5 Changes between 1.0.1 and 1.0.2 [xx XXX xxxx]
7 *) New functions to retrieve certificate signature and signature
11 *) If server EC tmp key is not in client preference list abort handshake.
14 *) Add support for certificate stores in CERT structure. This makes it
15 possible to have different stores per SSL structure or one store in
16 the parent SSL_CTX. Include distint stores for certificate chain
17 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
18 to build and store a certificate chain in CERT structure: returing
19 an error if the chain cannot be built: this will allow applications
20 to test if a chain is correctly configured.
22 Note: if the CERT based stores are not set then the parent SSL_CTX
23 store is used to retain compatibility with existing behaviour.
27 *) New function ssl_set_client_disabled to set a ciphersuite disabled
28 mask based on the current session, check mask when sending client
29 hello and checking the requested ciphersuite.
32 *) New ctrls to retrieve and set certificate types in a certificate
33 request message. Print out received values in s_client. If certificate
34 types is not set with custom values set sensible values based on
35 supported signature algorithms.
38 *) Support for distinct client and server supported signature algorithms.
41 *) Add certificate callback. If set this is called whenever a certificate
42 is required by client or server. An application can decide which
43 certificate chain to present based on arbitrary criteria: for example
44 supported signature algorithms. Add very simple example to s_server.
45 This fixes many of the problems and restrictions of the existing client
46 certificate callback: for example you can now clear an existing
47 certificate and specify the whole chain.
50 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
51 the certificate can be used for (if anything). Set valid_flags field
52 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
53 to have similar checks in it.
55 Add new "cert_flags" field to CERT structure and include a "strict mode".
56 This enforces some TLS certificate requirements (such as only permitting
57 certificate signature algorithms contained in the supported algorithms
58 extension) which some implementations ignore: this option should be used
59 with caution as it could cause interoperability issues.
62 *) Update and tidy signature algorithm extension processing. Work out
63 shared signature algorithms based on preferences and peer algorithms
64 and print them out in s_client and s_server. Abort handshake if no
65 shared signature algorithms.
68 *) Add new functions to allow customised supported signature algorithms
69 for SSL and SSL_CTX structures. Add options to s_client and s_server
73 *) New function SSL_certs_clear() to delete all references to certificates
74 from an SSL structure. Before this once a certificate had been added
75 it couldn't be removed.
78 *) Integrate hostname, email address and IP address checking with certificate
79 verification. New verify options supporting checking in opensl utility.
82 *) Fixes and wildcard matching support to hostname and email checking
83 functions. Add manual page.
84 [Florian Weimer (Red Hat Product Security Team)]
86 *) New functions to check a hostname email or IP address against a
87 certificate. Add options x509 utility to print results of checks against
92 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
94 *) Backport support for partial chain verification: if an intermediate
95 certificate is explicitly trusted (using -addtrust option to x509
96 utility for example) the verification is sucessful even if the chain
98 The OCSP checking fix depends on this backport.
99 [Steve Henson and Rob Stradling <rob.stradling@comodo.com>]
101 *) Add -trusted_first option which attempts to find certificates in the
102 trusted store even if an untrusted chain is also supplied.
105 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
106 platform support for Linux and Android.
109 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
110 the right response is stapled. Also change current certificate to
111 the certificate actually sent.
112 See http://rt.openssl.org/Ticket/Display.html?id=2836.
113 [Rob Stradling <rob.stradling@comodo.com>]
115 *) Support for linux-x32, ILP32 environment in x86_64 framework.
119 [Emilia Kasper, Adam Langley, Ben Laurie (Google)]
121 *) Experimental multi-implementation support for FIPS capable OpenSSL.
122 When in FIPS mode the approved implementations are used as normal,
123 when not in FIPS mode the internal unapproved versions are used instead.
124 This means that the FIPS capable OpenSSL isn't forced to use the
125 (often lower perfomance) FIPS implementations outside FIPS mode.
128 *) Transparently support X9.42 DH parameters when calling
129 PEM_read_bio_DHparameters. This means existing applications can handle
130 the new parameter format automatically.
133 *) Initial experimental support for X9.42 DH parameter format: mainly
134 to support use of 'q' parameter for RFC5114 parameters.
137 *) Add DH parameters from RFC5114 including test data to dhtest.
140 *) Support for automatic EC temporary key parameter selection. If enabled
141 the most preferred EC parameters are automatically used instead of
142 hardcoded fixed parameters. Now a server just has to call:
143 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
144 support ECDH and use the most appropriate parameters.
147 *) Enhance and tidy EC curve and point format TLS extension code. Use
148 static structures instead of allocation if default values are used.
149 New ctrls to set curves we wish to support and to retrieve shared curves.
150 Print out shared curves in s_server. New options to s_server and s_client
151 to set list of supported curves.
154 *) New ctrls to retrieve supported signature algorithms and
155 supported curve values as an array of NIDs. Extend openssl utility
156 to print out received values.
159 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
160 between NIDs and the more common NIST names such as "P-256". Enhance
161 ecparam utility and ECC method to recognise the NIST names for curves.
164 *) Enhance SSL/TLS certificate chain handling to support different
165 chains for each certificate instead of one chain in the parent SSL_CTX.
168 *) Support for fixed DH ciphersuite client authentication: where both
169 server and client use DH certificates with common parameters.
172 *) Support for fixed DH ciphersuites: those requiring DH server
176 Changes between 1.0.1c and 1.0.1d [xx XXX xxxx]
178 *) Make openssl verify return errors.
179 [Chris Palmer <palmer@google.com> and Ben Laurie]
181 *) Fix possible deadlock when decoding public keys.
184 *) Don't use TLS 1.0 record version number in initial client hello
188 Changes between 1.0.1b and 1.0.1c [10 May 2012]
190 *) Sanity check record length before skipping explicit IV in TLS
191 1.2, 1.1 and DTLS to avoid DoS attack.
193 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
194 fuzzing as a service testing platform.
198 *) Initialise tkeylen properly when encrypting CMS messages.
199 Thanks to Solar Designer of Openwall for reporting this issue.
202 *) In FIPS mode don't try to use composite ciphers as they are not
206 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
208 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
209 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
210 mean any application compiled against OpenSSL 1.0.0 headers setting
211 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
212 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
213 0x10000000L Any application which was previously compiled against
214 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
215 will need to be recompiled as a result. Letting be results in
216 inability to disable specifically TLS 1.1 and in client context,
217 in unlike event, limit maximum offered version to TLS 1.0 [see below].
220 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
221 disable just protocol X, but all protocols above X *if* there are
222 protocols *below* X still enabled. In more practical terms it means
223 that if application wants to disable TLS1.0 in favor of TLS1.1 and
224 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
225 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
229 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
231 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
232 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
233 in CRYPTO_realloc_clean.
235 Thanks to Tavis Ormandy, Google Security Team, for discovering this
236 issue and to Adam Langley <agl@chromium.org> for fixing it.
238 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
240 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
243 *) Workarounds for some broken servers that "hang" if a client hello
244 record length exceeds 255 bytes:
246 1. Do not use record version number > TLS 1.0 in initial client
247 hello: some (but not all) hanging servers will now work.
248 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
249 the number of ciphers sent in the client hello. This should be
250 set to an even number, such as 50, for example by passing:
251 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
252 Most broken servers should now work.
253 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
254 TLS 1.2 client support entirely.
257 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
260 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
262 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
263 STRING form instead of a DigestInfo.
266 *) The format used for MDC2 RSA signatures is inconsistent between EVP
267 and the RSA_sign/RSA_verify functions. This was made more apparent when
268 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
269 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
270 the correct format in RSA_verify so both forms transparently work.
273 *) Some servers which support TLS 1.0 can choke if we initially indicate
274 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
275 encrypted premaster secret. As a workaround use the maximum pemitted
276 client version in client hello, this should keep such servers happy
277 and still work with previous versions of OpenSSL.
280 *) Add support for TLS/DTLS heartbeats.
281 [Robin Seggelmann <seggelmann@fh-muenster.de>]
283 *) Add support for SCTP.
284 [Robin Seggelmann <seggelmann@fh-muenster.de>]
286 *) Improved PRNG seeding for VOS.
287 [Paul Green <Paul.Green@stratus.com>]
289 *) Extensive assembler packs updates, most notably:
291 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
292 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
293 - x86_64: bit-sliced AES implementation;
294 - ARM: NEON support, contemporary platforms optimizations;
295 - s390x: z196 support;
296 - *: GHASH and GF(2^m) multiplication implementations;
300 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
301 (removal of unnecessary code)
302 [Peter Sylvester <peter.sylvester@edelweb.fr>]
304 *) Add TLS key material exporter from RFC 5705.
307 *) Add DTLS-SRTP negotiation from RFC 5764.
310 *) Add Next Protocol Negotiation,
311 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
312 disabled with a no-npn flag to config or Configure. Code donated
314 [Adam Langley <agl@google.com> and Ben Laurie]
316 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
317 NIST-P256, NIST-P521, with constant-time single point multiplication on
318 typical inputs. Compiler support for the nonstandard type __uint128_t is
319 required to use this (present in gcc 4.4 and later, for 64-bit builds).
320 Code made available under Apache License version 2.0.
322 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
323 line to include this in your build of OpenSSL, and run "make depend" (or
324 "make update"). This enables the following EC_METHODs:
326 EC_GFp_nistp224_method()
327 EC_GFp_nistp256_method()
328 EC_GFp_nistp521_method()
330 EC_GROUP_new_by_curve_name() will automatically use these (while
331 EC_GROUP_new_curve_GFp() currently prefers the more flexible
333 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
335 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
336 all platforms. Move ssize_t definition from e_os.h to the public
337 header file e_os2.h as it now appears in public header file cms.h
340 *) New -sigopt option to the ca, req and x509 utilities. Additional
341 signature parameters can be passed using this option and in
345 *) Add RSA PSS signing function. This will generate and set the
346 appropriate AlgorithmIdentifiers for PSS based on those in the
347 corresponding EVP_MD_CTX structure. No application support yet.
350 *) Support for companion algorithm specific ASN1 signing routines.
351 New function ASN1_item_sign_ctx() signs a pre-initialised
352 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
353 the appropriate parameters.
356 *) Add new algorithm specific ASN1 verification initialisation function
357 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
358 handling will be the same no matter what EVP_PKEY_METHOD is used.
359 Add a PSS handler to support verification of PSS signatures: checked
360 against a number of sample certificates.
363 *) Add signature printing for PSS. Add PSS OIDs.
364 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
366 *) Add algorithm specific signature printing. An individual ASN1 method
367 can now print out signatures instead of the standard hex dump.
369 More complex signatures (e.g. PSS) can print out more meaningful
370 information. Include DSA version that prints out the signature
374 *) Password based recipient info support for CMS library: implementing
378 *) Split password based encryption into PBES2 and PBKDF2 functions. This
379 neatly separates the code into cipher and PBE sections and is required
380 for some algorithms that split PBES2 into separate pieces (such as
384 *) Session-handling fixes:
385 - Fix handling of connections that are resuming with a session ID,
386 but also support Session Tickets.
387 - Fix a bug that suppressed issuing of a new ticket if the client
388 presented a ticket with an expired session.
389 - Try to set the ticket lifetime hint to something reasonable.
390 - Make tickets shorter by excluding irrelevant information.
391 - On the client side, don't ignore renewed tickets.
392 [Adam Langley, Bodo Moeller (Google)]
394 *) Fix PSK session representation.
397 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
399 This work was sponsored by Intel.
402 *) Add GCM support to TLS library. Some custom code is needed to split
403 the IV between the fixed (from PRF) and explicit (from TLS record)
404 portions. This adds all GCM ciphersuites supported by RFC5288 and
405 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
406 add a special AESGCM string for GCM only.
409 *) Expand range of ctrls for AES GCM. Permit setting invocation
410 field on decrypt and retrieval of invocation field only on encrypt.
413 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
414 As required by RFC5289 these ciphersuites cannot be used if for
415 versions of TLS earlier than 1.2.
418 *) For FIPS capable OpenSSL interpret a NULL default public key method
419 as unset and return the appopriate default but do *not* set the default.
420 This means we can return the appopriate method in applications that
421 swicth between FIPS and non-FIPS modes.
424 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
425 ENGINE is used then we cannot handle that in the FIPS module so we
426 keep original code iff non-FIPS operations are allowed.
429 *) Add -attime option to openssl utilities.
430 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
432 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
435 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
436 FIPS EC methods unconditionally for now.
439 *) New build option no-ec2m to disable characteristic 2 code.
442 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
443 all cases can be covered as some introduce binary incompatibilities.
446 *) Redirect RSA operations to FIPS module including keygen,
447 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
450 *) Add similar low level API blocking to ciphers.
453 *) Low level digest APIs are not approved in FIPS mode: any attempt
454 to use these will cause a fatal error. Applications that *really* want
455 to use them can use the private_* version instead.
458 *) Redirect cipher operations to FIPS module for FIPS builds.
461 *) Redirect digest operations to FIPS module for FIPS builds.
464 *) Update build system to add "fips" flag which will link in fipscanister.o
465 for static and shared library builds embedding a signature if needed.
468 *) Output TLS supported curves in preference order instead of numerical
469 order. This is currently hardcoded for the highest order curves first.
470 This should be configurable so applications can judge speed vs strength.
473 *) Add TLS v1.2 server support for client authentication.
476 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
480 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
481 FIPS modules versions.
484 *) Add TLS v1.2 client side support for client authentication. Keep cache
485 of handshake records longer as we don't know the hash algorithm to use
486 until after the certificate request message is received.
489 *) Initial TLS v1.2 client support. Add a default signature algorithms
490 extension including all the algorithms we support. Parse new signature
491 format in client key exchange. Relax some ECC signing restrictions for
492 TLS v1.2 as indicated in RFC5246.
495 *) Add server support for TLS v1.2 signature algorithms extension. Switch
496 to new signature format when needed using client digest preference.
497 All server ciphersuites should now work correctly in TLS v1.2. No client
498 support yet and no support for client certificates.
501 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
502 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
503 ciphersuites. At present only RSA key exchange ciphersuites work with
504 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
505 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
506 and version checking.
509 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
510 with this defined it will not be affected by any changes to ssl internal
511 structures. Add several utility functions to allow openssl application
512 to work with OPENSSL_NO_SSL_INTERN defined.
516 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
518 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
521 *) Permit abbreviated handshakes when renegotiating using the function
522 SSL_renegotiate_abbreviated().
523 [Robin Seggelmann <seggelmann@fh-muenster.de>]
525 *) Add call to ENGINE_register_all_complete() to
526 ENGINE_load_builtin_engines(), so some implementations get used
527 automatically instead of needing explicit application support.
530 *) Add support for TLS key exporter as described in RFC5705.
531 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
533 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
534 a few changes are required:
536 Add SSL_OP_NO_TLSv1_1 flag.
538 Update version checking logic to handle version 1.1.
539 Add explicit IV handling (ported from DTLS code).
540 Add command line options to s_client/s_server.
543 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
545 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
546 in CMS and PKCS7 code. When RSA decryption fails use a random key for
547 content decryption and always return the same error. Note: this attack
548 needs on average 2^20 messages so it only affects automated senders. The
549 old behaviour can be reenabled in the CMS code by setting the
550 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
551 an MMA defence is not necessary.
552 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
553 this issue. (CVE-2012-0884)
556 *) Fix CVE-2011-4619: make sure we really are receiving a
557 client hello before rejecting multiple SGC restarts. Thanks to
558 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
561 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
563 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
564 Thanks to Antonio Martin, Enterprise Secure Access Research and
565 Development, Cisco Systems, Inc. for discovering this bug and
566 preparing a fix. (CVE-2012-0050)
569 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
571 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
572 of the Vaudenay padding oracle attack on CBC mode encryption
573 which enables an efficient plaintext recovery attack against
574 the OpenSSL implementation of DTLS. Their attack exploits timing
575 differences arising during decryption processing. A research
576 paper describing this attack can be found at:
577 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
578 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
579 Security Group at Royal Holloway, University of London
580 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
581 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
582 for preparing the fix. (CVE-2011-4108)
583 [Robin Seggelmann, Michael Tuexen]
585 *) Clear bytes used for block padding of SSL 3.0 records.
587 [Adam Langley (Google)]
589 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
590 Kadianakis <desnacked@gmail.com> for discovering this issue and
591 Adam Langley for preparing the fix. (CVE-2011-4619)
592 [Adam Langley (Google)]
594 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
595 [Andrey Kulikov <amdeich@gmail.com>]
597 *) Prevent malformed RFC3779 data triggering an assertion failure.
598 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
599 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
600 [Rob Austein <sra@hactrn.net>]
602 *) Improved PRNG seeding for VOS.
603 [Paul Green <Paul.Green@stratus.com>]
605 *) Fix ssl_ciph.c set-up race.
606 [Adam Langley (Google)]
608 *) Fix spurious failures in ecdsatest.c.
609 [Emilia Käsper (Google)]
611 *) Fix the BIO_f_buffer() implementation (which was mixing different
612 interpretations of the '..._len' fields).
613 [Adam Langley (Google)]
615 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
616 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
617 threads won't reuse the same blinding coefficients.
619 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
620 lock to call BN_BLINDING_invert_ex, and avoids one use of
621 BN_BLINDING_update for each BN_BLINDING structure (previously,
622 the last update always remained unused).
623 [Emilia Käsper (Google)]
625 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
626 [Bob Buckholz (Google)]
628 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
630 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
631 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
632 [Kaspar Brand <ossl@velox.ch>]
634 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
635 for multi-threaded use of ECDH. (CVE-2011-3210)
636 [Adam Langley (Google)]
638 *) Fix x509_name_ex_d2i memory leak on bad inputs.
641 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
642 signature public key algorithm by using OID xref utilities instead.
643 Before this you could only use some ECC ciphersuites with SHA1 only.
646 *) Add protection against ECDSA timing attacks as mentioned in the paper
647 by Billy Bob Brumley and Nicola Tuveri, see:
649 http://eprint.iacr.org/2011/232.pdf
651 [Billy Bob Brumley and Nicola Tuveri]
653 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
655 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
656 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
658 *) Fix bug in string printing code: if *any* escaping is enabled we must
659 escape the escape character (backslash) or the resulting string is
663 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
665 *) Disable code workaround for ancient and obsolete Netscape browsers
666 and servers: an attacker can use it in a ciphersuite downgrade attack.
667 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
670 *) Fixed J-PAKE implementation error, originally discovered by
671 Sebastien Martini, further info and confirmation from Stefan
672 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
675 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
677 *) Fix extension code to avoid race conditions which can result in a buffer
678 overrun vulnerability: resumed sessions must not be modified as they can
679 be shared by multiple threads. CVE-2010-3864
682 *) Fix WIN32 build system to correctly link an ENGINE directory into
686 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
688 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
690 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
692 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
694 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
695 context. The operation can be customised via the ctrl mechanism in
696 case ENGINEs want to include additional functionality.
699 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
702 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
703 output hashes compatible with older versions of OpenSSL.
704 [Willy Weisz <weisz@vcpc.univie.ac.at>]
706 *) Fix compression algorithm handling: if resuming a session use the
707 compression algorithm of the resumed session instead of determining
708 it from client hello again. Don't allow server to change algorithm.
711 *) Add load_crls() function to apps tidying load_certs() too. Add option
712 to verify utility to allow additional CRLs to be included.
715 *) Update OCSP request code to permit adding custom headers to the request:
716 some responders need this.
719 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
721 [Julia Lawall <julia@diku.dk>]
723 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
724 needlessly dereferenced structures, used obsolete functions and
725 didn't handle all updated verify codes correctly.
728 *) Disable MD2 in the default configuration.
731 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
732 indicate the initial BIO being pushed or popped. This makes it possible
733 to determine whether the BIO is the one explicitly called or as a result
734 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
735 it handles reference counts correctly and doesn't zero out the I/O bio
736 when it is not being explicitly popped. WARNING: applications which
737 included workarounds for the old buggy behaviour will need to be modified
738 or they could free up already freed BIOs.
741 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
742 renaming to all platforms (within the 0.9.8 branch, this was
743 done conditionally on Netware platforms to avoid a name clash).
744 [Guenter <lists@gknw.net>]
746 *) Add ECDHE and PSK support to DTLS.
747 [Michael Tuexen <tuexen@fh-muenster.de>]
749 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
753 *) Add "missing" function EVP_MD_flags() (without this the only way to
754 retrieve a digest flags is by accessing the structure directly. Update
755 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
756 or cipher is registered as in the "from" argument. Print out all
757 registered digests in the dgst usage message instead of manually
758 attempting to work them out.
761 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
762 this allows the use of compression and extensions. Change default cipher
763 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
764 by default unless an application cipher string requests it.
767 *) Alter match criteria in PKCS12_parse(). It used to try to use local
768 key ids to find matching certificates and keys but some PKCS#12 files
769 don't follow the (somewhat unwritten) rules and this strategy fails.
770 Now just gather all certificates together and the first private key
771 then look for the first certificate that matches the key.
774 *) Support use of registered digest and cipher names for dgst and cipher
775 commands instead of having to add each one as a special case. So now
782 openssl dgst -sha256 foo
784 and this works for ENGINE based algorithms too.
788 *) Update Gost ENGINE to support parameter files.
789 [Victor B. Wagner <vitus@cryptocom.ru>]
791 *) Support GeneralizedTime in ca utility.
792 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
794 *) Enhance the hash format used for certificate directory links. The new
795 form uses the canonical encoding (meaning equivalent names will work
796 even if they aren't identical) and uses SHA1 instead of MD5. This form
797 is incompatible with the older format and as a result c_rehash should
798 be used to rebuild symbolic links.
801 *) Make PKCS#8 the default write format for private keys, replacing the
802 traditional format. This form is standardised, more secure and doesn't
803 include an implicit MD5 dependency.
806 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
807 committed to OpenSSL should pass this lot as a minimum.
810 *) Add session ticket override functionality for use by EAP-FAST.
811 [Jouni Malinen <j@w1.fi>]
813 *) Modify HMAC functions to return a value. Since these can be implemented
814 in an ENGINE errors can occur.
817 *) Type-checked OBJ_bsearch_ex.
820 *) Type-checked OBJ_bsearch. Also some constification necessitated
821 by type-checking. Still to come: TXT_DB, bsearch(?),
822 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
826 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
827 seconds to a tm structure directly, instead of going through OS
828 specific date routines. This avoids any issues with OS routines such
829 as the year 2038 bug. New *_adj() functions for ASN1 time structures
830 and X509_time_adj_ex() to cover the extended range. The existing
831 X509_time_adj() is still usable and will no longer have any date issues.
834 *) Delta CRL support. New use deltas option which will attempt to locate
835 and search any appropriate delta CRLs available.
837 This work was sponsored by Google.
840 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
841 code and add additional score elements. Validate alternate CRL paths
842 as part of the CRL checking and indicate a new error "CRL path validation
843 error" in this case. Applications wanting additional details can use
844 the verify callback and check the new "parent" field. If this is not
845 NULL CRL path validation is taking place. Existing applications wont
846 see this because it requires extended CRL support which is off by
849 This work was sponsored by Google.
852 *) Support for freshest CRL extension.
854 This work was sponsored by Google.
857 *) Initial indirect CRL support. Currently only supported in the CRLs
858 passed directly and not via lookup. Process certificate issuer
859 CRL entry extension and lookup CRL entries by bother issuer name
860 and serial number. Check and process CRL issuer entry in IDP extension.
862 This work was sponsored by Google.
865 *) Add support for distinct certificate and CRL paths. The CRL issuer
866 certificate is validated separately in this case. Only enabled if
867 an extended CRL support flag is set: this flag will enable additional
868 CRL functionality in future.
870 This work was sponsored by Google.
873 *) Add support for policy mappings extension.
875 This work was sponsored by Google.
878 *) Fixes to pathlength constraint, self issued certificate handling,
879 policy processing to align with RFC3280 and PKITS tests.
881 This work was sponsored by Google.
884 *) Support for name constraints certificate extension. DN, email, DNS
885 and URI types are currently supported.
887 This work was sponsored by Google.
890 *) To cater for systems that provide a pointer-based thread ID rather
891 than numeric, deprecate the current numeric thread ID mechanism and
892 replace it with a structure and associated callback type. This
893 mechanism allows a numeric "hash" to be extracted from a thread ID in
894 either case, and on platforms where pointers are larger than 'long',
895 mixing is done to help ensure the numeric 'hash' is usable even if it
896 can't be guaranteed unique. The default mechanism is to use "&errno"
897 as a pointer-based thread ID to distinguish between threads.
899 Applications that want to provide their own thread IDs should now use
900 CRYPTO_THREADID_set_callback() to register a callback that will call
901 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
903 Note that ERR_remove_state() is now deprecated, because it is tied
904 to the assumption that thread IDs are numeric. ERR_remove_state(0)
905 to free the current thread's error state should be replaced by
906 ERR_remove_thread_state(NULL).
908 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
909 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
910 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
911 application was previously providing a numeric thread callback that
912 was inappropriate for distinguishing threads, then uniqueness might
913 have been obtained with &errno that happened immediately in the
914 intermediate development versions of OpenSSL; this is no longer the
915 case, the numeric thread callback will now override the automatic use
917 [Geoff Thorpe, with help from Bodo Moeller]
919 *) Initial support for different CRL issuing certificates. This covers a
920 simple case where the self issued certificates in the chain exist and
921 the real CRL issuer is higher in the existing chain.
923 This work was sponsored by Google.
926 *) Removed effectively defunct crypto/store from the build.
929 *) Revamp of STACK to provide stronger type-checking. Still to come:
930 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
931 ASN1_STRING, CONF_VALUE.
934 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
935 RAM on SSL connections. This option can save about 34k per idle SSL.
938 *) Revamp of LHASH to provide stronger type-checking. Still to come:
939 STACK, TXT_DB, bsearch, qsort.
942 *) Initial support for Cryptographic Message Syntax (aka CMS) based
943 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
944 support for data, signedData, compressedData, digestedData and
945 encryptedData, envelopedData types included. Scripts to check against
946 RFC4134 examples draft and interop and consistency checks of many
947 content types and variants.
950 *) Add options to enc utility to support use of zlib compression BIO.
953 *) Extend mk1mf to support importing of options and assembly language
954 files from Configure script, currently only included in VC-WIN32.
955 The assembly language rules can now optionally generate the source
956 files from the associated perl scripts.
959 *) Implement remaining functionality needed to support GOST ciphersuites.
960 Interop testing has been performed using CryptoPro implementations.
961 [Victor B. Wagner <vitus@cryptocom.ru>]
963 *) s390x assembler pack.
966 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
970 *) Implement Opaque PRF Input TLS extension as specified in
971 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
972 official specification yet and no extension type assignment by
973 IANA exists, this extension (for now) will have to be explicitly
974 enabled when building OpenSSL by providing the extension number
975 to use. For example, specify an option
977 -DTLSEXT_TYPE_opaque_prf_input=0x9527
979 to the "config" or "Configure" script to enable the extension,
980 assuming extension number 0x9527 (which is a completely arbitrary
981 and unofficial assignment based on the MD5 hash of the Internet
982 Draft). Note that by doing so, you potentially lose
983 interoperability with other TLS implementations since these might
984 be using the same extension number for other purposes.
986 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
987 opaque PRF input value to use in the handshake. This will create
988 an interal copy of the length-'len' string at 'src', and will
989 return non-zero for success.
991 To get more control and flexibility, provide a callback function
994 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
995 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
999 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1002 Callback function 'cb' will be called in handshakes, and is
1003 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1004 Argument 'arg' is for application purposes (the value as given to
1005 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1006 be provided to the callback function). The callback function
1007 has to return non-zero to report success: usually 1 to use opaque
1008 PRF input just if possible, or 2 to enforce use of the opaque PRF
1009 input. In the latter case, the library will abort the handshake
1010 if opaque PRF input is not successfully negotiated.
1012 Arguments 'peerinput' and 'len' given to the callback function
1013 will always be NULL and 0 in the case of a client. A server will
1014 see the client's opaque PRF input through these variables if
1015 available (NULL and 0 otherwise). Note that if the server
1016 provides an opaque PRF input, the length must be the same as the
1017 length of the client's opaque PRF input.
1019 Note that the callback function will only be called when creating
1020 a new session (session resumption can resume whatever was
1021 previously negotiated), and will not be called in SSL 2.0
1022 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1023 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1024 for applications that need to enforce opaque PRF input.
1028 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1031 [Victor B. Wagner <vitus@cryptocom.ru>]
1033 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1034 RFC4507bis. The encrypted ticket format is an encrypted encoded
1035 SSL_SESSION structure, that way new session features are automatically
1038 If a client application caches session in an SSL_SESSION structure
1039 support is transparent because tickets are now stored in the encoded
1042 The SSL_CTX structure automatically generates keys for ticket
1043 protection in servers so again support should be possible
1044 with no application modification.
1046 If a client or server wishes to disable RFC4507 support then the option
1047 SSL_OP_NO_TICKET can be set.
1049 Add a TLS extension debugging callback to allow the contents of any client
1050 or server extensions to be examined.
1052 This work was sponsored by Google.
1055 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1056 OpenSSL should now compile cleanly on gcc 4.2
1057 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1059 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1060 support including streaming MAC support: this is required for GOST
1061 ciphersuite support.
1062 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1064 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1065 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1066 to output in BER and PEM format.
1069 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1070 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1071 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1072 ENGINE support for HMAC keys which are unextractable. New -mac and
1073 -macopt options to dgst utility.
1076 *) New option -sigopt to dgst utility. Update dgst to use
1077 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1078 alternative signing paramaters such as X9.31 or PSS in the dgst
1082 *) Change ssl_cipher_apply_rule(), the internal function that does
1083 the work each time a ciphersuite string requests enabling
1084 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1085 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1086 the order of disabled ciphersuites such that those ciphersuites
1087 that most recently went from enabled to disabled not only stay
1088 in order with respect to each other, but also have higher priority
1089 than other disabled ciphersuites the next time ciphersuites are
1092 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1093 the same ciphersuites as with "HIGH" alone, but in a specific
1094 order where the PSK ciphersuites come first (since they are the
1095 most recently disabled ciphersuites when "HIGH" is parsed).
1097 Also, change ssl_create_cipher_list() (using this new
1098 funcionality) such that between otherwise identical
1099 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1103 *) Change ssl_create_cipher_list() so that it automatically
1104 arranges the ciphersuites in reasonable order before starting
1105 to process the rule string. Thus, the definition for "DEFAULT"
1106 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1107 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1108 This makes it much easier to arrive at a reasonable default order
1109 in applications for which anonymous ciphers are OK (meaning
1110 that you can't actually use DEFAULT).
1111 [Bodo Moeller; suggested by Victor Duchovni]
1113 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1114 processing) into multiple integers instead of setting
1115 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1116 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1117 (These masks as well as the individual bit definitions are hidden
1118 away into the non-exported interface ssl/ssl_locl.h, so this
1119 change to the definition of the SSL_CIPHER structure shouldn't
1120 affect applications.) This give us more bits for each of these
1121 categories, so there is no longer a need to coagulate AES128 and
1122 AES256 into a single algorithm bit, and to coagulate Camellia128
1123 and Camellia256 into a single algorithm bit, which has led to all
1126 Thus, among other things, the kludge introduced in 0.9.7m and
1127 0.9.8e for masking out AES256 independently of AES128 or masking
1128 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1130 With the change, we also introduce new ciphersuite aliases that
1131 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1135 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1136 Use the leftmost N bytes of the signature input if the input is
1137 larger than the prime q (with N being the size in bytes of q).
1140 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1141 it yet and it is largely untested.
1144 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1147 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1148 some compilers (gcc 4.2 and later) reject their use. Safestack is
1149 reimplemented. Update ASN1 to avoid use of legacy functions.
1152 *) Win32/64 targets are linked with Winsock2.
1155 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1156 to external functions. This can be used to increase CRL handling
1157 efficiency especially when CRLs are very large by (for example) storing
1158 the CRL revoked certificates in a database.
1161 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1162 new CRLs added to a directory can be used. New command line option
1163 -verify_return_error to s_client and s_server. This causes real errors
1164 to be returned by the verify callback instead of carrying on no matter
1165 what. This reflects the way a "real world" verify callback would behave.
1168 *) GOST engine, supporting several GOST algorithms and public key formats.
1169 Kindly donated by Cryptocom.
1172 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1173 partitioned by DP are handled but no indirect CRL or reason partitioning
1174 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1175 selected via a scoring technique which handles IDP and AKID in CRLs.
1178 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1179 will ultimately be used for all verify operations: this will remove the
1180 X509_STORE dependency on certificate verification and allow alternative
1181 lookup methods. X509_STORE based implementations of these two callbacks.
1184 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1185 Modify get_crl() to find a valid (unexpired) CRL if possible.
1188 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1189 this would be called X509_CRL_cmp() but that name is already used by
1190 a function that just compares CRL issuer names. Cache several CRL
1191 extensions in X509_CRL structure and cache CRLDP in X509.
1194 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1195 this maps equivalent X509_NAME structures into a consistent structure.
1196 Name comparison can then be performed rapidly using memcmp().
1199 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1203 *) Allow digests to supply their own micalg string for S/MIME type using
1204 the ctrl EVP_MD_CTRL_MICALG.
1207 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1208 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1209 ctrl. It can then customise the structure before and/or after signing
1213 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1214 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1215 to free up any added signature OIDs.
1218 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1219 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1220 digest and cipher tables. New options added to openssl utility:
1221 list-message-digest-algorithms and list-cipher-algorithms.
1224 *) Change the array representation of binary polynomials: the list
1225 of degrees of non-zero coefficients is now terminated with -1.
1226 Previously it was terminated with 0, which was also part of the
1227 value; thus, the array representation was not applicable to
1228 polynomials where t^0 has coefficient zero. This change makes
1229 the array representation useful in a more general context.
1232 *) Various modifications and fixes to SSL/TLS cipher string
1233 handling. For ECC, the code now distinguishes between fixed ECDH
1234 with RSA certificates on the one hand and with ECDSA certificates
1235 on the other hand, since these are separate ciphersuites. The
1236 unused code for Fortezza ciphersuites has been removed.
1238 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1239 (not "ECDHE"). For consistency with the code for DH
1240 certificates, use of ECDH certificates is now considered ECDH
1241 authentication, not RSA or ECDSA authentication (the latter is
1242 merely the CA's signing algorithm and not actively used in the
1245 The temporary ciphersuite alias "ECCdraft" is no longer
1246 available, and ECC ciphersuites are no longer excluded from "ALL"
1247 and "DEFAULT". The following aliases now exist for RFC 4492
1248 ciphersuites, most of these by analogy with the DH case:
1250 kECDHr - ECDH cert, signed with RSA
1251 kECDHe - ECDH cert, signed with ECDSA
1252 kECDH - ECDH cert (signed with either RSA or ECDSA)
1253 kEECDH - ephemeral ECDH
1254 ECDH - ECDH cert or ephemeral ECDH
1260 AECDH - anonymous ECDH
1261 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1265 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1266 Use correct micalg parameters depending on digest(s) in signed message.
1269 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1270 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1273 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1274 an engine to register a method. Add ENGINE lookups for methods and
1275 functional reference processing.
1278 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1279 EVP_{Sign,Verify}* which allow an application to customise the signature
1283 *) New -resign option to smime utility. This adds one or more signers
1284 to an existing PKCS#7 signedData structure. Also -md option to use an
1285 alternative message digest algorithm for signing.
1288 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1289 create PKCS7 structures containing multiple signers. Update smime
1290 application to support multiple signers.
1293 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1297 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1298 Reorganize PBE internals to lookup from a static table using NIDs,
1299 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1300 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1301 PRF which will be automatically used with PBES2.
1304 *) Replace the algorithm specific calls to generate keys in "req" with the
1308 *) Update PKCS#7 enveloped data routines to use new API. This is now
1309 supported by any public key method supporting the encrypt operation. A
1310 ctrl is added to allow the public key algorithm to examine or modify
1311 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1315 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1316 a default digest type to use. In most cases this will be SHA1 but some
1317 algorithms (such as GOST) need to specify an alternative digest. The
1318 return value indicates how strong the prefernce is 1 means optional and
1319 2 is mandatory (that is it is the only supported type). Modify
1320 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1321 use the default md. Update openssl utilities to use the default digest
1322 type for signing if it is not explicitly indicated.
1325 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1326 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1327 signing method from the key type. This effectively removes the link
1328 between digests and public key types.
1331 *) Add an OID cross reference table and utility functions. Its purpose is to
1332 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1333 rsaEncryption. This will allow some of the algorithm specific hackery
1334 needed to use the correct OID to be removed.
1337 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1338 structures for PKCS7_sign(). They are now set up by the relevant public
1342 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1345 *) Add support for key derivation (agreement) in the API, DH method and
1349 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1350 public and private key formats. As a side effect these add additional
1351 command line functionality not previously available: DSA signatures can be
1352 generated and verified using pkeyutl and DH key support and generation in
1357 [Oliver Tappe <zooey@hirschkaefer.de>]
1359 *) New make target "install_html_docs" installs HTML renditions of the
1361 [Oliver Tappe <zooey@hirschkaefer.de>]
1363 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1364 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1365 support key and parameter generation and add initial key generation
1366 functionality for RSA.
1369 *) Add functions for main EVP_PKEY_method operations. The undocumented
1370 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1371 EVP_PKEY_{encrypt,decrypt}_old.
1374 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1375 key API, doesn't do much yet.
1378 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1379 public key algorithms. New option to openssl utility:
1380 "list-public-key-algorithms" to print out info.
1383 *) Implement the Supported Elliptic Curves Extension for
1384 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1387 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1388 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1391 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1392 utilities such as rsa, dsa, dsaparam etc except they process any key
1396 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1397 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1398 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1402 *) Initial support for pluggable public key ASN1.
1403 De-spaghettify the public key ASN1 handling. Move public and private
1404 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1405 algorithm specific handling to a single module within the relevant
1406 algorithm directory. Add functions to allow (near) opaque processing
1407 of public and private key structures.
1410 *) Implement the Supported Point Formats Extension for
1411 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1414 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1415 for the psk identity [hint] and the psk callback functions to the
1416 SSL_SESSION, SSL and SSL_CTX structure.
1419 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1423 SSL_CTX_use_psk_identity_hint
1424 SSL_get_psk_identity_hint
1425 SSL_get_psk_identity
1426 SSL_use_psk_identity_hint
1428 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1430 *) Add RFC 3161 compliant time stamp request creation, response generation
1431 and response verification functionality.
1432 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1434 *) Add initial support for TLS extensions, specifically for the server_name
1435 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1436 have new members for a host name. The SSL data structure has an
1437 additional member SSL_CTX *initial_ctx so that new sessions can be
1438 stored in that context to allow for session resumption, even after the
1439 SSL has been switched to a new SSL_CTX in reaction to a client's
1440 server_name extension.
1442 New functions (subject to change):
1444 SSL_get_servername()
1445 SSL_get_servername_type()
1448 New CTRL codes and macros (subject to change):
1450 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1451 - SSL_CTX_set_tlsext_servername_callback()
1452 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1453 - SSL_CTX_set_tlsext_servername_arg()
1454 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1456 openssl s_client has a new '-servername ...' option.
1458 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1459 '-key2 ...', '-servername_fatal' (subject to change). This allows
1460 testing the HostName extension for a specific single host name ('-cert'
1461 and '-key' remain fallbacks for handshakes without HostName
1462 negotiation). If the unrecogninzed_name alert has to be sent, this by
1463 default is a warning; it becomes fatal with the '-servername_fatal'
1466 [Peter Sylvester, Remy Allais, Christophe Renou]
1468 *) Whirlpool hash implementation is added.
1471 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1472 bn(64,32). Because of instruction set limitations it doesn't have
1473 any negative impact on performance. This was done mostly in order
1474 to make it possible to share assembler modules, such as bn_mul_mont
1475 implementations, between 32- and 64-bit builds without hassle.
1478 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1479 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1483 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1484 dedicated Montgomery multiplication procedure, is introduced.
1485 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1486 "64-bit" performance on certain 32-bit targets.
1489 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1490 in SSL structures. New SSL ctrl to set maximum send fragment size.
1491 Save memory by seeting the I/O buffer sizes dynamically instead of
1492 using the maximum available value.
1495 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1496 in addition to the text details.
1499 *) Very, very preliminary EXPERIMENTAL support for printing of general
1500 ASN1 structures. This currently produces rather ugly output and doesn't
1501 handle several customised structures at all.
1504 *) Integrated support for PVK file format and some related formats such
1505 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1506 these in the 'rsa' and 'dsa' utilities.
1509 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1512 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1513 place for the (very old) "NETSCAPE" format certificates which are now
1514 handled using new ASN1 code equivalents.
1517 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1518 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1519 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1522 *) Modify CRL distribution points extension code to print out previously
1523 unsupported fields. Enhance extension setting code to allow setting of
1527 *) Add print and set support for Issuing Distribution Point CRL extension.
1530 *) Change 'Configure' script to enable Camellia by default.
1533 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1535 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1536 Thanks to Antonio Martin, Enterprise Secure Access Research and
1537 Development, Cisco Systems, Inc. for discovering this bug and
1538 preparing a fix. (CVE-2012-0050)
1541 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1543 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1544 of the Vaudenay padding oracle attack on CBC mode encryption
1545 which enables an efficient plaintext recovery attack against
1546 the OpenSSL implementation of DTLS. Their attack exploits timing
1547 differences arising during decryption processing. A research
1548 paper describing this attack can be found at:
1549 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1550 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1551 Security Group at Royal Holloway, University of London
1552 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1553 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1554 for preparing the fix. (CVE-2011-4108)
1555 [Robin Seggelmann, Michael Tuexen]
1557 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1558 [Ben Laurie, Kasper <ekasper@google.com>]
1560 *) Clear bytes used for block padding of SSL 3.0 records.
1562 [Adam Langley (Google)]
1564 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1565 Kadianakis <desnacked@gmail.com> for discovering this issue and
1566 Adam Langley for preparing the fix. (CVE-2011-4619)
1567 [Adam Langley (Google)]
1569 *) Prevent malformed RFC3779 data triggering an assertion failure.
1570 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1571 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1572 [Rob Austein <sra@hactrn.net>]
1574 *) Fix ssl_ciph.c set-up race.
1575 [Adam Langley (Google)]
1577 *) Fix spurious failures in ecdsatest.c.
1578 [Emilia Käsper (Google)]
1580 *) Fix the BIO_f_buffer() implementation (which was mixing different
1581 interpretations of the '..._len' fields).
1582 [Adam Langley (Google)]
1584 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1585 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1586 threads won't reuse the same blinding coefficients.
1588 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1589 lock to call BN_BLINDING_invert_ex, and avoids one use of
1590 BN_BLINDING_update for each BN_BLINDING structure (previously,
1591 the last update always remained unused).
1592 [Emilia Käsper (Google)]
1594 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1595 for multi-threaded use of ECDH.
1596 [Adam Langley (Google)]
1598 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1601 *) Add protection against ECDSA timing attacks as mentioned in the paper
1602 by Billy Bob Brumley and Nicola Tuveri, see:
1604 http://eprint.iacr.org/2011/232.pdf
1606 [Billy Bob Brumley and Nicola Tuveri]
1608 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1610 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1611 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1613 *) Fix bug in string printing code: if *any* escaping is enabled we must
1614 escape the escape character (backslash) or the resulting string is
1618 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1620 *) Disable code workaround for ancient and obsolete Netscape browsers
1621 and servers: an attacker can use it in a ciphersuite downgrade attack.
1622 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1625 *) Fixed J-PAKE implementation error, originally discovered by
1626 Sebastien Martini, further info and confirmation from Stefan
1627 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1630 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1632 *) Fix extension code to avoid race conditions which can result in a buffer
1633 overrun vulnerability: resumed sessions must not be modified as they can
1634 be shared by multiple threads. CVE-2010-3864
1637 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1640 *) Don't reencode certificate when calculating signature: cache and use
1641 the original encoding instead. This makes signature verification of
1642 some broken encodings work correctly.
1645 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1646 is also one of the inputs.
1647 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1649 *) Don't repeatedly append PBE algorithms to table if they already exist.
1650 Sort table on each new add. This effectively makes the table read only
1651 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1655 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1657 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1660 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1661 access or freeing data twice (CVE-2010-0742)
1662 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1664 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1665 common in certificates and some applications which only call
1666 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1670 Reduce copying into .apps and .test in makevms.com
1671 Don't try to use blank CA certificate in CA.com
1672 Allow use of C files from original directories in maketests.com
1673 [Steven M. Schweda" <sms@antinode.info>]
1675 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1677 *) When rejecting SSL/TLS records due to an incorrect version number, never
1678 update s->server with a new major version number. As of
1679 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1680 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1681 the previous behavior could result in a read attempt at NULL when
1682 receiving specific incorrect SSL/TLS records once record payload
1683 protection is active. (CVE-2010-0740)
1684 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1686 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1687 could be crashed if the relevant tables were not present (e.g. chrooted).
1688 [Tomas Hoger <thoger@redhat.com>]
1690 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1692 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1693 [Martin Olsson, Neel Mehta]
1695 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1696 accommodate for stack sorting, always a write lock!).
1699 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1700 excessive delays in the RAND_poll(): over a minute. As a workaround
1701 include a time check in the inner Heap32Next loop too.
1704 *) The code that handled flushing of data in SSL/TLS originally used the
1705 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1706 the problem outlined in PR#1949. The fix suggested there however can
1707 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1708 of Apache). So instead simplify the code to flush unconditionally.
1709 This should be fine since flushing with no data to flush is a no op.
1712 *) Handle TLS versions 2.0 and later properly and correctly use the
1713 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1714 off ancient servers have a habit of sticking around for a while...
1717 *) Modify compression code so it frees up structures without using the
1718 ex_data callbacks. This works around a problem where some applications
1719 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1720 restarting) then use compression (e.g. SSL with compression) later.
1721 This results in significant per-connection memory leaks and
1722 has caused some security issues including CVE-2008-1678 and
1726 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1727 change when encrypting or decrypting.
1730 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1731 connect and renegotiate with servers which do not support RI.
1732 Until RI is more widely deployed this option is enabled by default.
1735 *) Add "missing" ssl ctrls to clear options and mode.
1738 *) If client attempts to renegotiate and doesn't support RI respond with
1739 a no_renegotiation alert as required by RFC5746. Some renegotiating
1740 TLS clients will continue a connection gracefully when they receive
1741 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1742 waiting for a server hello which it will never receive. Now we treat a
1743 received no_renegotiation alert as a fatal error. This is because
1744 applications requesting a renegotiation might well expect it to succeed
1745 and would have no code in place to handle the server denying it so the
1746 only safe thing to do is to terminate the connection.
1749 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1750 peer supports secure renegotiation and 0 otherwise. Print out peer
1751 renegotiation support in s_client/s_server.
1754 *) Replace the highly broken and deprecated SPKAC certification method with
1755 the updated NID creation version. This should correctly handle UTF8.
1758 *) Implement RFC5746. Re-enable renegotiation but require the extension
1759 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1760 turns out to be a bad idea. It has been replaced by
1761 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1762 SSL_CTX_set_options(). This is really not recommended unless you
1763 know what you are doing.
1764 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1766 *) Fixes to stateless session resumption handling. Use initial_ctx when
1767 issuing and attempting to decrypt tickets in case it has changed during
1768 servername handling. Use a non-zero length session ID when attempting
1769 stateless session resumption: this makes it possible to determine if
1770 a resumption has occurred immediately after receiving server hello
1771 (several places in OpenSSL subtly assume this) instead of later in
1775 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1776 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1777 fixes for a few places where the return code is not checked
1779 [Julia Lawall <julia@diku.dk>]
1781 *) Add --strict-warnings option to Configure script to include devteam
1782 warnings in other configurations.
1785 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1786 makes it possible to install openssl libraries in locations which
1787 have names other than "lib", for example "/usr/lib64" which some
1789 [Steve Henson, based on patch from Jeremy Utley]
1791 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1792 X690 8.9.12 and can produce some misleading textual output of OIDs.
1793 [Steve Henson, reported by Dan Kaminsky]
1795 *) Delete MD2 from algorithm tables. This follows the recommendation in
1796 several standards that it is not used in new applications due to
1797 several cryptographic weaknesses. For binary compatibility reasons
1798 the MD2 API is still compiled in by default.
1801 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1805 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1806 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1808 [Guenter <lists@gknw.net>]
1810 *) Fix the server certificate chain building code to use X509_verify_cert(),
1811 it used to have an ad-hoc builder which was unable to cope with anything
1812 other than a simple chain.
1813 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1815 *) Don't check self signed certificate signatures in X509_verify_cert()
1816 by default (a flag can override this): it just wastes time without
1817 adding any security. As a useful side effect self signed root CAs
1818 with non-FIPS digests are now usable in FIPS mode.
1821 *) In dtls1_process_out_of_seq_message() the check if the current message
1822 is already buffered was missing. For every new message was memory
1823 allocated, allowing an attacker to perform an denial of service attack
1824 with sending out of seq handshake messages until there is no memory
1825 left. Additionally every future messege was buffered, even if the
1826 sequence number made no sense and would be part of another handshake.
1827 So only messages with sequence numbers less than 10 in advance will be
1828 buffered. (CVE-2009-1378)
1829 [Robin Seggelmann, discovered by Daniel Mentz]
1831 *) Records are buffered if they arrive with a future epoch to be
1832 processed after finishing the corresponding handshake. There is
1833 currently no limitation to this buffer allowing an attacker to perform
1834 a DOS attack with sending records with future epochs until there is no
1835 memory left. This patch adds the pqueue_size() function to detemine
1836 the size of a buffer and limits the record buffer to 100 entries.
1838 [Robin Seggelmann, discovered by Daniel Mentz]
1840 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1841 parent structure is freed. (CVE-2009-1379)
1844 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1845 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1848 [Ilya O. <vrghost@gmail.com>]
1850 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1852 *) Disable renegotiation completely - this fixes a severe security
1853 problem (CVE-2009-3555) at the cost of breaking all
1854 renegotiation. Renegotiation can be re-enabled by setting
1855 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1856 run-time. This is really not recommended unless you know what
1860 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1862 *) Don't set val to NULL when freeing up structures, it is freed up by
1863 underlying code. If sizeof(void *) > sizeof(long) this can result in
1864 zeroing past the valid field. (CVE-2009-0789)
1865 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1867 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1868 checked correctly. This would allow some invalid signed attributes to
1869 appear to verify correctly. (CVE-2009-0591)
1870 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1872 *) Reject UniversalString and BMPString types with invalid lengths. This
1873 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1874 a legal length. (CVE-2009-0590)
1877 *) Set S/MIME signing as the default purpose rather than setting it
1878 unconditionally. This allows applications to override it at the store
1882 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1883 to handle some structures.
1886 *) Improve efficiency of mem_gets: don't search whole buffer each time
1888 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1890 *) New -hex option for openssl rand.
1893 *) Print out UTF8String and NumericString when parsing ASN1.
1896 *) Support NumericString type for name components.
1899 *) Allow CC in the environment to override the automatically chosen
1900 compiler. Note that nothing is done to ensure flags work with the
1904 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1906 *) Properly check EVP_VerifyFinal() and similar return values
1908 [Ben Laurie, Bodo Moeller, Google Security Team]
1910 *) Enable TLS extensions by default.
1913 *) Allow the CHIL engine to be loaded, whether the application is
1914 multithreaded or not. (This does not release the developer from the
1915 obligation to set up the dynamic locking callbacks.)
1916 [Sander Temme <sander@temme.net>]
1918 *) Use correct exit code if there is an error in dgst command.
1919 [Steve Henson; problem pointed out by Roland Dirlewanger]
1921 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1922 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1925 *) Add experimental JPAKE support, including demo authentication in
1926 s_client and s_server.
1929 *) Set the comparison function in v3_addr_canonize().
1930 [Rob Austein <sra@hactrn.net>]
1932 *) Add support for XMPP STARTTLS in s_client.
1933 [Philip Paeps <philip@freebsd.org>]
1935 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1936 to ensure that even with this option, only ciphersuites in the
1937 server's preference list will be accepted. (Note that the option
1938 applies only when resuming a session, so the earlier behavior was
1939 just about the algorithm choice for symmetric cryptography.)
1942 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1944 *) Fix NULL pointer dereference if a DTLS server received
1945 ChangeCipherSpec as first record (CVE-2009-1386).
1948 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1949 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1952 *) The fix in 0.9.8c that supposedly got rid of unsafe
1953 double-checked locking was incomplete for RSA blinding,
1954 addressing just one layer of what turns out to have been
1955 doubly unsafe triple-checked locking.
1957 So now fix this for real by retiring the MONT_HELPER macro
1958 in crypto/rsa/rsa_eay.c.
1960 [Bodo Moeller; problem pointed out by Marius Schilder]
1962 *) Various precautionary measures:
1964 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1966 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1967 (NB: This would require knowledge of the secret session ticket key
1968 to exploit, in which case you'd be SOL either way.)
1970 - Change bn_nist.c so that it will properly handle input BIGNUMs
1971 outside the expected range.
1973 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1976 [Neel Mehta, Bodo Moeller]
1978 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1979 the load fails. Useful for distros.
1980 [Ben Laurie and the FreeBSD team]
1982 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1985 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1988 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1990 This work was sponsored by Logica.
1993 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1994 keystores. Support for SSL/TLS client authentication too.
1995 Not compiled unless enable-capieng specified to Configure.
1997 This work was sponsored by Logica.
2000 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2001 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2002 attribute creation routines such as certifcate requests and PKCS#12
2006 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2008 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2009 handshake which could lead to a cilent crash as found using the
2010 Codenomicon TLS test suite (CVE-2008-1672)
2011 [Steve Henson, Mark Cox]
2013 *) Fix double free in TLS server name extensions which could lead to
2014 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2017 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2019 Clear the error queue to ensure that error entries left from
2020 older function calls do not interfere with the correct operation.
2021 [Lutz Jaenicke, Erik de Castro Lopo]
2023 *) Remove root CA certificates of commercial CAs:
2025 The OpenSSL project does not recommend any specific CA and does not
2026 have any policy with respect to including or excluding any CA.
2027 Therefore it does not make any sense to ship an arbitrary selection
2028 of root CA certificates with the OpenSSL software.
2031 *) RSA OAEP patches to fix two separate invalid memory reads.
2032 The first one involves inputs when 'lzero' is greater than
2033 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2034 before the beginning of from). The second one involves inputs where
2035 the 'db' section contains nothing but zeroes (there is a one-byte
2036 invalid read after the end of 'db').
2037 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2039 *) Partial backport from 0.9.9-dev:
2041 Introduce bn_mul_mont (dedicated Montgomery multiplication
2042 procedure) as a candidate for BIGNUM assembler implementation.
2043 While 0.9.9-dev uses assembler for various architectures, only
2044 x86_64 is available by default here in the 0.9.8 branch, and
2045 32-bit x86 is available through a compile-time setting.
2047 To try the 32-bit x86 assembler implementation, use Configure
2048 option "enable-montasm" (which exists only for this backport).
2050 As "enable-montasm" for 32-bit x86 disclaims code stability
2051 anyway, in this constellation we activate additional code
2052 backported from 0.9.9-dev for further performance improvements,
2053 namely BN_from_montgomery_word. (To enable this otherwise,
2054 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2056 [Andy Polyakov (backport partially by Bodo Moeller)]
2058 *) Add TLS session ticket callback. This allows an application to set
2059 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2060 values. This is useful for key rollover for example where several key
2061 sets may exist with different names.
2064 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2065 This was broken until now in 0.9.8 releases, such that the only way
2066 a registered ENGINE could be used (assuming it initialises
2067 successfully on the host) was to explicitly set it as the default
2068 for the relevant algorithms. This is in contradiction with 0.9.7
2069 behaviour and the documentation. With this fix, when an ENGINE is
2070 registered into a given algorithm's table of implementations, the
2071 'uptodate' flag is reset so that auto-discovery will be used next
2072 time a new context for that algorithm attempts to select an
2074 [Ian Lister (tweaked by Geoff Thorpe)]
2076 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2077 implemention in the following ways:
2079 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2082 Lack of BER streaming support means one pass streaming processing is
2083 only supported if data is detached: setting the streaming flag is
2084 ignored for embedded content.
2086 CMS support is disabled by default and must be explicitly enabled
2087 with the enable-cms configuration option.
2090 *) Update the GMP engine glue to do direct copies between BIGNUM and
2091 mpz_t when openssl and GMP use the same limb size. Otherwise the
2092 existing "conversion via a text string export" trick is still used.
2093 [Paul Sheer <paulsheer@gmail.com>]
2095 *) Zlib compression BIO. This is a filter BIO which compressed and
2096 uncompresses any data passed through it.
2099 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2100 RFC3394 compatible AES key wrapping.
2103 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2104 sets string data without copying. X509_ALGOR_set0() and
2105 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2106 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2107 from an X509_ATTRIBUTE structure optionally checking it occurs only
2108 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2112 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2113 to get the expected BN_FLG_CONSTTIME behavior.
2114 [Bodo Moeller (Google)]
2118 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2119 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2120 - added some more tests to do_tests.pl
2121 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2122 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2123 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2124 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2125 - various changes to netware.pl to enable gcc-cross builds on Win32
2127 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2128 - various changes to fix missing prototype warnings
2129 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2130 - added AES, WHIRLPOOL and CPUID assembler code to build files
2131 - added missing AES assembler make rules to mk1mf.pl
2132 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2133 [Guenter Knauf <eflash@gmx.net>]
2135 *) Implement certificate status request TLS extension defined in RFC3546.
2136 A client can set the appropriate parameters and receive the encoded
2137 OCSP response via a callback. A server can query the supplied parameters
2138 and set the encoded OCSP response in the callback. Add simplified examples
2139 to s_client and s_server.
2142 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2144 *) Fix various bugs:
2145 + Binary incompatibility of ssl_ctx_st structure
2146 + DTLS interoperation with non-compliant servers
2147 + Don't call get_session_cb() without proposed session
2148 + Fix ia64 assembler code
2149 [Andy Polyakov, Steve Henson]
2151 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2153 *) DTLS Handshake overhaul. There were longstanding issues with
2154 OpenSSL DTLS implementation, which were making it impossible for
2155 RFC 4347 compliant client to communicate with OpenSSL server.
2156 Unfortunately just fixing these incompatibilities would "cut off"
2157 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2158 server keeps tolerating non RFC compliant syntax. The opposite is
2159 not true, 0.9.8f client can not communicate with earlier server.
2160 This update even addresses CVE-2007-4995.
2163 *) Changes to avoid need for function casts in OpenSSL: some compilers
2164 (gcc 4.2 and later) reject their use.
2165 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2168 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2169 RFC4507bis. The encrypted ticket format is an encrypted encoded
2170 SSL_SESSION structure, that way new session features are automatically
2173 If a client application caches session in an SSL_SESSION structure
2174 support is transparent because tickets are now stored in the encoded
2177 The SSL_CTX structure automatically generates keys for ticket
2178 protection in servers so again support should be possible
2179 with no application modification.
2181 If a client or server wishes to disable RFC4507 support then the option
2182 SSL_OP_NO_TICKET can be set.
2184 Add a TLS extension debugging callback to allow the contents of any client
2185 or server extensions to be examined.
2187 This work was sponsored by Google.
2190 *) Add initial support for TLS extensions, specifically for the server_name
2191 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2192 have new members for a host name. The SSL data structure has an
2193 additional member SSL_CTX *initial_ctx so that new sessions can be
2194 stored in that context to allow for session resumption, even after the
2195 SSL has been switched to a new SSL_CTX in reaction to a client's
2196 server_name extension.
2198 New functions (subject to change):
2200 SSL_get_servername()
2201 SSL_get_servername_type()
2204 New CTRL codes and macros (subject to change):
2206 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2207 - SSL_CTX_set_tlsext_servername_callback()
2208 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2209 - SSL_CTX_set_tlsext_servername_arg()
2210 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2212 openssl s_client has a new '-servername ...' option.
2214 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2215 '-key2 ...', '-servername_fatal' (subject to change). This allows
2216 testing the HostName extension for a specific single host name ('-cert'
2217 and '-key' remain fallbacks for handshakes without HostName
2218 negotiation). If the unrecogninzed_name alert has to be sent, this by
2219 default is a warning; it becomes fatal with the '-servername_fatal'
2222 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2224 *) Add AES and SSE2 assembly language support to VC++ build.
2227 *) Mitigate attack on final subtraction in Montgomery reduction.
2230 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2231 (which previously caused an internal error).
2234 *) Squeeze another 10% out of IGE mode when in != out.
2237 *) AES IGE mode speedup.
2238 [Dean Gaudet (Google)]
2240 *) Add the Korean symmetric 128-bit cipher SEED (see
2241 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2242 add SEED ciphersuites from RFC 4162:
2244 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2245 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2246 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2247 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2249 To minimize changes between patchlevels in the OpenSSL 0.9.8
2250 series, SEED remains excluded from compilation unless OpenSSL
2251 is configured with 'enable-seed'.
2252 [KISA, Bodo Moeller]
2254 *) Mitigate branch prediction attacks, which can be practical if a
2255 single processor is shared, allowing a spy process to extract
2256 information. For detailed background information, see
2257 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2258 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2259 and Necessary Software Countermeasures"). The core of the change
2260 are new versions BN_div_no_branch() and
2261 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2262 respectively, which are slower, but avoid the security-relevant
2263 conditional branches. These are automatically called by BN_div()
2264 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2265 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2266 remove a conditional branch.
2268 BN_FLG_CONSTTIME is the new name for the previous
2269 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2270 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2271 in the exponent causes BN_mod_exp_mont() to use the alternative
2272 implementation in BN_mod_exp_mont_consttime().) The old name
2273 remains as a deprecated alias.
2275 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2276 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2277 constant-time implementations for more than just exponentiation.
2278 Here too the old name is kept as a deprecated alias.
2280 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2281 the BN_BLINDING structure gets an independent copy of the
2282 modulus. This means that the previous "BIGNUM *m" argument to
2283 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2284 essentially becomes "const BIGNUM *m", although we can't actually
2285 change this in the header file before 0.9.9. It allows
2286 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2287 enable BN_FLG_CONSTTIME.
2289 [Matthew D Wood (Intel Corp)]
2291 *) In the SSL/TLS server implementation, be strict about session ID
2292 context matching (which matters if an application uses a single
2293 external cache for different purposes). Previously,
2294 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2295 set. This did ensure strict client verification, but meant that,
2296 with applications using a single external cache for quite
2297 different requirements, clients could circumvent ciphersuite
2298 restrictions for a given session ID context by starting a session
2299 in a different context.
2302 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2303 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2304 authentication-only ciphersuites.
2307 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2308 not complete and could lead to a possible single byte overflow
2309 (CVE-2007-5135) [Ben Laurie]
2311 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2313 *) Since AES128 and AES256 (and similarly Camellia128 and
2314 Camellia256) share a single mask bit in the logic of
2315 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2316 kludge to work properly if AES128 is available and AES256 isn't
2317 (or if Camellia128 is available and Camellia256 isn't).
2320 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2321 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2322 When a point or a seed is encoded in a BIT STRING, we need to
2323 prevent the removal of trailing zero bits to get the proper DER
2324 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2325 of a NamedBitList, for which trailing 0 bits need to be removed.)
2328 *) Have SSL/TLS server implementation tolerate "mismatched" record
2329 protocol version while receiving ClientHello even if the
2330 ClientHello is fragmented. (The server can't insist on the
2331 particular protocol version it has chosen before the ServerHello
2332 message has informed the client about his choice.)
2335 *) Add RFC 3779 support.
2336 [Rob Austein for ARIN, Ben Laurie]
2338 *) Load error codes if they are not already present instead of using a
2339 static variable. This allows them to be cleanly unloaded and reloaded.
2340 Improve header file function name parsing.
2343 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2344 or CAPABILITY handshake as required by RFCs.
2347 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2349 *) Introduce limits to prevent malicious keys being able to
2350 cause a denial of service. (CVE-2006-2940)
2351 [Steve Henson, Bodo Moeller]
2353 *) Fix ASN.1 parsing of certain invalid structures that can result
2354 in a denial of service. (CVE-2006-2937) [Steve Henson]
2356 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2357 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2359 *) Fix SSL client code which could crash if connecting to a
2360 malicious SSLv2 server. (CVE-2006-4343)
2361 [Tavis Ormandy and Will Drewry, Google Security Team]
2363 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2364 match only those. Before that, "AES256-SHA" would be interpreted
2365 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2366 the same strength classification in 0.9.7h) as we currently only
2367 have a single AES bit in the ciphersuite description bitmap.
2368 That change, however, also applied to ciphersuite strings such as
2369 "RC4-MD5" that intentionally matched multiple ciphersuites --
2370 namely, SSL 2.0 ciphersuites in addition to the more common ones
2371 from SSL 3.0/TLS 1.0.
2373 So we change the selection algorithm again: Naming an explicit
2374 ciphersuite selects this one ciphersuite, and any other similar
2375 ciphersuite (same bitmap) from *other* protocol versions.
2376 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2377 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2379 Since SSL 2.0 does not have any ciphersuites for which the
2380 128/256 bit distinction would be relevant, this works for now.
2381 The proper fix will be to use different bits for AES128 and
2382 AES256, which would have avoided the problems from the beginning;
2383 however, bits are scarce, so we can only do this in a new release
2384 (not just a patchlevel) when we can change the SSL_CIPHER
2385 definition to split the single 'unsigned long mask' bitmap into
2386 multiple values to extend the available space.
2390 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2392 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2393 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2395 *) Add AES IGE and biIGE modes.
2398 *) Change the Unix randomness entropy gathering to use poll() when
2399 possible instead of select(), since the latter has some
2400 undesirable limitations.
2401 [Darryl Miles via Richard Levitte and Bodo Moeller]
2403 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2404 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2405 cannot be implicitly activated as part of, e.g., the "AES" alias.
2406 However, please upgrade to OpenSSL 0.9.9[-dev] for
2407 non-experimental use of the ECC ciphersuites to get TLS extension
2408 support, which is required for curve and point format negotiation
2409 to avoid potential handshake problems.
2412 *) Disable rogue ciphersuites:
2414 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2415 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2416 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2418 The latter two were purportedly from
2419 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2422 Also deactivate the remaining ciphersuites from
2423 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2424 unofficial, and the ID has long expired.
2427 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2428 dual-core machines) and other potential thread-safety issues.
2431 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2432 versions), which is now available for royalty-free use
2433 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2434 Also, add Camellia TLS ciphersuites from RFC 4132.
2436 To minimize changes between patchlevels in the OpenSSL 0.9.8
2437 series, Camellia remains excluded from compilation unless OpenSSL
2438 is configured with 'enable-camellia'.
2441 *) Disable the padding bug check when compression is in use. The padding
2442 bug check assumes the first packet is of even length, this is not
2443 necessarily true if compresssion is enabled and can result in false
2444 positives causing handshake failure. The actual bug test is ancient
2445 code so it is hoped that implementations will either have fixed it by
2446 now or any which still have the bug do not support compression.
2449 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2451 *) When applying a cipher rule check to see if string match is an explicit
2452 cipher suite and only match that one cipher suite if it is.
2455 *) Link in manifests for VC++ if needed.
2456 [Austin Ziegler <halostatue@gmail.com>]
2458 *) Update support for ECC-based TLS ciphersuites according to
2459 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2460 TLS extensions, which are supported starting with the 0.9.9
2461 branch, not in the OpenSSL 0.9.8 branch).
2464 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2465 opaque EVP_CIPHER_CTX handling.
2468 *) Fixes and enhancements to zlib compression code. We now only use
2469 "zlib1.dll" and use the default __cdecl calling convention on Win32
2470 to conform with the standards mentioned here:
2471 http://www.zlib.net/DLL_FAQ.txt
2472 Static zlib linking now works on Windows and the new --with-zlib-include
2473 --with-zlib-lib options to Configure can be used to supply the location
2474 of the headers and library. Gracefully handle case where zlib library
2478 *) Several fixes and enhancements to the OID generation code. The old code
2479 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2480 handle numbers larger than ULONG_MAX, truncated printing and had a
2481 non standard OBJ_obj2txt() behaviour.
2484 *) Add support for building of engines under engine/ as shared libraries
2485 under VC++ build system.
2488 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2489 Hopefully, we will not see any false combination of paths any more.
2492 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2494 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2495 (part of SSL_OP_ALL). This option used to disable the
2496 countermeasure against man-in-the-middle protocol-version
2497 rollback in the SSL 2.0 server implementation, which is a bad
2498 idea. (CVE-2005-2969)
2500 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2501 for Information Security, National Institute of Advanced Industrial
2502 Science and Technology [AIST], Japan)]
2504 *) Add two function to clear and return the verify parameter flags.
2507 *) Keep cipherlists sorted in the source instead of sorting them at
2508 runtime, thus removing the need for a lock.
2511 *) Avoid some small subgroup attacks in Diffie-Hellman.
2512 [Nick Mathewson and Ben Laurie]
2514 *) Add functions for well-known primes.
2517 *) Extended Windows CE support.
2518 [Satoshi Nakamura and Andy Polyakov]
2520 *) Initialize SSL_METHOD structures at compile time instead of during
2521 runtime, thus removing the need for a lock.
2524 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2525 attempting to decrypt each encrypted key in turn. Add support to
2529 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2531 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2534 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2537 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2538 key into the same file any more.
2541 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2544 *) Add -utf8 command line and config file option to 'ca'.
2545 [Stefan <stf@udoma.org]
2547 *) Removed the macro des_crypt(), as it seems to conflict with some
2548 libraries. Use DES_crypt().
2551 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2552 involves renaming the source and generated shared-libs for
2553 both. The engines will accept the corrected or legacy ids
2554 ('ncipher' and '4758_cca' respectively) when binding. NB,
2555 this only applies when building 'shared'.
2556 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2558 *) Add attribute functions to EVP_PKEY structure. Modify
2559 PKCS12_create() to recognize a CSP name attribute and
2560 use it. Make -CSP option work again in pkcs12 utility.
2563 *) Add new functionality to the bn blinding code:
2564 - automatic re-creation of the BN_BLINDING parameters after
2565 a fixed number of uses (currently 32)
2566 - add new function for parameter creation
2567 - introduce flags to control the update behaviour of the
2568 BN_BLINDING parameters
2569 - hide BN_BLINDING structure
2570 Add a second BN_BLINDING slot to the RSA structure to improve
2571 performance when a single RSA object is shared among several
2575 *) Add support for DTLS.
2576 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2578 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2579 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2582 *) Remove buggy and incompletet DH cert support from
2583 ssl/ssl_rsa.c and ssl/s3_both.c
2586 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2587 the apps/openssl applications.
2590 *) Compile clean with "-Wall -Wmissing-prototypes
2591 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2592 DEBUG_SAFESTACK must also be set.
2595 *) Change ./Configure so that certain algorithms can be disabled by default.
2596 The new counterpiece to "no-xxx" is "enable-xxx".
2598 The patented RC5 and MDC2 algorithms will now be disabled unless
2599 "enable-rc5" and "enable-mdc2", respectively, are specified.
2601 (IDEA remains enabled despite being patented. This is because IDEA
2602 is frequently required for interoperability, and there is no license
2603 fee for non-commercial use. As before, "no-idea" can be used to
2604 avoid this algorithm.)
2608 *) Add processing of proxy certificates (see RFC 3820). This work was
2609 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2610 EGEE (Enabling Grids for E-science in Europe).
2613 *) RC4 performance overhaul on modern architectures/implementations, such
2614 as Intel P4, IA-64 and AMD64.
2617 *) New utility extract-section.pl. This can be used specify an alternative
2618 section number in a pod file instead of having to treat each file as
2619 a separate case in Makefile. This can be done by adding two lines to the
2622 =for comment openssl_section:XXX
2624 The blank line is mandatory.
2628 *) New arguments -certform, -keyform and -pass for s_client and s_server
2629 to allow alternative format key and certificate files and passphrase
2633 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2634 update associated structures and add various utility functions.
2636 Add new policy related verify parameters, include policy checking in
2637 standard verify code. Enhance 'smime' application with extra parameters
2638 to support policy checking and print out.
2641 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2642 Nehemiah processors. These extensions support AES encryption in hardware
2643 as well as RNG (though RNG support is currently disabled).
2644 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2646 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2649 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2650 [Andy Polyakov and a number of other people]
2652 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2653 implementation contributed by IBM.
2654 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2656 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2657 exponent rather than 'unsigned long'. There is a corresponding change to
2658 the new 'rsa_keygen' element of the RSA_METHOD structure.
2659 [Jelte Jansen, Geoff Thorpe]
2661 *) Functionality for creating the initial serial number file is now
2662 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2664 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2665 number file to 1, which is bound to cause problems. To avoid
2666 the problems while respecting compatibility between different 0.9.7
2667 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2668 CA.pl for serial number initialization. With the new release 0.9.8,
2669 we can fix the problem directly in the 'ca' utility.)
2672 *) Reduced header interdepencies by declaring more opaque objects in
2673 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2674 give fewer recursive includes, which could break lazy source code - so
2675 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2676 developers should define this symbol when building and using openssl to
2677 ensure they track the recommended behaviour, interfaces, [etc], but
2678 backwards-compatible behaviour prevails when this isn't defined.
2681 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2684 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2685 This will generate a random key of the appropriate length based on the
2686 cipher context. The EVP_CIPHER can provide its own random key generation
2687 routine to support keys of a specific form. This is used in the des and
2688 3des routines to generate a key of the correct parity. Update S/MIME
2689 code to use new functions and hence generate correct parity DES keys.
2690 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2691 valid (weak or incorrect parity).
2694 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2695 as looking them up. This is useful when the verified structure may contain
2696 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2697 present unless the new PKCS7_NO_CRL flag is asserted.
2700 *) Extend ASN1 oid configuration module. It now additionally accepts the
2703 shortName = some long name, 1.2.3.4
2706 *) Reimplemented the BN_CTX implementation. There is now no more static
2707 limitation on the number of variables it can handle nor the depth of the
2708 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2709 information can now expand as required, and rather than having a single
2710 static array of bignums, BN_CTX now uses a linked-list of such arrays
2711 allowing it to expand on demand whilst maintaining the usefulness of
2712 BN_CTX's "bundling".
2715 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2716 to allow all RSA operations to function using a single BN_CTX.
2719 *) Preliminary support for certificate policy evaluation and checking. This
2720 is initially intended to pass the tests outlined in "Conformance Testing
2721 of Relying Party Client Certificate Path Processing Logic" v1.07.
2724 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2725 remained unused and not that useful. A variety of other little bignum
2726 tweaks and fixes have also been made continuing on from the audit (see
2730 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2731 associated ASN1, EVP and SSL functions and old ASN1 macros.
2734 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2735 and this should never fail. So the return value from the use of
2736 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2737 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2740 *) BN_CTX_get() should return zero-valued bignums, providing the same
2741 initialised value as BN_new().
2742 [Geoff Thorpe, suggested by Ulf Möller]
2744 *) Support for inhibitAnyPolicy certificate extension.
2747 *) An audit of the BIGNUM code is underway, for which debugging code is
2748 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2749 is considered valid when processing BIGNUMs, and causes execution to
2750 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2751 further steps are taken to deliberately pollute unused data in BIGNUM
2752 structures to try and expose faulty code further on. For now, openssl will
2753 (in its default mode of operation) continue to tolerate the inconsistent
2754 forms that it has tolerated in the past, but authors and packagers should
2755 consider trying openssl and their own applications when compiled with
2756 these debugging symbols defined. It will help highlight potential bugs in
2757 their own code, and will improve the test coverage for OpenSSL itself. At
2758 some point, these tighter rules will become openssl's default to improve
2759 maintainability, though the assert()s and other overheads will remain only
2760 in debugging configurations. See bn.h for more details.
2761 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2763 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2764 that can only be obtained through BN_CTX_new() (which implicitly
2765 initialises it). The presence of this function only made it possible
2766 to overwrite an existing structure (and cause memory leaks).
2769 *) Because of the callback-based approach for implementing LHASH as a
2770 template type, lh_insert() adds opaque objects to hash-tables and
2771 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2772 to clean up those corresponding objects before destroying the hash table
2773 (and losing the object pointers). So some over-zealous constifications in
2774 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2775 objects as "const" and the lh_doall[_arg] callback wrappers are not
2776 prototyped to have "const" restrictions on the object pointers they are
2777 given (and so aren't required to cast them away any more).
2780 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2781 (speed) prefers to use its own implementation. The two implementations
2782 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2783 its object type properly exposed (MS_TM) instead of casting to/from "char
2784 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2785 aren't necessarily the greatest nomenclatures - but this is what was used
2786 internally to the implementation so I've used that for now.
2789 *) Ensure that deprecated functions do not get compiled when
2790 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2791 the self-tests were still using deprecated key-generation functions so
2792 these have been updated also.
2795 *) Reorganise PKCS#7 code to separate the digest location functionality
2796 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2797 New function PKCS7_set_digest() to set the digest type for PKCS#7
2798 digestedData type. Add additional code to correctly generate the
2799 digestedData type and add support for this type in PKCS7 initialization
2803 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2804 structure of type "other".
2807 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2808 sure the loop does correctly stop and breaking ("division by zero")
2809 modulus operations are not performed. The (pre-generated) prime
2810 table crypto/bn/bn_prime.h was already correct, but it could not be
2811 re-generated on some platforms because of the "division by zero"
2812 situation in the script.
2813 [Ralf S. Engelschall]
2815 *) Update support for ECC-based TLS ciphersuites according to
2816 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2817 SHA-1 now is only used for "small" curves (where the
2818 representation of a field element takes up to 24 bytes); for
2819 larger curves, the field element resulting from ECDH is directly
2820 used as premaster secret.
2821 [Douglas Stebila (Sun Microsystems Laboratories)]
2823 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2824 curve secp160r1 to the tests.
2825 [Douglas Stebila (Sun Microsystems Laboratories)]
2827 *) Add the possibility to load symbols globally with DSO.
2828 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2830 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2831 control of the error stack.
2834 *) Add support for STORE in ENGINE.
2837 *) Add the STORE type. The intention is to provide a common interface
2838 to certificate and key stores, be they simple file-based stores, or
2839 HSM-type store, or LDAP stores, or...
2840 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2843 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2844 pass a list of arguments to any function as well as provide a way
2845 for a function to pass data back to the caller.
2848 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2849 works like BUF_strdup() but can be used to duplicate a portion of
2850 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2854 *) Add the function sk_find_ex() which works like sk_find(), but will
2855 return an index to an element even if an exact match couldn't be
2856 found. The index is guaranteed to point at the element where the
2857 searched-for key would be inserted to preserve sorting order.
2860 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2861 takes an extra flags argument for optional functionality. Currently,
2862 the following flags are defined:
2864 OBJ_BSEARCH_VALUE_ON_NOMATCH
2865 This one gets OBJ_bsearch_ex() to return a pointer to the first
2866 element where the comparing function returns a negative or zero
2869 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2870 This one gets OBJ_bsearch_ex() to return a pointer to the first
2871 element where the comparing function returns zero. This is useful
2872 if there are more than one element where the comparing function
2876 *) Make it possible to create self-signed certificates with 'openssl ca'
2877 in such a way that the self-signed certificate becomes part of the
2878 CA database and uses the same mechanisms for serial number generation
2879 as all other certificate signing. The new flag '-selfsign' enables
2880 this functionality. Adapt CA.sh and CA.pl.in.
2883 *) Add functionality to check the public key of a certificate request
2884 against a given private. This is useful to check that a certificate
2885 request can be signed by that key (self-signing).
2888 *) Make it possible to have multiple active certificates with the same
2889 subject in the CA index file. This is done only if the keyword
2890 'unique_subject' is set to 'no' in the main CA section (default
2891 if 'CA_default') of the configuration file. The value is saved
2892 with the database itself in a separate index attribute file,
2893 named like the index file with '.attr' appended to the name.
2896 *) Generate muti valued AVAs using '+' notation in config files for
2900 *) Support for nameConstraints certificate extension.
2903 *) Support for policyConstraints certificate extension.
2906 *) Support for policyMappings certificate extension.
2909 *) Make sure the default DSA_METHOD implementation only uses its
2910 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2911 and change its own handlers to be NULL so as to remove unnecessary
2912 indirection. This lets alternative implementations fallback to the
2913 default implementation more easily.
2916 *) Support for directoryName in GeneralName related extensions
2920 *) Make it possible to link applications using Makefile.shared.
2921 Make that possible even when linking against static libraries!
2924 *) Support for single pass processing for S/MIME signing. This now
2925 means that S/MIME signing can be done from a pipe, in addition
2926 cleartext signing (multipart/signed type) is effectively streaming
2927 and the signed data does not need to be all held in memory.
2929 This is done with a new flag PKCS7_STREAM. When this flag is set
2930 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2931 is done after the data is output (and digests calculated) in
2932 SMIME_write_PKCS7().
2935 *) Add full support for -rpath/-R, both in shared libraries and
2936 applications, at least on the platforms where it's known how
2940 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2941 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2942 will now compute a table of multiples of the generator that
2943 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2944 faster (notably in the case of a single point multiplication,
2945 scalar * generator).
2946 [Nils Larsch, Bodo Moeller]
2948 *) IPv6 support for certificate extensions. The various extensions
2949 which use the IP:a.b.c.d can now take IPv6 addresses using the
2950 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2954 *) Added an ENGINE that implements RSA by performing private key
2955 exponentiations with the GMP library. The conversions to and from
2956 GMP's mpz_t format aren't optimised nor are any montgomery forms
2957 cached, and on x86 it appears OpenSSL's own performance has caught up.
2958 However there are likely to be other architectures where GMP could
2959 provide a boost. This ENGINE is not built in by default, but it can be
2960 specified at Configure time and should be accompanied by the necessary
2961 linker additions, eg;
2962 ./config -DOPENSSL_USE_GMP -lgmp
2965 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2966 testing availability of engines with "-t" - the old behaviour is
2967 produced by increasing the feature's verbosity with "-tt".
2970 *) ECDSA routines: under certain error conditions uninitialized BN objects
2971 could be freed. Solution: make sure initialization is performed early
2972 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2976 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2977 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2978 software implementations. For DSA and DH, parameter generation can
2979 also be overriden by providing the appropriate method callbacks.
2982 *) Change the "progress" mechanism used in key-generation and
2983 primality testing to functions that take a new BN_GENCB pointer in
2984 place of callback/argument pairs. The new API functions have "_ex"
2985 postfixes and the older functions are reimplemented as wrappers for
2986 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2987 declarations of the old functions to help (graceful) attempts to
2988 migrate to the new functions. Also, the new key-generation API
2989 functions operate on a caller-supplied key-structure and return
2990 success/failure rather than returning a key or NULL - this is to
2991 help make "keygen" another member function of RSA_METHOD etc.
2993 Example for using the new callback interface:
2995 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2999 BN_GENCB_set(&my_cb, my_callback, my_arg);
3001 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3002 /* For the meaning of a, b in calls to my_callback(), see the
3003 * documentation of the function that calls the callback.
3004 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3005 * my_callback should return 1 if it wants BN_is_prime_ex()
3006 * to continue, or 0 to stop.
3011 *) Change the ZLIB compression method to be stateful, and make it
3012 available to TLS with the number defined in
3013 draft-ietf-tls-compression-04.txt.
3016 *) Add the ASN.1 structures and functions for CertificatePair, which
3017 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3019 CertificatePair ::= SEQUENCE {
3020 forward [0] Certificate OPTIONAL,
3021 reverse [1] Certificate OPTIONAL,
3022 -- at least one of the pair shall be present -- }
3024 Also implement the PEM functions to read and write certificate
3025 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3027 This needed to be defined, mostly for the sake of the LDAP
3028 attribute crossCertificatePair, but may prove useful elsewhere as
3032 *) Make it possible to inhibit symlinking of shared libraries in
3033 Makefile.shared, for Cygwin's sake.
3036 *) Extend the BIGNUM API by creating a function
3037 void BN_set_negative(BIGNUM *a, int neg);
3038 and a macro that behave like
3039 int BN_is_negative(const BIGNUM *a);
3041 to avoid the need to access 'a->neg' directly in applications.
3044 *) Implement fast modular reduction for pseudo-Mersenne primes
3045 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3046 EC_GROUP_new_curve_GFp() will now automatically use this
3048 [Nils Larsch <nla@trustcenter.de>]
3050 *) Add new lock type (CRYPTO_LOCK_BN).
3053 *) Change the ENGINE framework to automatically load engines
3054 dynamically from specific directories unless they could be
3055 found to already be built in or loaded. Move all the
3056 current engines except for the cryptodev one to a new
3058 The engines in engines/ are built as shared libraries if
3059 the "shared" options was given to ./Configure or ./config.
3060 Otherwise, they are inserted in libcrypto.a.
3061 /usr/local/ssl/engines is the default directory for dynamic
3062 engines, but that can be overriden at configure time through
3063 the usual use of --prefix and/or --openssldir, and at run
3064 time with the environment variable OPENSSL_ENGINES.
3065 [Geoff Thorpe and Richard Levitte]
3067 *) Add Makefile.shared, a helper makefile to build shared
3068 libraries. Addapt Makefile.org.
3071 *) Add version info to Win32 DLLs.
3072 [Peter 'Luna' Runestig" <peter@runestig.com>]
3074 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3075 can be added using this API to created arbitrary PKCS#12
3076 files while avoiding the low level API.
3078 New options to PKCS12_create(), key or cert can be NULL and
3079 will then be omitted from the output file. The encryption
3080 algorithm NIDs can be set to -1 for no encryption, the mac
3081 iteration count can be set to 0 to omit the mac.
3083 Enhance pkcs12 utility by making the -nokeys and -nocerts
3084 options work when creating a PKCS#12 file. New option -nomac
3085 to omit the mac, NONE can be set for an encryption algorithm.
3086 New code is modified to use the enhanced PKCS12_create()
3087 instead of the low level API.
3090 *) Extend ASN1 encoder to support indefinite length constructed
3091 encoding. This can output sequences tags and octet strings in
3092 this form. Modify pk7_asn1.c to support indefinite length
3093 encoding. This is experimental and needs additional code to
3094 be useful, such as an ASN1 bio and some enhanced streaming
3097 Extend template encode functionality so that tagging is passed
3098 down to the template encoder.
3101 *) Let 'openssl req' fail if an argument to '-newkey' is not
3102 recognized instead of using RSA as a default.
3105 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3106 As these are not official, they are not included in "ALL";
3107 the "ECCdraft" ciphersuite group alias can be used to select them.
3108 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3110 *) Add ECDH engine support.
3111 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3113 *) Add ECDH in new directory crypto/ecdh/.
3114 [Douglas Stebila (Sun Microsystems Laboratories)]
3116 *) Let BN_rand_range() abort with an error after 100 iterations
3117 without success (which indicates a broken PRNG).
3120 *) Change BN_mod_sqrt() so that it verifies that the input value
3121 is really the square of the return value. (Previously,
3122 BN_mod_sqrt would show GIGO behaviour.)
3125 *) Add named elliptic curves over binary fields from X9.62, SECG,
3126 and WAP/WTLS; add OIDs that were still missing.
3128 [Sheueling Chang Shantz and Douglas Stebila
3129 (Sun Microsystems Laboratories)]
3131 *) Extend the EC library for elliptic curves over binary fields
3132 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3135 EC_GF2m_simple_method
3139 EC_GROUP_new_curve_GF2m
3140 EC_GROUP_set_curve_GF2m
3141 EC_GROUP_get_curve_GF2m
3142 EC_POINT_set_affine_coordinates_GF2m
3143 EC_POINT_get_affine_coordinates_GF2m
3144 EC_POINT_set_compressed_coordinates_GF2m
3146 Point compression for binary fields is disabled by default for
3147 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3150 As binary polynomials are represented as BIGNUMs, various members
3151 of the EC_GROUP and EC_POINT data structures can be shared
3152 between the implementations for prime fields and binary fields;
3153 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3154 are essentially identical to their ..._GFp counterparts.
3155 (For simplicity, the '..._GFp' prefix has been dropped from
3156 various internal method names.)
3158 An internal 'field_div' method (similar to 'field_mul' and
3159 'field_sqr') has been added; this is used only for binary fields.
3161 [Sheueling Chang Shantz and Douglas Stebila
3162 (Sun Microsystems Laboratories)]
3164 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3165 through methods ('mul', 'precompute_mult').
3167 The generic implementations (now internally called 'ec_wNAF_mul'
3168 and 'ec_wNAF_precomputed_mult') remain the default if these
3169 methods are undefined.
3171 [Sheueling Chang Shantz and Douglas Stebila
3172 (Sun Microsystems Laboratories)]
3174 *) New function EC_GROUP_get_degree, which is defined through
3175 EC_METHOD. For curves over prime fields, this returns the bit
3176 length of the modulus.
3178 [Sheueling Chang Shantz and Douglas Stebila
3179 (Sun Microsystems Laboratories)]
3181 *) New functions EC_GROUP_dup, EC_POINT_dup.
3182 (These simply call ..._new and ..._copy).
3184 [Sheueling Chang Shantz and Douglas Stebila
3185 (Sun Microsystems Laboratories)]
3187 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3188 Polynomials are represented as BIGNUMs (where the sign bit is not
3189 used) in the following functions [macros]:
3192 BN_GF2m_sub [= BN_GF2m_add]
3193 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3194 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3195 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3197 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3198 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3199 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3200 BN_GF2m_cmp [= BN_ucmp]
3202 (Note that only the 'mod' functions are actually for fields GF(2^m).
3203 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3205 For some functions, an the irreducible polynomial defining a
3206 field can be given as an 'unsigned int[]' with strictly
3207 decreasing elements giving the indices of those bits that are set;
3208 i.e., p[] represents the polynomial
3209 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3211 p[0] > p[1] > ... > p[k] = 0.
3212 This applies to the following functions:
3217 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3218 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3220 BN_GF2m_mod_sqrt_arr
3221 BN_GF2m_mod_solve_quad_arr
3225 Conversion can be performed by the following functions:
3230 bntest.c has additional tests for binary polynomial arithmetic.
3232 Two implementations for BN_GF2m_mod_div() are available.
3233 The default algorithm simply uses BN_GF2m_mod_inv() and
3234 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3235 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3236 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3238 [Sheueling Chang Shantz and Douglas Stebila
3239 (Sun Microsystems Laboratories)]
3241 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3242 functionality is disabled at compile-time.
3243 [Douglas Stebila <douglas.stebila@sun.com>]
3245 *) Change default behaviour of 'openssl asn1parse' so that more
3246 information is visible when viewing, e.g., a certificate:
3248 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3249 mode the content of non-printable OCTET STRINGs is output in a
3250 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3251 avoid the appearance of a printable string.
3252 [Nils Larsch <nla@trustcenter.de>]
3254 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3256 EC_GROUP_set_asn1_flag()
3257 EC_GROUP_get_asn1_flag()
3258 EC_GROUP_set_point_conversion_form()
3259 EC_GROUP_get_point_conversion_form()
3260 These control ASN1 encoding details:
3261 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3262 has been set to OPENSSL_EC_NAMED_CURVE.
3263 - Points are encoded in uncompressed form by default; options for
3264 asn1_for are as for point2oct, namely
3265 POINT_CONVERSION_COMPRESSED
3266 POINT_CONVERSION_UNCOMPRESSED
3267 POINT_CONVERSION_HYBRID
3269 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3272 EC_GROUP_get0_seed()
3273 EC_GROUP_get_seed_len()
3274 This is used only for ASN1 purposes (so far).
3275 [Nils Larsch <nla@trustcenter.de>]
3277 *) Add 'field_type' member to EC_METHOD, which holds the NID
3278 of the appropriate field type OID. The new function
3279 EC_METHOD_get_field_type() returns this value.
3280 [Nils Larsch <nla@trustcenter.de>]
3285 EC_POINT_point2hex()
3286 EC_POINT_hex2point()
3287 providing useful interfaces to EC_POINT_point2oct() and
3288 EC_POINT_oct2point().
3289 [Nils Larsch <nla@trustcenter.de>]
3291 *) Change internals of the EC library so that the functions
3292 EC_GROUP_set_generator()
3293 EC_GROUP_get_generator()
3294 EC_GROUP_get_order()
3295 EC_GROUP_get_cofactor()
3296 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3297 to methods, which would lead to unnecessary code duplication when
3298 adding different types of curves.
3299 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3301 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3302 arithmetic, and such that modified wNAFs are generated
3303 (which avoid length expansion in many cases).
3306 *) Add a function EC_GROUP_check_discriminant() (defined via
3307 EC_METHOD) that verifies that the curve discriminant is non-zero.
3309 Add a function EC_GROUP_check() that makes some sanity tests
3310 on a EC_GROUP, its generator and order. This includes
3311 EC_GROUP_check_discriminant().
3312 [Nils Larsch <nla@trustcenter.de>]
3314 *) Add ECDSA in new directory crypto/ecdsa/.
3316 Add applications 'openssl ecparam' and 'openssl ecdsa'
3317 (these are based on 'openssl dsaparam' and 'openssl dsa').
3319 ECDSA support is also included in various other files across the
3320 library. Most notably,
3321 - 'openssl req' now has a '-newkey ecdsa:file' option;
3322 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3323 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3324 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3325 them suitable for ECDSA where domain parameters must be
3326 extracted before the specific public key;
3327 - ECDSA engine support has been added.
3328 [Nils Larsch <nla@trustcenter.de>]
3330 *) Include some named elliptic curves, and add OIDs from X9.62,
3331 SECG, and WAP/WTLS. Each curve can be obtained from the new
3333 EC_GROUP_new_by_curve_name(),
3334 and the list of available named curves can be obtained with
3335 EC_get_builtin_curves().
3336 Also add a 'curve_name' member to EC_GROUP objects, which can be
3338 EC_GROUP_set_curve_name()
3339 EC_GROUP_get_curve_name()
3340 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3342 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3343 was actually never needed) and in BN_mul(). The removal in BN_mul()
3344 required a small change in bn_mul_part_recursive() and the addition
3345 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3346 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3347 bn_sub_words() and bn_add_words() except they take arrays with
3351 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3353 *) Cleanse PEM buffers before freeing them since they may contain
3355 [Benjamin Bennett <ben@psc.edu>]
3357 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3358 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3359 authentication-only ciphersuites.
3362 *) Since AES128 and AES256 share a single mask bit in the logic of
3363 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3364 kludge to work properly if AES128 is available and AES256 isn't.
3367 *) Expand security boundary to match 1.1.1 module.
3370 *) Remove redundant features: hash file source, editing of test vectors
3371 modify fipsld to use external fips_premain.c signature.
3374 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3375 run algorithm test programs.
3378 *) Make algorithm test programs more tolerant of whitespace.
3381 *) Have SSL/TLS server implementation tolerate "mismatched" record
3382 protocol version while receiving ClientHello even if the
3383 ClientHello is fragmented. (The server can't insist on the
3384 particular protocol version it has chosen before the ServerHello
3385 message has informed the client about his choice.)
3388 *) Load error codes if they are not already present instead of using a
3389 static variable. This allows them to be cleanly unloaded and reloaded.
3392 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3394 *) Introduce limits to prevent malicious keys being able to
3395 cause a denial of service. (CVE-2006-2940)
3396 [Steve Henson, Bodo Moeller]
3398 *) Fix ASN.1 parsing of certain invalid structures that can result
3399 in a denial of service. (CVE-2006-2937) [Steve Henson]
3401 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3402 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3404 *) Fix SSL client code which could crash if connecting to a
3405 malicious SSLv2 server. (CVE-2006-4343)
3406 [Tavis Ormandy and Will Drewry, Google Security Team]
3408 *) Change ciphersuite string processing so that an explicit
3409 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3410 will no longer include "AES128-SHA"), and any other similar
3411 ciphersuite (same bitmap) from *other* protocol versions (so that
3412 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3413 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3414 changes from 0.9.8b and 0.9.8d.
3417 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3419 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3420 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3422 *) Change the Unix randomness entropy gathering to use poll() when
3423 possible instead of select(), since the latter has some
3424 undesirable limitations.
3425 [Darryl Miles via Richard Levitte and Bodo Moeller]
3427 *) Disable rogue ciphersuites:
3429 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3430 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3431 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3433 The latter two were purportedly from
3434 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3437 Also deactive the remaining ciphersuites from
3438 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3439 unofficial, and the ID has long expired.
3442 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3443 dual-core machines) and other potential thread-safety issues.
3446 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3448 *) Adapt fipsld and the build system to link against the validated FIPS
3449 module in FIPS mode.
3452 *) Fixes for VC++ 2005 build under Windows.
3455 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3456 from a Windows bash shell such as MSYS. It is autodetected from the
3457 "config" script when run from a VC++ environment. Modify standard VC++
3458 build to use fipscanister.o from the GNU make build.
3461 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3463 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3464 The value now differs depending on if you build for FIPS or not.
3465 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3466 safely run with a non-FIPSed libcrypto, as it may crash because of
3467 the difference induced by this change.
3470 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3472 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3473 (part of SSL_OP_ALL). This option used to disable the
3474 countermeasure against man-in-the-middle protocol-version
3475 rollback in the SSL 2.0 server implementation, which is a bad
3476 idea. (CVE-2005-2969)
3478 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3479 for Information Security, National Institute of Advanced Industrial
3480 Science and Technology [AIST], Japan)]
3482 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3483 mainly for FIPS compliance and not fully integrated at this stage.
3486 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3487 the exponentiation using a fixed-length exponent. (Otherwise,
3488 the information leaked through timing could expose the secret key
3489 after many signatures; cf. Bleichenbacher's attack on DSA with
3493 *) Make a new fixed-window mod_exp implementation the default for
3494 RSA, DSA, and DH private-key operations so that the sequence of
3495 squares and multiplies and the memory access pattern are
3496 independent of the particular secret key. This will mitigate
3497 cache-timing and potential related attacks.
3499 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3500 and this is automatically used by BN_mod_exp_mont() if the new flag
3501 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3502 will use this BN flag for private exponents unless the flag
3503 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3504 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3506 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3508 *) Change the client implementation for SSLv23_method() and
3509 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3510 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3511 (Previously, the SSL 2.0 backwards compatible Client Hello
3512 message format would be used even with SSL_OP_NO_SSLv2.)
3515 *) Add support for smime-type MIME parameter in S/MIME messages which some
3519 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3520 a threadsafe manner. Modify rsa code to use new function and add calls
3521 to dsa and dh code (which had race conditions before).
3524 *) Include the fixed error library code in the C error file definitions
3525 instead of fixing them up at runtime. This keeps the error code
3526 structures constant.
3529 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3531 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3534 *) Fixes for newer kerberos headers. NB: the casts are needed because
3535 the 'length' field is signed on one version and unsigned on another
3536 with no (?) obvious way to tell the difference, without these VC++
3537 complains. Also the "definition" of FAR (blank) is no longer included
3538 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3539 some needed definitions.
3542 *) Undo Cygwin change.
3545 *) Added support for proxy certificates according to RFC 3820.
3546 Because they may be a security thread to unaware applications,
3547 they must be explicitely allowed in run-time. See
3548 docs/HOWTO/proxy_certificates.txt for further information.
3551 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3553 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3554 server and client random values. Previously
3555 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3556 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3558 This change has negligible security impact because:
3560 1. Server and client random values still have 24 bytes of pseudo random
3563 2. Server and client random values are sent in the clear in the initial
3566 3. The master secret is derived using the premaster secret (48 bytes in
3567 size for static RSA ciphersuites) as well as client server and random
3570 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3573 [Stephen Henson, reported by UK NISCC]
3575 *) Use Windows randomness collection on Cygwin.
3578 *) Fix hang in EGD/PRNGD query when communication socket is closed
3579 prematurely by EGD/PRNGD.
3580 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3582 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3585 *) Back-port of selected performance improvements from development
3586 branch, as well as improved support for PowerPC platforms.
3589 *) Add lots of checks for memory allocation failure, error codes to indicate
3590 failure and freeing up memory if a failure occurs.
3591 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3593 *) Add new -passin argument to dgst.
3596 *) Perform some character comparisons of different types in X509_NAME_cmp:
3597 this is needed for some certificates that reencode DNs into UTF8Strings
3598 (in violation of RFC3280) and can't or wont issue name rollover
3602 *) Make an explicit check during certificate validation to see that
3603 the CA setting in each certificate on the chain is correct. As a
3604 side effect always do the following basic checks on extensions,
3605 not just when there's an associated purpose to the check:
3607 - if there is an unhandled critical extension (unless the user
3608 has chosen to ignore this fault)
3609 - if the path length has been exceeded (if one is set at all)
3610 - that certain extensions fit the associated purpose (if one has
3614 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3616 *) Avoid a race condition when CRLs are checked in a multi threaded
3617 environment. This would happen due to the reordering of the revoked
3618 entries during signature checking and serial number lookup. Now the
3619 encoding is cached and the serial number sort performed under a lock.
3620 Add new STACK function sk_is_sorted().
3623 *) Add Delta CRL to the extension code.
3626 *) Various fixes to s3_pkt.c so alerts are sent properly.
3627 [David Holmes <d.holmes@f5.com>]
3629 *) Reduce the chances of duplicate issuer name and serial numbers (in
3630 violation of RFC3280) using the OpenSSL certificate creation utilities.
3631 This is done by creating a random 64 bit value for the initial serial
3632 number when a serial number file is created or when a self signed
3633 certificate is created using 'openssl req -x509'. The initial serial
3634 number file is created using 'openssl x509 -next_serial' in CA.pl
3635 rather than being initialized to 1.
3638 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3640 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3641 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3642 [Joe Orton, Steve Henson]
3644 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3646 [Joe Orton, Steve Henson]
3648 *) Make it possible to have multiple active certificates with the same
3649 subject in the CA index file. This is done only if the keyword
3650 'unique_subject' is set to 'no' in the main CA section (default
3651 if 'CA_default') of the configuration file. The value is saved
3652 with the database itself in a separate index attribute file,
3653 named like the index file with '.attr' appended to the name.
3656 *) X509 verify fixes. Disable broken certificate workarounds when
3657 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3658 keyUsage extension present. Don't accept CRLs with unhandled critical
3659 extensions: since verify currently doesn't process CRL extensions this
3660 rejects a CRL with *any* critical extensions. Add new verify error codes
3664 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3665 A clarification of RFC2560 will require the use of OCTET STRINGs and
3666 some implementations cannot handle the current raw format. Since OpenSSL
3667 copies and compares OCSP nonces as opaque blobs without any attempt at
3668 parsing them this should not create any compatibility issues.
3671 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3672 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3673 this HMAC (and other) operations are several times slower than OpenSSL
3677 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3678 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3680 *) Use the correct content when signing type "other".
3683 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3685 *) Fix various bugs revealed by running the NISCC test suite:
3687 Stop out of bounds reads in the ASN1 code when presented with
3688 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3690 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3692 If verify callback ignores invalid public key errors don't try to check
3693 certificate signature with the NULL public key.
3697 *) New -ignore_err option in ocsp application to stop the server
3698 exiting on the first error in a request.
3701 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3702 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3706 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3707 extra data after the compression methods not only for TLS 1.0
3708 but also for SSL 3.0 (as required by the specification).
3709 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3711 *) Change X509_certificate_type() to mark the key as exported/exportable
3712 when it's 512 *bits* long, not 512 bytes.
3715 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3716 blocks during encryption.
3719 *) Various fixes to base64 BIO and non blocking I/O. On write
3720 flushes were not handled properly if the BIO retried. On read
3721 data was not being buffered properly and had various logic bugs.
3722 This also affects blocking I/O when the data being decoded is a
3726 *) Various S/MIME bugfixes and compatibility changes:
3727 output correct application/pkcs7 MIME type if
3728 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3729 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3730 of files as .eml work). Correctly handle very long lines in MIME
3734 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3736 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3737 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3738 a protocol version number mismatch like a decryption error
3739 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3742 *) Turn on RSA blinding by default in the default implementation
3743 to avoid a timing attack. Applications that don't want it can call
3744 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3745 They would be ill-advised to do so in most cases.
3746 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3748 *) Change RSA blinding code so that it works when the PRNG is not
3749 seeded (in this case, the secret RSA exponent is abused as
3750 an unpredictable seed -- if it is not unpredictable, there
3751 is no point in blinding anyway). Make RSA blinding thread-safe
3752 by remembering the creator's thread ID in rsa->blinding and
3753 having all other threads use local one-time blinding factors
3754 (this requires more computation than sharing rsa->blinding, but
3755 avoids excessive locking; and if an RSA object is not shared
3756 between threads, blinding will still be very fast).
3759 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3760 ENGINE as defaults for all supported algorithms irrespective of
3761 the 'flags' parameter. 'flags' is now honoured, so applications
3762 should make sure they are passing it correctly.
3765 *) Target "mingw" now allows native Windows code to be generated in
3766 the Cygwin environment as well as with the MinGW compiler.
3769 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3771 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3772 via timing by performing a MAC computation even if incorrrect
3773 block cipher padding has been found. This is a countermeasure
3774 against active attacks where the attacker has to distinguish
3775 between bad padding and a MAC verification error. (CVE-2003-0078)
3777 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3778 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3779 Martin Vuagnoux (EPFL, Ilion)]
3781 *) Make the no-err option work as intended. The intention with no-err
3782 is not to have the whole error stack handling routines removed from
3783 libcrypto, it's only intended to remove all the function name and
3784 reason texts, thereby removing some of the footprint that may not
3785 be interesting if those errors aren't displayed anyway.
3787 NOTE: it's still possible for any application or module to have it's
3788 own set of error texts inserted. The routines are there, just not
3789 used by default when no-err is given.
3792 *) Add support for FreeBSD on IA64.
3793 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3795 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3796 Kerberos function mit_des_cbc_cksum(). Before this change,
3797 the value returned by DES_cbc_cksum() was like the one from
3798 mit_des_cbc_cksum(), except the bytes were swapped.
3799 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3801 *) Allow an application to disable the automatic SSL chain building.
3802 Before this a rather primitive chain build was always performed in
3803 ssl3_output_cert_chain(): an application had no way to send the
3804 correct chain if the automatic operation produced an incorrect result.
3806 Now the chain builder is disabled if either:
3808 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3810 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3812 The reasoning behind this is that an application would not want the
3813 auto chain building to take place if extra chain certificates are
3814 present and it might also want a means of sending no additional
3815 certificates (for example the chain has two certificates and the
3819 *) Add the possibility to build without the ENGINE framework.
3820 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3822 *) Under Win32 gmtime() can return NULL: check return value in
3823 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3826 *) DSA routines: under certain error conditions uninitialized BN objects
3827 could be freed. Solution: make sure initialization is performed early
3828 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3829 Nils Larsch <nla@trustcenter.de> via PR#459)
3832 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3833 checked on reconnect on the client side, therefore session resumption
3834 could still fail with a "ssl session id is different" error. This
3835 behaviour is masked when SSL_OP_ALL is used due to
3836 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3837 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3838 followup to PR #377.
3841 *) IA-32 assembler support enhancements: unified ELF targets, support
3842 for SCO/Caldera platforms, fix for Cygwin shared build.
3845 *) Add support for FreeBSD on sparc64. As a consequence, support for
3846 FreeBSD on non-x86 processors is separate from x86 processors on
3847 the config script, much like the NetBSD support.
3848 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3850 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3852 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3855 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3856 code (06) was taken as the first octet of the session ID and the last
3857 octet was ignored consequently. As a result SSLv2 client side session
3858 caching could not have worked due to the session ID mismatch between
3860 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3864 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3865 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3869 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3870 seems that in spite of existing for more than a year, many application
3871 author have done nothing to provide the necessary callbacks, which
3872 means that this particular engine will not work properly anywhere.
3873 This is a very unfortunate situation which forces us, in the name
3874 of usability, to give the hw_ncipher.c a static lock, which is part
3876 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3877 appear in 0.9.8 or later. We EXPECT application authors to have
3878 dealt properly with this when 0.9.8 is released (unless we actually
3879 make such changes in the libcrypto locking code that changes will
3880 have to be made anyway).
3883 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3884 octets have been read, EOF or an error occurs. Without this change
3885 some truncated ASN1 structures will not produce an error.
3888 *) Disable Heimdal support, since it hasn't been fully implemented.
3889 Still give the possibility to force the use of Heimdal, but with
3890 warnings and a request that patches get sent to openssl-dev.
3893 *) Add the VC-CE target, introduce the WINCE sysname, and add
3894 INSTALL.WCE and appropriate conditionals to make it build.
3895 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3897 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3898 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3899 edit numbers of the version.
3900 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3902 *) Introduce safe string copy and catenation functions
3903 (BUF_strlcpy() and BUF_strlcat()).
3904 [Ben Laurie (CHATS) and Richard Levitte]
3906 *) Avoid using fixed-size buffers for one-line DNs.
3907 [Ben Laurie (CHATS)]
3909 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3910 resizing buffers containing secrets, and use where appropriate.
3911 [Ben Laurie (CHATS)]
3913 *) Avoid using fixed size buffers for configuration file location.
3914 [Ben Laurie (CHATS)]
3916 *) Avoid filename truncation for various CA files.
3917 [Ben Laurie (CHATS)]
3919 *) Use sizeof in preference to magic numbers.
3920 [Ben Laurie (CHATS)]
3922 *) Avoid filename truncation in cert requests.
3923 [Ben Laurie (CHATS)]
3925 *) Add assertions to check for (supposedly impossible) buffer
3927 [Ben Laurie (CHATS)]
3929 *) Don't cache truncated DNS entries in the local cache (this could
3930 potentially lead to a spoofing attack).
3931 [Ben Laurie (CHATS)]
3933 *) Fix various buffers to be large enough for hex/decimal
3934 representations in a platform independent manner.
3935 [Ben Laurie (CHATS)]
3937 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3938 resizing buffers containing secrets, and use where appropriate.
3939 [Ben Laurie (CHATS)]
3941 *) Add BIO_indent() to avoid much slightly worrying code to do
3943 [Ben Laurie (CHATS)]
3945 *) Convert sprintf()/BIO_puts() to BIO_printf().
3946 [Ben Laurie (CHATS)]
3948 *) buffer_gets() could terminate with the buffer only half
3950 [Ben Laurie (CHATS)]
3952 *) Add assertions to prevent user-supplied crypto functions from
3953 overflowing internal buffers by having large block sizes, etc.
3954 [Ben Laurie (CHATS)]
3956 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3958 [Ben Laurie (CHATS)]
3960 *) Eliminate unused copy of key in RC4.
3961 [Ben Laurie (CHATS)]
3963 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3964 [Ben Laurie (CHATS)]
3966 *) Fix off-by-one error in EGD path.
3967 [Ben Laurie (CHATS)]
3969 *) If RANDFILE path is too long, ignore instead of truncating.
3970 [Ben Laurie (CHATS)]
3972 *) Eliminate unused and incorrectly sized X.509 structure
3974 [Ben Laurie (CHATS)]
3976 *) Eliminate unused and dangerous function knumber().
3977 [Ben Laurie (CHATS)]
3979 *) Eliminate unused and dangerous structure, KSSL_ERR.
3980 [Ben Laurie (CHATS)]
3982 *) Protect against overlong session ID context length in an encoded
3983 session object. Since these are local, this does not appear to be
3985 [Ben Laurie (CHATS)]
3987 *) Change from security patch (see 0.9.6e below) that did not affect
3988 the 0.9.6 release series:
3990 Remote buffer overflow in SSL3 protocol - an attacker could
3991 supply an oversized master key in Kerberos-enabled versions.
3993 [Ben Laurie (CHATS)]
3995 *) Change the SSL kerb5 codes to match RFC 2712.
3998 *) Make -nameopt work fully for req and add -reqopt switch.
3999 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4001 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4002 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4004 *) Make sure tests can be performed even if the corresponding algorithms
4005 have been removed entirely. This was also the last step to make
4006 OpenSSL compilable with DJGPP under all reasonable conditions.
4007 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4009 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4010 to allow version independent disabling of normally unselected ciphers,
4011 which may be activated as a side-effect of selecting a single cipher.
4013 (E.g., cipher list string "RSA" enables ciphersuites that are left
4014 out of "ALL" because they do not provide symmetric encryption.
4015 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4016 [Lutz Jaenicke, Bodo Moeller]
4018 *) Add appropriate support for separate platform-dependent build
4019 directories. The recommended way to make a platform-dependent
4020 build directory is the following (tested on Linux), maybe with
4023 # Place yourself outside of the OpenSSL source tree. In
4024 # this example, the environment variable OPENSSL_SOURCE
4025 # is assumed to contain the absolute OpenSSL source directory.
4026 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4027 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4028 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4029 mkdir -p `dirname $F`
4030 ln -s $OPENSSL_SOURCE/$F $F
4033 To be absolutely sure not to disturb the source tree, a "make clean"
4034 is a good thing. If it isn't successfull, don't worry about it,
4035 it probably means the source directory is very clean.
4038 *) Make sure any ENGINE control commands make local copies of string
4039 pointers passed to them whenever necessary. Otherwise it is possible
4040 the caller may have overwritten (or deallocated) the original string
4041 data when a later ENGINE operation tries to use the stored values.
4042 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4044 *) Improve diagnostics in file reading and command-line digests.
4045 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4047 *) Add AES modes CFB and OFB to the object database. Correct an
4048 error in AES-CFB decryption.
4051 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4052 allows existing EVP_CIPHER_CTX structures to be reused after
4053 calling EVP_*Final(). This behaviour is used by encryption
4054 BIOs and some applications. This has the side effect that
4055 applications must explicitly clean up cipher contexts with
4056 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4059 *) Check the values of dna and dnb in bn_mul_recursive before calling
4060 bn_mul_comba (a non zero value means the a or b arrays do not contain
4061 n2 elements) and fallback to bn_mul_normal if either is not zero.
4064 *) Fix escaping of non-ASCII characters when using the -subj option
4065 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4068 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4069 form for "surname", serialNumber has no short form.
4070 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4071 therefore remove "mail" short name for "internet 7".
4072 The OID for unique identifiers in X509 certificates is
4073 x500UniqueIdentifier, not uniqueIdentifier.
4074 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4077 *) Add an "init" command to the ENGINE config module and auto initialize
4078 ENGINEs. Without any "init" command the ENGINE will be initialized
4079 after all ctrl commands have been executed on it. If init=1 the
4080 ENGINE is initailized at that point (ctrls before that point are run
4081 on the uninitialized ENGINE and after on the initialized one). If
4082 init=0 then the ENGINE will not be iniatialized at all.
4085 *) Fix the 'app_verify_callback' interface so that the user-defined
4086 argument is actually passed to the callback: In the
4087 SSL_CTX_set_cert_verify_callback() prototype, the callback
4088 declaration has been changed from
4091 int (*cb)(X509_STORE_CTX *,void *);
4092 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4093 i=s->ctx->app_verify_callback(&ctx)
4094 has been changed into
4095 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4097 To update applications using SSL_CTX_set_cert_verify_callback(),
4098 a dummy argument can be added to their callback functions.
4099 [D. K. Smetters <smetters@parc.xerox.com>]
4101 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4102 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4104 *) Add and OPENSSL_LOAD_CONF define which will cause
4105 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4106 This allows older applications to transparently support certain
4107 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4108 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4109 load the config file and OPENSSL_add_all_algorithms_conf() which will
4110 always load it have also been added.
4113 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4114 Adjust NIDs and EVP layer.
4115 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4117 *) Config modules support in openssl utility.
4119 Most commands now load modules from the config file,
4120 though in a few (such as version) this isn't done
4121 because it couldn't be used for anything.
4123 In the case of ca and req the config file used is
4124 the same as the utility itself: that is the -config
4125 command line option can be used to specify an
4129 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4130 use "openssl_conf" if filename is NULL use default openssl config file.
4133 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4134 config section name. Add a new flag to tolerate a missing config file
4135 and move code to CONF_modules_load_file().
4138 *) Support for crypto accelerator cards from Accelerated Encryption
4139 Processing, www.aep.ie. (Use engine 'aep')
4140 The support was copied from 0.9.6c [engine] and adapted/corrected
4141 to work with the new engine framework.
4142 [AEP Inc. and Richard Levitte]
4144 *) Support for SureWare crypto accelerator cards from Baltimore
4145 Technologies. (Use engine 'sureware')
4146 The support was copied from 0.9.6c [engine] and adapted
4147 to work with the new engine framework.
4150 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4151 make the newer ENGINE framework commands for the CHIL engine work.
4152 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4154 *) Make it possible to produce shared libraries on ReliantUNIX.
4155 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4157 *) Add the configuration target debug-linux-ppro.
4158 Make 'openssl rsa' use the general key loading routines
4159 implemented in apps.c, and make those routines able to
4160 handle the key format FORMAT_NETSCAPE and the variant
4162 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4164 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4165 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4167 *) Add -keyform to rsautl, and document -engine.
4168 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4170 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4171 BIO_R_NO_SUCH_FILE error code rather than the generic
4172 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4175 *) Add new functions
4177 ERR_peek_last_error_line
4178 ERR_peek_last_error_line_data.
4179 These are similar to
4182 ERR_peek_error_line_data,
4183 but report on the latest error recorded rather than the first one
4184 still in the error queue.
4185 [Ben Laurie, Bodo Moeller]
4187 *) default_algorithms option in ENGINE config module. This allows things
4189 default_algorithms = ALL
4190 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4193 *) Prelminary ENGINE config module.
4196 *) New experimental application configuration code.
4199 *) Change the AES code to follow the same name structure as all other
4200 symmetric ciphers, and behave the same way. Move everything to
4201 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4202 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4204 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4205 [Ben Laurie and Theo de Raadt]
4207 *) Add option to output public keys in req command.
4208 [Massimiliano Pala madwolf@openca.org]
4210 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4211 (up to about 10% better than before for P-192 and P-224).
4214 *) New functions/macros
4216 SSL_CTX_set_msg_callback(ctx, cb)
4217 SSL_CTX_set_msg_callback_arg(ctx, arg)
4218 SSL_set_msg_callback(ssl, cb)
4219 SSL_set_msg_callback_arg(ssl, arg)
4221 to request calling a callback function
4223 void cb(int write_p, int version, int content_type,
4224 const void *buf, size_t len, SSL *ssl, void *arg)
4226 whenever a protocol message has been completely received
4227 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4228 protocol version according to which the SSL library interprets
4229 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4230 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4231 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4232 specification (change_cipher_spec(20), alert(21), handshake(22)).
4233 'buf' and 'len' point to the actual message, 'ssl' to the
4234 SSL object, and 'arg' is the application-defined value set by
4235 SSL[_CTX]_set_msg_callback_arg().
4237 'openssl s_client' and 'openssl s_server' have new '-msg' options
4238 to enable a callback that displays all protocol messages.
4241 *) Change the shared library support so shared libraries are built as
4242 soon as the corresponding static library is finished, and thereby get
4243 openssl and the test programs linked against the shared library.
4244 This still only happens when the keyword "shard" has been given to
4245 the configuration scripts.
4247 NOTE: shared library support is still an experimental thing, and
4248 backward binary compatibility is still not guaranteed.
4249 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4251 *) Add support for Subject Information Access extension.
4252 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4254 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4255 additional bytes when new memory had to be allocated, not just
4256 when reusing an existing buffer.
4259 *) New command line and configuration option 'utf8' for the req command.
4260 This allows field values to be specified as UTF8 strings.
4263 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4264 runs for the former and machine-readable output for the latter.
4267 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4268 of the e-mail address in the DN (i.e., it will go into a certificate
4269 extension only). The new configuration file option 'email_in_dn = no'
4270 has the same effect.
4271 [Massimiliano Pala madwolf@openca.org]
4273 *) Change all functions with names starting with des_ to be starting
4274 with DES_ instead. Add wrappers that are compatible with libdes,
4275 but are named _ossl_old_des_*. Finally, add macros that map the
4276 des_* symbols to the corresponding _ossl_old_des_* if libdes
4277 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4278 desired, the des_* symbols will be mapped to DES_*, with one
4281 Since we provide two compatibility mappings, the user needs to
4282 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4283 compatibility is desired. The default (i.e., when that macro
4284 isn't defined) is OpenSSL 0.9.6c compatibility.
4286 There are also macros that enable and disable the support of old
4287 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4288 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4289 are defined, the default will apply: to support the old des routines.
4291 In either case, one must include openssl/des.h to get the correct
4292 definitions. Do not try to just include openssl/des_old.h, that
4295 NOTE: This is a major break of an old API into a new one. Software
4296 authors are encouraged to switch to the DES_ style functions. Some
4297 time in the future, des_old.h and the libdes compatibility functions
4298 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4299 default), and then completely removed.
4302 *) Test for certificates which contain unsupported critical extensions.
4303 If such a certificate is found during a verify operation it is
4304 rejected by default: this behaviour can be overridden by either
4305 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4306 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4307 X509_supported_extension() has also been added which returns 1 if a
4308 particular extension is supported.
4311 *) Modify the behaviour of EVP cipher functions in similar way to digests
4312 to retain compatibility with existing code.
4315 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4316 compatibility with existing code. In particular the 'ctx' parameter does
4317 not have to be to be initialized before the call to EVP_DigestInit() and
4318 it is tidied up after a call to EVP_DigestFinal(). New function
4319 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4320 EVP_MD_CTX_copy() changed to not require the destination to be
4321 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4322 requires the destination to be valid.
4324 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4325 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4328 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4329 so that complete 'Handshake' protocol structures are kept in memory
4330 instead of overwriting 'msg_type' and 'length' with 'body' data.
4333 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4334 [Massimo Santin via Richard Levitte]
4336 *) Major restructuring to the underlying ENGINE code. This includes
4337 reduction of linker bloat, separation of pure "ENGINE" manipulation
4338 (initialisation, etc) from functionality dealing with implementations
4339 of specific crypto iterfaces. This change also introduces integrated
4340 support for symmetric ciphers and digest implementations - so ENGINEs
4341 can now accelerate these by providing EVP_CIPHER and EVP_MD
4342 implementations of their own. This is detailed in crypto/engine/README
4343 as it couldn't be adequately described here. However, there are a few
4344 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4345 were changed in the original introduction of ENGINE code have now
4346 reverted back - the hooking from this code to ENGINE is now a good
4347 deal more passive and at run-time, operations deal directly with
4348 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4349 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4350 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4351 they were not being used by the framework as there is no concept of a
4352 BIGNUM_METHOD and they could not be generalised to the new
4353 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4354 ENGINE_cpy() has been removed as it cannot be consistently defined in
4358 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4361 *) Change mkdef.pl to sort symbols that get the same entry number,
4362 and make sure the automatically generated functions ERR_load_*
4363 become part of libeay.num as well.
4366 *) New function SSL_renegotiate_pending(). This returns true once
4367 renegotiation has been requested (either SSL_renegotiate() call
4368 or HelloRequest/ClientHello receveived from the peer) and becomes
4369 false once a handshake has been completed.
4370 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4371 sends a HelloRequest, but does not ensure that a handshake takes
4372 place. SSL_renegotiate_pending() is useful for checking if the
4373 client has followed the request.)
4376 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4377 By default, clients may request session resumption even during
4378 renegotiation (if session ID contexts permit); with this option,
4379 session resumption is possible only in the first handshake.
4381 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4382 more bits available for options that should not be part of
4383 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4386 *) Add some demos for certificate and certificate request creation.
4389 *) Make maximum certificate chain size accepted from the peer application
4390 settable (SSL*_get/set_max_cert_list()), as proposed by
4391 "Douglas E. Engert" <deengert@anl.gov>.
4394 *) Add support for shared libraries for Unixware-7
4395 (Boyd Lynn Gerber <gerberb@zenez.com>).
4398 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4399 be done prior to destruction. Use this to unload error strings from
4400 ENGINEs that load their own error strings. NB: This adds two new API
4401 functions to "get" and "set" this destroy handler in an ENGINE.
4404 *) Alter all existing ENGINE implementations (except "openssl" and
4405 "openbsd") to dynamically instantiate their own error strings. This
4406 makes them more flexible to be built both as statically-linked ENGINEs
4407 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4408 Also, add stub code to each that makes building them as self-contained
4409 shared-libraries easier (see README.ENGINE).
4412 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4413 implementations into applications that are completely implemented in
4414 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4415 commands that can be used to configure what shared-library to load and
4416 to control aspects of the way it is handled. Also, made an update to
4417 the README.ENGINE file that brings its information up-to-date and
4418 provides some information and instructions on the "dynamic" ENGINE
4419 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4422 *) Make it possible to unload ranges of ERR strings with a new
4423 "ERR_unload_strings" function.
4426 *) Add a copy() function to EVP_MD.
4429 *) Make EVP_MD routines take a context pointer instead of just the
4430 md_data void pointer.
4433 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4434 that the digest can only process a single chunk of data
4435 (typically because it is provided by a piece of
4436 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4437 is only going to provide a single chunk of data, and hence the
4438 framework needn't accumulate the data for oneshot drivers.
4441 *) As with "ERR", make it possible to replace the underlying "ex_data"
4442 functions. This change also alters the storage and management of global
4443 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4444 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4445 index counters. The API functions that use this state have been changed
4446 to take a "class_index" rather than pointers to the class's local STACK
4447 and counter, and there is now an API function to dynamically create new
4448 classes. This centralisation allows us to (a) plug a lot of the
4449 thread-safety problems that existed, and (b) makes it possible to clean
4450 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4451 such data would previously have always leaked in application code and
4452 workarounds were in place to make the memory debugging turn a blind eye
4453 to it. Application code that doesn't use this new function will still
4454 leak as before, but their memory debugging output will announce it now
4455 rather than letting it slide.
4457 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4458 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4459 has a return value to indicate success or failure.
4462 *) Make it possible to replace the underlying "ERR" functions such that the
4463 global state (2 LHASH tables and 2 locks) is only used by the "default"
4464 implementation. This change also adds two functions to "get" and "set"
4465 the implementation prior to it being automatically set the first time
4466 any other ERR function takes place. Ie. an application can call "get",
4467 pass the return value to a module it has just loaded, and that module
4468 can call its own "set" function using that value. This means the
4469 module's "ERR" operations will use (and modify) the error state in the
4470 application and not in its own statically linked copy of OpenSSL code.
4473 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4474 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4475 the operation, and provides a more encapsulated way for external code
4476 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4477 to use these functions rather than manually incrementing the counts.
4479 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4482 *) Add EVP test program.
4485 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4488 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4489 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4490 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4491 These allow a CRL to be built without having to access X509_CRL fields
4492 directly. Modify 'ca' application to use new functions.
4495 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4496 bug workarounds. Rollback attack detection is a security feature.
4497 The problem will only arise on OpenSSL servers when TLSv1 is not
4498 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4499 Software authors not wanting to support TLSv1 will have special reasons
4500 for their choice and can explicitly enable this option.
4501 [Bodo Moeller, Lutz Jaenicke]
4503 *) Rationalise EVP so it can be extended: don't include a union of
4504 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4505 (similar to those existing for EVP_CIPHER_CTX).
4510 EVP_MD_CTX_init(&md); /* new function call */
4511 EVP_DigestInit(&md, EVP_sha1());
4512 EVP_DigestUpdate(&md, in, len);
4513 EVP_DigestFinal(&md, out, NULL);
4514 EVP_MD_CTX_cleanup(&md); /* new function call */
4518 *) Make DES key schedule conform to the usual scheme, as well as
4519 correcting its structure. This means that calls to DES functions
4520 now have to pass a pointer to a des_key_schedule instead of a
4521 plain des_key_schedule (which was actually always a pointer
4524 des_key_schedule ks;
4526 des_set_key_checked(..., &ks);
4527 des_ncbc_encrypt(..., &ks, ...);
4529 (Note that a later change renames 'des_...' into 'DES_...'.)
4532 *) Initial reduction of linker bloat: the use of some functions, such as
4533 PEM causes large amounts of unused functions to be linked in due to
4534 poor organisation. For example pem_all.c contains every PEM function
4535 which has a knock on effect of linking in large amounts of (unused)
4536 ASN1 code. Grouping together similar functions and splitting unrelated
4537 functions prevents this.
4540 *) Cleanup of EVP macros.
4543 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4544 correct _ecb suffix.
4547 *) Add initial OCSP responder support to ocsp application. The
4548 revocation information is handled using the text based index
4549 use by the ca application. The responder can either handle
4550 requests generated internally, supplied in files (for example
4551 via a CGI script) or using an internal minimal server.
4554 *) Add configuration choices to get zlib compression for TLS.
4557 *) Changes to Kerberos SSL for RFC 2712 compliance:
4558 1. Implemented real KerberosWrapper, instead of just using
4559 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4560 2. Implemented optional authenticator field of KerberosWrapper.
4562 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4563 and authenticator structs; see crypto/krb5/.
4565 Generalized Kerberos calls to support multiple Kerberos libraries.
4566 [Vern Staats <staatsvr@asc.hpc.mil>,
4567 Jeffrey Altman <jaltman@columbia.edu>
4568 via Richard Levitte]
4570 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4571 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4572 values for each of the key sizes rather than having just
4573 parameters (and 'speed' generating keys each time).
4576 *) Speed up EVP routines.
4579 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4580 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4581 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4582 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4584 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4585 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4586 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4589 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4591 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4594 *) Added the OS2-EMX target.
4595 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4597 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4598 to support NCONF routines in extension code. New function CONF_set_nconf()
4599 to allow functions which take an NCONF to also handle the old LHASH
4600 structure: this means that the old CONF compatible routines can be
4601 retained (in particular wrt extensions) without having to duplicate the
4602 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4605 *) Enhance the general user interface with mechanisms for inner control
4606 and with possibilities to have yes/no kind of prompts.
4609 *) Change all calls to low level digest routines in the library and
4610 applications to use EVP. Add missing calls to HMAC_cleanup() and
4611 don't assume HMAC_CTX can be copied using memcpy().
4612 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4614 *) Add the possibility to control engines through control names but with
4615 arbitrary arguments instead of just a string.
4616 Change the key loaders to take a UI_METHOD instead of a callback
4617 function pointer. NOTE: this breaks binary compatibility with earlier
4618 versions of OpenSSL [engine].
4619 Adapt the nCipher code for these new conditions and add a card insertion
4623 *) Enhance the general user interface with mechanisms to better support
4624 dialog box interfaces, application-defined prompts, the possibility
4625 to use defaults (for example default passwords from somewhere else)
4626 and interrupts/cancellations.
4629 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4630 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4633 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4634 tidy up some unnecessarily weird code in 'sk_new()').
4635 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4637 *) Change the key loading routines for ENGINEs to use the same kind
4638 callback (pem_password_cb) as all other routines that need this
4642 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4643 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4644 than this minimum value is recommended.
4647 *) New random seeder for OpenVMS, using the system process statistics
4648 that are easily reachable.
4651 *) Windows apparently can't transparently handle global
4652 variables defined in DLLs. Initialisations such as:
4654 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4656 wont compile. This is used by the any applications that need to
4657 declare their own ASN1 modules. This was fixed by adding the option
4658 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4659 needed for static libraries under Win32.
4662 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4663 setting of purpose and trust fields. New X509_STORE trust and
4664 purpose functions and tidy up setting in other SSL functions.
4667 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4668 structure. These are inherited by X509_STORE_CTX when it is
4669 initialised. This allows various defaults to be set in the
4670 X509_STORE structure (such as flags for CRL checking and custom
4671 purpose or trust settings) for functions which only use X509_STORE_CTX
4672 internally such as S/MIME.
4674 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4675 trust settings if they are not set in X509_STORE. This allows X509_STORE
4676 purposes and trust (in S/MIME for example) to override any set by default.
4678 Add command line options for CRL checking to smime, s_client and s_server
4682 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4683 are set then the CRL is looked up in the X509_STORE structure and
4684 its validity and signature checked, then if the certificate is found
4685 in the CRL the verify fails with a revoked error.
4687 Various new CRL related callbacks added to X509_STORE_CTX structure.
4689 Command line options added to 'verify' application to support this.
4691 This needs some additional work, such as being able to handle multiple
4692 CRLs with different times, extension based lookup (rather than just
4693 by subject name) and ultimately more complete V2 CRL extension
4697 *) Add a general user interface API (crypto/ui/). This is designed
4698 to replace things like des_read_password and friends (backward
4699 compatibility functions using this new API are provided).
4700 The purpose is to remove prompting functions from the DES code
4701 section as well as provide for prompting through dialog boxes in
4702 a window system and the like.
4705 *) Add "ex_data" support to ENGINE so implementations can add state at a
4706 per-structure level rather than having to store it globally.
4709 *) Make it possible for ENGINE structures to be copied when retrieved by
4710 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4711 This causes the "original" ENGINE structure to act like a template,
4712 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4713 operational state can be localised to each ENGINE structure, despite the
4714 fact they all share the same "methods". New ENGINE structures returned in
4715 this case have no functional references and the return value is the single
4716 structural reference. This matches the single structural reference returned
4717 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4721 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4722 needs to match any other type at all we need to manually clear the
4726 *) Changes to the "openssl engine" utility to include;
4727 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4728 about an ENGINE's available control commands.
4729 - executing control commands from command line arguments using the
4730 '-pre' and '-post' switches. '-post' is only used if '-t' is
4731 specified and the ENGINE is successfully initialised. The syntax for
4732 the individual commands are colon-separated, for example;
4733 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4736 *) New dynamic control command support for ENGINEs. ENGINEs can now
4737 declare their own commands (numbers), names (strings), descriptions,
4738 and input types for run-time discovery by calling applications. A
4739 subset of these commands are implicitly classed as "executable"
4740 depending on their input type, and only these can be invoked through
4741 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4742 can be based on user input, config files, etc). The distinction is
4743 that "executable" commands cannot return anything other than a boolean
4744 result and can only support numeric or string input, whereas some
4745 discoverable commands may only be for direct use through
4746 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4747 pointers, or other custom uses. The "executable" commands are to
4748 support parameterisations of ENGINE behaviour that can be
4749 unambiguously defined by ENGINEs and used consistently across any
4750 OpenSSL-based application. Commands have been added to all the
4751 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4752 control over shared-library paths without source code alterations.
4755 *) Changed all ENGINE implementations to dynamically allocate their
4756 ENGINEs rather than declaring them statically. Apart from this being
4757 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4758 this also allows the implementations to compile without using the
4759 internal engine_int.h header.
4762 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4763 'const' value. Any code that should be able to modify a RAND_METHOD
4764 should already have non-const pointers to it (ie. they should only
4765 modify their own ones).
4768 *) Made a variety of little tweaks to the ENGINE code.
4769 - "atalla" and "ubsec" string definitions were moved from header files
4770 to C code. "nuron" string definitions were placed in variables
4771 rather than hard-coded - allowing parameterisation of these values
4772 later on via ctrl() commands.
4773 - Removed unused "#if 0"'d code.
4774 - Fixed engine list iteration code so it uses ENGINE_free() to release
4775 structural references.
4776 - Constified the RAND_METHOD element of ENGINE structures.
4777 - Constified various get/set functions as appropriate and added
4778 missing functions (including a catch-all ENGINE_cpy that duplicates
4779 all ENGINE values onto a new ENGINE except reference counts/state).
4780 - Removed NULL parameter checks in get/set functions. Setting a method
4781 or function to NULL is a way of cancelling out a previously set
4782 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4783 and doesn't justify the extra error symbols and code.
4784 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4785 flags from engine_int.h to engine.h.
4786 - Changed prototypes for ENGINE handler functions (init(), finish(),
4787 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4790 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4791 to the algorithm using long division. The binary algorithm can be
4792 used only if the modulus is odd. On 32-bit systems, it is faster
4793 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4794 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4795 up to 450 bits. In 64-bit environments, the binary algorithm
4796 appears to be advantageous for much longer moduli; here we use it
4797 for moduli up to 2048 bits.
4800 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4801 could not support the combine flag in choice fields.
4804 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4805 extensions from a certificate request to the certificate.
4808 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4809 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4810 file: this allows the display of the certificate about to be
4811 signed to be customised, to allow certain fields to be included
4812 or excluded and extension details. The old system didn't display
4813 multicharacter strings properly, omitted fields not in the policy
4814 and couldn't display additional details such as extensions.
4817 *) Function EC_POINTs_mul for multiple scalar multiplication
4818 of an arbitrary number of elliptic curve points
4819 \sum scalars[i]*points[i],
4820 optionally including the generator defined for the EC_GROUP:
4821 scalar*generator + \sum scalars[i]*points[i].
4823 EC_POINT_mul is a simple wrapper function for the typical case
4824 that the point list has just one item (besides the optional
4828 *) First EC_METHODs for curves over GF(p):
4830 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4831 operations and provides various method functions that can also
4832 operate with faster implementations of modular arithmetic.
4834 EC_GFp_mont_method() reuses most functions that are part of
4835 EC_GFp_simple_method, but uses Montgomery arithmetic.
4837 [Bodo Moeller; point addition and point doubling
4838 implementation directly derived from source code provided by
4839 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4841 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4842 crypto/ec/ec_lib.c):
4844 Curves are EC_GROUP objects (with an optional group generator)
4845 based on EC_METHODs that are built into the library.
4847 Points are EC_POINT objects based on EC_GROUP objects.
4849 Most of the framework would be able to handle curves over arbitrary
4850 finite fields, but as there are no obvious types for fields other
4851 than GF(p), some functions are limited to that for now.
4854 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4855 that the file contains a complete HTTP response.
4858 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4859 change the def and num file printf format specifier from "%-40sXXX"
4860 to "%-39s XXX". The latter will always guarantee a space after the
4861 field while the former will cause them to run together if the field
4862 is 40 of more characters long.
4865 *) Constify the cipher and digest 'method' functions and structures
4866 and modify related functions to take constant EVP_MD and EVP_CIPHER
4870 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4871 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4874 *) Modify EVP_Digest*() routines so they now return values. Although the
4875 internal software routines can never fail additional hardware versions
4879 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4881 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4882 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4885 ERR_R_NESTED_ASN1_ERROR
4887 ERR_R_MISSING_ASN1_EOS
4888 were 4 .. 9, conflicting with
4889 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4891 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4892 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4894 Add new error code 'ERR_R_INTERNAL_ERROR'.
4897 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4901 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4902 sets the subject name for a new request or supersedes the
4903 subject name in a given request. Formats that can be parsed are
4904 'CN=Some Name, OU=myOU, C=IT'
4906 'CN=Some Name/OU=myOU/C=IT'.
4908 Add options '-batch' and '-verbose' to 'openssl req'.
4909 [Massimiliano Pala <madwolf@hackmasters.net>]
4911 *) Introduce the possibility to access global variables through
4912 functions on platform were that's the best way to handle exporting
4913 global variables in shared libraries. To enable this functionality,
4914 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4915 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4916 is normally done by Configure or something similar).
4918 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4919 in the source file (foo.c) like this:
4921 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4922 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4924 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4925 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4927 OPENSSL_DECLARE_GLOBAL(int,foo);
4928 #define foo OPENSSL_GLOBAL_REF(foo)
4929 OPENSSL_DECLARE_GLOBAL(double,bar);
4930 #define bar OPENSSL_GLOBAL_REF(bar)
4932 The #defines are very important, and therefore so is including the
4933 header file everywhere where the defined globals are used.
4935 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4936 of ASN.1 items, but that structure is a bit different.
4938 The largest change is in util/mkdef.pl which has been enhanced with
4939 better and easier to understand logic to choose which symbols should
4940 go into the Windows .def files as well as a number of fixes and code
4941 cleanup (among others, algorithm keywords are now sorted
4942 lexicographically to avoid constant rewrites).
4945 *) In BN_div() keep a copy of the sign of 'num' before writing the
4946 result to 'rm' because if rm==num the value will be overwritten
4947 and produce the wrong result if 'num' is negative: this caused
4948 problems with BN_mod() and BN_nnmod().
4951 *) Function OCSP_request_verify(). This checks the signature on an
4952 OCSP request and verifies the signer certificate. The signer
4953 certificate is just checked for a generic purpose and OCSP request
4957 *) Add OCSP_check_validity() function to check the validity of OCSP
4958 responses. OCSP responses are prepared in real time and may only
4959 be a few seconds old. Simply checking that the current time lies
4960 between thisUpdate and nextUpdate max reject otherwise valid responses
4961 caused by either OCSP responder or client clock inaccuracy. Instead
4962 we allow thisUpdate and nextUpdate to fall within a certain period of
4963 the current time. The age of the response can also optionally be
4964 checked. Two new options -validity_period and -status_age added to
4968 *) If signature or public key algorithm is unrecognized print out its
4969 OID rather that just UNKNOWN.
4972 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4973 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4974 ID to be generated from the issuer certificate alone which can then be
4975 passed to OCSP_id_issuer_cmp().
4978 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4979 ASN1 modules to export functions returning ASN1_ITEM pointers
4980 instead of the ASN1_ITEM structures themselves. This adds several
4981 new macros which allow the underlying ASN1 function/structure to
4982 be accessed transparently. As a result code should not use ASN1_ITEM
4983 references directly (such as &X509_it) but instead use the relevant
4984 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4985 use of the new ASN1 code on platforms where exporting structures
4986 is problematical (for example in shared libraries) but exporting
4987 functions returning pointers to structures is not.
4990 *) Add support for overriding the generation of SSL/TLS session IDs.
4991 These callbacks can be registered either in an SSL_CTX or per SSL.
4992 The purpose of this is to allow applications to control, if they wish,
4993 the arbitrary values chosen for use as session IDs, particularly as it
4994 can be useful for session caching in multiple-server environments. A
4995 command-line switch for testing this (and any client code that wishes
4996 to use such a feature) has been added to "s_server".
4997 [Geoff Thorpe, Lutz Jaenicke]
4999 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5000 of the form '#if defined(...) || defined(...) || ...' and
5001 '#if !defined(...) && !defined(...) && ...'. This also avoids
5002 the growing number of special cases it was previously handling.
5005 *) Make all configuration macros available for application by making
5006 sure they are available in opensslconf.h, by giving them names starting
5007 with "OPENSSL_" to avoid conflicts with other packages and by making
5008 sure e_os2.h will cover all platform-specific cases together with
5010 Additionally, it is now possible to define configuration/platform-
5011 specific names (called "system identities"). In the C code, these
5012 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5013 macro with the name beginning with "OPENSSL_SYS_", which is determined
5014 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5018 *) New option -set_serial to 'req' and 'x509' this allows the serial
5019 number to use to be specified on the command line. Previously self
5020 signed certificates were hard coded with serial number 0 and the
5021 CA options of 'x509' had to use a serial number in a file which was
5025 *) New options to 'ca' utility to support V2 CRL entry extensions.
5026 Currently CRL reason, invalidity date and hold instruction are
5027 supported. Add new CRL extensions to V3 code and some new objects.
5030 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5031 disable standard block padding (aka PKCS#5 padding) in the EVP
5032 API, which was previously mandatory. This means that the data is
5033 not padded in any way and so the total length much be a multiple
5034 of the block size, otherwise an error occurs.
5037 *) Initial (incomplete) OCSP SSL support.
5040 *) New function OCSP_parse_url(). This splits up a URL into its host,
5041 port and path components: primarily to parse OCSP URLs. New -url
5042 option to ocsp utility.
5045 *) New nonce behavior. The return value of OCSP_check_nonce() now
5046 reflects the various checks performed. Applications can decide
5047 whether to tolerate certain situations such as an absent nonce
5048 in a response when one was present in a request: the ocsp application
5049 just prints out a warning. New function OCSP_add1_basic_nonce()
5050 this is to allow responders to include a nonce in a response even if
5051 the request is nonce-less.
5054 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5055 skipped when using openssl x509 multiple times on a single input file,
5056 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5059 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5060 set string type: to handle setting ASN1_TIME structures. Fix ca
5061 utility to correctly initialize revocation date of CRLs.
5064 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5065 the clients preferred ciphersuites and rather use its own preferences.
5066 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5067 Internet Explorer by ensuring unchanged hash method during stepup.
5068 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5071 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5072 to aes and add a new 'exist' option to print out symbols that don't
5076 *) Additional options to ocsp utility to allow flags to be set and
5077 additional certificates supplied.
5080 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5081 OCSP client a number of certificate to only verify the response
5085 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5086 handle the new API. Currently only ECB, CBC modes supported. Add new
5089 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5090 Encryption Standard (AES) Ciphersuites for Transport Layer
5091 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5092 not enabled by default and were not part of the "ALL" ciphersuite
5093 alias because they were not yet official; they could be
5094 explicitly requested by specifying the "AESdraft" ciphersuite
5095 group alias. In the final release of OpenSSL 0.9.7, the group
5096 alias is called "AES" and is part of "ALL".)
5097 [Ben Laurie, Steve Henson, Bodo Moeller]
5099 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5100 request to response.
5103 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5104 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5105 extract information from a certificate request. OCSP_response_create()
5106 creates a response and optionally adds a basic response structure.
5107 OCSP_basic_add1_status() adds a complete single response to a basic
5108 response and returns the OCSP_SINGLERESP structure just added (to allow
5109 extensions to be included for example). OCSP_basic_add1_cert() adds a
5110 certificate to a basic response and OCSP_basic_sign() signs a basic
5111 response with various flags. New helper functions ASN1_TIME_check()
5112 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5113 (converts ASN1_TIME to GeneralizedTime).
5116 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5117 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5118 structure from a certificate. X509_pubkey_digest() digests the public_key
5119 contents: this is used in various key identifiers.
5122 *) Make sk_sort() tolerate a NULL argument.
5123 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5125 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5126 passed by the function are trusted implicitly. If any of them signed the
5127 response then it is assumed to be valid and is not verified.
5130 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5131 to data. This was previously part of the PKCS7 ASN1 code. This
5132 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5133 [Steve Henson, reported by Kenneth R. Robinette
5134 <support@securenetterm.com>]
5136 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5137 routines: without these tracing memory leaks is very painful.
5138 Fix leaks in PKCS12 and PKCS7 routines.
5141 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5142 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5143 effectively meant GeneralizedTime would never be used. Now it
5144 is initialised to -1 but X509_time_adj() now has to check the value
5145 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5146 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5147 [Steve Henson, reported by Kenneth R. Robinette
5148 <support@securenetterm.com>]
5150 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5151 result in a zero length in the ASN1_INTEGER structure which was
5152 not consistent with the structure when d2i_ASN1_INTEGER() was used
5153 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5154 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5155 where it did not print out a minus for negative ASN1_INTEGER.
5158 *) Add summary printout to ocsp utility. The various functions which
5159 convert status values to strings have been renamed to:
5160 OCSP_response_status_str(), OCSP_cert_status_str() and
5161 OCSP_crl_reason_str() and are no longer static. New options
5162 to verify nonce values and to disable verification. OCSP response
5163 printout format cleaned up.
5166 *) Add additional OCSP certificate checks. These are those specified
5167 in RFC2560. This consists of two separate checks: the CA of the
5168 certificate being checked must either be the OCSP signer certificate
5169 or the issuer of the OCSP signer certificate. In the latter case the
5170 OCSP signer certificate must contain the OCSP signing extended key
5171 usage. This check is performed by attempting to match the OCSP
5172 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5173 in the OCSP_CERTID structures of the response.
5176 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5177 and related routines. This uses the standard OpenSSL certificate
5178 verify routines to perform initial checks (just CA validity) and
5179 to obtain the certificate chain. Then additional checks will be
5180 performed on the chain. Currently the root CA is checked to see
5181 if it is explicitly trusted for OCSP signing. This is used to set
5182 a root CA as a global signing root: that is any certificate that
5183 chains to that CA is an acceptable OCSP signing certificate.
5186 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5187 extensions from a separate configuration file.
5188 As when reading extensions from the main configuration file,
5189 the '-extensions ...' option may be used for specifying the
5191 [Massimiliano Pala <madwolf@comune.modena.it>]
5193 *) New OCSP utility. Allows OCSP requests to be generated or
5194 read. The request can be sent to a responder and the output
5195 parsed, outputed or printed in text form. Not complete yet:
5196 still needs to check the OCSP response validity.
5199 *) New subcommands for 'openssl ca':
5200 'openssl ca -status <serial>' prints the status of the cert with
5201 the given serial number (according to the index file).
5202 'openssl ca -updatedb' updates the expiry status of certificates
5204 [Massimiliano Pala <madwolf@comune.modena.it>]
5206 *) New '-newreq-nodes' command option to CA.pl. This is like
5207 '-newreq', but calls 'openssl req' with the '-nodes' option
5208 so that the resulting key is not encrypted.
5209 [Damien Miller <djm@mindrot.org>]
5211 *) New configuration for the GNU Hurd.
5212 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5214 *) Initial code to implement OCSP basic response verify. This
5215 is currently incomplete. Currently just finds the signer's
5216 certificate and verifies the signature on the response.
5219 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5220 value of OPENSSLDIR. This is available via the new '-d' option
5221 to 'openssl version', and is also included in 'openssl version -a'.
5224 *) Allowing defining memory allocation callbacks that will be given
5225 file name and line number information in additional arguments
5226 (a const char* and an int). The basic functionality remains, as
5227 well as the original possibility to just replace malloc(),
5228 realloc() and free() by functions that do not know about these
5229 additional arguments. To register and find out the current
5230 settings for extended allocation functions, the following
5231 functions are provided:
5233 CRYPTO_set_mem_ex_functions
5234 CRYPTO_set_locked_mem_ex_functions
5235 CRYPTO_get_mem_ex_functions
5236 CRYPTO_get_locked_mem_ex_functions
5238 These work the same way as CRYPTO_set_mem_functions and friends.
5239 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5240 extended allocation function is enabled.
5241 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5242 a conventional allocation function is enabled.
5243 [Richard Levitte, Bodo Moeller]
5245 *) Finish off removing the remaining LHASH function pointer casts.
5246 There should no longer be any prototype-casting required when using
5247 the LHASH abstraction, and any casts that remain are "bugs". See
5248 the callback types and macros at the head of lhash.h for details
5249 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5252 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5253 If /dev/[u]random devices are not available or do not return enough
5254 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5256 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5257 /etc/entropy will be queried once each in this sequence, quering stops
5258 when enough entropy was collected without querying more sockets.
5261 *) Change the Unix RAND_poll() variant to be able to poll several
5262 random devices, as specified by DEVRANDOM, until a sufficient amount
5263 of data has been collected. We spend at most 10 ms on each file
5264 (select timeout) and read in non-blocking mode. DEVRANDOM now
5265 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5266 (previously it was just the string "/dev/urandom"), so on typical
5267 platforms the 10 ms delay will never occur.
5268 Also separate out the Unix variant to its own file, rand_unix.c.
5269 For VMS, there's a currently-empty rand_vms.c.
5272 *) Move OCSP client related routines to ocsp_cl.c. These
5273 provide utility functions which an application needing
5274 to issue a request to an OCSP responder and analyse the
5275 response will typically need: as opposed to those which an
5276 OCSP responder itself would need which will be added later.
5278 OCSP_request_sign() signs an OCSP request with an API similar
5279 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5280 response. OCSP_response_get1_basic() extracts basic response
5281 from response. OCSP_resp_find_status(): finds and extracts status
5282 information from an OCSP_CERTID structure (which will be created
5283 when the request structure is built). These are built from lower
5284 level functions which work on OCSP_SINGLERESP structures but
5285 wont normally be used unless the application wishes to examine
5286 extensions in the OCSP response for example.
5288 Replace nonce routines with a pair of functions.
5289 OCSP_request_add1_nonce() adds a nonce value and optionally
5290 generates a random value. OCSP_check_nonce() checks the
5291 validity of the nonce in an OCSP response.
5294 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5295 This doesn't copy the supplied OCSP_CERTID and avoids the
5296 need to free up the newly created id. Change return type
5297 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5298 This can then be used to add extensions to the request.
5299 Deleted OCSP_request_new(), since most of its functionality
5300 is now in OCSP_REQUEST_new() (and the case insensitive name
5301 clash) apart from the ability to set the request name which
5302 will be added elsewhere.
5305 *) Update OCSP API. Remove obsolete extensions argument from
5306 various functions. Extensions are now handled using the new
5307 OCSP extension code. New simple OCSP HTTP function which
5308 can be used to send requests and parse the response.
5311 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5312 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5313 uses the special reorder version of SET OF to sort the attributes
5314 and reorder them to match the encoded order. This resolves a long
5315 standing problem: a verify on a PKCS7 structure just after signing
5316 it used to fail because the attribute order did not match the
5317 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5318 it uses the received order. This is necessary to tolerate some broken
5319 software that does not order SET OF. This is handled by encoding
5320 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5321 to produce the required SET OF.
5324 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5325 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5326 files to get correct declarations of the ASN.1 item variables.
5329 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5330 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5331 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5332 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5333 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5334 ASN1_ITEM and no wrapper functions.
5337 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5338 replace the old function pointer based I/O routines. Change most of
5339 the *_d2i_bio() and *_d2i_fp() functions to use these.
5342 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5343 lines, recognice more "algorithms" that can be deselected, and make
5344 it complain about algorithm deselection that isn't recognised.
5347 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5348 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5349 to use new functions. Add NO_ASN1_OLD which can be set to remove
5350 some old style ASN1 functions: this can be used to determine if old
5351 code will still work when these eventually go away.
5354 *) New extension functions for OCSP structures, these follow the
5355 same conventions as certificates and CRLs.
5358 *) New function X509V3_add1_i2d(). This automatically encodes and
5359 adds an extension. Its behaviour can be customised with various
5360 flags to append, replace or delete. Various wrappers added for
5361 certifcates and CRLs.
5364 *) Fix to avoid calling the underlying ASN1 print routine when
5365 an extension cannot be parsed. Correct a typo in the
5366 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5369 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5370 entries for variables.
5373 *) Add functionality to apps/openssl.c for detecting locking
5374 problems: As the program is single-threaded, all we have
5375 to do is register a locking callback using an array for
5376 storing which locks are currently held by the program.
5379 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5380 SSL_get_ex_data_X509_STORE_idx(), which is used in
5381 ssl_verify_cert_chain() and thus can be called at any time
5382 during TLS/SSL handshakes so that thread-safety is essential.
5383 Unfortunately, the ex_data design is not at all suited
5384 for multi-threaded use, so it probably should be abolished.
5387 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5388 [Broadcom, tweaked and integrated by Geoff Thorpe]
5390 *) Move common extension printing code to new function
5391 X509V3_print_extensions(). Reorganise OCSP print routines and
5392 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5395 *) New function X509_signature_print() to remove duplication in some
5399 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5400 set (this was treated exactly the same as SET OF previously). This
5401 is used to reorder the STACK representing the structure to match the
5402 encoding. This will be used to get round a problem where a PKCS7
5403 structure which was signed could not be verified because the STACK
5404 order did not reflect the encoded order.
5407 *) Reimplement the OCSP ASN1 module using the new code.
5410 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5411 for its ASN1 operations. The old style function pointers still exist
5412 for now but they will eventually go away.
5415 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5416 completely replaces the old ASN1 functionality with a table driven
5417 encoder and decoder which interprets an ASN1_ITEM structure describing
5418 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5419 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5420 has also been converted to the new form.
5423 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5424 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5425 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5426 for negative moduli.
5429 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5430 of not touching the result's sign bit.
5433 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5437 *) Changed the LHASH code to use prototypes for callbacks, and created
5438 macros to declare and implement thin (optionally static) functions
5439 that provide type-safety and avoid function pointer casting for the
5440 type-specific callbacks.
5443 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5445 [Veers Staats <staatsvr@asc.hpc.mil>,
5446 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5448 *) Reformat the FAQ so the different questions and answers can be divided
5449 in sections depending on the subject.
5452 *) Have the zlib compression code load ZLIB.DLL dynamically under
5456 *) New function BN_mod_sqrt for computing square roots modulo a prime
5457 (using the probabilistic Tonelli-Shanks algorithm unless
5458 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5459 be handled deterministically).
5460 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5462 *) Make BN_mod_inverse faster by explicitly handling small quotients
5463 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5464 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5467 *) New function BN_kronecker.
5470 *) Fix BN_gcd so that it works on negative inputs; the result is
5471 positive unless both parameters are zero.
5472 Previously something reasonably close to an infinite loop was
5473 possible because numbers could be growing instead of shrinking
5474 in the implementation of Euclid's algorithm.
5477 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5478 sign of the number in question.
5480 Fix BN_is_word(a,w) to work correctly for w == 0.
5482 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5483 because its test if the absolute value of 'a' equals 'w'.
5484 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5485 it exists mostly for use in the implementations of BN_is_zero(),
5486 BN_is_one(), and BN_is_word().
5489 *) New function BN_swap.
5492 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5493 the exponentiation functions are more likely to produce reasonable
5494 results on negative inputs.
5497 *) Change BN_mod_mul so that the result is always non-negative.
5498 Previously, it could be negative if one of the factors was negative;
5499 I don't think anyone really wanted that behaviour.
5502 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5503 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5504 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5505 and add new functions:
5514 BN_mod_lshift1_quick
5518 These functions always generate non-negative results.
5520 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5521 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5523 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5524 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5525 be reduced modulo m.
5526 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5529 The following entry accidentily appeared in the CHANGES file
5530 distributed with OpenSSL 0.9.7. The modifications described in
5531 it do *not* apply to OpenSSL 0.9.7.
5533 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5534 was actually never needed) and in BN_mul(). The removal in BN_mul()
5535 required a small change in bn_mul_part_recursive() and the addition
5536 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5537 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5538 bn_sub_words() and bn_add_words() except they take arrays with
5543 *) In 'openssl passwd', verify passwords read from the terminal
5544 unless the '-salt' option is used (which usually means that
5545 verification would just waste user's time since the resulting
5546 hash is going to be compared with some given password hash)
5547 or the new '-noverify' option is used.
5549 This is an incompatible change, but it does not affect
5550 non-interactive use of 'openssl passwd' (passwords on the command
5551 line, '-stdin' option, '-in ...' option) and thus should not
5555 *) Remove all references to RSAref, since there's no more need for it.
5558 *) Make DSO load along a path given through an environment variable
5559 (SHLIB_PATH) with shl_load().
5562 *) Constify the ENGINE code as a result of BIGNUM constification.
5563 Also constify the RSA code and most things related to it. In a
5564 few places, most notable in the depth of the ASN.1 code, ugly
5565 casts back to non-const were required (to be solved at a later
5569 *) Make it so the openssl application has all engines loaded by default.
5572 *) Constify the BIGNUM routines a little more.
5575 *) Add the following functions:
5577 ENGINE_load_cswift()
5579 ENGINE_load_atalla()
5581 ENGINE_load_builtin_engines()
5583 That way, an application can itself choose if external engines that
5584 are built-in in OpenSSL shall ever be used or not. The benefit is
5585 that applications won't have to be linked with libdl or other dso
5586 libraries unless it's really needed.
5588 Changed 'openssl engine' to load all engines on demand.
5589 Changed the engine header files to avoid the duplication of some
5590 declarations (they differed!).
5593 *) 'openssl engine' can now list capabilities.
5596 *) Better error reporting in 'openssl engine'.
5599 *) Never call load_dh_param(NULL) in s_server.
5602 *) Add engine application. It can currently list engines by name and
5603 identity, and test if they are actually available.
5606 *) Improve RPM specification file by forcing symbolic linking and making
5607 sure the installed documentation is also owned by root.root.
5608 [Damien Miller <djm@mindrot.org>]
5610 *) Give the OpenSSL applications more possibilities to make use of
5611 keys (public as well as private) handled by engines.
5614 *) Add OCSP code that comes from CertCo.
5617 *) Add VMS support for the Rijndael code.
5620 *) Added untested support for Nuron crypto accelerator.
5623 *) Add support for external cryptographic devices. This code was
5624 previously distributed separately as the "engine" branch.
5625 [Geoff Thorpe, Richard Levitte]
5627 *) Rework the filename-translation in the DSO code. It is now possible to
5628 have far greater control over how a "name" is turned into a filename
5629 depending on the operating environment and any oddities about the
5630 different shared library filenames on each system.
5633 *) Support threads on FreeBSD-elf in Configure.
5636 *) Fix for SHA1 assembly problem with MASM: it produces
5637 warnings about corrupt line number information when assembling
5638 with debugging information. This is caused by the overlapping
5640 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5643 NCONF_get_number() has no error checking at all. As a replacement,
5644 NCONF_get_number_e() is defined (_e for "error checking") and is
5645 promoted strongly. The old NCONF_get_number is kept around for
5646 binary backward compatibility.
5647 Make it possible for methods to load from something other than a BIO,
5648 by providing a function pointer that is given a name instead of a BIO.
5649 For example, this could be used to load configuration data from an
5653 *) Fix for non blocking accept BIOs. Added new I/O special reason
5654 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5655 with non blocking I/O was not possible because no retry code was
5656 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5660 *) Added the beginnings of Rijndael support.
5663 *) Fix for bug in DirectoryString mask setting. Add support for
5664 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5665 to allow certificate printing to more controllable, additional
5666 'certopt' option to 'x509' to allow new printing options to be
5670 *) Clean old EAY MD5 hack from e_os.h.
5673 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5675 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5676 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5677 [Joe Orton, Steve Henson]
5679 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5681 *) Fix additional bug revealed by the NISCC test suite:
5683 Stop bug triggering large recursion when presented with
5684 certain ASN.1 tags (CVE-2003-0851)
5687 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5689 *) Fix various bugs revealed by running the NISCC test suite:
5691 Stop out of bounds reads in the ASN1 code when presented with
5692 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5694 If verify callback ignores invalid public key errors don't try to check
5695 certificate signature with the NULL public key.
5699 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5700 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5704 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5705 extra data after the compression methods not only for TLS 1.0
5706 but also for SSL 3.0 (as required by the specification).
5707 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5709 *) Change X509_certificate_type() to mark the key as exported/exportable
5710 when it's 512 *bits* long, not 512 bytes.
5713 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5715 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5716 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5717 a protocol version number mismatch like a decryption error
5718 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5721 *) Turn on RSA blinding by default in the default implementation
5722 to avoid a timing attack. Applications that don't want it can call
5723 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5724 They would be ill-advised to do so in most cases.
5725 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5727 *) Change RSA blinding code so that it works when the PRNG is not
5728 seeded (in this case, the secret RSA exponent is abused as
5729 an unpredictable seed -- if it is not unpredictable, there
5730 is no point in blinding anyway). Make RSA blinding thread-safe
5731 by remembering the creator's thread ID in rsa->blinding and
5732 having all other threads use local one-time blinding factors
5733 (this requires more computation than sharing rsa->blinding, but
5734 avoids excessive locking; and if an RSA object is not shared
5735 between threads, blinding will still be very fast).
5738 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5740 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5741 via timing by performing a MAC computation even if incorrrect
5742 block cipher padding has been found. This is a countermeasure
5743 against active attacks where the attacker has to distinguish
5744 between bad padding and a MAC verification error. (CVE-2003-0078)
5746 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5747 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5748 Martin Vuagnoux (EPFL, Ilion)]
5750 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5752 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5753 memory from it's contents. This is done with a counter that will
5754 place alternating values in each byte. This can be used to solve
5755 two issues: 1) the removal of calls to memset() by highly optimizing
5756 compilers, and 2) cleansing with other values than 0, since those can
5757 be read through on certain media, for example a swap space on disk.
5760 *) Bugfix: client side session caching did not work with external caching,
5761 because the session->cipher setting was not restored when reloading
5762 from the external cache. This problem was masked, when
5763 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5764 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5767 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5768 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5769 [Zeev Lieber <zeev-l@yahoo.com>]
5771 *) Undo an undocumented change introduced in 0.9.6e which caused
5772 repeated calls to OpenSSL_add_all_ciphers() and
5773 OpenSSL_add_all_digests() to be ignored, even after calling
5777 *) Change the default configuration reader to deal with last line not
5778 being properly terminated.
5781 *) Change X509_NAME_cmp() so it applies the special rules on handling
5782 DN values that are of type PrintableString, as well as RDNs of type
5783 emailAddress where the value has the type ia5String.
5784 [stefank@valicert.com via Richard Levitte]
5786 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5787 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5788 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5789 the bitwise-OR of the two for use by the majority of applications
5790 wanting this behaviour, and update the docs. The documented
5791 behaviour and actual behaviour were inconsistent and had been
5792 changing anyway, so this is more a bug-fix than a behavioural
5794 [Geoff Thorpe, diagnosed by Nadav Har'El]
5796 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5797 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5800 *) Fix initialization code race conditions in
5801 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5802 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5803 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5804 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5805 ssl2_get_cipher_by_char(),
5806 ssl3_get_cipher_by_char().
5807 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5809 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5810 the cached sessions are flushed, as the remove_cb() might use ex_data
5811 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5812 (see [openssl.org #212]).
5813 [Geoff Thorpe, Lutz Jaenicke]
5815 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5816 length, instead of the encoding length to d2i_ASN1_OBJECT.
5819 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5821 *) [In 0.9.6g-engine release:]
5822 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5823 [Lynn Gazis <lgazis@rainbow.com>]
5825 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5827 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5828 and get fix the header length calculation.
5829 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5830 Alon Kantor <alonk@checkpoint.com> (and others),
5833 *) Use proper error handling instead of 'assertions' in buffer
5834 overflow checks added in 0.9.6e. This prevents DoS (the
5835 assertions could call abort()).
5836 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5838 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5840 *) Add various sanity checks to asn1_get_length() to reject
5841 the ASN1 length bytes if they exceed sizeof(long), will appear
5842 negative or the content length exceeds the length of the
5844 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5846 *) Fix cipher selection routines: ciphers without encryption had no flags
5847 for the cipher strength set and where therefore not handled correctly
5848 by the selection routines (PR #130).
5851 *) Fix EVP_dsa_sha macro.
5855 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5856 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5857 that was added in OpenSSL 0.9.6d.
5859 As the countermeasure turned out to be incompatible with some
5860 broken SSL implementations, the new option is part of SSL_OP_ALL.
5861 SSL_OP_ALL is usually employed when compatibility with weird SSL
5862 implementations is desired (e.g. '-bugs' option to 's_client' and
5863 's_server'), so the new option is automatically set in many
5867 *) Changes in security patch:
5869 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5870 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5871 Air Force Materiel Command, USAF, under agreement number
5874 *) Add various sanity checks to asn1_get_length() to reject
5875 the ASN1 length bytes if they exceed sizeof(long), will appear
5876 negative or the content length exceeds the length of the
5877 supplied buffer. (CVE-2002-0659)
5878 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5880 *) Assertions for various potential buffer overflows, not known to
5882 [Ben Laurie (CHATS)]
5884 *) Various temporary buffers to hold ASCII versions of integers were
5885 too small for 64 bit platforms. (CVE-2002-0655)
5886 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5888 *) Remote buffer overflow in SSL3 protocol - an attacker could
5889 supply an oversized session ID to a client. (CVE-2002-0656)
5890 [Ben Laurie (CHATS)]
5892 *) Remote buffer overflow in SSL2 protocol - an attacker could
5893 supply an oversized client master key. (CVE-2002-0656)
5894 [Ben Laurie (CHATS)]
5896 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5898 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5899 encoded as NULL) with id-dsa-with-sha1.
5900 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5902 *) Check various X509_...() return values in apps/req.c.
5903 [Nils Larsch <nla@trustcenter.de>]
5905 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5906 an end-of-file condition would erronously be flagged, when the CRLF
5907 was just at the end of a processed block. The bug was discovered when
5908 processing data through a buffering memory BIO handing the data to a
5909 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5910 <ptsekov@syntrex.com> and Nedelcho Stanev.
5913 *) Implement a countermeasure against a vulnerability recently found
5914 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5915 before application data chunks to avoid the use of known IVs
5916 with data potentially chosen by the attacker.
5919 *) Fix length checks in ssl3_get_client_hello().
5922 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5923 to prevent ssl3_read_internal() from incorrectly assuming that
5924 ssl3_read_bytes() found application data while handshake
5925 processing was enabled when in fact s->s3->in_read_app_data was
5926 merely automatically cleared during the initial handshake.
5927 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5929 *) Fix object definitions for Private and Enterprise: they were not
5930 recognized in their shortname (=lowercase) representation. Extend
5931 obj_dat.pl to issue an error when using undefined keywords instead
5932 of silently ignoring the problem (Svenning Sorensen
5933 <sss@sss.dnsalias.net>).
5936 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5937 generators, i.e. generators other than 2 and 5. (Previously, the
5938 code did not properly initialise the 'add' and 'rem' values to
5939 BN_generate_prime().)
5941 In the new general case, we do not insist that 'generator' is
5942 actually a primitive root: This requirement is rather pointless;
5943 a generator of the order-q subgroup is just as good, if not
5947 *) Map new X509 verification errors to alerts. Discovered and submitted by
5948 Tom Wu <tom@arcot.com>.
5951 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5952 returning non-zero before the data has been completely received
5953 when using non-blocking I/O.
5954 [Bodo Moeller; problem pointed out by John Hughes]
5956 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5957 [Ben Laurie, Lutz Jaenicke]
5959 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5960 Yoram Zahavi <YoramZ@gilian.com>).
5963 *) Add information about CygWin 1.3 and on, and preserve proper
5964 configuration for the versions before that.
5965 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5967 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5968 check whether we deal with a copy of a session and do not delete from
5969 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5970 <izhar@checkpoint.com>.
5973 *) Do not store session data into the internal session cache, if it
5974 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5975 flag is set). Proposed by Aslam <aslam@funk.com>.
5978 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5982 *) [In 0.9.6d-engine release:]
5983 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5984 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5986 *) Add the configuration target linux-s390x.
5987 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5989 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5990 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5991 variable as an indication that a ClientHello message has been
5992 received. As the flag value will be lost between multiple
5993 invocations of ssl3_accept when using non-blocking I/O, the
5994 function may not be aware that a handshake has actually taken
5995 place, thus preventing a new session from being added to the
5998 To avoid this problem, we now set s->new_session to 2 instead of
5999 using a local variable.
6000 [Lutz Jaenicke, Bodo Moeller]
6002 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6003 if the SSL_R_LENGTH_MISMATCH error is detected.
6004 [Geoff Thorpe, Bodo Moeller]
6006 *) New 'shared_ldflag' column in Configure platform table.
6009 *) Fix EVP_CIPHER_mode macro.
6010 ["Dan S. Camper" <dan@bti.net>]
6012 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6013 type, we must throw them away by setting rr->length to 0.
6014 [D P Chang <dpc@qualys.com>]
6016 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6018 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6019 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6020 worked incorrectly for those cases where range = 10..._2 and
6021 3*range is two bits longer than range.)
6024 *) Only add signing time to PKCS7 structures if it is not already
6028 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6029 OBJ_ld_ce should be OBJ_id_ce.
6030 Also some ip-pda OIDs in crypto/objects/objects.txt were
6031 incorrect (cf. RFC 3039).
6032 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6034 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6035 returns early because it has nothing to do.
6036 [Andy Schneider <andy.schneider@bjss.co.uk>]
6038 *) [In 0.9.6c-engine release:]
6039 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6040 [Andy Schneider <andy.schneider@bjss.co.uk>]
6042 *) [In 0.9.6c-engine release:]
6043 Add support for Cryptographic Appliance's keyserver technology.
6044 (Use engine 'keyclient')
6045 [Cryptographic Appliances and Geoff Thorpe]
6047 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6048 is called via tools/c89.sh because arguments have to be
6049 rearranged (all '-L' options must appear before the first object
6051 [Richard Shapiro <rshapiro@abinitio.com>]
6053 *) [In 0.9.6c-engine release:]
6054 Add support for Broadcom crypto accelerator cards, backported
6056 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6058 *) [In 0.9.6c-engine release:]
6059 Add support for SureWare crypto accelerator cards from
6060 Baltimore Technologies. (Use engine 'sureware')
6061 [Baltimore Technologies and Mark Cox]
6063 *) [In 0.9.6c-engine release:]
6064 Add support for crypto accelerator cards from Accelerated
6065 Encryption Processing, www.aep.ie. (Use engine 'aep')
6066 [AEP Inc. and Mark Cox]
6068 *) Add a configuration entry for gcc on UnixWare.
6069 [Gary Benson <gbenson@redhat.com>]
6071 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6072 messages are stored in a single piece (fixed-length part and
6073 variable-length part combined) and fix various bugs found on the way.
6076 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6077 instead. BIO_gethostbyname() does not know what timeouts are
6078 appropriate, so entries would stay in cache even when they have
6080 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6082 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6083 faced with a pathologically small ClientHello fragment that does
6084 not contain client_version: Instead of aborting with an error,
6085 simply choose the highest available protocol version (i.e.,
6086 TLS 1.0 unless it is disabled). In practice, ClientHello
6087 messages are never sent like this, but this change gives us
6088 strictly correct behaviour at least for TLS.
6091 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6092 never resets s->method to s->ctx->method when called from within
6093 one of the SSL handshake functions.
6094 [Bodo Moeller; problem pointed out by Niko Baric]
6096 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6097 (sent using the client's version number) if client_version is
6098 smaller than the protocol version in use. Also change
6099 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6100 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6101 the client will at least see that alert.
6104 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6108 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6109 client receives HelloRequest while in a handshake.
6110 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6112 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6113 should end in 'break', not 'goto end' which circuments various
6114 cleanups done in state SSL_ST_OK. But session related stuff
6115 must be disabled for SSL_ST_OK in the case that we just sent a
6118 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6119 before just sending a HelloRequest.
6120 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6122 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6123 reveal whether illegal block cipher padding was found or a MAC
6124 verification error occured. (Neither SSLerr() codes nor alerts
6125 are directly visible to potential attackers, but the information
6126 may leak via logfiles.)
6128 Similar changes are not required for the SSL 2.0 implementation
6129 because the number of padding bytes is sent in clear for SSL 2.0,
6130 and the extra bytes are just ignored. However ssl/s2_pkt.c
6131 failed to verify that the purported number of padding bytes is in
6135 *) Add OpenUNIX-8 support including shared libraries
6136 (Boyd Lynn Gerber <gerberb@zenez.com>).
6139 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6140 'wristwatch attack' using huge encoding parameters (cf.
6141 James H. Manger's CRYPTO 2001 paper). Note that the
6142 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6143 encoding parameters and hence was not vulnerable.
6146 *) BN_sqr() bug fix.
6147 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6149 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6150 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6151 followed by modular reduction.
6152 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6154 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6155 equivalent based on BN_pseudo_rand() instead of BN_rand().
6158 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6159 This function was broken, as the check for a new client hello message
6160 to handle SGC did not allow these large messages.
6161 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6164 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6167 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6168 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6171 *) Rework the configuration and shared library support for Tru64 Unix.
6172 The configuration part makes use of modern compiler features and
6173 still retains old compiler behavior for those that run older versions
6174 of the OS. The shared library support part includes a variant that
6175 uses the RPATH feature, and is available through the special
6176 configuration target "alpha-cc-rpath", which will never be selected
6178 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6180 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6181 with the same message size as in ssl3_get_certificate_request().
6182 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6183 messages might inadvertently be reject as too long.
6184 [Petr Lampa <lampa@fee.vutbr.cz>]
6186 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6189 *) Modified SSL library such that the verify_callback that has been set
6190 specificly for an SSL object with SSL_set_verify() is actually being
6191 used. Before the change, a verify_callback set with this function was
6192 ignored and the verify_callback() set in the SSL_CTX at the time of
6193 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6194 to allow the necessary settings.
6197 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6198 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6199 done automatically (in contradiction to the requirements of the C
6200 standard). This made problems when used from OpenSSH.
6203 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6204 dh->length and always used
6206 BN_rand_range(priv_key, dh->p).
6208 BN_rand_range() is not necessary for Diffie-Hellman, and this
6209 specific range makes Diffie-Hellman unnecessarily inefficient if
6210 dh->length (recommended exponent length) is much smaller than the
6211 length of dh->p. We could use BN_rand_range() if the order of
6212 the subgroup was stored in the DH structure, but we only have
6217 BN_rand(priv_key, l, ...)
6219 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6225 RSA_eay_public_encrypt
6226 RSA_eay_private_decrypt
6227 RSA_eay_private_encrypt (signing)
6228 RSA_eay_public_decrypt (signature verification)
6230 (default implementations for RSA_public_encrypt,
6231 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6232 always reject numbers >= n.
6235 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6236 to synchronize access to 'locking_thread'. This is necessary on
6237 systems where access to 'locking_thread' (an 'unsigned long'
6238 variable) is not atomic.
6241 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6242 *before* setting the 'crypto_lock_rand' flag. The previous code had
6243 a race condition if 0 is a valid thread ID.
6244 [Travis Vitek <vitek@roguewave.com>]
6246 *) Add support for shared libraries under Irix.
6247 [Albert Chin-A-Young <china@thewrittenword.com>]
6249 *) Add configuration option to build on Linux on both big-endian and
6251 [Ralf Baechle <ralf@uni-koblenz.de>]
6253 *) Add the possibility to create shared libraries on HP-UX.
6256 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6258 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6259 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6260 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6261 PRNG state recovery was possible based on the output of
6262 one PRNG request appropriately sized to gain knowledge on
6263 'md' followed by enough consecutive 1-byte PRNG requests
6264 to traverse all of 'state'.
6266 1. When updating 'md_local' (the current thread's copy of 'md')
6267 during PRNG output generation, hash all of the previous
6268 'md_local' value, not just the half used for PRNG output.
6270 2. Make the number of bytes from 'state' included into the hash
6271 independent from the number of PRNG bytes requested.
6273 The first measure alone would be sufficient to avoid
6274 Markku-Juhani's attack. (Actually it had never occurred
6275 to me that the half of 'md_local' used for chaining was the
6276 half from which PRNG output bytes were taken -- I had always
6277 assumed that the secret half would be used.) The second
6278 measure makes sure that additional data from 'state' is never
6279 mixed into 'md_local' in small portions; this heuristically
6280 further strengthens the PRNG.
6283 *) Fix crypto/bn/asm/mips3.s.
6286 *) When only the key is given to "enc", the IV is undefined. Print out
6287 an error message in this case.
6290 *) Handle special case when X509_NAME is empty in X509 printing routines.
6293 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6294 positive and less than q.
6297 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6298 used: it isn't thread safe and the add_lock_callback should handle
6300 [Paul Rose <Paul.Rose@bridge.com>]
6302 *) Verify that incoming data obeys the block size in
6303 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6307 [Ulf Möller, Bodo Möller]
6309 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6310 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6311 when fixing the server behaviour for backwards-compatible 'client
6312 hello' messages. (Note that the attack is impractical against
6313 SSL 3.0 and TLS 1.0 anyway because length and version checking
6314 means that the probability of guessing a valid ciphertext is
6315 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6318 Before 0.9.5, the countermeasure (hide the error by generating a
6319 random 'decryption result') did not work properly because
6320 ERR_clear_error() was missing, meaning that SSL_get_error() would
6321 detect the supposedly ignored error.
6323 Both problems are now fixed.
6326 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6327 (previously it was 1024).
6330 *) Fix for compatibility mode trust settings: ignore trust settings
6331 unless some valid trust or reject settings are present.
6334 *) Fix for blowfish EVP: its a variable length cipher.
6337 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6338 parameters in DSA public key structures and return an error in the
6339 DSA routines if parameters are absent.
6342 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6343 in the current directory if neither $RANDFILE nor $HOME was set.
6344 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6345 caused some confusion to Windows users who haven't defined $HOME.
6346 Thus RAND_file_name() is changed again: e_os.h can define a
6347 DEFAULT_HOME, which will be used if $HOME is not set.
6348 For Windows, we use "C:"; on other platforms, we still require
6349 environment variables.
6351 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6352 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6353 having multiple threads call RAND_poll() concurrently.
6356 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6357 combination of a flag and a thread ID variable.
6358 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6359 flag), *other* threads can enter ssleay_add_bytes without obeying
6360 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6361 that they do not hold after the first thread unsets add_do_not_lock).
6364 *) Change bctest again: '-x' expressions are not available in all
6368 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6370 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6371 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6373 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6374 the default extension for executables, if any. Also, make the perl
6375 scripts that use symlink() to test if it really exists and use "cp"
6376 if it doesn't. All this made OpenSSL compilable and installable in
6380 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6381 If SEQUENCE is length is indefinite just set c->slen to the total
6382 amount of data available.
6383 [Steve Henson, reported by shige@FreeBSD.org]
6384 [This change does not apply to 0.9.7.]
6386 *) Change bctest to avoid here-documents inside command substitution
6387 (workaround for FreeBSD /bin/sh bug).
6388 For compatibility with Ultrix, avoid shell functions (introduced
6389 in the bctest version that searches along $PATH).
6392 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6393 with des_encrypt() defined on some operating systems, like Solaris
6397 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6398 On the Importance of Eliminating Errors in Cryptographic
6399 Computations, J. Cryptology 14 (2001) 2, 101-119,
6400 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6403 *) MIPS assembler BIGNUM division bug fix.
6406 *) Disabled incorrect Alpha assembler code.
6409 *) Fix PKCS#7 decode routines so they correctly update the length
6410 after reading an EOC for the EXPLICIT tag.
6412 [This change does not apply to 0.9.7.]
6414 *) Fix bug in PKCS#12 key generation routines. This was triggered
6415 if a 3DES key was generated with a 0 initial byte. Include
6416 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6417 (but broken) behaviour.
6420 *) Enhance bctest to search for a working bc along $PATH and print
6422 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6424 *) Fix memory leaks in err.c: free err_data string if necessary;
6425 don't write to the wrong index in ERR_set_error_data.
6428 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6432 *) Replace rdtsc with _emit statements for VC++ version 5.
6433 [Jeremy Cooper <jeremy@baymoo.org>]
6435 *) Make it possible to reuse SSLv2 sessions.
6438 *) In copy_email() check for >= 0 as a return value for
6439 X509_NAME_get_index_by_NID() since 0 is a valid index.
6440 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6442 *) Avoid coredump with unsupported or invalid public keys by checking if
6443 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6444 PKCS7_verify() fails with non detached data.
6447 *) Don't use getenv in library functions when run as setuid/setgid.
6448 New function OPENSSL_issetugid().
6451 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6452 due to incorrect handling of multi-threading:
6454 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6456 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6458 3. Count how many times MemCheck_off() has been called so that
6459 nested use can be treated correctly. This also avoids
6460 inband-signalling in the previous code (which relied on the
6461 assumption that thread ID 0 is impossible).
6464 *) Add "-rand" option also to s_client and s_server.
6467 *) Fix CPU detection on Irix 6.x.
6468 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6469 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6471 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6474 [This change does not apply to 0.9.7.]
6476 *) Use the cached encoding of an X509_NAME structure rather than
6477 copying it. This is apparently the reason for the libsafe "errors"
6478 but the code is actually correct.
6481 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6482 Bleichenbacher's DSA attack.
6483 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6484 to be set and top=0 forces the highest bit to be set; top=-1 is new
6485 and leaves the highest bit random.
6486 [Ulf Moeller, Bodo Moeller]
6488 *) In the NCONF_...-based implementations for CONF_... queries
6489 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6490 a temporary CONF structure with the data component set to NULL
6491 (which gives segmentation faults in lh_retrieve).
6492 Instead, use NULL for the CONF pointer in CONF_get_string and
6493 CONF_get_number (which may use environment variables) and directly
6494 return NULL from CONF_get_section.
6497 *) Fix potential buffer overrun for EBCDIC.
6500 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6501 keyUsage if basicConstraints absent for a CA.
6504 *) Make SMIME_write_PKCS7() write mail header values with a format that
6505 is more generally accepted (no spaces before the semicolon), since
6506 some programs can't parse those values properly otherwise. Also make
6507 sure BIO's that break lines after each write do not create invalid
6511 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6512 macros previously used would not encode an empty SEQUENCE OF
6513 and break the signature.
6515 [This change does not apply to 0.9.7.]
6517 *) Zero the premaster secret after deriving the master secret in
6521 *) Add some EVP_add_digest_alias registrations (as found in
6522 OpenSSL_add_all_digests()) to SSL_library_init()
6523 aka OpenSSL_add_ssl_algorithms(). This provides improved
6524 compatibility with peers using X.509 certificates
6525 with unconventional AlgorithmIdentifier OIDs.
6528 *) Fix for Irix with NO_ASM.
6529 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6531 *) ./config script fixes.
6532 [Ulf Moeller, Richard Levitte]
6534 *) Fix 'openssl passwd -1'.
6537 *) Change PKCS12_key_gen_asc() so it can cope with non null
6538 terminated strings whose length is passed in the passlen
6539 parameter, for example from PEM callbacks. This was done
6540 by adding an extra length parameter to asc2uni().
6541 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6543 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6544 call failed, free the DSA structure.
6547 *) Fix to uni2asc() to cope with zero length Unicode strings.
6548 These are present in some PKCS#12 files.
6551 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6552 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6553 when writing a 32767 byte record.
6554 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6556 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6557 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6559 (RSA objects have a reference count access to which is protected
6560 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6561 so they are meant to be shared between threads.)
6562 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6563 "Reddie, Steven" <Steven.Reddie@ca.com>]
6565 *) Fix a deadlock in CRYPTO_mem_leaks().
6568 *) Use better test patterns in bntest.
6571 *) rand_win.c fix for Borland C.
6574 *) BN_rshift bugfix for n == 0.
6577 *) Add a 'bctest' script that checks for some known 'bc' bugs
6578 so that 'make test' does not abort just because 'bc' is broken.
6581 *) Store verify_result within SSL_SESSION also for client side to
6582 avoid potential security hole. (Re-used sessions on the client side
6583 always resulted in verify_result==X509_V_OK, not using the original
6584 result of the server certificate verification.)
6587 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6588 SSL3_RT_APPLICATION_DATA, return 0.
6589 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6593 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6594 releases, have been re-implemented by renaming the previous
6595 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6596 and ssl3_read_internal, respectively, and adding 'peek' parameters
6597 to them. The new ssl[23]_{read,peek} functions are calls to
6598 ssl[23]_read_internal with the 'peek' flag set appropriately.
6599 A 'peek' parameter has also been added to ssl3_read_bytes, which
6600 does the actual work for ssl3_read_internal.
6603 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6604 the method-specific "init()" handler. Also clean up ex_data after
6605 calling the method-specific "finish()" handler. Previously, this was
6606 happening the other way round.
6609 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6610 The previous value, 12, was not always sufficient for BN_mod_exp().
6613 *) Make sure that shared libraries get the internal name engine with
6614 the full version number and not just 0. This should mark the
6615 shared libraries as not backward compatible. Of course, this should
6616 be changed again when we can guarantee backward binary compatibility.
6619 *) Fix typo in get_cert_by_subject() in by_dir.c
6620 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6622 *) Rework the system to generate shared libraries:
6624 - Make note of the expected extension for the shared libraries and
6625 if there is a need for symbolic links from for example libcrypto.so.0
6626 to libcrypto.so.0.9.7. There is extended info in Configure for
6629 - Make as few rebuilds of the shared libraries as possible.
6631 - Still avoid linking the OpenSSL programs with the shared libraries.
6633 - When installing, install the shared libraries separately from the
6637 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6639 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6640 and not in SSL_clear because the latter is also used by the
6641 accept/connect functions; previously, the settings made by
6642 SSL_set_read_ahead would be lost during the handshake.
6643 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6645 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6646 Previously, it would create entries for disableed algorithms no
6650 *) Added several new manual pages for SSL_* function.
6653 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6655 *) In ssl23_get_client_hello, generate an error message when faced
6656 with an initial SSL 3.0/TLS record that is too small to contain the
6657 first two bytes of the ClientHello message, i.e. client_version.
6658 (Note that this is a pathologic case that probably has never happened
6659 in real life.) The previous approach was to use the version number
6660 from the record header as a substitute; but our protocol choice
6661 should not depend on that one because it is not authenticated
6662 by the Finished messages.
6665 *) More robust randomness gathering functions for Windows.
6666 [Jeffrey Altman <jaltman@columbia.edu>]
6668 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6669 not set then we don't setup the error code for issuer check errors
6670 to avoid possibly overwriting other errors which the callback does
6671 handle. If an application does set the flag then we assume it knows
6672 what it is doing and can handle the new informational codes
6676 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6677 a general "ANY" type, as such it should be able to decode anything
6678 including tagged types. However it didn't check the class so it would
6679 wrongly interpret tagged types in the same way as their universal
6680 counterpart and unknown types were just rejected. Changed so that the
6681 tagged and unknown types are handled in the same way as a SEQUENCE:
6682 that is the encoding is stored intact. There is also a new type
6683 "V_ASN1_OTHER" which is used when the class is not universal, in this
6684 case we have no idea what the actual type is so we just lump them all
6688 *) On VMS, stdout may very well lead to a file that is written to
6689 in a record-oriented fashion. That means that every write() will
6690 write a separate record, which will be read separately by the
6691 programs trying to read from it. This can be very confusing.
6693 The solution is to put a BIO filter in the way that will buffer
6694 text until a linefeed is reached, and then write everything a
6695 line at a time, so every record written will be an actual line,
6696 not chunks of lines and not (usually doesn't happen, but I've
6697 seen it once) several lines in one record. BIO_f_linebuffer() is
6700 Currently, it's a VMS-only method, because that's where it has
6701 been tested well enough.
6704 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6705 it can return incorrect results.
6706 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6707 but it was in 0.9.6-beta[12].)
6710 *) Disable the check for content being present when verifying detached
6711 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6712 include zero length content when signing messages.
6715 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6716 BIO_ctrl (for BIO pairs).
6719 *) Add DSO method for VMS.
6722 *) Bug fix: Montgomery multiplication could produce results with the
6726 *) Add RPM specification openssl.spec and modify it to build three
6727 packages. The default package contains applications, application
6728 documentation and run-time libraries. The devel package contains
6729 include files, static libraries and function documentation. The
6730 doc package contains the contents of the doc directory. The original
6731 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6734 *) Add a large number of documentation files for many SSL routines.
6735 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6737 *) Add a configuration entry for Sony News 4.
6738 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6740 *) Don't set the two most significant bits to one when generating a
6741 random number < q in the DSA library.
6744 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6745 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6746 the underlying transport is blocking) if a handshake took place.
6747 (The default behaviour is needed by applications such as s_client
6748 and s_server that use select() to determine when to use SSL_read;
6749 but for applications that know in advance when to expect data, it
6750 just makes things more complicated.)
6753 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6757 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6758 work better on such systems.
6759 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6761 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6762 Update PKCS12_parse() so it copies the friendlyName and the
6763 keyid to the certificates aux info.
6766 *) Fix bug in PKCS7_verify() which caused an infinite loop
6767 if there was more than one signature.
6768 [Sven Uszpelkat <su@celocom.de>]
6770 *) Major change in util/mkdef.pl to include extra information
6771 about each symbol, as well as presentig variables as well
6772 as functions. This change means that there's n more need
6773 to rebuild the .num files when some algorithms are excluded.
6776 *) Allow the verify time to be set by an application,
6777 rather than always using the current time.
6780 *) Phase 2 verify code reorganisation. The certificate
6781 verify code now looks up an issuer certificate by a
6782 number of criteria: subject name, authority key id
6783 and key usage. It also verifies self signed certificates
6784 by the same criteria. The main comparison function is
6785 X509_check_issued() which performs these checks.
6787 Lot of changes were necessary in order to support this
6788 without completely rewriting the lookup code.
6790 Authority and subject key identifier are now cached.
6792 The LHASH 'certs' is X509_STORE has now been replaced
6793 by a STACK_OF(X509_OBJECT). This is mainly because an
6794 LHASH can't store or retrieve multiple objects with
6795 the same hash value.
6797 As a result various functions (which were all internal
6798 use only) have changed to handle the new X509_STORE
6799 structure. This will break anything that messed round
6800 with X509_STORE internally.
6802 The functions X509_STORE_add_cert() now checks for an
6803 exact match, rather than just subject name.
6805 The X509_STORE API doesn't directly support the retrieval
6806 of multiple certificates matching a given criteria, however
6807 this can be worked round by performing a lookup first
6808 (which will fill the cache with candidate certificates)
6809 and then examining the cache for matches. This is probably
6810 the best we can do without throwing out X509_LOOKUP
6811 entirely (maybe later...).
6813 The X509_VERIFY_CTX structure has been enhanced considerably.
6815 All certificate lookup operations now go via a get_issuer()
6816 callback. Although this currently uses an X509_STORE it
6817 can be replaced by custom lookups. This is a simple way
6818 to bypass the X509_STORE hackery necessary to make this
6819 work and makes it possible to use more efficient techniques
6820 in future. A very simple version which uses a simple
6821 STACK for its trusted certificate store is also provided
6822 using X509_STORE_CTX_trusted_stack().
6824 The verify_cb() and verify() callbacks now have equivalents
6825 in the X509_STORE_CTX structure.
6827 X509_STORE_CTX also has a 'flags' field which can be used
6828 to customise the verify behaviour.
6831 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6832 excludes S/MIME capabilities.
6835 *) When a certificate request is read in keep a copy of the
6836 original encoding of the signed data and use it when outputing
6837 again. Signatures then use the original encoding rather than
6838 a decoded, encoded version which may cause problems if the
6839 request is improperly encoded.
6842 *) For consistency with other BIO_puts implementations, call
6843 buffer_write(b, ...) directly in buffer_puts instead of calling
6846 In BIO_puts, increment b->num_write as in BIO_write.
6847 [Peter.Sylvester@EdelWeb.fr]
6849 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6850 BN_zero, we may not return a BIGNUM with an array consisting of
6854 *) Avoid calling abort() from within the library when problems are
6855 detected, except if preprocessor symbols have been defined
6856 (such as REF_CHECK, BN_DEBUG etc.).
6859 *) New openssl application 'rsautl'. This utility can be
6860 used for low level RSA operations. DER public key
6861 BIO/fp routines also added.
6864 *) New Configure entry and patches for compiling on QNX 4.
6865 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6867 *) A demo state-machine implementation was sponsored by
6868 Nuron (http://www.nuron.com/) and is now available in
6869 demos/state_machine.
6872 *) New options added to the 'dgst' utility for signature
6873 generation and verification.
6876 *) Unrecognized PKCS#7 content types are now handled via a
6877 catch all ASN1_TYPE structure. This allows unsupported
6878 types to be stored as a "blob" and an application can
6879 encode and decode it manually.
6882 *) Fix various signed/unsigned issues to make a_strex.c
6884 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6886 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6887 length if passed a buffer. ASN1_INTEGER_to_BN failed
6888 if passed a NULL BN and its argument was negative.
6889 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6891 *) Modification to PKCS#7 encoding routines to output definite
6892 length encoding. Since currently the whole structures are in
6893 memory there's not real point in using indefinite length
6894 constructed encoding. However if OpenSSL is compiled with
6895 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6898 *) Added BIO_vprintf() and BIO_vsnprintf().
6901 *) Added more prefixes to parse for in the the strings written
6902 through a logging bio, to cover all the levels that are available
6903 through syslog. The prefixes are now:
6905 PANIC, EMERG, EMR => LOG_EMERG
6906 ALERT, ALR => LOG_ALERT
6907 CRIT, CRI => LOG_CRIT
6908 ERROR, ERR => LOG_ERR
6909 WARNING, WARN, WAR => LOG_WARNING
6910 NOTICE, NOTE, NOT => LOG_NOTICE
6911 INFO, INF => LOG_INFO
6912 DEBUG, DBG => LOG_DEBUG
6914 and as before, if none of those prefixes are present at the
6915 beginning of the string, LOG_ERR is chosen.
6917 On Win32, the LOG_* levels are mapped according to this:
6919 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6920 LOG_WARNING => EVENTLOG_WARNING_TYPE
6921 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6925 *) Made it possible to reconfigure with just the configuration
6926 argument "reconf" or "reconfigure". The command line arguments
6927 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6928 and are retrieved from there when reconfiguring.
6932 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6934 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6937 *) The obj_dat.pl script was messing up the sorting of object
6938 names. The reason was that it compared the quoted version
6939 of strings as a result "OCSP" > "OCSP Signing" because
6940 " > SPACE. Changed script to store unquoted versions of
6941 names and add quotes on output. It was also omitting some
6942 names from the lookup table if they were given a default
6943 value (that is if SN is missing it is given the same
6944 value as LN and vice versa), these are now added on the
6945 grounds that if an object has a name we should be able to
6946 look it up. Finally added warning output when duplicate
6947 short or long names are found.
6950 *) Changes needed for Tandem NSK.
6951 [Scott Uroff <scott@xypro.com>]
6953 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6954 RSA_padding_check_SSLv23(), special padding was never detected
6955 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6956 version rollback attacks was not effective.
6958 In s23_clnt.c, don't use special rollback-attack detection padding
6959 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6960 client; similarly, in s23_srvr.c, don't do the rollback check if
6961 SSL 2.0 is the only protocol enabled in the server.
6964 *) Make it possible to get hexdumps of unprintable data with 'openssl
6965 asn1parse'. By implication, the functions ASN1_parse_dump() and
6966 BIO_dump_indent() are added.
6969 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6970 these print out strings and name structures based on various
6971 flags including RFC2253 support and proper handling of
6972 multibyte characters. Added options to the 'x509' utility
6973 to allow the various flags to be set.
6976 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6977 Also change the functions X509_cmp_current_time() and
6978 X509_gmtime_adj() work with an ASN1_TIME structure,
6979 this will enable certificates using GeneralizedTime in validity
6980 dates to be checked.
6983 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6984 negative public key encodings) on by default,
6985 NO_NEG_PUBKEY_BUG can be set to disable it.
6988 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6989 content octets. An i2c_ASN1_OBJECT is unnecessary because
6990 the encoding can be trivially obtained from the structure.
6993 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6994 not read locks (CRYPTO_r_[un]lock).
6997 *) A first attempt at creating official support for shared
6998 libraries through configuration. I've kept it so the
6999 default is static libraries only, and the OpenSSL programs
7000 are always statically linked for now, but there are
7001 preparations for dynamic linking in place.
7002 This has been tested on Linux and Tru64.
7005 *) Randomness polling function for Win9x, as described in:
7006 Peter Gutmann, Software Generation of Practically Strong
7010 *) Fix so PRNG is seeded in req if using an already existing
7014 *) New options to smime application. -inform and -outform
7015 allow alternative formats for the S/MIME message including
7016 PEM and DER. The -content option allows the content to be
7017 specified separately. This should allow things like Netscape
7018 form signing output easier to verify.
7021 *) Fix the ASN1 encoding of tags using the 'long form'.
7024 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7025 STRING types. These convert content octets to and from the
7026 underlying type. The actual tag and length octets are
7027 already assumed to have been read in and checked. These
7028 are needed because all other string types have virtually
7029 identical handling apart from the tag. By having versions
7030 of the ASN1 functions that just operate on content octets
7031 IMPLICIT tagging can be handled properly. It also allows
7032 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7033 and ASN1_INTEGER are identical apart from the tag.
7036 *) Change the handling of OID objects as follows:
7038 - New object identifiers are inserted in objects.txt, following
7039 the syntax given in objects.README.
7040 - objects.pl is used to process obj_mac.num and create a new
7042 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7045 This is currently kind of a hack, and the perl code in objects.pl
7046 isn't very elegant, but it works as I intended. The simplest way
7047 to check that it worked correctly is to look in obj_dat.h and
7048 check the array nid_objs and make sure the objects haven't moved
7049 around (this is important!). Additions are OK, as well as
7050 consistent name changes.
7053 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7056 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7057 The given file adds to whatever has already been seeded into the
7058 random pool through the RANDFILE configuration file option or
7059 environment variable, or the default random state file.
7062 *) mkstack.pl now sorts each macro group into lexical order.
7063 Previously the output order depended on the order the files
7064 appeared in the directory, resulting in needless rewriting
7068 *) Patches to make OpenSSL compile under Win32 again. Mostly
7069 work arounds for the VC++ problem that it treats func() as
7070 func(void). Also stripped out the parts of mkdef.pl that
7071 added extra typesafe functions: these no longer exist.
7074 *) Reorganisation of the stack code. The macros are now all
7075 collected in safestack.h . Each macro is defined in terms of
7076 a "stack macro" of the form SKM_<name>(type, a, b). The
7077 DEBUG_SAFESTACK is now handled in terms of function casts,
7078 this has the advantage of retaining type safety without the
7079 use of additional functions. If DEBUG_SAFESTACK is not defined
7080 then the non typesafe macros are used instead. Also modified the
7081 mkstack.pl script to handle the new form. Needs testing to see
7082 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7083 the default if no major problems. Similar behaviour for ASN1_SET_OF
7084 and PKCS12_STACK_OF.
7087 *) When some versions of IIS use the 'NET' form of private key the
7088 key derivation algorithm is different. Normally MD5(password) is
7089 used as a 128 bit RC4 key. In the modified case
7090 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7091 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7092 as the old Netscape_RSA functions except they have an additional
7093 'sgckey' parameter which uses the modified algorithm. Also added
7094 an -sgckey command line option to the rsa utility. Thanks to
7095 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7096 algorithm to openssl-dev.
7099 *) The evp_local.h macros were using 'c.##kname' which resulted in
7100 invalid expansion on some systems (SCO 5.0.5 for example).
7101 Corrected to 'c.kname'.
7102 [Phillip Porch <root@theporch.com>]
7104 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7105 a STACK of email addresses from a certificate or request, these look
7106 in the subject name and the subject alternative name extensions and
7107 omit any duplicate addresses.
7110 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7111 This makes DSA verification about 2 % faster.
7114 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7115 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7116 plus overhead for 1024 bit moduli).
7117 This makes exponentiations about 0.5 % faster for 1024 bit
7118 exponents (as measured by "openssl speed rsa2048").
7121 *) Rename memory handling macros to avoid conflicts with other
7123 Malloc => OPENSSL_malloc
7124 Malloc_locked => OPENSSL_malloc_locked
7125 Realloc => OPENSSL_realloc
7126 Free => OPENSSL_free
7129 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7130 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7133 *) CygWin32 support.
7134 [John Jarvie <jjarvie@newsguy.com>]
7136 *) The type-safe stack code has been rejigged. It is now only compiled
7137 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7138 by default all type-specific stack functions are "#define"d back to
7139 standard stack functions. This results in more streamlined output
7140 but retains the type-safety checking possibilities of the original
7144 *) The STACK code has been cleaned up, and certain type declarations
7145 that didn't make a lot of sense have been brought in line. This has
7146 also involved a cleanup of sorts in safestack.h to more correctly
7147 map type-safe stack functions onto their plain stack counterparts.
7148 This work has also resulted in a variety of "const"ifications of
7149 lots of the code, especially "_cmp" operations which should normally
7150 be prototyped with "const" parameters anyway.
7153 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7154 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7155 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7156 where all of 'md' is used each time the PRNG is used, but 'state'
7157 is used only indexed by a cyclic counter. As entropy may not be
7158 well distributed from the beginning, 'md' is important as a
7159 chaining variable. However, the output function chains only half
7160 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7161 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7162 in all of 'state' being rewritten, with the new values depending
7163 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7166 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7167 the handshake is continued after ssl_verify_cert_chain();
7168 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7169 can lead to 'unexplainable' connection aborts later.
7170 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7172 *) Major EVP API cipher revision.
7173 Add hooks for extra EVP features. This allows various cipher
7174 parameters to be set in the EVP interface. Support added for variable
7175 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7176 setting of RC2 and RC5 parameters.
7178 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7181 Remove lots of duplicated code from the EVP library. For example *every*
7182 cipher init() function handles the 'iv' in the same way according to the
7183 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7184 for CFB and OFB modes they zero ctx->num.
7186 New functionality allows removal of S/MIME code RC2 hack.
7188 Most of the routines have the same form and so can be declared in terms
7191 By shifting this to the top level EVP_CipherInit() it can be removed from
7192 all individual ciphers. If the cipher wants to handle IVs or keys
7193 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7196 Change lots of functions like EVP_EncryptUpdate() to now return a
7197 value: although software versions of the algorithms cannot fail
7198 any installed hardware versions can.
7201 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7202 this option is set, tolerate broken clients that send the negotiated
7203 protocol version number instead of the requested protocol version
7207 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7208 i.e. non-zero for export ciphersuites, zero otherwise.
7209 Previous versions had this flag inverted, inconsistent with
7210 rsa_tmp_cb (..._TMP_RSA_CB).
7211 [Bodo Moeller; problem reported by Amit Chopra]
7213 *) Add missing DSA library text string. Work around for some IIS
7214 key files with invalid SEQUENCE encoding.
7217 *) Add a document (doc/standards.txt) that list all kinds of standards
7218 and so on that are implemented in OpenSSL.
7221 *) Enhance c_rehash script. Old version would mishandle certificates
7222 with the same subject name hash and wouldn't handle CRLs at all.
7223 Added -fingerprint option to crl utility, to support new c_rehash
7227 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7230 *) Fix for SSL server purpose checking. Server checking was
7231 rejecting certificates which had extended key usage present
7232 but no ssl client purpose.
7233 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7235 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7236 is a little unclear about how a blank password is handled.
7237 Since the password in encoded as a BMPString with terminating
7238 double NULL a zero length password would end up as just the
7239 double NULL. However no password at all is different and is
7240 handled differently in the PKCS#12 key generation code. NS
7241 treats a blank password as zero length. MSIE treats it as no
7242 password on export: but it will try both on import. We now do
7243 the same: PKCS12_parse() tries zero length and no password if
7244 the password is set to "" or NULL (NULL is now a valid password:
7245 it wasn't before) as does the pkcs12 application.
7248 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7249 perror when PEM_read_bio_X509_REQ fails, the error message must
7250 be obtained from the error queue.
7253 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7254 it in ERR_remove_state if appropriate, and change ERR_get_state
7255 accordingly to avoid race conditions (this is necessary because
7256 thread_hash is no longer constant once set).
7259 *) Bugfix for linux-elf makefile.one.
7262 *) RSA_get_default_method() will now cause a default
7263 RSA_METHOD to be chosen if one doesn't exist already.
7264 Previously this was only set during a call to RSA_new()
7265 or RSA_new_method(NULL) meaning it was possible for
7266 RSA_get_default_method() to return NULL.
7269 *) Added native name translation to the existing DSO code
7270 that will convert (if the flag to do so is set) filenames
7271 that are sufficiently small and have no path information
7272 into a canonical native form. Eg. "blah" converted to
7273 "libblah.so" or "blah.dll" etc.
7276 *) New function ERR_error_string_n(e, buf, len) which is like
7277 ERR_error_string(e, buf), but writes at most 'len' bytes
7278 including the 0 terminator. For ERR_error_string_n, 'buf'
7280 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7282 *) CONF library reworked to become more general. A new CONF
7283 configuration file reader "class" is implemented as well as a
7284 new functions (NCONF_*, for "New CONF") to handle it. The now
7285 old CONF_* functions are still there, but are reimplemented to
7286 work in terms of the new functions. Also, a set of functions
7287 to handle the internal storage of the configuration data is
7288 provided to make it easier to write new configuration file
7289 reader "classes" (I can definitely see something reading a
7290 configuration file in XML format, for example), called _CONF_*,
7291 or "the configuration storage API"...
7293 The new configuration file reading functions are:
7295 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7296 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7298 NCONF_default, NCONF_WIN32
7300 NCONF_dump_fp, NCONF_dump_bio
7302 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7303 NCONF_new creates a new CONF object. This works in the same way
7304 as other interfaces in OpenSSL, like the BIO interface.
7305 NCONF_dump_* dump the internal storage of the configuration file,
7306 which is useful for debugging. All other functions take the same
7307 arguments as the old CONF_* functions wth the exception of the
7308 first that must be a `CONF *' instead of a `LHASH *'.
7310 To make it easer to use the new classes with the old CONF_* functions,
7311 the function CONF_set_default_method is provided.
7314 *) Add '-tls1' option to 'openssl ciphers', which was already
7315 mentioned in the documentation but had not been implemented.
7316 (This option is not yet really useful because even the additional
7317 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7320 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7321 OpenSSL-based applications) load shared libraries and bind to
7322 them in a portable way.
7323 [Geoff Thorpe, with contributions from Richard Levitte]
7325 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7327 *) Make sure _lrotl and _lrotr are only used with MSVC.
7329 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7330 (the default implementation of RAND_status).
7332 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7333 to '-clrext' (= clear extensions), as intended and documented.
7334 [Bodo Moeller; inconsistency pointed out by Michael Attili
7337 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7338 was larger than the MD block size.
7339 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7341 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7342 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7343 using the passed key: if the passed key was a private key the result
7344 of X509_print(), for example, would be to print out all the private key
7348 *) des_quad_cksum() byte order bug fix.
7349 [Ulf Möller, using the problem description in krb4-0.9.7, where
7350 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7352 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7354 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7356 *) For easily testing in shell scripts whether some command
7357 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7358 returns with exit code 0 iff no command of the given name is available.
7359 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7360 the output goes to stdout and nothing is printed to stderr.
7361 Additional arguments are always ignored.
7363 Since for each cipher there is a command of the same name,
7364 the 'no-cipher' compilation switches can be tested this way.
7366 ('openssl no-XXX' is not able to detect pseudo-commands such
7367 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7370 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7373 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7374 is set; it will be thrown away anyway because each handshake creates
7376 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7377 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7378 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7379 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7382 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7383 'Q' and 'R' lose their special meanings (quit/renegotiate).
7384 This is part of what -quiet does; unlike -quiet, -ign_eof
7385 does not suppress any output.
7388 *) Add compatibility options to the purpose and trust code. The
7389 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7390 accepts a certificate or CA, this was the previous behaviour,
7391 with all the associated security issues.
7393 X509_TRUST_COMPAT is the old trust behaviour: only and
7394 automatically trust self signed roots in certificate store. A
7395 new trust setting X509_TRUST_DEFAULT is used to specify that
7396 a purpose has no associated trust setting and it should instead
7397 use the value in the default purpose.
7400 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7401 and fix a memory leak.
7404 *) In util/mkerr.pl (which implements 'make errors'), preserve
7405 reason strings from the previous version of the .c file, as
7406 the default to have only downcase letters (and digits) in
7407 automatically generated reasons codes is not always appropriate.
7410 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7411 using strerror. Previously, ERR_reason_error_string() returned
7412 library names as reason strings for SYSerr; but SYSerr is a special
7413 case where small numbers are errno values, not library numbers.
7416 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7417 converts DSA parameters into DH parameters. (When creating parameters,
7418 DSA_generate_parameters is used.)
7421 *) Include 'length' (recommended exponent length) in C code generated
7422 by 'openssl dhparam -C'.
7425 *) The second argument to set_label in perlasm was already being used
7426 so couldn't be used as a "file scope" flag. Moved to third argument
7430 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7431 instead of RAND_bytes for encryption IVs and salts.
7434 *) Include RAND_status() into RAND_METHOD instead of implementing
7435 it only for md_rand.c Otherwise replacing the PRNG by calling
7436 RAND_set_rand_method would be impossible.
7439 *) Don't let DSA_generate_key() enter an infinite loop if the random
7440 number generation fails.
7443 *) New 'rand' application for creating pseudo-random output.
7446 *) Added configuration support for Linux/IA64
7447 [Rolf Haberrecker <rolf@suse.de>]
7449 *) Assembler module support for Mingw32.
7452 *) Shared library support for HPUX (in shlib/).
7453 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7455 *) Shared library support for Solaris gcc.
7456 [Lutz Behnke <behnke@trustcenter.de>]
7458 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7460 *) PKCS7_encrypt() was adding text MIME headers twice because they
7461 were added manually and by SMIME_crlf_copy().
7464 *) In bntest.c don't call BN_rand with zero bits argument.
7465 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7467 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7468 case was implemented. This caused BN_div_recp() to fail occasionally.
7471 *) Add an optional second argument to the set_label() in the perl
7472 assembly language builder. If this argument exists and is set
7473 to 1 it signals that the assembler should use a symbol whose
7474 scope is the entire file, not just the current function. This
7475 is needed with MASM which uses the format label:: for this scope.
7476 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7478 *) Change the ASN1 types so they are typedefs by default. Before
7479 almost all types were #define'd to ASN1_STRING which was causing
7480 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7484 *) Change names of new functions to the new get1/get0 naming
7485 convention: After 'get1', the caller owns a reference count
7486 and has to call ..._free; 'get0' returns a pointer to some
7487 data structure without incrementing reference counters.
7488 (Some of the existing 'get' functions increment a reference
7489 counter, some don't.)
7490 Similarly, 'set1' and 'add1' functions increase reference
7491 counters or duplicate objects.
7494 *) Allow for the possibility of temp RSA key generation failure:
7495 the code used to assume it always worked and crashed on failure.
7498 *) Fix potential buffer overrun problem in BIO_printf().
7499 [Ulf Möller, using public domain code by Patrick Powell; problem
7500 pointed out by David Sacerdote <das33@cornell.edu>]
7502 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7503 RAND_egd() and RAND_status(). In the command line application,
7504 the EGD socket can be specified like a seed file using RANDFILE
7508 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7509 Some CAs (e.g. Verisign) distribute certificates in this form.
7512 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7513 list to exclude them. This means that no special compilation option
7514 is needed to use anonymous DH: it just needs to be included in the
7518 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7519 EVP_MD_type. The old functionality is available in a new macro called
7520 EVP_MD_md(). Change code that uses it and update docs.
7523 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7524 where the 'void *' argument is replaced by a function pointer argument.
7525 Previously 'void *' was abused to point to functions, which works on
7526 many platforms, but is not correct. As these functions are usually
7527 called by macros defined in OpenSSL header files, most source code
7528 should work without changes.
7531 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7532 sections with information on -D... compiler switches used for
7533 compiling the library so that applications can see them. To enable
7534 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7535 must be defined. E.g.,
7536 #define OPENSSL_ALGORITHM_DEFINES
7537 #include <openssl/opensslconf.h>
7538 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7539 [Richard Levitte, Ulf and Bodo Möller]
7541 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7545 *) Change the 'other' type in certificate aux info to a STACK_OF
7546 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7547 the required ASN1 format: arbitrary types determined by an OID.
7550 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7551 argument to 'req'. This is not because the function is newer or
7552 better than others it just uses the work 'NEW' in the certificate
7553 request header lines. Some software needs this.
7556 *) Reorganise password command line arguments: now passwords can be
7557 obtained from various sources. Delete the PEM_cb function and make
7558 it the default behaviour: i.e. if the callback is NULL and the
7559 usrdata argument is not NULL interpret it as a null terminated pass
7560 phrase. If usrdata and the callback are NULL then the pass phrase
7561 is prompted for as usual.
7564 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7565 the support is automatically enabled. The resulting binaries will
7566 autodetect the card and use it if present.
7567 [Ben Laurie and Compaq Inc.]
7569 *) Work around for Netscape hang bug. This sends certificate request
7570 and server done in one record. Since this is perfectly legal in the
7571 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7572 the bugs/SSLv3 entry for more info.
7575 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7578 *) Add -rand argument to smime and pkcs12 applications and read/write
7582 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7585 *) Add command line password options to the remaining applications.
7588 *) Bug fix for BN_div_recp() for numerators with an even number of
7592 *) More tests in bntest.c, and changed test_bn output.
7595 *) ./config recognizes MacOS X now.
7598 *) Bug fix for BN_div() when the first words of num and divsor are
7599 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7602 *) Add support for various broken PKCS#8 formats, and command line
7603 options to produce them.
7606 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7607 get temporary BIGNUMs from a BN_CTX.
7610 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7614 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7615 include a #define from the old name to the new. The original intent
7616 was that statically linked binaries could for example just call
7617 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7618 link with digests. This never worked becayse SSLeay_add_all_digests()
7619 and SSLeay_add_all_ciphers() were in the same source file so calling
7620 one would link with the other. They are now in separate source files.
7623 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7626 *) Use a less unusual form of the Miller-Rabin primality test (it used
7627 a binary algorithm for exponentiation integrated into the Miller-Rabin
7628 loop, our standard modexp algorithms are faster).
7631 *) Support for the EBCDIC character set completed.
7632 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7634 *) Source code cleanups: use const where appropriate, eliminate casts,
7635 use void * instead of char * in lhash.
7638 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7639 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7640 this the server could overwrite ephemeral keys that the client
7644 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7645 using 50 iterations of the Rabin-Miller test.
7647 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7648 iterations of the Rabin-Miller test as required by the appendix
7649 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7650 As BN_is_prime_fasttest includes trial division, DSA parameter
7651 generation becomes much faster.
7653 This implies a change for the callback functions in DSA_is_prime
7654 and DSA_generate_parameters: The callback function is called once
7655 for each positive witness in the Rabin-Miller test, not just
7656 occasionally in the inner loop; and the parameters to the
7657 callback function now provide an iteration count for the outer
7658 loop rather than for the current invocation of the inner loop.
7659 DSA_generate_parameters additionally can call the callback
7660 function with an 'iteration count' of -1, meaning that a
7661 candidate has passed the trial division test (when q is generated
7662 from an application-provided seed, trial division is skipped).
7665 *) New function BN_is_prime_fasttest that optionally does trial
7666 division before starting the Rabin-Miller test and has
7667 an additional BN_CTX * argument (whereas BN_is_prime always
7668 has to allocate at least one BN_CTX).
7669 'callback(1, -1, cb_arg)' is called when a number has passed the
7670 trial division stage.
7673 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7677 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7680 *) New function BN_pseudo_rand().
7683 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7684 bignum version of BN_from_montgomery() with the working code from
7685 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7689 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7690 made it impossible to use the same SSL_SESSION data structure in
7691 SSL2 clients in multiple threads.
7694 *) The return value of RAND_load_file() no longer counts bytes obtained
7695 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7696 to seed the PRNG (previously an explicit byte count was required).
7697 [Ulf Möller, Bodo Möller]
7699 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7700 used (char *) instead of (void *) and had casts all over the place.
7703 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7706 *) Retain source code compatibility for BN_prime_checks macro:
7707 BN_is_prime(..., BN_prime_checks, ...) now uses
7708 BN_prime_checks_for_size to determine the appropriate number of
7709 Rabin-Miller iterations.
7712 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7713 DH_CHECK_P_NOT_SAFE_PRIME.
7714 (Check if this is true? OpenPGP calls them "strong".)
7717 *) Merge the functionality of "dh" and "gendh" programs into a new program
7718 "dhparam". The old programs are retained for now but will handle DH keys
7719 (instead of parameters) in future.
7722 *) Make the ciphers, s_server and s_client programs check the return values
7723 when a new cipher list is set.
7726 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7727 ciphers. Before when the 56bit ciphers were enabled the sorting was
7730 The syntax for the cipher sorting has been extended to support sorting by
7731 cipher-strength (using the strength_bits hard coded in the tables).
7732 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7734 Fix a bug in the cipher-command parser: when supplying a cipher command
7735 string with an "undefined" symbol (neither command nor alphanumeric
7736 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7737 an error is flagged.
7739 Due to the strength-sorting extension, the code of the
7740 ssl_create_cipher_list() function was completely rearranged. I hope that
7741 the readability was also increased :-)
7742 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7744 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7745 for the first serial number and places 2 in the serial number file. This
7746 avoids problems when the root CA is created with serial number zero and
7747 the first user certificate has the same issuer name and serial number
7751 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7752 the new code. Add documentation for this stuff.
7755 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7756 X509_*() to X509at_*() on the grounds that they don't handle X509
7757 structures and behave in an analagous way to the X509v3 functions:
7758 they shouldn't be called directly but wrapper functions should be used
7761 So we also now have some wrapper functions that call the X509at functions
7762 when passed certificate requests. (TO DO: similar things can be done with
7763 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7764 things. Some of these need some d2i or i2d and print functionality
7765 because they handle more complex structures.)
7768 *) Add missing #ifndefs that caused missing symbols when building libssl
7769 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7770 NO_RSA in ssl/s2*.c.
7771 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7773 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7774 has a return value which indicates the quality of the random data
7775 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7776 error queue. New function RAND_pseudo_bytes() generates output that is
7777 guaranteed to be unique but not unpredictable. RAND_add is like
7778 RAND_seed, but takes an extra argument for an entropy estimate
7779 (RAND_seed always assumes full entropy).
7782 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7783 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7784 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7785 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7786 false-positive rate of at most 2^-80 for random input.
7789 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7792 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7793 in the 0.9.5 release), this returns the chain
7794 from an X509_CTX structure with a dup of the stack and all
7795 the X509 reference counts upped: so the stack will exist
7796 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7799 Also make SSL_SESSION_print() print out the verify return
7803 *) Add manpage for the pkcs12 command. Also change the default
7804 behaviour so MAC iteration counts are used unless the new
7805 -nomaciter option is used. This improves file security and
7806 only older versions of MSIE (4.0 for example) need it.
7809 *) Honor the no-xxx Configure options when creating .DEF files.
7812 *) Add PKCS#10 attributes to field table: challengePassword,
7813 unstructuredName and unstructuredAddress. These are taken from
7814 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7815 international characters are used.
7817 More changes to X509_ATTRIBUTE code: allow the setting of types
7818 based on strings. Remove the 'loc' parameter when adding
7819 attributes because these will be a SET OF encoding which is sorted
7823 *) Initial changes to the 'req' utility to allow request generation
7824 automation. This will allow an application to just generate a template
7825 file containing all the field values and have req construct the
7828 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7829 used all over the place including certificate requests and PKCS#7
7830 structures. They are currently handled manually where necessary with
7831 some primitive wrappers for PKCS#7. The new functions behave in a
7832 manner analogous to the X509 extension functions: they allow
7833 attributes to be looked up by NID and added.
7835 Later something similar to the X509V3 code would be desirable to
7836 automatically handle the encoding, decoding and printing of the
7837 more complex types. The string types like challengePassword can
7838 be handled by the string table functions.
7840 Also modified the multi byte string table handling. Now there is
7841 a 'global mask' which masks out certain types. The table itself
7842 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7843 is useful when for example there is only one permissible type
7844 (as in countryName) and using the mask might result in no valid
7848 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7849 SSL_get_peer_finished to allow applications to obtain the latest
7850 Finished messages sent to the peer or expected from the peer,
7851 respectively. (SSL_get_peer_finished is usually the Finished message
7852 actually received from the peer, otherwise the protocol will be aborted.)
7854 As the Finished message are message digests of the complete handshake
7855 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7856 be used for external authentication procedures when the authentication
7857 provided by SSL/TLS is not desired or is not enough.
7860 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7861 the host supports BWX extension and if Compaq C is present on the
7862 $PATH. Just exploiting of the BWX extension results in 20-30%
7863 performance kick for some algorithms, e.g. DES and RC4 to mention
7864 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7868 *) Add support for MS "fast SGC". This is arguably a violation of the
7869 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7870 weak crypto and after checking the certificate is SGC a second one
7871 with strong crypto. MS SGC stops the first handshake after receiving
7872 the server certificate message and sends a second client hello. Since
7873 a server will typically do all the time consuming operations before
7874 expecting any further messages from the client (server key exchange
7875 is the most expensive) there is little difference between the two.
7877 To get OpenSSL to support MS SGC we have to permit a second client
7878 hello message after we have sent server done. In addition we have to
7879 reset the MAC if we do get this second client hello.
7882 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7883 if a DER encoded private key is RSA or DSA traditional format. Changed
7884 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7885 format DER encoded private key. Newer code should use PKCS#8 format which
7886 has the key type encoded in the ASN1 structure. Added DER private key
7887 support to pkcs8 application.
7890 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7891 ciphersuites has been selected (as required by the SSL 3/TLS 1
7892 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7893 is set, we interpret this as a request to violate the specification
7894 (the worst that can happen is a handshake failure, and 'correct'
7895 behaviour would result in a handshake failure anyway).
7898 *) In SSL_CTX_add_session, take into account that there might be multiple
7899 SSL_SESSION structures with the same session ID (e.g. when two threads
7900 concurrently obtain them from an external cache).
7901 The internal cache can handle only one SSL_SESSION with a given ID,
7902 so if there's a conflict, we now throw out the old one to achieve
7906 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7907 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7908 some routines that use cipher OIDs: some ciphers do not have OIDs
7909 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7913 *) Simplify the trust setting structure and code. Now we just have
7914 two sequences of OIDs for trusted and rejected settings. These will
7915 typically have values the same as the extended key usage extension
7916 and any application specific purposes.
7918 The trust checking code now has a default behaviour: it will just
7919 check for an object with the same NID as the passed id. Functions can
7920 be provided to override either the default behaviour or the behaviour
7921 for a given id. SSL client, server and email already have functions
7922 in place for compatibility: they check the NID and also return "trusted"
7923 if the certificate is self signed.
7926 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7927 traditional format into an EVP_PKEY structure.
7930 *) Add a password callback function PEM_cb() which either prompts for
7931 a password if usr_data is NULL or otherwise assumes it is a null
7932 terminated password. Allow passwords to be passed on command line
7933 environment or config files in a few more utilities.
7936 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7937 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7938 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7939 Update documentation.
7942 *) Support for ASN1 "NULL" type. This could be handled before by using
7943 ASN1_TYPE but there wasn't any function that would try to read a NULL
7944 and produce an error if it couldn't. For compatibility we also have
7945 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7946 don't allocate anything because they don't need to.
7949 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7951 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7953 *) Rebuild of the memory allocation routines used by OpenSSL code and
7954 possibly others as well. The purpose is to make an interface that
7955 provide hooks so anyone can build a separate set of allocation and
7956 deallocation routines to be used by OpenSSL, for example memory
7957 pool implementations, or something else, which was previously hard
7958 since Malloc(), Realloc() and Free() were defined as macros having
7959 the values malloc, realloc and free, respectively (except for Win32
7960 compilations). The same is provided for memory debugging code.
7961 OpenSSL already comes with functionality to find memory leaks, but
7962 this gives people a chance to debug other memory problems.
7964 With these changes, a new set of functions and macros have appeared:
7966 CRYPTO_set_mem_debug_functions() [F]
7967 CRYPTO_get_mem_debug_functions() [F]
7968 CRYPTO_dbg_set_options() [F]
7969 CRYPTO_dbg_get_options() [F]
7970 CRYPTO_malloc_debug_init() [M]
7972 The memory debug functions are NULL by default, unless the library
7973 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7974 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7975 gives the standard debugging functions that come with OpenSSL) or
7976 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7977 provided by the library user) must be used. When the standard
7978 debugging functions are used, CRYPTO_dbg_set_options can be used to
7979 request additional information:
7980 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7981 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7983 Also, things like CRYPTO_set_mem_functions will always give the
7984 expected result (the new set of functions is used for allocation
7985 and deallocation) at all times, regardless of platform and compiler
7988 To finish it up, some functions that were never use in any other
7989 way than through macros have a new API and new semantic:
7992 CRYPTO_dbg_realloc()
7995 All macros of value have retained their old syntax.
7996 [Richard Levitte and Bodo Moeller]
7998 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7999 ordering of SMIMECapabilities wasn't in "strength order" and there
8000 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8004 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8005 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8006 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8008 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8009 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8010 functionality to handle multipart/signed properly) and a utility
8011 called 'smime' to call all this stuff. This is based on code I
8012 originally wrote for Celo who have kindly allowed it to be
8013 included in OpenSSL.
8016 *) Add variants des_set_key_checked and des_set_key_unchecked of
8017 des_set_key (aka des_key_sched). Global variable des_check_key
8018 decides which of these is called by des_set_key; this way
8019 des_check_key behaves as it always did, but applications and
8020 the library itself, which was buggy for des_check_key == 1,
8021 have a cleaner way to pick the version they need.
8024 *) New function PKCS12_newpass() which changes the password of a
8028 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8029 dynamic mix. In both cases the ids can be used as an index into the
8030 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8031 functions so they accept a list of the field values and the
8032 application doesn't need to directly manipulate the X509_TRUST
8036 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8040 *) Modify the way the V3 extension code looks up extensions. This now
8041 works in a similar way to the object code: we have some "standard"
8042 extensions in a static table which is searched with OBJ_bsearch()
8043 and the application can add dynamic ones if needed. The file
8044 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8045 updated whenever a new extension is added to the core code and kept
8046 in ext_nid order. There is a simple program 'tabtest.c' which checks
8047 this. New extensions are not added too often so this file can readily
8048 be maintained manually.
8050 There are two big advantages in doing things this way. The extensions
8051 can be looked up immediately and no longer need to be "added" using
8052 X509V3_add_standard_extensions(): this function now does nothing.
8053 [Side note: I get *lots* of email saying the extension code doesn't
8054 work because people forget to call this function]
8055 Also no dynamic allocation is done unless new extensions are added:
8056 so if we don't add custom extensions there is no need to call
8057 X509V3_EXT_cleanup().
8060 *) Modify enc utility's salting as follows: make salting the default. Add a
8061 magic header, so unsalted files fail gracefully instead of just decrypting
8062 to garbage. This is because not salting is a big security hole, so people
8063 should be discouraged from doing it.
8066 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8067 digest to be passed on the command line but it only used this
8068 parameter when signing a certificate. Modified so all relevant
8069 operations are affected by the digest parameter including the
8070 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8071 DSA key was used because it didn't fix the digest.
8074 *) Initial certificate chain verify code. Currently tests the untrusted
8075 certificates for consistency with the verify purpose (which is set
8076 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8078 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8079 this is because it will reject chains with invalid extensions whereas
8080 every previous version of OpenSSL and SSLeay made no checks at all.
8082 Trust code: checks the root CA for the relevant trust settings. Trust
8083 settings have an initial value consistent with the verify purpose: e.g.
8084 if the verify purpose is for SSL client use it expects the CA to be
8085 trusted for SSL client use. However the default value can be changed to
8086 permit custom trust settings: one example of this would be to only trust
8087 certificates from a specific "secure" set of CAs.
8089 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8090 which should be used for version portability: especially since the
8091 verify structure is likely to change more often now.
8093 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8094 to set them. If not set then assume SSL clients will verify SSL servers
8097 Two new options to the verify program: -untrusted allows a set of
8098 untrusted certificates to be passed in and -purpose which sets the
8099 intended purpose of the certificate. If a purpose is set then the
8100 new chain verify code is used to check extension consistency.
8103 *) Support for the authority information access extension.
8106 *) Modify RSA and DSA PEM read routines to transparently handle
8107 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8108 public keys in a format compatible with certificate
8109 SubjectPublicKeyInfo structures. Unfortunately there were already
8110 functions called *_PublicKey_* which used various odd formats so
8111 these are retained for compatibility: however the DSA variants were
8112 never in a public release so they have been deleted. Changed dsa/rsa
8113 utilities to handle the new format: note no releases ever handled public
8114 keys so we should be OK.
8116 The primary motivation for this change is to avoid the same fiasco
8117 that dogs private keys: there are several incompatible private key
8118 formats some of which are standard and some OpenSSL specific and
8119 require various evil hacks to allow partial transparent handling and
8120 even then it doesn't work with DER formats. Given the option anything
8121 other than PKCS#8 should be dumped: but the other formats have to
8122 stay in the name of compatibility.
8124 With public keys and the benefit of hindsight one standard format
8125 is used which works with EVP_PKEY, RSA or DSA structures: though
8126 it clearly returns an error if you try to read the wrong kind of key.
8128 Added a -pubkey option to the 'x509' utility to output the public key.
8129 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8130 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8131 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8132 that do the same as the EVP_PKEY_assign_*() except they up the
8133 reference count of the added key (they don't "swallow" the
8137 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8138 CRLs would fail if the file contained no certificates or no CRLs:
8139 added a new function to read in both types and return the number
8140 read: this means that if none are read it will be an error. The
8141 DER versions of the certificate and CRL reader would always fail
8142 because it isn't possible to mix certificates and CRLs in DER format
8143 without choking one or the other routine. Changed this to just read
8144 a certificate: this is the best we can do. Also modified the code
8145 in apps/verify.c to take notice of return codes: it was previously
8146 attempting to read in certificates from NULL pointers and ignoring
8147 any errors: this is one reason why the cert and CRL reader seemed
8148 to work. It doesn't check return codes from the default certificate
8149 routines: these may well fail if the certificates aren't installed.
8152 *) Code to support otherName option in GeneralName.
8155 *) First update to verify code. Change the verify utility
8156 so it warns if it is passed a self signed certificate:
8157 for consistency with the normal behaviour. X509_verify
8158 has been modified to it will now verify a self signed
8159 certificate if *exactly* the same certificate appears
8160 in the store: it was previously impossible to trust a
8161 single self signed certificate. This means that:
8162 openssl verify ss.pem
8163 now gives a warning about a self signed certificate but
8164 openssl verify -CAfile ss.pem ss.pem
8168 *) For servers, store verify_result in SSL_SESSION data structure
8169 (and add it to external session representation).
8170 This is needed when client certificate verifications fails,
8171 but an application-provided verification callback (set by
8172 SSL_CTX_set_cert_verify_callback) allows accepting the session
8173 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8174 but returns 1): When the session is reused, we have to set
8175 ssl->verify_result to the appropriate error code to avoid
8177 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8179 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8180 case in PKCS7_dataInit() where the signed PKCS7 structure
8181 didn't contain any existing data because it was being created.
8182 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8184 *) Add a salt to the key derivation routines in enc.c. This
8185 forms the first 8 bytes of the encrypted file. Also add a
8186 -S option to allow a salt to be input on the command line.
8189 *) New function X509_cmp(). Oddly enough there wasn't a function
8190 to compare two certificates. We do this by working out the SHA1
8191 hash and comparing that. X509_cmp() will be needed by the trust
8195 *) SSL_get1_session() is like SSL_get_session(), but increments
8196 the reference count in the SSL_SESSION returned.
8197 [Geoff Thorpe <geoff@eu.c2.net>]
8199 *) Fix for 'req': it was adding a null to request attributes.
8200 Also change the X509_LOOKUP and X509_INFO code to handle
8201 certificate auxiliary information.
8204 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8208 *) Add the possibility to add extra information to the memory leak
8209 detecting output, to form tracebacks, showing from where each
8210 allocation was originated: CRYPTO_push_info("constant string") adds
8211 the string plus current file name and line number to a per-thread
8212 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8213 is like calling CYRPTO_pop_info() until the stack is empty.
8214 Also updated memory leak detection code to be multi-thread-safe.
8217 *) Add options -text and -noout to pkcs7 utility and delete the
8218 encryption options which never did anything. Update docs.
8221 *) Add options to some of the utilities to allow the pass phrase
8222 to be included on either the command line (not recommended on
8223 OSes like Unix) or read from the environment. Update the
8224 manpages and fix a few bugs.
8227 *) Add a few manpages for some of the openssl commands.
8230 *) Fix the -revoke option in ca. It was freeing up memory twice,
8231 leaking and not finding already revoked certificates.
8234 *) Extensive changes to support certificate auxiliary information.
8235 This involves the use of X509_CERT_AUX structure and X509_AUX
8236 functions. An X509_AUX function such as PEM_read_X509_AUX()
8237 can still read in a certificate file in the usual way but it
8238 will also read in any additional "auxiliary information". By
8239 doing things this way a fair degree of compatibility can be
8240 retained: existing certificates can have this information added
8241 using the new 'x509' options.
8243 Current auxiliary information includes an "alias" and some trust
8244 settings. The trust settings will ultimately be used in enhanced
8245 certificate chain verification routines: currently a certificate
8246 can only be trusted if it is self signed and then it is trusted
8250 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8251 The problem was that one of the replacement routines had not been working
8252 since SSLeay releases. For now the offending routine has been replaced
8253 with non-optimised assembler. Even so, this now gives around 95%
8254 performance improvement for 1024 bit RSA signs.
8257 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8258 handling. Most clients have the effective key size in bits equal to
8259 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8260 A few however don't do this and instead use the size of the decrypted key
8261 to determine the RC2 key length and the AlgorithmIdentifier to determine
8262 the effective key length. In this case the effective key length can still
8263 be 40 bits but the key length can be 168 bits for example. This is fixed
8264 by manually forcing an RC2 key into the EVP_PKEY structure because the
8265 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8266 the key length and effective key length are equal.
8269 *) Add a bunch of functions that should simplify the creation of
8270 X509_NAME structures. Now you should be able to do:
8271 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8272 and have it automatically work out the correct field type and fill in
8273 the structures. The more adventurous can try:
8274 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8275 and it will (hopefully) work out the correct multibyte encoding.
8278 *) Change the 'req' utility to use the new field handling and multibyte
8279 copy routines. Before the DN field creation was handled in an ad hoc
8280 way in req, ca, and x509 which was rather broken and didn't support
8281 BMPStrings or UTF8Strings. Since some software doesn't implement
8282 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8283 using the dirstring_type option. See the new comment in the default
8284 openssl.cnf for more info.
8287 *) Make crypto/rand/md_rand.c more robust:
8288 - Assure unique random numbers after fork().
8289 - Make sure that concurrent threads access the global counter and
8290 md serializably so that we never lose entropy in them
8291 or use exactly the same state in multiple threads.
8292 Access to the large state is not always serializable because
8293 the additional locking could be a performance killer, and
8294 md should be large enough anyway.
8297 *) New file apps/app_rand.c with commonly needed functionality
8298 for handling the random seed file.
8300 Use the random seed file in some applications that previously did not:
8302 dsaparam -genkey (which also ignored its '-rand' option),
8305 x509 (when signing).
8306 Except on systems with /dev/urandom, it is crucial to have a random
8307 seed file at least for key creation, DSA signing, and for DH exchanges;
8308 for RSA signatures we could do without one.
8310 gendh and gendsa (unlike genrsa) used to read only the first byte
8311 of each file listed in the '-rand' option. The function as previously
8312 found in genrsa is now in app_rand.c and is used by all programs
8313 that support '-rand'.
8316 *) In RAND_write_file, use mode 0600 for creating files;
8317 don't just chmod when it may be too late.
8320 *) Report an error from X509_STORE_load_locations
8321 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8324 *) New function ASN1_mbstring_copy() this copies a string in either
8325 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8326 into an ASN1_STRING type. A mask of permissible types is passed
8327 and it chooses the "minimal" type to use or an error if not type
8331 *) Add function equivalents to the various macros in asn1.h. The old
8332 macros are retained with an M_ prefix. Code inside the library can
8333 use the M_ macros. External code (including the openssl utility)
8334 should *NOT* in order to be "shared library friendly".
8337 *) Add various functions that can check a certificate's extensions
8338 to see if it usable for various purposes such as SSL client,
8339 server or S/MIME and CAs of these types. This is currently
8340 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8341 verification. Also added a -purpose flag to x509 utility to
8342 print out all the purposes.
8345 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8349 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8350 for, obtain and decode and extension and obtain its critical flag.
8351 This allows all the necessary extension code to be handled in a
8352 single function call.
8355 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8356 platforms. See crypto/rc4/rc4_enc.c for further details.
8359 *) New -noout option to asn1parse. This causes no output to be produced
8360 its main use is when combined with -strparse and -out to extract data
8361 from a file (which may not be in ASN.1 format).
8364 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8365 when producing the local key id.
8366 [Richard Levitte <levitte@stacken.kth.se>]
8368 *) New option -dhparam in s_server. This allows a DH parameter file to be
8369 stated explicitly. If it is not stated then it tries the first server
8370 certificate file. The previous behaviour hard coded the filename
8374 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8375 a public key to be input or output. For example:
8376 openssl rsa -in key.pem -pubout -out pubkey.pem
8377 Also added necessary DSA public key functions to handle this.
8380 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8381 in the message. This was handled by allowing
8382 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8383 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8385 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8386 to the end of the strings whereas this didn't. This would cause problems
8387 if strings read with d2i_ASN1_bytes() were later modified.
8388 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8390 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8391 data and it contains EOF it will end up returning an error. This is
8392 caused by input 46 bytes long. The cause is due to the way base64
8393 BIOs find the start of base64 encoded data. They do this by trying a
8394 trial decode on each line until they find one that works. When they
8395 do a flag is set and it starts again knowing it can pass all the
8396 data directly through the decoder. Unfortunately it doesn't reset
8397 the context it uses. This means that if EOF is reached an attempt
8398 is made to pass two EOFs through the context and this causes the
8399 resulting error. This can also cause other problems as well. As is
8400 usual with these problems it takes *ages* to find and the fix is
8401 trivial: move one line.
8402 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8404 *) Ugly workaround to get s_client and s_server working under Windows. The
8405 old code wouldn't work because it needed to select() on sockets and the
8406 tty (for keypresses and to see if data could be written). Win32 only
8407 supports select() on sockets so we select() with a 1s timeout on the
8408 sockets and then see if any characters are waiting to be read, if none
8409 are present then we retry, we also assume we can always write data to
8410 the tty. This isn't nice because the code then blocks until we've
8411 received a complete line of data and it is effectively polling the
8412 keyboard at 1s intervals: however it's quite a bit better than not
8413 working at all :-) A dedicated Windows application might handle this
8414 with an event loop for example.
8417 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8418 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8419 will be called when RSA_sign() and RSA_verify() are used. This is useful
8420 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8421 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8422 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8423 This necessitated the support of an extra signature type NID_md5_sha1
8424 for SSL signatures and modifications to the SSL library to use it instead
8425 of calling RSA_public_decrypt() and RSA_private_encrypt().
8428 *) Add new -verify -CAfile and -CApath options to the crl program, these
8429 will lookup a CRL issuers certificate and verify the signature in a
8430 similar way to the verify program. Tidy up the crl program so it
8431 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8432 less strict. It will now permit CRL extensions even if it is not
8433 a V2 CRL: this will allow it to tolerate some broken CRLs.
8436 *) Initialize all non-automatic variables each time one of the openssl
8437 sub-programs is started (this is necessary as they may be started
8438 multiple times from the "OpenSSL>" prompt).
8439 [Lennart Bang, Bodo Moeller]
8441 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8442 removing all other RSA functionality (this is what NO_RSA does). This
8443 is so (for example) those in the US can disable those operations covered
8444 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8448 *) Non-copying interface to BIO pairs.
8449 (still largely untested)
8452 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8453 ASCII string. This was handled independently in various places before.
8456 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8457 UTF8 strings a character at a time.
8460 *) Use client_version from client hello to select the protocol
8461 (s23_srvr.c) and for RSA client key exchange verification
8462 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8465 *) Add various utility functions to handle SPKACs, these were previously
8466 handled by poking round in the structure internals. Added new function
8467 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8468 print, verify and generate SPKACs. Based on an original idea from
8469 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8472 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8475 *) Allow the config file extension section to be overwritten on the
8476 command line. Based on an original idea from Massimiliano Pala
8477 <madwolf@comune.modena.it>. The new option is called -extensions
8478 and can be applied to ca, req and x509. Also -reqexts to override
8479 the request extensions in req and -crlexts to override the crl extensions
8483 *) Add new feature to the SPKAC handling in ca. Now you can include
8484 the same field multiple times by preceding it by "XXXX." for example:
8487 this is the same syntax as used in the req config file.
8490 *) Allow certificate extensions to be added to certificate requests. These
8491 are specified in a 'req_extensions' option of the req section of the
8492 config file. They can be printed out with the -text option to req but
8493 are otherwise ignored at present.
8496 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8497 data read consists of only the final block it would not decrypted because
8498 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8499 A misplaced 'break' also meant the decrypted final block might not be
8500 copied until the next read.
8503 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8504 a few extra parameters to the DH structure: these will be useful if
8505 for example we want the value of 'q' or implement X9.42 DH.
8508 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8509 provides hooks that allow the default DSA functions or functions on a
8510 "per key" basis to be replaced. This allows hardware acceleration and
8511 hardware key storage to be handled without major modification to the
8512 library. Also added low level modexp hooks and CRYPTO_EX structure and
8513 associated functions.
8516 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8517 as "read only": it can't be written to and the buffer it points to will
8518 not be freed. Reading from a read only BIO is much more efficient than
8519 a normal memory BIO. This was added because there are several times when
8520 an area of memory needs to be read from a BIO. The previous method was
8521 to create a memory BIO and write the data to it, this results in two
8522 copies of the data and an O(n^2) reading algorithm. There is a new
8523 function BIO_new_mem_buf() which creates a read only memory BIO from
8524 an area of memory. Also modified the PKCS#7 routines to use read only
8528 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8529 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8530 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8531 but a retry condition occured while trying to read the rest.
8534 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8535 NID_pkcs7_encrypted by default: this was wrong since this should almost
8536 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8537 the encrypted data type: this is a more sensible place to put it and it
8538 allows the PKCS#12 code to be tidied up that duplicated this
8542 *) Changed obj_dat.pl script so it takes its input and output files on
8543 the command line. This should avoid shell escape redirection problems
8547 *) Initial support for certificate extension requests, these are included
8548 in things like Xenroll certificate requests. Included functions to allow
8549 extensions to be obtained and added.
8552 *) -crlf option to s_client and s_server for sending newlines as
8553 CRLF (as required by many protocols).
8556 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8558 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8559 [Ralf S. Engelschall]
8561 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8562 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8564 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8568 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8569 DH parameters/keys (q is lost during that conversion, but the resulting
8570 DH parameters contain its length).
8572 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8573 much faster than DH_generate_parameters (which creates parameters
8574 where p = 2*q + 1), and also the smaller q makes DH computations
8575 much more efficient (160-bit exponentiation instead of 1024-bit
8576 exponentiation); so this provides a convenient way to support DHE
8577 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8578 utter importance to use
8579 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8581 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8582 when such DH parameters are used, because otherwise small subgroup
8583 attacks may become possible!
8586 *) Avoid memory leak in i2d_DHparams.
8589 *) Allow the -k option to be used more than once in the enc program:
8590 this allows the same encrypted message to be read by multiple recipients.
8593 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8594 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8595 it will always use the numerical form of the OID, even if it has a short
8599 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8600 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8601 otherwise bn_mod_exp was called. In the case of hardware keys for example
8602 no private key components need be present and it might store extra data
8603 in the RSA structure, which cannot be accessed from bn_mod_exp.
8604 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8605 private key operations.
8608 *) Added support for SPARC Linux.
8611 *) pem_password_cb function type incompatibly changed from
8612 typedef int pem_password_cb(char *buf, int size, int rwflag);
8614 ....(char *buf, int size, int rwflag, void *userdata);
8615 so that applications can pass data to their callbacks:
8616 The PEM[_ASN1]_{read,write}... functions and macros now take an
8617 additional void * argument, which is just handed through whenever
8618 the password callback is called.
8619 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8621 New function SSL_CTX_set_default_passwd_cb_userdata.
8623 Compatibility note: As many C implementations push function arguments
8624 onto the stack in reverse order, the new library version is likely to
8625 interoperate with programs that have been compiled with the old
8626 pem_password_cb definition (PEM_whatever takes some data that
8627 happens to be on the stack as its last argument, and the callback
8628 just ignores this garbage); but there is no guarantee whatsoever that
8631 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8632 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8633 problems not only on Windows, but also on some Unix platforms.
8634 To avoid problematic command lines, these definitions are now in an
8635 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8636 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8639 *) MIPS III/IV assembler module is reimplemented.
8642 *) More DES library cleanups: remove references to srand/rand and
8643 delete an unused file.
8646 *) Add support for the the free Netwide assembler (NASM) under Win32,
8647 since not many people have MASM (ml) and it can be hard to obtain.
8648 This is currently experimental but it seems to work OK and pass all
8649 the tests. Check out INSTALL.W32 for info.
8652 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8653 without temporary keys kept an extra copy of the server key,
8654 and connections with temporary keys did not free everything in case
8658 *) New function RSA_check_key and new openssl rsa option -check
8659 for verifying the consistency of RSA keys.
8660 [Ulf Moeller, Bodo Moeller]
8662 *) Various changes to make Win32 compile work:
8663 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8664 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8665 comparison" warnings.
8666 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8669 *) Add a debugging option to PKCS#5 v2 key generation function: when
8670 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8671 derived keys are printed to stderr.
8674 *) Copy the flags in ASN1_STRING_dup().
8675 [Roman E. Pavlov <pre@mo.msk.ru>]
8677 *) The x509 application mishandled signing requests containing DSA
8678 keys when the signing key was also DSA and the parameters didn't match.
8680 It was supposed to omit the parameters when they matched the signing key:
8681 the verifying software was then supposed to automatically use the CA's
8682 parameters if they were absent from the end user certificate.
8684 Omitting parameters is no longer recommended. The test was also
8685 the wrong way round! This was probably due to unusual behaviour in
8686 EVP_cmp_parameters() which returns 1 if the parameters match.
8687 This meant that parameters were omitted when they *didn't* match and
8688 the certificate was useless. Certificates signed with 'ca' didn't have
8690 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8692 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8693 The interface is as follows:
8694 Applications can use
8695 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8696 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8697 "off" is now the default.
8698 The library internally uses
8699 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8700 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8701 to disable memory-checking temporarily.
8703 Some inconsistent states that previously were possible (and were
8704 even the default) are now avoided.
8706 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8707 with each memory chunk allocated; this is occasionally more helpful
8708 than just having a counter.
8710 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8712 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8716 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8717 which largely parallels "options", but is for changing API behaviour,
8718 whereas "options" are about protocol behaviour.
8719 Initial "mode" flags are:
8721 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8722 a single record has been written.
8723 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8724 retries use the same buffer location.
8725 (But all of the contents must be
8729 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8732 *) Fix problems with no-hmac etc.
8733 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8735 *) New functions RSA_get_default_method(), RSA_set_method() and
8736 RSA_get_method(). These allows replacement of RSA_METHODs without having
8737 to mess around with the internals of an RSA structure.
8740 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8741 Also really enable memory leak checks in openssl.c and in some
8743 [Chad C. Mulligan, Bodo Moeller]
8745 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8746 up the length of negative integers. This has now been simplified to just
8747 store the length when it is first determined and use it later, rather
8748 than trying to keep track of where data is copied and updating it to
8750 [Steve Henson, reported by Brien Wheeler
8751 <bwheeler@authentica-security.com>]
8753 *) Add a new function PKCS7_signatureVerify. This allows the verification
8754 of a PKCS#7 signature but with the signing certificate passed to the
8755 function itself. This contrasts with PKCS7_dataVerify which assumes the
8756 certificate is present in the PKCS#7 structure. This isn't always the
8757 case: certificates can be omitted from a PKCS#7 structure and be
8758 distributed by "out of band" means (such as a certificate database).
8761 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8762 function prototypes in pem.h, also change util/mkdef.pl to add the
8763 necessary function names.
8766 *) mk1mf.pl (used by Windows builds) did not properly read the
8767 options set by Configure in the top level Makefile, and Configure
8768 was not even able to write more than one option correctly.
8769 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8772 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8773 file to be loaded from a BIO or FILE pointer. The BIO version will
8774 for example allow memory BIOs to contain config info.
8777 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8778 Whoever hopes to achieve shared-library compatibility across versions
8779 must use this, not the compile-time macro.
8780 (Exercise 0.9.4: Which is the minimum library version required by
8782 Note: All this applies only to multi-threaded programs, others don't
8786 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8787 through a BIO pair triggered the default case, i.e.
8788 SSLerr(...,SSL_R_UNKNOWN_STATE).
8791 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8792 can use the SSL library even if none of the specific BIOs is
8796 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8797 for the encoded length.
8798 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8800 *) Add initial documentation of the X509V3 functions.
8803 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8804 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8805 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8806 secure PKCS#8 private key format with a high iteration count.
8809 *) Fix determination of Perl interpreter: A perl or perl5
8810 _directory_ in $PATH was also accepted as the interpreter.
8811 [Ralf S. Engelschall]
8813 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8814 wrong with it but it was very old and did things like calling
8815 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8819 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8820 to use the new extension code.
8823 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8824 with macros. This should make it easier to change their form, add extra
8825 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8829 *) Add to configuration table a new entry that can specify an alternative
8830 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8831 according to Mark Crispin <MRC@Panda.COM>.
8835 *) DES CBC did not update the IV. Weird.
8838 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8839 Changing the behaviour of the former might break existing programs --
8840 where IV updating is needed, des_ncbc_encrypt can be used.
8843 *) When bntest is run from "make test" it drives bc to check its
8844 calculations, as well as internally checking them. If an internal check
8845 fails, it needs to cause bc to give a non-zero result or make test carries
8846 on without noticing the failure. Fixed.
8849 *) DES library cleanups.
8852 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8853 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8854 ciphers. NOTE: although the key derivation function has been verified
8855 against some published test vectors it has not been extensively tested
8856 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8860 *) Instead of "mkdir -p", which is not fully portable, use new
8861 Perl script "util/mkdir-p.pl".
8864 *) Rewrite the way password based encryption (PBE) is handled. It used to
8865 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8866 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8867 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8868 the 'parameter' field of the AlgorithmIdentifier is passed to the
8869 underlying key generation function so it must do its own ASN1 parsing.
8870 This has also changed the EVP_PBE_CipherInit() function which now has a
8871 'parameter' argument instead of literal salt and iteration count values
8872 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8875 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8876 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8877 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8878 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8879 value was just used as a "magic string" and not used directly its
8880 value doesn't matter.
8883 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8887 *) "linux-sparc64" configuration (ultrapenguin).
8888 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8889 "linux-sparc" configuration.
8890 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8892 *) config now generates no-xxx options for missing ciphers.
8895 *) Support the EBCDIC character set (work in progress).
8896 File ebcdic.c not yet included because it has a different license.
8897 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8899 *) Support BS2000/OSD-POSIX.
8900 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8902 *) Make callbacks for key generation use void * instead of char *.
8905 *) Make S/MIME samples compile (not yet tested).
8908 *) Additional typesafe stacks.
8911 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8915 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8917 *) New configuration variant "sco5-gcc".
8919 *) Updated some demos.
8920 [Sean O Riordain, Wade Scholine]
8922 *) Add missing BIO_free at exit of pkcs12 application.
8925 *) Fix memory leak in conf.c.
8928 *) Updates for Win32 to assembler version of MD5.
8931 *) Set #! path to perl in apps/der_chop to where we found it
8932 instead of using a fixed path.
8935 *) SHA library changes for irix64-mips4-cc.
8938 *) Improvements for VMS support.
8942 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8944 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8945 This also avoids the problems with SC4.2 and unpatched SC5.
8946 [Andy Polyakov <appro@fy.chalmers.se>]
8948 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8949 These are required because of the typesafe stack would otherwise break
8950 existing code. If old code used a structure member which used to be STACK
8951 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8952 sk_num or sk_value it would produce an error because the num, data members
8953 are not present in STACK_OF. Now it just produces a warning. sk_set
8954 replaces the old method of assigning a value to sk_value
8955 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8956 that does this will no longer work (and should use sk_set instead) but
8957 this could be regarded as a "questionable" behaviour anyway.
8960 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8961 correctly handle encrypted S/MIME data.
8964 *) Change type of various DES function arguments from des_cblock
8965 (which means, in function argument declarations, pointer to char)
8966 to des_cblock * (meaning pointer to array with 8 char elements),
8967 which allows the compiler to do more typechecking; it was like
8968 that back in SSLeay, but with lots of ugly casts.
8970 Introduce new type const_des_cblock.
8973 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8974 problems: find RecipientInfo structure that matches recipient certificate
8975 and initialise the ASN1 structures properly based on passed cipher.
8978 *) Belatedly make the BN tests actually check the results.
8981 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8982 to and from BNs: it was completely broken. New compilation option
8983 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8984 key elements as negative integers.
8987 *) Reorganize and speed up MD5.
8988 [Andy Polyakov <appro@fy.chalmers.se>]
8991 [Richard Levitte <richard@levitte.org>]
8993 *) New option -out to asn1parse to allow the parsed structure to be
8994 output to a file. This is most useful when combined with the -strparse
8995 option to examine the output of things like OCTET STRINGS.
8998 *) Make SSL library a little more fool-proof by not requiring any longer
8999 that SSL_set_{accept,connect}_state be called before
9000 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9001 in many applications because usually everything *appeared* to work as
9002 intended anyway -- now it really works as intended).
9005 *) Move openssl.cnf out of lib/.
9008 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9009 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9010 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9011 [Ralf S. Engelschall]
9013 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9014 handle PKCS#7 enveloped data properly.
9015 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9017 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9018 copying pointers. The cert_st handling is changed by this in
9019 various ways (and thus what used to be known as ctx->default_cert
9020 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9021 any longer when s->cert does not give us what we need).
9022 ssl_cert_instantiate becomes obsolete by this change.
9023 As soon as we've got the new code right (possibly it already is?),
9024 we have solved a couple of bugs of the earlier code where s->cert
9025 was used as if it could not have been shared with other SSL structures.
9027 Note that using the SSL API in certain dirty ways now will result
9028 in different behaviour than observed with earlier library versions:
9029 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9030 does not influence s as it used to.
9032 In order to clean up things more thoroughly, inside SSL_SESSION
9033 we don't use CERT any longer, but a new structure SESS_CERT
9034 that holds per-session data (if available); currently, this is
9035 the peer's certificate chain and, for clients, the server's certificate
9036 and temporary key. CERT holds only those values that can have
9037 meaningful defaults in an SSL_CTX.
9040 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9041 from the internal representation. Various PKCS#7 fixes: remove some
9042 evil casts and set the enc_dig_alg field properly based on the signing
9046 *) Allow PKCS#12 password to be set from the command line or the
9047 environment. Let 'ca' get its config file name from the environment
9048 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9052 *) Allow certificate policies extension to use an IA5STRING for the
9053 organization field. This is contrary to the PKIX definition but
9054 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9058 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9059 without disallowing inline assembler and the like for non-pedantic builds.
9062 *) Support Borland C++ builder.
9063 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9068 *) SHA-1 cleanups and performance enhancements.
9069 [Andy Polyakov <appro@fy.chalmers.se>]
9071 *) Sparc v8plus assembler for the bignum library.
9072 [Andy Polyakov <appro@fy.chalmers.se>]
9074 *) Accept any -xxx and +xxx compiler options in Configure.
9077 *) Update HPUX configuration.
9080 *) Add missing sk_<type>_unshift() function to safestack.h
9081 [Ralf S. Engelschall]
9083 *) New function SSL_CTX_use_certificate_chain_file that sets the
9084 "extra_cert"s in addition to the certificate. (This makes sense
9085 only for "PEM" format files, as chains as a whole are not
9089 *) Support verify_depth from the SSL API.
9090 x509_vfy.c had what can be considered an off-by-one-error:
9091 Its depth (which was not part of the external interface)
9092 was actually counting the number of certificates in a chain;
9093 now it really counts the depth.
9096 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9097 instead of X509err, which often resulted in confusing error
9098 messages since the error codes are not globally unique
9099 (e.g. an alleged error in ssl3_accept when a certificate
9100 didn't match the private key).
9102 *) New function SSL_CTX_set_session_id_context that allows to set a default
9103 value (so that you don't need SSL_set_session_id_context for each
9104 connection using the SSL_CTX).
9107 *) OAEP decoding bug fix.
9110 *) Support INSTALL_PREFIX for package builders, as proposed by
9114 *) New Configure options "threads" and "no-threads". For systems
9115 where the proper compiler options are known (currently Solaris
9116 and Linux), "threads" is the default.
9119 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9122 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9123 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9124 such as /usr/local/bin.
9127 *) "make linux-shared" to build shared libraries.
9128 [Niels Poppe <niels@netbox.org>]
9130 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9133 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9134 extension adding in x509 utility.
9137 *) Remove NOPROTO sections and error code comments.
9140 *) Partial rewrite of the DEF file generator to now parse the ANSI
9144 *) New Configure options --prefix=DIR and --openssldir=DIR.
9147 *) Complete rewrite of the error code script(s). It is all now handled
9148 by one script at the top level which handles error code gathering,
9149 header rewriting and C source file generation. It should be much better
9150 than the old method: it now uses a modified version of Ulf's parser to
9151 read the ANSI prototypes in all header files (thus the old K&R definitions
9152 aren't needed for error creation any more) and do a better job of
9153 translating function codes into names. The old 'ASN1 error code imbedded
9154 in a comment' is no longer necessary and it doesn't use .err files which
9155 have now been deleted. Also the error code call doesn't have to appear all
9156 on one line (which resulted in some large lines...).
9159 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9162 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9163 0 (which usually indicates a closed connection), but continue reading.
9166 *) Fix some race conditions.
9169 *) Add support for CRL distribution points extension. Add Certificate
9170 Policies and CRL distribution points documentation.
9173 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9176 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9177 8 of keying material. Merlin has also confirmed interop with this fix
9178 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9179 [Merlin Hughes <merlin@baltimore.ie>]
9181 *) Fix lots of warnings.
9182 [Richard Levitte <levitte@stacken.kth.se>]
9184 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9185 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9186 [Richard Levitte <levitte@stacken.kth.se>]
9188 *) Fix problems with sizeof(long) == 8.
9189 [Andy Polyakov <appro@fy.chalmers.se>]
9191 *) Change functions to ANSI C.
9194 *) Fix typos in error codes.
9195 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9197 *) Remove defunct assembler files from Configure.
9200 *) SPARC v8 assembler BIGNUM implementation.
9201 [Andy Polyakov <appro@fy.chalmers.se>]
9203 *) Support for Certificate Policies extension: both print and set.
9204 Various additions to support the r2i method this uses.
9207 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9208 return a const string when you are expecting an allocated buffer.
9211 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9212 types DirectoryString and DisplayText.
9215 *) Add code to allow r2i extensions to access the configuration database,
9216 add an LHASH database driver and add several ctx helper functions.
9219 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9220 fail when they extended the size of a BIGNUM.
9223 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9224 support typesafe stack.
9227 *) Fix typo in SSL_[gs]et_options().
9228 [Nils Frostberg <nils@medcom.se>]
9230 *) Delete various functions and files that belonged to the (now obsolete)
9231 old X509V3 handling code.
9234 *) New Configure option "rsaref".
9237 *) Don't auto-generate pem.h.
9240 *) Introduce type-safe ASN.1 SETs.
9243 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9244 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9246 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9247 that links with OpenSSL (well at least cause lots of warnings), but fear
9248 not: the conversion is trivial, and it eliminates loads of evil casts. A
9249 few STACKed things have been converted already. Feel free to convert more.
9250 In the fullness of time, I'll do away with the STACK type altogether.
9253 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9254 specified in <certfile> by updating the entry in the index.txt file.
9255 This way one no longer has to edit the index.txt file manually for
9256 revoking a certificate. The -revoke option does the gory details now.
9257 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9259 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9260 `-text' option at all and this way the `-noout -text' combination was
9261 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9262 [Ralf S. Engelschall]
9264 *) Make sure a corresponding plain text error message exists for the
9265 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9266 verify callback function determined that a certificate was revoked.
9267 [Ralf S. Engelschall]
9269 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9270 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9271 all available cipers including rc5, which was forgotten until now.
9272 In order to let the testing shell script know which algorithms
9273 are available, a new (up to now undocumented) command
9274 "openssl list-cipher-commands" is used.
9277 *) Bugfix: s_client occasionally would sleep in select() when
9278 it should have checked SSL_pending() first.
9281 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9282 the raw DSA values prior to ASN.1 encoding.
9285 *) Tweaks to Configure
9286 [Niels Poppe <niels@netbox.org>]
9288 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9292 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9295 *) New config option to avoid instructions that are illegal on the 80386.
9296 The default code is faster, but requires at least a 486.
9299 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9300 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9301 same as SSL2_VERSION anyway.
9304 *) New "-showcerts" option for s_client.
9307 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9308 application. Various cleanups and fixes.
9311 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9312 modify error routines to work internally. Add error codes and PBE init
9313 to library startup routines.
9316 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9317 packing functions to asn1 and evp. Changed function names and error
9318 codes along the way.
9321 *) PKCS12 integration: and so it begins... First of several patches to
9322 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9323 objects to objects.h
9326 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9327 and display support for Thawte strong extranet extension.
9330 *) Add LinuxPPC support.
9331 [Jeff Dubrule <igor@pobox.org>]
9333 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9334 bn_div_words in alpha.s.
9335 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9337 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9338 OAEP isn't supported when OpenSSL is built with RSAref.
9339 [Ulf Moeller <ulf@fitug.de>]
9341 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9342 so they no longer are missing under -DNOPROTO.
9343 [Soren S. Jorvang <soren@t.dk>]
9346 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9348 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9349 doesn't work when the session is reused. Coming soon!
9352 *) Fix a security hole, that allows sessions to be reused in the wrong
9353 context thus bypassing client cert protection! All software that uses
9354 client certs and session caches in multiple contexts NEEDS PATCHING to
9355 allow session reuse! A fuller solution is in the works.
9356 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9358 *) Some more source tree cleanups (removed obsolete files
9359 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9360 permission on "config" script to be executable) and a fix for the INSTALL
9362 [Ulf Moeller <ulf@fitug.de>]
9364 *) Remove some legacy and erroneous uses of malloc, free instead of
9366 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9368 *) Make rsa_oaep_test return non-zero on error.
9369 [Ulf Moeller <ulf@fitug.de>]
9371 *) Add support for native Solaris shared libraries. Configure
9372 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9373 if someone would make that last step automatic.
9374 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9376 *) ctx_size was not built with the right compiler during "make links". Fixed.
9379 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9380 except NULL ciphers". This means the default cipher list will no longer
9381 enable NULL ciphers. They need to be specifically enabled e.g. with
9382 the string "DEFAULT:eNULL".
9385 *) Fix to RSA private encryption routines: if p < q then it would
9386 occasionally produce an invalid result. This will only happen with
9387 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9390 *) Be less restrictive and allow also `perl util/perlpath.pl
9391 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9392 because this way one can also use an interpreter named `perl5' (which is
9393 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9394 installed as `perl').
9395 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9397 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9398 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9400 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9401 advapi32.lib to Win32 build and change the pem test comparision
9402 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9403 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9404 and crypto/des/ede_cbcm_enc.c.
9407 *) DES quad checksum was broken on big-endian architectures. Fixed.
9410 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9411 Win32 test batch file so it (might) work again. The Win32 test batch file
9412 is horrible: I feel ill....
9415 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9416 in e_os.h. Audit of header files to check ANSI and non ANSI
9417 sections: 10 functions were absent from non ANSI section and not exported
9418 from Windows DLLs. Fixed up libeay.num for new functions.
9421 *) Make `openssl version' output lines consistent.
9422 [Ralf S. Engelschall]
9424 *) Fix Win32 symbol export lists for BIO functions: Added
9425 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9426 to ms/libeay{16,32}.def.
9427 [Ralf S. Engelschall]
9429 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9430 fine under Unix and passes some trivial tests I've now added. But the
9431 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9432 added to make sure no one expects that this stuff really works in the
9433 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9434 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9436 [Ralf S. Engelschall]
9438 *) Fix the generation of two part addresses in perl.
9439 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9441 *) Add config entry for Linux on MIPS.
9442 [John Tobey <jtobey@channel1.com>]
9444 *) Make links whenever Configure is run, unless we are on Windoze.
9447 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9448 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9452 *) Add a useful kludge to allow package maintainers to specify compiler and
9453 other platforms details on the command line without having to patch the
9454 Configure script everytime: One now can use ``perl Configure
9455 <id>:<details>'', i.e. platform ids are allowed to have details appended
9456 to them (seperated by colons). This is treated as there would be a static
9457 pre-configured entry in Configure's %table under key <id> with value
9458 <details> and ``perl Configure <id>'' is called. So, when you want to
9459 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9460 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9461 now, which overrides the FreeBSD-elf entry on-the-fly.
9462 [Ralf S. Engelschall]
9464 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9467 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9468 on the `perl Configure ...' command line. This way one can compile
9469 OpenSSL libraries with Position Independent Code (PIC) which is needed
9470 for linking it into DSOs.
9471 [Ralf S. Engelschall]
9473 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9477 *) Cleaned up the LICENSE document: The official contact for any license
9478 questions now is the OpenSSL core team under openssl-core@openssl.org.
9479 And add a paragraph about the dual-license situation to make sure people
9480 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9481 to the OpenSSL toolkit.
9482 [Ralf S. Engelschall]
9484 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9485 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9486 Additonally cleaned up the `make links' target: Remove unnecessary
9487 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9488 to speed processing and no longer clutter the display with confusing
9489 stuff. Instead only the actually done links are displayed.
9490 [Ralf S. Engelschall]
9492 *) Permit null encryption ciphersuites, used for authentication only. It used
9493 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9494 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9498 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9499 signed attributes when verifying signatures (this would break them),
9500 the detached data encoding was wrong and public keys obtained using
9501 X509_get_pubkey() weren't freed.
9504 *) Add text documentation for the BUFFER functions. Also added a work around
9505 to a Win95 console bug. This was triggered by the password read stuff: the
9506 last character typed gets carried over to the next fread(). If you were
9507 generating a new cert request using 'req' for example then the last
9508 character of the passphrase would be CR which would then enter the first
9512 *) Added the new `Includes OpenSSL Cryptography Software' button as
9513 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9514 button and can be used by applications based on OpenSSL to show the
9515 relationship to the OpenSSL project.
9516 [Ralf S. Engelschall]
9518 *) Remove confusing variables in function signatures in files
9519 ssl/ssl_lib.c and ssl/ssl.h.
9520 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9522 *) Don't install bss_file.c under PREFIX/include/
9523 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9525 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9526 functions that return function pointers and has support for NT specific
9527 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9528 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9529 unsigned to signed types: this was killing the Win32 compile.
9532 *) Add new certificate file to stack functions,
9533 SSL_add_dir_cert_subjects_to_stack() and
9534 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9535 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9536 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9537 This means that Apache-SSL and similar packages don't have to mess around
9538 to add as many CAs as they want to the preferred list.
9541 *) Experiment with doxygen documentation. Currently only partially applied to
9543 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9544 openssl.doxy as the configuration file.
9547 *) Get rid of remaining C++-style comments which strict C compilers hate.
9548 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9550 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9551 compiled in by default: it has problems with large keys.
9554 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9555 DH private keys and/or callback functions which directly correspond to
9556 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9557 is needed for applications which have to configure certificates on a
9558 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9560 For the RSA certificate situation is makes no difference, but
9561 for the DSA certificate situation this fixes the "no shared cipher"
9562 problem where the OpenSSL cipher selection procedure failed because the
9563 temporary keys were not overtaken from the context and the API provided
9564 no way to reconfigure them.
9565 The new functions now let applications reconfigure the stuff and they
9566 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9567 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9568 non-public-API function ssl_cert_instantiate() is used as a helper
9569 function and also to reduce code redundancy inside ssl_rsa.c.
9570 [Ralf S. Engelschall]
9572 *) Move s_server -dcert and -dkey options out of the undocumented feature
9573 area because they are useful for the DSA situation and should be
9574 recognized by the users.
9575 [Ralf S. Engelschall]
9577 *) Fix the cipher decision scheme for export ciphers: the export bits are
9578 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9579 SSL_EXP_MASK. So, the original variable has to be used instead of the
9580 already masked variable.
9581 [Richard Levitte <levitte@stacken.kth.se>]
9583 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9584 [Richard Levitte <levitte@stacken.kth.se>]
9586 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9587 from `int' to `unsigned int' because it's a length and initialized by
9588 EVP_DigestFinal() which expects an `unsigned int *'.
9589 [Richard Levitte <levitte@stacken.kth.se>]
9591 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9592 script. Instead use the usual Shell->Perl transition trick.
9593 [Ralf S. Engelschall]
9595 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9596 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9597 -noout -modulus' as it's already the case for `openssl rsa -noout
9598 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9599 currently the public key is printed (a decision which was already done by
9600 `openssl dsa -modulus' in the past) which serves a similar purpose.
9601 Additionally the NO_RSA no longer completely removes the whole -modulus
9602 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9604 [Ralf S. Engelschall]
9606 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9607 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9608 [Arne Ansper <arne@ats.cyber.ee>]
9610 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9611 to be added. Now both 'req' and 'ca' can use new objects defined in the
9615 *) Add cool BIO that does syslog (or event log on NT).
9616 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9618 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9619 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9620 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9621 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9624 *) Add preliminary config info for new extension code.
9627 *) Make RSA_NO_PADDING really use no padding.
9628 [Ulf Moeller <ulf@fitug.de>]
9630 *) Generate errors when private/public key check is done.
9633 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9634 for some CRL extensions and new objects added.
9637 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9638 key usage extension and fuller support for authority key id.
9641 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9642 padding method for RSA, which is recommended for new applications in PKCS
9643 #1 v2.0 (RFC 2437, October 1998).
9644 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9645 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9646 against Bleichbacher's attack on RSA.
9647 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9650 *) Updates to the new SSL compression code
9651 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9653 *) Fix so that the version number in the master secret, when passed
9654 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9655 (because the server will not accept higher), that the version number
9656 is 0x03,0x01, not 0x03,0x00
9657 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9659 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9660 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9661 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9664 *) Support for RAW extensions where an arbitrary extension can be
9665 created by including its DER encoding. See apps/openssl.cnf for
9669 *) Make sure latest Perl versions don't interpret some generated C array
9670 code as Perl array code in the crypto/err/err_genc.pl script.
9671 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9673 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9674 not many people have the assembler. Various Win32 compilation fixes and
9675 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9679 *) Modify configure script 'Configure' to automatically create crypto/date.h
9680 file under Win32 and also build pem.h from pem.org. New script
9681 util/mkfiles.pl to create the MINFO file on environments that can't do a
9682 'make files': perl util/mkfiles.pl >MINFO should work.
9685 *) Major rework of DES function declarations, in the pursuit of correctness
9686 and purity. As a result, many evil casts evaporated, and some weirdness,
9687 too. You may find this causes warnings in your code. Zapping your evil
9688 casts will probably fix them. Mostly.
9691 *) Fix for a typo in asn1.h. Bug fix to object creation script
9692 obj_dat.pl. It considered a zero in an object definition to mean
9693 "end of object": none of the objects in objects.h have any zeros
9694 so it wasn't spotted.
9695 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9697 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9698 Masking (CBCM). In the absence of test vectors, the best I have been able
9699 to do is check that the decrypt undoes the encrypt, so far. Send me test
9700 vectors if you have them.
9703 *) Correct calculation of key length for export ciphers (too much space was
9704 allocated for null ciphers). This has not been tested!
9707 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9708 message is now correct (it understands "crypto" and "ssl" on its
9709 command line). There is also now an "update" option. This will update
9710 the util/ssleay.num and util/libeay.num files with any new functions.
9712 perl util/mkdef.pl crypto ssl update
9713 it will update them.
9716 *) Overhauled the Perl interface (perl/*):
9717 - ported BN stuff to OpenSSL's different BN library
9718 - made the perl/ source tree CVS-aware
9719 - renamed the package from SSLeay to OpenSSL (the files still contain
9720 their history because I've copied them in the repository)
9721 - removed obsolete files (the test scripts will be replaced
9722 by better Test::Harness variants in the future)
9723 [Ralf S. Engelschall]
9725 *) First cut for a very conservative source tree cleanup:
9726 1. merge various obsolete readme texts into doc/ssleay.txt
9727 where we collect the old documents and readme texts.
9728 2. remove the first part of files where I'm already sure that we no
9729 longer need them because of three reasons: either they are just temporary
9730 files which were left by Eric or they are preserved original files where
9731 I've verified that the diff is also available in the CVS via "cvs diff
9732 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9733 the crypto/md/ stuff).
9734 [Ralf S. Engelschall]
9736 *) More extension code. Incomplete support for subject and issuer alt
9737 name, issuer and authority key id. Change the i2v function parameters
9738 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9739 what that's for :-) Fix to ASN1 macro which messed up
9740 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9743 *) Preliminary support for ENUMERATED type. This is largely copied from the
9747 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9748 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9750 *) Make sure `make rehash' target really finds the `openssl' program.
9751 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9753 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9754 like to hear about it if this slows down other processors.
9757 *) Add CygWin32 platform information to Configure script.
9758 [Alan Batie <batie@aahz.jf.intel.com>]
9760 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9761 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9763 *) New program nseq to manipulate netscape certificate sequences
9766 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9770 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9771 but the BN code had some problems that would cause failures when
9772 doing certificate verification and some other functions.
9773 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9775 *) Add ASN1 and PEM code to support netscape certificate sequences.
9778 *) Add ASN1 and PEM code to support netscape certificate sequences.
9781 *) Add several PKIX and private extended key usage OIDs.
9784 *) Modify the 'ca' program to handle the new extension code. Modify
9785 openssl.cnf for new extension format, add comments.
9788 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9789 and add a sample to openssl.cnf so req -x509 now adds appropriate
9793 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9794 error code, add initial support to X509_print() and x509 application.
9797 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9798 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9799 stuff is currently isolated and isn't even compiled yet.
9802 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9803 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9804 Removed the versions check from X509 routines when loading extensions:
9805 this allows certain broken certificates that don't set the version
9806 properly to be processed.
9809 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9810 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9811 can still be regenerated with "make depend".
9814 *) Spelling mistake in C version of CAST-128.
9815 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9817 *) Changes to the error generation code. The perl script err-code.pl
9818 now reads in the old error codes and retains the old numbers, only
9819 adding new ones if necessary. It also only changes the .err files if new
9820 codes are added. The makefiles have been modified to only insert errors
9821 when needed (to avoid needlessly modifying header files). This is done
9822 by only inserting errors if the .err file is newer than the auto generated
9823 C file. To rebuild all the error codes from scratch (the old behaviour)
9824 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9825 or delete all the .err files.
9828 *) CAST-128 was incorrectly implemented for short keys. The C version has
9829 been fixed, but is untested. The assembler versions are also fixed, but
9830 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9831 to regenerate it if needed.
9832 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9833 Hagino <itojun@kame.net>]
9835 *) File was opened incorrectly in randfile.c.
9836 [Ulf Möller <ulf@fitug.de>]
9838 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9839 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9840 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9841 al: it's just almost always a UTCTime. Note this patch adds new error
9842 codes so do a "make errors" if there are problems.
9845 *) Correct Linux 1 recognition in config.
9846 [Ulf Möller <ulf@fitug.de>]
9848 *) Remove pointless MD5 hash when using DSA keys in ca.
9849 [Anonymous <nobody@replay.com>]
9851 *) Generate an error if given an empty string as a cert directory. Also
9852 generate an error if handed NULL (previously returned 0 to indicate an
9853 error, but didn't set one).
9854 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9856 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9859 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9860 parameters. This was causing a warning which killed off the Win32 compile.
9863 *) Remove C++ style comments from crypto/bn/bn_local.h.
9864 [Neil Costigan <neil.costigan@celocom.com>]
9866 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9867 based on a text string, looking up short and long names and finally
9868 "dot" format. The "dot" format stuff didn't work. Added new function
9869 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9870 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9871 OID is not part of the table.
9874 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9875 X509_LOOKUP_by_alias().
9878 *) Sort openssl functions by name.
9881 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9882 encryption from sample DSA keys (in case anyone is interested the password
9886 *) Make _all_ *_free functions accept a NULL pointer.
9887 [Frans Heymans <fheymans@isaserver.be>]
9889 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9891 [Anonymous <nobody@replay.com>]
9893 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9894 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9896 *) Don't blow it for numeric -newkey arguments to apps/req.
9897 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9899 *) Temp key "for export" tests were wrong in s3_srvr.c.
9900 [Anonymous <nobody@replay.com>]
9902 *) Add prototype for temp key callback functions
9903 SSL_CTX_set_tmp_{rsa,dh}_callback().
9906 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9907 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9910 *) X509_name_add_entry() freed the wrong thing after an error.
9911 [Arne Ansper <arne@ats.cyber.ee>]
9913 *) rsa_eay.c would attempt to free a NULL context.
9914 [Arne Ansper <arne@ats.cyber.ee>]
9916 *) BIO_s_socket() had a broken should_retry() on Windoze.
9917 [Arne Ansper <arne@ats.cyber.ee>]
9919 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9920 [Arne Ansper <arne@ats.cyber.ee>]
9922 *) Make sure the already existing X509_STORE->depth variable is initialized
9923 in X509_STORE_new(), but document the fact that this variable is still
9924 unused in the certificate verification process.
9925 [Ralf S. Engelschall]
9927 *) Fix the various library and apps files to free up pkeys obtained from
9928 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9931 *) Fix reference counting in X509_PUBKEY_get(). This makes
9932 demos/maurice/example2.c work, amongst others, probably.
9933 [Steve Henson and Ben Laurie]
9935 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9936 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9937 are no longer created. This way we have a single and consistent command
9938 line interface `openssl <command>', similar to `cvs <command>'.
9939 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9941 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9942 BIT STRING wrapper always have zero unused bits.
9945 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9948 *) Make the top-level INSTALL documentation easier to understand.
9951 *) Makefiles updated to exit if an error occurs in a sub-directory
9952 make (including if user presses ^C) [Paul Sutton]
9954 *) Make Montgomery context stuff explicit in RSA data structure.
9957 *) Fix build order of pem and err to allow for generated pem.h.
9960 *) Fix renumbering bug in X509_NAME_delete_entry().
9963 *) Enhanced the err-ins.pl script so it makes the error library number
9964 global and can add a library name. This is needed for external ASN1 and
9965 other error libraries.
9968 *) Fixed sk_insert which never worked properly.
9971 *) Fix ASN1 macros so they can handle indefinite length construted
9972 EXPLICIT tags. Some non standard certificates use these: they can now
9976 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9977 into a single doc/ssleay.txt bundle. This way the information is still
9978 preserved but no longer messes up this directory. Now it's new room for
9979 the new set of documenation files.
9980 [Ralf S. Engelschall]
9982 *) SETs were incorrectly DER encoded. This was a major pain, because they
9983 shared code with SEQUENCEs, which aren't coded the same. This means that
9984 almost everything to do with SETs or SEQUENCEs has either changed name or
9985 number of arguments.
9986 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9988 *) Fix test data to work with the above.
9991 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9992 was already fixed by Eric for 0.9.1 it seems.
9993 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9995 *) Autodetect FreeBSD3.
9998 *) Fix various bugs in Configure. This affects the following platforms:
10002 unixware-2.0-pentium
10006 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10007 before they are needed.
10010 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10014 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10016 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10017 changed SSLeay to OpenSSL in version strings.
10018 [Ralf S. Engelschall]
10020 *) Some fixups to the top-level documents.
10023 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10024 because the symlink to include/ was missing.
10025 [Ralf S. Engelschall]
10027 *) Incorporated the popular no-RSA/DSA-only patches
10028 which allow to compile a RSA-free SSLeay.
10029 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10031 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10032 when "ssleay" is still not found.
10033 [Ralf S. Engelschall]
10035 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10036 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10038 *) Updated the README file.
10039 [Ralf S. Engelschall]
10041 *) Added various .cvsignore files in the CVS repository subdirs
10042 to make a "cvs update" really silent.
10043 [Ralf S. Engelschall]
10045 *) Recompiled the error-definition header files and added
10046 missing symbols to the Win32 linker tables.
10047 [Ralf S. Engelschall]
10049 *) Cleaned up the top-level documents;
10050 o new files: CHANGES and LICENSE
10051 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10052 o merged COPYRIGHT into LICENSE
10053 o removed obsolete TODO file
10054 o renamed MICROSOFT to INSTALL.W32
10055 [Ralf S. Engelschall]
10057 *) Removed dummy files from the 0.9.1b source tree:
10058 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10059 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10060 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10061 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10062 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10063 [Ralf S. Engelschall]
10065 *) Added various platform portability fixes.
10068 *) The Genesis of the OpenSSL rpject:
10069 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10070 Young and Tim J. Hudson created while they were working for C2Net until
10072 [The OpenSSL Project]
10075 Changes between 0.9.0b and 0.9.1b [not released]
10077 *) Updated a few CA certificates under certs/
10080 *) Changed some BIGNUM api stuff.
10083 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10084 DGUX x86, Linux Alpha, etc.
10087 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10088 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10092 *) Add -strparse option to asn1pars program which parses nested
10094 [Dr Stephen Henson <shenson@bigfoot.com>]
10096 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10099 *) DSA fix for "ca" program.
10102 *) Added "-genkey" option to "dsaparam" program.
10105 *) Added RIPE MD160 (rmd160) message digest.
10108 *) Added -a (all) option to "ssleay version" command.
10111 *) Added PLATFORM define which is the id given to Configure.
10114 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10117 *) Extended the ASN.1 parser routines.
10120 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10123 *) Added a BN_CTX to the BN library.
10126 *) Fixed the weak key values in DES library
10129 *) Changed API in EVP library for cipher aliases.
10132 *) Added support for RC2/64bit cipher.
10135 *) Converted the lhash library to the crypto/mem.c functions.
10138 *) Added more recognized ASN.1 object ids.
10141 *) Added more RSA padding checks for SSL/TLS.
10144 *) Added BIO proxy/filter functionality.
10147 *) Added extra_certs to SSL_CTX which can be used
10148 send extra CA certificates to the client in the CA cert chain sending
10149 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10152 *) Now Fortezza is denied in the authentication phase because
10153 this is key exchange mechanism is not supported by SSLeay at all.
10156 *) Additional PKCS1 checks.
10159 *) Support the string "TLSv1" for all TLS v1 ciphers.
10162 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10163 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10166 *) Fixed a few memory leaks.
10169 *) Fixed various code and comment typos.
10172 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10173 bytes sent in the client random.
10174 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob