 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1990 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1992 Clear the error queue to ensure that error entries left from
1993 older function calls do not interfere with the correct operation.
1994 [Lutz Jaenicke, Erik de Castro Lopo]
1996 *) Remove root CA certificates of commercial CAs:
1998 The OpenSSL project does not recommend any specific CA and does not
1999 have any policy with respect to including or excluding any CA.
2000 Therefore it does not make any sense to ship an arbitrary selection
2001 of root CA certificates with the OpenSSL software.
2004 *) RSA OAEP patches to fix two separate invalid memory reads.
2005 The first one involves inputs when 'lzero' is greater than
2006 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2007 before the beginning of from). The second one involves inputs where
2008 the 'db' section contains nothing but zeroes (there is a one-byte
2009 invalid read after the end of 'db').
2010 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2012 *) Partial backport from 0.9.9-dev:
2014 Introduce bn_mul_mont (dedicated Montgomery multiplication
2015 procedure) as a candidate for BIGNUM assembler implementation.
2016 While 0.9.9-dev uses assembler for various architectures, only
2017 x86_64 is available by default here in the 0.9.8 branch, and
2018 32-bit x86 is available through a compile-time setting.
2020 To try the 32-bit x86 assembler implementation, use Configure
2021 option "enable-montasm" (which exists only for this backport).
2023 As "enable-montasm" for 32-bit x86 disclaims code stability
2024 anyway, in this constellation we activate additional code
2025 backported from 0.9.9-dev for further performance improvements,
2026 namely BN_from_montgomery_word. (To enable this otherwise,
2027 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2029 [Andy Polyakov (backport partially by Bodo Moeller)]
2031 *) Add TLS session ticket callback. This allows an application to set
2032 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2033 values. This is useful for key rollover for example where several key
2034 sets may exist with different names.
2037 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2038 This was broken until now in 0.9.8 releases, such that the only way
2039 a registered ENGINE could be used (assuming it initialises
2040 successfully on the host) was to explicitly set it as the default
2041 for the relevant algorithms. This is in contradiction with 0.9.7
2042 behaviour and the documentation. With this fix, when an ENGINE is
2043 registered into a given algorithm's table of implementations, the
2044 'uptodate' flag is reset so that auto-discovery will be used next
2045 time a new context for that algorithm attempts to select an
2047 [Ian Lister (tweaked by Geoff Thorpe)]
2049 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2050 implemention in the following ways:
2052 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2055 Lack of BER streaming support means one pass streaming processing is
2056 only supported if data is detached: setting the streaming flag is
2057 ignored for embedded content.
2059 CMS support is disabled by default and must be explicitly enabled
2060 with the enable-cms configuration option.
2063 *) Update the GMP engine glue to do direct copies between BIGNUM and
2064 mpz_t when openssl and GMP use the same limb size. Otherwise the
2065 existing "conversion via a text string export" trick is still used.
2066 [Paul Sheer <paulsheer@gmail.com>]
2068 *) Zlib compression BIO. This is a filter BIO which compressed and
2069 uncompresses any data passed through it.
2072 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2073 RFC3394 compatible AES key wrapping.
2076 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2077 sets string data without copying. X509_ALGOR_set0() and
2078 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2079 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2080 from an X509_ATTRIBUTE structure optionally checking it occurs only
2081 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2085 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2086 to get the expected BN_FLG_CONSTTIME behavior.
2087 [Bodo Moeller (Google)]
2091 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2092 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2093 - added some more tests to do_tests.pl
2094 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2095 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2096 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2097 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2098 - various changes to netware.pl to enable gcc-cross builds on Win32
2100 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2101 - various changes to fix missing prototype warnings
2102 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2103 - added AES, WHIRLPOOL and CPUID assembler code to build files
2104 - added missing AES assembler make rules to mk1mf.pl
2105 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2106 [Guenter Knauf <eflash@gmx.net>]
2108 *) Implement certificate status request TLS extension defined in RFC3546.
2109 A client can set the appropriate parameters and receive the encoded
2110 OCSP response via a callback. A server can query the supplied parameters
2111 and set the encoded OCSP response in the callback. Add simplified examples
2112 to s_client and s_server.
2115 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2117 *) Fix various bugs:
2118 + Binary incompatibility of ssl_ctx_st structure
2119 + DTLS interoperation with non-compliant servers
2120 + Don't call get_session_cb() without proposed session
2121 + Fix ia64 assembler code
2122 [Andy Polyakov, Steve Henson]
2124 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2126 *) DTLS Handshake overhaul. There were longstanding issues with
2127 OpenSSL DTLS implementation, which were making it impossible for
2128 RFC 4347 compliant client to communicate with OpenSSL server.
2129 Unfortunately just fixing these incompatibilities would "cut off"
2130 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2131 server keeps tolerating non RFC compliant syntax. The opposite is
2132 not true, 0.9.8f client can not communicate with earlier server.
2133 This update even addresses CVE-2007-4995.
2136 *) Changes to avoid need for function casts in OpenSSL: some compilers
2137 (gcc 4.2 and later) reject their use.
2138 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2141 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2142 RFC4507bis. The encrypted ticket format is an encrypted encoded
2143 SSL_SESSION structure, that way new session features are automatically
2146 If a client application caches session in an SSL_SESSION structure
2147 support is transparent because tickets are now stored in the encoded
2150 The SSL_CTX structure automatically generates keys for ticket
2151 protection in servers so again support should be possible
2152 with no application modification.
2154 If a client or server wishes to disable RFC4507 support then the option
2155 SSL_OP_NO_TICKET can be set.
2157 Add a TLS extension debugging callback to allow the contents of any client
2158 or server extensions to be examined.
2160 This work was sponsored by Google.
2163 *) Add initial support for TLS extensions, specifically for the server_name
2164 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2165 have new members for a host name. The SSL data structure has an
2166 additional member SSL_CTX *initial_ctx so that new sessions can be
2167 stored in that context to allow for session resumption, even after the
2168 SSL has been switched to a new SSL_CTX in reaction to a client's
2169 server_name extension.
2171 New functions (subject to change):
2173 SSL_get_servername()
2174 SSL_get_servername_type()
2177 New CTRL codes and macros (subject to change):
2179 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2180 - SSL_CTX_set_tlsext_servername_callback()
2181 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2182 - SSL_CTX_set_tlsext_servername_arg()
2183 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2185 openssl s_client has a new '-servername ...' option.
2187 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2188 '-key2 ...', '-servername_fatal' (subject to change). This allows
2189 testing the HostName extension for a specific single host name ('-cert'
2190 and '-key' remain fallbacks for handshakes without HostName
2191 negotiation). If the unrecogninzed_name alert has to be sent, this by
2192 default is a warning; it becomes fatal with the '-servername_fatal'
2195 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2197 *) Add AES and SSE2 assembly language support to VC++ build.
2200 *) Mitigate attack on final subtraction in Montgomery reduction.
2203 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2204 (which previously caused an internal error).
2207 *) Squeeze another 10% out of IGE mode when in != out.
2210 *) AES IGE mode speedup.
2211 [Dean Gaudet (Google)]
2213 *) Add the Korean symmetric 128-bit cipher SEED (see
2214 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2215 add SEED ciphersuites from RFC 4162:
2217 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2218 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2219 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2220 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2222 To minimize changes between patchlevels in the OpenSSL 0.9.8
2223 series, SEED remains excluded from compilation unless OpenSSL
2224 is configured with 'enable-seed'.
2225 [KISA, Bodo Moeller]
2227 *) Mitigate branch prediction attacks, which can be practical if a
2228 single processor is shared, allowing a spy process to extract
2229 information. For detailed background information, see
2230 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2231 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2232 and Necessary Software Countermeasures"). The core of the change
2233 are new versions BN_div_no_branch() and
2234 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2235 respectively, which are slower, but avoid the security-relevant
2236 conditional branches. These are automatically called by BN_div()
2237 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2238 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2239 remove a conditional branch.
2241 BN_FLG_CONSTTIME is the new name for the previous
2242 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2243 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2244 in the exponent causes BN_mod_exp_mont() to use the alternative
2245 implementation in BN_mod_exp_mont_consttime().) The old name
2246 remains as a deprecated alias.
2248 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2249 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2250 constant-time implementations for more than just exponentiation.
2251 Here too the old name is kept as a deprecated alias.
2253 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2254 the BN_BLINDING structure gets an independent copy of the
2255 modulus. This means that the previous "BIGNUM *m" argument to
2256 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2257 essentially becomes "const BIGNUM *m", although we can't actually
2258 change this in the header file before 0.9.9. It allows
2259 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2260 enable BN_FLG_CONSTTIME.
2262 [Matthew D Wood (Intel Corp)]
2264 *) In the SSL/TLS server implementation, be strict about session ID
2265 context matching (which matters if an application uses a single
2266 external cache for different purposes). Previously,
2267 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2268 set. This did ensure strict client verification, but meant that,
2269 with applications using a single external cache for quite
2270 different requirements, clients could circumvent ciphersuite
2271 restrictions for a given session ID context by starting a session
2272 in a different context.
2275 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2276 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2277 authentication-only ciphersuites.
2280 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2281 not complete and could lead to a possible single byte overflow
2282 (CVE-2007-5135) [Ben Laurie]
2284 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2286 *) Since AES128 and AES256 (and similarly Camellia128 and
2287 Camellia256) share a single mask bit in the logic of
2288 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2289 kludge to work properly if AES128 is available and AES256 isn't
2290 (or if Camellia128 is available and Camellia256 isn't).
2293 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2294 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2295 When a point or a seed is encoded in a BIT STRING, we need to
2296 prevent the removal of trailing zero bits to get the proper DER
2297 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2298 of a NamedBitList, for which trailing 0 bits need to be removed.)
2301 *) Have SSL/TLS server implementation tolerate "mismatched" record
2302 protocol version while receiving ClientHello even if the
2303 ClientHello is fragmented. (The server can't insist on the
2304 particular protocol version it has chosen before the ServerHello
2305 message has informed the client about his choice.)
2308 *) Add RFC 3779 support.
2309 [Rob Austein for ARIN, Ben Laurie]
2311 *) Load error codes if they are not already present instead of using a
2312 static variable. This allows them to be cleanly unloaded and reloaded.
2313 Improve header file function name parsing.
2316 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2317 or CAPABILITY handshake as required by RFCs.
2320 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2322 *) Introduce limits to prevent malicious keys being able to
2323 cause a denial of service. (CVE-2006-2940)
2324 [Steve Henson, Bodo Moeller]
2326 *) Fix ASN.1 parsing of certain invalid structures that can result
2327 in a denial of service. (CVE-2006-2937) [Steve Henson]
2329 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2330 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2332 *) Fix SSL client code which could crash if connecting to a
2333 malicious SSLv2 server. (CVE-2006-4343)
2334 [Tavis Ormandy and Will Drewry, Google Security Team]
2336 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2337 match only those. Before that, "AES256-SHA" would be interpreted
2338 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2339 the same strength classification in 0.9.7h) as we currently only
2340 have a single AES bit in the ciphersuite description bitmap.
2341 That change, however, also applied to ciphersuite strings such as
2342 "RC4-MD5" that intentionally matched multiple ciphersuites --
2343 namely, SSL 2.0 ciphersuites in addition to the more common ones
2344 from SSL 3.0/TLS 1.0.
2346 So we change the selection algorithm again: Naming an explicit
2347 ciphersuite selects this one ciphersuite, and any other similar
2348 ciphersuite (same bitmap) from *other* protocol versions.
2349 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2350 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2352 Since SSL 2.0 does not have any ciphersuites for which the
2353 128/256 bit distinction would be relevant, this works for now.
2354 The proper fix will be to use different bits for AES128 and
2355 AES256, which would have avoided the problems from the beginning;
2356 however, bits are scarce, so we can only do this in a new release
2357 (not just a patchlevel) when we can change the SSL_CIPHER
2358 definition to split the single 'unsigned long mask' bitmap into
2359 multiple values to extend the available space.
2363 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2365 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2366 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2368 *) Add AES IGE and biIGE modes.
2371 *) Change the Unix randomness entropy gathering to use poll() when
2372 possible instead of select(), since the latter has some
2373 undesirable limitations.
2374 [Darryl Miles via Richard Levitte and Bodo Moeller]
2376 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2377 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2378 cannot be implicitly activated as part of, e.g., the "AES" alias.
2379 However, please upgrade to OpenSSL 0.9.9[-dev] for
2380 non-experimental use of the ECC ciphersuites to get TLS extension
2381 support, which is required for curve and point format negotiation
2382 to avoid potential handshake problems.
2385 *) Disable rogue ciphersuites:
2387 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2388 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2389 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2391 The latter two were purportedly from
2392 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2395 Also deactivate the remaining ciphersuites from
2396 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2397 unofficial, and the ID has long expired.
2400 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2401 dual-core machines) and other potential thread-safety issues.
2404 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2405 versions), which is now available for royalty-free use
2406 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2407 Also, add Camellia TLS ciphersuites from RFC 4132.
2409 To minimize changes between patchlevels in the OpenSSL 0.9.8
2410 series, Camellia remains excluded from compilation unless OpenSSL
2411 is configured with 'enable-camellia'.
2414 *) Disable the padding bug check when compression is in use. The padding
2415 bug check assumes the first packet is of even length, this is not
2416 necessarily true if compresssion is enabled and can result in false
2417 positives causing handshake failure. The actual bug test is ancient
2418 code so it is hoped that implementations will either have fixed it by
2419 now or any which still have the bug do not support compression.
2422 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2424 *) When applying a cipher rule check to see if string match is an explicit
2425 cipher suite and only match that one cipher suite if it is.
2428 *) Link in manifests for VC++ if needed.
2429 [Austin Ziegler <halostatue@gmail.com>]
2431 *) Update support for ECC-based TLS ciphersuites according to
2432 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2433 TLS extensions, which are supported starting with the 0.9.9
2434 branch, not in the OpenSSL 0.9.8 branch).
2437 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2438 opaque EVP_CIPHER_CTX handling.
2441 *) Fixes and enhancements to zlib compression code. We now only use
2442 "zlib1.dll" and use the default __cdecl calling convention on Win32
2443 to conform with the standards mentioned here:
2444 http://www.zlib.net/DLL_FAQ.txt
2445 Static zlib linking now works on Windows and the new --with-zlib-include
2446 --with-zlib-lib options to Configure can be used to supply the location
2447 of the headers and library. Gracefully handle case where zlib library
2451 *) Several fixes and enhancements to the OID generation code. The old code
2452 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2453 handle numbers larger than ULONG_MAX, truncated printing and had a
2454 non standard OBJ_obj2txt() behaviour.
2457 *) Add support for building of engines under engine/ as shared libraries
2458 under VC++ build system.
2461 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2462 Hopefully, we will not see any false combination of paths any more.
2465 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2467 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2468 (part of SSL_OP_ALL). This option used to disable the
2469 countermeasure against man-in-the-middle protocol-version
2470 rollback in the SSL 2.0 server implementation, which is a bad
2471 idea. (CVE-2005-2969)
2473 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2474 for Information Security, National Institute of Advanced Industrial
2475 Science and Technology [AIST], Japan)]
2477 *) Add two function to clear and return the verify parameter flags.
2480 *) Keep cipherlists sorted in the source instead of sorting them at
2481 runtime, thus removing the need for a lock.
2484 *) Avoid some small subgroup attacks in Diffie-Hellman.
2485 [Nick Mathewson and Ben Laurie]
2487 *) Add functions for well-known primes.
2490 *) Extended Windows CE support.
2491 [Satoshi Nakamura and Andy Polyakov]
2493 *) Initialize SSL_METHOD structures at compile time instead of during
2494 runtime, thus removing the need for a lock.
2497 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2498 attempting to decrypt each encrypted key in turn. Add support to
2502 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2504 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2507 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2510 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2511 key into the same file any more.
2514 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2517 *) Add -utf8 command line and config file option to 'ca'.
2518 [Stefan <stf@udoma.org]
2520 *) Removed the macro des_crypt(), as it seems to conflict with some
2521 libraries. Use DES_crypt().
2524 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2525 involves renaming the source and generated shared-libs for
2526 both. The engines will accept the corrected or legacy ids
2527 ('ncipher' and '4758_cca' respectively) when binding. NB,
2528 this only applies when building 'shared'.
2529 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2531 *) Add attribute functions to EVP_PKEY structure. Modify
2532 PKCS12_create() to recognize a CSP name attribute and
2533 use it. Make -CSP option work again in pkcs12 utility.
2536 *) Add new functionality to the bn blinding code:
2537 - automatic re-creation of the BN_BLINDING parameters after
2538 a fixed number of uses (currently 32)
2539 - add new function for parameter creation
2540 - introduce flags to control the update behaviour of the
2541 BN_BLINDING parameters
2542 - hide BN_BLINDING structure
2543 Add a second BN_BLINDING slot to the RSA structure to improve
2544 performance when a single RSA object is shared among several
2548 *) Add support for DTLS.
2549 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2551 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2552 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2555 *) Remove buggy and incompletet DH cert support from
2556 ssl/ssl_rsa.c and ssl/s3_both.c
2559 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2560 the apps/openssl applications.
2563 *) Compile clean with "-Wall -Wmissing-prototypes
2564 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2565 DEBUG_SAFESTACK must also be set.
2568 *) Change ./Configure so that certain algorithms can be disabled by default.
2569 The new counterpiece to "no-xxx" is "enable-xxx".
2571 The patented RC5 and MDC2 algorithms will now be disabled unless
2572 "enable-rc5" and "enable-mdc2", respectively, are specified.
2574 (IDEA remains enabled despite being patented. This is because IDEA
2575 is frequently required for interoperability, and there is no license
2576 fee for non-commercial use. As before, "no-idea" can be used to
2577 avoid this algorithm.)
2581 *) Add processing of proxy certificates (see RFC 3820). This work was
2582 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2583 EGEE (Enabling Grids for E-science in Europe).
2586 *) RC4 performance overhaul on modern architectures/implementations, such
2587 as Intel P4, IA-64 and AMD64.
2590 *) New utility extract-section.pl. This can be used specify an alternative
2591 section number in a pod file instead of having to treat each file as
2592 a separate case in Makefile. This can be done by adding two lines to the
2595 =for comment openssl_section:XXX
2597 The blank line is mandatory.
2601 *) New arguments -certform, -keyform and -pass for s_client and s_server
2602 to allow alternative format key and certificate files and passphrase
2606 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2607 update associated structures and add various utility functions.
2609 Add new policy related verify parameters, include policy checking in
2610 standard verify code. Enhance 'smime' application with extra parameters
2611 to support policy checking and print out.
2614 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2615 Nehemiah processors. These extensions support AES encryption in hardware
2616 as well as RNG (though RNG support is currently disabled).
2617 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2619 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2622 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2623 [Andy Polyakov and a number of other people]
2625 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2626 implementation contributed by IBM.
2627 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2629 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2630 exponent rather than 'unsigned long'. There is a corresponding change to
2631 the new 'rsa_keygen' element of the RSA_METHOD structure.
2632 [Jelte Jansen, Geoff Thorpe]
2634 *) Functionality for creating the initial serial number file is now
2635 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2637 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2638 number file to 1, which is bound to cause problems. To avoid
2639 the problems while respecting compatibility between different 0.9.7
2640 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2641 CA.pl for serial number initialization. With the new release 0.9.8,
2642 we can fix the problem directly in the 'ca' utility.)
2645 *) Reduced header interdepencies by declaring more opaque objects in
2646 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2647 give fewer recursive includes, which could break lazy source code - so
2648 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2649 developers should define this symbol when building and using openssl to
2650 ensure they track the recommended behaviour, interfaces, [etc], but
2651 backwards-compatible behaviour prevails when this isn't defined.
2654 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2657 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2658 This will generate a random key of the appropriate length based on the
2659 cipher context. The EVP_CIPHER can provide its own random key generation
2660 routine to support keys of a specific form. This is used in the des and
2661 3des routines to generate a key of the correct parity. Update S/MIME
2662 code to use new functions and hence generate correct parity DES keys.
2663 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2664 valid (weak or incorrect parity).
2667 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2668 as looking them up. This is useful when the verified structure may contain
2669 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2670 present unless the new PKCS7_NO_CRL flag is asserted.
2673 *) Extend ASN1 oid configuration module. It now additionally accepts the
2676 shortName = some long name, 1.2.3.4
2679 *) Reimplemented the BN_CTX implementation. There is now no more static
2680 limitation on the number of variables it can handle nor the depth of the
2681 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2682 information can now expand as required, and rather than having a single
2683 static array of bignums, BN_CTX now uses a linked-list of such arrays
2684 allowing it to expand on demand whilst maintaining the usefulness of
2685 BN_CTX's "bundling".
2688 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2689 to allow all RSA operations to function using a single BN_CTX.
2692 *) Preliminary support for certificate policy evaluation and checking. This
2693 is initially intended to pass the tests outlined in "Conformance Testing
2694 of Relying Party Client Certificate Path Processing Logic" v1.07.
2697 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2698 remained unused and not that useful. A variety of other little bignum
2699 tweaks and fixes have also been made continuing on from the audit (see
2703 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2704 associated ASN1, EVP and SSL functions and old ASN1 macros.
2707 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2708 and this should never fail. So the return value from the use of
2709 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2710 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2713 *) BN_CTX_get() should return zero-valued bignums, providing the same
2714 initialised value as BN_new().
2715 [Geoff Thorpe, suggested by Ulf Möller]
2717 *) Support for inhibitAnyPolicy certificate extension.
2720 *) An audit of the BIGNUM code is underway, for which debugging code is
2721 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2722 is considered valid when processing BIGNUMs, and causes execution to
2723 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2724 further steps are taken to deliberately pollute unused data in BIGNUM
2725 structures to try and expose faulty code further on. For now, openssl will
2726 (in its default mode of operation) continue to tolerate the inconsistent
2727 forms that it has tolerated in the past, but authors and packagers should
2728 consider trying openssl and their own applications when compiled with
2729 these debugging symbols defined. It will help highlight potential bugs in
2730 their own code, and will improve the test coverage for OpenSSL itself. At
2731 some point, these tighter rules will become openssl's default to improve
2732 maintainability, though the assert()s and other overheads will remain only
2733 in debugging configurations. See bn.h for more details.
2734 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2736 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2737 that can only be obtained through BN_CTX_new() (which implicitly
2738 initialises it). The presence of this function only made it possible
2739 to overwrite an existing structure (and cause memory leaks).
2742 *) Because of the callback-based approach for implementing LHASH as a
2743 template type, lh_insert() adds opaque objects to hash-tables and
2744 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2745 to clean up those corresponding objects before destroying the hash table
2746 (and losing the object pointers). So some over-zealous constifications in
2747 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2748 objects as "const" and the lh_doall[_arg] callback wrappers are not
2749 prototyped to have "const" restrictions on the object pointers they are
2750 given (and so aren't required to cast them away any more).
2753 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2754 (speed) prefers to use its own implementation. The two implementations
2755 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2756 its object type properly exposed (MS_TM) instead of casting to/from "char
2757 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2758 aren't necessarily the greatest nomenclatures - but this is what was used
2759 internally to the implementation so I've used that for now.
2762 *) Ensure that deprecated functions do not get compiled when
2763 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2764 the self-tests were still using deprecated key-generation functions so
2765 these have been updated also.
2768 *) Reorganise PKCS#7 code to separate the digest location functionality
2769 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2770 New function PKCS7_set_digest() to set the digest type for PKCS#7
2771 digestedData type. Add additional code to correctly generate the
2772 digestedData type and add support for this type in PKCS7 initialization
2776 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2777 structure of type "other".
2780 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2781 sure the loop does correctly stop and breaking ("division by zero")
2782 modulus operations are not performed. The (pre-generated) prime
2783 table crypto/bn/bn_prime.h was already correct, but it could not be
2784 re-generated on some platforms because of the "division by zero"
2785 situation in the script.
2786 [Ralf S. Engelschall]
2788 *) Update support for ECC-based TLS ciphersuites according to
2789 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2790 SHA-1 now is only used for "small" curves (where the
2791 representation of a field element takes up to 24 bytes); for
2792 larger curves, the field element resulting from ECDH is directly
2793 used as premaster secret.
2794 [Douglas Stebila (Sun Microsystems Laboratories)]
2796 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2797 curve secp160r1 to the tests.
2798 [Douglas Stebila (Sun Microsystems Laboratories)]
2800 *) Add the possibility to load symbols globally with DSO.
2801 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2803 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2804 control of the error stack.
2807 *) Add support for STORE in ENGINE.
2810 *) Add the STORE type. The intention is to provide a common interface
2811 to certificate and key stores, be they simple file-based stores, or
2812 HSM-type store, or LDAP stores, or...
2813 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2816 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2817 pass a list of arguments to any function as well as provide a way
2818 for a function to pass data back to the caller.
2821 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2822 works like BUF_strdup() but can be used to duplicate a portion of
2823 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2827 *) Add the function sk_find_ex() which works like sk_find(), but will
2828 return an index to an element even if an exact match couldn't be
2829 found. The index is guaranteed to point at the element where the
2830 searched-for key would be inserted to preserve sorting order.
2833 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2834 takes an extra flags argument for optional functionality. Currently,
2835 the following flags are defined:
2837 OBJ_BSEARCH_VALUE_ON_NOMATCH
2838 This one gets OBJ_bsearch_ex() to return a pointer to the first
2839 element where the comparing function returns a negative or zero
2842 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2843 This one gets OBJ_bsearch_ex() to return a pointer to the first
2844 element where the comparing function returns zero. This is useful
2845 if there are more than one element where the comparing function
2849 *) Make it possible to create self-signed certificates with 'openssl ca'
2850 in such a way that the self-signed certificate becomes part of the
2851 CA database and uses the same mechanisms for serial number generation
2852 as all other certificate signing. The new flag '-selfsign' enables
2853 this functionality. Adapt CA.sh and CA.pl.in.
2856 *) Add functionality to check the public key of a certificate request
2857 against a given private. This is useful to check that a certificate
2858 request can be signed by that key (self-signing).
2861 *) Make it possible to have multiple active certificates with the same
2862 subject in the CA index file. This is done only if the keyword
2863 'unique_subject' is set to 'no' in the main CA section (default
2864 if 'CA_default') of the configuration file. The value is saved
2865 with the database itself in a separate index attribute file,
2866 named like the index file with '.attr' appended to the name.
2869 *) Generate muti valued AVAs using '+' notation in config files for
2873 *) Support for nameConstraints certificate extension.
2876 *) Support for policyConstraints certificate extension.
2879 *) Support for policyMappings certificate extension.
2882 *) Make sure the default DSA_METHOD implementation only uses its
2883 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2884 and change its own handlers to be NULL so as to remove unnecessary
2885 indirection. This lets alternative implementations fallback to the
2886 default implementation more easily.
2889 *) Support for directoryName in GeneralName related extensions
2893 *) Make it possible to link applications using Makefile.shared.
2894 Make that possible even when linking against static libraries!
2897 *) Support for single pass processing for S/MIME signing. This now
2898 means that S/MIME signing can be done from a pipe, in addition
2899 cleartext signing (multipart/signed type) is effectively streaming
2900 and the signed data does not need to be all held in memory.
2902 This is done with a new flag PKCS7_STREAM. When this flag is set
2903 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2904 is done after the data is output (and digests calculated) in
2905 SMIME_write_PKCS7().
2908 *) Add full support for -rpath/-R, both in shared libraries and
2909 applications, at least on the platforms where it's known how
2913 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2914 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2915 will now compute a table of multiples of the generator that
2916 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2917 faster (notably in the case of a single point multiplication,
2918 scalar * generator).
2919 [Nils Larsch, Bodo Moeller]
2921 *) IPv6 support for certificate extensions. The various extensions
2922 which use the IP:a.b.c.d can now take IPv6 addresses using the
2923 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2927 *) Added an ENGINE that implements RSA by performing private key
2928 exponentiations with the GMP library. The conversions to and from
2929 GMP's mpz_t format aren't optimised nor are any montgomery forms
2930 cached, and on x86 it appears OpenSSL's own performance has caught up.
2931 However there are likely to be other architectures where GMP could
2932 provide a boost. This ENGINE is not built in by default, but it can be
2933 specified at Configure time and should be accompanied by the necessary
2934 linker additions, eg;
2935 ./config -DOPENSSL_USE_GMP -lgmp
2938 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2939 testing availability of engines with "-t" - the old behaviour is
2940 produced by increasing the feature's verbosity with "-tt".
2943 *) ECDSA routines: under certain error conditions uninitialized BN objects
2944 could be freed. Solution: make sure initialization is performed early
2945 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2949 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2950 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2951 software implementations. For DSA and DH, parameter generation can
2952 also be overriden by providing the appropriate method callbacks.
2955 *) Change the "progress" mechanism used in key-generation and
2956 primality testing to functions that take a new BN_GENCB pointer in
2957 place of callback/argument pairs. The new API functions have "_ex"
2958 postfixes and the older functions are reimplemented as wrappers for
2959 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2960 declarations of the old functions to help (graceful) attempts to
2961 migrate to the new functions. Also, the new key-generation API
2962 functions operate on a caller-supplied key-structure and return
2963 success/failure rather than returning a key or NULL - this is to
2964 help make "keygen" another member function of RSA_METHOD etc.
2966 Example for using the new callback interface:
2968 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2972 BN_GENCB_set(&my_cb, my_callback, my_arg);
2974 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2975 /* For the meaning of a, b in calls to my_callback(), see the
2976 * documentation of the function that calls the callback.
2977 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2978 * my_callback should return 1 if it wants BN_is_prime_ex()
2979 * to continue, or 0 to stop.
2984 *) Change the ZLIB compression method to be stateful, and make it
2985 available to TLS with the number defined in
2986 draft-ietf-tls-compression-04.txt.
2989 *) Add the ASN.1 structures and functions for CertificatePair, which
2990 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2992 CertificatePair ::= SEQUENCE {
2993 forward [0] Certificate OPTIONAL,
2994 reverse [1] Certificate OPTIONAL,
2995 -- at least one of the pair shall be present -- }
2997 Also implement the PEM functions to read and write certificate
2998 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3000 This needed to be defined, mostly for the sake of the LDAP
3001 attribute crossCertificatePair, but may prove useful elsewhere as
3005 *) Make it possible to inhibit symlinking of shared libraries in
3006 Makefile.shared, for Cygwin's sake.
3009 *) Extend the BIGNUM API by creating a function
3010 void BN_set_negative(BIGNUM *a, int neg);
3011 and a macro that behave like
3012 int BN_is_negative(const BIGNUM *a);
3014 to avoid the need to access 'a->neg' directly in applications.
3017 *) Implement fast modular reduction for pseudo-Mersenne primes
3018 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3019 EC_GROUP_new_curve_GFp() will now automatically use this
3021 [Nils Larsch <nla@trustcenter.de>]
3023 *) Add new lock type (CRYPTO_LOCK_BN).
3026 *) Change the ENGINE framework to automatically load engines
3027 dynamically from specific directories unless they could be
3028 found to already be built in or loaded. Move all the
3029 current engines except for the cryptodev one to a new
3031 The engines in engines/ are built as shared libraries if
3032 the "shared" options was given to ./Configure or ./config.
3033 Otherwise, they are inserted in libcrypto.a.
3034 /usr/local/ssl/engines is the default directory for dynamic
3035 engines, but that can be overriden at configure time through
3036 the usual use of --prefix and/or --openssldir, and at run
3037 time with the environment variable OPENSSL_ENGINES.
3038 [Geoff Thorpe and Richard Levitte]
3040 *) Add Makefile.shared, a helper makefile to build shared
3041 libraries. Addapt Makefile.org.
3044 *) Add version info to Win32 DLLs.
3045 [Peter 'Luna' Runestig" <peter@runestig.com>]
3047 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3048 can be added using this API to created arbitrary PKCS#12
3049 files while avoiding the low level API.
3051 New options to PKCS12_create(), key or cert can be NULL and
3052 will then be omitted from the output file. The encryption
3053 algorithm NIDs can be set to -1 for no encryption, the mac
3054 iteration count can be set to 0 to omit the mac.
3056 Enhance pkcs12 utility by making the -nokeys and -nocerts
3057 options work when creating a PKCS#12 file. New option -nomac
3058 to omit the mac, NONE can be set for an encryption algorithm.
3059 New code is modified to use the enhanced PKCS12_create()
3060 instead of the low level API.
3063 *) Extend ASN1 encoder to support indefinite length constructed
3064 encoding. This can output sequences tags and octet strings in
3065 this form. Modify pk7_asn1.c to support indefinite length
3066 encoding. This is experimental and needs additional code to
3067 be useful, such as an ASN1 bio and some enhanced streaming
3070 Extend template encode functionality so that tagging is passed
3071 down to the template encoder.
3074 *) Let 'openssl req' fail if an argument to '-newkey' is not
3075 recognized instead of using RSA as a default.
3078 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3079 As these are not official, they are not included in "ALL";
3080 the "ECCdraft" ciphersuite group alias can be used to select them.
3081 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3083 *) Add ECDH engine support.
3084 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3086 *) Add ECDH in new directory crypto/ecdh/.
3087 [Douglas Stebila (Sun Microsystems Laboratories)]
3089 *) Let BN_rand_range() abort with an error after 100 iterations
3090 without success (which indicates a broken PRNG).
3093 *) Change BN_mod_sqrt() so that it verifies that the input value
3094 is really the square of the return value. (Previously,
3095 BN_mod_sqrt would show GIGO behaviour.)
3098 *) Add named elliptic curves over binary fields from X9.62, SECG,
3099 and WAP/WTLS; add OIDs that were still missing.
3101 [Sheueling Chang Shantz and Douglas Stebila
3102 (Sun Microsystems Laboratories)]
3104 *) Extend the EC library for elliptic curves over binary fields
3105 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3108 EC_GF2m_simple_method
3112 EC_GROUP_new_curve_GF2m
3113 EC_GROUP_set_curve_GF2m
3114 EC_GROUP_get_curve_GF2m
3115 EC_POINT_set_affine_coordinates_GF2m
3116 EC_POINT_get_affine_coordinates_GF2m
3117 EC_POINT_set_compressed_coordinates_GF2m
3119 Point compression for binary fields is disabled by default for
3120 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3123 As binary polynomials are represented as BIGNUMs, various members
3124 of the EC_GROUP and EC_POINT data structures can be shared
3125 between the implementations for prime fields and binary fields;
3126 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3127 are essentially identical to their ..._GFp counterparts.
3128 (For simplicity, the '..._GFp' prefix has been dropped from
3129 various internal method names.)
3131 An internal 'field_div' method (similar to 'field_mul' and
3132 'field_sqr') has been added; this is used only for binary fields.
3134 [Sheueling Chang Shantz and Douglas Stebila
3135 (Sun Microsystems Laboratories)]
3137 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3138 through methods ('mul', 'precompute_mult').
3140 The generic implementations (now internally called 'ec_wNAF_mul'
3141 and 'ec_wNAF_precomputed_mult') remain the default if these
3142 methods are undefined.
3144 [Sheueling Chang Shantz and Douglas Stebila
3145 (Sun Microsystems Laboratories)]
3147 *) New function EC_GROUP_get_degree, which is defined through
3148 EC_METHOD. For curves over prime fields, this returns the bit
3149 length of the modulus.
3151 [Sheueling Chang Shantz and Douglas Stebila
3152 (Sun Microsystems Laboratories)]
3154 *) New functions EC_GROUP_dup, EC_POINT_dup.
3155 (These simply call ..._new and ..._copy).
3157 [Sheueling Chang Shantz and Douglas Stebila
3158 (Sun Microsystems Laboratories)]
3160 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3161 Polynomials are represented as BIGNUMs (where the sign bit is not
3162 used) in the following functions [macros]:
3165 BN_GF2m_sub [= BN_GF2m_add]
3166 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3167 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3168 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3170 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3171 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3172 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3173 BN_GF2m_cmp [= BN_ucmp]
3175 (Note that only the 'mod' functions are actually for fields GF(2^m).
3176 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3178 For some functions, an the irreducible polynomial defining a
3179 field can be given as an 'unsigned int[]' with strictly
3180 decreasing elements giving the indices of those bits that are set;
3181 i.e., p[] represents the polynomial
3182 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3184 p[0] > p[1] > ... > p[k] = 0.
3185 This applies to the following functions:
3190 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3191 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3193 BN_GF2m_mod_sqrt_arr
3194 BN_GF2m_mod_solve_quad_arr
3198 Conversion can be performed by the following functions:
3203 bntest.c has additional tests for binary polynomial arithmetic.
3205 Two implementations for BN_GF2m_mod_div() are available.
3206 The default algorithm simply uses BN_GF2m_mod_inv() and
3207 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3208 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3209 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3211 [Sheueling Chang Shantz and Douglas Stebila
3212 (Sun Microsystems Laboratories)]
3214 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3215 functionality is disabled at compile-time.
3216 [Douglas Stebila <douglas.stebila@sun.com>]
3218 *) Change default behaviour of 'openssl asn1parse' so that more
3219 information is visible when viewing, e.g., a certificate:
3221 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3222 mode the content of non-printable OCTET STRINGs is output in a
3223 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3224 avoid the appearance of a printable string.
3225 [Nils Larsch <nla@trustcenter.de>]
3227 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3229 EC_GROUP_set_asn1_flag()
3230 EC_GROUP_get_asn1_flag()
3231 EC_GROUP_set_point_conversion_form()
3232 EC_GROUP_get_point_conversion_form()
3233 These control ASN1 encoding details:
3234 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3235 has been set to OPENSSL_EC_NAMED_CURVE.
3236 - Points are encoded in uncompressed form by default; options for
3237 asn1_for are as for point2oct, namely
3238 POINT_CONVERSION_COMPRESSED
3239 POINT_CONVERSION_UNCOMPRESSED
3240 POINT_CONVERSION_HYBRID
3242 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3245 EC_GROUP_get0_seed()
3246 EC_GROUP_get_seed_len()
3247 This is used only for ASN1 purposes (so far).
3248 [Nils Larsch <nla@trustcenter.de>]
3250 *) Add 'field_type' member to EC_METHOD, which holds the NID
3251 of the appropriate field type OID. The new function
3252 EC_METHOD_get_field_type() returns this value.
3253 [Nils Larsch <nla@trustcenter.de>]
3258 EC_POINT_point2hex()
3259 EC_POINT_hex2point()
3260 providing useful interfaces to EC_POINT_point2oct() and
3261 EC_POINT_oct2point().
3262 [Nils Larsch <nla@trustcenter.de>]
3264 *) Change internals of the EC library so that the functions
3265 EC_GROUP_set_generator()
3266 EC_GROUP_get_generator()
3267 EC_GROUP_get_order()
3268 EC_GROUP_get_cofactor()
3269 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3270 to methods, which would lead to unnecessary code duplication when
3271 adding different types of curves.
3272 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3274 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3275 arithmetic, and such that modified wNAFs are generated
3276 (which avoid length expansion in many cases).
3279 *) Add a function EC_GROUP_check_discriminant() (defined via
3280 EC_METHOD) that verifies that the curve discriminant is non-zero.
3282 Add a function EC_GROUP_check() that makes some sanity tests
3283 on a EC_GROUP, its generator and order. This includes
3284 EC_GROUP_check_discriminant().
3285 [Nils Larsch <nla@trustcenter.de>]
3287 *) Add ECDSA in new directory crypto/ecdsa/.
3289 Add applications 'openssl ecparam' and 'openssl ecdsa'
3290 (these are based on 'openssl dsaparam' and 'openssl dsa').
3292 ECDSA support is also included in various other files across the
3293 library. Most notably,
3294 - 'openssl req' now has a '-newkey ecdsa:file' option;
3295 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3296 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3297 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3298 them suitable for ECDSA where domain parameters must be
3299 extracted before the specific public key;
3300 - ECDSA engine support has been added.
3301 [Nils Larsch <nla@trustcenter.de>]
3303 *) Include some named elliptic curves, and add OIDs from X9.62,
3304 SECG, and WAP/WTLS. Each curve can be obtained from the new
3306 EC_GROUP_new_by_curve_name(),
3307 and the list of available named curves can be obtained with
3308 EC_get_builtin_curves().
3309 Also add a 'curve_name' member to EC_GROUP objects, which can be
3311 EC_GROUP_set_curve_name()
3312 EC_GROUP_get_curve_name()
3313 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3315 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3316 was actually never needed) and in BN_mul(). The removal in BN_mul()
3317 required a small change in bn_mul_part_recursive() and the addition
3318 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3319 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3320 bn_sub_words() and bn_add_words() except they take arrays with
3324 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3326 *) Cleanse PEM buffers before freeing them since they may contain
3328 [Benjamin Bennett <ben@psc.edu>]
3330 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3331 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3332 authentication-only ciphersuites.
3335 *) Since AES128 and AES256 share a single mask bit in the logic of
3336 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3337 kludge to work properly if AES128 is available and AES256 isn't.
3340 *) Expand security boundary to match 1.1.1 module.
3343 *) Remove redundant features: hash file source, editing of test vectors
3344 modify fipsld to use external fips_premain.c signature.
3347 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3348 run algorithm test programs.
3351 *) Make algorithm test programs more tolerant of whitespace.
3354 *) Have SSL/TLS server implementation tolerate "mismatched" record
3355 protocol version while receiving ClientHello even if the
3356 ClientHello is fragmented. (The server can't insist on the
3357 particular protocol version it has chosen before the ServerHello
3358 message has informed the client about his choice.)
3361 *) Load error codes if they are not already present instead of using a
3362 static variable. This allows them to be cleanly unloaded and reloaded.
3365 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3367 *) Introduce limits to prevent malicious keys being able to
3368 cause a denial of service. (CVE-2006-2940)
3369 [Steve Henson, Bodo Moeller]
3371 *) Fix ASN.1 parsing of certain invalid structures that can result
3372 in a denial of service. (CVE-2006-2937) [Steve Henson]
3374 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3375 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3377 *) Fix SSL client code which could crash if connecting to a
3378 malicious SSLv2 server. (CVE-2006-4343)
3379 [Tavis Ormandy and Will Drewry, Google Security Team]
3381 *) Change ciphersuite string processing so that an explicit
3382 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3383 will no longer include "AES128-SHA"), and any other similar
3384 ciphersuite (same bitmap) from *other* protocol versions (so that
3385 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3386 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3387 changes from 0.9.8b and 0.9.8d.
3390 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3392 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3393 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3395 *) Change the Unix randomness entropy gathering to use poll() when
3396 possible instead of select(), since the latter has some
3397 undesirable limitations.
3398 [Darryl Miles via Richard Levitte and Bodo Moeller]
3400 *) Disable rogue ciphersuites:
3402 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3403 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3404 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3406 The latter two were purportedly from
3407 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3410 Also deactive the remaining ciphersuites from
3411 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3412 unofficial, and the ID has long expired.
3415 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3416 dual-core machines) and other potential thread-safety issues.
3419 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3421 *) Adapt fipsld and the build system to link against the validated FIPS
3422 module in FIPS mode.
3425 *) Fixes for VC++ 2005 build under Windows.
3428 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3429 from a Windows bash shell such as MSYS. It is autodetected from the
3430 "config" script when run from a VC++ environment. Modify standard VC++
3431 build to use fipscanister.o from the GNU make build.
3434 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3436 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3437 The value now differs depending on if you build for FIPS or not.
3438 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3439 safely run with a non-FIPSed libcrypto, as it may crash because of
3440 the difference induced by this change.
3443 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3445 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3446 (part of SSL_OP_ALL). This option used to disable the
3447 countermeasure against man-in-the-middle protocol-version
3448 rollback in the SSL 2.0 server implementation, which is a bad
3449 idea. (CVE-2005-2969)
3451 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3452 for Information Security, National Institute of Advanced Industrial
3453 Science and Technology [AIST], Japan)]
3455 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3456 mainly for FIPS compliance and not fully integrated at this stage.
3459 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3460 the exponentiation using a fixed-length exponent. (Otherwise,
3461 the information leaked through timing could expose the secret key
3462 after many signatures; cf. Bleichenbacher's attack on DSA with
3466 *) Make a new fixed-window mod_exp implementation the default for
3467 RSA, DSA, and DH private-key operations so that the sequence of
3468 squares and multiplies and the memory access pattern are
3469 independent of the particular secret key. This will mitigate
3470 cache-timing and potential related attacks.
3472 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3473 and this is automatically used by BN_mod_exp_mont() if the new flag
3474 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3475 will use this BN flag for private exponents unless the flag
3476 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3477 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3479 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3481 *) Change the client implementation for SSLv23_method() and
3482 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3483 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3484 (Previously, the SSL 2.0 backwards compatible Client Hello
3485 message format would be used even with SSL_OP_NO_SSLv2.)
3488 *) Add support for smime-type MIME parameter in S/MIME messages which some
3492 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3493 a threadsafe manner. Modify rsa code to use new function and add calls
3494 to dsa and dh code (which had race conditions before).
3497 *) Include the fixed error library code in the C error file definitions
3498 instead of fixing them up at runtime. This keeps the error code
3499 structures constant.
3502 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3504 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3507 *) Fixes for newer kerberos headers. NB: the casts are needed because
3508 the 'length' field is signed on one version and unsigned on another
3509 with no (?) obvious way to tell the difference, without these VC++
3510 complains. Also the "definition" of FAR (blank) is no longer included
3511 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3512 some needed definitions.
3515 *) Undo Cygwin change.
3518 *) Added support for proxy certificates according to RFC 3820.
3519 Because they may be a security thread to unaware applications,
3520 they must be explicitely allowed in run-time. See
3521 docs/HOWTO/proxy_certificates.txt for further information.
3524 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3526 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3527 server and client random values. Previously
3528 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3529 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3531 This change has negligible security impact because:
3533 1. Server and client random values still have 24 bytes of pseudo random
3536 2. Server and client random values are sent in the clear in the initial
3539 3. The master secret is derived using the premaster secret (48 bytes in
3540 size for static RSA ciphersuites) as well as client server and random
3543 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3546 [Stephen Henson, reported by UK NISCC]
3548 *) Use Windows randomness collection on Cygwin.
3551 *) Fix hang in EGD/PRNGD query when communication socket is closed
3552 prematurely by EGD/PRNGD.
3553 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3555 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3558 *) Back-port of selected performance improvements from development
3559 branch, as well as improved support for PowerPC platforms.
3562 *) Add lots of checks for memory allocation failure, error codes to indicate
3563 failure and freeing up memory if a failure occurs.
3564 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3566 *) Add new -passin argument to dgst.
3569 *) Perform some character comparisons of different types in X509_NAME_cmp:
3570 this is needed for some certificates that reencode DNs into UTF8Strings
3571 (in violation of RFC3280) and can't or wont issue name rollover
3575 *) Make an explicit check during certificate validation to see that
3576 the CA setting in each certificate on the chain is correct. As a
3577 side effect always do the following basic checks on extensions,
3578 not just when there's an associated purpose to the check:
3580 - if there is an unhandled critical extension (unless the user
3581 has chosen to ignore this fault)
3582 - if the path length has been exceeded (if one is set at all)
3583 - that certain extensions fit the associated purpose (if one has
3587 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3589 *) Avoid a race condition when CRLs are checked in a multi threaded
3590 environment. This would happen due to the reordering of the revoked
3591 entries during signature checking and serial number lookup. Now the
3592 encoding is cached and the serial number sort performed under a lock.
3593 Add new STACK function sk_is_sorted().
3596 *) Add Delta CRL to the extension code.
3599 *) Various fixes to s3_pkt.c so alerts are sent properly.
3600 [David Holmes <d.holmes@f5.com>]
3602 *) Reduce the chances of duplicate issuer name and serial numbers (in
3603 violation of RFC3280) using the OpenSSL certificate creation utilities.
3604 This is done by creating a random 64 bit value for the initial serial
3605 number when a serial number file is created or when a self signed
3606 certificate is created using 'openssl req -x509'. The initial serial
3607 number file is created using 'openssl x509 -next_serial' in CA.pl
3608 rather than being initialized to 1.
3611 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3613 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3614 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3615 [Joe Orton, Steve Henson]
3617 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3619 [Joe Orton, Steve Henson]
3621 *) Make it possible to have multiple active certificates with the same
3622 subject in the CA index file. This is done only if the keyword
3623 'unique_subject' is set to 'no' in the main CA section (default
3624 if 'CA_default') of the configuration file. The value is saved
3625 with the database itself in a separate index attribute file,
3626 named like the index file with '.attr' appended to the name.
3629 *) X509 verify fixes. Disable broken certificate workarounds when
3630 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3631 keyUsage extension present. Don't accept CRLs with unhandled critical
3632 extensions: since verify currently doesn't process CRL extensions this
3633 rejects a CRL with *any* critical extensions. Add new verify error codes
3637 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3638 A clarification of RFC2560 will require the use of OCTET STRINGs and
3639 some implementations cannot handle the current raw format. Since OpenSSL
3640 copies and compares OCSP nonces as opaque blobs without any attempt at
3641 parsing them this should not create any compatibility issues.
3644 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3645 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3646 this HMAC (and other) operations are several times slower than OpenSSL
3650 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3651 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3653 *) Use the correct content when signing type "other".
3656 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3658 *) Fix various bugs revealed by running the NISCC test suite:
3660 Stop out of bounds reads in the ASN1 code when presented with
3661 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3663 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3665 If verify callback ignores invalid public key errors don't try to check
3666 certificate signature with the NULL public key.
3670 *) New -ignore_err option in ocsp application to stop the server
3671 exiting on the first error in a request.
3674 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3675 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3679 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3680 extra data after the compression methods not only for TLS 1.0
3681 but also for SSL 3.0 (as required by the specification).
3682 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3684 *) Change X509_certificate_type() to mark the key as exported/exportable
3685 when it's 512 *bits* long, not 512 bytes.
3688 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3689 blocks during encryption.
3692 *) Various fixes to base64 BIO and non blocking I/O. On write
3693 flushes were not handled properly if the BIO retried. On read
3694 data was not being buffered properly and had various logic bugs.
3695 This also affects blocking I/O when the data being decoded is a
3699 *) Various S/MIME bugfixes and compatibility changes:
3700 output correct application/pkcs7 MIME type if
3701 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3702 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3703 of files as .eml work). Correctly handle very long lines in MIME
3707 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3709 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3710 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3711 a protocol version number mismatch like a decryption error
3712 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3715 *) Turn on RSA blinding by default in the default implementation
3716 to avoid a timing attack. Applications that don't want it can call
3717 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3718 They would be ill-advised to do so in most cases.
3719 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3721 *) Change RSA blinding code so that it works when the PRNG is not
3722 seeded (in this case, the secret RSA exponent is abused as
3723 an unpredictable seed -- if it is not unpredictable, there
3724 is no point in blinding anyway). Make RSA blinding thread-safe
3725 by remembering the creator's thread ID in rsa->blinding and
3726 having all other threads use local one-time blinding factors
3727 (this requires more computation than sharing rsa->blinding, but
3728 avoids excessive locking; and if an RSA object is not shared
3729 between threads, blinding will still be very fast).
3732 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3733 ENGINE as defaults for all supported algorithms irrespective of
3734 the 'flags' parameter. 'flags' is now honoured, so applications
3735 should make sure they are passing it correctly.
3738 *) Target "mingw" now allows native Windows code to be generated in
3739 the Cygwin environment as well as with the MinGW compiler.
3742 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3744 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3745 via timing by performing a MAC computation even if incorrrect
3746 block cipher padding has been found. This is a countermeasure
3747 against active attacks where the attacker has to distinguish
3748 between bad padding and a MAC verification error. (CVE-2003-0078)
3750 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3751 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3752 Martin Vuagnoux (EPFL, Ilion)]
3754 *) Make the no-err option work as intended. The intention with no-err
3755 is not to have the whole error stack handling routines removed from
3756 libcrypto, it's only intended to remove all the function name and
3757 reason texts, thereby removing some of the footprint that may not
3758 be interesting if those errors aren't displayed anyway.
3760 NOTE: it's still possible for any application or module to have it's
3761 own set of error texts inserted. The routines are there, just not
3762 used by default when no-err is given.
3765 *) Add support for FreeBSD on IA64.
3766 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3768 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3769 Kerberos function mit_des_cbc_cksum(). Before this change,
3770 the value returned by DES_cbc_cksum() was like the one from
3771 mit_des_cbc_cksum(), except the bytes were swapped.
3772 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3774 *) Allow an application to disable the automatic SSL chain building.
3775 Before this a rather primitive chain build was always performed in
3776 ssl3_output_cert_chain(): an application had no way to send the
3777 correct chain if the automatic operation produced an incorrect result.
3779 Now the chain builder is disabled if either:
3781 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3783 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3785 The reasoning behind this is that an application would not want the
3786 auto chain building to take place if extra chain certificates are
3787 present and it might also want a means of sending no additional
3788 certificates (for example the chain has two certificates and the
3792 *) Add the possibility to build without the ENGINE framework.
3793 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3795 *) Under Win32 gmtime() can return NULL: check return value in
3796 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3799 *) DSA routines: under certain error conditions uninitialized BN objects
3800 could be freed. Solution: make sure initialization is performed early
3801 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3802 Nils Larsch <nla@trustcenter.de> via PR#459)
3805 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3806 checked on reconnect on the client side, therefore session resumption
3807 could still fail with a "ssl session id is different" error. This
3808 behaviour is masked when SSL_OP_ALL is used due to
3809 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3810 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3811 followup to PR #377.
3814 *) IA-32 assembler support enhancements: unified ELF targets, support
3815 for SCO/Caldera platforms, fix for Cygwin shared build.
3818 *) Add support for FreeBSD on sparc64. As a consequence, support for
3819 FreeBSD on non-x86 processors is separate from x86 processors on
3820 the config script, much like the NetBSD support.
3821 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3823 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3825 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3828 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3829 code (06) was taken as the first octet of the session ID and the last
3830 octet was ignored consequently. As a result SSLv2 client side session
3831 caching could not have worked due to the session ID mismatch between
3833 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3837 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3838 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3842 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3843 seems that in spite of existing for more than a year, many application
3844 author have done nothing to provide the necessary callbacks, which
3845 means that this particular engine will not work properly anywhere.
3846 This is a very unfortunate situation which forces us, in the name
3847 of usability, to give the hw_ncipher.c a static lock, which is part
3849 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3850 appear in 0.9.8 or later. We EXPECT application authors to have
3851 dealt properly with this when 0.9.8 is released (unless we actually
3852 make such changes in the libcrypto locking code that changes will
3853 have to be made anyway).
3856 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3857 octets have been read, EOF or an error occurs. Without this change
3858 some truncated ASN1 structures will not produce an error.
3861 *) Disable Heimdal support, since it hasn't been fully implemented.
3862 Still give the possibility to force the use of Heimdal, but with
3863 warnings and a request that patches get sent to openssl-dev.
3866 *) Add the VC-CE target, introduce the WINCE sysname, and add
3867 INSTALL.WCE and appropriate conditionals to make it build.
3868 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3870 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3871 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3872 edit numbers of the version.
3873 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3875 *) Introduce safe string copy and catenation functions
3876 (BUF_strlcpy() and BUF_strlcat()).
3877 [Ben Laurie (CHATS) and Richard Levitte]
3879 *) Avoid using fixed-size buffers for one-line DNs.
3880 [Ben Laurie (CHATS)]
3882 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3883 resizing buffers containing secrets, and use where appropriate.
3884 [Ben Laurie (CHATS)]
3886 *) Avoid using fixed size buffers for configuration file location.
3887 [Ben Laurie (CHATS)]
3889 *) Avoid filename truncation for various CA files.
3890 [Ben Laurie (CHATS)]
3892 *) Use sizeof in preference to magic numbers.
3893 [Ben Laurie (CHATS)]
3895 *) Avoid filename truncation in cert requests.
3896 [Ben Laurie (CHATS)]
3898 *) Add assertions to check for (supposedly impossible) buffer
3900 [Ben Laurie (CHATS)]
3902 *) Don't cache truncated DNS entries in the local cache (this could
3903 potentially lead to a spoofing attack).
3904 [Ben Laurie (CHATS)]
3906 *) Fix various buffers to be large enough for hex/decimal
3907 representations in a platform independent manner.
3908 [Ben Laurie (CHATS)]
3910 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3911 resizing buffers containing secrets, and use where appropriate.
3912 [Ben Laurie (CHATS)]
3914 *) Add BIO_indent() to avoid much slightly worrying code to do
3916 [Ben Laurie (CHATS)]
3918 *) Convert sprintf()/BIO_puts() to BIO_printf().
3919 [Ben Laurie (CHATS)]
3921 *) buffer_gets() could terminate with the buffer only half
3923 [Ben Laurie (CHATS)]
3925 *) Add assertions to prevent user-supplied crypto functions from
3926 overflowing internal buffers by having large block sizes, etc.
3927 [Ben Laurie (CHATS)]
3929 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3931 [Ben Laurie (CHATS)]
3933 *) Eliminate unused copy of key in RC4.
3934 [Ben Laurie (CHATS)]
3936 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3937 [Ben Laurie (CHATS)]
3939 *) Fix off-by-one error in EGD path.
3940 [Ben Laurie (CHATS)]
3942 *) If RANDFILE path is too long, ignore instead of truncating.
3943 [Ben Laurie (CHATS)]
3945 *) Eliminate unused and incorrectly sized X.509 structure
3947 [Ben Laurie (CHATS)]
3949 *) Eliminate unused and dangerous function knumber().
3950 [Ben Laurie (CHATS)]
3952 *) Eliminate unused and dangerous structure, KSSL_ERR.
3953 [Ben Laurie (CHATS)]
3955 *) Protect against overlong session ID context length in an encoded
3956 session object. Since these are local, this does not appear to be
3958 [Ben Laurie (CHATS)]
3960 *) Change from security patch (see 0.9.6e below) that did not affect
3961 the 0.9.6 release series:
3963 Remote buffer overflow in SSL3 protocol - an attacker could
3964 supply an oversized master key in Kerberos-enabled versions.
3966 [Ben Laurie (CHATS)]
3968 *) Change the SSL kerb5 codes to match RFC 2712.
3971 *) Make -nameopt work fully for req and add -reqopt switch.
3972 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3974 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3975 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3977 *) Make sure tests can be performed even if the corresponding algorithms
3978 have been removed entirely. This was also the last step to make
3979 OpenSSL compilable with DJGPP under all reasonable conditions.
3980 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3982 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3983 to allow version independent disabling of normally unselected ciphers,
3984 which may be activated as a side-effect of selecting a single cipher.
3986 (E.g., cipher list string "RSA" enables ciphersuites that are left
3987 out of "ALL" because they do not provide symmetric encryption.
3988 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3989 [Lutz Jaenicke, Bodo Moeller]
3991 *) Add appropriate support for separate platform-dependent build
3992 directories. The recommended way to make a platform-dependent
3993 build directory is the following (tested on Linux), maybe with
3996 # Place yourself outside of the OpenSSL source tree. In
3997 # this example, the environment variable OPENSSL_SOURCE
3998 # is assumed to contain the absolute OpenSSL source directory.
3999 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4000 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4001 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4002 mkdir -p `dirname $F`
4003 ln -s $OPENSSL_SOURCE/$F $F
4006 To be absolutely sure not to disturb the source tree, a "make clean"
4007 is a good thing. If it isn't successfull, don't worry about it,
4008 it probably means the source directory is very clean.
4011 *) Make sure any ENGINE control commands make local copies of string
4012 pointers passed to them whenever necessary. Otherwise it is possible
4013 the caller may have overwritten (or deallocated) the original string
4014 data when a later ENGINE operation tries to use the stored values.
4015 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4017 *) Improve diagnostics in file reading and command-line digests.
4018 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4020 *) Add AES modes CFB and OFB to the object database. Correct an
4021 error in AES-CFB decryption.
4024 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4025 allows existing EVP_CIPHER_CTX structures to be reused after
4026 calling EVP_*Final(). This behaviour is used by encryption
4027 BIOs and some applications. This has the side effect that
4028 applications must explicitly clean up cipher contexts with
4029 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4032 *) Check the values of dna and dnb in bn_mul_recursive before calling
4033 bn_mul_comba (a non zero value means the a or b arrays do not contain
4034 n2 elements) and fallback to bn_mul_normal if either is not zero.
4037 *) Fix escaping of non-ASCII characters when using the -subj option
4038 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4041 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4042 form for "surname", serialNumber has no short form.
4043 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4044 therefore remove "mail" short name for "internet 7".
4045 The OID for unique identifiers in X509 certificates is
4046 x500UniqueIdentifier, not uniqueIdentifier.
4047 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4050 *) Add an "init" command to the ENGINE config module and auto initialize
4051 ENGINEs. Without any "init" command the ENGINE will be initialized
4052 after all ctrl commands have been executed on it. If init=1 the
4053 ENGINE is initailized at that point (ctrls before that point are run
4054 on the uninitialized ENGINE and after on the initialized one). If
4055 init=0 then the ENGINE will not be iniatialized at all.
4058 *) Fix the 'app_verify_callback' interface so that the user-defined
4059 argument is actually passed to the callback: In the
4060 SSL_CTX_set_cert_verify_callback() prototype, the callback
4061 declaration has been changed from
4064 int (*cb)(X509_STORE_CTX *,void *);
4065 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4066 i=s->ctx->app_verify_callback(&ctx)
4067 has been changed into
4068 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4070 To update applications using SSL_CTX_set_cert_verify_callback(),
4071 a dummy argument can be added to their callback functions.
4072 [D. K. Smetters <smetters@parc.xerox.com>]
4074 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4075 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4077 *) Add and OPENSSL_LOAD_CONF define which will cause
4078 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4079 This allows older applications to transparently support certain
4080 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4081 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4082 load the config file and OPENSSL_add_all_algorithms_conf() which will
4083 always load it have also been added.
4086 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4087 Adjust NIDs and EVP layer.
4088 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4090 *) Config modules support in openssl utility.
4092 Most commands now load modules from the config file,
4093 though in a few (such as version) this isn't done
4094 because it couldn't be used for anything.
4096 In the case of ca and req the config file used is
4097 the same as the utility itself: that is the -config
4098 command line option can be used to specify an
4102 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4103 use "openssl_conf" if filename is NULL use default openssl config file.
4106 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4107 config section name. Add a new flag to tolerate a missing config file
4108 and move code to CONF_modules_load_file().
4111 *) Support for crypto accelerator cards from Accelerated Encryption
4112 Processing, www.aep.ie. (Use engine 'aep')
4113 The support was copied from 0.9.6c [engine] and adapted/corrected
4114 to work with the new engine framework.
4115 [AEP Inc. and Richard Levitte]
4117 *) Support for SureWare crypto accelerator cards from Baltimore
4118 Technologies. (Use engine 'sureware')
4119 The support was copied from 0.9.6c [engine] and adapted
4120 to work with the new engine framework.
4123 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4124 make the newer ENGINE framework commands for the CHIL engine work.
4125 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4127 *) Make it possible to produce shared libraries on ReliantUNIX.
4128 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4130 *) Add the configuration target debug-linux-ppro.
4131 Make 'openssl rsa' use the general key loading routines
4132 implemented in apps.c, and make those routines able to
4133 handle the key format FORMAT_NETSCAPE and the variant
4135 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4137 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4138 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4140 *) Add -keyform to rsautl, and document -engine.
4141 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4143 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4144 BIO_R_NO_SUCH_FILE error code rather than the generic
4145 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4148 *) Add new functions
4150 ERR_peek_last_error_line
4151 ERR_peek_last_error_line_data.
4152 These are similar to
4155 ERR_peek_error_line_data,
4156 but report on the latest error recorded rather than the first one
4157 still in the error queue.
4158 [Ben Laurie, Bodo Moeller]
4160 *) default_algorithms option in ENGINE config module. This allows things
4162 default_algorithms = ALL
4163 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4166 *) Prelminary ENGINE config module.
4169 *) New experimental application configuration code.
4172 *) Change the AES code to follow the same name structure as all other
4173 symmetric ciphers, and behave the same way. Move everything to
4174 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4175 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4177 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4178 [Ben Laurie and Theo de Raadt]
4180 *) Add option to output public keys in req command.
4181 [Massimiliano Pala madwolf@openca.org]
4183 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4184 (up to about 10% better than before for P-192 and P-224).
4187 *) New functions/macros
4189 SSL_CTX_set_msg_callback(ctx, cb)
4190 SSL_CTX_set_msg_callback_arg(ctx, arg)
4191 SSL_set_msg_callback(ssl, cb)
4192 SSL_set_msg_callback_arg(ssl, arg)
4194 to request calling a callback function
4196 void cb(int write_p, int version, int content_type,
4197 const void *buf, size_t len, SSL *ssl, void *arg)
4199 whenever a protocol message has been completely received
4200 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4201 protocol version according to which the SSL library interprets
4202 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4203 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4204 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4205 specification (change_cipher_spec(20), alert(21), handshake(22)).
4206 'buf' and 'len' point to the actual message, 'ssl' to the
4207 SSL object, and 'arg' is the application-defined value set by
4208 SSL[_CTX]_set_msg_callback_arg().
4210 'openssl s_client' and 'openssl s_server' have new '-msg' options
4211 to enable a callback that displays all protocol messages.
4214 *) Change the shared library support so shared libraries are built as
4215 soon as the corresponding static library is finished, and thereby get
4216 openssl and the test programs linked against the shared library.
4217 This still only happens when the keyword "shard" has been given to
4218 the configuration scripts.
4220 NOTE: shared library support is still an experimental thing, and
4221 backward binary compatibility is still not guaranteed.
4222 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4224 *) Add support for Subject Information Access extension.
4225 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4227 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4228 additional bytes when new memory had to be allocated, not just
4229 when reusing an existing buffer.
4232 *) New command line and configuration option 'utf8' for the req command.
4233 This allows field values to be specified as UTF8 strings.
4236 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4237 runs for the former and machine-readable output for the latter.
4240 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4241 of the e-mail address in the DN (i.e., it will go into a certificate
4242 extension only). The new configuration file option 'email_in_dn = no'
4243 has the same effect.
4244 [Massimiliano Pala madwolf@openca.org]
4246 *) Change all functions with names starting with des_ to be starting
4247 with DES_ instead. Add wrappers that are compatible with libdes,
4248 but are named _ossl_old_des_*. Finally, add macros that map the
4249 des_* symbols to the corresponding _ossl_old_des_* if libdes
4250 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4251 desired, the des_* symbols will be mapped to DES_*, with one
4254 Since we provide two compatibility mappings, the user needs to
4255 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4256 compatibility is desired. The default (i.e., when that macro
4257 isn't defined) is OpenSSL 0.9.6c compatibility.
4259 There are also macros that enable and disable the support of old
4260 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4261 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4262 are defined, the default will apply: to support the old des routines.
4264 In either case, one must include openssl/des.h to get the correct
4265 definitions. Do not try to just include openssl/des_old.h, that
4268 NOTE: This is a major break of an old API into a new one. Software
4269 authors are encouraged to switch to the DES_ style functions. Some
4270 time in the future, des_old.h and the libdes compatibility functions
4271 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4272 default), and then completely removed.
4275 *) Test for certificates which contain unsupported critical extensions.
4276 If such a certificate is found during a verify operation it is
4277 rejected by default: this behaviour can be overridden by either
4278 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4279 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4280 X509_supported_extension() has also been added which returns 1 if a
4281 particular extension is supported.
4284 *) Modify the behaviour of EVP cipher functions in similar way to digests
4285 to retain compatibility with existing code.
4288 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4289 compatibility with existing code. In particular the 'ctx' parameter does
4290 not have to be to be initialized before the call to EVP_DigestInit() and
4291 it is tidied up after a call to EVP_DigestFinal(). New function
4292 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4293 EVP_MD_CTX_copy() changed to not require the destination to be
4294 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4295 requires the destination to be valid.
4297 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4298 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4301 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4302 so that complete 'Handshake' protocol structures are kept in memory
4303 instead of overwriting 'msg_type' and 'length' with 'body' data.
4306 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4307 [Massimo Santin via Richard Levitte]
4309 *) Major restructuring to the underlying ENGINE code. This includes
4310 reduction of linker bloat, separation of pure "ENGINE" manipulation
4311 (initialisation, etc) from functionality dealing with implementations
4312 of specific crypto iterfaces. This change also introduces integrated
4313 support for symmetric ciphers and digest implementations - so ENGINEs
4314 can now accelerate these by providing EVP_CIPHER and EVP_MD
4315 implementations of their own. This is detailed in crypto/engine/README
4316 as it couldn't be adequately described here. However, there are a few
4317 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4318 were changed in the original introduction of ENGINE code have now
4319 reverted back - the hooking from this code to ENGINE is now a good
4320 deal more passive and at run-time, operations deal directly with
4321 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4322 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4323 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4324 they were not being used by the framework as there is no concept of a
4325 BIGNUM_METHOD and they could not be generalised to the new
4326 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4327 ENGINE_cpy() has been removed as it cannot be consistently defined in
4331 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4334 *) Change mkdef.pl to sort symbols that get the same entry number,
4335 and make sure the automatically generated functions ERR_load_*
4336 become part of libeay.num as well.
4339 *) New function SSL_renegotiate_pending(). This returns true once
4340 renegotiation has been requested (either SSL_renegotiate() call
4341 or HelloRequest/ClientHello receveived from the peer) and becomes
4342 false once a handshake has been completed.
4343 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4344 sends a HelloRequest, but does not ensure that a handshake takes
4345 place. SSL_renegotiate_pending() is useful for checking if the
4346 client has followed the request.)
4349 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4350 By default, clients may request session resumption even during
4351 renegotiation (if session ID contexts permit); with this option,
4352 session resumption is possible only in the first handshake.
4354 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4355 more bits available for options that should not be part of
4356 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4359 *) Add some demos for certificate and certificate request creation.
4362 *) Make maximum certificate chain size accepted from the peer application
4363 settable (SSL*_get/set_max_cert_list()), as proposed by
4364 "Douglas E. Engert" <deengert@anl.gov>.
4367 *) Add support for shared libraries for Unixware-7
4368 (Boyd Lynn Gerber <gerberb@zenez.com>).
4371 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4372 be done prior to destruction. Use this to unload error strings from
4373 ENGINEs that load their own error strings. NB: This adds two new API
4374 functions to "get" and "set" this destroy handler in an ENGINE.
4377 *) Alter all existing ENGINE implementations (except "openssl" and
4378 "openbsd") to dynamically instantiate their own error strings. This
4379 makes them more flexible to be built both as statically-linked ENGINEs
4380 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4381 Also, add stub code to each that makes building them as self-contained
4382 shared-libraries easier (see README.ENGINE).
4385 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4386 implementations into applications that are completely implemented in
4387 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4388 commands that can be used to configure what shared-library to load and
4389 to control aspects of the way it is handled. Also, made an update to
4390 the README.ENGINE file that brings its information up-to-date and
4391 provides some information and instructions on the "dynamic" ENGINE
4392 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4395 *) Make it possible to unload ranges of ERR strings with a new
4396 "ERR_unload_strings" function.
4399 *) Add a copy() function to EVP_MD.
4402 *) Make EVP_MD routines take a context pointer instead of just the
4403 md_data void pointer.
4406 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4407 that the digest can only process a single chunk of data
4408 (typically because it is provided by a piece of
4409 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4410 is only going to provide a single chunk of data, and hence the
4411 framework needn't accumulate the data for oneshot drivers.
4414 *) As with "ERR", make it possible to replace the underlying "ex_data"
4415 functions. This change also alters the storage and management of global
4416 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4417 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4418 index counters. The API functions that use this state have been changed
4419 to take a "class_index" rather than pointers to the class's local STACK
4420 and counter, and there is now an API function to dynamically create new
4421 classes. This centralisation allows us to (a) plug a lot of the
4422 thread-safety problems that existed, and (b) makes it possible to clean
4423 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4424 such data would previously have always leaked in application code and
4425 workarounds were in place to make the memory debugging turn a blind eye
4426 to it. Application code that doesn't use this new function will still
4427 leak as before, but their memory debugging output will announce it now
4428 rather than letting it slide.
4430 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4431 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4432 has a return value to indicate success or failure.
4435 *) Make it possible to replace the underlying "ERR" functions such that the
4436 global state (2 LHASH tables and 2 locks) is only used by the "default"
4437 implementation. This change also adds two functions to "get" and "set"
4438 the implementation prior to it being automatically set the first time
4439 any other ERR function takes place. Ie. an application can call "get",
4440 pass the return value to a module it has just loaded, and that module
4441 can call its own "set" function using that value. This means the
4442 module's "ERR" operations will use (and modify) the error state in the
4443 application and not in its own statically linked copy of OpenSSL code.
4446 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4447 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4448 the operation, and provides a more encapsulated way for external code
4449 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4450 to use these functions rather than manually incrementing the counts.
4452 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4455 *) Add EVP test program.
4458 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4461 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4462 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4463 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4464 These allow a CRL to be built without having to access X509_CRL fields
4465 directly. Modify 'ca' application to use new functions.
4468 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4469 bug workarounds. Rollback attack detection is a security feature.
4470 The problem will only arise on OpenSSL servers when TLSv1 is not
4471 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4472 Software authors not wanting to support TLSv1 will have special reasons
4473 for their choice and can explicitly enable this option.
4474 [Bodo Moeller, Lutz Jaenicke]
4476 *) Rationalise EVP so it can be extended: don't include a union of
4477 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4478 (similar to those existing for EVP_CIPHER_CTX).
4483 EVP_MD_CTX_init(&md); /* new function call */
4484 EVP_DigestInit(&md, EVP_sha1());
4485 EVP_DigestUpdate(&md, in, len);
4486 EVP_DigestFinal(&md, out, NULL);
4487 EVP_MD_CTX_cleanup(&md); /* new function call */
4491 *) Make DES key schedule conform to the usual scheme, as well as
4492 correcting its structure. This means that calls to DES functions
4493 now have to pass a pointer to a des_key_schedule instead of a
4494 plain des_key_schedule (which was actually always a pointer
4497 des_key_schedule ks;
4499 des_set_key_checked(..., &ks);
4500 des_ncbc_encrypt(..., &ks, ...);
4502 (Note that a later change renames 'des_...' into 'DES_...'.)
4505 *) Initial reduction of linker bloat: the use of some functions, such as
4506 PEM causes large amounts of unused functions to be linked in due to
4507 poor organisation. For example pem_all.c contains every PEM function
4508 which has a knock on effect of linking in large amounts of (unused)
4509 ASN1 code. Grouping together similar functions and splitting unrelated
4510 functions prevents this.
4513 *) Cleanup of EVP macros.
4516 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4517 correct _ecb suffix.
4520 *) Add initial OCSP responder support to ocsp application. The
4521 revocation information is handled using the text based index
4522 use by the ca application. The responder can either handle
4523 requests generated internally, supplied in files (for example
4524 via a CGI script) or using an internal minimal server.
4527 *) Add configuration choices to get zlib compression for TLS.
4530 *) Changes to Kerberos SSL for RFC 2712 compliance:
4531 1. Implemented real KerberosWrapper, instead of just using
4532 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4533 2. Implemented optional authenticator field of KerberosWrapper.
4535 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4536 and authenticator structs; see crypto/krb5/.
4538 Generalized Kerberos calls to support multiple Kerberos libraries.
4539 [Vern Staats <staatsvr@asc.hpc.mil>,
4540 Jeffrey Altman <jaltman@columbia.edu>
4541 via Richard Levitte]
4543 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4544 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4545 values for each of the key sizes rather than having just
4546 parameters (and 'speed' generating keys each time).
4549 *) Speed up EVP routines.
4552 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4553 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4554 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4555 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4557 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4558 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4559 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4562 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4564 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4567 *) Added the OS2-EMX target.
4568 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4570 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4571 to support NCONF routines in extension code. New function CONF_set_nconf()
4572 to allow functions which take an NCONF to also handle the old LHASH
4573 structure: this means that the old CONF compatible routines can be
4574 retained (in particular wrt extensions) without having to duplicate the
4575 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4578 *) Enhance the general user interface with mechanisms for inner control
4579 and with possibilities to have yes/no kind of prompts.
4582 *) Change all calls to low level digest routines in the library and
4583 applications to use EVP. Add missing calls to HMAC_cleanup() and
4584 don't assume HMAC_CTX can be copied using memcpy().
4585 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4587 *) Add the possibility to control engines through control names but with
4588 arbitrary arguments instead of just a string.
4589 Change the key loaders to take a UI_METHOD instead of a callback
4590 function pointer. NOTE: this breaks binary compatibility with earlier
4591 versions of OpenSSL [engine].
4592 Adapt the nCipher code for these new conditions and add a card insertion
4596 *) Enhance the general user interface with mechanisms to better support
4597 dialog box interfaces, application-defined prompts, the possibility
4598 to use defaults (for example default passwords from somewhere else)
4599 and interrupts/cancellations.
4602 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4603 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4606 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4607 tidy up some unnecessarily weird code in 'sk_new()').
4608 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4610 *) Change the key loading routines for ENGINEs to use the same kind
4611 callback (pem_password_cb) as all other routines that need this
4615 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4616 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4617 than this minimum value is recommended.
4620 *) New random seeder for OpenVMS, using the system process statistics
4621 that are easily reachable.
4624 *) Windows apparently can't transparently handle global
4625 variables defined in DLLs. Initialisations such as:
4627 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4629 wont compile. This is used by the any applications that need to
4630 declare their own ASN1 modules. This was fixed by adding the option
4631 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4632 needed for static libraries under Win32.
4635 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4636 setting of purpose and trust fields. New X509_STORE trust and
4637 purpose functions and tidy up setting in other SSL functions.
4640 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4641 structure. These are inherited by X509_STORE_CTX when it is
4642 initialised. This allows various defaults to be set in the
4643 X509_STORE structure (such as flags for CRL checking and custom
4644 purpose or trust settings) for functions which only use X509_STORE_CTX
4645 internally such as S/MIME.
4647 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4648 trust settings if they are not set in X509_STORE. This allows X509_STORE
4649 purposes and trust (in S/MIME for example) to override any set by default.
4651 Add command line options for CRL checking to smime, s_client and s_server
4655 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4656 are set then the CRL is looked up in the X509_STORE structure and
4657 its validity and signature checked, then if the certificate is found
4658 in the CRL the verify fails with a revoked error.
4660 Various new CRL related callbacks added to X509_STORE_CTX structure.
4662 Command line options added to 'verify' application to support this.
4664 This needs some additional work, such as being able to handle multiple
4665 CRLs with different times, extension based lookup (rather than just
4666 by subject name) and ultimately more complete V2 CRL extension
4670 *) Add a general user interface API (crypto/ui/). This is designed
4671 to replace things like des_read_password and friends (backward
4672 compatibility functions using this new API are provided).
4673 The purpose is to remove prompting functions from the DES code
4674 section as well as provide for prompting through dialog boxes in
4675 a window system and the like.
4678 *) Add "ex_data" support to ENGINE so implementations can add state at a
4679 per-structure level rather than having to store it globally.
4682 *) Make it possible for ENGINE structures to be copied when retrieved by
4683 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4684 This causes the "original" ENGINE structure to act like a template,
4685 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4686 operational state can be localised to each ENGINE structure, despite the
4687 fact they all share the same "methods". New ENGINE structures returned in
4688 this case have no functional references and the return value is the single
4689 structural reference. This matches the single structural reference returned
4690 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4694 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4695 needs to match any other type at all we need to manually clear the
4699 *) Changes to the "openssl engine" utility to include;
4700 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4701 about an ENGINE's available control commands.
4702 - executing control commands from command line arguments using the
4703 '-pre' and '-post' switches. '-post' is only used if '-t' is
4704 specified and the ENGINE is successfully initialised. The syntax for
4705 the individual commands are colon-separated, for example;
4706 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4709 *) New dynamic control command support for ENGINEs. ENGINEs can now
4710 declare their own commands (numbers), names (strings), descriptions,
4711 and input types for run-time discovery by calling applications. A
4712 subset of these commands are implicitly classed as "executable"
4713 depending on their input type, and only these can be invoked through
4714 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4715 can be based on user input, config files, etc). The distinction is
4716 that "executable" commands cannot return anything other than a boolean
4717 result and can only support numeric or string input, whereas some
4718 discoverable commands may only be for direct use through
4719 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4720 pointers, or other custom uses. The "executable" commands are to
4721 support parameterisations of ENGINE behaviour that can be
4722 unambiguously defined by ENGINEs and used consistently across any
4723 OpenSSL-based application. Commands have been added to all the
4724 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4725 control over shared-library paths without source code alterations.
4728 *) Changed all ENGINE implementations to dynamically allocate their
4729 ENGINEs rather than declaring them statically. Apart from this being
4730 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4731 this also allows the implementations to compile without using the
4732 internal engine_int.h header.
4735 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4736 'const' value. Any code that should be able to modify a RAND_METHOD
4737 should already have non-const pointers to it (ie. they should only
4738 modify their own ones).
4741 *) Made a variety of little tweaks to the ENGINE code.
4742 - "atalla" and "ubsec" string definitions were moved from header files
4743 to C code. "nuron" string definitions were placed in variables
4744 rather than hard-coded - allowing parameterisation of these values
4745 later on via ctrl() commands.
4746 - Removed unused "#if 0"'d code.
4747 - Fixed engine list iteration code so it uses ENGINE_free() to release
4748 structural references.
4749 - Constified the RAND_METHOD element of ENGINE structures.
4750 - Constified various get/set functions as appropriate and added
4751 missing functions (including a catch-all ENGINE_cpy that duplicates
4752 all ENGINE values onto a new ENGINE except reference counts/state).
4753 - Removed NULL parameter checks in get/set functions. Setting a method
4754 or function to NULL is a way of cancelling out a previously set
4755 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4756 and doesn't justify the extra error symbols and code.
4757 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4758 flags from engine_int.h to engine.h.
4759 - Changed prototypes for ENGINE handler functions (init(), finish(),
4760 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4763 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4764 to the algorithm using long division. The binary algorithm can be
4765 used only if the modulus is odd. On 32-bit systems, it is faster
4766 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4767 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4768 up to 450 bits. In 64-bit environments, the binary algorithm
4769 appears to be advantageous for much longer moduli; here we use it
4770 for moduli up to 2048 bits.
4773 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4774 could not support the combine flag in choice fields.
4777 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4778 extensions from a certificate request to the certificate.
4781 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4782 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4783 file: this allows the display of the certificate about to be
4784 signed to be customised, to allow certain fields to be included
4785 or excluded and extension details. The old system didn't display
4786 multicharacter strings properly, omitted fields not in the policy
4787 and couldn't display additional details such as extensions.
4790 *) Function EC_POINTs_mul for multiple scalar multiplication
4791 of an arbitrary number of elliptic curve points
4792 \sum scalars[i]*points[i],
4793 optionally including the generator defined for the EC_GROUP:
4794 scalar*generator + \sum scalars[i]*points[i].
4796 EC_POINT_mul is a simple wrapper function for the typical case
4797 that the point list has just one item (besides the optional
4801 *) First EC_METHODs for curves over GF(p):
4803 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4804 operations and provides various method functions that can also
4805 operate with faster implementations of modular arithmetic.
4807 EC_GFp_mont_method() reuses most functions that are part of
4808 EC_GFp_simple_method, but uses Montgomery arithmetic.
4810 [Bodo Moeller; point addition and point doubling
4811 implementation directly derived from source code provided by
4812 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4814 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4815 crypto/ec/ec_lib.c):
4817 Curves are EC_GROUP objects (with an optional group generator)
4818 based on EC_METHODs that are built into the library.
4820 Points are EC_POINT objects based on EC_GROUP objects.
4822 Most of the framework would be able to handle curves over arbitrary
4823 finite fields, but as there are no obvious types for fields other
4824 than GF(p), some functions are limited to that for now.
4827 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4828 that the file contains a complete HTTP response.
4831 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4832 change the def and num file printf format specifier from "%-40sXXX"
4833 to "%-39s XXX". The latter will always guarantee a space after the
4834 field while the former will cause them to run together if the field
4835 is 40 of more characters long.
4838 *) Constify the cipher and digest 'method' functions and structures
4839 and modify related functions to take constant EVP_MD and EVP_CIPHER
4843 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4844 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4847 *) Modify EVP_Digest*() routines so they now return values. Although the
4848 internal software routines can never fail additional hardware versions
4852 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4854 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4855 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4858 ERR_R_NESTED_ASN1_ERROR
4860 ERR_R_MISSING_ASN1_EOS
4861 were 4 .. 9, conflicting with
4862 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4864 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4865 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4867 Add new error code 'ERR_R_INTERNAL_ERROR'.
4870 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4874 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4875 sets the subject name for a new request or supersedes the
4876 subject name in a given request. Formats that can be parsed are
4877 'CN=Some Name, OU=myOU, C=IT'
4879 'CN=Some Name/OU=myOU/C=IT'.
4881 Add options '-batch' and '-verbose' to 'openssl req'.
4882 [Massimiliano Pala <madwolf@hackmasters.net>]
4884 *) Introduce the possibility to access global variables through
4885 functions on platform were that's the best way to handle exporting
4886 global variables in shared libraries. To enable this functionality,
4887 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4888 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4889 is normally done by Configure or something similar).
4891 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4892 in the source file (foo.c) like this:
4894 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4895 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4897 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4898 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4900 OPENSSL_DECLARE_GLOBAL(int,foo);
4901 #define foo OPENSSL_GLOBAL_REF(foo)
4902 OPENSSL_DECLARE_GLOBAL(double,bar);
4903 #define bar OPENSSL_GLOBAL_REF(bar)
4905 The #defines are very important, and therefore so is including the
4906 header file everywhere where the defined globals are used.
4908 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4909 of ASN.1 items, but that structure is a bit different.
4911 The largest change is in util/mkdef.pl which has been enhanced with
4912 better and easier to understand logic to choose which symbols should
4913 go into the Windows .def files as well as a number of fixes and code
4914 cleanup (among others, algorithm keywords are now sorted
4915 lexicographically to avoid constant rewrites).
4918 *) In BN_div() keep a copy of the sign of 'num' before writing the
4919 result to 'rm' because if rm==num the value will be overwritten
4920 and produce the wrong result if 'num' is negative: this caused
4921 problems with BN_mod() and BN_nnmod().
4924 *) Function OCSP_request_verify(). This checks the signature on an
4925 OCSP request and verifies the signer certificate. The signer
4926 certificate is just checked for a generic purpose and OCSP request
4930 *) Add OCSP_check_validity() function to check the validity of OCSP
4931 responses. OCSP responses are prepared in real time and may only
4932 be a few seconds old. Simply checking that the current time lies
4933 between thisUpdate and nextUpdate max reject otherwise valid responses
4934 caused by either OCSP responder or client clock inaccuracy. Instead
4935 we allow thisUpdate and nextUpdate to fall within a certain period of
4936 the current time. The age of the response can also optionally be
4937 checked. Two new options -validity_period and -status_age added to
4941 *) If signature or public key algorithm is unrecognized print out its
4942 OID rather that just UNKNOWN.
4945 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4946 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4947 ID to be generated from the issuer certificate alone which can then be
4948 passed to OCSP_id_issuer_cmp().
4951 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4952 ASN1 modules to export functions returning ASN1_ITEM pointers
4953 instead of the ASN1_ITEM structures themselves. This adds several
4954 new macros which allow the underlying ASN1 function/structure to
4955 be accessed transparently. As a result code should not use ASN1_ITEM
4956 references directly (such as &X509_it) but instead use the relevant
4957 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4958 use of the new ASN1 code on platforms where exporting structures
4959 is problematical (for example in shared libraries) but exporting
4960 functions returning pointers to structures is not.
4963 *) Add support for overriding the generation of SSL/TLS session IDs.
4964 These callbacks can be registered either in an SSL_CTX or per SSL.
4965 The purpose of this is to allow applications to control, if they wish,
4966 the arbitrary values chosen for use as session IDs, particularly as it
4967 can be useful for session caching in multiple-server environments. A
4968 command-line switch for testing this (and any client code that wishes
4969 to use such a feature) has been added to "s_server".
4970 [Geoff Thorpe, Lutz Jaenicke]
4972 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4973 of the form '#if defined(...) || defined(...) || ...' and
4974 '#if !defined(...) && !defined(...) && ...'. This also avoids
4975 the growing number of special cases it was previously handling.
4978 *) Make all configuration macros available for application by making
4979 sure they are available in opensslconf.h, by giving them names starting
4980 with "OPENSSL_" to avoid conflicts with other packages and by making
4981 sure e_os2.h will cover all platform-specific cases together with
4983 Additionally, it is now possible to define configuration/platform-
4984 specific names (called "system identities"). In the C code, these
4985 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4986 macro with the name beginning with "OPENSSL_SYS_", which is determined
4987 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4991 *) New option -set_serial to 'req' and 'x509' this allows the serial
4992 number to use to be specified on the command line. Previously self
4993 signed certificates were hard coded with serial number 0 and the
4994 CA options of 'x509' had to use a serial number in a file which was
4998 *) New options to 'ca' utility to support V2 CRL entry extensions.
4999 Currently CRL reason, invalidity date and hold instruction are
5000 supported. Add new CRL extensions to V3 code and some new objects.
5003 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5004 disable standard block padding (aka PKCS#5 padding) in the EVP
5005 API, which was previously mandatory. This means that the data is
5006 not padded in any way and so the total length much be a multiple
5007 of the block size, otherwise an error occurs.
5010 *) Initial (incomplete) OCSP SSL support.
5013 *) New function OCSP_parse_url(). This splits up a URL into its host,
5014 port and path components: primarily to parse OCSP URLs. New -url
5015 option to ocsp utility.
5018 *) New nonce behavior. The return value of OCSP_check_nonce() now
5019 reflects the various checks performed. Applications can decide
5020 whether to tolerate certain situations such as an absent nonce
5021 in a response when one was present in a request: the ocsp application
5022 just prints out a warning. New function OCSP_add1_basic_nonce()
5023 this is to allow responders to include a nonce in a response even if
5024 the request is nonce-less.
5027 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5028 skipped when using openssl x509 multiple times on a single input file,
5029 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5032 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5033 set string type: to handle setting ASN1_TIME structures. Fix ca
5034 utility to correctly initialize revocation date of CRLs.
5037 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5038 the clients preferred ciphersuites and rather use its own preferences.
5039 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5040 Internet Explorer by ensuring unchanged hash method during stepup.
5041 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5044 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5045 to aes and add a new 'exist' option to print out symbols that don't
5049 *) Additional options to ocsp utility to allow flags to be set and
5050 additional certificates supplied.
5053 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5054 OCSP client a number of certificate to only verify the response
5058 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5059 handle the new API. Currently only ECB, CBC modes supported. Add new
5062 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5063 Encryption Standard (AES) Ciphersuites for Transport Layer
5064 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5065 not enabled by default and were not part of the "ALL" ciphersuite
5066 alias because they were not yet official; they could be
5067 explicitly requested by specifying the "AESdraft" ciphersuite
5068 group alias. In the final release of OpenSSL 0.9.7, the group
5069 alias is called "AES" and is part of "ALL".)
5070 [Ben Laurie, Steve Henson, Bodo Moeller]
5072 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5073 request to response.
5076 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5077 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5078 extract information from a certificate request. OCSP_response_create()
5079 creates a response and optionally adds a basic response structure.
5080 OCSP_basic_add1_status() adds a complete single response to a basic
5081 response and returns the OCSP_SINGLERESP structure just added (to allow
5082 extensions to be included for example). OCSP_basic_add1_cert() adds a
5083 certificate to a basic response and OCSP_basic_sign() signs a basic
5084 response with various flags. New helper functions ASN1_TIME_check()
5085 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5086 (converts ASN1_TIME to GeneralizedTime).
5089 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5090 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5091 structure from a certificate. X509_pubkey_digest() digests the public_key
5092 contents: this is used in various key identifiers.
5095 *) Make sk_sort() tolerate a NULL argument.
5096 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5098 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5099 passed by the function are trusted implicitly. If any of them signed the
5100 response then it is assumed to be valid and is not verified.
5103 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5104 to data. This was previously part of the PKCS7 ASN1 code. This
5105 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5106 [Steve Henson, reported by Kenneth R. Robinette
5107 <support@securenetterm.com>]
5109 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5110 routines: without these tracing memory leaks is very painful.
5111 Fix leaks in PKCS12 and PKCS7 routines.
5114 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5115 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5116 effectively meant GeneralizedTime would never be used. Now it
5117 is initialised to -1 but X509_time_adj() now has to check the value
5118 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5119 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5120 [Steve Henson, reported by Kenneth R. Robinette
5121 <support@securenetterm.com>]
5123 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5124 result in a zero length in the ASN1_INTEGER structure which was
5125 not consistent with the structure when d2i_ASN1_INTEGER() was used
5126 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5127 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5128 where it did not print out a minus for negative ASN1_INTEGER.
5131 *) Add summary printout to ocsp utility. The various functions which
5132 convert status values to strings have been renamed to:
5133 OCSP_response_status_str(), OCSP_cert_status_str() and
5134 OCSP_crl_reason_str() and are no longer static. New options
5135 to verify nonce values and to disable verification. OCSP response
5136 printout format cleaned up.
5139 *) Add additional OCSP certificate checks. These are those specified
5140 in RFC2560. This consists of two separate checks: the CA of the
5141 certificate being checked must either be the OCSP signer certificate
5142 or the issuer of the OCSP signer certificate. In the latter case the
5143 OCSP signer certificate must contain the OCSP signing extended key
5144 usage. This check is performed by attempting to match the OCSP
5145 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5146 in the OCSP_CERTID structures of the response.
5149 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5150 and related routines. This uses the standard OpenSSL certificate
5151 verify routines to perform initial checks (just CA validity) and
5152 to obtain the certificate chain. Then additional checks will be
5153 performed on the chain. Currently the root CA is checked to see
5154 if it is explicitly trusted for OCSP signing. This is used to set
5155 a root CA as a global signing root: that is any certificate that
5156 chains to that CA is an acceptable OCSP signing certificate.
5159 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5160 extensions from a separate configuration file.
5161 As when reading extensions from the main configuration file,
5162 the '-extensions ...' option may be used for specifying the
5164 [Massimiliano Pala <madwolf@comune.modena.it>]
5166 *) New OCSP utility. Allows OCSP requests to be generated or
5167 read. The request can be sent to a responder and the output
5168 parsed, outputed or printed in text form. Not complete yet:
5169 still needs to check the OCSP response validity.
5172 *) New subcommands for 'openssl ca':
5173 'openssl ca -status <serial>' prints the status of the cert with
5174 the given serial number (according to the index file).
5175 'openssl ca -updatedb' updates the expiry status of certificates
5177 [Massimiliano Pala <madwolf@comune.modena.it>]
5179 *) New '-newreq-nodes' command option to CA.pl. This is like
5180 '-newreq', but calls 'openssl req' with the '-nodes' option
5181 so that the resulting key is not encrypted.
5182 [Damien Miller <djm@mindrot.org>]
5184 *) New configuration for the GNU Hurd.
5185 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5187 *) Initial code to implement OCSP basic response verify. This
5188 is currently incomplete. Currently just finds the signer's
5189 certificate and verifies the signature on the response.
5192 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5193 value of OPENSSLDIR. This is available via the new '-d' option
5194 to 'openssl version', and is also included in 'openssl version -a'.
5197 *) Allowing defining memory allocation callbacks that will be given
5198 file name and line number information in additional arguments
5199 (a const char* and an int). The basic functionality remains, as
5200 well as the original possibility to just replace malloc(),
5201 realloc() and free() by functions that do not know about these
5202 additional arguments. To register and find out the current
5203 settings for extended allocation functions, the following
5204 functions are provided:
5206 CRYPTO_set_mem_ex_functions
5207 CRYPTO_set_locked_mem_ex_functions
5208 CRYPTO_get_mem_ex_functions
5209 CRYPTO_get_locked_mem_ex_functions
5211 These work the same way as CRYPTO_set_mem_functions and friends.
5212 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5213 extended allocation function is enabled.
5214 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5215 a conventional allocation function is enabled.
5216 [Richard Levitte, Bodo Moeller]
5218 *) Finish off removing the remaining LHASH function pointer casts.
5219 There should no longer be any prototype-casting required when using
5220 the LHASH abstraction, and any casts that remain are "bugs". See
5221 the callback types and macros at the head of lhash.h for details
5222 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5225 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5226 If /dev/[u]random devices are not available or do not return enough
5227 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5229 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5230 /etc/entropy will be queried once each in this sequence, quering stops
5231 when enough entropy was collected without querying more sockets.
5234 *) Change the Unix RAND_poll() variant to be able to poll several
5235 random devices, as specified by DEVRANDOM, until a sufficient amount
5236 of data has been collected. We spend at most 10 ms on each file
5237 (select timeout) and read in non-blocking mode. DEVRANDOM now
5238 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5239 (previously it was just the string "/dev/urandom"), so on typical
5240 platforms the 10 ms delay will never occur.
5241 Also separate out the Unix variant to its own file, rand_unix.c.
5242 For VMS, there's a currently-empty rand_vms.c.
5245 *) Move OCSP client related routines to ocsp_cl.c. These
5246 provide utility functions which an application needing
5247 to issue a request to an OCSP responder and analyse the
5248 response will typically need: as opposed to those which an
5249 OCSP responder itself would need which will be added later.
5251 OCSP_request_sign() signs an OCSP request with an API similar
5252 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5253 response. OCSP_response_get1_basic() extracts basic response
5254 from response. OCSP_resp_find_status(): finds and extracts status
5255 information from an OCSP_CERTID structure (which will be created
5256 when the request structure is built). These are built from lower
5257 level functions which work on OCSP_SINGLERESP structures but
5258 wont normally be used unless the application wishes to examine
5259 extensions in the OCSP response for example.
5261 Replace nonce routines with a pair of functions.
5262 OCSP_request_add1_nonce() adds a nonce value and optionally
5263 generates a random value. OCSP_check_nonce() checks the
5264 validity of the nonce in an OCSP response.
5267 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5268 This doesn't copy the supplied OCSP_CERTID and avoids the
5269 need to free up the newly created id. Change return type
5270 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5271 This can then be used to add extensions to the request.
5272 Deleted OCSP_request_new(), since most of its functionality
5273 is now in OCSP_REQUEST_new() (and the case insensitive name
5274 clash) apart from the ability to set the request name which
5275 will be added elsewhere.
5278 *) Update OCSP API. Remove obsolete extensions argument from
5279 various functions. Extensions are now handled using the new
5280 OCSP extension code. New simple OCSP HTTP function which
5281 can be used to send requests and parse the response.
5284 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5285 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5286 uses the special reorder version of SET OF to sort the attributes
5287 and reorder them to match the encoded order. This resolves a long
5288 standing problem: a verify on a PKCS7 structure just after signing
5289 it used to fail because the attribute order did not match the
5290 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5291 it uses the received order. This is necessary to tolerate some broken
5292 software that does not order SET OF. This is handled by encoding
5293 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5294 to produce the required SET OF.
5297 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5298 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5299 files to get correct declarations of the ASN.1 item variables.
5302 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5303 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5304 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5305 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5306 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5307 ASN1_ITEM and no wrapper functions.
5310 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5311 replace the old function pointer based I/O routines. Change most of
5312 the *_d2i_bio() and *_d2i_fp() functions to use these.
5315 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5316 lines, recognice more "algorithms" that can be deselected, and make
5317 it complain about algorithm deselection that isn't recognised.
5320 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5321 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5322 to use new functions. Add NO_ASN1_OLD which can be set to remove
5323 some old style ASN1 functions: this can be used to determine if old
5324 code will still work when these eventually go away.
5327 *) New extension functions for OCSP structures, these follow the
5328 same conventions as certificates and CRLs.
5331 *) New function X509V3_add1_i2d(). This automatically encodes and
5332 adds an extension. Its behaviour can be customised with various
5333 flags to append, replace or delete. Various wrappers added for
5334 certifcates and CRLs.
5337 *) Fix to avoid calling the underlying ASN1 print routine when
5338 an extension cannot be parsed. Correct a typo in the
5339 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5342 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5343 entries for variables.
5346 *) Add functionality to apps/openssl.c for detecting locking
5347 problems: As the program is single-threaded, all we have
5348 to do is register a locking callback using an array for
5349 storing which locks are currently held by the program.
5352 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5353 SSL_get_ex_data_X509_STORE_idx(), which is used in
5354 ssl_verify_cert_chain() and thus can be called at any time
5355 during TLS/SSL handshakes so that thread-safety is essential.
5356 Unfortunately, the ex_data design is not at all suited
5357 for multi-threaded use, so it probably should be abolished.
5360 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5361 [Broadcom, tweaked and integrated by Geoff Thorpe]
5363 *) Move common extension printing code to new function
5364 X509V3_print_extensions(). Reorganise OCSP print routines and
5365 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5368 *) New function X509_signature_print() to remove duplication in some
5372 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5373 set (this was treated exactly the same as SET OF previously). This
5374 is used to reorder the STACK representing the structure to match the
5375 encoding. This will be used to get round a problem where a PKCS7
5376 structure which was signed could not be verified because the STACK
5377 order did not reflect the encoded order.
5380 *) Reimplement the OCSP ASN1 module using the new code.
5383 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5384 for its ASN1 operations. The old style function pointers still exist
5385 for now but they will eventually go away.
5388 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5389 completely replaces the old ASN1 functionality with a table driven
5390 encoder and decoder which interprets an ASN1_ITEM structure describing
5391 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5392 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5393 has also been converted to the new form.
5396 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5397 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5398 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5399 for negative moduli.
5402 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5403 of not touching the result's sign bit.
5406 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5410 *) Changed the LHASH code to use prototypes for callbacks, and created
5411 macros to declare and implement thin (optionally static) functions
5412 that provide type-safety and avoid function pointer casting for the
5413 type-specific callbacks.
5416 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5418 [Veers Staats <staatsvr@asc.hpc.mil>,
5419 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5421 *) Reformat the FAQ so the different questions and answers can be divided
5422 in sections depending on the subject.
5425 *) Have the zlib compression code load ZLIB.DLL dynamically under
5429 *) New function BN_mod_sqrt for computing square roots modulo a prime
5430 (using the probabilistic Tonelli-Shanks algorithm unless
5431 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5432 be handled deterministically).
5433 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5435 *) Make BN_mod_inverse faster by explicitly handling small quotients
5436 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5437 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5440 *) New function BN_kronecker.
5443 *) Fix BN_gcd so that it works on negative inputs; the result is
5444 positive unless both parameters are zero.
5445 Previously something reasonably close to an infinite loop was
5446 possible because numbers could be growing instead of shrinking
5447 in the implementation of Euclid's algorithm.
5450 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5451 sign of the number in question.
5453 Fix BN_is_word(a,w) to work correctly for w == 0.
5455 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5456 because its test if the absolute value of 'a' equals 'w'.
5457 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5458 it exists mostly for use in the implementations of BN_is_zero(),
5459 BN_is_one(), and BN_is_word().
5462 *) New function BN_swap.
5465 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5466 the exponentiation functions are more likely to produce reasonable
5467 results on negative inputs.
5470 *) Change BN_mod_mul so that the result is always non-negative.
5471 Previously, it could be negative if one of the factors was negative;
5472 I don't think anyone really wanted that behaviour.
5475 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5476 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5477 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5478 and add new functions:
5487 BN_mod_lshift1_quick
5491 These functions always generate non-negative results.
5493 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5494 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5496 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5497 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5498 be reduced modulo m.
5499 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5502 The following entry accidentily appeared in the CHANGES file
5503 distributed with OpenSSL 0.9.7. The modifications described in
5504 it do *not* apply to OpenSSL 0.9.7.
5506 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5507 was actually never needed) and in BN_mul(). The removal in BN_mul()
5508 required a small change in bn_mul_part_recursive() and the addition
5509 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5510 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5511 bn_sub_words() and bn_add_words() except they take arrays with
5516 *) In 'openssl passwd', verify passwords read from the terminal
5517 unless the '-salt' option is used (which usually means that
5518 verification would just waste user's time since the resulting
5519 hash is going to be compared with some given password hash)
5520 or the new '-noverify' option is used.
5522 This is an incompatible change, but it does not affect
5523 non-interactive use of 'openssl passwd' (passwords on the command
5524 line, '-stdin' option, '-in ...' option) and thus should not
5528 *) Remove all references to RSAref, since there's no more need for it.
5531 *) Make DSO load along a path given through an environment variable
5532 (SHLIB_PATH) with shl_load().
5535 *) Constify the ENGINE code as a result of BIGNUM constification.
5536 Also constify the RSA code and most things related to it. In a
5537 few places, most notable in the depth of the ASN.1 code, ugly
5538 casts back to non-const were required (to be solved at a later
5542 *) Make it so the openssl application has all engines loaded by default.
5545 *) Constify the BIGNUM routines a little more.
5548 *) Add the following functions:
5550 ENGINE_load_cswift()
5552 ENGINE_load_atalla()
5554 ENGINE_load_builtin_engines()
5556 That way, an application can itself choose if external engines that
5557 are built-in in OpenSSL shall ever be used or not. The benefit is
5558 that applications won't have to be linked with libdl or other dso
5559 libraries unless it's really needed.
5561 Changed 'openssl engine' to load all engines on demand.
5562 Changed the engine header files to avoid the duplication of some
5563 declarations (they differed!).
5566 *) 'openssl engine' can now list capabilities.
5569 *) Better error reporting in 'openssl engine'.
5572 *) Never call load_dh_param(NULL) in s_server.
5575 *) Add engine application. It can currently list engines by name and
5576 identity, and test if they are actually available.
5579 *) Improve RPM specification file by forcing symbolic linking and making
5580 sure the installed documentation is also owned by root.root.
5581 [Damien Miller <djm@mindrot.org>]
5583 *) Give the OpenSSL applications more possibilities to make use of
5584 keys (public as well as private) handled by engines.
5587 *) Add OCSP code that comes from CertCo.
5590 *) Add VMS support for the Rijndael code.
5593 *) Added untested support for Nuron crypto accelerator.
5596 *) Add support for external cryptographic devices. This code was
5597 previously distributed separately as the "engine" branch.
5598 [Geoff Thorpe, Richard Levitte]
5600 *) Rework the filename-translation in the DSO code. It is now possible to
5601 have far greater control over how a "name" is turned into a filename
5602 depending on the operating environment and any oddities about the
5603 different shared library filenames on each system.
5606 *) Support threads on FreeBSD-elf in Configure.
5609 *) Fix for SHA1 assembly problem with MASM: it produces
5610 warnings about corrupt line number information when assembling
5611 with debugging information. This is caused by the overlapping
5613 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5616 NCONF_get_number() has no error checking at all. As a replacement,
5617 NCONF_get_number_e() is defined (_e for "error checking") and is
5618 promoted strongly. The old NCONF_get_number is kept around for
5619 binary backward compatibility.
5620 Make it possible for methods to load from something other than a BIO,
5621 by providing a function pointer that is given a name instead of a BIO.
5622 For example, this could be used to load configuration data from an
5626 *) Fix for non blocking accept BIOs. Added new I/O special reason
5627 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5628 with non blocking I/O was not possible because no retry code was
5629 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5633 *) Added the beginnings of Rijndael support.
5636 *) Fix for bug in DirectoryString mask setting. Add support for
5637 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5638 to allow certificate printing to more controllable, additional
5639 'certopt' option to 'x509' to allow new printing options to be
5643 *) Clean old EAY MD5 hack from e_os.h.
5646 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5648 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5649 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5650 [Joe Orton, Steve Henson]
5652 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5654 *) Fix additional bug revealed by the NISCC test suite:
5656 Stop bug triggering large recursion when presented with
5657 certain ASN.1 tags (CVE-2003-0851)
5660 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5662 *) Fix various bugs revealed by running the NISCC test suite:
5664 Stop out of bounds reads in the ASN1 code when presented with
5665 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5667 If verify callback ignores invalid public key errors don't try to check
5668 certificate signature with the NULL public key.
5672 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5673 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5677 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5678 extra data after the compression methods not only for TLS 1.0
5679 but also for SSL 3.0 (as required by the specification).
5680 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5682 *) Change X509_certificate_type() to mark the key as exported/exportable
5683 when it's 512 *bits* long, not 512 bytes.
5686 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5688 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5689 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5690 a protocol version number mismatch like a decryption error
5691 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5694 *) Turn on RSA blinding by default in the default implementation
5695 to avoid a timing attack. Applications that don't want it can call
5696 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5697 They would be ill-advised to do so in most cases.
5698 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5700 *) Change RSA blinding code so that it works when the PRNG is not
5701 seeded (in this case, the secret RSA exponent is abused as
5702 an unpredictable seed -- if it is not unpredictable, there
5703 is no point in blinding anyway). Make RSA blinding thread-safe
5704 by remembering the creator's thread ID in rsa->blinding and
5705 having all other threads use local one-time blinding factors
5706 (this requires more computation than sharing rsa->blinding, but
5707 avoids excessive locking; and if an RSA object is not shared
5708 between threads, blinding will still be very fast).
5711 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5713 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5714 via timing by performing a MAC computation even if incorrrect
5715 block cipher padding has been found. This is a countermeasure
5716 against active attacks where the attacker has to distinguish
5717 between bad padding and a MAC verification error. (CVE-2003-0078)
5719 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5720 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5721 Martin Vuagnoux (EPFL, Ilion)]
5723 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5725 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5726 memory from it's contents. This is done with a counter that will
5727 place alternating values in each byte. This can be used to solve
5728 two issues: 1) the removal of calls to memset() by highly optimizing
5729 compilers, and 2) cleansing with other values than 0, since those can
5730 be read through on certain media, for example a swap space on disk.
5733 *) Bugfix: client side session caching did not work with external caching,
5734 because the session->cipher setting was not restored when reloading
5735 from the external cache. This problem was masked, when
5736 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5737 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5740 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5741 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5742 [Zeev Lieber <zeev-l@yahoo.com>]
5744 *) Undo an undocumented change introduced in 0.9.6e which caused
5745 repeated calls to OpenSSL_add_all_ciphers() and
5746 OpenSSL_add_all_digests() to be ignored, even after calling
5750 *) Change the default configuration reader to deal with last line not
5751 being properly terminated.
5754 *) Change X509_NAME_cmp() so it applies the special rules on handling
5755 DN values that are of type PrintableString, as well as RDNs of type
5756 emailAddress where the value has the type ia5String.
5757 [stefank@valicert.com via Richard Levitte]
5759 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5760 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5761 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5762 the bitwise-OR of the two for use by the majority of applications
5763 wanting this behaviour, and update the docs. The documented
5764 behaviour and actual behaviour were inconsistent and had been
5765 changing anyway, so this is more a bug-fix than a behavioural
5767 [Geoff Thorpe, diagnosed by Nadav Har'El]
5769 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5770 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5773 *) Fix initialization code race conditions in
5774 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5775 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5776 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5777 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5778 ssl2_get_cipher_by_char(),
5779 ssl3_get_cipher_by_char().
5780 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5782 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5783 the cached sessions are flushed, as the remove_cb() might use ex_data
5784 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5785 (see [openssl.org #212]).
5786 [Geoff Thorpe, Lutz Jaenicke]
5788 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5789 length, instead of the encoding length to d2i_ASN1_OBJECT.
5792 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5794 *) [In 0.9.6g-engine release:]
5795 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5796 [Lynn Gazis <lgazis@rainbow.com>]
5798 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5800 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5801 and get fix the header length calculation.
5802 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5803 Alon Kantor <alonk@checkpoint.com> (and others),
5806 *) Use proper error handling instead of 'assertions' in buffer
5807 overflow checks added in 0.9.6e. This prevents DoS (the
5808 assertions could call abort()).
5809 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5811 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5813 *) Add various sanity checks to asn1_get_length() to reject
5814 the ASN1 length bytes if they exceed sizeof(long), will appear
5815 negative or the content length exceeds the length of the
5817 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5819 *) Fix cipher selection routines: ciphers without encryption had no flags
5820 for the cipher strength set and where therefore not handled correctly
5821 by the selection routines (PR #130).
5824 *) Fix EVP_dsa_sha macro.
5828 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5829 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5830 that was added in OpenSSL 0.9.6d.
5832 As the countermeasure turned out to be incompatible with some
5833 broken SSL implementations, the new option is part of SSL_OP_ALL.
5834 SSL_OP_ALL is usually employed when compatibility with weird SSL
5835 implementations is desired (e.g. '-bugs' option to 's_client' and
5836 's_server'), so the new option is automatically set in many
5840 *) Changes in security patch:
5842 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5843 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5844 Air Force Materiel Command, USAF, under agreement number
5847 *) Add various sanity checks to asn1_get_length() to reject
5848 the ASN1 length bytes if they exceed sizeof(long), will appear
5849 negative or the content length exceeds the length of the
5850 supplied buffer. (CVE-2002-0659)
5851 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5853 *) Assertions for various potential buffer overflows, not known to
5855 [Ben Laurie (CHATS)]
5857 *) Various temporary buffers to hold ASCII versions of integers were
5858 too small for 64 bit platforms. (CVE-2002-0655)
5859 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5861 *) Remote buffer overflow in SSL3 protocol - an attacker could
5862 supply an oversized session ID to a client. (CVE-2002-0656)
5863 [Ben Laurie (CHATS)]
5865 *) Remote buffer overflow in SSL2 protocol - an attacker could
5866 supply an oversized client master key. (CVE-2002-0656)
5867 [Ben Laurie (CHATS)]
5869 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5871 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5872 encoded as NULL) with id-dsa-with-sha1.
5873 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5875 *) Check various X509_...() return values in apps/req.c.
5876 [Nils Larsch <nla@trustcenter.de>]
5878 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5879 an end-of-file condition would erronously be flagged, when the CRLF
5880 was just at the end of a processed block. The bug was discovered when
5881 processing data through a buffering memory BIO handing the data to a
5882 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5883 <ptsekov@syntrex.com> and Nedelcho Stanev.
5886 *) Implement a countermeasure against a vulnerability recently found
5887 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5888 before application data chunks to avoid the use of known IVs
5889 with data potentially chosen by the attacker.
5892 *) Fix length checks in ssl3_get_client_hello().
5895 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5896 to prevent ssl3_read_internal() from incorrectly assuming that
5897 ssl3_read_bytes() found application data while handshake
5898 processing was enabled when in fact s->s3->in_read_app_data was
5899 merely automatically cleared during the initial handshake.
5900 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5902 *) Fix object definitions for Private and Enterprise: they were not
5903 recognized in their shortname (=lowercase) representation. Extend
5904 obj_dat.pl to issue an error when using undefined keywords instead
5905 of silently ignoring the problem (Svenning Sorensen
5906 <sss@sss.dnsalias.net>).
5909 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5910 generators, i.e. generators other than 2 and 5. (Previously, the
5911 code did not properly initialise the 'add' and 'rem' values to
5912 BN_generate_prime().)
5914 In the new general case, we do not insist that 'generator' is
5915 actually a primitive root: This requirement is rather pointless;
5916 a generator of the order-q subgroup is just as good, if not
5920 *) Map new X509 verification errors to alerts. Discovered and submitted by
5921 Tom Wu <tom@arcot.com>.
5924 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5925 returning non-zero before the data has been completely received
5926 when using non-blocking I/O.
5927 [Bodo Moeller; problem pointed out by John Hughes]
5929 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5930 [Ben Laurie, Lutz Jaenicke]
5932 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5933 Yoram Zahavi <YoramZ@gilian.com>).
5936 *) Add information about CygWin 1.3 and on, and preserve proper
5937 configuration for the versions before that.
5938 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5940 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5941 check whether we deal with a copy of a session and do not delete from
5942 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5943 <izhar@checkpoint.com>.
5946 *) Do not store session data into the internal session cache, if it
5947 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5948 flag is set). Proposed by Aslam <aslam@funk.com>.
5951 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5955 *) [In 0.9.6d-engine release:]
5956 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5957 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5959 *) Add the configuration target linux-s390x.
5960 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5962 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5963 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5964 variable as an indication that a ClientHello message has been
5965 received. As the flag value will be lost between multiple
5966 invocations of ssl3_accept when using non-blocking I/O, the
5967 function may not be aware that a handshake has actually taken
5968 place, thus preventing a new session from being added to the
5971 To avoid this problem, we now set s->new_session to 2 instead of
5972 using a local variable.
5973 [Lutz Jaenicke, Bodo Moeller]
5975 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5976 if the SSL_R_LENGTH_MISMATCH error is detected.
5977 [Geoff Thorpe, Bodo Moeller]
5979 *) New 'shared_ldflag' column in Configure platform table.
5982 *) Fix EVP_CIPHER_mode macro.
5983 ["Dan S. Camper" <dan@bti.net>]
5985 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5986 type, we must throw them away by setting rr->length to 0.
5987 [D P Chang <dpc@qualys.com>]
5989 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5991 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5992 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5993 worked incorrectly for those cases where range = 10..._2 and
5994 3*range is two bits longer than range.)
5997 *) Only add signing time to PKCS7 structures if it is not already
6001 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6002 OBJ_ld_ce should be OBJ_id_ce.
6003 Also some ip-pda OIDs in crypto/objects/objects.txt were
6004 incorrect (cf. RFC 3039).
6005 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6007 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6008 returns early because it has nothing to do.
6009 [Andy Schneider <andy.schneider@bjss.co.uk>]
6011 *) [In 0.9.6c-engine release:]
6012 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6013 [Andy Schneider <andy.schneider@bjss.co.uk>]
6015 *) [In 0.9.6c-engine release:]
6016 Add support for Cryptographic Appliance's keyserver technology.
6017 (Use engine 'keyclient')
6018 [Cryptographic Appliances and Geoff Thorpe]
6020 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6021 is called via tools/c89.sh because arguments have to be
6022 rearranged (all '-L' options must appear before the first object
6024 [Richard Shapiro <rshapiro@abinitio.com>]
6026 *) [In 0.9.6c-engine release:]
6027 Add support for Broadcom crypto accelerator cards, backported
6029 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6031 *) [In 0.9.6c-engine release:]
6032 Add support for SureWare crypto accelerator cards from
6033 Baltimore Technologies. (Use engine 'sureware')
6034 [Baltimore Technologies and Mark Cox]
6036 *) [In 0.9.6c-engine release:]
6037 Add support for crypto accelerator cards from Accelerated
6038 Encryption Processing, www.aep.ie. (Use engine 'aep')
6039 [AEP Inc. and Mark Cox]
6041 *) Add a configuration entry for gcc on UnixWare.
6042 [Gary Benson <gbenson@redhat.com>]
6044 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6045 messages are stored in a single piece (fixed-length part and
6046 variable-length part combined) and fix various bugs found on the way.
6049 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6050 instead. BIO_gethostbyname() does not know what timeouts are
6051 appropriate, so entries would stay in cache even when they have
6053 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6055 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6056 faced with a pathologically small ClientHello fragment that does
6057 not contain client_version: Instead of aborting with an error,
6058 simply choose the highest available protocol version (i.e.,
6059 TLS 1.0 unless it is disabled). In practice, ClientHello
6060 messages are never sent like this, but this change gives us
6061 strictly correct behaviour at least for TLS.
6064 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6065 never resets s->method to s->ctx->method when called from within
6066 one of the SSL handshake functions.
6067 [Bodo Moeller; problem pointed out by Niko Baric]
6069 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6070 (sent using the client's version number) if client_version is
6071 smaller than the protocol version in use. Also change
6072 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6073 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6074 the client will at least see that alert.
6077 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6081 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6082 client receives HelloRequest while in a handshake.
6083 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6085 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6086 should end in 'break', not 'goto end' which circuments various
6087 cleanups done in state SSL_ST_OK. But session related stuff
6088 must be disabled for SSL_ST_OK in the case that we just sent a
6091 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6092 before just sending a HelloRequest.
6093 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6095 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6096 reveal whether illegal block cipher padding was found or a MAC
6097 verification error occured. (Neither SSLerr() codes nor alerts
6098 are directly visible to potential attackers, but the information
6099 may leak via logfiles.)
6101 Similar changes are not required for the SSL 2.0 implementation
6102 because the number of padding bytes is sent in clear for SSL 2.0,
6103 and the extra bytes are just ignored. However ssl/s2_pkt.c
6104 failed to verify that the purported number of padding bytes is in
6108 *) Add OpenUNIX-8 support including shared libraries
6109 (Boyd Lynn Gerber <gerberb@zenez.com>).
6112 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6113 'wristwatch attack' using huge encoding parameters (cf.
6114 James H. Manger's CRYPTO 2001 paper). Note that the
6115 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6116 encoding parameters and hence was not vulnerable.
6119 *) BN_sqr() bug fix.
6120 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6122 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6123 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6124 followed by modular reduction.
6125 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6127 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6128 equivalent based on BN_pseudo_rand() instead of BN_rand().
6131 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6132 This function was broken, as the check for a new client hello message
6133 to handle SGC did not allow these large messages.
6134 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6137 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6140 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6141 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6144 *) Rework the configuration and shared library support for Tru64 Unix.
6145 The configuration part makes use of modern compiler features and
6146 still retains old compiler behavior for those that run older versions
6147 of the OS. The shared library support part includes a variant that
6148 uses the RPATH feature, and is available through the special
6149 configuration target "alpha-cc-rpath", which will never be selected
6151 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6153 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6154 with the same message size as in ssl3_get_certificate_request().
6155 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6156 messages might inadvertently be reject as too long.
6157 [Petr Lampa <lampa@fee.vutbr.cz>]
6159 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6162 *) Modified SSL library such that the verify_callback that has been set
6163 specificly for an SSL object with SSL_set_verify() is actually being
6164 used. Before the change, a verify_callback set with this function was
6165 ignored and the verify_callback() set in the SSL_CTX at the time of
6166 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6167 to allow the necessary settings.
6170 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6171 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6172 done automatically (in contradiction to the requirements of the C
6173 standard). This made problems when used from OpenSSH.
6176 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6177 dh->length and always used
6179 BN_rand_range(priv_key, dh->p).
6181 BN_rand_range() is not necessary for Diffie-Hellman, and this
6182 specific range makes Diffie-Hellman unnecessarily inefficient if
6183 dh->length (recommended exponent length) is much smaller than the
6184 length of dh->p. We could use BN_rand_range() if the order of
6185 the subgroup was stored in the DH structure, but we only have
6190 BN_rand(priv_key, l, ...)
6192 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6198 RSA_eay_public_encrypt
6199 RSA_eay_private_decrypt
6200 RSA_eay_private_encrypt (signing)
6201 RSA_eay_public_decrypt (signature verification)
6203 (default implementations for RSA_public_encrypt,
6204 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6205 always reject numbers >= n.
6208 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6209 to synchronize access to 'locking_thread'. This is necessary on
6210 systems where access to 'locking_thread' (an 'unsigned long'
6211 variable) is not atomic.
6214 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6215 *before* setting the 'crypto_lock_rand' flag. The previous code had
6216 a race condition if 0 is a valid thread ID.
6217 [Travis Vitek <vitek@roguewave.com>]
6219 *) Add support for shared libraries under Irix.
6220 [Albert Chin-A-Young <china@thewrittenword.com>]
6222 *) Add configuration option to build on Linux on both big-endian and
6224 [Ralf Baechle <ralf@uni-koblenz.de>]
6226 *) Add the possibility to create shared libraries on HP-UX.
6229 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6231 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6232 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6233 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6234 PRNG state recovery was possible based on the output of
6235 one PRNG request appropriately sized to gain knowledge on
6236 'md' followed by enough consecutive 1-byte PRNG requests
6237 to traverse all of 'state'.
6239 1. When updating 'md_local' (the current thread's copy of 'md')
6240 during PRNG output generation, hash all of the previous
6241 'md_local' value, not just the half used for PRNG output.
6243 2. Make the number of bytes from 'state' included into the hash
6244 independent from the number of PRNG bytes requested.
6246 The first measure alone would be sufficient to avoid
6247 Markku-Juhani's attack. (Actually it had never occurred
6248 to me that the half of 'md_local' used for chaining was the
6249 half from which PRNG output bytes were taken -- I had always
6250 assumed that the secret half would be used.) The second
6251 measure makes sure that additional data from 'state' is never
6252 mixed into 'md_local' in small portions; this heuristically
6253 further strengthens the PRNG.
6256 *) Fix crypto/bn/asm/mips3.s.
6259 *) When only the key is given to "enc", the IV is undefined. Print out
6260 an error message in this case.
6263 *) Handle special case when X509_NAME is empty in X509 printing routines.
6266 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6267 positive and less than q.
6270 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6271 used: it isn't thread safe and the add_lock_callback should handle
6273 [Paul Rose <Paul.Rose@bridge.com>]
6275 *) Verify that incoming data obeys the block size in
6276 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6280 [Ulf Möller, Bodo Möller]
6282 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6283 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6284 when fixing the server behaviour for backwards-compatible 'client
6285 hello' messages. (Note that the attack is impractical against
6286 SSL 3.0 and TLS 1.0 anyway because length and version checking
6287 means that the probability of guessing a valid ciphertext is
6288 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6291 Before 0.9.5, the countermeasure (hide the error by generating a
6292 random 'decryption result') did not work properly because
6293 ERR_clear_error() was missing, meaning that SSL_get_error() would
6294 detect the supposedly ignored error.
6296 Both problems are now fixed.
6299 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6300 (previously it was 1024).
6303 *) Fix for compatibility mode trust settings: ignore trust settings
6304 unless some valid trust or reject settings are present.
6307 *) Fix for blowfish EVP: its a variable length cipher.
6310 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6311 parameters in DSA public key structures and return an error in the
6312 DSA routines if parameters are absent.
6315 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6316 in the current directory if neither $RANDFILE nor $HOME was set.
6317 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6318 caused some confusion to Windows users who haven't defined $HOME.
6319 Thus RAND_file_name() is changed again: e_os.h can define a
6320 DEFAULT_HOME, which will be used if $HOME is not set.
6321 For Windows, we use "C:"; on other platforms, we still require
6322 environment variables.
6324 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6325 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6326 having multiple threads call RAND_poll() concurrently.
6329 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6330 combination of a flag and a thread ID variable.
6331 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6332 flag), *other* threads can enter ssleay_add_bytes without obeying
6333 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6334 that they do not hold after the first thread unsets add_do_not_lock).
6337 *) Change bctest again: '-x' expressions are not available in all
6341 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6343 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6344 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6346 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6347 the default extension for executables, if any. Also, make the perl
6348 scripts that use symlink() to test if it really exists and use "cp"
6349 if it doesn't. All this made OpenSSL compilable and installable in
6353 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6354 If SEQUENCE is length is indefinite just set c->slen to the total
6355 amount of data available.
6356 [Steve Henson, reported by shige@FreeBSD.org]
6357 [This change does not apply to 0.9.7.]
6359 *) Change bctest to avoid here-documents inside command substitution
6360 (workaround for FreeBSD /bin/sh bug).
6361 For compatibility with Ultrix, avoid shell functions (introduced
6362 in the bctest version that searches along $PATH).
6365 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6366 with des_encrypt() defined on some operating systems, like Solaris
6370 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6371 On the Importance of Eliminating Errors in Cryptographic
6372 Computations, J. Cryptology 14 (2001) 2, 101-119,
6373 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6376 *) MIPS assembler BIGNUM division bug fix.
6379 *) Disabled incorrect Alpha assembler code.
6382 *) Fix PKCS#7 decode routines so they correctly update the length
6383 after reading an EOC for the EXPLICIT tag.
6385 [This change does not apply to 0.9.7.]
6387 *) Fix bug in PKCS#12 key generation routines. This was triggered
6388 if a 3DES key was generated with a 0 initial byte. Include
6389 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6390 (but broken) behaviour.
6393 *) Enhance bctest to search for a working bc along $PATH and print
6395 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6397 *) Fix memory leaks in err.c: free err_data string if necessary;
6398 don't write to the wrong index in ERR_set_error_data.
6401 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6405 *) Replace rdtsc with _emit statements for VC++ version 5.
6406 [Jeremy Cooper <jeremy@baymoo.org>]
6408 *) Make it possible to reuse SSLv2 sessions.
6411 *) In copy_email() check for >= 0 as a return value for
6412 X509_NAME_get_index_by_NID() since 0 is a valid index.
6413 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6415 *) Avoid coredump with unsupported or invalid public keys by checking if
6416 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6417 PKCS7_verify() fails with non detached data.
6420 *) Don't use getenv in library functions when run as setuid/setgid.
6421 New function OPENSSL_issetugid().
6424 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6425 due to incorrect handling of multi-threading:
6427 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6429 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6431 3. Count how many times MemCheck_off() has been called so that
6432 nested use can be treated correctly. This also avoids
6433 inband-signalling in the previous code (which relied on the
6434 assumption that thread ID 0 is impossible).
6437 *) Add "-rand" option also to s_client and s_server.
6440 *) Fix CPU detection on Irix 6.x.
6441 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6442 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6444 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6447 [This change does not apply to 0.9.7.]
6449 *) Use the cached encoding of an X509_NAME structure rather than
6450 copying it. This is apparently the reason for the libsafe "errors"
6451 but the code is actually correct.
6454 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6455 Bleichenbacher's DSA attack.
6456 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6457 to be set and top=0 forces the highest bit to be set; top=-1 is new
6458 and leaves the highest bit random.
6459 [Ulf Moeller, Bodo Moeller]
6461 *) In the NCONF_...-based implementations for CONF_... queries
6462 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6463 a temporary CONF structure with the data component set to NULL
6464 (which gives segmentation faults in lh_retrieve).
6465 Instead, use NULL for the CONF pointer in CONF_get_string and
6466 CONF_get_number (which may use environment variables) and directly
6467 return NULL from CONF_get_section.
6470 *) Fix potential buffer overrun for EBCDIC.
6473 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6474 keyUsage if basicConstraints absent for a CA.
6477 *) Make SMIME_write_PKCS7() write mail header values with a format that
6478 is more generally accepted (no spaces before the semicolon), since
6479 some programs can't parse those values properly otherwise. Also make
6480 sure BIO's that break lines after each write do not create invalid
6484 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6485 macros previously used would not encode an empty SEQUENCE OF
6486 and break the signature.
6488 [This change does not apply to 0.9.7.]
6490 *) Zero the premaster secret after deriving the master secret in
6494 *) Add some EVP_add_digest_alias registrations (as found in
6495 OpenSSL_add_all_digests()) to SSL_library_init()
6496 aka OpenSSL_add_ssl_algorithms(). This provides improved
6497 compatibility with peers using X.509 certificates
6498 with unconventional AlgorithmIdentifier OIDs.
6501 *) Fix for Irix with NO_ASM.
6502 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6504 *) ./config script fixes.
6505 [Ulf Moeller, Richard Levitte]
6507 *) Fix 'openssl passwd -1'.
6510 *) Change PKCS12_key_gen_asc() so it can cope with non null
6511 terminated strings whose length is passed in the passlen
6512 parameter, for example from PEM callbacks. This was done
6513 by adding an extra length parameter to asc2uni().
6514 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6516 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6517 call failed, free the DSA structure.
6520 *) Fix to uni2asc() to cope with zero length Unicode strings.
6521 These are present in some PKCS#12 files.
6524 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6525 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6526 when writing a 32767 byte record.
6527 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6529 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6530 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6532 (RSA objects have a reference count access to which is protected
6533 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6534 so they are meant to be shared between threads.)
6535 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6536 "Reddie, Steven" <Steven.Reddie@ca.com>]
6538 *) Fix a deadlock in CRYPTO_mem_leaks().
6541 *) Use better test patterns in bntest.
6544 *) rand_win.c fix for Borland C.
6547 *) BN_rshift bugfix for n == 0.
6550 *) Add a 'bctest' script that checks for some known 'bc' bugs
6551 so that 'make test' does not abort just because 'bc' is broken.
6554 *) Store verify_result within SSL_SESSION also for client side to
6555 avoid potential security hole. (Re-used sessions on the client side
6556 always resulted in verify_result==X509_V_OK, not using the original
6557 result of the server certificate verification.)
6560 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6561 SSL3_RT_APPLICATION_DATA, return 0.
6562 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6566 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6567 releases, have been re-implemented by renaming the previous
6568 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6569 and ssl3_read_internal, respectively, and adding 'peek' parameters
6570 to them. The new ssl[23]_{read,peek} functions are calls to
6571 ssl[23]_read_internal with the 'peek' flag set appropriately.
6572 A 'peek' parameter has also been added to ssl3_read_bytes, which
6573 does the actual work for ssl3_read_internal.
6576 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6577 the method-specific "init()" handler. Also clean up ex_data after
6578 calling the method-specific "finish()" handler. Previously, this was
6579 happening the other way round.
6582 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6583 The previous value, 12, was not always sufficient for BN_mod_exp().
6586 *) Make sure that shared libraries get the internal name engine with
6587 the full version number and not just 0. This should mark the
6588 shared libraries as not backward compatible. Of course, this should
6589 be changed again when we can guarantee backward binary compatibility.
6592 *) Fix typo in get_cert_by_subject() in by_dir.c
6593 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6595 *) Rework the system to generate shared libraries:
6597 - Make note of the expected extension for the shared libraries and
6598 if there is a need for symbolic links from for example libcrypto.so.0
6599 to libcrypto.so.0.9.7. There is extended info in Configure for
6602 - Make as few rebuilds of the shared libraries as possible.
6604 - Still avoid linking the OpenSSL programs with the shared libraries.
6606 - When installing, install the shared libraries separately from the
6610 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6612 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6613 and not in SSL_clear because the latter is also used by the
6614 accept/connect functions; previously, the settings made by
6615 SSL_set_read_ahead would be lost during the handshake.
6616 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6618 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6619 Previously, it would create entries for disableed algorithms no
6623 *) Added several new manual pages for SSL_* function.
6626 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6628 *) In ssl23_get_client_hello, generate an error message when faced
6629 with an initial SSL 3.0/TLS record that is too small to contain the
6630 first two bytes of the ClientHello message, i.e. client_version.
6631 (Note that this is a pathologic case that probably has never happened
6632 in real life.) The previous approach was to use the version number
6633 from the record header as a substitute; but our protocol choice
6634 should not depend on that one because it is not authenticated
6635 by the Finished messages.
6638 *) More robust randomness gathering functions for Windows.
6639 [Jeffrey Altman <jaltman@columbia.edu>]
6641 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6642 not set then we don't setup the error code for issuer check errors
6643 to avoid possibly overwriting other errors which the callback does
6644 handle. If an application does set the flag then we assume it knows
6645 what it is doing and can handle the new informational codes
6649 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6650 a general "ANY" type, as such it should be able to decode anything
6651 including tagged types. However it didn't check the class so it would
6652 wrongly interpret tagged types in the same way as their universal
6653 counterpart and unknown types were just rejected. Changed so that the
6654 tagged and unknown types are handled in the same way as a SEQUENCE:
6655 that is the encoding is stored intact. There is also a new type
6656 "V_ASN1_OTHER" which is used when the class is not universal, in this
6657 case we have no idea what the actual type is so we just lump them all
6661 *) On VMS, stdout may very well lead to a file that is written to
6662 in a record-oriented fashion. That means that every write() will
6663 write a separate record, which will be read separately by the
6664 programs trying to read from it. This can be very confusing.
6666 The solution is to put a BIO filter in the way that will buffer
6667 text until a linefeed is reached, and then write everything a
6668 line at a time, so every record written will be an actual line,
6669 not chunks of lines and not (usually doesn't happen, but I've
6670 seen it once) several lines in one record. BIO_f_linebuffer() is
6673 Currently, it's a VMS-only method, because that's where it has
6674 been tested well enough.
6677 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6678 it can return incorrect results.
6679 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6680 but it was in 0.9.6-beta[12].)
6683 *) Disable the check for content being present when verifying detached
6684 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6685 include zero length content when signing messages.
6688 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6689 BIO_ctrl (for BIO pairs).
6692 *) Add DSO method for VMS.
6695 *) Bug fix: Montgomery multiplication could produce results with the
6699 *) Add RPM specification openssl.spec and modify it to build three
6700 packages. The default package contains applications, application
6701 documentation and run-time libraries. The devel package contains
6702 include files, static libraries and function documentation. The
6703 doc package contains the contents of the doc directory. The original
6704 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6707 *) Add a large number of documentation files for many SSL routines.
6708 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6710 *) Add a configuration entry for Sony News 4.
6711 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6713 *) Don't set the two most significant bits to one when generating a
6714 random number < q in the DSA library.
6717 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6718 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6719 the underlying transport is blocking) if a handshake took place.
6720 (The default behaviour is needed by applications such as s_client
6721 and s_server that use select() to determine when to use SSL_read;
6722 but for applications that know in advance when to expect data, it
6723 just makes things more complicated.)
6726 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6730 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6731 work better on such systems.
6732 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6734 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6735 Update PKCS12_parse() so it copies the friendlyName and the
6736 keyid to the certificates aux info.
6739 *) Fix bug in PKCS7_verify() which caused an infinite loop
6740 if there was more than one signature.
6741 [Sven Uszpelkat <su@celocom.de>]
6743 *) Major change in util/mkdef.pl to include extra information
6744 about each symbol, as well as presentig variables as well
6745 as functions. This change means that there's n more need
6746 to rebuild the .num files when some algorithms are excluded.
6749 *) Allow the verify time to be set by an application,
6750 rather than always using the current time.
6753 *) Phase 2 verify code reorganisation. The certificate
6754 verify code now looks up an issuer certificate by a
6755 number of criteria: subject name, authority key id
6756 and key usage. It also verifies self signed certificates
6757 by the same criteria. The main comparison function is
6758 X509_check_issued() which performs these checks.
6760 Lot of changes were necessary in order to support this
6761 without completely rewriting the lookup code.
6763 Authority and subject key identifier are now cached.
6765 The LHASH 'certs' is X509_STORE has now been replaced
6766 by a STACK_OF(X509_OBJECT). This is mainly because an
6767 LHASH can't store or retrieve multiple objects with
6768 the same hash value.
6770 As a result various functions (which were all internal
6771 use only) have changed to handle the new X509_STORE
6772 structure. This will break anything that messed round
6773 with X509_STORE internally.
6775 The functions X509_STORE_add_cert() now checks for an
6776 exact match, rather than just subject name.
6778 The X509_STORE API doesn't directly support the retrieval
6779 of multiple certificates matching a given criteria, however
6780 this can be worked round by performing a lookup first
6781 (which will fill the cache with candidate certificates)
6782 and then examining the cache for matches. This is probably
6783 the best we can do without throwing out X509_LOOKUP
6784 entirely (maybe later...).
6786 The X509_VERIFY_CTX structure has been enhanced considerably.
6788 All certificate lookup operations now go via a get_issuer()
6789 callback. Although this currently uses an X509_STORE it
6790 can be replaced by custom lookups. This is a simple way
6791 to bypass the X509_STORE hackery necessary to make this
6792 work and makes it possible to use more efficient techniques
6793 in future. A very simple version which uses a simple
6794 STACK for its trusted certificate store is also provided
6795 using X509_STORE_CTX_trusted_stack().
6797 The verify_cb() and verify() callbacks now have equivalents
6798 in the X509_STORE_CTX structure.
6800 X509_STORE_CTX also has a 'flags' field which can be used
6801 to customise the verify behaviour.
6804 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6805 excludes S/MIME capabilities.
6808 *) When a certificate request is read in keep a copy of the
6809 original encoding of the signed data and use it when outputing
6810 again. Signatures then use the original encoding rather than
6811 a decoded, encoded version which may cause problems if the
6812 request is improperly encoded.
6815 *) For consistency with other BIO_puts implementations, call
6816 buffer_write(b, ...) directly in buffer_puts instead of calling
6819 In BIO_puts, increment b->num_write as in BIO_write.
6820 [Peter.Sylvester@EdelWeb.fr]
6822 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6823 BN_zero, we may not return a BIGNUM with an array consisting of
6827 *) Avoid calling abort() from within the library when problems are
6828 detected, except if preprocessor symbols have been defined
6829 (such as REF_CHECK, BN_DEBUG etc.).
6832 *) New openssl application 'rsautl'. This utility can be
6833 used for low level RSA operations. DER public key
6834 BIO/fp routines also added.
6837 *) New Configure entry and patches for compiling on QNX 4.
6838 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6840 *) A demo state-machine implementation was sponsored by
6841 Nuron (http://www.nuron.com/) and is now available in
6842 demos/state_machine.
6845 *) New options added to the 'dgst' utility for signature
6846 generation and verification.
6849 *) Unrecognized PKCS#7 content types are now handled via a
6850 catch all ASN1_TYPE structure. This allows unsupported
6851 types to be stored as a "blob" and an application can
6852 encode and decode it manually.
6855 *) Fix various signed/unsigned issues to make a_strex.c
6857 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6859 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6860 length if passed a buffer. ASN1_INTEGER_to_BN failed
6861 if passed a NULL BN and its argument was negative.
6862 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6864 *) Modification to PKCS#7 encoding routines to output definite
6865 length encoding. Since currently the whole structures are in
6866 memory there's not real point in using indefinite length
6867 constructed encoding. However if OpenSSL is compiled with
6868 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6871 *) Added BIO_vprintf() and BIO_vsnprintf().
6874 *) Added more prefixes to parse for in the the strings written
6875 through a logging bio, to cover all the levels that are available
6876 through syslog. The prefixes are now:
6878 PANIC, EMERG, EMR => LOG_EMERG
6879 ALERT, ALR => LOG_ALERT
6880 CRIT, CRI => LOG_CRIT
6881 ERROR, ERR => LOG_ERR
6882 WARNING, WARN, WAR => LOG_WARNING
6883 NOTICE, NOTE, NOT => LOG_NOTICE
6884 INFO, INF => LOG_INFO
6885 DEBUG, DBG => LOG_DEBUG
6887 and as before, if none of those prefixes are present at the
6888 beginning of the string, LOG_ERR is chosen.
6890 On Win32, the LOG_* levels are mapped according to this:
6892 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6893 LOG_WARNING => EVENTLOG_WARNING_TYPE
6894 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6898 *) Made it possible to reconfigure with just the configuration
6899 argument "reconf" or "reconfigure". The command line arguments
6900 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6901 and are retrieved from there when reconfiguring.
6905 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6907 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6910 *) The obj_dat.pl script was messing up the sorting of object
6911 names. The reason was that it compared the quoted version
6912 of strings as a result "OCSP" > "OCSP Signing" because
6913 " > SPACE. Changed script to store unquoted versions of
6914 names and add quotes on output. It was also omitting some
6915 names from the lookup table if they were given a default
6916 value (that is if SN is missing it is given the same
6917 value as LN and vice versa), these are now added on the
6918 grounds that if an object has a name we should be able to
6919 look it up. Finally added warning output when duplicate
6920 short or long names are found.
6923 *) Changes needed for Tandem NSK.
6924 [Scott Uroff <scott@xypro.com>]
6926 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6927 RSA_padding_check_SSLv23(), special padding was never detected
6928 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6929 version rollback attacks was not effective.
6931 In s23_clnt.c, don't use special rollback-attack detection padding
6932 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6933 client; similarly, in s23_srvr.c, don't do the rollback check if
6934 SSL 2.0 is the only protocol enabled in the server.
6937 *) Make it possible to get hexdumps of unprintable data with 'openssl
6938 asn1parse'. By implication, the functions ASN1_parse_dump() and
6939 BIO_dump_indent() are added.
6942 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6943 these print out strings and name structures based on various
6944 flags including RFC2253 support and proper handling of
6945 multibyte characters. Added options to the 'x509' utility
6946 to allow the various flags to be set.
6949 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6950 Also change the functions X509_cmp_current_time() and
6951 X509_gmtime_adj() work with an ASN1_TIME structure,
6952 this will enable certificates using GeneralizedTime in validity
6953 dates to be checked.
6956 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6957 negative public key encodings) on by default,
6958 NO_NEG_PUBKEY_BUG can be set to disable it.
6961 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6962 content octets. An i2c_ASN1_OBJECT is unnecessary because
6963 the encoding can be trivially obtained from the structure.
6966 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6967 not read locks (CRYPTO_r_[un]lock).
6970 *) A first attempt at creating official support for shared
6971 libraries through configuration. I've kept it so the
6972 default is static libraries only, and the OpenSSL programs
6973 are always statically linked for now, but there are
6974 preparations for dynamic linking in place.
6975 This has been tested on Linux and Tru64.
6978 *) Randomness polling function for Win9x, as described in:
6979 Peter Gutmann, Software Generation of Practically Strong
6983 *) Fix so PRNG is seeded in req if using an already existing
6987 *) New options to smime application. -inform and -outform
6988 allow alternative formats for the S/MIME message including
6989 PEM and DER. The -content option allows the content to be
6990 specified separately. This should allow things like Netscape
6991 form signing output easier to verify.
6994 *) Fix the ASN1 encoding of tags using the 'long form'.
6997 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6998 STRING types. These convert content octets to and from the
6999 underlying type. The actual tag and length octets are
7000 already assumed to have been read in and checked. These
7001 are needed because all other string types have virtually
7002 identical handling apart from the tag. By having versions
7003 of the ASN1 functions that just operate on content octets
7004 IMPLICIT tagging can be handled properly. It also allows
7005 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7006 and ASN1_INTEGER are identical apart from the tag.
7009 *) Change the handling of OID objects as follows:
7011 - New object identifiers are inserted in objects.txt, following
7012 the syntax given in objects.README.
7013 - objects.pl is used to process obj_mac.num and create a new
7015 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7018 This is currently kind of a hack, and the perl code in objects.pl
7019 isn't very elegant, but it works as I intended. The simplest way
7020 to check that it worked correctly is to look in obj_dat.h and
7021 check the array nid_objs and make sure the objects haven't moved
7022 around (this is important!). Additions are OK, as well as
7023 consistent name changes.
7026 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7029 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7030 The given file adds to whatever has already been seeded into the
7031 random pool through the RANDFILE configuration file option or
7032 environment variable, or the default random state file.
7035 *) mkstack.pl now sorts each macro group into lexical order.
7036 Previously the output order depended on the order the files
7037 appeared in the directory, resulting in needless rewriting
7041 *) Patches to make OpenSSL compile under Win32 again. Mostly
7042 work arounds for the VC++ problem that it treats func() as
7043 func(void). Also stripped out the parts of mkdef.pl that
7044 added extra typesafe functions: these no longer exist.
7047 *) Reorganisation of the stack code. The macros are now all
7048 collected in safestack.h . Each macro is defined in terms of
7049 a "stack macro" of the form SKM_<name>(type, a, b). The
7050 DEBUG_SAFESTACK is now handled in terms of function casts,
7051 this has the advantage of retaining type safety without the
7052 use of additional functions. If DEBUG_SAFESTACK is not defined
7053 then the non typesafe macros are used instead. Also modified the
7054 mkstack.pl script to handle the new form. Needs testing to see
7055 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7056 the default if no major problems. Similar behaviour for ASN1_SET_OF
7057 and PKCS12_STACK_OF.
7060 *) When some versions of IIS use the 'NET' form of private key the
7061 key derivation algorithm is different. Normally MD5(password) is
7062 used as a 128 bit RC4 key. In the modified case
7063 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7064 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7065 as the old Netscape_RSA functions except they have an additional
7066 'sgckey' parameter which uses the modified algorithm. Also added
7067 an -sgckey command line option to the rsa utility. Thanks to
7068 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7069 algorithm to openssl-dev.
7072 *) The evp_local.h macros were using 'c.##kname' which resulted in
7073 invalid expansion on some systems (SCO 5.0.5 for example).
7074 Corrected to 'c.kname'.
7075 [Phillip Porch <root@theporch.com>]
7077 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7078 a STACK of email addresses from a certificate or request, these look
7079 in the subject name and the subject alternative name extensions and
7080 omit any duplicate addresses.
7083 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7084 This makes DSA verification about 2 % faster.
7087 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7088 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7089 plus overhead for 1024 bit moduli).
7090 This makes exponentiations about 0.5 % faster for 1024 bit
7091 exponents (as measured by "openssl speed rsa2048").
7094 *) Rename memory handling macros to avoid conflicts with other
7096 Malloc => OPENSSL_malloc
7097 Malloc_locked => OPENSSL_malloc_locked
7098 Realloc => OPENSSL_realloc
7099 Free => OPENSSL_free
7102 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7103 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7106 *) CygWin32 support.
7107 [John Jarvie <jjarvie@newsguy.com>]
7109 *) The type-safe stack code has been rejigged. It is now only compiled
7110 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7111 by default all type-specific stack functions are "#define"d back to
7112 standard stack functions. This results in more streamlined output
7113 but retains the type-safety checking possibilities of the original
7117 *) The STACK code has been cleaned up, and certain type declarations
7118 that didn't make a lot of sense have been brought in line. This has
7119 also involved a cleanup of sorts in safestack.h to more correctly
7120 map type-safe stack functions onto their plain stack counterparts.
7121 This work has also resulted in a variety of "const"ifications of
7122 lots of the code, especially "_cmp" operations which should normally
7123 be prototyped with "const" parameters anyway.
7126 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7127 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7128 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7129 where all of 'md' is used each time the PRNG is used, but 'state'
7130 is used only indexed by a cyclic counter. As entropy may not be
7131 well distributed from the beginning, 'md' is important as a
7132 chaining variable. However, the output function chains only half
7133 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7134 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7135 in all of 'state' being rewritten, with the new values depending
7136 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7139 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7140 the handshake is continued after ssl_verify_cert_chain();
7141 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7142 can lead to 'unexplainable' connection aborts later.
7143 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7145 *) Major EVP API cipher revision.
7146 Add hooks for extra EVP features. This allows various cipher
7147 parameters to be set in the EVP interface. Support added for variable
7148 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7149 setting of RC2 and RC5 parameters.
7151 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7154 Remove lots of duplicated code from the EVP library. For example *every*
7155 cipher init() function handles the 'iv' in the same way according to the
7156 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7157 for CFB and OFB modes they zero ctx->num.
7159 New functionality allows removal of S/MIME code RC2 hack.
7161 Most of the routines have the same form and so can be declared in terms
7164 By shifting this to the top level EVP_CipherInit() it can be removed from
7165 all individual ciphers. If the cipher wants to handle IVs or keys
7166 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7169 Change lots of functions like EVP_EncryptUpdate() to now return a
7170 value: although software versions of the algorithms cannot fail
7171 any installed hardware versions can.
7174 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7175 this option is set, tolerate broken clients that send the negotiated
7176 protocol version number instead of the requested protocol version
7180 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7181 i.e. non-zero for export ciphersuites, zero otherwise.
7182 Previous versions had this flag inverted, inconsistent with
7183 rsa_tmp_cb (..._TMP_RSA_CB).
7184 [Bodo Moeller; problem reported by Amit Chopra]
7186 *) Add missing DSA library text string. Work around for some IIS
7187 key files with invalid SEQUENCE encoding.
7190 *) Add a document (doc/standards.txt) that list all kinds of standards
7191 and so on that are implemented in OpenSSL.
7194 *) Enhance c_rehash script. Old version would mishandle certificates
7195 with the same subject name hash and wouldn't handle CRLs at all.
7196 Added -fingerprint option to crl utility, to support new c_rehash
7200 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7203 *) Fix for SSL server purpose checking. Server checking was
7204 rejecting certificates which had extended key usage present
7205 but no ssl client purpose.
7206 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7208 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7209 is a little unclear about how a blank password is handled.
7210 Since the password in encoded as a BMPString with terminating
7211 double NULL a zero length password would end up as just the
7212 double NULL. However no password at all is different and is
7213 handled differently in the PKCS#12 key generation code. NS
7214 treats a blank password as zero length. MSIE treats it as no
7215 password on export: but it will try both on import. We now do
7216 the same: PKCS12_parse() tries zero length and no password if
7217 the password is set to "" or NULL (NULL is now a valid password:
7218 it wasn't before) as does the pkcs12 application.
7221 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7222 perror when PEM_read_bio_X509_REQ fails, the error message must
7223 be obtained from the error queue.
7226 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7227 it in ERR_remove_state if appropriate, and change ERR_get_state
7228 accordingly to avoid race conditions (this is necessary because
7229 thread_hash is no longer constant once set).
7232 *) Bugfix for linux-elf makefile.one.
7235 *) RSA_get_default_method() will now cause a default
7236 RSA_METHOD to be chosen if one doesn't exist already.
7237 Previously this was only set during a call to RSA_new()
7238 or RSA_new_method(NULL) meaning it was possible for
7239 RSA_get_default_method() to return NULL.
7242 *) Added native name translation to the existing DSO code
7243 that will convert (if the flag to do so is set) filenames
7244 that are sufficiently small and have no path information
7245 into a canonical native form. Eg. "blah" converted to
7246 "libblah.so" or "blah.dll" etc.
7249 *) New function ERR_error_string_n(e, buf, len) which is like
7250 ERR_error_string(e, buf), but writes at most 'len' bytes
7251 including the 0 terminator. For ERR_error_string_n, 'buf'
7253 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7255 *) CONF library reworked to become more general. A new CONF
7256 configuration file reader "class" is implemented as well as a
7257 new functions (NCONF_*, for "New CONF") to handle it. The now
7258 old CONF_* functions are still there, but are reimplemented to
7259 work in terms of the new functions. Also, a set of functions
7260 to handle the internal storage of the configuration data is
7261 provided to make it easier to write new configuration file
7262 reader "classes" (I can definitely see something reading a
7263 configuration file in XML format, for example), called _CONF_*,
7264 or "the configuration storage API"...
7266 The new configuration file reading functions are:
7268 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7269 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7271 NCONF_default, NCONF_WIN32
7273 NCONF_dump_fp, NCONF_dump_bio
7275 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7276 NCONF_new creates a new CONF object. This works in the same way
7277 as other interfaces in OpenSSL, like the BIO interface.
7278 NCONF_dump_* dump the internal storage of the configuration file,
7279 which is useful for debugging. All other functions take the same
7280 arguments as the old CONF_* functions wth the exception of the
7281 first that must be a `CONF *' instead of a `LHASH *'.
7283 To make it easer to use the new classes with the old CONF_* functions,
7284 the function CONF_set_default_method is provided.
7287 *) Add '-tls1' option to 'openssl ciphers', which was already
7288 mentioned in the documentation but had not been implemented.
7289 (This option is not yet really useful because even the additional
7290 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7293 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7294 OpenSSL-based applications) load shared libraries and bind to
7295 them in a portable way.
7296 [Geoff Thorpe, with contributions from Richard Levitte]
7298 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7300 *) Make sure _lrotl and _lrotr are only used with MSVC.
7302 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7303 (the default implementation of RAND_status).
7305 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7306 to '-clrext' (= clear extensions), as intended and documented.
7307 [Bodo Moeller; inconsistency pointed out by Michael Attili
7310 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7311 was larger than the MD block size.
7312 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7314 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7315 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7316 using the passed key: if the passed key was a private key the result
7317 of X509_print(), for example, would be to print out all the private key
7321 *) des_quad_cksum() byte order bug fix.
7322 [Ulf Möller, using the problem description in krb4-0.9.7, where
7323 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7325 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7327 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7329 *) For easily testing in shell scripts whether some command
7330 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7331 returns with exit code 0 iff no command of the given name is available.
7332 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7333 the output goes to stdout and nothing is printed to stderr.
7334 Additional arguments are always ignored.
7336 Since for each cipher there is a command of the same name,
7337 the 'no-cipher' compilation switches can be tested this way.
7339 ('openssl no-XXX' is not able to detect pseudo-commands such
7340 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7343 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7346 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7347 is set; it will be thrown away anyway because each handshake creates
7349 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7350 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7351 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7352 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7355 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7356 'Q' and 'R' lose their special meanings (quit/renegotiate).
7357 This is part of what -quiet does; unlike -quiet, -ign_eof
7358 does not suppress any output.
7361 *) Add compatibility options to the purpose and trust code. The
7362 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7363 accepts a certificate or CA, this was the previous behaviour,
7364 with all the associated security issues.
7366 X509_TRUST_COMPAT is the old trust behaviour: only and
7367 automatically trust self signed roots in certificate store. A
7368 new trust setting X509_TRUST_DEFAULT is used to specify that
7369 a purpose has no associated trust setting and it should instead
7370 use the value in the default purpose.
7373 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7374 and fix a memory leak.
7377 *) In util/mkerr.pl (which implements 'make errors'), preserve
7378 reason strings from the previous version of the .c file, as
7379 the default to have only downcase letters (and digits) in
7380 automatically generated reasons codes is not always appropriate.
7383 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7384 using strerror. Previously, ERR_reason_error_string() returned
7385 library names as reason strings for SYSerr; but SYSerr is a special
7386 case where small numbers are errno values, not library numbers.
7389 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7390 converts DSA parameters into DH parameters. (When creating parameters,
7391 DSA_generate_parameters is used.)
7394 *) Include 'length' (recommended exponent length) in C code generated
7395 by 'openssl dhparam -C'.
7398 *) The second argument to set_label in perlasm was already being used
7399 so couldn't be used as a "file scope" flag. Moved to third argument
7403 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7404 instead of RAND_bytes for encryption IVs and salts.
7407 *) Include RAND_status() into RAND_METHOD instead of implementing
7408 it only for md_rand.c Otherwise replacing the PRNG by calling
7409 RAND_set_rand_method would be impossible.
7412 *) Don't let DSA_generate_key() enter an infinite loop if the random
7413 number generation fails.
7416 *) New 'rand' application for creating pseudo-random output.
7419 *) Added configuration support for Linux/IA64
7420 [Rolf Haberrecker <rolf@suse.de>]
7422 *) Assembler module support for Mingw32.
7425 *) Shared library support for HPUX (in shlib/).
7426 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7428 *) Shared library support for Solaris gcc.
7429 [Lutz Behnke <behnke@trustcenter.de>]
7431 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7433 *) PKCS7_encrypt() was adding text MIME headers twice because they
7434 were added manually and by SMIME_crlf_copy().
7437 *) In bntest.c don't call BN_rand with zero bits argument.
7438 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7440 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7441 case was implemented. This caused BN_div_recp() to fail occasionally.
7444 *) Add an optional second argument to the set_label() in the perl
7445 assembly language builder. If this argument exists and is set
7446 to 1 it signals that the assembler should use a symbol whose
7447 scope is the entire file, not just the current function. This
7448 is needed with MASM which uses the format label:: for this scope.
7449 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7451 *) Change the ASN1 types so they are typedefs by default. Before
7452 almost all types were #define'd to ASN1_STRING which was causing
7453 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7457 *) Change names of new functions to the new get1/get0 naming
7458 convention: After 'get1', the caller owns a reference count
7459 and has to call ..._free; 'get0' returns a pointer to some
7460 data structure without incrementing reference counters.
7461 (Some of the existing 'get' functions increment a reference
7462 counter, some don't.)
7463 Similarly, 'set1' and 'add1' functions increase reference
7464 counters or duplicate objects.
7467 *) Allow for the possibility of temp RSA key generation failure:
7468 the code used to assume it always worked and crashed on failure.
7471 *) Fix potential buffer overrun problem in BIO_printf().
7472 [Ulf Möller, using public domain code by Patrick Powell; problem
7473 pointed out by David Sacerdote <das33@cornell.edu>]
7475 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7476 RAND_egd() and RAND_status(). In the command line application,
7477 the EGD socket can be specified like a seed file using RANDFILE
7481 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7482 Some CAs (e.g. Verisign) distribute certificates in this form.
7485 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7486 list to exclude them. This means that no special compilation option
7487 is needed to use anonymous DH: it just needs to be included in the
7491 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7492 EVP_MD_type. The old functionality is available in a new macro called
7493 EVP_MD_md(). Change code that uses it and update docs.
7496 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7497 where the 'void *' argument is replaced by a function pointer argument.
7498 Previously 'void *' was abused to point to functions, which works on
7499 many platforms, but is not correct. As these functions are usually
7500 called by macros defined in OpenSSL header files, most source code
7501 should work without changes.
7504 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7505 sections with information on -D... compiler switches used for
7506 compiling the library so that applications can see them. To enable
7507 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7508 must be defined. E.g.,
7509 #define OPENSSL_ALGORITHM_DEFINES
7510 #include <openssl/opensslconf.h>
7511 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7512 [Richard Levitte, Ulf and Bodo Möller]
7514 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7518 *) Change the 'other' type in certificate aux info to a STACK_OF
7519 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7520 the required ASN1 format: arbitrary types determined by an OID.
7523 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7524 argument to 'req'. This is not because the function is newer or
7525 better than others it just uses the work 'NEW' in the certificate
7526 request header lines. Some software needs this.
7529 *) Reorganise password command line arguments: now passwords can be
7530 obtained from various sources. Delete the PEM_cb function and make
7531 it the default behaviour: i.e. if the callback is NULL and the
7532 usrdata argument is not NULL interpret it as a null terminated pass
7533 phrase. If usrdata and the callback are NULL then the pass phrase
7534 is prompted for as usual.
7537 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7538 the support is automatically enabled. The resulting binaries will
7539 autodetect the card and use it if present.
7540 [Ben Laurie and Compaq Inc.]
7542 *) Work around for Netscape hang bug. This sends certificate request
7543 and server done in one record. Since this is perfectly legal in the
7544 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7545 the bugs/SSLv3 entry for more info.
7548 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7551 *) Add -rand argument to smime and pkcs12 applications and read/write
7555 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7558 *) Add command line password options to the remaining applications.
7561 *) Bug fix for BN_div_recp() for numerators with an even number of
7565 *) More tests in bntest.c, and changed test_bn output.
7568 *) ./config recognizes MacOS X now.
7571 *) Bug fix for BN_div() when the first words of num and divsor are
7572 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7575 *) Add support for various broken PKCS#8 formats, and command line
7576 options to produce them.
7579 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7580 get temporary BIGNUMs from a BN_CTX.
7583 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7587 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7588 include a #define from the old name to the new. The original intent
7589 was that statically linked binaries could for example just call
7590 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7591 link with digests. This never worked becayse SSLeay_add_all_digests()
7592 and SSLeay_add_all_ciphers() were in the same source file so calling
7593 one would link with the other. They are now in separate source files.
7596 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7599 *) Use a less unusual form of the Miller-Rabin primality test (it used
7600 a binary algorithm for exponentiation integrated into the Miller-Rabin
7601 loop, our standard modexp algorithms are faster).
7604 *) Support for the EBCDIC character set completed.
7605 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7607 *) Source code cleanups: use const where appropriate, eliminate casts,
7608 use void * instead of char * in lhash.
7611 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7612 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7613 this the server could overwrite ephemeral keys that the client
7617 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7618 using 50 iterations of the Rabin-Miller test.
7620 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7621 iterations of the Rabin-Miller test as required by the appendix
7622 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7623 As BN_is_prime_fasttest includes trial division, DSA parameter
7624 generation becomes much faster.
7626 This implies a change for the callback functions in DSA_is_prime
7627 and DSA_generate_parameters: The callback function is called once
7628 for each positive witness in the Rabin-Miller test, not just
7629 occasionally in the inner loop; and the parameters to the
7630 callback function now provide an iteration count for the outer
7631 loop rather than for the current invocation of the inner loop.
7632 DSA_generate_parameters additionally can call the callback
7633 function with an 'iteration count' of -1, meaning that a
7634 candidate has passed the trial division test (when q is generated
7635 from an application-provided seed, trial division is skipped).
7638 *) New function BN_is_prime_fasttest that optionally does trial
7639 division before starting the Rabin-Miller test and has
7640 an additional BN_CTX * argument (whereas BN_is_prime always
7641 has to allocate at least one BN_CTX).
7642 'callback(1, -1, cb_arg)' is called when a number has passed the
7643 trial division stage.
7646 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7650 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7653 *) New function BN_pseudo_rand().
7656 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7657 bignum version of BN_from_montgomery() with the working code from
7658 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7662 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7663 made it impossible to use the same SSL_SESSION data structure in
7664 SSL2 clients in multiple threads.
7667 *) The return value of RAND_load_file() no longer counts bytes obtained
7668 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7669 to seed the PRNG (previously an explicit byte count was required).
7670 [Ulf Möller, Bodo Möller]
7672 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7673 used (char *) instead of (void *) and had casts all over the place.
7676 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7679 *) Retain source code compatibility for BN_prime_checks macro:
7680 BN_is_prime(..., BN_prime_checks, ...) now uses
7681 BN_prime_checks_for_size to determine the appropriate number of
7682 Rabin-Miller iterations.
7685 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7686 DH_CHECK_P_NOT_SAFE_PRIME.
7687 (Check if this is true? OpenPGP calls them "strong".)
7690 *) Merge the functionality of "dh" and "gendh" programs into a new program
7691 "dhparam". The old programs are retained for now but will handle DH keys
7692 (instead of parameters) in future.
7695 *) Make the ciphers, s_server and s_client programs check the return values
7696 when a new cipher list is set.
7699 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7700 ciphers. Before when the 56bit ciphers were enabled the sorting was
7703 The syntax for the cipher sorting has been extended to support sorting by
7704 cipher-strength (using the strength_bits hard coded in the tables).
7705 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7707 Fix a bug in the cipher-command parser: when supplying a cipher command
7708 string with an "undefined" symbol (neither command nor alphanumeric
7709 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7710 an error is flagged.
7712 Due to the strength-sorting extension, the code of the
7713 ssl_create_cipher_list() function was completely rearranged. I hope that
7714 the readability was also increased :-)
7715 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7717 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7718 for the first serial number and places 2 in the serial number file. This
7719 avoids problems when the root CA is created with serial number zero and
7720 the first user certificate has the same issuer name and serial number
7724 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7725 the new code. Add documentation for this stuff.
7728 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7729 X509_*() to X509at_*() on the grounds that they don't handle X509
7730 structures and behave in an analagous way to the X509v3 functions:
7731 they shouldn't be called directly but wrapper functions should be used
7734 So we also now have some wrapper functions that call the X509at functions
7735 when passed certificate requests. (TO DO: similar things can be done with
7736 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7737 things. Some of these need some d2i or i2d and print functionality
7738 because they handle more complex structures.)
7741 *) Add missing #ifndefs that caused missing symbols when building libssl
7742 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7743 NO_RSA in ssl/s2*.c.
7744 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7746 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7747 has a return value which indicates the quality of the random data
7748 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7749 error queue. New function RAND_pseudo_bytes() generates output that is
7750 guaranteed to be unique but not unpredictable. RAND_add is like
7751 RAND_seed, but takes an extra argument for an entropy estimate
7752 (RAND_seed always assumes full entropy).
7755 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7756 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7757 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7758 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7759 false-positive rate of at most 2^-80 for random input.
7762 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7765 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7766 in the 0.9.5 release), this returns the chain
7767 from an X509_CTX structure with a dup of the stack and all
7768 the X509 reference counts upped: so the stack will exist
7769 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7772 Also make SSL_SESSION_print() print out the verify return
7776 *) Add manpage for the pkcs12 command. Also change the default
7777 behaviour so MAC iteration counts are used unless the new
7778 -nomaciter option is used. This improves file security and
7779 only older versions of MSIE (4.0 for example) need it.
7782 *) Honor the no-xxx Configure options when creating .DEF files.
7785 *) Add PKCS#10 attributes to field table: challengePassword,
7786 unstructuredName and unstructuredAddress. These are taken from
7787 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7788 international characters are used.
7790 More changes to X509_ATTRIBUTE code: allow the setting of types
7791 based on strings. Remove the 'loc' parameter when adding
7792 attributes because these will be a SET OF encoding which is sorted
7796 *) Initial changes to the 'req' utility to allow request generation
7797 automation. This will allow an application to just generate a template
7798 file containing all the field values and have req construct the
7801 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7802 used all over the place including certificate requests and PKCS#7
7803 structures. They are currently handled manually where necessary with
7804 some primitive wrappers for PKCS#7. The new functions behave in a
7805 manner analogous to the X509 extension functions: they allow
7806 attributes to be looked up by NID and added.
7808 Later something similar to the X509V3 code would be desirable to
7809 automatically handle the encoding, decoding and printing of the
7810 more complex types. The string types like challengePassword can
7811 be handled by the string table functions.
7813 Also modified the multi byte string table handling. Now there is
7814 a 'global mask' which masks out certain types. The table itself
7815 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7816 is useful when for example there is only one permissible type
7817 (as in countryName) and using the mask might result in no valid
7821 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7822 SSL_get_peer_finished to allow applications to obtain the latest
7823 Finished messages sent to the peer or expected from the peer,
7824 respectively. (SSL_get_peer_finished is usually the Finished message
7825 actually received from the peer, otherwise the protocol will be aborted.)
7827 As the Finished message are message digests of the complete handshake
7828 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7829 be used for external authentication procedures when the authentication
7830 provided by SSL/TLS is not desired or is not enough.
7833 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7834 the host supports BWX extension and if Compaq C is present on the
7835 $PATH. Just exploiting of the BWX extension results in 20-30%
7836 performance kick for some algorithms, e.g. DES and RC4 to mention
7837 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7841 *) Add support for MS "fast SGC". This is arguably a violation of the
7842 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7843 weak crypto and after checking the certificate is SGC a second one
7844 with strong crypto. MS SGC stops the first handshake after receiving
7845 the server certificate message and sends a second client hello. Since
7846 a server will typically do all the time consuming operations before
7847 expecting any further messages from the client (server key exchange
7848 is the most expensive) there is little difference between the two.
7850 To get OpenSSL to support MS SGC we have to permit a second client
7851 hello message after we have sent server done. In addition we have to
7852 reset the MAC if we do get this second client hello.
7855 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7856 if a DER encoded private key is RSA or DSA traditional format. Changed
7857 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7858 format DER encoded private key. Newer code should use PKCS#8 format which
7859 has the key type encoded in the ASN1 structure. Added DER private key
7860 support to pkcs8 application.
7863 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7864 ciphersuites has been selected (as required by the SSL 3/TLS 1
7865 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7866 is set, we interpret this as a request to violate the specification
7867 (the worst that can happen is a handshake failure, and 'correct'
7868 behaviour would result in a handshake failure anyway).
7871 *) In SSL_CTX_add_session, take into account that there might be multiple
7872 SSL_SESSION structures with the same session ID (e.g. when two threads
7873 concurrently obtain them from an external cache).
7874 The internal cache can handle only one SSL_SESSION with a given ID,
7875 so if there's a conflict, we now throw out the old one to achieve
7879 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7880 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7881 some routines that use cipher OIDs: some ciphers do not have OIDs
7882 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7886 *) Simplify the trust setting structure and code. Now we just have
7887 two sequences of OIDs for trusted and rejected settings. These will
7888 typically have values the same as the extended key usage extension
7889 and any application specific purposes.
7891 The trust checking code now has a default behaviour: it will just
7892 check for an object with the same NID as the passed id. Functions can
7893 be provided to override either the default behaviour or the behaviour
7894 for a given id. SSL client, server and email already have functions
7895 in place for compatibility: they check the NID and also return "trusted"
7896 if the certificate is self signed.
7899 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7900 traditional format into an EVP_PKEY structure.
7903 *) Add a password callback function PEM_cb() which either prompts for
7904 a password if usr_data is NULL or otherwise assumes it is a null
7905 terminated password. Allow passwords to be passed on command line
7906 environment or config files in a few more utilities.
7909 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7910 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7911 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7912 Update documentation.
7915 *) Support for ASN1 "NULL" type. This could be handled before by using
7916 ASN1_TYPE but there wasn't any function that would try to read a NULL
7917 and produce an error if it couldn't. For compatibility we also have
7918 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7919 don't allocate anything because they don't need to.
7922 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7924 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7926 *) Rebuild of the memory allocation routines used by OpenSSL code and
7927 possibly others as well. The purpose is to make an interface that
7928 provide hooks so anyone can build a separate set of allocation and
7929 deallocation routines to be used by OpenSSL, for example memory
7930 pool implementations, or something else, which was previously hard
7931 since Malloc(), Realloc() and Free() were defined as macros having
7932 the values malloc, realloc and free, respectively (except for Win32
7933 compilations). The same is provided for memory debugging code.
7934 OpenSSL already comes with functionality to find memory leaks, but
7935 this gives people a chance to debug other memory problems.
7937 With these changes, a new set of functions and macros have appeared:
7939 CRYPTO_set_mem_debug_functions() [F]
7940 CRYPTO_get_mem_debug_functions() [F]
7941 CRYPTO_dbg_set_options() [F]
7942 CRYPTO_dbg_get_options() [F]
7943 CRYPTO_malloc_debug_init() [M]
7945 The memory debug functions are NULL by default, unless the library
7946 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7947 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7948 gives the standard debugging functions that come with OpenSSL) or
7949 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7950 provided by the library user) must be used. When the standard
7951 debugging functions are used, CRYPTO_dbg_set_options can be used to
7952 request additional information:
7953 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7954 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7956 Also, things like CRYPTO_set_mem_functions will always give the
7957 expected result (the new set of functions is used for allocation
7958 and deallocation) at all times, regardless of platform and compiler
7961 To finish it up, some functions that were never use in any other
7962 way than through macros have a new API and new semantic:
7965 CRYPTO_dbg_realloc()
7968 All macros of value have retained their old syntax.
7969 [Richard Levitte and Bodo Moeller]
7971 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7972 ordering of SMIMECapabilities wasn't in "strength order" and there
7973 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7977 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7978 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7979 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7981 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7982 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7983 functionality to handle multipart/signed properly) and a utility
7984 called 'smime' to call all this stuff. This is based on code I
7985 originally wrote for Celo who have kindly allowed it to be
7986 included in OpenSSL.
7989 *) Add variants des_set_key_checked and des_set_key_unchecked of
7990 des_set_key (aka des_key_sched). Global variable des_check_key
7991 decides which of these is called by des_set_key; this way
7992 des_check_key behaves as it always did, but applications and
7993 the library itself, which was buggy for des_check_key == 1,
7994 have a cleaner way to pick the version they need.
7997 *) New function PKCS12_newpass() which changes the password of a
8001 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8002 dynamic mix. In both cases the ids can be used as an index into the
8003 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8004 functions so they accept a list of the field values and the
8005 application doesn't need to directly manipulate the X509_TRUST
8009 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8013 *) Modify the way the V3 extension code looks up extensions. This now
8014 works in a similar way to the object code: we have some "standard"
8015 extensions in a static table which is searched with OBJ_bsearch()
8016 and the application can add dynamic ones if needed. The file
8017 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8018 updated whenever a new extension is added to the core code and kept
8019 in ext_nid order. There is a simple program 'tabtest.c' which checks
8020 this. New extensions are not added too often so this file can readily
8021 be maintained manually.
8023 There are two big advantages in doing things this way. The extensions
8024 can be looked up immediately and no longer need to be "added" using
8025 X509V3_add_standard_extensions(): this function now does nothing.
8026 [Side note: I get *lots* of email saying the extension code doesn't
8027 work because people forget to call this function]
8028 Also no dynamic allocation is done unless new extensions are added:
8029 so if we don't add custom extensions there is no need to call
8030 X509V3_EXT_cleanup().
8033 *) Modify enc utility's salting as follows: make salting the default. Add a
8034 magic header, so unsalted files fail gracefully instead of just decrypting
8035 to garbage. This is because not salting is a big security hole, so people
8036 should be discouraged from doing it.
8039 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8040 digest to be passed on the command line but it only used this
8041 parameter when signing a certificate. Modified so all relevant
8042 operations are affected by the digest parameter including the
8043 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8044 DSA key was used because it didn't fix the digest.
8047 *) Initial certificate chain verify code. Currently tests the untrusted
8048 certificates for consistency with the verify purpose (which is set
8049 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8051 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8052 this is because it will reject chains with invalid extensions whereas
8053 every previous version of OpenSSL and SSLeay made no checks at all.
8055 Trust code: checks the root CA for the relevant trust settings. Trust
8056 settings have an initial value consistent with the verify purpose: e.g.
8057 if the verify purpose is for SSL client use it expects the CA to be
8058 trusted for SSL client use. However the default value can be changed to
8059 permit custom trust settings: one example of this would be to only trust
8060 certificates from a specific "secure" set of CAs.
8062 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8063 which should be used for version portability: especially since the
8064 verify structure is likely to change more often now.
8066 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8067 to set them. If not set then assume SSL clients will verify SSL servers
8070 Two new options to the verify program: -untrusted allows a set of
8071 untrusted certificates to be passed in and -purpose which sets the
8072 intended purpose of the certificate. If a purpose is set then the
8073 new chain verify code is used to check extension consistency.
8076 *) Support for the authority information access extension.
8079 *) Modify RSA and DSA PEM read routines to transparently handle
8080 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8081 public keys in a format compatible with certificate
8082 SubjectPublicKeyInfo structures. Unfortunately there were already
8083 functions called *_PublicKey_* which used various odd formats so
8084 these are retained for compatibility: however the DSA variants were
8085 never in a public release so they have been deleted. Changed dsa/rsa
8086 utilities to handle the new format: note no releases ever handled public
8087 keys so we should be OK.
8089 The primary motivation for this change is to avoid the same fiasco
8090 that dogs private keys: there are several incompatible private key
8091 formats some of which are standard and some OpenSSL specific and
8092 require various evil hacks to allow partial transparent handling and
8093 even then it doesn't work with DER formats. Given the option anything
8094 other than PKCS#8 should be dumped: but the other formats have to
8095 stay in the name of compatibility.
8097 With public keys and the benefit of hindsight one standard format
8098 is used which works with EVP_PKEY, RSA or DSA structures: though
8099 it clearly returns an error if you try to read the wrong kind of key.
8101 Added a -pubkey option to the 'x509' utility to output the public key.
8102 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8103 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8104 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8105 that do the same as the EVP_PKEY_assign_*() except they up the
8106 reference count of the added key (they don't "swallow" the
8110 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8111 CRLs would fail if the file contained no certificates or no CRLs:
8112 added a new function to read in both types and return the number
8113 read: this means that if none are read it will be an error. The
8114 DER versions of the certificate and CRL reader would always fail
8115 because it isn't possible to mix certificates and CRLs in DER format
8116 without choking one or the other routine. Changed this to just read
8117 a certificate: this is the best we can do. Also modified the code
8118 in apps/verify.c to take notice of return codes: it was previously
8119 attempting to read in certificates from NULL pointers and ignoring
8120 any errors: this is one reason why the cert and CRL reader seemed
8121 to work. It doesn't check return codes from the default certificate
8122 routines: these may well fail if the certificates aren't installed.
8125 *) Code to support otherName option in GeneralName.
8128 *) First update to verify code. Change the verify utility
8129 so it warns if it is passed a self signed certificate:
8130 for consistency with the normal behaviour. X509_verify
8131 has been modified to it will now verify a self signed
8132 certificate if *exactly* the same certificate appears
8133 in the store: it was previously impossible to trust a
8134 single self signed certificate. This means that:
8135 openssl verify ss.pem
8136 now gives a warning about a self signed certificate but
8137 openssl verify -CAfile ss.pem ss.pem
8141 *) For servers, store verify_result in SSL_SESSION data structure
8142 (and add it to external session representation).
8143 This is needed when client certificate verifications fails,
8144 but an application-provided verification callback (set by
8145 SSL_CTX_set_cert_verify_callback) allows accepting the session
8146 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8147 but returns 1): When the session is reused, we have to set
8148 ssl->verify_result to the appropriate error code to avoid
8150 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8152 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8153 case in PKCS7_dataInit() where the signed PKCS7 structure
8154 didn't contain any existing data because it was being created.
8155 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8157 *) Add a salt to the key derivation routines in enc.c. This
8158 forms the first 8 bytes of the encrypted file. Also add a
8159 -S option to allow a salt to be input on the command line.
8162 *) New function X509_cmp(). Oddly enough there wasn't a function
8163 to compare two certificates. We do this by working out the SHA1
8164 hash and comparing that. X509_cmp() will be needed by the trust
8168 *) SSL_get1_session() is like SSL_get_session(), but increments
8169 the reference count in the SSL_SESSION returned.
8170 [Geoff Thorpe <geoff@eu.c2.net>]
8172 *) Fix for 'req': it was adding a null to request attributes.
8173 Also change the X509_LOOKUP and X509_INFO code to handle
8174 certificate auxiliary information.
8177 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8181 *) Add the possibility to add extra information to the memory leak
8182 detecting output, to form tracebacks, showing from where each
8183 allocation was originated: CRYPTO_push_info("constant string") adds
8184 the string plus current file name and line number to a per-thread
8185 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8186 is like calling CYRPTO_pop_info() until the stack is empty.
8187 Also updated memory leak detection code to be multi-thread-safe.
8190 *) Add options -text and -noout to pkcs7 utility and delete the
8191 encryption options which never did anything. Update docs.
8194 *) Add options to some of the utilities to allow the pass phrase
8195 to be included on either the command line (not recommended on
8196 OSes like Unix) or read from the environment. Update the
8197 manpages and fix a few bugs.
8200 *) Add a few manpages for some of the openssl commands.
8203 *) Fix the -revoke option in ca. It was freeing up memory twice,
8204 leaking and not finding already revoked certificates.
8207 *) Extensive changes to support certificate auxiliary information.
8208 This involves the use of X509_CERT_AUX structure and X509_AUX
8209 functions. An X509_AUX function such as PEM_read_X509_AUX()
8210 can still read in a certificate file in the usual way but it
8211 will also read in any additional "auxiliary information". By
8212 doing things this way a fair degree of compatibility can be
8213 retained: existing certificates can have this information added
8214 using the new 'x509' options.
8216 Current auxiliary information includes an "alias" and some trust
8217 settings. The trust settings will ultimately be used in enhanced
8218 certificate chain verification routines: currently a certificate
8219 can only be trusted if it is self signed and then it is trusted
8223 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8224 The problem was that one of the replacement routines had not been working
8225 since SSLeay releases. For now the offending routine has been replaced
8226 with non-optimised assembler. Even so, this now gives around 95%
8227 performance improvement for 1024 bit RSA signs.
8230 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8231 handling. Most clients have the effective key size in bits equal to
8232 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8233 A few however don't do this and instead use the size of the decrypted key
8234 to determine the RC2 key length and the AlgorithmIdentifier to determine
8235 the effective key length. In this case the effective key length can still
8236 be 40 bits but the key length can be 168 bits for example. This is fixed
8237 by manually forcing an RC2 key into the EVP_PKEY structure because the
8238 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8239 the key length and effective key length are equal.
8242 *) Add a bunch of functions that should simplify the creation of
8243 X509_NAME structures. Now you should be able to do:
8244 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8245 and have it automatically work out the correct field type and fill in
8246 the structures. The more adventurous can try:
8247 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8248 and it will (hopefully) work out the correct multibyte encoding.
8251 *) Change the 'req' utility to use the new field handling and multibyte
8252 copy routines. Before the DN field creation was handled in an ad hoc
8253 way in req, ca, and x509 which was rather broken and didn't support
8254 BMPStrings or UTF8Strings. Since some software doesn't implement
8255 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8256 using the dirstring_type option. See the new comment in the default
8257 openssl.cnf for more info.
8260 *) Make crypto/rand/md_rand.c more robust:
8261 - Assure unique random numbers after fork().
8262 - Make sure that concurrent threads access the global counter and
8263 md serializably so that we never lose entropy in them
8264 or use exactly the same state in multiple threads.
8265 Access to the large state is not always serializable because
8266 the additional locking could be a performance killer, and
8267 md should be large enough anyway.
8270 *) New file apps/app_rand.c with commonly needed functionality
8271 for handling the random seed file.
8273 Use the random seed file in some applications that previously did not:
8275 dsaparam -genkey (which also ignored its '-rand' option),
8278 x509 (when signing).
8279 Except on systems with /dev/urandom, it is crucial to have a random
8280 seed file at least for key creation, DSA signing, and for DH exchanges;
8281 for RSA signatures we could do without one.
8283 gendh and gendsa (unlike genrsa) used to read only the first byte
8284 of each file listed in the '-rand' option. The function as previously
8285 found in genrsa is now in app_rand.c and is used by all programs
8286 that support '-rand'.
8289 *) In RAND_write_file, use mode 0600 for creating files;
8290 don't just chmod when it may be too late.
8293 *) Report an error from X509_STORE_load_locations
8294 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8297 *) New function ASN1_mbstring_copy() this copies a string in either
8298 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8299 into an ASN1_STRING type. A mask of permissible types is passed
8300 and it chooses the "minimal" type to use or an error if not type
8304 *) Add function equivalents to the various macros in asn1.h. The old
8305 macros are retained with an M_ prefix. Code inside the library can
8306 use the M_ macros. External code (including the openssl utility)
8307 should *NOT* in order to be "shared library friendly".
8310 *) Add various functions that can check a certificate's extensions
8311 to see if it usable for various purposes such as SSL client,
8312 server or S/MIME and CAs of these types. This is currently
8313 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8314 verification. Also added a -purpose flag to x509 utility to
8315 print out all the purposes.
8318 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8322 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8323 for, obtain and decode and extension and obtain its critical flag.
8324 This allows all the necessary extension code to be handled in a
8325 single function call.
8328 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8329 platforms. See crypto/rc4/rc4_enc.c for further details.
8332 *) New -noout option to asn1parse. This causes no output to be produced
8333 its main use is when combined with -strparse and -out to extract data
8334 from a file (which may not be in ASN.1 format).
8337 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8338 when producing the local key id.
8339 [Richard Levitte <levitte@stacken.kth.se>]
8341 *) New option -dhparam in s_server. This allows a DH parameter file to be
8342 stated explicitly. If it is not stated then it tries the first server
8343 certificate file. The previous behaviour hard coded the filename
8347 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8348 a public key to be input or output. For example:
8349 openssl rsa -in key.pem -pubout -out pubkey.pem
8350 Also added necessary DSA public key functions to handle this.
8353 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8354 in the message. This was handled by allowing
8355 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8356 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8358 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8359 to the end of the strings whereas this didn't. This would cause problems
8360 if strings read with d2i_ASN1_bytes() were later modified.
8361 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8363 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8364 data and it contains EOF it will end up returning an error. This is
8365 caused by input 46 bytes long. The cause is due to the way base64
8366 BIOs find the start of base64 encoded data. They do this by trying a
8367 trial decode on each line until they find one that works. When they
8368 do a flag is set and it starts again knowing it can pass all the
8369 data directly through the decoder. Unfortunately it doesn't reset
8370 the context it uses. This means that if EOF is reached an attempt
8371 is made to pass two EOFs through the context and this causes the
8372 resulting error. This can also cause other problems as well. As is
8373 usual with these problems it takes *ages* to find and the fix is
8374 trivial: move one line.
8375 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8377 *) Ugly workaround to get s_client and s_server working under Windows. The
8378 old code wouldn't work because it needed to select() on sockets and the
8379 tty (for keypresses and to see if data could be written). Win32 only
8380 supports select() on sockets so we select() with a 1s timeout on the
8381 sockets and then see if any characters are waiting to be read, if none
8382 are present then we retry, we also assume we can always write data to
8383 the tty. This isn't nice because the code then blocks until we've
8384 received a complete line of data and it is effectively polling the
8385 keyboard at 1s intervals: however it's quite a bit better than not
8386 working at all :-) A dedicated Windows application might handle this
8387 with an event loop for example.
8390 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8391 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8392 will be called when RSA_sign() and RSA_verify() are used. This is useful
8393 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8394 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8395 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8396 This necessitated the support of an extra signature type NID_md5_sha1
8397 for SSL signatures and modifications to the SSL library to use it instead
8398 of calling RSA_public_decrypt() and RSA_private_encrypt().
8401 *) Add new -verify -CAfile and -CApath options to the crl program, these
8402 will lookup a CRL issuers certificate and verify the signature in a
8403 similar way to the verify program. Tidy up the crl program so it
8404 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8405 less strict. It will now permit CRL extensions even if it is not
8406 a V2 CRL: this will allow it to tolerate some broken CRLs.
8409 *) Initialize all non-automatic variables each time one of the openssl
8410 sub-programs is started (this is necessary as they may be started
8411 multiple times from the "OpenSSL>" prompt).
8412 [Lennart Bang, Bodo Moeller]
8414 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8415 removing all other RSA functionality (this is what NO_RSA does). This
8416 is so (for example) those in the US can disable those operations covered
8417 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8421 *) Non-copying interface to BIO pairs.
8422 (still largely untested)
8425 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8426 ASCII string. This was handled independently in various places before.
8429 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8430 UTF8 strings a character at a time.
8433 *) Use client_version from client hello to select the protocol
8434 (s23_srvr.c) and for RSA client key exchange verification
8435 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8438 *) Add various utility functions to handle SPKACs, these were previously
8439 handled by poking round in the structure internals. Added new function
8440 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8441 print, verify and generate SPKACs. Based on an original idea from
8442 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8445 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8448 *) Allow the config file extension section to be overwritten on the
8449 command line. Based on an original idea from Massimiliano Pala
8450 <madwolf@comune.modena.it>. The new option is called -extensions
8451 and can be applied to ca, req and x509. Also -reqexts to override
8452 the request extensions in req and -crlexts to override the crl extensions
8456 *) Add new feature to the SPKAC handling in ca. Now you can include
8457 the same field multiple times by preceding it by "XXXX." for example:
8460 this is the same syntax as used in the req config file.
8463 *) Allow certificate extensions to be added to certificate requests. These
8464 are specified in a 'req_extensions' option of the req section of the
8465 config file. They can be printed out with the -text option to req but
8466 are otherwise ignored at present.
8469 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8470 data read consists of only the final block it would not decrypted because
8471 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8472 A misplaced 'break' also meant the decrypted final block might not be
8473 copied until the next read.
8476 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8477 a few extra parameters to the DH structure: these will be useful if
8478 for example we want the value of 'q' or implement X9.42 DH.
8481 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8482 provides hooks that allow the default DSA functions or functions on a
8483 "per key" basis to be replaced. This allows hardware acceleration and
8484 hardware key storage to be handled without major modification to the
8485 library. Also added low level modexp hooks and CRYPTO_EX structure and
8486 associated functions.
8489 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8490 as "read only": it can't be written to and the buffer it points to will
8491 not be freed. Reading from a read only BIO is much more efficient than
8492 a normal memory BIO. This was added because there are several times when
8493 an area of memory needs to be read from a BIO. The previous method was
8494 to create a memory BIO and write the data to it, this results in two
8495 copies of the data and an O(n^2) reading algorithm. There is a new
8496 function BIO_new_mem_buf() which creates a read only memory BIO from
8497 an area of memory. Also modified the PKCS#7 routines to use read only
8501 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8502 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8503 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8504 but a retry condition occured while trying to read the rest.
8507 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8508 NID_pkcs7_encrypted by default: this was wrong since this should almost
8509 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8510 the encrypted data type: this is a more sensible place to put it and it
8511 allows the PKCS#12 code to be tidied up that duplicated this
8515 *) Changed obj_dat.pl script so it takes its input and output files on
8516 the command line. This should avoid shell escape redirection problems
8520 *) Initial support for certificate extension requests, these are included
8521 in things like Xenroll certificate requests. Included functions to allow
8522 extensions to be obtained and added.
8525 *) -crlf option to s_client and s_server for sending newlines as
8526 CRLF (as required by many protocols).
8529 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8531 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8532 [Ralf S. Engelschall]
8534 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8535 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8537 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8541 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8542 DH parameters/keys (q is lost during that conversion, but the resulting
8543 DH parameters contain its length).
8545 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8546 much faster than DH_generate_parameters (which creates parameters
8547 where p = 2*q + 1), and also the smaller q makes DH computations
8548 much more efficient (160-bit exponentiation instead of 1024-bit
8549 exponentiation); so this provides a convenient way to support DHE
8550 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8551 utter importance to use
8552 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8554 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8555 when such DH parameters are used, because otherwise small subgroup
8556 attacks may become possible!
8559 *) Avoid memory leak in i2d_DHparams.
8562 *) Allow the -k option to be used more than once in the enc program:
8563 this allows the same encrypted message to be read by multiple recipients.
8566 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8567 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8568 it will always use the numerical form of the OID, even if it has a short
8572 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8573 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8574 otherwise bn_mod_exp was called. In the case of hardware keys for example
8575 no private key components need be present and it might store extra data
8576 in the RSA structure, which cannot be accessed from bn_mod_exp.
8577 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8578 private key operations.
8581 *) Added support for SPARC Linux.
8584 *) pem_password_cb function type incompatibly changed from
8585 typedef int pem_password_cb(char *buf, int size, int rwflag);
8587 ....(char *buf, int size, int rwflag, void *userdata);
8588 so that applications can pass data to their callbacks:
8589 The PEM[_ASN1]_{read,write}... functions and macros now take an
8590 additional void * argument, which is just handed through whenever
8591 the password callback is called.
8592 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8594 New function SSL_CTX_set_default_passwd_cb_userdata.
8596 Compatibility note: As many C implementations push function arguments
8597 onto the stack in reverse order, the new library version is likely to
8598 interoperate with programs that have been compiled with the old
8599 pem_password_cb definition (PEM_whatever takes some data that
8600 happens to be on the stack as its last argument, and the callback
8601 just ignores this garbage); but there is no guarantee whatsoever that
8604 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8605 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8606 problems not only on Windows, but also on some Unix platforms.
8607 To avoid problematic command lines, these definitions are now in an
8608 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8609 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8612 *) MIPS III/IV assembler module is reimplemented.
8615 *) More DES library cleanups: remove references to srand/rand and
8616 delete an unused file.
8619 *) Add support for the the free Netwide assembler (NASM) under Win32,
8620 since not many people have MASM (ml) and it can be hard to obtain.
8621 This is currently experimental but it seems to work OK and pass all
8622 the tests. Check out INSTALL.W32 for info.
8625 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8626 without temporary keys kept an extra copy of the server key,
8627 and connections with temporary keys did not free everything in case
8631 *) New function RSA_check_key and new openssl rsa option -check
8632 for verifying the consistency of RSA keys.
8633 [Ulf Moeller, Bodo Moeller]
8635 *) Various changes to make Win32 compile work:
8636 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8637 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8638 comparison" warnings.
8639 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8642 *) Add a debugging option to PKCS#5 v2 key generation function: when
8643 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8644 derived keys are printed to stderr.
8647 *) Copy the flags in ASN1_STRING_dup().
8648 [Roman E. Pavlov <pre@mo.msk.ru>]
8650 *) The x509 application mishandled signing requests containing DSA
8651 keys when the signing key was also DSA and the parameters didn't match.
8653 It was supposed to omit the parameters when they matched the signing key:
8654 the verifying software was then supposed to automatically use the CA's
8655 parameters if they were absent from the end user certificate.
8657 Omitting parameters is no longer recommended. The test was also
8658 the wrong way round! This was probably due to unusual behaviour in
8659 EVP_cmp_parameters() which returns 1 if the parameters match.
8660 This meant that parameters were omitted when they *didn't* match and
8661 the certificate was useless. Certificates signed with 'ca' didn't have
8663 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8665 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8666 The interface is as follows:
8667 Applications can use
8668 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8669 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8670 "off" is now the default.
8671 The library internally uses
8672 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8673 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8674 to disable memory-checking temporarily.
8676 Some inconsistent states that previously were possible (and were
8677 even the default) are now avoided.
8679 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8680 with each memory chunk allocated; this is occasionally more helpful
8681 than just having a counter.
8683 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8685 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8689 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8690 which largely parallels "options", but is for changing API behaviour,
8691 whereas "options" are about protocol behaviour.
8692 Initial "mode" flags are:
8694 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8695 a single record has been written.
8696 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8697 retries use the same buffer location.
8698 (But all of the contents must be
8702 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8705 *) Fix problems with no-hmac etc.
8706 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8708 *) New functions RSA_get_default_method(), RSA_set_method() and
8709 RSA_get_method(). These allows replacement of RSA_METHODs without having
8710 to mess around with the internals of an RSA structure.
8713 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8714 Also really enable memory leak checks in openssl.c and in some
8716 [Chad C. Mulligan, Bodo Moeller]
8718 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8719 up the length of negative integers. This has now been simplified to just
8720 store the length when it is first determined and use it later, rather
8721 than trying to keep track of where data is copied and updating it to
8723 [Steve Henson, reported by Brien Wheeler
8724 <bwheeler@authentica-security.com>]
8726 *) Add a new function PKCS7_signatureVerify. This allows the verification
8727 of a PKCS#7 signature but with the signing certificate passed to the
8728 function itself. This contrasts with PKCS7_dataVerify which assumes the
8729 certificate is present in the PKCS#7 structure. This isn't always the
8730 case: certificates can be omitted from a PKCS#7 structure and be
8731 distributed by "out of band" means (such as a certificate database).
8734 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8735 function prototypes in pem.h, also change util/mkdef.pl to add the
8736 necessary function names.
8739 *) mk1mf.pl (used by Windows builds) did not properly read the
8740 options set by Configure in the top level Makefile, and Configure
8741 was not even able to write more than one option correctly.
8742 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8745 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8746 file to be loaded from a BIO or FILE pointer. The BIO version will
8747 for example allow memory BIOs to contain config info.
8750 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8751 Whoever hopes to achieve shared-library compatibility across versions
8752 must use this, not the compile-time macro.
8753 (Exercise 0.9.4: Which is the minimum library version required by
8755 Note: All this applies only to multi-threaded programs, others don't
8759 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8760 through a BIO pair triggered the default case, i.e.
8761 SSLerr(...,SSL_R_UNKNOWN_STATE).
8764 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8765 can use the SSL library even if none of the specific BIOs is
8769 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8770 for the encoded length.
8771 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8773 *) Add initial documentation of the X509V3 functions.
8776 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8777 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8778 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8779 secure PKCS#8 private key format with a high iteration count.
8782 *) Fix determination of Perl interpreter: A perl or perl5
8783 _directory_ in $PATH was also accepted as the interpreter.
8784 [Ralf S. Engelschall]
8786 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8787 wrong with it but it was very old and did things like calling
8788 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8792 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8793 to use the new extension code.
8796 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8797 with macros. This should make it easier to change their form, add extra
8798 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8802 *) Add to configuration table a new entry that can specify an alternative
8803 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8804 according to Mark Crispin <MRC@Panda.COM>.
8808 *) DES CBC did not update the IV. Weird.
8811 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8812 Changing the behaviour of the former might break existing programs --
8813 where IV updating is needed, des_ncbc_encrypt can be used.
8816 *) When bntest is run from "make test" it drives bc to check its
8817 calculations, as well as internally checking them. If an internal check
8818 fails, it needs to cause bc to give a non-zero result or make test carries
8819 on without noticing the failure. Fixed.
8822 *) DES library cleanups.
8825 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8826 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8827 ciphers. NOTE: although the key derivation function has been verified
8828 against some published test vectors it has not been extensively tested
8829 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8833 *) Instead of "mkdir -p", which is not fully portable, use new
8834 Perl script "util/mkdir-p.pl".
8837 *) Rewrite the way password based encryption (PBE) is handled. It used to
8838 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8839 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8840 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8841 the 'parameter' field of the AlgorithmIdentifier is passed to the
8842 underlying key generation function so it must do its own ASN1 parsing.
8843 This has also changed the EVP_PBE_CipherInit() function which now has a
8844 'parameter' argument instead of literal salt and iteration count values
8845 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8848 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8849 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8850 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8851 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8852 value was just used as a "magic string" and not used directly its
8853 value doesn't matter.
8856 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8860 *) "linux-sparc64" configuration (ultrapenguin).
8861 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8862 "linux-sparc" configuration.
8863 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8865 *) config now generates no-xxx options for missing ciphers.
8868 *) Support the EBCDIC character set (work in progress).
8869 File ebcdic.c not yet included because it has a different license.
8870 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8872 *) Support BS2000/OSD-POSIX.
8873 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8875 *) Make callbacks for key generation use void * instead of char *.
8878 *) Make S/MIME samples compile (not yet tested).
8881 *) Additional typesafe stacks.
8884 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8888 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8890 *) New configuration variant "sco5-gcc".
8892 *) Updated some demos.
8893 [Sean O Riordain, Wade Scholine]
8895 *) Add missing BIO_free at exit of pkcs12 application.
8898 *) Fix memory leak in conf.c.
8901 *) Updates for Win32 to assembler version of MD5.
8904 *) Set #! path to perl in apps/der_chop to where we found it
8905 instead of using a fixed path.
8908 *) SHA library changes for irix64-mips4-cc.
8911 *) Improvements for VMS support.
8915 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8917 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8918 This also avoids the problems with SC4.2 and unpatched SC5.
8919 [Andy Polyakov <appro@fy.chalmers.se>]
8921 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8922 These are required because of the typesafe stack would otherwise break
8923 existing code. If old code used a structure member which used to be STACK
8924 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8925 sk_num or sk_value it would produce an error because the num, data members
8926 are not present in STACK_OF. Now it just produces a warning. sk_set
8927 replaces the old method of assigning a value to sk_value
8928 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8929 that does this will no longer work (and should use sk_set instead) but
8930 this could be regarded as a "questionable" behaviour anyway.
8933 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8934 correctly handle encrypted S/MIME data.
8937 *) Change type of various DES function arguments from des_cblock
8938 (which means, in function argument declarations, pointer to char)
8939 to des_cblock * (meaning pointer to array with 8 char elements),
8940 which allows the compiler to do more typechecking; it was like
8941 that back in SSLeay, but with lots of ugly casts.
8943 Introduce new type const_des_cblock.
8946 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8947 problems: find RecipientInfo structure that matches recipient certificate
8948 and initialise the ASN1 structures properly based on passed cipher.
8951 *) Belatedly make the BN tests actually check the results.
8954 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8955 to and from BNs: it was completely broken. New compilation option
8956 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8957 key elements as negative integers.
8960 *) Reorganize and speed up MD5.
8961 [Andy Polyakov <appro@fy.chalmers.se>]
8964 [Richard Levitte <richard@levitte.org>]
8966 *) New option -out to asn1parse to allow the parsed structure to be
8967 output to a file. This is most useful when combined with the -strparse
8968 option to examine the output of things like OCTET STRINGS.
8971 *) Make SSL library a little more fool-proof by not requiring any longer
8972 that SSL_set_{accept,connect}_state be called before
8973 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8974 in many applications because usually everything *appeared* to work as
8975 intended anyway -- now it really works as intended).
8978 *) Move openssl.cnf out of lib/.
8981 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8982 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8983 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8984 [Ralf S. Engelschall]
8986 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8987 handle PKCS#7 enveloped data properly.
8988 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8990 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8991 copying pointers. The cert_st handling is changed by this in
8992 various ways (and thus what used to be known as ctx->default_cert
8993 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8994 any longer when s->cert does not give us what we need).
8995 ssl_cert_instantiate becomes obsolete by this change.
8996 As soon as we've got the new code right (possibly it already is?),
8997 we have solved a couple of bugs of the earlier code where s->cert
8998 was used as if it could not have been shared with other SSL structures.
9000 Note that using the SSL API in certain dirty ways now will result
9001 in different behaviour than observed with earlier library versions:
9002 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9003 does not influence s as it used to.
9005 In order to clean up things more thoroughly, inside SSL_SESSION
9006 we don't use CERT any longer, but a new structure SESS_CERT
9007 that holds per-session data (if available); currently, this is
9008 the peer's certificate chain and, for clients, the server's certificate
9009 and temporary key. CERT holds only those values that can have
9010 meaningful defaults in an SSL_CTX.
9013 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9014 from the internal representation. Various PKCS#7 fixes: remove some
9015 evil casts and set the enc_dig_alg field properly based on the signing
9019 *) Allow PKCS#12 password to be set from the command line or the
9020 environment. Let 'ca' get its config file name from the environment
9021 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9025 *) Allow certificate policies extension to use an IA5STRING for the
9026 organization field. This is contrary to the PKIX definition but
9027 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9031 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9032 without disallowing inline assembler and the like for non-pedantic builds.
9035 *) Support Borland C++ builder.
9036 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9041 *) SHA-1 cleanups and performance enhancements.
9042 [Andy Polyakov <appro@fy.chalmers.se>]
9044 *) Sparc v8plus assembler for the bignum library.
9045 [Andy Polyakov <appro@fy.chalmers.se>]
9047 *) Accept any -xxx and +xxx compiler options in Configure.
9050 *) Update HPUX configuration.
9053 *) Add missing sk_<type>_unshift() function to safestack.h
9054 [Ralf S. Engelschall]
9056 *) New function SSL_CTX_use_certificate_chain_file that sets the
9057 "extra_cert"s in addition to the certificate. (This makes sense
9058 only for "PEM" format files, as chains as a whole are not
9062 *) Support verify_depth from the SSL API.
9063 x509_vfy.c had what can be considered an off-by-one-error:
9064 Its depth (which was not part of the external interface)
9065 was actually counting the number of certificates in a chain;
9066 now it really counts the depth.
9069 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9070 instead of X509err, which often resulted in confusing error
9071 messages since the error codes are not globally unique
9072 (e.g. an alleged error in ssl3_accept when a certificate
9073 didn't match the private key).
9075 *) New function SSL_CTX_set_session_id_context that allows to set a default
9076 value (so that you don't need SSL_set_session_id_context for each
9077 connection using the SSL_CTX).
9080 *) OAEP decoding bug fix.
9083 *) Support INSTALL_PREFIX for package builders, as proposed by
9087 *) New Configure options "threads" and "no-threads". For systems
9088 where the proper compiler options are known (currently Solaris
9089 and Linux), "threads" is the default.
9092 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9095 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9096 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9097 such as /usr/local/bin.
9100 *) "make linux-shared" to build shared libraries.
9101 [Niels Poppe <niels@netbox.org>]
9103 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9106 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9107 extension adding in x509 utility.
9110 *) Remove NOPROTO sections and error code comments.
9113 *) Partial rewrite of the DEF file generator to now parse the ANSI
9117 *) New Configure options --prefix=DIR and --openssldir=DIR.
9120 *) Complete rewrite of the error code script(s). It is all now handled
9121 by one script at the top level which handles error code gathering,
9122 header rewriting and C source file generation. It should be much better
9123 than the old method: it now uses a modified version of Ulf's parser to
9124 read the ANSI prototypes in all header files (thus the old K&R definitions
9125 aren't needed for error creation any more) and do a better job of
9126 translating function codes into names. The old 'ASN1 error code imbedded
9127 in a comment' is no longer necessary and it doesn't use .err files which
9128 have now been deleted. Also the error code call doesn't have to appear all
9129 on one line (which resulted in some large lines...).
9132 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9135 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9136 0 (which usually indicates a closed connection), but continue reading.
9139 *) Fix some race conditions.
9142 *) Add support for CRL distribution points extension. Add Certificate
9143 Policies and CRL distribution points documentation.
9146 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9149 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9150 8 of keying material. Merlin has also confirmed interop with this fix
9151 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9152 [Merlin Hughes <merlin@baltimore.ie>]
9154 *) Fix lots of warnings.
9155 [Richard Levitte <levitte@stacken.kth.se>]
9157 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9158 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9159 [Richard Levitte <levitte@stacken.kth.se>]
9161 *) Fix problems with sizeof(long) == 8.
9162 [Andy Polyakov <appro@fy.chalmers.se>]
9164 *) Change functions to ANSI C.
9167 *) Fix typos in error codes.
9168 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9170 *) Remove defunct assembler files from Configure.
9173 *) SPARC v8 assembler BIGNUM implementation.
9174 [Andy Polyakov <appro@fy.chalmers.se>]
9176 *) Support for Certificate Policies extension: both print and set.
9177 Various additions to support the r2i method this uses.
9180 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9181 return a const string when you are expecting an allocated buffer.
9184 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9185 types DirectoryString and DisplayText.
9188 *) Add code to allow r2i extensions to access the configuration database,
9189 add an LHASH database driver and add several ctx helper functions.
9192 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9193 fail when they extended the size of a BIGNUM.
9196 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9197 support typesafe stack.
9200 *) Fix typo in SSL_[gs]et_options().
9201 [Nils Frostberg <nils@medcom.se>]
9203 *) Delete various functions and files that belonged to the (now obsolete)
9204 old X509V3 handling code.
9207 *) New Configure option "rsaref".
9210 *) Don't auto-generate pem.h.
9213 *) Introduce type-safe ASN.1 SETs.
9216 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9217 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9219 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9220 that links with OpenSSL (well at least cause lots of warnings), but fear
9221 not: the conversion is trivial, and it eliminates loads of evil casts. A
9222 few STACKed things have been converted already. Feel free to convert more.
9223 In the fullness of time, I'll do away with the STACK type altogether.
9226 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9227 specified in <certfile> by updating the entry in the index.txt file.
9228 This way one no longer has to edit the index.txt file manually for
9229 revoking a certificate. The -revoke option does the gory details now.
9230 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9232 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9233 `-text' option at all and this way the `-noout -text' combination was
9234 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9235 [Ralf S. Engelschall]
9237 *) Make sure a corresponding plain text error message exists for the
9238 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9239 verify callback function determined that a certificate was revoked.
9240 [Ralf S. Engelschall]
9242 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9243 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9244 all available cipers including rc5, which was forgotten until now.
9245 In order to let the testing shell script know which algorithms
9246 are available, a new (up to now undocumented) command
9247 "openssl list-cipher-commands" is used.
9250 *) Bugfix: s_client occasionally would sleep in select() when
9251 it should have checked SSL_pending() first.
9254 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9255 the raw DSA values prior to ASN.1 encoding.
9258 *) Tweaks to Configure
9259 [Niels Poppe <niels@netbox.org>]
9261 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9265 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9268 *) New config option to avoid instructions that are illegal on the 80386.
9269 The default code is faster, but requires at least a 486.
9272 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9273 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9274 same as SSL2_VERSION anyway.
9277 *) New "-showcerts" option for s_client.
9280 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9281 application. Various cleanups and fixes.
9284 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9285 modify error routines to work internally. Add error codes and PBE init
9286 to library startup routines.
9289 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9290 packing functions to asn1 and evp. Changed function names and error
9291 codes along the way.
9294 *) PKCS12 integration: and so it begins... First of several patches to
9295 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9296 objects to objects.h
9299 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9300 and display support for Thawte strong extranet extension.
9303 *) Add LinuxPPC support.
9304 [Jeff Dubrule <igor@pobox.org>]
9306 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9307 bn_div_words in alpha.s.
9308 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9310 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9311 OAEP isn't supported when OpenSSL is built with RSAref.
9312 [Ulf Moeller <ulf@fitug.de>]
9314 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9315 so they no longer are missing under -DNOPROTO.
9316 [Soren S. Jorvang <soren@t.dk>]
9319 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9321 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9322 doesn't work when the session is reused. Coming soon!
9325 *) Fix a security hole, that allows sessions to be reused in the wrong
9326 context thus bypassing client cert protection! All software that uses
9327 client certs and session caches in multiple contexts NEEDS PATCHING to
9328 allow session reuse! A fuller solution is in the works.
9329 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9331 *) Some more source tree cleanups (removed obsolete files
9332 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9333 permission on "config" script to be executable) and a fix for the INSTALL
9335 [Ulf Moeller <ulf@fitug.de>]
9337 *) Remove some legacy and erroneous uses of malloc, free instead of
9339 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9341 *) Make rsa_oaep_test return non-zero on error.
9342 [Ulf Moeller <ulf@fitug.de>]
9344 *) Add support for native Solaris shared libraries. Configure
9345 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9346 if someone would make that last step automatic.
9347 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9349 *) ctx_size was not built with the right compiler during "make links". Fixed.
9352 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9353 except NULL ciphers". This means the default cipher list will no longer
9354 enable NULL ciphers. They need to be specifically enabled e.g. with
9355 the string "DEFAULT:eNULL".
9358 *) Fix to RSA private encryption routines: if p < q then it would
9359 occasionally produce an invalid result. This will only happen with
9360 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9363 *) Be less restrictive and allow also `perl util/perlpath.pl
9364 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9365 because this way one can also use an interpreter named `perl5' (which is
9366 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9367 installed as `perl').
9368 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9370 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9371 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9373 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9374 advapi32.lib to Win32 build and change the pem test comparision
9375 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9376 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9377 and crypto/des/ede_cbcm_enc.c.
9380 *) DES quad checksum was broken on big-endian architectures. Fixed.
9383 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9384 Win32 test batch file so it (might) work again. The Win32 test batch file
9385 is horrible: I feel ill....
9388 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9389 in e_os.h. Audit of header files to check ANSI and non ANSI
9390 sections: 10 functions were absent from non ANSI section and not exported
9391 from Windows DLLs. Fixed up libeay.num for new functions.
9394 *) Make `openssl version' output lines consistent.
9395 [Ralf S. Engelschall]
9397 *) Fix Win32 symbol export lists for BIO functions: Added
9398 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9399 to ms/libeay{16,32}.def.
9400 [Ralf S. Engelschall]
9402 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9403 fine under Unix and passes some trivial tests I've now added. But the
9404 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9405 added to make sure no one expects that this stuff really works in the
9406 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9407 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9409 [Ralf S. Engelschall]
9411 *) Fix the generation of two part addresses in perl.
9412 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9414 *) Add config entry for Linux on MIPS.
9415 [John Tobey <jtobey@channel1.com>]
9417 *) Make links whenever Configure is run, unless we are on Windoze.
9420 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9421 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9425 *) Add a useful kludge to allow package maintainers to specify compiler and
9426 other platforms details on the command line without having to patch the
9427 Configure script everytime: One now can use ``perl Configure
9428 <id>:<details>'', i.e. platform ids are allowed to have details appended
9429 to them (seperated by colons). This is treated as there would be a static
9430 pre-configured entry in Configure's %table under key <id> with value
9431 <details> and ``perl Configure <id>'' is called. So, when you want to
9432 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9433 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9434 now, which overrides the FreeBSD-elf entry on-the-fly.
9435 [Ralf S. Engelschall]
9437 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9440 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9441 on the `perl Configure ...' command line. This way one can compile
9442 OpenSSL libraries with Position Independent Code (PIC) which is needed
9443 for linking it into DSOs.
9444 [Ralf S. Engelschall]
9446 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9450 *) Cleaned up the LICENSE document: The official contact for any license
9451 questions now is the OpenSSL core team under openssl-core@openssl.org.
9452 And add a paragraph about the dual-license situation to make sure people
9453 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9454 to the OpenSSL toolkit.
9455 [Ralf S. Engelschall]
9457 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9458 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9459 Additonally cleaned up the `make links' target: Remove unnecessary
9460 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9461 to speed processing and no longer clutter the display with confusing
9462 stuff. Instead only the actually done links are displayed.
9463 [Ralf S. Engelschall]
9465 *) Permit null encryption ciphersuites, used for authentication only. It used
9466 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9467 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9471 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9472 signed attributes when verifying signatures (this would break them),
9473 the detached data encoding was wrong and public keys obtained using
9474 X509_get_pubkey() weren't freed.
9477 *) Add text documentation for the BUFFER functions. Also added a work around
9478 to a Win95 console bug. This was triggered by the password read stuff: the
9479 last character typed gets carried over to the next fread(). If you were
9480 generating a new cert request using 'req' for example then the last
9481 character of the passphrase would be CR which would then enter the first
9485 *) Added the new `Includes OpenSSL Cryptography Software' button as
9486 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9487 button and can be used by applications based on OpenSSL to show the
9488 relationship to the OpenSSL project.
9489 [Ralf S. Engelschall]
9491 *) Remove confusing variables in function signatures in files
9492 ssl/ssl_lib.c and ssl/ssl.h.
9493 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9495 *) Don't install bss_file.c under PREFIX/include/
9496 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9498 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9499 functions that return function pointers and has support for NT specific
9500 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9501 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9502 unsigned to signed types: this was killing the Win32 compile.
9505 *) Add new certificate file to stack functions,
9506 SSL_add_dir_cert_subjects_to_stack() and
9507 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9508 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9509 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9510 This means that Apache-SSL and similar packages don't have to mess around
9511 to add as many CAs as they want to the preferred list.
9514 *) Experiment with doxygen documentation. Currently only partially applied to
9516 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9517 openssl.doxy as the configuration file.
9520 *) Get rid of remaining C++-style comments which strict C compilers hate.
9521 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9523 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9524 compiled in by default: it has problems with large keys.
9527 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9528 DH private keys and/or callback functions which directly correspond to
9529 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9530 is needed for applications which have to configure certificates on a
9531 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9533 For the RSA certificate situation is makes no difference, but
9534 for the DSA certificate situation this fixes the "no shared cipher"
9535 problem where the OpenSSL cipher selection procedure failed because the
9536 temporary keys were not overtaken from the context and the API provided
9537 no way to reconfigure them.
9538 The new functions now let applications reconfigure the stuff and they
9539 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9540 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9541 non-public-API function ssl_cert_instantiate() is used as a helper
9542 function and also to reduce code redundancy inside ssl_rsa.c.
9543 [Ralf S. Engelschall]
9545 *) Move s_server -dcert and -dkey options out of the undocumented feature
9546 area because they are useful for the DSA situation and should be
9547 recognized by the users.
9548 [Ralf S. Engelschall]
9550 *) Fix the cipher decision scheme for export ciphers: the export bits are
9551 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9552 SSL_EXP_MASK. So, the original variable has to be used instead of the
9553 already masked variable.
9554 [Richard Levitte <levitte@stacken.kth.se>]
9556 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9557 [Richard Levitte <levitte@stacken.kth.se>]
9559 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9560 from `int' to `unsigned int' because it's a length and initialized by
9561 EVP_DigestFinal() which expects an `unsigned int *'.
9562 [Richard Levitte <levitte@stacken.kth.se>]
9564 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9565 script. Instead use the usual Shell->Perl transition trick.
9566 [Ralf S. Engelschall]
9568 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9569 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9570 -noout -modulus' as it's already the case for `openssl rsa -noout
9571 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9572 currently the public key is printed (a decision which was already done by
9573 `openssl dsa -modulus' in the past) which serves a similar purpose.
9574 Additionally the NO_RSA no longer completely removes the whole -modulus
9575 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9577 [Ralf S. Engelschall]
9579 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9580 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9581 [Arne Ansper <arne@ats.cyber.ee>]
9583 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9584 to be added. Now both 'req' and 'ca' can use new objects defined in the
9588 *) Add cool BIO that does syslog (or event log on NT).
9589 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9591 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9592 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9593 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9594 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9597 *) Add preliminary config info for new extension code.
9600 *) Make RSA_NO_PADDING really use no padding.
9601 [Ulf Moeller <ulf@fitug.de>]
9603 *) Generate errors when private/public key check is done.
9606 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9607 for some CRL extensions and new objects added.
9610 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9611 key usage extension and fuller support for authority key id.
9614 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9615 padding method for RSA, which is recommended for new applications in PKCS
9616 #1 v2.0 (RFC 2437, October 1998).
9617 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9618 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9619 against Bleichbacher's attack on RSA.
9620 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9623 *) Updates to the new SSL compression code
9624 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9626 *) Fix so that the version number in the master secret, when passed
9627 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9628 (because the server will not accept higher), that the version number
9629 is 0x03,0x01, not 0x03,0x00
9630 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9632 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9633 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9634 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9637 *) Support for RAW extensions where an arbitrary extension can be
9638 created by including its DER encoding. See apps/openssl.cnf for
9642 *) Make sure latest Perl versions don't interpret some generated C array
9643 code as Perl array code in the crypto/err/err_genc.pl script.
9644 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9646 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9647 not many people have the assembler. Various Win32 compilation fixes and
9648 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9652 *) Modify configure script 'Configure' to automatically create crypto/date.h
9653 file under Win32 and also build pem.h from pem.org. New script
9654 util/mkfiles.pl to create the MINFO file on environments that can't do a
9655 'make files': perl util/mkfiles.pl >MINFO should work.
9658 *) Major rework of DES function declarations, in the pursuit of correctness
9659 and purity. As a result, many evil casts evaporated, and some weirdness,
9660 too. You may find this causes warnings in your code. Zapping your evil
9661 casts will probably fix them. Mostly.
9664 *) Fix for a typo in asn1.h. Bug fix to object creation script
9665 obj_dat.pl. It considered a zero in an object definition to mean
9666 "end of object": none of the objects in objects.h have any zeros
9667 so it wasn't spotted.
9668 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9670 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9671 Masking (CBCM). In the absence of test vectors, the best I have been able
9672 to do is check that the decrypt undoes the encrypt, so far. Send me test
9673 vectors if you have them.
9676 *) Correct calculation of key length for export ciphers (too much space was
9677 allocated for null ciphers). This has not been tested!
9680 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9681 message is now correct (it understands "crypto" and "ssl" on its
9682 command line). There is also now an "update" option. This will update
9683 the util/ssleay.num and util/libeay.num files with any new functions.
9685 perl util/mkdef.pl crypto ssl update
9686 it will update them.
9689 *) Overhauled the Perl interface (perl/*):
9690 - ported BN stuff to OpenSSL's different BN library
9691 - made the perl/ source tree CVS-aware
9692 - renamed the package from SSLeay to OpenSSL (the files still contain
9693 their history because I've copied them in the repository)
9694 - removed obsolete files (the test scripts will be replaced
9695 by better Test::Harness variants in the future)
9696 [Ralf S. Engelschall]
9698 *) First cut for a very conservative source tree cleanup:
9699 1. merge various obsolete readme texts into doc/ssleay.txt
9700 where we collect the old documents and readme texts.
9701 2. remove the first part of files where I'm already sure that we no
9702 longer need them because of three reasons: either they are just temporary
9703 files which were left by Eric or they are preserved original files where
9704 I've verified that the diff is also available in the CVS via "cvs diff
9705 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9706 the crypto/md/ stuff).
9707 [Ralf S. Engelschall]
9709 *) More extension code. Incomplete support for subject and issuer alt
9710 name, issuer and authority key id. Change the i2v function parameters
9711 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9712 what that's for :-) Fix to ASN1 macro which messed up
9713 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9716 *) Preliminary support for ENUMERATED type. This is largely copied from the
9720 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9721 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9723 *) Make sure `make rehash' target really finds the `openssl' program.
9724 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9726 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9727 like to hear about it if this slows down other processors.
9730 *) Add CygWin32 platform information to Configure script.
9731 [Alan Batie <batie@aahz.jf.intel.com>]
9733 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9734 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9736 *) New program nseq to manipulate netscape certificate sequences
9739 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9743 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9744 but the BN code had some problems that would cause failures when
9745 doing certificate verification and some other functions.
9746 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9748 *) Add ASN1 and PEM code to support netscape certificate sequences.
9751 *) Add ASN1 and PEM code to support netscape certificate sequences.
9754 *) Add several PKIX and private extended key usage OIDs.
9757 *) Modify the 'ca' program to handle the new extension code. Modify
9758 openssl.cnf for new extension format, add comments.
9761 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9762 and add a sample to openssl.cnf so req -x509 now adds appropriate
9766 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9767 error code, add initial support to X509_print() and x509 application.
9770 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9771 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9772 stuff is currently isolated and isn't even compiled yet.
9775 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9776 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9777 Removed the versions check from X509 routines when loading extensions:
9778 this allows certain broken certificates that don't set the version
9779 properly to be processed.
9782 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9783 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9784 can still be regenerated with "make depend".
9787 *) Spelling mistake in C version of CAST-128.
9788 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9790 *) Changes to the error generation code. The perl script err-code.pl
9791 now reads in the old error codes and retains the old numbers, only
9792 adding new ones if necessary. It also only changes the .err files if new
9793 codes are added. The makefiles have been modified to only insert errors
9794 when needed (to avoid needlessly modifying header files). This is done
9795 by only inserting errors if the .err file is newer than the auto generated
9796 C file. To rebuild all the error codes from scratch (the old behaviour)
9797 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9798 or delete all the .err files.
9801 *) CAST-128 was incorrectly implemented for short keys. The C version has
9802 been fixed, but is untested. The assembler versions are also fixed, but
9803 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9804 to regenerate it if needed.
9805 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9806 Hagino <itojun@kame.net>]
9808 *) File was opened incorrectly in randfile.c.
9809 [Ulf Möller <ulf@fitug.de>]
9811 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9812 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9813 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9814 al: it's just almost always a UTCTime. Note this patch adds new error
9815 codes so do a "make errors" if there are problems.
9818 *) Correct Linux 1 recognition in config.
9819 [Ulf Möller <ulf@fitug.de>]
9821 *) Remove pointless MD5 hash when using DSA keys in ca.
9822 [Anonymous <nobody@replay.com>]
9824 *) Generate an error if given an empty string as a cert directory. Also
9825 generate an error if handed NULL (previously returned 0 to indicate an
9826 error, but didn't set one).
9827 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9829 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9832 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9833 parameters. This was causing a warning which killed off the Win32 compile.
9836 *) Remove C++ style comments from crypto/bn/bn_local.h.
9837 [Neil Costigan <neil.costigan@celocom.com>]
9839 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9840 based on a text string, looking up short and long names and finally
9841 "dot" format. The "dot" format stuff didn't work. Added new function
9842 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9843 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9844 OID is not part of the table.
9847 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9848 X509_LOOKUP_by_alias().
9851 *) Sort openssl functions by name.
9854 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9855 encryption from sample DSA keys (in case anyone is interested the password
9859 *) Make _all_ *_free functions accept a NULL pointer.
9860 [Frans Heymans <fheymans@isaserver.be>]
9862 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9864 [Anonymous <nobody@replay.com>]
9866 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9867 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9869 *) Don't blow it for numeric -newkey arguments to apps/req.
9870 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9872 *) Temp key "for export" tests were wrong in s3_srvr.c.
9873 [Anonymous <nobody@replay.com>]
9875 *) Add prototype for temp key callback functions
9876 SSL_CTX_set_tmp_{rsa,dh}_callback().
9879 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9880 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9883 *) X509_name_add_entry() freed the wrong thing after an error.
9884 [Arne Ansper <arne@ats.cyber.ee>]
9886 *) rsa_eay.c would attempt to free a NULL context.
9887 [Arne Ansper <arne@ats.cyber.ee>]
9889 *) BIO_s_socket() had a broken should_retry() on Windoze.
9890 [Arne Ansper <arne@ats.cyber.ee>]
9892 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9893 [Arne Ansper <arne@ats.cyber.ee>]
9895 *) Make sure the already existing X509_STORE->depth variable is initialized
9896 in X509_STORE_new(), but document the fact that this variable is still
9897 unused in the certificate verification process.
9898 [Ralf S. Engelschall]
9900 *) Fix the various library and apps files to free up pkeys obtained from
9901 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9904 *) Fix reference counting in X509_PUBKEY_get(). This makes
9905 demos/maurice/example2.c work, amongst others, probably.
9906 [Steve Henson and Ben Laurie]
9908 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9909 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9910 are no longer created. This way we have a single and consistent command
9911 line interface `openssl <command>', similar to `cvs <command>'.
9912 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9914 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9915 BIT STRING wrapper always have zero unused bits.
9918 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9921 *) Make the top-level INSTALL documentation easier to understand.
9924 *) Makefiles updated to exit if an error occurs in a sub-directory
9925 make (including if user presses ^C) [Paul Sutton]
9927 *) Make Montgomery context stuff explicit in RSA data structure.
9930 *) Fix build order of pem and err to allow for generated pem.h.
9933 *) Fix renumbering bug in X509_NAME_delete_entry().
9936 *) Enhanced the err-ins.pl script so it makes the error library number
9937 global and can add a library name. This is needed for external ASN1 and
9938 other error libraries.
9941 *) Fixed sk_insert which never worked properly.
9944 *) Fix ASN1 macros so they can handle indefinite length construted
9945 EXPLICIT tags. Some non standard certificates use these: they can now
9949 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9950 into a single doc/ssleay.txt bundle. This way the information is still
9951 preserved but no longer messes up this directory. Now it's new room for
9952 the new set of documenation files.
9953 [Ralf S. Engelschall]
9955 *) SETs were incorrectly DER encoded. This was a major pain, because they
9956 shared code with SEQUENCEs, which aren't coded the same. This means that
9957 almost everything to do with SETs or SEQUENCEs has either changed name or
9958 number of arguments.
9959 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9961 *) Fix test data to work with the above.
9964 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9965 was already fixed by Eric for 0.9.1 it seems.
9966 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9968 *) Autodetect FreeBSD3.
9971 *) Fix various bugs in Configure. This affects the following platforms:
9975 unixware-2.0-pentium
9979 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9980 before they are needed.
9983 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9987 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9989 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9990 changed SSLeay to OpenSSL in version strings.
9991 [Ralf S. Engelschall]
9993 *) Some fixups to the top-level documents.
9996 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9997 because the symlink to include/ was missing.
9998 [Ralf S. Engelschall]
10000 *) Incorporated the popular no-RSA/DSA-only patches
10001 which allow to compile a RSA-free SSLeay.
10002 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10004 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10005 when "ssleay" is still not found.
10006 [Ralf S. Engelschall]
10008 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10009 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10011 *) Updated the README file.
10012 [Ralf S. Engelschall]
10014 *) Added various .cvsignore files in the CVS repository subdirs
10015 to make a "cvs update" really silent.
10016 [Ralf S. Engelschall]
10018 *) Recompiled the error-definition header files and added
10019 missing symbols to the Win32 linker tables.
10020 [Ralf S. Engelschall]
10022 *) Cleaned up the top-level documents;
10023 o new files: CHANGES and LICENSE
10024 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10025 o merged COPYRIGHT into LICENSE
10026 o removed obsolete TODO file
10027 o renamed MICROSOFT to INSTALL.W32
10028 [Ralf S. Engelschall]
10030 *) Removed dummy files from the 0.9.1b source tree:
10031 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10032 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10033 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10034 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10035 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10036 [Ralf S. Engelschall]
10038 *) Added various platform portability fixes.
10041 *) The Genesis of the OpenSSL rpject:
10042 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10043 Young and Tim J. Hudson created while they were working for C2Net until
10045 [The OpenSSL Project]
10048 Changes between 0.9.0b and 0.9.1b [not released]
10050 *) Updated a few CA certificates under certs/
10053 *) Changed some BIGNUM api stuff.
10056 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10057 DGUX x86, Linux Alpha, etc.
10060 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10061 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10065 *) Add -strparse option to asn1pars program which parses nested
10067 [Dr Stephen Henson <shenson@bigfoot.com>]
10069 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10072 *) DSA fix for "ca" program.
10075 *) Added "-genkey" option to "dsaparam" program.
10078 *) Added RIPE MD160 (rmd160) message digest.
10081 *) Added -a (all) option to "ssleay version" command.
10084 *) Added PLATFORM define which is the id given to Configure.
10087 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10090 *) Extended the ASN.1 parser routines.
10093 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10096 *) Added a BN_CTX to the BN library.
10099 *) Fixed the weak key values in DES library
10102 *) Changed API in EVP library for cipher aliases.
10105 *) Added support for RC2/64bit cipher.
10108 *) Converted the lhash library to the crypto/mem.c functions.
10111 *) Added more recognized ASN.1 object ids.
10114 *) Added more RSA padding checks for SSL/TLS.
10117 *) Added BIO proxy/filter functionality.
10120 *) Added extra_certs to SSL_CTX which can be used
10121 send extra CA certificates to the client in the CA cert chain sending
10122 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10125 *) Now Fortezza is denied in the authentication phase because
10126 this is key exchange mechanism is not supported by SSLeay at all.
10129 *) Additional PKCS1 checks.
10132 *) Support the string "TLSv1" for all TLS v1 ciphers.
10135 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10136 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10139 *) Fixed a few memory leaks.
10142 *) Fixed various code and comment typos.
10145 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10146 bytes sent in the client random.
10147 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob