5 Changes between 1.0.1 and 1.0.2 [xx XXX xxxx]
7 *) SSL/TLS tracing code. This parses out SSL/TLS records using the
8 message callback and prints the results. Needs compile time option
9 "enable-ssl-trace". New options to s_client and s_server to enable
13 *) New ctrl and macro to retrieve supported points extensions.
14 Print out extension in s_server.
17 *) New functions to retrieve certificate signature and signature
21 *) Add functions to retrieve and manipulate the raw cipherlist sent by a
25 *) New Suite B modes for TLS code. These use and enforce the requirements
26 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
27 only use Suite B curves. The Suite B modes can be set by using the
28 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
31 *) New chain verification flags for Suite B levels of security. Check
32 algorithms are acceptable when flags are set in X509_verify_cert.
35 *) Make tls1_check_chain return a set of flags indicating checks passed
36 by a certificate chain. Add additional tests to handle client
37 certificates: checks for matching certificate type and issuer name
41 *) If an attempt is made to use a signature algorithm not in the peer
42 preference list abort the handshake. If client has no suitable
43 signature algorithms in response to a certificate request do not
47 *) If server EC tmp key is not in client preference list abort handshake.
50 *) Add support for certificate stores in CERT structure. This makes it
51 possible to have different stores per SSL structure or one store in
52 the parent SSL_CTX. Include distint stores for certificate chain
53 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
54 to build and store a certificate chain in CERT structure: returing
55 an error if the chain cannot be built: this will allow applications
56 to test if a chain is correctly configured.
58 Note: if the CERT based stores are not set then the parent SSL_CTX
59 store is used to retain compatibility with existing behaviour.
63 *) New function ssl_set_client_disabled to set a ciphersuite disabled
64 mask based on the current session, check mask when sending client
65 hello and checking the requested ciphersuite.
68 *) New ctrls to retrieve and set certificate types in a certificate
69 request message. Print out received values in s_client. If certificate
70 types is not set with custom values set sensible values based on
71 supported signature algorithms.
74 *) Support for distinct client and server supported signature algorithms.
77 *) Add certificate callback. If set this is called whenever a certificate
78 is required by client or server. An application can decide which
79 certificate chain to present based on arbitrary criteria: for example
80 supported signature algorithms. Add very simple example to s_server.
81 This fixes many of the problems and restrictions of the existing client
82 certificate callback: for example you can now clear an existing
83 certificate and specify the whole chain.
86 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
87 the certificate can be used for (if anything). Set valid_flags field
88 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
89 to have similar checks in it.
91 Add new "cert_flags" field to CERT structure and include a "strict mode".
92 This enforces some TLS certificate requirements (such as only permitting
93 certificate signature algorithms contained in the supported algorithms
94 extension) which some implementations ignore: this option should be used
95 with caution as it could cause interoperability issues.
98 *) Update and tidy signature algorithm extension processing. Work out
99 shared signature algorithms based on preferences and peer algorithms
100 and print them out in s_client and s_server. Abort handshake if no
101 shared signature algorithms.
104 *) Add new functions to allow customised supported signature algorithms
105 for SSL and SSL_CTX structures. Add options to s_client and s_server
109 *) New function SSL_certs_clear() to delete all references to certificates
110 from an SSL structure. Before this once a certificate had been added
111 it couldn't be removed.
114 *) Integrate hostname, email address and IP address checking with certificate
115 verification. New verify options supporting checking in opensl utility.
118 *) Fixes and wildcard matching support to hostname and email checking
119 functions. Add manual page.
120 [Florian Weimer (Red Hat Product Security Team)]
122 *) New functions to check a hostname email or IP address against a
123 certificate. Add options x509 utility to print results of checks against
127 *) Fix OCSP checking.
128 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
130 *) Backport support for partial chain verification: if an intermediate
131 certificate is explicitly trusted (using -addtrust option to x509
132 utility for example) the verification is sucessful even if the chain
134 The OCSP checking fix depends on this backport.
135 [Steve Henson and Rob Stradling <rob.stradling@comodo.com>]
137 *) Add -trusted_first option which attempts to find certificates in the
138 trusted store even if an untrusted chain is also supplied.
141 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
142 platform support for Linux and Android.
145 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
146 the right response is stapled. Also change current certificate to
147 the certificate actually sent.
148 See http://rt.openssl.org/Ticket/Display.html?id=2836.
149 [Rob Stradling <rob.stradling@comodo.com>]
151 *) Support for linux-x32, ILP32 environment in x86_64 framework.
155 [Emilia Kasper, Adam Langley, Ben Laurie (Google)]
157 *) Experimental multi-implementation support for FIPS capable OpenSSL.
158 When in FIPS mode the approved implementations are used as normal,
159 when not in FIPS mode the internal unapproved versions are used instead.
160 This means that the FIPS capable OpenSSL isn't forced to use the
161 (often lower perfomance) FIPS implementations outside FIPS mode.
164 *) Transparently support X9.42 DH parameters when calling
165 PEM_read_bio_DHparameters. This means existing applications can handle
166 the new parameter format automatically.
169 *) Initial experimental support for X9.42 DH parameter format: mainly
170 to support use of 'q' parameter for RFC5114 parameters.
173 *) Add DH parameters from RFC5114 including test data to dhtest.
176 *) Support for automatic EC temporary key parameter selection. If enabled
177 the most preferred EC parameters are automatically used instead of
178 hardcoded fixed parameters. Now a server just has to call:
179 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
180 support ECDH and use the most appropriate parameters.
183 *) Enhance and tidy EC curve and point format TLS extension code. Use
184 static structures instead of allocation if default values are used.
185 New ctrls to set curves we wish to support and to retrieve shared curves.
186 Print out shared curves in s_server. New options to s_server and s_client
187 to set list of supported curves.
190 *) New ctrls to retrieve supported signature algorithms and
191 supported curve values as an array of NIDs. Extend openssl utility
192 to print out received values.
195 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
196 between NIDs and the more common NIST names such as "P-256". Enhance
197 ecparam utility and ECC method to recognise the NIST names for curves.
200 *) Enhance SSL/TLS certificate chain handling to support different
201 chains for each certificate instead of one chain in the parent SSL_CTX.
204 *) Support for fixed DH ciphersuite client authentication: where both
205 server and client use DH certificates with common parameters.
208 *) Support for fixed DH ciphersuites: those requiring DH server
212 Changes between 1.0.1c and 1.0.1d [xx XXX xxxx]
214 *) Make openssl verify return errors.
215 [Chris Palmer <palmer@google.com> and Ben Laurie]
217 *) Fix possible deadlock when decoding public keys.
220 *) Don't use TLS 1.0 record version number in initial client hello
224 Changes between 1.0.1b and 1.0.1c [10 May 2012]
226 *) Sanity check record length before skipping explicit IV in TLS
227 1.2, 1.1 and DTLS to avoid DoS attack.
229 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
230 fuzzing as a service testing platform.
234 *) Initialise tkeylen properly when encrypting CMS messages.
235 Thanks to Solar Designer of Openwall for reporting this issue.
238 *) In FIPS mode don't try to use composite ciphers as they are not
242 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
244 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
245 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
246 mean any application compiled against OpenSSL 1.0.0 headers setting
247 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
248 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
249 0x10000000L Any application which was previously compiled against
250 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
251 will need to be recompiled as a result. Letting be results in
252 inability to disable specifically TLS 1.1 and in client context,
253 in unlike event, limit maximum offered version to TLS 1.0 [see below].
256 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
257 disable just protocol X, but all protocols above X *if* there are
258 protocols *below* X still enabled. In more practical terms it means
259 that if application wants to disable TLS1.0 in favor of TLS1.1 and
260 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
261 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
265 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
267 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
268 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
269 in CRYPTO_realloc_clean.
271 Thanks to Tavis Ormandy, Google Security Team, for discovering this
272 issue and to Adam Langley <agl@chromium.org> for fixing it.
274 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
276 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
279 *) Workarounds for some broken servers that "hang" if a client hello
280 record length exceeds 255 bytes:
282 1. Do not use record version number > TLS 1.0 in initial client
283 hello: some (but not all) hanging servers will now work.
284 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
285 the number of ciphers sent in the client hello. This should be
286 set to an even number, such as 50, for example by passing:
287 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
288 Most broken servers should now work.
289 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
290 TLS 1.2 client support entirely.
293 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
296 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
298 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
299 STRING form instead of a DigestInfo.
302 *) The format used for MDC2 RSA signatures is inconsistent between EVP
303 and the RSA_sign/RSA_verify functions. This was made more apparent when
304 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
305 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
306 the correct format in RSA_verify so both forms transparently work.
309 *) Some servers which support TLS 1.0 can choke if we initially indicate
310 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
311 encrypted premaster secret. As a workaround use the maximum pemitted
312 client version in client hello, this should keep such servers happy
313 and still work with previous versions of OpenSSL.
316 *) Add support for TLS/DTLS heartbeats.
317 [Robin Seggelmann <seggelmann@fh-muenster.de>]
319 *) Add support for SCTP.
320 [Robin Seggelmann <seggelmann@fh-muenster.de>]
322 *) Improved PRNG seeding for VOS.
323 [Paul Green <Paul.Green@stratus.com>]
325 *) Extensive assembler packs updates, most notably:
327 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
328 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
329 - x86_64: bit-sliced AES implementation;
330 - ARM: NEON support, contemporary platforms optimizations;
331 - s390x: z196 support;
332 - *: GHASH and GF(2^m) multiplication implementations;
336 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
337 (removal of unnecessary code)
338 [Peter Sylvester <peter.sylvester@edelweb.fr>]
340 *) Add TLS key material exporter from RFC 5705.
343 *) Add DTLS-SRTP negotiation from RFC 5764.
346 *) Add Next Protocol Negotiation,
347 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
348 disabled with a no-npn flag to config or Configure. Code donated
350 [Adam Langley <agl@google.com> and Ben Laurie]
352 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
353 NIST-P256, NIST-P521, with constant-time single point multiplication on
354 typical inputs. Compiler support for the nonstandard type __uint128_t is
355 required to use this (present in gcc 4.4 and later, for 64-bit builds).
356 Code made available under Apache License version 2.0.
358 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
359 line to include this in your build of OpenSSL, and run "make depend" (or
360 "make update"). This enables the following EC_METHODs:
362 EC_GFp_nistp224_method()
363 EC_GFp_nistp256_method()
364 EC_GFp_nistp521_method()
366 EC_GROUP_new_by_curve_name() will automatically use these (while
367 EC_GROUP_new_curve_GFp() currently prefers the more flexible
369 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
371 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
372 all platforms. Move ssize_t definition from e_os.h to the public
373 header file e_os2.h as it now appears in public header file cms.h
376 *) New -sigopt option to the ca, req and x509 utilities. Additional
377 signature parameters can be passed using this option and in
381 *) Add RSA PSS signing function. This will generate and set the
382 appropriate AlgorithmIdentifiers for PSS based on those in the
383 corresponding EVP_MD_CTX structure. No application support yet.
386 *) Support for companion algorithm specific ASN1 signing routines.
387 New function ASN1_item_sign_ctx() signs a pre-initialised
388 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
389 the appropriate parameters.
392 *) Add new algorithm specific ASN1 verification initialisation function
393 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
394 handling will be the same no matter what EVP_PKEY_METHOD is used.
395 Add a PSS handler to support verification of PSS signatures: checked
396 against a number of sample certificates.
399 *) Add signature printing for PSS. Add PSS OIDs.
400 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
402 *) Add algorithm specific signature printing. An individual ASN1 method
403 can now print out signatures instead of the standard hex dump.
405 More complex signatures (e.g. PSS) can print out more meaningful
406 information. Include DSA version that prints out the signature
410 *) Password based recipient info support for CMS library: implementing
414 *) Split password based encryption into PBES2 and PBKDF2 functions. This
415 neatly separates the code into cipher and PBE sections and is required
416 for some algorithms that split PBES2 into separate pieces (such as
420 *) Session-handling fixes:
421 - Fix handling of connections that are resuming with a session ID,
422 but also support Session Tickets.
423 - Fix a bug that suppressed issuing of a new ticket if the client
424 presented a ticket with an expired session.
425 - Try to set the ticket lifetime hint to something reasonable.
426 - Make tickets shorter by excluding irrelevant information.
427 - On the client side, don't ignore renewed tickets.
428 [Adam Langley, Bodo Moeller (Google)]
430 *) Fix PSK session representation.
433 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
435 This work was sponsored by Intel.
438 *) Add GCM support to TLS library. Some custom code is needed to split
439 the IV between the fixed (from PRF) and explicit (from TLS record)
440 portions. This adds all GCM ciphersuites supported by RFC5288 and
441 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
442 add a special AESGCM string for GCM only.
445 *) Expand range of ctrls for AES GCM. Permit setting invocation
446 field on decrypt and retrieval of invocation field only on encrypt.
449 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
450 As required by RFC5289 these ciphersuites cannot be used if for
451 versions of TLS earlier than 1.2.
454 *) For FIPS capable OpenSSL interpret a NULL default public key method
455 as unset and return the appopriate default but do *not* set the default.
456 This means we can return the appopriate method in applications that
457 swicth between FIPS and non-FIPS modes.
460 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
461 ENGINE is used then we cannot handle that in the FIPS module so we
462 keep original code iff non-FIPS operations are allowed.
465 *) Add -attime option to openssl utilities.
466 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
468 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
471 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
472 FIPS EC methods unconditionally for now.
475 *) New build option no-ec2m to disable characteristic 2 code.
478 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
479 all cases can be covered as some introduce binary incompatibilities.
482 *) Redirect RSA operations to FIPS module including keygen,
483 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
486 *) Add similar low level API blocking to ciphers.
489 *) Low level digest APIs are not approved in FIPS mode: any attempt
490 to use these will cause a fatal error. Applications that *really* want
491 to use them can use the private_* version instead.
494 *) Redirect cipher operations to FIPS module for FIPS builds.
497 *) Redirect digest operations to FIPS module for FIPS builds.
500 *) Update build system to add "fips" flag which will link in fipscanister.o
501 for static and shared library builds embedding a signature if needed.
504 *) Output TLS supported curves in preference order instead of numerical
505 order. This is currently hardcoded for the highest order curves first.
506 This should be configurable so applications can judge speed vs strength.
509 *) Add TLS v1.2 server support for client authentication.
512 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
516 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
517 FIPS modules versions.
520 *) Add TLS v1.2 client side support for client authentication. Keep cache
521 of handshake records longer as we don't know the hash algorithm to use
522 until after the certificate request message is received.
525 *) Initial TLS v1.2 client support. Add a default signature algorithms
526 extension including all the algorithms we support. Parse new signature
527 format in client key exchange. Relax some ECC signing restrictions for
528 TLS v1.2 as indicated in RFC5246.
531 *) Add server support for TLS v1.2 signature algorithms extension. Switch
532 to new signature format when needed using client digest preference.
533 All server ciphersuites should now work correctly in TLS v1.2. No client
534 support yet and no support for client certificates.
537 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
538 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
539 ciphersuites. At present only RSA key exchange ciphersuites work with
540 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
541 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
542 and version checking.
545 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
546 with this defined it will not be affected by any changes to ssl internal
547 structures. Add several utility functions to allow openssl application
548 to work with OPENSSL_NO_SSL_INTERN defined.
552 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
554 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
557 *) Permit abbreviated handshakes when renegotiating using the function
558 SSL_renegotiate_abbreviated().
559 [Robin Seggelmann <seggelmann@fh-muenster.de>]
561 *) Add call to ENGINE_register_all_complete() to
562 ENGINE_load_builtin_engines(), so some implementations get used
563 automatically instead of needing explicit application support.
566 *) Add support for TLS key exporter as described in RFC5705.
567 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
569 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
570 a few changes are required:
572 Add SSL_OP_NO_TLSv1_1 flag.
574 Update version checking logic to handle version 1.1.
575 Add explicit IV handling (ported from DTLS code).
576 Add command line options to s_client/s_server.
579 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
581 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
582 in CMS and PKCS7 code. When RSA decryption fails use a random key for
583 content decryption and always return the same error. Note: this attack
584 needs on average 2^20 messages so it only affects automated senders. The
585 old behaviour can be reenabled in the CMS code by setting the
586 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
587 an MMA defence is not necessary.
588 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
589 this issue. (CVE-2012-0884)
592 *) Fix CVE-2011-4619: make sure we really are receiving a
593 client hello before rejecting multiple SGC restarts. Thanks to
594 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
597 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
599 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
600 Thanks to Antonio Martin, Enterprise Secure Access Research and
601 Development, Cisco Systems, Inc. for discovering this bug and
602 preparing a fix. (CVE-2012-0050)
605 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
607 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
608 of the Vaudenay padding oracle attack on CBC mode encryption
609 which enables an efficient plaintext recovery attack against
610 the OpenSSL implementation of DTLS. Their attack exploits timing
611 differences arising during decryption processing. A research
612 paper describing this attack can be found at:
613 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
614 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
615 Security Group at Royal Holloway, University of London
616 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
617 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
618 for preparing the fix. (CVE-2011-4108)
619 [Robin Seggelmann, Michael Tuexen]
621 *) Clear bytes used for block padding of SSL 3.0 records.
623 [Adam Langley (Google)]
625 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
626 Kadianakis <desnacked@gmail.com> for discovering this issue and
627 Adam Langley for preparing the fix. (CVE-2011-4619)
628 [Adam Langley (Google)]
630 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
631 [Andrey Kulikov <amdeich@gmail.com>]
633 *) Prevent malformed RFC3779 data triggering an assertion failure.
634 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
635 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
636 [Rob Austein <sra@hactrn.net>]
638 *) Improved PRNG seeding for VOS.
639 [Paul Green <Paul.Green@stratus.com>]
641 *) Fix ssl_ciph.c set-up race.
642 [Adam Langley (Google)]
644 *) Fix spurious failures in ecdsatest.c.
645 [Emilia Käsper (Google)]
647 *) Fix the BIO_f_buffer() implementation (which was mixing different
648 interpretations of the '..._len' fields).
649 [Adam Langley (Google)]
651 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
652 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
653 threads won't reuse the same blinding coefficients.
655 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
656 lock to call BN_BLINDING_invert_ex, and avoids one use of
657 BN_BLINDING_update for each BN_BLINDING structure (previously,
658 the last update always remained unused).
659 [Emilia Käsper (Google)]
661 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
662 [Bob Buckholz (Google)]
664 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
666 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
667 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
668 [Kaspar Brand <ossl@velox.ch>]
670 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
671 for multi-threaded use of ECDH. (CVE-2011-3210)
672 [Adam Langley (Google)]
674 *) Fix x509_name_ex_d2i memory leak on bad inputs.
677 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
678 signature public key algorithm by using OID xref utilities instead.
679 Before this you could only use some ECC ciphersuites with SHA1 only.
682 *) Add protection against ECDSA timing attacks as mentioned in the paper
683 by Billy Bob Brumley and Nicola Tuveri, see:
685 http://eprint.iacr.org/2011/232.pdf
687 [Billy Bob Brumley and Nicola Tuveri]
689 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
691 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
692 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
694 *) Fix bug in string printing code: if *any* escaping is enabled we must
695 escape the escape character (backslash) or the resulting string is
699 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
701 *) Disable code workaround for ancient and obsolete Netscape browsers
702 and servers: an attacker can use it in a ciphersuite downgrade attack.
703 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
706 *) Fixed J-PAKE implementation error, originally discovered by
707 Sebastien Martini, further info and confirmation from Stefan
708 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
711 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
713 *) Fix extension code to avoid race conditions which can result in a buffer
714 overrun vulnerability: resumed sessions must not be modified as they can
715 be shared by multiple threads. CVE-2010-3864
718 *) Fix WIN32 build system to correctly link an ENGINE directory into
722 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
724 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
726 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
728 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
730 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
731 context. The operation can be customised via the ctrl mechanism in
732 case ENGINEs want to include additional functionality.
735 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
738 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
739 output hashes compatible with older versions of OpenSSL.
740 [Willy Weisz <weisz@vcpc.univie.ac.at>]
742 *) Fix compression algorithm handling: if resuming a session use the
743 compression algorithm of the resumed session instead of determining
744 it from client hello again. Don't allow server to change algorithm.
747 *) Add load_crls() function to apps tidying load_certs() too. Add option
748 to verify utility to allow additional CRLs to be included.
751 *) Update OCSP request code to permit adding custom headers to the request:
752 some responders need this.
755 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
757 [Julia Lawall <julia@diku.dk>]
759 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
760 needlessly dereferenced structures, used obsolete functions and
761 didn't handle all updated verify codes correctly.
764 *) Disable MD2 in the default configuration.
767 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
768 indicate the initial BIO being pushed or popped. This makes it possible
769 to determine whether the BIO is the one explicitly called or as a result
770 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
771 it handles reference counts correctly and doesn't zero out the I/O bio
772 when it is not being explicitly popped. WARNING: applications which
773 included workarounds for the old buggy behaviour will need to be modified
774 or they could free up already freed BIOs.
777 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
778 renaming to all platforms (within the 0.9.8 branch, this was
779 done conditionally on Netware platforms to avoid a name clash).
780 [Guenter <lists@gknw.net>]
782 *) Add ECDHE and PSK support to DTLS.
783 [Michael Tuexen <tuexen@fh-muenster.de>]
785 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
789 *) Add "missing" function EVP_MD_flags() (without this the only way to
790 retrieve a digest flags is by accessing the structure directly. Update
791 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
792 or cipher is registered as in the "from" argument. Print out all
793 registered digests in the dgst usage message instead of manually
794 attempting to work them out.
797 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
798 this allows the use of compression and extensions. Change default cipher
799 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
800 by default unless an application cipher string requests it.
803 *) Alter match criteria in PKCS12_parse(). It used to try to use local
804 key ids to find matching certificates and keys but some PKCS#12 files
805 don't follow the (somewhat unwritten) rules and this strategy fails.
806 Now just gather all certificates together and the first private key
807 then look for the first certificate that matches the key.
810 *) Support use of registered digest and cipher names for dgst and cipher
811 commands instead of having to add each one as a special case. So now
818 openssl dgst -sha256 foo
820 and this works for ENGINE based algorithms too.
824 *) Update Gost ENGINE to support parameter files.
825 [Victor B. Wagner <vitus@cryptocom.ru>]
827 *) Support GeneralizedTime in ca utility.
828 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
830 *) Enhance the hash format used for certificate directory links. The new
831 form uses the canonical encoding (meaning equivalent names will work
832 even if they aren't identical) and uses SHA1 instead of MD5. This form
833 is incompatible with the older format and as a result c_rehash should
834 be used to rebuild symbolic links.
837 *) Make PKCS#8 the default write format for private keys, replacing the
838 traditional format. This form is standardised, more secure and doesn't
839 include an implicit MD5 dependency.
842 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
843 committed to OpenSSL should pass this lot as a minimum.
846 *) Add session ticket override functionality for use by EAP-FAST.
847 [Jouni Malinen <j@w1.fi>]
849 *) Modify HMAC functions to return a value. Since these can be implemented
850 in an ENGINE errors can occur.
853 *) Type-checked OBJ_bsearch_ex.
856 *) Type-checked OBJ_bsearch. Also some constification necessitated
857 by type-checking. Still to come: TXT_DB, bsearch(?),
858 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
862 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
863 seconds to a tm structure directly, instead of going through OS
864 specific date routines. This avoids any issues with OS routines such
865 as the year 2038 bug. New *_adj() functions for ASN1 time structures
866 and X509_time_adj_ex() to cover the extended range. The existing
867 X509_time_adj() is still usable and will no longer have any date issues.
870 *) Delta CRL support. New use deltas option which will attempt to locate
871 and search any appropriate delta CRLs available.
873 This work was sponsored by Google.
876 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
877 code and add additional score elements. Validate alternate CRL paths
878 as part of the CRL checking and indicate a new error "CRL path validation
879 error" in this case. Applications wanting additional details can use
880 the verify callback and check the new "parent" field. If this is not
881 NULL CRL path validation is taking place. Existing applications wont
882 see this because it requires extended CRL support which is off by
885 This work was sponsored by Google.
888 *) Support for freshest CRL extension.
890 This work was sponsored by Google.
893 *) Initial indirect CRL support. Currently only supported in the CRLs
894 passed directly and not via lookup. Process certificate issuer
895 CRL entry extension and lookup CRL entries by bother issuer name
896 and serial number. Check and process CRL issuer entry in IDP extension.
898 This work was sponsored by Google.
901 *) Add support for distinct certificate and CRL paths. The CRL issuer
902 certificate is validated separately in this case. Only enabled if
903 an extended CRL support flag is set: this flag will enable additional
904 CRL functionality in future.
906 This work was sponsored by Google.
909 *) Add support for policy mappings extension.
911 This work was sponsored by Google.
914 *) Fixes to pathlength constraint, self issued certificate handling,
915 policy processing to align with RFC3280 and PKITS tests.
917 This work was sponsored by Google.
920 *) Support for name constraints certificate extension. DN, email, DNS
921 and URI types are currently supported.
923 This work was sponsored by Google.
926 *) To cater for systems that provide a pointer-based thread ID rather
927 than numeric, deprecate the current numeric thread ID mechanism and
928 replace it with a structure and associated callback type. This
929 mechanism allows a numeric "hash" to be extracted from a thread ID in
930 either case, and on platforms where pointers are larger than 'long',
931 mixing is done to help ensure the numeric 'hash' is usable even if it
932 can't be guaranteed unique. The default mechanism is to use "&errno"
933 as a pointer-based thread ID to distinguish between threads.
935 Applications that want to provide their own thread IDs should now use
936 CRYPTO_THREADID_set_callback() to register a callback that will call
937 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
939 Note that ERR_remove_state() is now deprecated, because it is tied
940 to the assumption that thread IDs are numeric. ERR_remove_state(0)
941 to free the current thread's error state should be replaced by
942 ERR_remove_thread_state(NULL).
944 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
945 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
946 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
947 application was previously providing a numeric thread callback that
948 was inappropriate for distinguishing threads, then uniqueness might
949 have been obtained with &errno that happened immediately in the
950 intermediate development versions of OpenSSL; this is no longer the
951 case, the numeric thread callback will now override the automatic use
953 [Geoff Thorpe, with help from Bodo Moeller]
955 *) Initial support for different CRL issuing certificates. This covers a
956 simple case where the self issued certificates in the chain exist and
957 the real CRL issuer is higher in the existing chain.
959 This work was sponsored by Google.
962 *) Removed effectively defunct crypto/store from the build.
965 *) Revamp of STACK to provide stronger type-checking. Still to come:
966 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
967 ASN1_STRING, CONF_VALUE.
970 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
971 RAM on SSL connections. This option can save about 34k per idle SSL.
974 *) Revamp of LHASH to provide stronger type-checking. Still to come:
975 STACK, TXT_DB, bsearch, qsort.
978 *) Initial support for Cryptographic Message Syntax (aka CMS) based
979 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
980 support for data, signedData, compressedData, digestedData and
981 encryptedData, envelopedData types included. Scripts to check against
982 RFC4134 examples draft and interop and consistency checks of many
983 content types and variants.
986 *) Add options to enc utility to support use of zlib compression BIO.
989 *) Extend mk1mf to support importing of options and assembly language
990 files from Configure script, currently only included in VC-WIN32.
991 The assembly language rules can now optionally generate the source
992 files from the associated perl scripts.
995 *) Implement remaining functionality needed to support GOST ciphersuites.
996 Interop testing has been performed using CryptoPro implementations.
997 [Victor B. Wagner <vitus@cryptocom.ru>]
999 *) s390x assembler pack.
1002 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1006 *) Implement Opaque PRF Input TLS extension as specified in
1007 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1008 official specification yet and no extension type assignment by
1009 IANA exists, this extension (for now) will have to be explicitly
1010 enabled when building OpenSSL by providing the extension number
1011 to use. For example, specify an option
1013 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1015 to the "config" or "Configure" script to enable the extension,
1016 assuming extension number 0x9527 (which is a completely arbitrary
1017 and unofficial assignment based on the MD5 hash of the Internet
1018 Draft). Note that by doing so, you potentially lose
1019 interoperability with other TLS implementations since these might
1020 be using the same extension number for other purposes.
1022 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1023 opaque PRF input value to use in the handshake. This will create
1024 an interal copy of the length-'len' string at 'src', and will
1025 return non-zero for success.
1027 To get more control and flexibility, provide a callback function
1030 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1031 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1035 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1038 Callback function 'cb' will be called in handshakes, and is
1039 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1040 Argument 'arg' is for application purposes (the value as given to
1041 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1042 be provided to the callback function). The callback function
1043 has to return non-zero to report success: usually 1 to use opaque
1044 PRF input just if possible, or 2 to enforce use of the opaque PRF
1045 input. In the latter case, the library will abort the handshake
1046 if opaque PRF input is not successfully negotiated.
1048 Arguments 'peerinput' and 'len' given to the callback function
1049 will always be NULL and 0 in the case of a client. A server will
1050 see the client's opaque PRF input through these variables if
1051 available (NULL and 0 otherwise). Note that if the server
1052 provides an opaque PRF input, the length must be the same as the
1053 length of the client's opaque PRF input.
1055 Note that the callback function will only be called when creating
1056 a new session (session resumption can resume whatever was
1057 previously negotiated), and will not be called in SSL 2.0
1058 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1059 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1060 for applications that need to enforce opaque PRF input.
1064 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1067 [Victor B. Wagner <vitus@cryptocom.ru>]
1069 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1070 RFC4507bis. The encrypted ticket format is an encrypted encoded
1071 SSL_SESSION structure, that way new session features are automatically
1074 If a client application caches session in an SSL_SESSION structure
1075 support is transparent because tickets are now stored in the encoded
1078 The SSL_CTX structure automatically generates keys for ticket
1079 protection in servers so again support should be possible
1080 with no application modification.
1082 If a client or server wishes to disable RFC4507 support then the option
1083 SSL_OP_NO_TICKET can be set.
1085 Add a TLS extension debugging callback to allow the contents of any client
1086 or server extensions to be examined.
1088 This work was sponsored by Google.
1091 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1092 OpenSSL should now compile cleanly on gcc 4.2
1093 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1095 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1096 support including streaming MAC support: this is required for GOST
1097 ciphersuite support.
1098 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1100 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1101 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1102 to output in BER and PEM format.
1105 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1106 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1107 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1108 ENGINE support for HMAC keys which are unextractable. New -mac and
1109 -macopt options to dgst utility.
1112 *) New option -sigopt to dgst utility. Update dgst to use
1113 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1114 alternative signing paramaters such as X9.31 or PSS in the dgst
1118 *) Change ssl_cipher_apply_rule(), the internal function that does
1119 the work each time a ciphersuite string requests enabling
1120 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1121 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1122 the order of disabled ciphersuites such that those ciphersuites
1123 that most recently went from enabled to disabled not only stay
1124 in order with respect to each other, but also have higher priority
1125 than other disabled ciphersuites the next time ciphersuites are
1128 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1129 the same ciphersuites as with "HIGH" alone, but in a specific
1130 order where the PSK ciphersuites come first (since they are the
1131 most recently disabled ciphersuites when "HIGH" is parsed).
1133 Also, change ssl_create_cipher_list() (using this new
1134 funcionality) such that between otherwise identical
1135 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1139 *) Change ssl_create_cipher_list() so that it automatically
1140 arranges the ciphersuites in reasonable order before starting
1141 to process the rule string. Thus, the definition for "DEFAULT"
1142 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1143 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1144 This makes it much easier to arrive at a reasonable default order
1145 in applications for which anonymous ciphers are OK (meaning
1146 that you can't actually use DEFAULT).
1147 [Bodo Moeller; suggested by Victor Duchovni]
1149 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1150 processing) into multiple integers instead of setting
1151 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1152 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1153 (These masks as well as the individual bit definitions are hidden
1154 away into the non-exported interface ssl/ssl_locl.h, so this
1155 change to the definition of the SSL_CIPHER structure shouldn't
1156 affect applications.) This give us more bits for each of these
1157 categories, so there is no longer a need to coagulate AES128 and
1158 AES256 into a single algorithm bit, and to coagulate Camellia128
1159 and Camellia256 into a single algorithm bit, which has led to all
1162 Thus, among other things, the kludge introduced in 0.9.7m and
1163 0.9.8e for masking out AES256 independently of AES128 or masking
1164 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1166 With the change, we also introduce new ciphersuite aliases that
1167 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1171 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1172 Use the leftmost N bytes of the signature input if the input is
1173 larger than the prime q (with N being the size in bytes of q).
1176 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1177 it yet and it is largely untested.
1180 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1183 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1184 some compilers (gcc 4.2 and later) reject their use. Safestack is
1185 reimplemented. Update ASN1 to avoid use of legacy functions.
1188 *) Win32/64 targets are linked with Winsock2.
1191 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1192 to external functions. This can be used to increase CRL handling
1193 efficiency especially when CRLs are very large by (for example) storing
1194 the CRL revoked certificates in a database.
1197 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1198 new CRLs added to a directory can be used. New command line option
1199 -verify_return_error to s_client and s_server. This causes real errors
1200 to be returned by the verify callback instead of carrying on no matter
1201 what. This reflects the way a "real world" verify callback would behave.
1204 *) GOST engine, supporting several GOST algorithms and public key formats.
1205 Kindly donated by Cryptocom.
1208 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1209 partitioned by DP are handled but no indirect CRL or reason partitioning
1210 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1211 selected via a scoring technique which handles IDP and AKID in CRLs.
1214 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1215 will ultimately be used for all verify operations: this will remove the
1216 X509_STORE dependency on certificate verification and allow alternative
1217 lookup methods. X509_STORE based implementations of these two callbacks.
1220 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1221 Modify get_crl() to find a valid (unexpired) CRL if possible.
1224 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1225 this would be called X509_CRL_cmp() but that name is already used by
1226 a function that just compares CRL issuer names. Cache several CRL
1227 extensions in X509_CRL structure and cache CRLDP in X509.
1230 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1231 this maps equivalent X509_NAME structures into a consistent structure.
1232 Name comparison can then be performed rapidly using memcmp().
1235 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1239 *) Allow digests to supply their own micalg string for S/MIME type using
1240 the ctrl EVP_MD_CTRL_MICALG.
1243 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1244 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1245 ctrl. It can then customise the structure before and/or after signing
1249 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1250 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1251 to free up any added signature OIDs.
1254 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1255 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1256 digest and cipher tables. New options added to openssl utility:
1257 list-message-digest-algorithms and list-cipher-algorithms.
1260 *) Change the array representation of binary polynomials: the list
1261 of degrees of non-zero coefficients is now terminated with -1.
1262 Previously it was terminated with 0, which was also part of the
1263 value; thus, the array representation was not applicable to
1264 polynomials where t^0 has coefficient zero. This change makes
1265 the array representation useful in a more general context.
1268 *) Various modifications and fixes to SSL/TLS cipher string
1269 handling. For ECC, the code now distinguishes between fixed ECDH
1270 with RSA certificates on the one hand and with ECDSA certificates
1271 on the other hand, since these are separate ciphersuites. The
1272 unused code for Fortezza ciphersuites has been removed.
1274 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1275 (not "ECDHE"). For consistency with the code for DH
1276 certificates, use of ECDH certificates is now considered ECDH
1277 authentication, not RSA or ECDSA authentication (the latter is
1278 merely the CA's signing algorithm and not actively used in the
1281 The temporary ciphersuite alias "ECCdraft" is no longer
1282 available, and ECC ciphersuites are no longer excluded from "ALL"
1283 and "DEFAULT". The following aliases now exist for RFC 4492
1284 ciphersuites, most of these by analogy with the DH case:
1286 kECDHr - ECDH cert, signed with RSA
1287 kECDHe - ECDH cert, signed with ECDSA
1288 kECDH - ECDH cert (signed with either RSA or ECDSA)
1289 kEECDH - ephemeral ECDH
1290 ECDH - ECDH cert or ephemeral ECDH
1296 AECDH - anonymous ECDH
1297 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1301 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1302 Use correct micalg parameters depending on digest(s) in signed message.
1305 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1306 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1309 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1310 an engine to register a method. Add ENGINE lookups for methods and
1311 functional reference processing.
1314 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1315 EVP_{Sign,Verify}* which allow an application to customise the signature
1319 *) New -resign option to smime utility. This adds one or more signers
1320 to an existing PKCS#7 signedData structure. Also -md option to use an
1321 alternative message digest algorithm for signing.
1324 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1325 create PKCS7 structures containing multiple signers. Update smime
1326 application to support multiple signers.
1329 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1333 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1334 Reorganize PBE internals to lookup from a static table using NIDs,
1335 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1336 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1337 PRF which will be automatically used with PBES2.
1340 *) Replace the algorithm specific calls to generate keys in "req" with the
1344 *) Update PKCS#7 enveloped data routines to use new API. This is now
1345 supported by any public key method supporting the encrypt operation. A
1346 ctrl is added to allow the public key algorithm to examine or modify
1347 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1351 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1352 a default digest type to use. In most cases this will be SHA1 but some
1353 algorithms (such as GOST) need to specify an alternative digest. The
1354 return value indicates how strong the prefernce is 1 means optional and
1355 2 is mandatory (that is it is the only supported type). Modify
1356 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1357 use the default md. Update openssl utilities to use the default digest
1358 type for signing if it is not explicitly indicated.
1361 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1362 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1363 signing method from the key type. This effectively removes the link
1364 between digests and public key types.
1367 *) Add an OID cross reference table and utility functions. Its purpose is to
1368 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1369 rsaEncryption. This will allow some of the algorithm specific hackery
1370 needed to use the correct OID to be removed.
1373 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1374 structures for PKCS7_sign(). They are now set up by the relevant public
1378 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1381 *) Add support for key derivation (agreement) in the API, DH method and
1385 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1386 public and private key formats. As a side effect these add additional
1387 command line functionality not previously available: DSA signatures can be
1388 generated and verified using pkeyutl and DH key support and generation in
1393 [Oliver Tappe <zooey@hirschkaefer.de>]
1395 *) New make target "install_html_docs" installs HTML renditions of the
1397 [Oliver Tappe <zooey@hirschkaefer.de>]
1399 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1400 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1401 support key and parameter generation and add initial key generation
1402 functionality for RSA.
1405 *) Add functions for main EVP_PKEY_method operations. The undocumented
1406 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1407 EVP_PKEY_{encrypt,decrypt}_old.
1410 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1411 key API, doesn't do much yet.
1414 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1415 public key algorithms. New option to openssl utility:
1416 "list-public-key-algorithms" to print out info.
1419 *) Implement the Supported Elliptic Curves Extension for
1420 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1423 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1424 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1427 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1428 utilities such as rsa, dsa, dsaparam etc except they process any key
1432 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1433 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1434 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1438 *) Initial support for pluggable public key ASN1.
1439 De-spaghettify the public key ASN1 handling. Move public and private
1440 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1441 algorithm specific handling to a single module within the relevant
1442 algorithm directory. Add functions to allow (near) opaque processing
1443 of public and private key structures.
1446 *) Implement the Supported Point Formats Extension for
1447 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1450 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1451 for the psk identity [hint] and the psk callback functions to the
1452 SSL_SESSION, SSL and SSL_CTX structure.
1455 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1459 SSL_CTX_use_psk_identity_hint
1460 SSL_get_psk_identity_hint
1461 SSL_get_psk_identity
1462 SSL_use_psk_identity_hint
1464 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1466 *) Add RFC 3161 compliant time stamp request creation, response generation
1467 and response verification functionality.
1468 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1470 *) Add initial support for TLS extensions, specifically for the server_name
1471 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1472 have new members for a host name. The SSL data structure has an
1473 additional member SSL_CTX *initial_ctx so that new sessions can be
1474 stored in that context to allow for session resumption, even after the
1475 SSL has been switched to a new SSL_CTX in reaction to a client's
1476 server_name extension.
1478 New functions (subject to change):
1480 SSL_get_servername()
1481 SSL_get_servername_type()
1484 New CTRL codes and macros (subject to change):
1486 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1487 - SSL_CTX_set_tlsext_servername_callback()
1488 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1489 - SSL_CTX_set_tlsext_servername_arg()
1490 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1492 openssl s_client has a new '-servername ...' option.
1494 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1495 '-key2 ...', '-servername_fatal' (subject to change). This allows
1496 testing the HostName extension for a specific single host name ('-cert'
1497 and '-key' remain fallbacks for handshakes without HostName
1498 negotiation). If the unrecogninzed_name alert has to be sent, this by
1499 default is a warning; it becomes fatal with the '-servername_fatal'
1502 [Peter Sylvester, Remy Allais, Christophe Renou]
1504 *) Whirlpool hash implementation is added.
1507 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1508 bn(64,32). Because of instruction set limitations it doesn't have
1509 any negative impact on performance. This was done mostly in order
1510 to make it possible to share assembler modules, such as bn_mul_mont
1511 implementations, between 32- and 64-bit builds without hassle.
1514 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1515 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1519 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1520 dedicated Montgomery multiplication procedure, is introduced.
1521 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1522 "64-bit" performance on certain 32-bit targets.
1525 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1526 in SSL structures. New SSL ctrl to set maximum send fragment size.
1527 Save memory by seeting the I/O buffer sizes dynamically instead of
1528 using the maximum available value.
1531 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1532 in addition to the text details.
1535 *) Very, very preliminary EXPERIMENTAL support for printing of general
1536 ASN1 structures. This currently produces rather ugly output and doesn't
1537 handle several customised structures at all.
1540 *) Integrated support for PVK file format and some related formats such
1541 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1542 these in the 'rsa' and 'dsa' utilities.
1545 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1548 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1549 place for the (very old) "NETSCAPE" format certificates which are now
1550 handled using new ASN1 code equivalents.
1553 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1554 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1555 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1558 *) Modify CRL distribution points extension code to print out previously
1559 unsupported fields. Enhance extension setting code to allow setting of
1563 *) Add print and set support for Issuing Distribution Point CRL extension.
1566 *) Change 'Configure' script to enable Camellia by default.
1569 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1571 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1572 Thanks to Antonio Martin, Enterprise Secure Access Research and
1573 Development, Cisco Systems, Inc. for discovering this bug and
1574 preparing a fix. (CVE-2012-0050)
1577 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1579 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1580 of the Vaudenay padding oracle attack on CBC mode encryption
1581 which enables an efficient plaintext recovery attack against
1582 the OpenSSL implementation of DTLS. Their attack exploits timing
1583 differences arising during decryption processing. A research
1584 paper describing this attack can be found at:
1585 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1586 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1587 Security Group at Royal Holloway, University of London
1588 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1589 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1590 for preparing the fix. (CVE-2011-4108)
1591 [Robin Seggelmann, Michael Tuexen]
1593 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1594 [Ben Laurie, Kasper <ekasper@google.com>]
1596 *) Clear bytes used for block padding of SSL 3.0 records.
1598 [Adam Langley (Google)]
1600 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1601 Kadianakis <desnacked@gmail.com> for discovering this issue and
1602 Adam Langley for preparing the fix. (CVE-2011-4619)
1603 [Adam Langley (Google)]
1605 *) Prevent malformed RFC3779 data triggering an assertion failure.
1606 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1607 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1608 [Rob Austein <sra@hactrn.net>]
1610 *) Fix ssl_ciph.c set-up race.
1611 [Adam Langley (Google)]
1613 *) Fix spurious failures in ecdsatest.c.
1614 [Emilia Käsper (Google)]
1616 *) Fix the BIO_f_buffer() implementation (which was mixing different
1617 interpretations of the '..._len' fields).
1618 [Adam Langley (Google)]
1620 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1621 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1622 threads won't reuse the same blinding coefficients.
1624 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1625 lock to call BN_BLINDING_invert_ex, and avoids one use of
1626 BN_BLINDING_update for each BN_BLINDING structure (previously,
1627 the last update always remained unused).
1628 [Emilia Käsper (Google)]
1630 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1631 for multi-threaded use of ECDH.
1632 [Adam Langley (Google)]
1634 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1637 *) Add protection against ECDSA timing attacks as mentioned in the paper
1638 by Billy Bob Brumley and Nicola Tuveri, see:
1640 http://eprint.iacr.org/2011/232.pdf
1642 [Billy Bob Brumley and Nicola Tuveri]
1644 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1646 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1647 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1649 *) Fix bug in string printing code: if *any* escaping is enabled we must
1650 escape the escape character (backslash) or the resulting string is
1654 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1656 *) Disable code workaround for ancient and obsolete Netscape browsers
1657 and servers: an attacker can use it in a ciphersuite downgrade attack.
1658 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1661 *) Fixed J-PAKE implementation error, originally discovered by
1662 Sebastien Martini, further info and confirmation from Stefan
1663 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1666 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1668 *) Fix extension code to avoid race conditions which can result in a buffer
1669 overrun vulnerability: resumed sessions must not be modified as they can
1670 be shared by multiple threads. CVE-2010-3864
1673 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1676 *) Don't reencode certificate when calculating signature: cache and use
1677 the original encoding instead. This makes signature verification of
1678 some broken encodings work correctly.
1681 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1682 is also one of the inputs.
1683 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1685 *) Don't repeatedly append PBE algorithms to table if they already exist.
1686 Sort table on each new add. This effectively makes the table read only
1687 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1691 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1693 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1696 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1697 access or freeing data twice (CVE-2010-0742)
1698 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1700 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1701 common in certificates and some applications which only call
1702 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1706 Reduce copying into .apps and .test in makevms.com
1707 Don't try to use blank CA certificate in CA.com
1708 Allow use of C files from original directories in maketests.com
1709 [Steven M. Schweda" <sms@antinode.info>]
1711 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1713 *) When rejecting SSL/TLS records due to an incorrect version number, never
1714 update s->server with a new major version number. As of
1715 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1716 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1717 the previous behavior could result in a read attempt at NULL when
1718 receiving specific incorrect SSL/TLS records once record payload
1719 protection is active. (CVE-2010-0740)
1720 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1722 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1723 could be crashed if the relevant tables were not present (e.g. chrooted).
1724 [Tomas Hoger <thoger@redhat.com>]
1726 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1728 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1729 [Martin Olsson, Neel Mehta]
1731 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1732 accommodate for stack sorting, always a write lock!).
1735 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1736 excessive delays in the RAND_poll(): over a minute. As a workaround
1737 include a time check in the inner Heap32Next loop too.
1740 *) The code that handled flushing of data in SSL/TLS originally used the
1741 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1742 the problem outlined in PR#1949. The fix suggested there however can
1743 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1744 of Apache). So instead simplify the code to flush unconditionally.
1745 This should be fine since flushing with no data to flush is a no op.
1748 *) Handle TLS versions 2.0 and later properly and correctly use the
1749 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1750 off ancient servers have a habit of sticking around for a while...
1753 *) Modify compression code so it frees up structures without using the
1754 ex_data callbacks. This works around a problem where some applications
1755 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1756 restarting) then use compression (e.g. SSL with compression) later.
1757 This results in significant per-connection memory leaks and
1758 has caused some security issues including CVE-2008-1678 and
1762 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1763 change when encrypting or decrypting.
1766 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1767 connect and renegotiate with servers which do not support RI.
1768 Until RI is more widely deployed this option is enabled by default.
1771 *) Add "missing" ssl ctrls to clear options and mode.
1774 *) If client attempts to renegotiate and doesn't support RI respond with
1775 a no_renegotiation alert as required by RFC5746. Some renegotiating
1776 TLS clients will continue a connection gracefully when they receive
1777 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1778 waiting for a server hello which it will never receive. Now we treat a
1779 received no_renegotiation alert as a fatal error. This is because
1780 applications requesting a renegotiation might well expect it to succeed
1781 and would have no code in place to handle the server denying it so the
1782 only safe thing to do is to terminate the connection.
1785 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1786 peer supports secure renegotiation and 0 otherwise. Print out peer
1787 renegotiation support in s_client/s_server.
1790 *) Replace the highly broken and deprecated SPKAC certification method with
1791 the updated NID creation version. This should correctly handle UTF8.
1794 *) Implement RFC5746. Re-enable renegotiation but require the extension
1795 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1796 turns out to be a bad idea. It has been replaced by
1797 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1798 SSL_CTX_set_options(). This is really not recommended unless you
1799 know what you are doing.
1800 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1802 *) Fixes to stateless session resumption handling. Use initial_ctx when
1803 issuing and attempting to decrypt tickets in case it has changed during
1804 servername handling. Use a non-zero length session ID when attempting
1805 stateless session resumption: this makes it possible to determine if
1806 a resumption has occurred immediately after receiving server hello
1807 (several places in OpenSSL subtly assume this) instead of later in
1811 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1812 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1813 fixes for a few places where the return code is not checked
1815 [Julia Lawall <julia@diku.dk>]
1817 *) Add --strict-warnings option to Configure script to include devteam
1818 warnings in other configurations.
1821 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1822 makes it possible to install openssl libraries in locations which
1823 have names other than "lib", for example "/usr/lib64" which some
1825 [Steve Henson, based on patch from Jeremy Utley]
1827 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1828 X690 8.9.12 and can produce some misleading textual output of OIDs.
1829 [Steve Henson, reported by Dan Kaminsky]
1831 *) Delete MD2 from algorithm tables. This follows the recommendation in
1832 several standards that it is not used in new applications due to
1833 several cryptographic weaknesses. For binary compatibility reasons
1834 the MD2 API is still compiled in by default.
1837 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1841 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1842 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1844 [Guenter <lists@gknw.net>]
1846 *) Fix the server certificate chain building code to use X509_verify_cert(),
1847 it used to have an ad-hoc builder which was unable to cope with anything
1848 other than a simple chain.
1849 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1851 *) Don't check self signed certificate signatures in X509_verify_cert()
1852 by default (a flag can override this): it just wastes time without
1853 adding any security. As a useful side effect self signed root CAs
1854 with non-FIPS digests are now usable in FIPS mode.
1857 *) In dtls1_process_out_of_seq_message() the check if the current message
1858 is already buffered was missing. For every new message was memory
1859 allocated, allowing an attacker to perform an denial of service attack
1860 with sending out of seq handshake messages until there is no memory
1861 left. Additionally every future messege was buffered, even if the
1862 sequence number made no sense and would be part of another handshake.
1863 So only messages with sequence numbers less than 10 in advance will be
1864 buffered. (CVE-2009-1378)
1865 [Robin Seggelmann, discovered by Daniel Mentz]
1867 *) Records are buffered if they arrive with a future epoch to be
1868 processed after finishing the corresponding handshake. There is
1869 currently no limitation to this buffer allowing an attacker to perform
1870 a DOS attack with sending records with future epochs until there is no
1871 memory left. This patch adds the pqueue_size() function to detemine
1872 the size of a buffer and limits the record buffer to 100 entries.
1874 [Robin Seggelmann, discovered by Daniel Mentz]
1876 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1877 parent structure is freed. (CVE-2009-1379)
1880 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1881 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1884 [Ilya O. <vrghost@gmail.com>]
1886 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1888 *) Disable renegotiation completely - this fixes a severe security
1889 problem (CVE-2009-3555) at the cost of breaking all
1890 renegotiation. Renegotiation can be re-enabled by setting
1891 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1892 run-time. This is really not recommended unless you know what
1896 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1898 *) Don't set val to NULL when freeing up structures, it is freed up by
1899 underlying code. If sizeof(void *) > sizeof(long) this can result in
1900 zeroing past the valid field. (CVE-2009-0789)
1901 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1903 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1904 checked correctly. This would allow some invalid signed attributes to
1905 appear to verify correctly. (CVE-2009-0591)
1906 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1908 *) Reject UniversalString and BMPString types with invalid lengths. This
1909 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1910 a legal length. (CVE-2009-0590)
1913 *) Set S/MIME signing as the default purpose rather than setting it
1914 unconditionally. This allows applications to override it at the store
1918 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1919 to handle some structures.
1922 *) Improve efficiency of mem_gets: don't search whole buffer each time
1924 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1926 *) New -hex option for openssl rand.
1929 *) Print out UTF8String and NumericString when parsing ASN1.
1932 *) Support NumericString type for name components.
1935 *) Allow CC in the environment to override the automatically chosen
1936 compiler. Note that nothing is done to ensure flags work with the
1940 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1942 *) Properly check EVP_VerifyFinal() and similar return values
1944 [Ben Laurie, Bodo Moeller, Google Security Team]
1946 *) Enable TLS extensions by default.
1949 *) Allow the CHIL engine to be loaded, whether the application is
1950 multithreaded or not. (This does not release the developer from the
1951 obligation to set up the dynamic locking callbacks.)
1952 [Sander Temme <sander@temme.net>]
1954 *) Use correct exit code if there is an error in dgst command.
1955 [Steve Henson; problem pointed out by Roland Dirlewanger]
1957 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1958 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1961 *) Add experimental JPAKE support, including demo authentication in
1962 s_client and s_server.
1965 *) Set the comparison function in v3_addr_canonize().
1966 [Rob Austein <sra@hactrn.net>]
1968 *) Add support for XMPP STARTTLS in s_client.
1969 [Philip Paeps <philip@freebsd.org>]
1971 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1972 to ensure that even with this option, only ciphersuites in the
1973 server's preference list will be accepted. (Note that the option
1974 applies only when resuming a session, so the earlier behavior was
1975 just about the algorithm choice for symmetric cryptography.)
1978 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1980 *) Fix NULL pointer dereference if a DTLS server received
1981 ChangeCipherSpec as first record (CVE-2009-1386).
1984 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1985 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1988 *) The fix in 0.9.8c that supposedly got rid of unsafe
1989 double-checked locking was incomplete for RSA blinding,
1990 addressing just one layer of what turns out to have been
1991 doubly unsafe triple-checked locking.
1993 So now fix this for real by retiring the MONT_HELPER macro
1994 in crypto/rsa/rsa_eay.c.
1996 [Bodo Moeller; problem pointed out by Marius Schilder]
1998 *) Various precautionary measures:
2000 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2002 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2003 (NB: This would require knowledge of the secret session ticket key
2004 to exploit, in which case you'd be SOL either way.)
2006 - Change bn_nist.c so that it will properly handle input BIGNUMs
2007 outside the expected range.
2009 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2012 [Neel Mehta, Bodo Moeller]
2014 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2015 the load fails. Useful for distros.
2016 [Ben Laurie and the FreeBSD team]
2018 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2021 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2024 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2026 This work was sponsored by Logica.
2029 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2030 keystores. Support for SSL/TLS client authentication too.
2031 Not compiled unless enable-capieng specified to Configure.
2033 This work was sponsored by Logica.
2036 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2037 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2038 attribute creation routines such as certifcate requests and PKCS#12
2042 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2044 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2045 handshake which could lead to a cilent crash as found using the
2046 Codenomicon TLS test suite (CVE-2008-1672)
2047 [Steve Henson, Mark Cox]
2049 *) Fix double free in TLS server name extensions which could lead to
2050 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2053 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2055 Clear the error queue to ensure that error entries left from
2056 older function calls do not interfere with the correct operation.
2057 [Lutz Jaenicke, Erik de Castro Lopo]
2059 *) Remove root CA certificates of commercial CAs:
2061 The OpenSSL project does not recommend any specific CA and does not
2062 have any policy with respect to including or excluding any CA.
2063 Therefore it does not make any sense to ship an arbitrary selection
2064 of root CA certificates with the OpenSSL software.
2067 *) RSA OAEP patches to fix two separate invalid memory reads.
2068 The first one involves inputs when 'lzero' is greater than
2069 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2070 before the beginning of from). The second one involves inputs where
2071 the 'db' section contains nothing but zeroes (there is a one-byte
2072 invalid read after the end of 'db').
2073 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2075 *) Partial backport from 0.9.9-dev:
2077 Introduce bn_mul_mont (dedicated Montgomery multiplication
2078 procedure) as a candidate for BIGNUM assembler implementation.
2079 While 0.9.9-dev uses assembler for various architectures, only
2080 x86_64 is available by default here in the 0.9.8 branch, and
2081 32-bit x86 is available through a compile-time setting.
2083 To try the 32-bit x86 assembler implementation, use Configure
2084 option "enable-montasm" (which exists only for this backport).
2086 As "enable-montasm" for 32-bit x86 disclaims code stability
2087 anyway, in this constellation we activate additional code
2088 backported from 0.9.9-dev for further performance improvements,
2089 namely BN_from_montgomery_word. (To enable this otherwise,
2090 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2092 [Andy Polyakov (backport partially by Bodo Moeller)]
2094 *) Add TLS session ticket callback. This allows an application to set
2095 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2096 values. This is useful for key rollover for example where several key
2097 sets may exist with different names.
2100 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2101 This was broken until now in 0.9.8 releases, such that the only way
2102 a registered ENGINE could be used (assuming it initialises
2103 successfully on the host) was to explicitly set it as the default
2104 for the relevant algorithms. This is in contradiction with 0.9.7
2105 behaviour and the documentation. With this fix, when an ENGINE is
2106 registered into a given algorithm's table of implementations, the
2107 'uptodate' flag is reset so that auto-discovery will be used next
2108 time a new context for that algorithm attempts to select an
2110 [Ian Lister (tweaked by Geoff Thorpe)]
2112 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2113 implemention in the following ways:
2115 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2118 Lack of BER streaming support means one pass streaming processing is
2119 only supported if data is detached: setting the streaming flag is
2120 ignored for embedded content.
2122 CMS support is disabled by default and must be explicitly enabled
2123 with the enable-cms configuration option.
2126 *) Update the GMP engine glue to do direct copies between BIGNUM and
2127 mpz_t when openssl and GMP use the same limb size. Otherwise the
2128 existing "conversion via a text string export" trick is still used.
2129 [Paul Sheer <paulsheer@gmail.com>]
2131 *) Zlib compression BIO. This is a filter BIO which compressed and
2132 uncompresses any data passed through it.
2135 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2136 RFC3394 compatible AES key wrapping.
2139 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2140 sets string data without copying. X509_ALGOR_set0() and
2141 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2142 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2143 from an X509_ATTRIBUTE structure optionally checking it occurs only
2144 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2148 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2149 to get the expected BN_FLG_CONSTTIME behavior.
2150 [Bodo Moeller (Google)]
2154 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2155 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2156 - added some more tests to do_tests.pl
2157 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2158 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2159 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2160 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2161 - various changes to netware.pl to enable gcc-cross builds on Win32
2163 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2164 - various changes to fix missing prototype warnings
2165 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2166 - added AES, WHIRLPOOL and CPUID assembler code to build files
2167 - added missing AES assembler make rules to mk1mf.pl
2168 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2169 [Guenter Knauf <eflash@gmx.net>]
2171 *) Implement certificate status request TLS extension defined in RFC3546.
2172 A client can set the appropriate parameters and receive the encoded
2173 OCSP response via a callback. A server can query the supplied parameters
2174 and set the encoded OCSP response in the callback. Add simplified examples
2175 to s_client and s_server.
2178 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2180 *) Fix various bugs:
2181 + Binary incompatibility of ssl_ctx_st structure
2182 + DTLS interoperation with non-compliant servers
2183 + Don't call get_session_cb() without proposed session
2184 + Fix ia64 assembler code
2185 [Andy Polyakov, Steve Henson]
2187 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2189 *) DTLS Handshake overhaul. There were longstanding issues with
2190 OpenSSL DTLS implementation, which were making it impossible for
2191 RFC 4347 compliant client to communicate with OpenSSL server.
2192 Unfortunately just fixing these incompatibilities would "cut off"
2193 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2194 server keeps tolerating non RFC compliant syntax. The opposite is
2195 not true, 0.9.8f client can not communicate with earlier server.
2196 This update even addresses CVE-2007-4995.
2199 *) Changes to avoid need for function casts in OpenSSL: some compilers
2200 (gcc 4.2 and later) reject their use.
2201 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2204 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2205 RFC4507bis. The encrypted ticket format is an encrypted encoded
2206 SSL_SESSION structure, that way new session features are automatically
2209 If a client application caches session in an SSL_SESSION structure
2210 support is transparent because tickets are now stored in the encoded
2213 The SSL_CTX structure automatically generates keys for ticket
2214 protection in servers so again support should be possible
2215 with no application modification.
2217 If a client or server wishes to disable RFC4507 support then the option
2218 SSL_OP_NO_TICKET can be set.
2220 Add a TLS extension debugging callback to allow the contents of any client
2221 or server extensions to be examined.
2223 This work was sponsored by Google.
2226 *) Add initial support for TLS extensions, specifically for the server_name
2227 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2228 have new members for a host name. The SSL data structure has an
2229 additional member SSL_CTX *initial_ctx so that new sessions can be
2230 stored in that context to allow for session resumption, even after the
2231 SSL has been switched to a new SSL_CTX in reaction to a client's
2232 server_name extension.
2234 New functions (subject to change):
2236 SSL_get_servername()
2237 SSL_get_servername_type()
2240 New CTRL codes and macros (subject to change):
2242 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2243 - SSL_CTX_set_tlsext_servername_callback()
2244 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2245 - SSL_CTX_set_tlsext_servername_arg()
2246 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2248 openssl s_client has a new '-servername ...' option.
2250 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2251 '-key2 ...', '-servername_fatal' (subject to change). This allows
2252 testing the HostName extension for a specific single host name ('-cert'
2253 and '-key' remain fallbacks for handshakes without HostName
2254 negotiation). If the unrecogninzed_name alert has to be sent, this by
2255 default is a warning; it becomes fatal with the '-servername_fatal'
2258 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2260 *) Add AES and SSE2 assembly language support to VC++ build.
2263 *) Mitigate attack on final subtraction in Montgomery reduction.
2266 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2267 (which previously caused an internal error).
2270 *) Squeeze another 10% out of IGE mode when in != out.
2273 *) AES IGE mode speedup.
2274 [Dean Gaudet (Google)]
2276 *) Add the Korean symmetric 128-bit cipher SEED (see
2277 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2278 add SEED ciphersuites from RFC 4162:
2280 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2281 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2282 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2283 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2285 To minimize changes between patchlevels in the OpenSSL 0.9.8
2286 series, SEED remains excluded from compilation unless OpenSSL
2287 is configured with 'enable-seed'.
2288 [KISA, Bodo Moeller]
2290 *) Mitigate branch prediction attacks, which can be practical if a
2291 single processor is shared, allowing a spy process to extract
2292 information. For detailed background information, see
2293 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2294 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2295 and Necessary Software Countermeasures"). The core of the change
2296 are new versions BN_div_no_branch() and
2297 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2298 respectively, which are slower, but avoid the security-relevant
2299 conditional branches. These are automatically called by BN_div()
2300 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2301 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2302 remove a conditional branch.
2304 BN_FLG_CONSTTIME is the new name for the previous
2305 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2306 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2307 in the exponent causes BN_mod_exp_mont() to use the alternative
2308 implementation in BN_mod_exp_mont_consttime().) The old name
2309 remains as a deprecated alias.
2311 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2312 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2313 constant-time implementations for more than just exponentiation.
2314 Here too the old name is kept as a deprecated alias.
2316 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2317 the BN_BLINDING structure gets an independent copy of the
2318 modulus. This means that the previous "BIGNUM *m" argument to
2319 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2320 essentially becomes "const BIGNUM *m", although we can't actually
2321 change this in the header file before 0.9.9. It allows
2322 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2323 enable BN_FLG_CONSTTIME.
2325 [Matthew D Wood (Intel Corp)]
2327 *) In the SSL/TLS server implementation, be strict about session ID
2328 context matching (which matters if an application uses a single
2329 external cache for different purposes). Previously,
2330 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2331 set. This did ensure strict client verification, but meant that,
2332 with applications using a single external cache for quite
2333 different requirements, clients could circumvent ciphersuite
2334 restrictions for a given session ID context by starting a session
2335 in a different context.
2338 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2339 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2340 authentication-only ciphersuites.
2343 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2344 not complete and could lead to a possible single byte overflow
2345 (CVE-2007-5135) [Ben Laurie]
2347 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2349 *) Since AES128 and AES256 (and similarly Camellia128 and
2350 Camellia256) share a single mask bit in the logic of
2351 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2352 kludge to work properly if AES128 is available and AES256 isn't
2353 (or if Camellia128 is available and Camellia256 isn't).
2356 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2357 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2358 When a point or a seed is encoded in a BIT STRING, we need to
2359 prevent the removal of trailing zero bits to get the proper DER
2360 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2361 of a NamedBitList, for which trailing 0 bits need to be removed.)
2364 *) Have SSL/TLS server implementation tolerate "mismatched" record
2365 protocol version while receiving ClientHello even if the
2366 ClientHello is fragmented. (The server can't insist on the
2367 particular protocol version it has chosen before the ServerHello
2368 message has informed the client about his choice.)
2371 *) Add RFC 3779 support.
2372 [Rob Austein for ARIN, Ben Laurie]
2374 *) Load error codes if they are not already present instead of using a
2375 static variable. This allows them to be cleanly unloaded and reloaded.
2376 Improve header file function name parsing.
2379 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2380 or CAPABILITY handshake as required by RFCs.
2383 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2385 *) Introduce limits to prevent malicious keys being able to
2386 cause a denial of service. (CVE-2006-2940)
2387 [Steve Henson, Bodo Moeller]
2389 *) Fix ASN.1 parsing of certain invalid structures that can result
2390 in a denial of service. (CVE-2006-2937) [Steve Henson]
2392 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2393 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2395 *) Fix SSL client code which could crash if connecting to a
2396 malicious SSLv2 server. (CVE-2006-4343)
2397 [Tavis Ormandy and Will Drewry, Google Security Team]
2399 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2400 match only those. Before that, "AES256-SHA" would be interpreted
2401 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2402 the same strength classification in 0.9.7h) as we currently only
2403 have a single AES bit in the ciphersuite description bitmap.
2404 That change, however, also applied to ciphersuite strings such as
2405 "RC4-MD5" that intentionally matched multiple ciphersuites --
2406 namely, SSL 2.0 ciphersuites in addition to the more common ones
2407 from SSL 3.0/TLS 1.0.
2409 So we change the selection algorithm again: Naming an explicit
2410 ciphersuite selects this one ciphersuite, and any other similar
2411 ciphersuite (same bitmap) from *other* protocol versions.
2412 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2413 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2415 Since SSL 2.0 does not have any ciphersuites for which the
2416 128/256 bit distinction would be relevant, this works for now.
2417 The proper fix will be to use different bits for AES128 and
2418 AES256, which would have avoided the problems from the beginning;
2419 however, bits are scarce, so we can only do this in a new release
2420 (not just a patchlevel) when we can change the SSL_CIPHER
2421 definition to split the single 'unsigned long mask' bitmap into
2422 multiple values to extend the available space.
2426 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2428 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2429 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2431 *) Add AES IGE and biIGE modes.
2434 *) Change the Unix randomness entropy gathering to use poll() when
2435 possible instead of select(), since the latter has some
2436 undesirable limitations.
2437 [Darryl Miles via Richard Levitte and Bodo Moeller]
2439 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2440 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2441 cannot be implicitly activated as part of, e.g., the "AES" alias.
2442 However, please upgrade to OpenSSL 0.9.9[-dev] for
2443 non-experimental use of the ECC ciphersuites to get TLS extension
2444 support, which is required for curve and point format negotiation
2445 to avoid potential handshake problems.
2448 *) Disable rogue ciphersuites:
2450 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2451 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2452 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2454 The latter two were purportedly from
2455 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2458 Also deactivate the remaining ciphersuites from
2459 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2460 unofficial, and the ID has long expired.
2463 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2464 dual-core machines) and other potential thread-safety issues.
2467 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2468 versions), which is now available for royalty-free use
2469 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2470 Also, add Camellia TLS ciphersuites from RFC 4132.
2472 To minimize changes between patchlevels in the OpenSSL 0.9.8
2473 series, Camellia remains excluded from compilation unless OpenSSL
2474 is configured with 'enable-camellia'.
2477 *) Disable the padding bug check when compression is in use. The padding
2478 bug check assumes the first packet is of even length, this is not
2479 necessarily true if compresssion is enabled and can result in false
2480 positives causing handshake failure. The actual bug test is ancient
2481 code so it is hoped that implementations will either have fixed it by
2482 now or any which still have the bug do not support compression.
2485 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2487 *) When applying a cipher rule check to see if string match is an explicit
2488 cipher suite and only match that one cipher suite if it is.
2491 *) Link in manifests for VC++ if needed.
2492 [Austin Ziegler <halostatue@gmail.com>]
2494 *) Update support for ECC-based TLS ciphersuites according to
2495 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2496 TLS extensions, which are supported starting with the 0.9.9
2497 branch, not in the OpenSSL 0.9.8 branch).
2500 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2501 opaque EVP_CIPHER_CTX handling.
2504 *) Fixes and enhancements to zlib compression code. We now only use
2505 "zlib1.dll" and use the default __cdecl calling convention on Win32
2506 to conform with the standards mentioned here:
2507 http://www.zlib.net/DLL_FAQ.txt
2508 Static zlib linking now works on Windows and the new --with-zlib-include
2509 --with-zlib-lib options to Configure can be used to supply the location
2510 of the headers and library. Gracefully handle case where zlib library
2514 *) Several fixes and enhancements to the OID generation code. The old code
2515 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2516 handle numbers larger than ULONG_MAX, truncated printing and had a
2517 non standard OBJ_obj2txt() behaviour.
2520 *) Add support for building of engines under engine/ as shared libraries
2521 under VC++ build system.
2524 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2525 Hopefully, we will not see any false combination of paths any more.
2528 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2530 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2531 (part of SSL_OP_ALL). This option used to disable the
2532 countermeasure against man-in-the-middle protocol-version
2533 rollback in the SSL 2.0 server implementation, which is a bad
2534 idea. (CVE-2005-2969)
2536 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2537 for Information Security, National Institute of Advanced Industrial
2538 Science and Technology [AIST], Japan)]
2540 *) Add two function to clear and return the verify parameter flags.
2543 *) Keep cipherlists sorted in the source instead of sorting them at
2544 runtime, thus removing the need for a lock.
2547 *) Avoid some small subgroup attacks in Diffie-Hellman.
2548 [Nick Mathewson and Ben Laurie]
2550 *) Add functions for well-known primes.
2553 *) Extended Windows CE support.
2554 [Satoshi Nakamura and Andy Polyakov]
2556 *) Initialize SSL_METHOD structures at compile time instead of during
2557 runtime, thus removing the need for a lock.
2560 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2561 attempting to decrypt each encrypted key in turn. Add support to
2565 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2567 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2570 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2573 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2574 key into the same file any more.
2577 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2580 *) Add -utf8 command line and config file option to 'ca'.
2581 [Stefan <stf@udoma.org]
2583 *) Removed the macro des_crypt(), as it seems to conflict with some
2584 libraries. Use DES_crypt().
2587 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2588 involves renaming the source and generated shared-libs for
2589 both. The engines will accept the corrected or legacy ids
2590 ('ncipher' and '4758_cca' respectively) when binding. NB,
2591 this only applies when building 'shared'.
2592 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2594 *) Add attribute functions to EVP_PKEY structure. Modify
2595 PKCS12_create() to recognize a CSP name attribute and
2596 use it. Make -CSP option work again in pkcs12 utility.
2599 *) Add new functionality to the bn blinding code:
2600 - automatic re-creation of the BN_BLINDING parameters after
2601 a fixed number of uses (currently 32)
2602 - add new function for parameter creation
2603 - introduce flags to control the update behaviour of the
2604 BN_BLINDING parameters
2605 - hide BN_BLINDING structure
2606 Add a second BN_BLINDING slot to the RSA structure to improve
2607 performance when a single RSA object is shared among several
2611 *) Add support for DTLS.
2612 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2614 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2615 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2618 *) Remove buggy and incompletet DH cert support from
2619 ssl/ssl_rsa.c and ssl/s3_both.c
2622 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2623 the apps/openssl applications.
2626 *) Compile clean with "-Wall -Wmissing-prototypes
2627 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2628 DEBUG_SAFESTACK must also be set.
2631 *) Change ./Configure so that certain algorithms can be disabled by default.
2632 The new counterpiece to "no-xxx" is "enable-xxx".
2634 The patented RC5 and MDC2 algorithms will now be disabled unless
2635 "enable-rc5" and "enable-mdc2", respectively, are specified.
2637 (IDEA remains enabled despite being patented. This is because IDEA
2638 is frequently required for interoperability, and there is no license
2639 fee for non-commercial use. As before, "no-idea" can be used to
2640 avoid this algorithm.)
2644 *) Add processing of proxy certificates (see RFC 3820). This work was
2645 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2646 EGEE (Enabling Grids for E-science in Europe).
2649 *) RC4 performance overhaul on modern architectures/implementations, such
2650 as Intel P4, IA-64 and AMD64.
2653 *) New utility extract-section.pl. This can be used specify an alternative
2654 section number in a pod file instead of having to treat each file as
2655 a separate case in Makefile. This can be done by adding two lines to the
2658 =for comment openssl_section:XXX
2660 The blank line is mandatory.
2664 *) New arguments -certform, -keyform and -pass for s_client and s_server
2665 to allow alternative format key and certificate files and passphrase
2669 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2670 update associated structures and add various utility functions.
2672 Add new policy related verify parameters, include policy checking in
2673 standard verify code. Enhance 'smime' application with extra parameters
2674 to support policy checking and print out.
2677 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2678 Nehemiah processors. These extensions support AES encryption in hardware
2679 as well as RNG (though RNG support is currently disabled).
2680 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2682 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2685 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2686 [Andy Polyakov and a number of other people]
2688 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2689 implementation contributed by IBM.
2690 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2692 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2693 exponent rather than 'unsigned long'. There is a corresponding change to
2694 the new 'rsa_keygen' element of the RSA_METHOD structure.
2695 [Jelte Jansen, Geoff Thorpe]
2697 *) Functionality for creating the initial serial number file is now
2698 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2700 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2701 number file to 1, which is bound to cause problems. To avoid
2702 the problems while respecting compatibility between different 0.9.7
2703 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2704 CA.pl for serial number initialization. With the new release 0.9.8,
2705 we can fix the problem directly in the 'ca' utility.)
2708 *) Reduced header interdepencies by declaring more opaque objects in
2709 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2710 give fewer recursive includes, which could break lazy source code - so
2711 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2712 developers should define this symbol when building and using openssl to
2713 ensure they track the recommended behaviour, interfaces, [etc], but
2714 backwards-compatible behaviour prevails when this isn't defined.
2717 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2720 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2721 This will generate a random key of the appropriate length based on the
2722 cipher context. The EVP_CIPHER can provide its own random key generation
2723 routine to support keys of a specific form. This is used in the des and
2724 3des routines to generate a key of the correct parity. Update S/MIME
2725 code to use new functions and hence generate correct parity DES keys.
2726 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2727 valid (weak or incorrect parity).
2730 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2731 as looking them up. This is useful when the verified structure may contain
2732 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2733 present unless the new PKCS7_NO_CRL flag is asserted.
2736 *) Extend ASN1 oid configuration module. It now additionally accepts the
2739 shortName = some long name, 1.2.3.4
2742 *) Reimplemented the BN_CTX implementation. There is now no more static
2743 limitation on the number of variables it can handle nor the depth of the
2744 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2745 information can now expand as required, and rather than having a single
2746 static array of bignums, BN_CTX now uses a linked-list of such arrays
2747 allowing it to expand on demand whilst maintaining the usefulness of
2748 BN_CTX's "bundling".
2751 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2752 to allow all RSA operations to function using a single BN_CTX.
2755 *) Preliminary support for certificate policy evaluation and checking. This
2756 is initially intended to pass the tests outlined in "Conformance Testing
2757 of Relying Party Client Certificate Path Processing Logic" v1.07.
2760 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2761 remained unused and not that useful. A variety of other little bignum
2762 tweaks and fixes have also been made continuing on from the audit (see
2766 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2767 associated ASN1, EVP and SSL functions and old ASN1 macros.
2770 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2771 and this should never fail. So the return value from the use of
2772 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2773 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2776 *) BN_CTX_get() should return zero-valued bignums, providing the same
2777 initialised value as BN_new().
2778 [Geoff Thorpe, suggested by Ulf Möller]
2780 *) Support for inhibitAnyPolicy certificate extension.
2783 *) An audit of the BIGNUM code is underway, for which debugging code is
2784 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2785 is considered valid when processing BIGNUMs, and causes execution to
2786 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2787 further steps are taken to deliberately pollute unused data in BIGNUM
2788 structures to try and expose faulty code further on. For now, openssl will
2789 (in its default mode of operation) continue to tolerate the inconsistent
2790 forms that it has tolerated in the past, but authors and packagers should
2791 consider trying openssl and their own applications when compiled with
2792 these debugging symbols defined. It will help highlight potential bugs in
2793 their own code, and will improve the test coverage for OpenSSL itself. At
2794 some point, these tighter rules will become openssl's default to improve
2795 maintainability, though the assert()s and other overheads will remain only
2796 in debugging configurations. See bn.h for more details.
2797 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2799 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2800 that can only be obtained through BN_CTX_new() (which implicitly
2801 initialises it). The presence of this function only made it possible
2802 to overwrite an existing structure (and cause memory leaks).
2805 *) Because of the callback-based approach for implementing LHASH as a
2806 template type, lh_insert() adds opaque objects to hash-tables and
2807 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2808 to clean up those corresponding objects before destroying the hash table
2809 (and losing the object pointers). So some over-zealous constifications in
2810 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2811 objects as "const" and the lh_doall[_arg] callback wrappers are not
2812 prototyped to have "const" restrictions on the object pointers they are
2813 given (and so aren't required to cast them away any more).
2816 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2817 (speed) prefers to use its own implementation. The two implementations
2818 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2819 its object type properly exposed (MS_TM) instead of casting to/from "char
2820 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2821 aren't necessarily the greatest nomenclatures - but this is what was used
2822 internally to the implementation so I've used that for now.
2825 *) Ensure that deprecated functions do not get compiled when
2826 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2827 the self-tests were still using deprecated key-generation functions so
2828 these have been updated also.
2831 *) Reorganise PKCS#7 code to separate the digest location functionality
2832 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2833 New function PKCS7_set_digest() to set the digest type for PKCS#7
2834 digestedData type. Add additional code to correctly generate the
2835 digestedData type and add support for this type in PKCS7 initialization
2839 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2840 structure of type "other".
2843 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2844 sure the loop does correctly stop and breaking ("division by zero")
2845 modulus operations are not performed. The (pre-generated) prime
2846 table crypto/bn/bn_prime.h was already correct, but it could not be
2847 re-generated on some platforms because of the "division by zero"
2848 situation in the script.
2849 [Ralf S. Engelschall]
2851 *) Update support for ECC-based TLS ciphersuites according to
2852 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2853 SHA-1 now is only used for "small" curves (where the
2854 representation of a field element takes up to 24 bytes); for
2855 larger curves, the field element resulting from ECDH is directly
2856 used as premaster secret.
2857 [Douglas Stebila (Sun Microsystems Laboratories)]
2859 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2860 curve secp160r1 to the tests.
2861 [Douglas Stebila (Sun Microsystems Laboratories)]
2863 *) Add the possibility to load symbols globally with DSO.
2864 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2866 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2867 control of the error stack.
2870 *) Add support for STORE in ENGINE.
2873 *) Add the STORE type. The intention is to provide a common interface
2874 to certificate and key stores, be they simple file-based stores, or
2875 HSM-type store, or LDAP stores, or...
2876 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2879 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2880 pass a list of arguments to any function as well as provide a way
2881 for a function to pass data back to the caller.
2884 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2885 works like BUF_strdup() but can be used to duplicate a portion of
2886 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2890 *) Add the function sk_find_ex() which works like sk_find(), but will
2891 return an index to an element even if an exact match couldn't be
2892 found. The index is guaranteed to point at the element where the
2893 searched-for key would be inserted to preserve sorting order.
2896 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2897 takes an extra flags argument for optional functionality. Currently,
2898 the following flags are defined:
2900 OBJ_BSEARCH_VALUE_ON_NOMATCH
2901 This one gets OBJ_bsearch_ex() to return a pointer to the first
2902 element where the comparing function returns a negative or zero
2905 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2906 This one gets OBJ_bsearch_ex() to return a pointer to the first
2907 element where the comparing function returns zero. This is useful
2908 if there are more than one element where the comparing function
2912 *) Make it possible to create self-signed certificates with 'openssl ca'
2913 in such a way that the self-signed certificate becomes part of the
2914 CA database and uses the same mechanisms for serial number generation
2915 as all other certificate signing. The new flag '-selfsign' enables
2916 this functionality. Adapt CA.sh and CA.pl.in.
2919 *) Add functionality to check the public key of a certificate request
2920 against a given private. This is useful to check that a certificate
2921 request can be signed by that key (self-signing).
2924 *) Make it possible to have multiple active certificates with the same
2925 subject in the CA index file. This is done only if the keyword
2926 'unique_subject' is set to 'no' in the main CA section (default
2927 if 'CA_default') of the configuration file. The value is saved
2928 with the database itself in a separate index attribute file,
2929 named like the index file with '.attr' appended to the name.
2932 *) Generate muti valued AVAs using '+' notation in config files for
2936 *) Support for nameConstraints certificate extension.
2939 *) Support for policyConstraints certificate extension.
2942 *) Support for policyMappings certificate extension.
2945 *) Make sure the default DSA_METHOD implementation only uses its
2946 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2947 and change its own handlers to be NULL so as to remove unnecessary
2948 indirection. This lets alternative implementations fallback to the
2949 default implementation more easily.
2952 *) Support for directoryName in GeneralName related extensions
2956 *) Make it possible to link applications using Makefile.shared.
2957 Make that possible even when linking against static libraries!
2960 *) Support for single pass processing for S/MIME signing. This now
2961 means that S/MIME signing can be done from a pipe, in addition
2962 cleartext signing (multipart/signed type) is effectively streaming
2963 and the signed data does not need to be all held in memory.
2965 This is done with a new flag PKCS7_STREAM. When this flag is set
2966 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2967 is done after the data is output (and digests calculated) in
2968 SMIME_write_PKCS7().
2971 *) Add full support for -rpath/-R, both in shared libraries and
2972 applications, at least on the platforms where it's known how
2976 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2977 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2978 will now compute a table of multiples of the generator that
2979 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2980 faster (notably in the case of a single point multiplication,
2981 scalar * generator).
2982 [Nils Larsch, Bodo Moeller]
2984 *) IPv6 support for certificate extensions. The various extensions
2985 which use the IP:a.b.c.d can now take IPv6 addresses using the
2986 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2990 *) Added an ENGINE that implements RSA by performing private key
2991 exponentiations with the GMP library. The conversions to and from
2992 GMP's mpz_t format aren't optimised nor are any montgomery forms
2993 cached, and on x86 it appears OpenSSL's own performance has caught up.
2994 However there are likely to be other architectures where GMP could
2995 provide a boost. This ENGINE is not built in by default, but it can be
2996 specified at Configure time and should be accompanied by the necessary
2997 linker additions, eg;
2998 ./config -DOPENSSL_USE_GMP -lgmp
3001 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3002 testing availability of engines with "-t" - the old behaviour is
3003 produced by increasing the feature's verbosity with "-tt".
3006 *) ECDSA routines: under certain error conditions uninitialized BN objects
3007 could be freed. Solution: make sure initialization is performed early
3008 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3012 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3013 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3014 software implementations. For DSA and DH, parameter generation can
3015 also be overriden by providing the appropriate method callbacks.
3018 *) Change the "progress" mechanism used in key-generation and
3019 primality testing to functions that take a new BN_GENCB pointer in
3020 place of callback/argument pairs. The new API functions have "_ex"
3021 postfixes and the older functions are reimplemented as wrappers for
3022 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3023 declarations of the old functions to help (graceful) attempts to
3024 migrate to the new functions. Also, the new key-generation API
3025 functions operate on a caller-supplied key-structure and return
3026 success/failure rather than returning a key or NULL - this is to
3027 help make "keygen" another member function of RSA_METHOD etc.
3029 Example for using the new callback interface:
3031 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3035 BN_GENCB_set(&my_cb, my_callback, my_arg);
3037 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3038 /* For the meaning of a, b in calls to my_callback(), see the
3039 * documentation of the function that calls the callback.
3040 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3041 * my_callback should return 1 if it wants BN_is_prime_ex()
3042 * to continue, or 0 to stop.
3047 *) Change the ZLIB compression method to be stateful, and make it
3048 available to TLS with the number defined in
3049 draft-ietf-tls-compression-04.txt.
3052 *) Add the ASN.1 structures and functions for CertificatePair, which
3053 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3055 CertificatePair ::= SEQUENCE {
3056 forward [0] Certificate OPTIONAL,
3057 reverse [1] Certificate OPTIONAL,
3058 -- at least one of the pair shall be present -- }
3060 Also implement the PEM functions to read and write certificate
3061 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3063 This needed to be defined, mostly for the sake of the LDAP
3064 attribute crossCertificatePair, but may prove useful elsewhere as
3068 *) Make it possible to inhibit symlinking of shared libraries in
3069 Makefile.shared, for Cygwin's sake.
3072 *) Extend the BIGNUM API by creating a function
3073 void BN_set_negative(BIGNUM *a, int neg);
3074 and a macro that behave like
3075 int BN_is_negative(const BIGNUM *a);
3077 to avoid the need to access 'a->neg' directly in applications.
3080 *) Implement fast modular reduction for pseudo-Mersenne primes
3081 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3082 EC_GROUP_new_curve_GFp() will now automatically use this
3084 [Nils Larsch <nla@trustcenter.de>]
3086 *) Add new lock type (CRYPTO_LOCK_BN).
3089 *) Change the ENGINE framework to automatically load engines
3090 dynamically from specific directories unless they could be
3091 found to already be built in or loaded. Move all the
3092 current engines except for the cryptodev one to a new
3094 The engines in engines/ are built as shared libraries if
3095 the "shared" options was given to ./Configure or ./config.
3096 Otherwise, they are inserted in libcrypto.a.
3097 /usr/local/ssl/engines is the default directory for dynamic
3098 engines, but that can be overriden at configure time through
3099 the usual use of --prefix and/or --openssldir, and at run
3100 time with the environment variable OPENSSL_ENGINES.
3101 [Geoff Thorpe and Richard Levitte]
3103 *) Add Makefile.shared, a helper makefile to build shared
3104 libraries. Addapt Makefile.org.
3107 *) Add version info to Win32 DLLs.
3108 [Peter 'Luna' Runestig" <peter@runestig.com>]
3110 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3111 can be added using this API to created arbitrary PKCS#12
3112 files while avoiding the low level API.
3114 New options to PKCS12_create(), key or cert can be NULL and
3115 will then be omitted from the output file. The encryption
3116 algorithm NIDs can be set to -1 for no encryption, the mac
3117 iteration count can be set to 0 to omit the mac.
3119 Enhance pkcs12 utility by making the -nokeys and -nocerts
3120 options work when creating a PKCS#12 file. New option -nomac
3121 to omit the mac, NONE can be set for an encryption algorithm.
3122 New code is modified to use the enhanced PKCS12_create()
3123 instead of the low level API.
3126 *) Extend ASN1 encoder to support indefinite length constructed
3127 encoding. This can output sequences tags and octet strings in
3128 this form. Modify pk7_asn1.c to support indefinite length
3129 encoding. This is experimental and needs additional code to
3130 be useful, such as an ASN1 bio and some enhanced streaming
3133 Extend template encode functionality so that tagging is passed
3134 down to the template encoder.
3137 *) Let 'openssl req' fail if an argument to '-newkey' is not
3138 recognized instead of using RSA as a default.
3141 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3142 As these are not official, they are not included in "ALL";
3143 the "ECCdraft" ciphersuite group alias can be used to select them.
3144 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3146 *) Add ECDH engine support.
3147 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3149 *) Add ECDH in new directory crypto/ecdh/.
3150 [Douglas Stebila (Sun Microsystems Laboratories)]
3152 *) Let BN_rand_range() abort with an error after 100 iterations
3153 without success (which indicates a broken PRNG).
3156 *) Change BN_mod_sqrt() so that it verifies that the input value
3157 is really the square of the return value. (Previously,
3158 BN_mod_sqrt would show GIGO behaviour.)
3161 *) Add named elliptic curves over binary fields from X9.62, SECG,
3162 and WAP/WTLS; add OIDs that were still missing.
3164 [Sheueling Chang Shantz and Douglas Stebila
3165 (Sun Microsystems Laboratories)]
3167 *) Extend the EC library for elliptic curves over binary fields
3168 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3171 EC_GF2m_simple_method
3175 EC_GROUP_new_curve_GF2m
3176 EC_GROUP_set_curve_GF2m
3177 EC_GROUP_get_curve_GF2m
3178 EC_POINT_set_affine_coordinates_GF2m
3179 EC_POINT_get_affine_coordinates_GF2m
3180 EC_POINT_set_compressed_coordinates_GF2m
3182 Point compression for binary fields is disabled by default for
3183 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3186 As binary polynomials are represented as BIGNUMs, various members
3187 of the EC_GROUP and EC_POINT data structures can be shared
3188 between the implementations for prime fields and binary fields;
3189 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3190 are essentially identical to their ..._GFp counterparts.
3191 (For simplicity, the '..._GFp' prefix has been dropped from
3192 various internal method names.)
3194 An internal 'field_div' method (similar to 'field_mul' and
3195 'field_sqr') has been added; this is used only for binary fields.
3197 [Sheueling Chang Shantz and Douglas Stebila
3198 (Sun Microsystems Laboratories)]
3200 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3201 through methods ('mul', 'precompute_mult').
3203 The generic implementations (now internally called 'ec_wNAF_mul'
3204 and 'ec_wNAF_precomputed_mult') remain the default if these
3205 methods are undefined.
3207 [Sheueling Chang Shantz and Douglas Stebila
3208 (Sun Microsystems Laboratories)]
3210 *) New function EC_GROUP_get_degree, which is defined through
3211 EC_METHOD. For curves over prime fields, this returns the bit
3212 length of the modulus.
3214 [Sheueling Chang Shantz and Douglas Stebila
3215 (Sun Microsystems Laboratories)]
3217 *) New functions EC_GROUP_dup, EC_POINT_dup.
3218 (These simply call ..._new and ..._copy).
3220 [Sheueling Chang Shantz and Douglas Stebila
3221 (Sun Microsystems Laboratories)]
3223 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3224 Polynomials are represented as BIGNUMs (where the sign bit is not
3225 used) in the following functions [macros]:
3228 BN_GF2m_sub [= BN_GF2m_add]
3229 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3230 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3231 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3233 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3234 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3235 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3236 BN_GF2m_cmp [= BN_ucmp]
3238 (Note that only the 'mod' functions are actually for fields GF(2^m).
3239 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3241 For some functions, an the irreducible polynomial defining a
3242 field can be given as an 'unsigned int[]' with strictly
3243 decreasing elements giving the indices of those bits that are set;
3244 i.e., p[] represents the polynomial
3245 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3247 p[0] > p[1] > ... > p[k] = 0.
3248 This applies to the following functions:
3253 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3254 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3256 BN_GF2m_mod_sqrt_arr
3257 BN_GF2m_mod_solve_quad_arr
3261 Conversion can be performed by the following functions:
3266 bntest.c has additional tests for binary polynomial arithmetic.
3268 Two implementations for BN_GF2m_mod_div() are available.
3269 The default algorithm simply uses BN_GF2m_mod_inv() and
3270 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3271 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3272 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3274 [Sheueling Chang Shantz and Douglas Stebila
3275 (Sun Microsystems Laboratories)]
3277 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3278 functionality is disabled at compile-time.
3279 [Douglas Stebila <douglas.stebila@sun.com>]
3281 *) Change default behaviour of 'openssl asn1parse' so that more
3282 information is visible when viewing, e.g., a certificate:
3284 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3285 mode the content of non-printable OCTET STRINGs is output in a
3286 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3287 avoid the appearance of a printable string.
3288 [Nils Larsch <nla@trustcenter.de>]
3290 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3292 EC_GROUP_set_asn1_flag()
3293 EC_GROUP_get_asn1_flag()
3294 EC_GROUP_set_point_conversion_form()
3295 EC_GROUP_get_point_conversion_form()
3296 These control ASN1 encoding details:
3297 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3298 has been set to OPENSSL_EC_NAMED_CURVE.
3299 - Points are encoded in uncompressed form by default; options for
3300 asn1_for are as for point2oct, namely
3301 POINT_CONVERSION_COMPRESSED
3302 POINT_CONVERSION_UNCOMPRESSED
3303 POINT_CONVERSION_HYBRID
3305 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3308 EC_GROUP_get0_seed()
3309 EC_GROUP_get_seed_len()
3310 This is used only for ASN1 purposes (so far).
3311 [Nils Larsch <nla@trustcenter.de>]
3313 *) Add 'field_type' member to EC_METHOD, which holds the NID
3314 of the appropriate field type OID. The new function
3315 EC_METHOD_get_field_type() returns this value.
3316 [Nils Larsch <nla@trustcenter.de>]
3321 EC_POINT_point2hex()
3322 EC_POINT_hex2point()
3323 providing useful interfaces to EC_POINT_point2oct() and
3324 EC_POINT_oct2point().
3325 [Nils Larsch <nla@trustcenter.de>]
3327 *) Change internals of the EC library so that the functions
3328 EC_GROUP_set_generator()
3329 EC_GROUP_get_generator()
3330 EC_GROUP_get_order()
3331 EC_GROUP_get_cofactor()
3332 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3333 to methods, which would lead to unnecessary code duplication when
3334 adding different types of curves.
3335 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3337 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3338 arithmetic, and such that modified wNAFs are generated
3339 (which avoid length expansion in many cases).
3342 *) Add a function EC_GROUP_check_discriminant() (defined via
3343 EC_METHOD) that verifies that the curve discriminant is non-zero.
3345 Add a function EC_GROUP_check() that makes some sanity tests
3346 on a EC_GROUP, its generator and order. This includes
3347 EC_GROUP_check_discriminant().
3348 [Nils Larsch <nla@trustcenter.de>]
3350 *) Add ECDSA in new directory crypto/ecdsa/.
3352 Add applications 'openssl ecparam' and 'openssl ecdsa'
3353 (these are based on 'openssl dsaparam' and 'openssl dsa').
3355 ECDSA support is also included in various other files across the
3356 library. Most notably,
3357 - 'openssl req' now has a '-newkey ecdsa:file' option;
3358 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3359 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3360 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3361 them suitable for ECDSA where domain parameters must be
3362 extracted before the specific public key;
3363 - ECDSA engine support has been added.
3364 [Nils Larsch <nla@trustcenter.de>]
3366 *) Include some named elliptic curves, and add OIDs from X9.62,
3367 SECG, and WAP/WTLS. Each curve can be obtained from the new
3369 EC_GROUP_new_by_curve_name(),
3370 and the list of available named curves can be obtained with
3371 EC_get_builtin_curves().
3372 Also add a 'curve_name' member to EC_GROUP objects, which can be
3374 EC_GROUP_set_curve_name()
3375 EC_GROUP_get_curve_name()
3376 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3378 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3379 was actually never needed) and in BN_mul(). The removal in BN_mul()
3380 required a small change in bn_mul_part_recursive() and the addition
3381 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3382 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3383 bn_sub_words() and bn_add_words() except they take arrays with
3387 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3389 *) Cleanse PEM buffers before freeing them since they may contain
3391 [Benjamin Bennett <ben@psc.edu>]
3393 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3394 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3395 authentication-only ciphersuites.
3398 *) Since AES128 and AES256 share a single mask bit in the logic of
3399 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3400 kludge to work properly if AES128 is available and AES256 isn't.
3403 *) Expand security boundary to match 1.1.1 module.
3406 *) Remove redundant features: hash file source, editing of test vectors
3407 modify fipsld to use external fips_premain.c signature.
3410 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3411 run algorithm test programs.
3414 *) Make algorithm test programs more tolerant of whitespace.
3417 *) Have SSL/TLS server implementation tolerate "mismatched" record
3418 protocol version while receiving ClientHello even if the
3419 ClientHello is fragmented. (The server can't insist on the
3420 particular protocol version it has chosen before the ServerHello
3421 message has informed the client about his choice.)
3424 *) Load error codes if they are not already present instead of using a
3425 static variable. This allows them to be cleanly unloaded and reloaded.
3428 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3430 *) Introduce limits to prevent malicious keys being able to
3431 cause a denial of service. (CVE-2006-2940)
3432 [Steve Henson, Bodo Moeller]
3434 *) Fix ASN.1 parsing of certain invalid structures that can result
3435 in a denial of service. (CVE-2006-2937) [Steve Henson]
3437 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3438 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3440 *) Fix SSL client code which could crash if connecting to a
3441 malicious SSLv2 server. (CVE-2006-4343)
3442 [Tavis Ormandy and Will Drewry, Google Security Team]
3444 *) Change ciphersuite string processing so that an explicit
3445 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3446 will no longer include "AES128-SHA"), and any other similar
3447 ciphersuite (same bitmap) from *other* protocol versions (so that
3448 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3449 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3450 changes from 0.9.8b and 0.9.8d.
3453 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3455 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3456 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3458 *) Change the Unix randomness entropy gathering to use poll() when
3459 possible instead of select(), since the latter has some
3460 undesirable limitations.
3461 [Darryl Miles via Richard Levitte and Bodo Moeller]
3463 *) Disable rogue ciphersuites:
3465 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3466 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3467 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3469 The latter two were purportedly from
3470 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3473 Also deactive the remaining ciphersuites from
3474 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3475 unofficial, and the ID has long expired.
3478 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3479 dual-core machines) and other potential thread-safety issues.
3482 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3484 *) Adapt fipsld and the build system to link against the validated FIPS
3485 module in FIPS mode.
3488 *) Fixes for VC++ 2005 build under Windows.
3491 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3492 from a Windows bash shell such as MSYS. It is autodetected from the
3493 "config" script when run from a VC++ environment. Modify standard VC++
3494 build to use fipscanister.o from the GNU make build.
3497 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3499 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3500 The value now differs depending on if you build for FIPS or not.
3501 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3502 safely run with a non-FIPSed libcrypto, as it may crash because of
3503 the difference induced by this change.
3506 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3508 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3509 (part of SSL_OP_ALL). This option used to disable the
3510 countermeasure against man-in-the-middle protocol-version
3511 rollback in the SSL 2.0 server implementation, which is a bad
3512 idea. (CVE-2005-2969)
3514 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3515 for Information Security, National Institute of Advanced Industrial
3516 Science and Technology [AIST], Japan)]
3518 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3519 mainly for FIPS compliance and not fully integrated at this stage.
3522 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3523 the exponentiation using a fixed-length exponent. (Otherwise,
3524 the information leaked through timing could expose the secret key
3525 after many signatures; cf. Bleichenbacher's attack on DSA with
3529 *) Make a new fixed-window mod_exp implementation the default for
3530 RSA, DSA, and DH private-key operations so that the sequence of
3531 squares and multiplies and the memory access pattern are
3532 independent of the particular secret key. This will mitigate
3533 cache-timing and potential related attacks.
3535 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3536 and this is automatically used by BN_mod_exp_mont() if the new flag
3537 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3538 will use this BN flag for private exponents unless the flag
3539 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3540 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3542 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3544 *) Change the client implementation for SSLv23_method() and
3545 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3546 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3547 (Previously, the SSL 2.0 backwards compatible Client Hello
3548 message format would be used even with SSL_OP_NO_SSLv2.)
3551 *) Add support for smime-type MIME parameter in S/MIME messages which some
3555 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3556 a threadsafe manner. Modify rsa code to use new function and add calls
3557 to dsa and dh code (which had race conditions before).
3560 *) Include the fixed error library code in the C error file definitions
3561 instead of fixing them up at runtime. This keeps the error code
3562 structures constant.
3565 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3567 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3570 *) Fixes for newer kerberos headers. NB: the casts are needed because
3571 the 'length' field is signed on one version and unsigned on another
3572 with no (?) obvious way to tell the difference, without these VC++
3573 complains. Also the "definition" of FAR (blank) is no longer included
3574 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3575 some needed definitions.
3578 *) Undo Cygwin change.
3581 *) Added support for proxy certificates according to RFC 3820.
3582 Because they may be a security thread to unaware applications,
3583 they must be explicitely allowed in run-time. See
3584 docs/HOWTO/proxy_certificates.txt for further information.
3587 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3589 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3590 server and client random values. Previously
3591 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3592 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3594 This change has negligible security impact because:
3596 1. Server and client random values still have 24 bytes of pseudo random
3599 2. Server and client random values are sent in the clear in the initial
3602 3. The master secret is derived using the premaster secret (48 bytes in
3603 size for static RSA ciphersuites) as well as client server and random
3606 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3609 [Stephen Henson, reported by UK NISCC]
3611 *) Use Windows randomness collection on Cygwin.
3614 *) Fix hang in EGD/PRNGD query when communication socket is closed
3615 prematurely by EGD/PRNGD.
3616 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3618 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3621 *) Back-port of selected performance improvements from development
3622 branch, as well as improved support for PowerPC platforms.
3625 *) Add lots of checks for memory allocation failure, error codes to indicate
3626 failure and freeing up memory if a failure occurs.
3627 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3629 *) Add new -passin argument to dgst.
3632 *) Perform some character comparisons of different types in X509_NAME_cmp:
3633 this is needed for some certificates that reencode DNs into UTF8Strings
3634 (in violation of RFC3280) and can't or wont issue name rollover
3638 *) Make an explicit check during certificate validation to see that
3639 the CA setting in each certificate on the chain is correct. As a
3640 side effect always do the following basic checks on extensions,
3641 not just when there's an associated purpose to the check:
3643 - if there is an unhandled critical extension (unless the user
3644 has chosen to ignore this fault)
3645 - if the path length has been exceeded (if one is set at all)
3646 - that certain extensions fit the associated purpose (if one has
3650 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3652 *) Avoid a race condition when CRLs are checked in a multi threaded
3653 environment. This would happen due to the reordering of the revoked
3654 entries during signature checking and serial number lookup. Now the
3655 encoding is cached and the serial number sort performed under a lock.
3656 Add new STACK function sk_is_sorted().
3659 *) Add Delta CRL to the extension code.
3662 *) Various fixes to s3_pkt.c so alerts are sent properly.
3663 [David Holmes <d.holmes@f5.com>]
3665 *) Reduce the chances of duplicate issuer name and serial numbers (in
3666 violation of RFC3280) using the OpenSSL certificate creation utilities.
3667 This is done by creating a random 64 bit value for the initial serial
3668 number when a serial number file is created or when a self signed
3669 certificate is created using 'openssl req -x509'. The initial serial
3670 number file is created using 'openssl x509 -next_serial' in CA.pl
3671 rather than being initialized to 1.
3674 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3676 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3677 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3678 [Joe Orton, Steve Henson]
3680 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3682 [Joe Orton, Steve Henson]
3684 *) Make it possible to have multiple active certificates with the same
3685 subject in the CA index file. This is done only if the keyword
3686 'unique_subject' is set to 'no' in the main CA section (default
3687 if 'CA_default') of the configuration file. The value is saved
3688 with the database itself in a separate index attribute file,
3689 named like the index file with '.attr' appended to the name.
3692 *) X509 verify fixes. Disable broken certificate workarounds when
3693 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3694 keyUsage extension present. Don't accept CRLs with unhandled critical
3695 extensions: since verify currently doesn't process CRL extensions this
3696 rejects a CRL with *any* critical extensions. Add new verify error codes
3700 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3701 A clarification of RFC2560 will require the use of OCTET STRINGs and
3702 some implementations cannot handle the current raw format. Since OpenSSL
3703 copies and compares OCSP nonces as opaque blobs without any attempt at
3704 parsing them this should not create any compatibility issues.
3707 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3708 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3709 this HMAC (and other) operations are several times slower than OpenSSL
3713 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3714 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3716 *) Use the correct content when signing type "other".
3719 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3721 *) Fix various bugs revealed by running the NISCC test suite:
3723 Stop out of bounds reads in the ASN1 code when presented with
3724 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3726 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3728 If verify callback ignores invalid public key errors don't try to check
3729 certificate signature with the NULL public key.
3733 *) New -ignore_err option in ocsp application to stop the server
3734 exiting on the first error in a request.
3737 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3738 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3742 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3743 extra data after the compression methods not only for TLS 1.0
3744 but also for SSL 3.0 (as required by the specification).
3745 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3747 *) Change X509_certificate_type() to mark the key as exported/exportable
3748 when it's 512 *bits* long, not 512 bytes.
3751 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3752 blocks during encryption.
3755 *) Various fixes to base64 BIO and non blocking I/O. On write
3756 flushes were not handled properly if the BIO retried. On read
3757 data was not being buffered properly and had various logic bugs.
3758 This also affects blocking I/O when the data being decoded is a
3762 *) Various S/MIME bugfixes and compatibility changes:
3763 output correct application/pkcs7 MIME type if
3764 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3765 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3766 of files as .eml work). Correctly handle very long lines in MIME
3770 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3772 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3773 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3774 a protocol version number mismatch like a decryption error
3775 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3778 *) Turn on RSA blinding by default in the default implementation
3779 to avoid a timing attack. Applications that don't want it can call
3780 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3781 They would be ill-advised to do so in most cases.
3782 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3784 *) Change RSA blinding code so that it works when the PRNG is not
3785 seeded (in this case, the secret RSA exponent is abused as
3786 an unpredictable seed -- if it is not unpredictable, there
3787 is no point in blinding anyway). Make RSA blinding thread-safe
3788 by remembering the creator's thread ID in rsa->blinding and
3789 having all other threads use local one-time blinding factors
3790 (this requires more computation than sharing rsa->blinding, but
3791 avoids excessive locking; and if an RSA object is not shared
3792 between threads, blinding will still be very fast).
3795 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3796 ENGINE as defaults for all supported algorithms irrespective of
3797 the 'flags' parameter. 'flags' is now honoured, so applications
3798 should make sure they are passing it correctly.
3801 *) Target "mingw" now allows native Windows code to be generated in
3802 the Cygwin environment as well as with the MinGW compiler.
3805 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3807 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3808 via timing by performing a MAC computation even if incorrrect
3809 block cipher padding has been found. This is a countermeasure
3810 against active attacks where the attacker has to distinguish
3811 between bad padding and a MAC verification error. (CVE-2003-0078)
3813 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3814 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3815 Martin Vuagnoux (EPFL, Ilion)]
3817 *) Make the no-err option work as intended. The intention with no-err
3818 is not to have the whole error stack handling routines removed from
3819 libcrypto, it's only intended to remove all the function name and
3820 reason texts, thereby removing some of the footprint that may not
3821 be interesting if those errors aren't displayed anyway.
3823 NOTE: it's still possible for any application or module to have it's
3824 own set of error texts inserted. The routines are there, just not
3825 used by default when no-err is given.
3828 *) Add support for FreeBSD on IA64.
3829 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3831 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3832 Kerberos function mit_des_cbc_cksum(). Before this change,
3833 the value returned by DES_cbc_cksum() was like the one from
3834 mit_des_cbc_cksum(), except the bytes were swapped.
3835 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3837 *) Allow an application to disable the automatic SSL chain building.
3838 Before this a rather primitive chain build was always performed in
3839 ssl3_output_cert_chain(): an application had no way to send the
3840 correct chain if the automatic operation produced an incorrect result.
3842 Now the chain builder is disabled if either:
3844 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3846 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3848 The reasoning behind this is that an application would not want the
3849 auto chain building to take place if extra chain certificates are
3850 present and it might also want a means of sending no additional
3851 certificates (for example the chain has two certificates and the
3855 *) Add the possibility to build without the ENGINE framework.
3856 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3858 *) Under Win32 gmtime() can return NULL: check return value in
3859 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3862 *) DSA routines: under certain error conditions uninitialized BN objects
3863 could be freed. Solution: make sure initialization is performed early
3864 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3865 Nils Larsch <nla@trustcenter.de> via PR#459)
3868 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3869 checked on reconnect on the client side, therefore session resumption
3870 could still fail with a "ssl session id is different" error. This
3871 behaviour is masked when SSL_OP_ALL is used due to
3872 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3873 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3874 followup to PR #377.
3877 *) IA-32 assembler support enhancements: unified ELF targets, support
3878 for SCO/Caldera platforms, fix for Cygwin shared build.
3881 *) Add support for FreeBSD on sparc64. As a consequence, support for
3882 FreeBSD on non-x86 processors is separate from x86 processors on
3883 the config script, much like the NetBSD support.
3884 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3886 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3888 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3891 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3892 code (06) was taken as the first octet of the session ID and the last
3893 octet was ignored consequently. As a result SSLv2 client side session
3894 caching could not have worked due to the session ID mismatch between
3896 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3900 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3901 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3905 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3906 seems that in spite of existing for more than a year, many application
3907 author have done nothing to provide the necessary callbacks, which
3908 means that this particular engine will not work properly anywhere.
3909 This is a very unfortunate situation which forces us, in the name
3910 of usability, to give the hw_ncipher.c a static lock, which is part
3912 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3913 appear in 0.9.8 or later. We EXPECT application authors to have
3914 dealt properly with this when 0.9.8 is released (unless we actually
3915 make such changes in the libcrypto locking code that changes will
3916 have to be made anyway).
3919 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3920 octets have been read, EOF or an error occurs. Without this change
3921 some truncated ASN1 structures will not produce an error.
3924 *) Disable Heimdal support, since it hasn't been fully implemented.
3925 Still give the possibility to force the use of Heimdal, but with
3926 warnings and a request that patches get sent to openssl-dev.
3929 *) Add the VC-CE target, introduce the WINCE sysname, and add
3930 INSTALL.WCE and appropriate conditionals to make it build.
3931 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3933 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3934 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3935 edit numbers of the version.
3936 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3938 *) Introduce safe string copy and catenation functions
3939 (BUF_strlcpy() and BUF_strlcat()).
3940 [Ben Laurie (CHATS) and Richard Levitte]
3942 *) Avoid using fixed-size buffers for one-line DNs.
3943 [Ben Laurie (CHATS)]
3945 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3946 resizing buffers containing secrets, and use where appropriate.
3947 [Ben Laurie (CHATS)]
3949 *) Avoid using fixed size buffers for configuration file location.
3950 [Ben Laurie (CHATS)]
3952 *) Avoid filename truncation for various CA files.
3953 [Ben Laurie (CHATS)]
3955 *) Use sizeof in preference to magic numbers.
3956 [Ben Laurie (CHATS)]
3958 *) Avoid filename truncation in cert requests.
3959 [Ben Laurie (CHATS)]
3961 *) Add assertions to check for (supposedly impossible) buffer
3963 [Ben Laurie (CHATS)]
3965 *) Don't cache truncated DNS entries in the local cache (this could
3966 potentially lead to a spoofing attack).
3967 [Ben Laurie (CHATS)]
3969 *) Fix various buffers to be large enough for hex/decimal
3970 representations in a platform independent manner.
3971 [Ben Laurie (CHATS)]
3973 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3974 resizing buffers containing secrets, and use where appropriate.
3975 [Ben Laurie (CHATS)]
3977 *) Add BIO_indent() to avoid much slightly worrying code to do
3979 [Ben Laurie (CHATS)]
3981 *) Convert sprintf()/BIO_puts() to BIO_printf().
3982 [Ben Laurie (CHATS)]
3984 *) buffer_gets() could terminate with the buffer only half
3986 [Ben Laurie (CHATS)]
3988 *) Add assertions to prevent user-supplied crypto functions from
3989 overflowing internal buffers by having large block sizes, etc.
3990 [Ben Laurie (CHATS)]
3992 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3994 [Ben Laurie (CHATS)]
3996 *) Eliminate unused copy of key in RC4.
3997 [Ben Laurie (CHATS)]
3999 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4000 [Ben Laurie (CHATS)]
4002 *) Fix off-by-one error in EGD path.
4003 [Ben Laurie (CHATS)]
4005 *) If RANDFILE path is too long, ignore instead of truncating.
4006 [Ben Laurie (CHATS)]
4008 *) Eliminate unused and incorrectly sized X.509 structure
4010 [Ben Laurie (CHATS)]
4012 *) Eliminate unused and dangerous function knumber().
4013 [Ben Laurie (CHATS)]
4015 *) Eliminate unused and dangerous structure, KSSL_ERR.
4016 [Ben Laurie (CHATS)]
4018 *) Protect against overlong session ID context length in an encoded
4019 session object. Since these are local, this does not appear to be
4021 [Ben Laurie (CHATS)]
4023 *) Change from security patch (see 0.9.6e below) that did not affect
4024 the 0.9.6 release series:
4026 Remote buffer overflow in SSL3 protocol - an attacker could
4027 supply an oversized master key in Kerberos-enabled versions.
4029 [Ben Laurie (CHATS)]
4031 *) Change the SSL kerb5 codes to match RFC 2712.
4034 *) Make -nameopt work fully for req and add -reqopt switch.
4035 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4037 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4038 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4040 *) Make sure tests can be performed even if the corresponding algorithms
4041 have been removed entirely. This was also the last step to make
4042 OpenSSL compilable with DJGPP under all reasonable conditions.
4043 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4045 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4046 to allow version independent disabling of normally unselected ciphers,
4047 which may be activated as a side-effect of selecting a single cipher.
4049 (E.g., cipher list string "RSA" enables ciphersuites that are left
4050 out of "ALL" because they do not provide symmetric encryption.
4051 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4052 [Lutz Jaenicke, Bodo Moeller]
4054 *) Add appropriate support for separate platform-dependent build
4055 directories. The recommended way to make a platform-dependent
4056 build directory is the following (tested on Linux), maybe with
4059 # Place yourself outside of the OpenSSL source tree. In
4060 # this example, the environment variable OPENSSL_SOURCE
4061 # is assumed to contain the absolute OpenSSL source directory.
4062 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4063 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4064 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4065 mkdir -p `dirname $F`
4066 ln -s $OPENSSL_SOURCE/$F $F
4069 To be absolutely sure not to disturb the source tree, a "make clean"
4070 is a good thing. If it isn't successfull, don't worry about it,
4071 it probably means the source directory is very clean.
4074 *) Make sure any ENGINE control commands make local copies of string
4075 pointers passed to them whenever necessary. Otherwise it is possible
4076 the caller may have overwritten (or deallocated) the original string
4077 data when a later ENGINE operation tries to use the stored values.
4078 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4080 *) Improve diagnostics in file reading and command-line digests.
4081 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4083 *) Add AES modes CFB and OFB to the object database. Correct an
4084 error in AES-CFB decryption.
4087 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4088 allows existing EVP_CIPHER_CTX structures to be reused after
4089 calling EVP_*Final(). This behaviour is used by encryption
4090 BIOs and some applications. This has the side effect that
4091 applications must explicitly clean up cipher contexts with
4092 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4095 *) Check the values of dna and dnb in bn_mul_recursive before calling
4096 bn_mul_comba (a non zero value means the a or b arrays do not contain
4097 n2 elements) and fallback to bn_mul_normal if either is not zero.
4100 *) Fix escaping of non-ASCII characters when using the -subj option
4101 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4104 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4105 form for "surname", serialNumber has no short form.
4106 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4107 therefore remove "mail" short name for "internet 7".
4108 The OID for unique identifiers in X509 certificates is
4109 x500UniqueIdentifier, not uniqueIdentifier.
4110 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4113 *) Add an "init" command to the ENGINE config module and auto initialize
4114 ENGINEs. Without any "init" command the ENGINE will be initialized
4115 after all ctrl commands have been executed on it. If init=1 the
4116 ENGINE is initailized at that point (ctrls before that point are run
4117 on the uninitialized ENGINE and after on the initialized one). If
4118 init=0 then the ENGINE will not be iniatialized at all.
4121 *) Fix the 'app_verify_callback' interface so that the user-defined
4122 argument is actually passed to the callback: In the
4123 SSL_CTX_set_cert_verify_callback() prototype, the callback
4124 declaration has been changed from
4127 int (*cb)(X509_STORE_CTX *,void *);
4128 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4129 i=s->ctx->app_verify_callback(&ctx)
4130 has been changed into
4131 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4133 To update applications using SSL_CTX_set_cert_verify_callback(),
4134 a dummy argument can be added to their callback functions.
4135 [D. K. Smetters <smetters@parc.xerox.com>]
4137 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4138 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4140 *) Add and OPENSSL_LOAD_CONF define which will cause
4141 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4142 This allows older applications to transparently support certain
4143 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4144 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4145 load the config file and OPENSSL_add_all_algorithms_conf() which will
4146 always load it have also been added.
4149 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4150 Adjust NIDs and EVP layer.
4151 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4153 *) Config modules support in openssl utility.
4155 Most commands now load modules from the config file,
4156 though in a few (such as version) this isn't done
4157 because it couldn't be used for anything.
4159 In the case of ca and req the config file used is
4160 the same as the utility itself: that is the -config
4161 command line option can be used to specify an
4165 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4166 use "openssl_conf" if filename is NULL use default openssl config file.
4169 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4170 config section name. Add a new flag to tolerate a missing config file
4171 and move code to CONF_modules_load_file().
4174 *) Support for crypto accelerator cards from Accelerated Encryption
4175 Processing, www.aep.ie. (Use engine 'aep')
4176 The support was copied from 0.9.6c [engine] and adapted/corrected
4177 to work with the new engine framework.
4178 [AEP Inc. and Richard Levitte]
4180 *) Support for SureWare crypto accelerator cards from Baltimore
4181 Technologies. (Use engine 'sureware')
4182 The support was copied from 0.9.6c [engine] and adapted
4183 to work with the new engine framework.
4186 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4187 make the newer ENGINE framework commands for the CHIL engine work.
4188 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4190 *) Make it possible to produce shared libraries on ReliantUNIX.
4191 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4193 *) Add the configuration target debug-linux-ppro.
4194 Make 'openssl rsa' use the general key loading routines
4195 implemented in apps.c, and make those routines able to
4196 handle the key format FORMAT_NETSCAPE and the variant
4198 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4200 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4201 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4203 *) Add -keyform to rsautl, and document -engine.
4204 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4206 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4207 BIO_R_NO_SUCH_FILE error code rather than the generic
4208 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4211 *) Add new functions
4213 ERR_peek_last_error_line
4214 ERR_peek_last_error_line_data.
4215 These are similar to
4218 ERR_peek_error_line_data,
4219 but report on the latest error recorded rather than the first one
4220 still in the error queue.
4221 [Ben Laurie, Bodo Moeller]
4223 *) default_algorithms option in ENGINE config module. This allows things
4225 default_algorithms = ALL
4226 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4229 *) Prelminary ENGINE config module.
4232 *) New experimental application configuration code.
4235 *) Change the AES code to follow the same name structure as all other
4236 symmetric ciphers, and behave the same way. Move everything to
4237 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4238 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4240 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4241 [Ben Laurie and Theo de Raadt]
4243 *) Add option to output public keys in req command.
4244 [Massimiliano Pala madwolf@openca.org]
4246 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4247 (up to about 10% better than before for P-192 and P-224).
4250 *) New functions/macros
4252 SSL_CTX_set_msg_callback(ctx, cb)
4253 SSL_CTX_set_msg_callback_arg(ctx, arg)
4254 SSL_set_msg_callback(ssl, cb)
4255 SSL_set_msg_callback_arg(ssl, arg)
4257 to request calling a callback function
4259 void cb(int write_p, int version, int content_type,
4260 const void *buf, size_t len, SSL *ssl, void *arg)
4262 whenever a protocol message has been completely received
4263 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4264 protocol version according to which the SSL library interprets
4265 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4266 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4267 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4268 specification (change_cipher_spec(20), alert(21), handshake(22)).
4269 'buf' and 'len' point to the actual message, 'ssl' to the
4270 SSL object, and 'arg' is the application-defined value set by
4271 SSL[_CTX]_set_msg_callback_arg().
4273 'openssl s_client' and 'openssl s_server' have new '-msg' options
4274 to enable a callback that displays all protocol messages.
4277 *) Change the shared library support so shared libraries are built as
4278 soon as the corresponding static library is finished, and thereby get
4279 openssl and the test programs linked against the shared library.
4280 This still only happens when the keyword "shard" has been given to
4281 the configuration scripts.
4283 NOTE: shared library support is still an experimental thing, and
4284 backward binary compatibility is still not guaranteed.
4285 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4287 *) Add support for Subject Information Access extension.
4288 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4290 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4291 additional bytes when new memory had to be allocated, not just
4292 when reusing an existing buffer.
4295 *) New command line and configuration option 'utf8' for the req command.
4296 This allows field values to be specified as UTF8 strings.
4299 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4300 runs for the former and machine-readable output for the latter.
4303 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4304 of the e-mail address in the DN (i.e., it will go into a certificate
4305 extension only). The new configuration file option 'email_in_dn = no'
4306 has the same effect.
4307 [Massimiliano Pala madwolf@openca.org]
4309 *) Change all functions with names starting with des_ to be starting
4310 with DES_ instead. Add wrappers that are compatible with libdes,
4311 but are named _ossl_old_des_*. Finally, add macros that map the
4312 des_* symbols to the corresponding _ossl_old_des_* if libdes
4313 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4314 desired, the des_* symbols will be mapped to DES_*, with one
4317 Since we provide two compatibility mappings, the user needs to
4318 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4319 compatibility is desired. The default (i.e., when that macro
4320 isn't defined) is OpenSSL 0.9.6c compatibility.
4322 There are also macros that enable and disable the support of old
4323 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4324 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4325 are defined, the default will apply: to support the old des routines.
4327 In either case, one must include openssl/des.h to get the correct
4328 definitions. Do not try to just include openssl/des_old.h, that
4331 NOTE: This is a major break of an old API into a new one. Software
4332 authors are encouraged to switch to the DES_ style functions. Some
4333 time in the future, des_old.h and the libdes compatibility functions
4334 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4335 default), and then completely removed.
4338 *) Test for certificates which contain unsupported critical extensions.
4339 If such a certificate is found during a verify operation it is
4340 rejected by default: this behaviour can be overridden by either
4341 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4342 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4343 X509_supported_extension() has also been added which returns 1 if a
4344 particular extension is supported.
4347 *) Modify the behaviour of EVP cipher functions in similar way to digests
4348 to retain compatibility with existing code.
4351 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4352 compatibility with existing code. In particular the 'ctx' parameter does
4353 not have to be to be initialized before the call to EVP_DigestInit() and
4354 it is tidied up after a call to EVP_DigestFinal(). New function
4355 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4356 EVP_MD_CTX_copy() changed to not require the destination to be
4357 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4358 requires the destination to be valid.
4360 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4361 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4364 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4365 so that complete 'Handshake' protocol structures are kept in memory
4366 instead of overwriting 'msg_type' and 'length' with 'body' data.
4369 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4370 [Massimo Santin via Richard Levitte]
4372 *) Major restructuring to the underlying ENGINE code. This includes
4373 reduction of linker bloat, separation of pure "ENGINE" manipulation
4374 (initialisation, etc) from functionality dealing with implementations
4375 of specific crypto iterfaces. This change also introduces integrated
4376 support for symmetric ciphers and digest implementations - so ENGINEs
4377 can now accelerate these by providing EVP_CIPHER and EVP_MD
4378 implementations of their own. This is detailed in crypto/engine/README
4379 as it couldn't be adequately described here. However, there are a few
4380 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4381 were changed in the original introduction of ENGINE code have now
4382 reverted back - the hooking from this code to ENGINE is now a good
4383 deal more passive and at run-time, operations deal directly with
4384 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4385 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4386 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4387 they were not being used by the framework as there is no concept of a
4388 BIGNUM_METHOD and they could not be generalised to the new
4389 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4390 ENGINE_cpy() has been removed as it cannot be consistently defined in
4394 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4397 *) Change mkdef.pl to sort symbols that get the same entry number,
4398 and make sure the automatically generated functions ERR_load_*
4399 become part of libeay.num as well.
4402 *) New function SSL_renegotiate_pending(). This returns true once
4403 renegotiation has been requested (either SSL_renegotiate() call
4404 or HelloRequest/ClientHello receveived from the peer) and becomes
4405 false once a handshake has been completed.
4406 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4407 sends a HelloRequest, but does not ensure that a handshake takes
4408 place. SSL_renegotiate_pending() is useful for checking if the
4409 client has followed the request.)
4412 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4413 By default, clients may request session resumption even during
4414 renegotiation (if session ID contexts permit); with this option,
4415 session resumption is possible only in the first handshake.
4417 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4418 more bits available for options that should not be part of
4419 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4422 *) Add some demos for certificate and certificate request creation.
4425 *) Make maximum certificate chain size accepted from the peer application
4426 settable (SSL*_get/set_max_cert_list()), as proposed by
4427 "Douglas E. Engert" <deengert@anl.gov>.
4430 *) Add support for shared libraries for Unixware-7
4431 (Boyd Lynn Gerber <gerberb@zenez.com>).
4434 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4435 be done prior to destruction. Use this to unload error strings from
4436 ENGINEs that load their own error strings. NB: This adds two new API
4437 functions to "get" and "set" this destroy handler in an ENGINE.
4440 *) Alter all existing ENGINE implementations (except "openssl" and
4441 "openbsd") to dynamically instantiate their own error strings. This
4442 makes them more flexible to be built both as statically-linked ENGINEs
4443 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4444 Also, add stub code to each that makes building them as self-contained
4445 shared-libraries easier (see README.ENGINE).
4448 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4449 implementations into applications that are completely implemented in
4450 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4451 commands that can be used to configure what shared-library to load and
4452 to control aspects of the way it is handled. Also, made an update to
4453 the README.ENGINE file that brings its information up-to-date and
4454 provides some information and instructions on the "dynamic" ENGINE
4455 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4458 *) Make it possible to unload ranges of ERR strings with a new
4459 "ERR_unload_strings" function.
4462 *) Add a copy() function to EVP_MD.
4465 *) Make EVP_MD routines take a context pointer instead of just the
4466 md_data void pointer.
4469 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4470 that the digest can only process a single chunk of data
4471 (typically because it is provided by a piece of
4472 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4473 is only going to provide a single chunk of data, and hence the
4474 framework needn't accumulate the data for oneshot drivers.
4477 *) As with "ERR", make it possible to replace the underlying "ex_data"
4478 functions. This change also alters the storage and management of global
4479 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4480 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4481 index counters. The API functions that use this state have been changed
4482 to take a "class_index" rather than pointers to the class's local STACK
4483 and counter, and there is now an API function to dynamically create new
4484 classes. This centralisation allows us to (a) plug a lot of the
4485 thread-safety problems that existed, and (b) makes it possible to clean
4486 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4487 such data would previously have always leaked in application code and
4488 workarounds were in place to make the memory debugging turn a blind eye
4489 to it. Application code that doesn't use this new function will still
4490 leak as before, but their memory debugging output will announce it now
4491 rather than letting it slide.
4493 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4494 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4495 has a return value to indicate success or failure.
4498 *) Make it possible to replace the underlying "ERR" functions such that the
4499 global state (2 LHASH tables and 2 locks) is only used by the "default"
4500 implementation. This change also adds two functions to "get" and "set"
4501 the implementation prior to it being automatically set the first time
4502 any other ERR function takes place. Ie. an application can call "get",
4503 pass the return value to a module it has just loaded, and that module
4504 can call its own "set" function using that value. This means the
4505 module's "ERR" operations will use (and modify) the error state in the
4506 application and not in its own statically linked copy of OpenSSL code.
4509 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4510 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4511 the operation, and provides a more encapsulated way for external code
4512 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4513 to use these functions rather than manually incrementing the counts.
4515 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4518 *) Add EVP test program.
4521 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4524 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4525 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4526 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4527 These allow a CRL to be built without having to access X509_CRL fields
4528 directly. Modify 'ca' application to use new functions.
4531 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4532 bug workarounds. Rollback attack detection is a security feature.
4533 The problem will only arise on OpenSSL servers when TLSv1 is not
4534 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4535 Software authors not wanting to support TLSv1 will have special reasons
4536 for their choice and can explicitly enable this option.
4537 [Bodo Moeller, Lutz Jaenicke]
4539 *) Rationalise EVP so it can be extended: don't include a union of
4540 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4541 (similar to those existing for EVP_CIPHER_CTX).
4546 EVP_MD_CTX_init(&md); /* new function call */
4547 EVP_DigestInit(&md, EVP_sha1());
4548 EVP_DigestUpdate(&md, in, len);
4549 EVP_DigestFinal(&md, out, NULL);
4550 EVP_MD_CTX_cleanup(&md); /* new function call */
4554 *) Make DES key schedule conform to the usual scheme, as well as
4555 correcting its structure. This means that calls to DES functions
4556 now have to pass a pointer to a des_key_schedule instead of a
4557 plain des_key_schedule (which was actually always a pointer
4560 des_key_schedule ks;
4562 des_set_key_checked(..., &ks);
4563 des_ncbc_encrypt(..., &ks, ...);
4565 (Note that a later change renames 'des_...' into 'DES_...'.)
4568 *) Initial reduction of linker bloat: the use of some functions, such as
4569 PEM causes large amounts of unused functions to be linked in due to
4570 poor organisation. For example pem_all.c contains every PEM function
4571 which has a knock on effect of linking in large amounts of (unused)
4572 ASN1 code. Grouping together similar functions and splitting unrelated
4573 functions prevents this.
4576 *) Cleanup of EVP macros.
4579 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4580 correct _ecb suffix.
4583 *) Add initial OCSP responder support to ocsp application. The
4584 revocation information is handled using the text based index
4585 use by the ca application. The responder can either handle
4586 requests generated internally, supplied in files (for example
4587 via a CGI script) or using an internal minimal server.
4590 *) Add configuration choices to get zlib compression for TLS.
4593 *) Changes to Kerberos SSL for RFC 2712 compliance:
4594 1. Implemented real KerberosWrapper, instead of just using
4595 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4596 2. Implemented optional authenticator field of KerberosWrapper.
4598 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4599 and authenticator structs; see crypto/krb5/.
4601 Generalized Kerberos calls to support multiple Kerberos libraries.
4602 [Vern Staats <staatsvr@asc.hpc.mil>,
4603 Jeffrey Altman <jaltman@columbia.edu>
4604 via Richard Levitte]
4606 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4607 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4608 values for each of the key sizes rather than having just
4609 parameters (and 'speed' generating keys each time).
4612 *) Speed up EVP routines.
4615 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4616 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4617 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4618 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4620 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4621 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4622 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4625 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4627 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4630 *) Added the OS2-EMX target.
4631 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4633 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4634 to support NCONF routines in extension code. New function CONF_set_nconf()
4635 to allow functions which take an NCONF to also handle the old LHASH
4636 structure: this means that the old CONF compatible routines can be
4637 retained (in particular wrt extensions) without having to duplicate the
4638 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4641 *) Enhance the general user interface with mechanisms for inner control
4642 and with possibilities to have yes/no kind of prompts.
4645 *) Change all calls to low level digest routines in the library and
4646 applications to use EVP. Add missing calls to HMAC_cleanup() and
4647 don't assume HMAC_CTX can be copied using memcpy().
4648 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4650 *) Add the possibility to control engines through control names but with
4651 arbitrary arguments instead of just a string.
4652 Change the key loaders to take a UI_METHOD instead of a callback
4653 function pointer. NOTE: this breaks binary compatibility with earlier
4654 versions of OpenSSL [engine].
4655 Adapt the nCipher code for these new conditions and add a card insertion
4659 *) Enhance the general user interface with mechanisms to better support
4660 dialog box interfaces, application-defined prompts, the possibility
4661 to use defaults (for example default passwords from somewhere else)
4662 and interrupts/cancellations.
4665 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4666 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4669 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4670 tidy up some unnecessarily weird code in 'sk_new()').
4671 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4673 *) Change the key loading routines for ENGINEs to use the same kind
4674 callback (pem_password_cb) as all other routines that need this
4678 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4679 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4680 than this minimum value is recommended.
4683 *) New random seeder for OpenVMS, using the system process statistics
4684 that are easily reachable.
4687 *) Windows apparently can't transparently handle global
4688 variables defined in DLLs. Initialisations such as:
4690 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4692 wont compile. This is used by the any applications that need to
4693 declare their own ASN1 modules. This was fixed by adding the option
4694 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4695 needed for static libraries under Win32.
4698 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4699 setting of purpose and trust fields. New X509_STORE trust and
4700 purpose functions and tidy up setting in other SSL functions.
4703 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4704 structure. These are inherited by X509_STORE_CTX when it is
4705 initialised. This allows various defaults to be set in the
4706 X509_STORE structure (such as flags for CRL checking and custom
4707 purpose or trust settings) for functions which only use X509_STORE_CTX
4708 internally such as S/MIME.
4710 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4711 trust settings if they are not set in X509_STORE. This allows X509_STORE
4712 purposes and trust (in S/MIME for example) to override any set by default.
4714 Add command line options for CRL checking to smime, s_client and s_server
4718 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4719 are set then the CRL is looked up in the X509_STORE structure and
4720 its validity and signature checked, then if the certificate is found
4721 in the CRL the verify fails with a revoked error.
4723 Various new CRL related callbacks added to X509_STORE_CTX structure.
4725 Command line options added to 'verify' application to support this.
4727 This needs some additional work, such as being able to handle multiple
4728 CRLs with different times, extension based lookup (rather than just
4729 by subject name) and ultimately more complete V2 CRL extension
4733 *) Add a general user interface API (crypto/ui/). This is designed
4734 to replace things like des_read_password and friends (backward
4735 compatibility functions using this new API are provided).
4736 The purpose is to remove prompting functions from the DES code
4737 section as well as provide for prompting through dialog boxes in
4738 a window system and the like.
4741 *) Add "ex_data" support to ENGINE so implementations can add state at a
4742 per-structure level rather than having to store it globally.
4745 *) Make it possible for ENGINE structures to be copied when retrieved by
4746 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4747 This causes the "original" ENGINE structure to act like a template,
4748 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4749 operational state can be localised to each ENGINE structure, despite the
4750 fact they all share the same "methods". New ENGINE structures returned in
4751 this case have no functional references and the return value is the single
4752 structural reference. This matches the single structural reference returned
4753 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4757 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4758 needs to match any other type at all we need to manually clear the
4762 *) Changes to the "openssl engine" utility to include;
4763 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4764 about an ENGINE's available control commands.
4765 - executing control commands from command line arguments using the
4766 '-pre' and '-post' switches. '-post' is only used if '-t' is
4767 specified and the ENGINE is successfully initialised. The syntax for
4768 the individual commands are colon-separated, for example;
4769 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4772 *) New dynamic control command support for ENGINEs. ENGINEs can now
4773 declare their own commands (numbers), names (strings), descriptions,
4774 and input types for run-time discovery by calling applications. A
4775 subset of these commands are implicitly classed as "executable"
4776 depending on their input type, and only these can be invoked through
4777 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4778 can be based on user input, config files, etc). The distinction is
4779 that "executable" commands cannot return anything other than a boolean
4780 result and can only support numeric or string input, whereas some
4781 discoverable commands may only be for direct use through
4782 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4783 pointers, or other custom uses. The "executable" commands are to
4784 support parameterisations of ENGINE behaviour that can be
4785 unambiguously defined by ENGINEs and used consistently across any
4786 OpenSSL-based application. Commands have been added to all the
4787 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4788 control over shared-library paths without source code alterations.
4791 *) Changed all ENGINE implementations to dynamically allocate their
4792 ENGINEs rather than declaring them statically. Apart from this being
4793 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4794 this also allows the implementations to compile without using the
4795 internal engine_int.h header.
4798 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4799 'const' value. Any code that should be able to modify a RAND_METHOD
4800 should already have non-const pointers to it (ie. they should only
4801 modify their own ones).
4804 *) Made a variety of little tweaks to the ENGINE code.
4805 - "atalla" and "ubsec" string definitions were moved from header files
4806 to C code. "nuron" string definitions were placed in variables
4807 rather than hard-coded - allowing parameterisation of these values
4808 later on via ctrl() commands.
4809 - Removed unused "#if 0"'d code.
4810 - Fixed engine list iteration code so it uses ENGINE_free() to release
4811 structural references.
4812 - Constified the RAND_METHOD element of ENGINE structures.
4813 - Constified various get/set functions as appropriate and added
4814 missing functions (including a catch-all ENGINE_cpy that duplicates
4815 all ENGINE values onto a new ENGINE except reference counts/state).
4816 - Removed NULL parameter checks in get/set functions. Setting a method
4817 or function to NULL is a way of cancelling out a previously set
4818 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4819 and doesn't justify the extra error symbols and code.
4820 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4821 flags from engine_int.h to engine.h.
4822 - Changed prototypes for ENGINE handler functions (init(), finish(),
4823 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4826 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4827 to the algorithm using long division. The binary algorithm can be
4828 used only if the modulus is odd. On 32-bit systems, it is faster
4829 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4830 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4831 up to 450 bits. In 64-bit environments, the binary algorithm
4832 appears to be advantageous for much longer moduli; here we use it
4833 for moduli up to 2048 bits.
4836 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4837 could not support the combine flag in choice fields.
4840 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4841 extensions from a certificate request to the certificate.
4844 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4845 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4846 file: this allows the display of the certificate about to be
4847 signed to be customised, to allow certain fields to be included
4848 or excluded and extension details. The old system didn't display
4849 multicharacter strings properly, omitted fields not in the policy
4850 and couldn't display additional details such as extensions.
4853 *) Function EC_POINTs_mul for multiple scalar multiplication
4854 of an arbitrary number of elliptic curve points
4855 \sum scalars[i]*points[i],
4856 optionally including the generator defined for the EC_GROUP:
4857 scalar*generator + \sum scalars[i]*points[i].
4859 EC_POINT_mul is a simple wrapper function for the typical case
4860 that the point list has just one item (besides the optional
4864 *) First EC_METHODs for curves over GF(p):
4866 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4867 operations and provides various method functions that can also
4868 operate with faster implementations of modular arithmetic.
4870 EC_GFp_mont_method() reuses most functions that are part of
4871 EC_GFp_simple_method, but uses Montgomery arithmetic.
4873 [Bodo Moeller; point addition and point doubling
4874 implementation directly derived from source code provided by
4875 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4877 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4878 crypto/ec/ec_lib.c):
4880 Curves are EC_GROUP objects (with an optional group generator)
4881 based on EC_METHODs that are built into the library.
4883 Points are EC_POINT objects based on EC_GROUP objects.
4885 Most of the framework would be able to handle curves over arbitrary
4886 finite fields, but as there are no obvious types for fields other
4887 than GF(p), some functions are limited to that for now.
4890 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4891 that the file contains a complete HTTP response.
4894 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4895 change the def and num file printf format specifier from "%-40sXXX"
4896 to "%-39s XXX". The latter will always guarantee a space after the
4897 field while the former will cause them to run together if the field
4898 is 40 of more characters long.
4901 *) Constify the cipher and digest 'method' functions and structures
4902 and modify related functions to take constant EVP_MD and EVP_CIPHER
4906 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4907 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4910 *) Modify EVP_Digest*() routines so they now return values. Although the
4911 internal software routines can never fail additional hardware versions
4915 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4917 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4918 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4921 ERR_R_NESTED_ASN1_ERROR
4923 ERR_R_MISSING_ASN1_EOS
4924 were 4 .. 9, conflicting with
4925 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4927 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4928 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4930 Add new error code 'ERR_R_INTERNAL_ERROR'.
4933 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4937 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4938 sets the subject name for a new request or supersedes the
4939 subject name in a given request. Formats that can be parsed are
4940 'CN=Some Name, OU=myOU, C=IT'
4942 'CN=Some Name/OU=myOU/C=IT'.
4944 Add options '-batch' and '-verbose' to 'openssl req'.
4945 [Massimiliano Pala <madwolf@hackmasters.net>]
4947 *) Introduce the possibility to access global variables through
4948 functions on platform were that's the best way to handle exporting
4949 global variables in shared libraries. To enable this functionality,
4950 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4951 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4952 is normally done by Configure or something similar).
4954 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4955 in the source file (foo.c) like this:
4957 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4958 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4960 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4961 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4963 OPENSSL_DECLARE_GLOBAL(int,foo);
4964 #define foo OPENSSL_GLOBAL_REF(foo)
4965 OPENSSL_DECLARE_GLOBAL(double,bar);
4966 #define bar OPENSSL_GLOBAL_REF(bar)
4968 The #defines are very important, and therefore so is including the
4969 header file everywhere where the defined globals are used.
4971 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4972 of ASN.1 items, but that structure is a bit different.
4974 The largest change is in util/mkdef.pl which has been enhanced with
4975 better and easier to understand logic to choose which symbols should
4976 go into the Windows .def files as well as a number of fixes and code
4977 cleanup (among others, algorithm keywords are now sorted
4978 lexicographically to avoid constant rewrites).
4981 *) In BN_div() keep a copy of the sign of 'num' before writing the
4982 result to 'rm' because if rm==num the value will be overwritten
4983 and produce the wrong result if 'num' is negative: this caused
4984 problems with BN_mod() and BN_nnmod().
4987 *) Function OCSP_request_verify(). This checks the signature on an
4988 OCSP request and verifies the signer certificate. The signer
4989 certificate is just checked for a generic purpose and OCSP request
4993 *) Add OCSP_check_validity() function to check the validity of OCSP
4994 responses. OCSP responses are prepared in real time and may only
4995 be a few seconds old. Simply checking that the current time lies
4996 between thisUpdate and nextUpdate max reject otherwise valid responses
4997 caused by either OCSP responder or client clock inaccuracy. Instead
4998 we allow thisUpdate and nextUpdate to fall within a certain period of
4999 the current time. The age of the response can also optionally be
5000 checked. Two new options -validity_period and -status_age added to
5004 *) If signature or public key algorithm is unrecognized print out its
5005 OID rather that just UNKNOWN.
5008 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5009 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5010 ID to be generated from the issuer certificate alone which can then be
5011 passed to OCSP_id_issuer_cmp().
5014 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5015 ASN1 modules to export functions returning ASN1_ITEM pointers
5016 instead of the ASN1_ITEM structures themselves. This adds several
5017 new macros which allow the underlying ASN1 function/structure to
5018 be accessed transparently. As a result code should not use ASN1_ITEM
5019 references directly (such as &X509_it) but instead use the relevant
5020 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5021 use of the new ASN1 code on platforms where exporting structures
5022 is problematical (for example in shared libraries) but exporting
5023 functions returning pointers to structures is not.
5026 *) Add support for overriding the generation of SSL/TLS session IDs.
5027 These callbacks can be registered either in an SSL_CTX or per SSL.
5028 The purpose of this is to allow applications to control, if they wish,
5029 the arbitrary values chosen for use as session IDs, particularly as it
5030 can be useful for session caching in multiple-server environments. A
5031 command-line switch for testing this (and any client code that wishes
5032 to use such a feature) has been added to "s_server".
5033 [Geoff Thorpe, Lutz Jaenicke]
5035 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5036 of the form '#if defined(...) || defined(...) || ...' and
5037 '#if !defined(...) && !defined(...) && ...'. This also avoids
5038 the growing number of special cases it was previously handling.
5041 *) Make all configuration macros available for application by making
5042 sure they are available in opensslconf.h, by giving them names starting
5043 with "OPENSSL_" to avoid conflicts with other packages and by making
5044 sure e_os2.h will cover all platform-specific cases together with
5046 Additionally, it is now possible to define configuration/platform-
5047 specific names (called "system identities"). In the C code, these
5048 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5049 macro with the name beginning with "OPENSSL_SYS_", which is determined
5050 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5054 *) New option -set_serial to 'req' and 'x509' this allows the serial
5055 number to use to be specified on the command line. Previously self
5056 signed certificates were hard coded with serial number 0 and the
5057 CA options of 'x509' had to use a serial number in a file which was
5061 *) New options to 'ca' utility to support V2 CRL entry extensions.
5062 Currently CRL reason, invalidity date and hold instruction are
5063 supported. Add new CRL extensions to V3 code and some new objects.
5066 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5067 disable standard block padding (aka PKCS#5 padding) in the EVP
5068 API, which was previously mandatory. This means that the data is
5069 not padded in any way and so the total length much be a multiple
5070 of the block size, otherwise an error occurs.
5073 *) Initial (incomplete) OCSP SSL support.
5076 *) New function OCSP_parse_url(). This splits up a URL into its host,
5077 port and path components: primarily to parse OCSP URLs. New -url
5078 option to ocsp utility.
5081 *) New nonce behavior. The return value of OCSP_check_nonce() now
5082 reflects the various checks performed. Applications can decide
5083 whether to tolerate certain situations such as an absent nonce
5084 in a response when one was present in a request: the ocsp application
5085 just prints out a warning. New function OCSP_add1_basic_nonce()
5086 this is to allow responders to include a nonce in a response even if
5087 the request is nonce-less.
5090 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5091 skipped when using openssl x509 multiple times on a single input file,
5092 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5095 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5096 set string type: to handle setting ASN1_TIME structures. Fix ca
5097 utility to correctly initialize revocation date of CRLs.
5100 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5101 the clients preferred ciphersuites and rather use its own preferences.
5102 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5103 Internet Explorer by ensuring unchanged hash method during stepup.
5104 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5107 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5108 to aes and add a new 'exist' option to print out symbols that don't
5112 *) Additional options to ocsp utility to allow flags to be set and
5113 additional certificates supplied.
5116 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5117 OCSP client a number of certificate to only verify the response
5121 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5122 handle the new API. Currently only ECB, CBC modes supported. Add new
5125 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5126 Encryption Standard (AES) Ciphersuites for Transport Layer
5127 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5128 not enabled by default and were not part of the "ALL" ciphersuite
5129 alias because they were not yet official; they could be
5130 explicitly requested by specifying the "AESdraft" ciphersuite
5131 group alias. In the final release of OpenSSL 0.9.7, the group
5132 alias is called "AES" and is part of "ALL".)
5133 [Ben Laurie, Steve Henson, Bodo Moeller]
5135 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5136 request to response.
5139 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5140 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5141 extract information from a certificate request. OCSP_response_create()
5142 creates a response and optionally adds a basic response structure.
5143 OCSP_basic_add1_status() adds a complete single response to a basic
5144 response and returns the OCSP_SINGLERESP structure just added (to allow
5145 extensions to be included for example). OCSP_basic_add1_cert() adds a
5146 certificate to a basic response and OCSP_basic_sign() signs a basic
5147 response with various flags. New helper functions ASN1_TIME_check()
5148 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5149 (converts ASN1_TIME to GeneralizedTime).
5152 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5153 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5154 structure from a certificate. X509_pubkey_digest() digests the public_key
5155 contents: this is used in various key identifiers.
5158 *) Make sk_sort() tolerate a NULL argument.
5159 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5161 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5162 passed by the function are trusted implicitly. If any of them signed the
5163 response then it is assumed to be valid and is not verified.
5166 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5167 to data. This was previously part of the PKCS7 ASN1 code. This
5168 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5169 [Steve Henson, reported by Kenneth R. Robinette
5170 <support@securenetterm.com>]
5172 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5173 routines: without these tracing memory leaks is very painful.
5174 Fix leaks in PKCS12 and PKCS7 routines.
5177 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5178 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5179 effectively meant GeneralizedTime would never be used. Now it
5180 is initialised to -1 but X509_time_adj() now has to check the value
5181 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5182 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5183 [Steve Henson, reported by Kenneth R. Robinette
5184 <support@securenetterm.com>]
5186 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5187 result in a zero length in the ASN1_INTEGER structure which was
5188 not consistent with the structure when d2i_ASN1_INTEGER() was used
5189 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5190 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5191 where it did not print out a minus for negative ASN1_INTEGER.
5194 *) Add summary printout to ocsp utility. The various functions which
5195 convert status values to strings have been renamed to:
5196 OCSP_response_status_str(), OCSP_cert_status_str() and
5197 OCSP_crl_reason_str() and are no longer static. New options
5198 to verify nonce values and to disable verification. OCSP response
5199 printout format cleaned up.
5202 *) Add additional OCSP certificate checks. These are those specified
5203 in RFC2560. This consists of two separate checks: the CA of the
5204 certificate being checked must either be the OCSP signer certificate
5205 or the issuer of the OCSP signer certificate. In the latter case the
5206 OCSP signer certificate must contain the OCSP signing extended key
5207 usage. This check is performed by attempting to match the OCSP
5208 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5209 in the OCSP_CERTID structures of the response.
5212 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5213 and related routines. This uses the standard OpenSSL certificate
5214 verify routines to perform initial checks (just CA validity) and
5215 to obtain the certificate chain. Then additional checks will be
5216 performed on the chain. Currently the root CA is checked to see
5217 if it is explicitly trusted for OCSP signing. This is used to set
5218 a root CA as a global signing root: that is any certificate that
5219 chains to that CA is an acceptable OCSP signing certificate.
5222 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5223 extensions from a separate configuration file.
5224 As when reading extensions from the main configuration file,
5225 the '-extensions ...' option may be used for specifying the
5227 [Massimiliano Pala <madwolf@comune.modena.it>]
5229 *) New OCSP utility. Allows OCSP requests to be generated or
5230 read. The request can be sent to a responder and the output
5231 parsed, outputed or printed in text form. Not complete yet:
5232 still needs to check the OCSP response validity.
5235 *) New subcommands for 'openssl ca':
5236 'openssl ca -status <serial>' prints the status of the cert with
5237 the given serial number (according to the index file).
5238 'openssl ca -updatedb' updates the expiry status of certificates
5240 [Massimiliano Pala <madwolf@comune.modena.it>]
5242 *) New '-newreq-nodes' command option to CA.pl. This is like
5243 '-newreq', but calls 'openssl req' with the '-nodes' option
5244 so that the resulting key is not encrypted.
5245 [Damien Miller <djm@mindrot.org>]
5247 *) New configuration for the GNU Hurd.
5248 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5250 *) Initial code to implement OCSP basic response verify. This
5251 is currently incomplete. Currently just finds the signer's
5252 certificate and verifies the signature on the response.
5255 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5256 value of OPENSSLDIR. This is available via the new '-d' option
5257 to 'openssl version', and is also included in 'openssl version -a'.
5260 *) Allowing defining memory allocation callbacks that will be given
5261 file name and line number information in additional arguments
5262 (a const char* and an int). The basic functionality remains, as
5263 well as the original possibility to just replace malloc(),
5264 realloc() and free() by functions that do not know about these
5265 additional arguments. To register and find out the current
5266 settings for extended allocation functions, the following
5267 functions are provided:
5269 CRYPTO_set_mem_ex_functions
5270 CRYPTO_set_locked_mem_ex_functions
5271 CRYPTO_get_mem_ex_functions
5272 CRYPTO_get_locked_mem_ex_functions
5274 These work the same way as CRYPTO_set_mem_functions and friends.
5275 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5276 extended allocation function is enabled.
5277 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5278 a conventional allocation function is enabled.
5279 [Richard Levitte, Bodo Moeller]
5281 *) Finish off removing the remaining LHASH function pointer casts.
5282 There should no longer be any prototype-casting required when using
5283 the LHASH abstraction, and any casts that remain are "bugs". See
5284 the callback types and macros at the head of lhash.h for details
5285 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5288 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5289 If /dev/[u]random devices are not available or do not return enough
5290 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5292 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5293 /etc/entropy will be queried once each in this sequence, quering stops
5294 when enough entropy was collected without querying more sockets.
5297 *) Change the Unix RAND_poll() variant to be able to poll several
5298 random devices, as specified by DEVRANDOM, until a sufficient amount
5299 of data has been collected. We spend at most 10 ms on each file
5300 (select timeout) and read in non-blocking mode. DEVRANDOM now
5301 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5302 (previously it was just the string "/dev/urandom"), so on typical
5303 platforms the 10 ms delay will never occur.
5304 Also separate out the Unix variant to its own file, rand_unix.c.
5305 For VMS, there's a currently-empty rand_vms.c.
5308 *) Move OCSP client related routines to ocsp_cl.c. These
5309 provide utility functions which an application needing
5310 to issue a request to an OCSP responder and analyse the
5311 response will typically need: as opposed to those which an
5312 OCSP responder itself would need which will be added later.
5314 OCSP_request_sign() signs an OCSP request with an API similar
5315 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5316 response. OCSP_response_get1_basic() extracts basic response
5317 from response. OCSP_resp_find_status(): finds and extracts status
5318 information from an OCSP_CERTID structure (which will be created
5319 when the request structure is built). These are built from lower
5320 level functions which work on OCSP_SINGLERESP structures but
5321 wont normally be used unless the application wishes to examine
5322 extensions in the OCSP response for example.
5324 Replace nonce routines with a pair of functions.
5325 OCSP_request_add1_nonce() adds a nonce value and optionally
5326 generates a random value. OCSP_check_nonce() checks the
5327 validity of the nonce in an OCSP response.
5330 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5331 This doesn't copy the supplied OCSP_CERTID and avoids the
5332 need to free up the newly created id. Change return type
5333 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5334 This can then be used to add extensions to the request.
5335 Deleted OCSP_request_new(), since most of its functionality
5336 is now in OCSP_REQUEST_new() (and the case insensitive name
5337 clash) apart from the ability to set the request name which
5338 will be added elsewhere.
5341 *) Update OCSP API. Remove obsolete extensions argument from
5342 various functions. Extensions are now handled using the new
5343 OCSP extension code. New simple OCSP HTTP function which
5344 can be used to send requests and parse the response.
5347 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5348 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5349 uses the special reorder version of SET OF to sort the attributes
5350 and reorder them to match the encoded order. This resolves a long
5351 standing problem: a verify on a PKCS7 structure just after signing
5352 it used to fail because the attribute order did not match the
5353 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5354 it uses the received order. This is necessary to tolerate some broken
5355 software that does not order SET OF. This is handled by encoding
5356 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5357 to produce the required SET OF.
5360 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5361 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5362 files to get correct declarations of the ASN.1 item variables.
5365 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5366 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5367 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5368 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5369 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5370 ASN1_ITEM and no wrapper functions.
5373 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5374 replace the old function pointer based I/O routines. Change most of
5375 the *_d2i_bio() and *_d2i_fp() functions to use these.
5378 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5379 lines, recognice more "algorithms" that can be deselected, and make
5380 it complain about algorithm deselection that isn't recognised.
5383 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5384 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5385 to use new functions. Add NO_ASN1_OLD which can be set to remove
5386 some old style ASN1 functions: this can be used to determine if old
5387 code will still work when these eventually go away.
5390 *) New extension functions for OCSP structures, these follow the
5391 same conventions as certificates and CRLs.
5394 *) New function X509V3_add1_i2d(). This automatically encodes and
5395 adds an extension. Its behaviour can be customised with various
5396 flags to append, replace or delete. Various wrappers added for
5397 certifcates and CRLs.
5400 *) Fix to avoid calling the underlying ASN1 print routine when
5401 an extension cannot be parsed. Correct a typo in the
5402 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5405 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5406 entries for variables.
5409 *) Add functionality to apps/openssl.c for detecting locking
5410 problems: As the program is single-threaded, all we have
5411 to do is register a locking callback using an array for
5412 storing which locks are currently held by the program.
5415 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5416 SSL_get_ex_data_X509_STORE_idx(), which is used in
5417 ssl_verify_cert_chain() and thus can be called at any time
5418 during TLS/SSL handshakes so that thread-safety is essential.
5419 Unfortunately, the ex_data design is not at all suited
5420 for multi-threaded use, so it probably should be abolished.
5423 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5424 [Broadcom, tweaked and integrated by Geoff Thorpe]
5426 *) Move common extension printing code to new function
5427 X509V3_print_extensions(). Reorganise OCSP print routines and
5428 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5431 *) New function X509_signature_print() to remove duplication in some
5435 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5436 set (this was treated exactly the same as SET OF previously). This
5437 is used to reorder the STACK representing the structure to match the
5438 encoding. This will be used to get round a problem where a PKCS7
5439 structure which was signed could not be verified because the STACK
5440 order did not reflect the encoded order.
5443 *) Reimplement the OCSP ASN1 module using the new code.
5446 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5447 for its ASN1 operations. The old style function pointers still exist
5448 for now but they will eventually go away.
5451 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5452 completely replaces the old ASN1 functionality with a table driven
5453 encoder and decoder which interprets an ASN1_ITEM structure describing
5454 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5455 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5456 has also been converted to the new form.
5459 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5460 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5461 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5462 for negative moduli.
5465 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5466 of not touching the result's sign bit.
5469 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5473 *) Changed the LHASH code to use prototypes for callbacks, and created
5474 macros to declare and implement thin (optionally static) functions
5475 that provide type-safety and avoid function pointer casting for the
5476 type-specific callbacks.
5479 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5481 [Veers Staats <staatsvr@asc.hpc.mil>,
5482 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5484 *) Reformat the FAQ so the different questions and answers can be divided
5485 in sections depending on the subject.
5488 *) Have the zlib compression code load ZLIB.DLL dynamically under
5492 *) New function BN_mod_sqrt for computing square roots modulo a prime
5493 (using the probabilistic Tonelli-Shanks algorithm unless
5494 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5495 be handled deterministically).
5496 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5498 *) Make BN_mod_inverse faster by explicitly handling small quotients
5499 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5500 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5503 *) New function BN_kronecker.
5506 *) Fix BN_gcd so that it works on negative inputs; the result is
5507 positive unless both parameters are zero.
5508 Previously something reasonably close to an infinite loop was
5509 possible because numbers could be growing instead of shrinking
5510 in the implementation of Euclid's algorithm.
5513 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5514 sign of the number in question.
5516 Fix BN_is_word(a,w) to work correctly for w == 0.
5518 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5519 because its test if the absolute value of 'a' equals 'w'.
5520 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5521 it exists mostly for use in the implementations of BN_is_zero(),
5522 BN_is_one(), and BN_is_word().
5525 *) New function BN_swap.
5528 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5529 the exponentiation functions are more likely to produce reasonable
5530 results on negative inputs.
5533 *) Change BN_mod_mul so that the result is always non-negative.
5534 Previously, it could be negative if one of the factors was negative;
5535 I don't think anyone really wanted that behaviour.
5538 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5539 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5540 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5541 and add new functions:
5550 BN_mod_lshift1_quick
5554 These functions always generate non-negative results.
5556 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5557 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5559 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5560 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5561 be reduced modulo m.
5562 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5565 The following entry accidentily appeared in the CHANGES file
5566 distributed with OpenSSL 0.9.7. The modifications described in
5567 it do *not* apply to OpenSSL 0.9.7.
5569 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5570 was actually never needed) and in BN_mul(). The removal in BN_mul()
5571 required a small change in bn_mul_part_recursive() and the addition
5572 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5573 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5574 bn_sub_words() and bn_add_words() except they take arrays with
5579 *) In 'openssl passwd', verify passwords read from the terminal
5580 unless the '-salt' option is used (which usually means that
5581 verification would just waste user's time since the resulting
5582 hash is going to be compared with some given password hash)
5583 or the new '-noverify' option is used.
5585 This is an incompatible change, but it does not affect
5586 non-interactive use of 'openssl passwd' (passwords on the command
5587 line, '-stdin' option, '-in ...' option) and thus should not
5591 *) Remove all references to RSAref, since there's no more need for it.
5594 *) Make DSO load along a path given through an environment variable
5595 (SHLIB_PATH) with shl_load().
5598 *) Constify the ENGINE code as a result of BIGNUM constification.
5599 Also constify the RSA code and most things related to it. In a
5600 few places, most notable in the depth of the ASN.1 code, ugly
5601 casts back to non-const were required (to be solved at a later
5605 *) Make it so the openssl application has all engines loaded by default.
5608 *) Constify the BIGNUM routines a little more.
5611 *) Add the following functions:
5613 ENGINE_load_cswift()
5615 ENGINE_load_atalla()
5617 ENGINE_load_builtin_engines()
5619 That way, an application can itself choose if external engines that
5620 are built-in in OpenSSL shall ever be used or not. The benefit is
5621 that applications won't have to be linked with libdl or other dso
5622 libraries unless it's really needed.
5624 Changed 'openssl engine' to load all engines on demand.
5625 Changed the engine header files to avoid the duplication of some
5626 declarations (they differed!).
5629 *) 'openssl engine' can now list capabilities.
5632 *) Better error reporting in 'openssl engine'.
5635 *) Never call load_dh_param(NULL) in s_server.
5638 *) Add engine application. It can currently list engines by name and
5639 identity, and test if they are actually available.
5642 *) Improve RPM specification file by forcing symbolic linking and making
5643 sure the installed documentation is also owned by root.root.
5644 [Damien Miller <djm@mindrot.org>]
5646 *) Give the OpenSSL applications more possibilities to make use of
5647 keys (public as well as private) handled by engines.
5650 *) Add OCSP code that comes from CertCo.
5653 *) Add VMS support for the Rijndael code.
5656 *) Added untested support for Nuron crypto accelerator.
5659 *) Add support for external cryptographic devices. This code was
5660 previously distributed separately as the "engine" branch.
5661 [Geoff Thorpe, Richard Levitte]
5663 *) Rework the filename-translation in the DSO code. It is now possible to
5664 have far greater control over how a "name" is turned into a filename
5665 depending on the operating environment and any oddities about the
5666 different shared library filenames on each system.
5669 *) Support threads on FreeBSD-elf in Configure.
5672 *) Fix for SHA1 assembly problem with MASM: it produces
5673 warnings about corrupt line number information when assembling
5674 with debugging information. This is caused by the overlapping
5676 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5679 NCONF_get_number() has no error checking at all. As a replacement,
5680 NCONF_get_number_e() is defined (_e for "error checking") and is
5681 promoted strongly. The old NCONF_get_number is kept around for
5682 binary backward compatibility.
5683 Make it possible for methods to load from something other than a BIO,
5684 by providing a function pointer that is given a name instead of a BIO.
5685 For example, this could be used to load configuration data from an
5689 *) Fix for non blocking accept BIOs. Added new I/O special reason
5690 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5691 with non blocking I/O was not possible because no retry code was
5692 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5696 *) Added the beginnings of Rijndael support.
5699 *) Fix for bug in DirectoryString mask setting. Add support for
5700 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5701 to allow certificate printing to more controllable, additional
5702 'certopt' option to 'x509' to allow new printing options to be
5706 *) Clean old EAY MD5 hack from e_os.h.
5709 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5711 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5712 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5713 [Joe Orton, Steve Henson]
5715 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5717 *) Fix additional bug revealed by the NISCC test suite:
5719 Stop bug triggering large recursion when presented with
5720 certain ASN.1 tags (CVE-2003-0851)
5723 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5725 *) Fix various bugs revealed by running the NISCC test suite:
5727 Stop out of bounds reads in the ASN1 code when presented with
5728 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5730 If verify callback ignores invalid public key errors don't try to check
5731 certificate signature with the NULL public key.
5735 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5736 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5740 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5741 extra data after the compression methods not only for TLS 1.0
5742 but also for SSL 3.0 (as required by the specification).
5743 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5745 *) Change X509_certificate_type() to mark the key as exported/exportable
5746 when it's 512 *bits* long, not 512 bytes.
5749 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5751 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5752 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5753 a protocol version number mismatch like a decryption error
5754 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5757 *) Turn on RSA blinding by default in the default implementation
5758 to avoid a timing attack. Applications that don't want it can call
5759 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5760 They would be ill-advised to do so in most cases.
5761 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5763 *) Change RSA blinding code so that it works when the PRNG is not
5764 seeded (in this case, the secret RSA exponent is abused as
5765 an unpredictable seed -- if it is not unpredictable, there
5766 is no point in blinding anyway). Make RSA blinding thread-safe
5767 by remembering the creator's thread ID in rsa->blinding and
5768 having all other threads use local one-time blinding factors
5769 (this requires more computation than sharing rsa->blinding, but
5770 avoids excessive locking; and if an RSA object is not shared
5771 between threads, blinding will still be very fast).
5774 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5776 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5777 via timing by performing a MAC computation even if incorrrect
5778 block cipher padding has been found. This is a countermeasure
5779 against active attacks where the attacker has to distinguish
5780 between bad padding and a MAC verification error. (CVE-2003-0078)
5782 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5783 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5784 Martin Vuagnoux (EPFL, Ilion)]
5786 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5788 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5789 memory from it's contents. This is done with a counter that will
5790 place alternating values in each byte. This can be used to solve
5791 two issues: 1) the removal of calls to memset() by highly optimizing
5792 compilers, and 2) cleansing with other values than 0, since those can
5793 be read through on certain media, for example a swap space on disk.
5796 *) Bugfix: client side session caching did not work with external caching,
5797 because the session->cipher setting was not restored when reloading
5798 from the external cache. This problem was masked, when
5799 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5800 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5803 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5804 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5805 [Zeev Lieber <zeev-l@yahoo.com>]
5807 *) Undo an undocumented change introduced in 0.9.6e which caused
5808 repeated calls to OpenSSL_add_all_ciphers() and
5809 OpenSSL_add_all_digests() to be ignored, even after calling
5813 *) Change the default configuration reader to deal with last line not
5814 being properly terminated.
5817 *) Change X509_NAME_cmp() so it applies the special rules on handling
5818 DN values that are of type PrintableString, as well as RDNs of type
5819 emailAddress where the value has the type ia5String.
5820 [stefank@valicert.com via Richard Levitte]
5822 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5823 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5824 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5825 the bitwise-OR of the two for use by the majority of applications
5826 wanting this behaviour, and update the docs. The documented
5827 behaviour and actual behaviour were inconsistent and had been
5828 changing anyway, so this is more a bug-fix than a behavioural
5830 [Geoff Thorpe, diagnosed by Nadav Har'El]
5832 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5833 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5836 *) Fix initialization code race conditions in
5837 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5838 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5839 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5840 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5841 ssl2_get_cipher_by_char(),
5842 ssl3_get_cipher_by_char().
5843 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5845 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5846 the cached sessions are flushed, as the remove_cb() might use ex_data
5847 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5848 (see [openssl.org #212]).
5849 [Geoff Thorpe, Lutz Jaenicke]
5851 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5852 length, instead of the encoding length to d2i_ASN1_OBJECT.
5855 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5857 *) [In 0.9.6g-engine release:]
5858 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5859 [Lynn Gazis <lgazis@rainbow.com>]
5861 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5863 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5864 and get fix the header length calculation.
5865 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5866 Alon Kantor <alonk@checkpoint.com> (and others),
5869 *) Use proper error handling instead of 'assertions' in buffer
5870 overflow checks added in 0.9.6e. This prevents DoS (the
5871 assertions could call abort()).
5872 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5874 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5876 *) Add various sanity checks to asn1_get_length() to reject
5877 the ASN1 length bytes if they exceed sizeof(long), will appear
5878 negative or the content length exceeds the length of the
5880 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5882 *) Fix cipher selection routines: ciphers without encryption had no flags
5883 for the cipher strength set and where therefore not handled correctly
5884 by the selection routines (PR #130).
5887 *) Fix EVP_dsa_sha macro.
5891 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5892 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5893 that was added in OpenSSL 0.9.6d.
5895 As the countermeasure turned out to be incompatible with some
5896 broken SSL implementations, the new option is part of SSL_OP_ALL.
5897 SSL_OP_ALL is usually employed when compatibility with weird SSL
5898 implementations is desired (e.g. '-bugs' option to 's_client' and
5899 's_server'), so the new option is automatically set in many
5903 *) Changes in security patch:
5905 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5906 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5907 Air Force Materiel Command, USAF, under agreement number
5910 *) Add various sanity checks to asn1_get_length() to reject
5911 the ASN1 length bytes if they exceed sizeof(long), will appear
5912 negative or the content length exceeds the length of the
5913 supplied buffer. (CVE-2002-0659)
5914 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5916 *) Assertions for various potential buffer overflows, not known to
5918 [Ben Laurie (CHATS)]
5920 *) Various temporary buffers to hold ASCII versions of integers were
5921 too small for 64 bit platforms. (CVE-2002-0655)
5922 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5924 *) Remote buffer overflow in SSL3 protocol - an attacker could
5925 supply an oversized session ID to a client. (CVE-2002-0656)
5926 [Ben Laurie (CHATS)]
5928 *) Remote buffer overflow in SSL2 protocol - an attacker could
5929 supply an oversized client master key. (CVE-2002-0656)
5930 [Ben Laurie (CHATS)]
5932 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5934 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5935 encoded as NULL) with id-dsa-with-sha1.
5936 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5938 *) Check various X509_...() return values in apps/req.c.
5939 [Nils Larsch <nla@trustcenter.de>]
5941 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5942 an end-of-file condition would erronously be flagged, when the CRLF
5943 was just at the end of a processed block. The bug was discovered when
5944 processing data through a buffering memory BIO handing the data to a
5945 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5946 <ptsekov@syntrex.com> and Nedelcho Stanev.
5949 *) Implement a countermeasure against a vulnerability recently found
5950 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5951 before application data chunks to avoid the use of known IVs
5952 with data potentially chosen by the attacker.
5955 *) Fix length checks in ssl3_get_client_hello().
5958 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5959 to prevent ssl3_read_internal() from incorrectly assuming that
5960 ssl3_read_bytes() found application data while handshake
5961 processing was enabled when in fact s->s3->in_read_app_data was
5962 merely automatically cleared during the initial handshake.
5963 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5965 *) Fix object definitions for Private and Enterprise: they were not
5966 recognized in their shortname (=lowercase) representation. Extend
5967 obj_dat.pl to issue an error when using undefined keywords instead
5968 of silently ignoring the problem (Svenning Sorensen
5969 <sss@sss.dnsalias.net>).
5972 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5973 generators, i.e. generators other than 2 and 5. (Previously, the
5974 code did not properly initialise the 'add' and 'rem' values to
5975 BN_generate_prime().)
5977 In the new general case, we do not insist that 'generator' is
5978 actually a primitive root: This requirement is rather pointless;
5979 a generator of the order-q subgroup is just as good, if not
5983 *) Map new X509 verification errors to alerts. Discovered and submitted by
5984 Tom Wu <tom@arcot.com>.
5987 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5988 returning non-zero before the data has been completely received
5989 when using non-blocking I/O.
5990 [Bodo Moeller; problem pointed out by John Hughes]
5992 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5993 [Ben Laurie, Lutz Jaenicke]
5995 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5996 Yoram Zahavi <YoramZ@gilian.com>).
5999 *) Add information about CygWin 1.3 and on, and preserve proper
6000 configuration for the versions before that.
6001 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6003 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6004 check whether we deal with a copy of a session and do not delete from
6005 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6006 <izhar@checkpoint.com>.
6009 *) Do not store session data into the internal session cache, if it
6010 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6011 flag is set). Proposed by Aslam <aslam@funk.com>.
6014 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6018 *) [In 0.9.6d-engine release:]
6019 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6020 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6022 *) Add the configuration target linux-s390x.
6023 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6025 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6026 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6027 variable as an indication that a ClientHello message has been
6028 received. As the flag value will be lost between multiple
6029 invocations of ssl3_accept when using non-blocking I/O, the
6030 function may not be aware that a handshake has actually taken
6031 place, thus preventing a new session from being added to the
6034 To avoid this problem, we now set s->new_session to 2 instead of
6035 using a local variable.
6036 [Lutz Jaenicke, Bodo Moeller]
6038 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6039 if the SSL_R_LENGTH_MISMATCH error is detected.
6040 [Geoff Thorpe, Bodo Moeller]
6042 *) New 'shared_ldflag' column in Configure platform table.
6045 *) Fix EVP_CIPHER_mode macro.
6046 ["Dan S. Camper" <dan@bti.net>]
6048 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6049 type, we must throw them away by setting rr->length to 0.
6050 [D P Chang <dpc@qualys.com>]
6052 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6054 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6055 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6056 worked incorrectly for those cases where range = 10..._2 and
6057 3*range is two bits longer than range.)
6060 *) Only add signing time to PKCS7 structures if it is not already
6064 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6065 OBJ_ld_ce should be OBJ_id_ce.
6066 Also some ip-pda OIDs in crypto/objects/objects.txt were
6067 incorrect (cf. RFC 3039).
6068 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6070 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6071 returns early because it has nothing to do.
6072 [Andy Schneider <andy.schneider@bjss.co.uk>]
6074 *) [In 0.9.6c-engine release:]
6075 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6076 [Andy Schneider <andy.schneider@bjss.co.uk>]
6078 *) [In 0.9.6c-engine release:]
6079 Add support for Cryptographic Appliance's keyserver technology.
6080 (Use engine 'keyclient')
6081 [Cryptographic Appliances and Geoff Thorpe]
6083 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6084 is called via tools/c89.sh because arguments have to be
6085 rearranged (all '-L' options must appear before the first object
6087 [Richard Shapiro <rshapiro@abinitio.com>]
6089 *) [In 0.9.6c-engine release:]
6090 Add support for Broadcom crypto accelerator cards, backported
6092 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6094 *) [In 0.9.6c-engine release:]
6095 Add support for SureWare crypto accelerator cards from
6096 Baltimore Technologies. (Use engine 'sureware')
6097 [Baltimore Technologies and Mark Cox]
6099 *) [In 0.9.6c-engine release:]
6100 Add support for crypto accelerator cards from Accelerated
6101 Encryption Processing, www.aep.ie. (Use engine 'aep')
6102 [AEP Inc. and Mark Cox]
6104 *) Add a configuration entry for gcc on UnixWare.
6105 [Gary Benson <gbenson@redhat.com>]
6107 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6108 messages are stored in a single piece (fixed-length part and
6109 variable-length part combined) and fix various bugs found on the way.
6112 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6113 instead. BIO_gethostbyname() does not know what timeouts are
6114 appropriate, so entries would stay in cache even when they have
6116 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6118 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6119 faced with a pathologically small ClientHello fragment that does
6120 not contain client_version: Instead of aborting with an error,
6121 simply choose the highest available protocol version (i.e.,
6122 TLS 1.0 unless it is disabled). In practice, ClientHello
6123 messages are never sent like this, but this change gives us
6124 strictly correct behaviour at least for TLS.
6127 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6128 never resets s->method to s->ctx->method when called from within
6129 one of the SSL handshake functions.
6130 [Bodo Moeller; problem pointed out by Niko Baric]
6132 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6133 (sent using the client's version number) if client_version is
6134 smaller than the protocol version in use. Also change
6135 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6136 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6137 the client will at least see that alert.
6140 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6144 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6145 client receives HelloRequest while in a handshake.
6146 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6148 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6149 should end in 'break', not 'goto end' which circuments various
6150 cleanups done in state SSL_ST_OK. But session related stuff
6151 must be disabled for SSL_ST_OK in the case that we just sent a
6154 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6155 before just sending a HelloRequest.
6156 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6158 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6159 reveal whether illegal block cipher padding was found or a MAC
6160 verification error occured. (Neither SSLerr() codes nor alerts
6161 are directly visible to potential attackers, but the information
6162 may leak via logfiles.)
6164 Similar changes are not required for the SSL 2.0 implementation
6165 because the number of padding bytes is sent in clear for SSL 2.0,
6166 and the extra bytes are just ignored. However ssl/s2_pkt.c
6167 failed to verify that the purported number of padding bytes is in
6171 *) Add OpenUNIX-8 support including shared libraries
6172 (Boyd Lynn Gerber <gerberb@zenez.com>).
6175 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6176 'wristwatch attack' using huge encoding parameters (cf.
6177 James H. Manger's CRYPTO 2001 paper). Note that the
6178 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6179 encoding parameters and hence was not vulnerable.
6182 *) BN_sqr() bug fix.
6183 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6185 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6186 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6187 followed by modular reduction.
6188 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6190 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6191 equivalent based on BN_pseudo_rand() instead of BN_rand().
6194 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6195 This function was broken, as the check for a new client hello message
6196 to handle SGC did not allow these large messages.
6197 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6200 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6203 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6204 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6207 *) Rework the configuration and shared library support for Tru64 Unix.
6208 The configuration part makes use of modern compiler features and
6209 still retains old compiler behavior for those that run older versions
6210 of the OS. The shared library support part includes a variant that
6211 uses the RPATH feature, and is available through the special
6212 configuration target "alpha-cc-rpath", which will never be selected
6214 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6216 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6217 with the same message size as in ssl3_get_certificate_request().
6218 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6219 messages might inadvertently be reject as too long.
6220 [Petr Lampa <lampa@fee.vutbr.cz>]
6222 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6225 *) Modified SSL library such that the verify_callback that has been set
6226 specificly for an SSL object with SSL_set_verify() is actually being
6227 used. Before the change, a verify_callback set with this function was
6228 ignored and the verify_callback() set in the SSL_CTX at the time of
6229 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6230 to allow the necessary settings.
6233 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6234 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6235 done automatically (in contradiction to the requirements of the C
6236 standard). This made problems when used from OpenSSH.
6239 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6240 dh->length and always used
6242 BN_rand_range(priv_key, dh->p).
6244 BN_rand_range() is not necessary for Diffie-Hellman, and this
6245 specific range makes Diffie-Hellman unnecessarily inefficient if
6246 dh->length (recommended exponent length) is much smaller than the
6247 length of dh->p. We could use BN_rand_range() if the order of
6248 the subgroup was stored in the DH structure, but we only have
6253 BN_rand(priv_key, l, ...)
6255 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6261 RSA_eay_public_encrypt
6262 RSA_eay_private_decrypt
6263 RSA_eay_private_encrypt (signing)
6264 RSA_eay_public_decrypt (signature verification)
6266 (default implementations for RSA_public_encrypt,
6267 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6268 always reject numbers >= n.
6271 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6272 to synchronize access to 'locking_thread'. This is necessary on
6273 systems where access to 'locking_thread' (an 'unsigned long'
6274 variable) is not atomic.
6277 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6278 *before* setting the 'crypto_lock_rand' flag. The previous code had
6279 a race condition if 0 is a valid thread ID.
6280 [Travis Vitek <vitek@roguewave.com>]
6282 *) Add support for shared libraries under Irix.
6283 [Albert Chin-A-Young <china@thewrittenword.com>]
6285 *) Add configuration option to build on Linux on both big-endian and
6287 [Ralf Baechle <ralf@uni-koblenz.de>]
6289 *) Add the possibility to create shared libraries on HP-UX.
6292 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6294 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6295 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6296 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6297 PRNG state recovery was possible based on the output of
6298 one PRNG request appropriately sized to gain knowledge on
6299 'md' followed by enough consecutive 1-byte PRNG requests
6300 to traverse all of 'state'.
6302 1. When updating 'md_local' (the current thread's copy of 'md')
6303 during PRNG output generation, hash all of the previous
6304 'md_local' value, not just the half used for PRNG output.
6306 2. Make the number of bytes from 'state' included into the hash
6307 independent from the number of PRNG bytes requested.
6309 The first measure alone would be sufficient to avoid
6310 Markku-Juhani's attack. (Actually it had never occurred
6311 to me that the half of 'md_local' used for chaining was the
6312 half from which PRNG output bytes were taken -- I had always
6313 assumed that the secret half would be used.) The second
6314 measure makes sure that additional data from 'state' is never
6315 mixed into 'md_local' in small portions; this heuristically
6316 further strengthens the PRNG.
6319 *) Fix crypto/bn/asm/mips3.s.
6322 *) When only the key is given to "enc", the IV is undefined. Print out
6323 an error message in this case.
6326 *) Handle special case when X509_NAME is empty in X509 printing routines.
6329 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6330 positive and less than q.
6333 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6334 used: it isn't thread safe and the add_lock_callback should handle
6336 [Paul Rose <Paul.Rose@bridge.com>]
6338 *) Verify that incoming data obeys the block size in
6339 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6343 [Ulf Möller, Bodo Möller]
6345 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6346 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6347 when fixing the server behaviour for backwards-compatible 'client
6348 hello' messages. (Note that the attack is impractical against
6349 SSL 3.0 and TLS 1.0 anyway because length and version checking
6350 means that the probability of guessing a valid ciphertext is
6351 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6354 Before 0.9.5, the countermeasure (hide the error by generating a
6355 random 'decryption result') did not work properly because
6356 ERR_clear_error() was missing, meaning that SSL_get_error() would
6357 detect the supposedly ignored error.
6359 Both problems are now fixed.
6362 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6363 (previously it was 1024).
6366 *) Fix for compatibility mode trust settings: ignore trust settings
6367 unless some valid trust or reject settings are present.
6370 *) Fix for blowfish EVP: its a variable length cipher.
6373 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6374 parameters in DSA public key structures and return an error in the
6375 DSA routines if parameters are absent.
6378 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6379 in the current directory if neither $RANDFILE nor $HOME was set.
6380 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6381 caused some confusion to Windows users who haven't defined $HOME.
6382 Thus RAND_file_name() is changed again: e_os.h can define a
6383 DEFAULT_HOME, which will be used if $HOME is not set.
6384 For Windows, we use "C:"; on other platforms, we still require
6385 environment variables.
6387 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6388 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6389 having multiple threads call RAND_poll() concurrently.
6392 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6393 combination of a flag and a thread ID variable.
6394 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6395 flag), *other* threads can enter ssleay_add_bytes without obeying
6396 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6397 that they do not hold after the first thread unsets add_do_not_lock).
6400 *) Change bctest again: '-x' expressions are not available in all
6404 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6406 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6407 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6409 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6410 the default extension for executables, if any. Also, make the perl
6411 scripts that use symlink() to test if it really exists and use "cp"
6412 if it doesn't. All this made OpenSSL compilable and installable in
6416 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6417 If SEQUENCE is length is indefinite just set c->slen to the total
6418 amount of data available.
6419 [Steve Henson, reported by shige@FreeBSD.org]
6420 [This change does not apply to 0.9.7.]
6422 *) Change bctest to avoid here-documents inside command substitution
6423 (workaround for FreeBSD /bin/sh bug).
6424 For compatibility with Ultrix, avoid shell functions (introduced
6425 in the bctest version that searches along $PATH).
6428 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6429 with des_encrypt() defined on some operating systems, like Solaris
6433 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6434 On the Importance of Eliminating Errors in Cryptographic
6435 Computations, J. Cryptology 14 (2001) 2, 101-119,
6436 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6439 *) MIPS assembler BIGNUM division bug fix.
6442 *) Disabled incorrect Alpha assembler code.
6445 *) Fix PKCS#7 decode routines so they correctly update the length
6446 after reading an EOC for the EXPLICIT tag.
6448 [This change does not apply to 0.9.7.]
6450 *) Fix bug in PKCS#12 key generation routines. This was triggered
6451 if a 3DES key was generated with a 0 initial byte. Include
6452 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6453 (but broken) behaviour.
6456 *) Enhance bctest to search for a working bc along $PATH and print
6458 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6460 *) Fix memory leaks in err.c: free err_data string if necessary;
6461 don't write to the wrong index in ERR_set_error_data.
6464 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6468 *) Replace rdtsc with _emit statements for VC++ version 5.
6469 [Jeremy Cooper <jeremy@baymoo.org>]
6471 *) Make it possible to reuse SSLv2 sessions.
6474 *) In copy_email() check for >= 0 as a return value for
6475 X509_NAME_get_index_by_NID() since 0 is a valid index.
6476 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6478 *) Avoid coredump with unsupported or invalid public keys by checking if
6479 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6480 PKCS7_verify() fails with non detached data.
6483 *) Don't use getenv in library functions when run as setuid/setgid.
6484 New function OPENSSL_issetugid().
6487 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6488 due to incorrect handling of multi-threading:
6490 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6492 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6494 3. Count how many times MemCheck_off() has been called so that
6495 nested use can be treated correctly. This also avoids
6496 inband-signalling in the previous code (which relied on the
6497 assumption that thread ID 0 is impossible).
6500 *) Add "-rand" option also to s_client and s_server.
6503 *) Fix CPU detection on Irix 6.x.
6504 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6505 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6507 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6510 [This change does not apply to 0.9.7.]
6512 *) Use the cached encoding of an X509_NAME structure rather than
6513 copying it. This is apparently the reason for the libsafe "errors"
6514 but the code is actually correct.
6517 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6518 Bleichenbacher's DSA attack.
6519 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6520 to be set and top=0 forces the highest bit to be set; top=-1 is new
6521 and leaves the highest bit random.
6522 [Ulf Moeller, Bodo Moeller]
6524 *) In the NCONF_...-based implementations for CONF_... queries
6525 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6526 a temporary CONF structure with the data component set to NULL
6527 (which gives segmentation faults in lh_retrieve).
6528 Instead, use NULL for the CONF pointer in CONF_get_string and
6529 CONF_get_number (which may use environment variables) and directly
6530 return NULL from CONF_get_section.
6533 *) Fix potential buffer overrun for EBCDIC.
6536 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6537 keyUsage if basicConstraints absent for a CA.
6540 *) Make SMIME_write_PKCS7() write mail header values with a format that
6541 is more generally accepted (no spaces before the semicolon), since
6542 some programs can't parse those values properly otherwise. Also make
6543 sure BIO's that break lines after each write do not create invalid
6547 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6548 macros previously used would not encode an empty SEQUENCE OF
6549 and break the signature.
6551 [This change does not apply to 0.9.7.]
6553 *) Zero the premaster secret after deriving the master secret in
6557 *) Add some EVP_add_digest_alias registrations (as found in
6558 OpenSSL_add_all_digests()) to SSL_library_init()
6559 aka OpenSSL_add_ssl_algorithms(). This provides improved
6560 compatibility with peers using X.509 certificates
6561 with unconventional AlgorithmIdentifier OIDs.
6564 *) Fix for Irix with NO_ASM.
6565 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6567 *) ./config script fixes.
6568 [Ulf Moeller, Richard Levitte]
6570 *) Fix 'openssl passwd -1'.
6573 *) Change PKCS12_key_gen_asc() so it can cope with non null
6574 terminated strings whose length is passed in the passlen
6575 parameter, for example from PEM callbacks. This was done
6576 by adding an extra length parameter to asc2uni().
6577 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6579 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6580 call failed, free the DSA structure.
6583 *) Fix to uni2asc() to cope with zero length Unicode strings.
6584 These are present in some PKCS#12 files.
6587 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6588 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6589 when writing a 32767 byte record.
6590 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6592 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6593 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6595 (RSA objects have a reference count access to which is protected
6596 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6597 so they are meant to be shared between threads.)
6598 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6599 "Reddie, Steven" <Steven.Reddie@ca.com>]
6601 *) Fix a deadlock in CRYPTO_mem_leaks().
6604 *) Use better test patterns in bntest.
6607 *) rand_win.c fix for Borland C.
6610 *) BN_rshift bugfix for n == 0.
6613 *) Add a 'bctest' script that checks for some known 'bc' bugs
6614 so that 'make test' does not abort just because 'bc' is broken.
6617 *) Store verify_result within SSL_SESSION also for client side to
6618 avoid potential security hole. (Re-used sessions on the client side
6619 always resulted in verify_result==X509_V_OK, not using the original
6620 result of the server certificate verification.)
6623 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6624 SSL3_RT_APPLICATION_DATA, return 0.
6625 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6629 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6630 releases, have been re-implemented by renaming the previous
6631 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6632 and ssl3_read_internal, respectively, and adding 'peek' parameters
6633 to them. The new ssl[23]_{read,peek} functions are calls to
6634 ssl[23]_read_internal with the 'peek' flag set appropriately.
6635 A 'peek' parameter has also been added to ssl3_read_bytes, which
6636 does the actual work for ssl3_read_internal.
6639 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6640 the method-specific "init()" handler. Also clean up ex_data after
6641 calling the method-specific "finish()" handler. Previously, this was
6642 happening the other way round.
6645 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6646 The previous value, 12, was not always sufficient for BN_mod_exp().
6649 *) Make sure that shared libraries get the internal name engine with
6650 the full version number and not just 0. This should mark the
6651 shared libraries as not backward compatible. Of course, this should
6652 be changed again when we can guarantee backward binary compatibility.
6655 *) Fix typo in get_cert_by_subject() in by_dir.c
6656 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6658 *) Rework the system to generate shared libraries:
6660 - Make note of the expected extension for the shared libraries and
6661 if there is a need for symbolic links from for example libcrypto.so.0
6662 to libcrypto.so.0.9.7. There is extended info in Configure for
6665 - Make as few rebuilds of the shared libraries as possible.
6667 - Still avoid linking the OpenSSL programs with the shared libraries.
6669 - When installing, install the shared libraries separately from the
6673 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6675 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6676 and not in SSL_clear because the latter is also used by the
6677 accept/connect functions; previously, the settings made by
6678 SSL_set_read_ahead would be lost during the handshake.
6679 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6681 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6682 Previously, it would create entries for disableed algorithms no
6686 *) Added several new manual pages for SSL_* function.
6689 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6691 *) In ssl23_get_client_hello, generate an error message when faced
6692 with an initial SSL 3.0/TLS record that is too small to contain the
6693 first two bytes of the ClientHello message, i.e. client_version.
6694 (Note that this is a pathologic case that probably has never happened
6695 in real life.) The previous approach was to use the version number
6696 from the record header as a substitute; but our protocol choice
6697 should not depend on that one because it is not authenticated
6698 by the Finished messages.
6701 *) More robust randomness gathering functions for Windows.
6702 [Jeffrey Altman <jaltman@columbia.edu>]
6704 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6705 not set then we don't setup the error code for issuer check errors
6706 to avoid possibly overwriting other errors which the callback does
6707 handle. If an application does set the flag then we assume it knows
6708 what it is doing and can handle the new informational codes
6712 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6713 a general "ANY" type, as such it should be able to decode anything
6714 including tagged types. However it didn't check the class so it would
6715 wrongly interpret tagged types in the same way as their universal
6716 counterpart and unknown types were just rejected. Changed so that the
6717 tagged and unknown types are handled in the same way as a SEQUENCE:
6718 that is the encoding is stored intact. There is also a new type
6719 "V_ASN1_OTHER" which is used when the class is not universal, in this
6720 case we have no idea what the actual type is so we just lump them all
6724 *) On VMS, stdout may very well lead to a file that is written to
6725 in a record-oriented fashion. That means that every write() will
6726 write a separate record, which will be read separately by the
6727 programs trying to read from it. This can be very confusing.
6729 The solution is to put a BIO filter in the way that will buffer
6730 text until a linefeed is reached, and then write everything a
6731 line at a time, so every record written will be an actual line,
6732 not chunks of lines and not (usually doesn't happen, but I've
6733 seen it once) several lines in one record. BIO_f_linebuffer() is
6736 Currently, it's a VMS-only method, because that's where it has
6737 been tested well enough.
6740 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6741 it can return incorrect results.
6742 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6743 but it was in 0.9.6-beta[12].)
6746 *) Disable the check for content being present when verifying detached
6747 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6748 include zero length content when signing messages.
6751 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6752 BIO_ctrl (for BIO pairs).
6755 *) Add DSO method for VMS.
6758 *) Bug fix: Montgomery multiplication could produce results with the
6762 *) Add RPM specification openssl.spec and modify it to build three
6763 packages. The default package contains applications, application
6764 documentation and run-time libraries. The devel package contains
6765 include files, static libraries and function documentation. The
6766 doc package contains the contents of the doc directory. The original
6767 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6770 *) Add a large number of documentation files for many SSL routines.
6771 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6773 *) Add a configuration entry for Sony News 4.
6774 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6776 *) Don't set the two most significant bits to one when generating a
6777 random number < q in the DSA library.
6780 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6781 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6782 the underlying transport is blocking) if a handshake took place.
6783 (The default behaviour is needed by applications such as s_client
6784 and s_server that use select() to determine when to use SSL_read;
6785 but for applications that know in advance when to expect data, it
6786 just makes things more complicated.)
6789 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6793 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6794 work better on such systems.
6795 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6797 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6798 Update PKCS12_parse() so it copies the friendlyName and the
6799 keyid to the certificates aux info.
6802 *) Fix bug in PKCS7_verify() which caused an infinite loop
6803 if there was more than one signature.
6804 [Sven Uszpelkat <su@celocom.de>]
6806 *) Major change in util/mkdef.pl to include extra information
6807 about each symbol, as well as presentig variables as well
6808 as functions. This change means that there's n more need
6809 to rebuild the .num files when some algorithms are excluded.
6812 *) Allow the verify time to be set by an application,
6813 rather than always using the current time.
6816 *) Phase 2 verify code reorganisation. The certificate
6817 verify code now looks up an issuer certificate by a
6818 number of criteria: subject name, authority key id
6819 and key usage. It also verifies self signed certificates
6820 by the same criteria. The main comparison function is
6821 X509_check_issued() which performs these checks.
6823 Lot of changes were necessary in order to support this
6824 without completely rewriting the lookup code.
6826 Authority and subject key identifier are now cached.
6828 The LHASH 'certs' is X509_STORE has now been replaced
6829 by a STACK_OF(X509_OBJECT). This is mainly because an
6830 LHASH can't store or retrieve multiple objects with
6831 the same hash value.
6833 As a result various functions (which were all internal
6834 use only) have changed to handle the new X509_STORE
6835 structure. This will break anything that messed round
6836 with X509_STORE internally.
6838 The functions X509_STORE_add_cert() now checks for an
6839 exact match, rather than just subject name.
6841 The X509_STORE API doesn't directly support the retrieval
6842 of multiple certificates matching a given criteria, however
6843 this can be worked round by performing a lookup first
6844 (which will fill the cache with candidate certificates)
6845 and then examining the cache for matches. This is probably
6846 the best we can do without throwing out X509_LOOKUP
6847 entirely (maybe later...).
6849 The X509_VERIFY_CTX structure has been enhanced considerably.
6851 All certificate lookup operations now go via a get_issuer()
6852 callback. Although this currently uses an X509_STORE it
6853 can be replaced by custom lookups. This is a simple way
6854 to bypass the X509_STORE hackery necessary to make this
6855 work and makes it possible to use more efficient techniques
6856 in future. A very simple version which uses a simple
6857 STACK for its trusted certificate store is also provided
6858 using X509_STORE_CTX_trusted_stack().
6860 The verify_cb() and verify() callbacks now have equivalents
6861 in the X509_STORE_CTX structure.
6863 X509_STORE_CTX also has a 'flags' field which can be used
6864 to customise the verify behaviour.
6867 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6868 excludes S/MIME capabilities.
6871 *) When a certificate request is read in keep a copy of the
6872 original encoding of the signed data and use it when outputing
6873 again. Signatures then use the original encoding rather than
6874 a decoded, encoded version which may cause problems if the
6875 request is improperly encoded.
6878 *) For consistency with other BIO_puts implementations, call
6879 buffer_write(b, ...) directly in buffer_puts instead of calling
6882 In BIO_puts, increment b->num_write as in BIO_write.
6883 [Peter.Sylvester@EdelWeb.fr]
6885 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6886 BN_zero, we may not return a BIGNUM with an array consisting of
6890 *) Avoid calling abort() from within the library when problems are
6891 detected, except if preprocessor symbols have been defined
6892 (such as REF_CHECK, BN_DEBUG etc.).
6895 *) New openssl application 'rsautl'. This utility can be
6896 used for low level RSA operations. DER public key
6897 BIO/fp routines also added.
6900 *) New Configure entry and patches for compiling on QNX 4.
6901 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6903 *) A demo state-machine implementation was sponsored by
6904 Nuron (http://www.nuron.com/) and is now available in
6905 demos/state_machine.
6908 *) New options added to the 'dgst' utility for signature
6909 generation and verification.
6912 *) Unrecognized PKCS#7 content types are now handled via a
6913 catch all ASN1_TYPE structure. This allows unsupported
6914 types to be stored as a "blob" and an application can
6915 encode and decode it manually.
6918 *) Fix various signed/unsigned issues to make a_strex.c
6920 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6922 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6923 length if passed a buffer. ASN1_INTEGER_to_BN failed
6924 if passed a NULL BN and its argument was negative.
6925 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6927 *) Modification to PKCS#7 encoding routines to output definite
6928 length encoding. Since currently the whole structures are in
6929 memory there's not real point in using indefinite length
6930 constructed encoding. However if OpenSSL is compiled with
6931 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6934 *) Added BIO_vprintf() and BIO_vsnprintf().
6937 *) Added more prefixes to parse for in the the strings written
6938 through a logging bio, to cover all the levels that are available
6939 through syslog. The prefixes are now:
6941 PANIC, EMERG, EMR => LOG_EMERG
6942 ALERT, ALR => LOG_ALERT
6943 CRIT, CRI => LOG_CRIT
6944 ERROR, ERR => LOG_ERR
6945 WARNING, WARN, WAR => LOG_WARNING
6946 NOTICE, NOTE, NOT => LOG_NOTICE
6947 INFO, INF => LOG_INFO
6948 DEBUG, DBG => LOG_DEBUG
6950 and as before, if none of those prefixes are present at the
6951 beginning of the string, LOG_ERR is chosen.
6953 On Win32, the LOG_* levels are mapped according to this:
6955 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6956 LOG_WARNING => EVENTLOG_WARNING_TYPE
6957 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6961 *) Made it possible to reconfigure with just the configuration
6962 argument "reconf" or "reconfigure". The command line arguments
6963 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6964 and are retrieved from there when reconfiguring.
6968 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6970 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6973 *) The obj_dat.pl script was messing up the sorting of object
6974 names. The reason was that it compared the quoted version
6975 of strings as a result "OCSP" > "OCSP Signing" because
6976 " > SPACE. Changed script to store unquoted versions of
6977 names and add quotes on output. It was also omitting some
6978 names from the lookup table if they were given a default
6979 value (that is if SN is missing it is given the same
6980 value as LN and vice versa), these are now added on the
6981 grounds that if an object has a name we should be able to
6982 look it up. Finally added warning output when duplicate
6983 short or long names are found.
6986 *) Changes needed for Tandem NSK.
6987 [Scott Uroff <scott@xypro.com>]
6989 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6990 RSA_padding_check_SSLv23(), special padding was never detected
6991 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6992 version rollback attacks was not effective.
6994 In s23_clnt.c, don't use special rollback-attack detection padding
6995 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6996 client; similarly, in s23_srvr.c, don't do the rollback check if
6997 SSL 2.0 is the only protocol enabled in the server.
7000 *) Make it possible to get hexdumps of unprintable data with 'openssl
7001 asn1parse'. By implication, the functions ASN1_parse_dump() and
7002 BIO_dump_indent() are added.
7005 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7006 these print out strings and name structures based on various
7007 flags including RFC2253 support and proper handling of
7008 multibyte characters. Added options to the 'x509' utility
7009 to allow the various flags to be set.
7012 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7013 Also change the functions X509_cmp_current_time() and
7014 X509_gmtime_adj() work with an ASN1_TIME structure,
7015 this will enable certificates using GeneralizedTime in validity
7016 dates to be checked.
7019 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7020 negative public key encodings) on by default,
7021 NO_NEG_PUBKEY_BUG can be set to disable it.
7024 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7025 content octets. An i2c_ASN1_OBJECT is unnecessary because
7026 the encoding can be trivially obtained from the structure.
7029 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7030 not read locks (CRYPTO_r_[un]lock).
7033 *) A first attempt at creating official support for shared
7034 libraries through configuration. I've kept it so the
7035 default is static libraries only, and the OpenSSL programs
7036 are always statically linked for now, but there are
7037 preparations for dynamic linking in place.
7038 This has been tested on Linux and Tru64.
7041 *) Randomness polling function for Win9x, as described in:
7042 Peter Gutmann, Software Generation of Practically Strong
7046 *) Fix so PRNG is seeded in req if using an already existing
7050 *) New options to smime application. -inform and -outform
7051 allow alternative formats for the S/MIME message including
7052 PEM and DER. The -content option allows the content to be
7053 specified separately. This should allow things like Netscape
7054 form signing output easier to verify.
7057 *) Fix the ASN1 encoding of tags using the 'long form'.
7060 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7061 STRING types. These convert content octets to and from the
7062 underlying type. The actual tag and length octets are
7063 already assumed to have been read in and checked. These
7064 are needed because all other string types have virtually
7065 identical handling apart from the tag. By having versions
7066 of the ASN1 functions that just operate on content octets
7067 IMPLICIT tagging can be handled properly. It also allows
7068 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7069 and ASN1_INTEGER are identical apart from the tag.
7072 *) Change the handling of OID objects as follows:
7074 - New object identifiers are inserted in objects.txt, following
7075 the syntax given in objects.README.
7076 - objects.pl is used to process obj_mac.num and create a new
7078 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7081 This is currently kind of a hack, and the perl code in objects.pl
7082 isn't very elegant, but it works as I intended. The simplest way
7083 to check that it worked correctly is to look in obj_dat.h and
7084 check the array nid_objs and make sure the objects haven't moved
7085 around (this is important!). Additions are OK, as well as
7086 consistent name changes.
7089 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7092 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7093 The given file adds to whatever has already been seeded into the
7094 random pool through the RANDFILE configuration file option or
7095 environment variable, or the default random state file.
7098 *) mkstack.pl now sorts each macro group into lexical order.
7099 Previously the output order depended on the order the files
7100 appeared in the directory, resulting in needless rewriting
7104 *) Patches to make OpenSSL compile under Win32 again. Mostly
7105 work arounds for the VC++ problem that it treats func() as
7106 func(void). Also stripped out the parts of mkdef.pl that
7107 added extra typesafe functions: these no longer exist.
7110 *) Reorganisation of the stack code. The macros are now all
7111 collected in safestack.h . Each macro is defined in terms of
7112 a "stack macro" of the form SKM_<name>(type, a, b). The
7113 DEBUG_SAFESTACK is now handled in terms of function casts,
7114 this has the advantage of retaining type safety without the
7115 use of additional functions. If DEBUG_SAFESTACK is not defined
7116 then the non typesafe macros are used instead. Also modified the
7117 mkstack.pl script to handle the new form. Needs testing to see
7118 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7119 the default if no major problems. Similar behaviour for ASN1_SET_OF
7120 and PKCS12_STACK_OF.
7123 *) When some versions of IIS use the 'NET' form of private key the
7124 key derivation algorithm is different. Normally MD5(password) is
7125 used as a 128 bit RC4 key. In the modified case
7126 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7127 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7128 as the old Netscape_RSA functions except they have an additional
7129 'sgckey' parameter which uses the modified algorithm. Also added
7130 an -sgckey command line option to the rsa utility. Thanks to
7131 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7132 algorithm to openssl-dev.
7135 *) The evp_local.h macros were using 'c.##kname' which resulted in
7136 invalid expansion on some systems (SCO 5.0.5 for example).
7137 Corrected to 'c.kname'.
7138 [Phillip Porch <root@theporch.com>]
7140 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7141 a STACK of email addresses from a certificate or request, these look
7142 in the subject name and the subject alternative name extensions and
7143 omit any duplicate addresses.
7146 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7147 This makes DSA verification about 2 % faster.
7150 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7151 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7152 plus overhead for 1024 bit moduli).
7153 This makes exponentiations about 0.5 % faster for 1024 bit
7154 exponents (as measured by "openssl speed rsa2048").
7157 *) Rename memory handling macros to avoid conflicts with other
7159 Malloc => OPENSSL_malloc
7160 Malloc_locked => OPENSSL_malloc_locked
7161 Realloc => OPENSSL_realloc
7162 Free => OPENSSL_free
7165 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7166 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7169 *) CygWin32 support.
7170 [John Jarvie <jjarvie@newsguy.com>]
7172 *) The type-safe stack code has been rejigged. It is now only compiled
7173 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7174 by default all type-specific stack functions are "#define"d back to
7175 standard stack functions. This results in more streamlined output
7176 but retains the type-safety checking possibilities of the original
7180 *) The STACK code has been cleaned up, and certain type declarations
7181 that didn't make a lot of sense have been brought in line. This has
7182 also involved a cleanup of sorts in safestack.h to more correctly
7183 map type-safe stack functions onto their plain stack counterparts.
7184 This work has also resulted in a variety of "const"ifications of
7185 lots of the code, especially "_cmp" operations which should normally
7186 be prototyped with "const" parameters anyway.
7189 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7190 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7191 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7192 where all of 'md' is used each time the PRNG is used, but 'state'
7193 is used only indexed by a cyclic counter. As entropy may not be
7194 well distributed from the beginning, 'md' is important as a
7195 chaining variable. However, the output function chains only half
7196 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7197 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7198 in all of 'state' being rewritten, with the new values depending
7199 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7202 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7203 the handshake is continued after ssl_verify_cert_chain();
7204 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7205 can lead to 'unexplainable' connection aborts later.
7206 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7208 *) Major EVP API cipher revision.
7209 Add hooks for extra EVP features. This allows various cipher
7210 parameters to be set in the EVP interface. Support added for variable
7211 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7212 setting of RC2 and RC5 parameters.
7214 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7217 Remove lots of duplicated code from the EVP library. For example *every*
7218 cipher init() function handles the 'iv' in the same way according to the
7219 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7220 for CFB and OFB modes they zero ctx->num.
7222 New functionality allows removal of S/MIME code RC2 hack.
7224 Most of the routines have the same form and so can be declared in terms
7227 By shifting this to the top level EVP_CipherInit() it can be removed from
7228 all individual ciphers. If the cipher wants to handle IVs or keys
7229 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7232 Change lots of functions like EVP_EncryptUpdate() to now return a
7233 value: although software versions of the algorithms cannot fail
7234 any installed hardware versions can.
7237 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7238 this option is set, tolerate broken clients that send the negotiated
7239 protocol version number instead of the requested protocol version
7243 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7244 i.e. non-zero for export ciphersuites, zero otherwise.
7245 Previous versions had this flag inverted, inconsistent with
7246 rsa_tmp_cb (..._TMP_RSA_CB).
7247 [Bodo Moeller; problem reported by Amit Chopra]
7249 *) Add missing DSA library text string. Work around for some IIS
7250 key files with invalid SEQUENCE encoding.
7253 *) Add a document (doc/standards.txt) that list all kinds of standards
7254 and so on that are implemented in OpenSSL.
7257 *) Enhance c_rehash script. Old version would mishandle certificates
7258 with the same subject name hash and wouldn't handle CRLs at all.
7259 Added -fingerprint option to crl utility, to support new c_rehash
7263 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7266 *) Fix for SSL server purpose checking. Server checking was
7267 rejecting certificates which had extended key usage present
7268 but no ssl client purpose.
7269 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7271 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7272 is a little unclear about how a blank password is handled.
7273 Since the password in encoded as a BMPString with terminating
7274 double NULL a zero length password would end up as just the
7275 double NULL. However no password at all is different and is
7276 handled differently in the PKCS#12 key generation code. NS
7277 treats a blank password as zero length. MSIE treats it as no
7278 password on export: but it will try both on import. We now do
7279 the same: PKCS12_parse() tries zero length and no password if
7280 the password is set to "" or NULL (NULL is now a valid password:
7281 it wasn't before) as does the pkcs12 application.
7284 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7285 perror when PEM_read_bio_X509_REQ fails, the error message must
7286 be obtained from the error queue.
7289 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7290 it in ERR_remove_state if appropriate, and change ERR_get_state
7291 accordingly to avoid race conditions (this is necessary because
7292 thread_hash is no longer constant once set).
7295 *) Bugfix for linux-elf makefile.one.
7298 *) RSA_get_default_method() will now cause a default
7299 RSA_METHOD to be chosen if one doesn't exist already.
7300 Previously this was only set during a call to RSA_new()
7301 or RSA_new_method(NULL) meaning it was possible for
7302 RSA_get_default_method() to return NULL.
7305 *) Added native name translation to the existing DSO code
7306 that will convert (if the flag to do so is set) filenames
7307 that are sufficiently small and have no path information
7308 into a canonical native form. Eg. "blah" converted to
7309 "libblah.so" or "blah.dll" etc.
7312 *) New function ERR_error_string_n(e, buf, len) which is like
7313 ERR_error_string(e, buf), but writes at most 'len' bytes
7314 including the 0 terminator. For ERR_error_string_n, 'buf'
7316 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7318 *) CONF library reworked to become more general. A new CONF
7319 configuration file reader "class" is implemented as well as a
7320 new functions (NCONF_*, for "New CONF") to handle it. The now
7321 old CONF_* functions are still there, but are reimplemented to
7322 work in terms of the new functions. Also, a set of functions
7323 to handle the internal storage of the configuration data is
7324 provided to make it easier to write new configuration file
7325 reader "classes" (I can definitely see something reading a
7326 configuration file in XML format, for example), called _CONF_*,
7327 or "the configuration storage API"...
7329 The new configuration file reading functions are:
7331 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7332 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7334 NCONF_default, NCONF_WIN32
7336 NCONF_dump_fp, NCONF_dump_bio
7338 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7339 NCONF_new creates a new CONF object. This works in the same way
7340 as other interfaces in OpenSSL, like the BIO interface.
7341 NCONF_dump_* dump the internal storage of the configuration file,
7342 which is useful for debugging. All other functions take the same
7343 arguments as the old CONF_* functions wth the exception of the
7344 first that must be a `CONF *' instead of a `LHASH *'.
7346 To make it easer to use the new classes with the old CONF_* functions,
7347 the function CONF_set_default_method is provided.
7350 *) Add '-tls1' option to 'openssl ciphers', which was already
7351 mentioned in the documentation but had not been implemented.
7352 (This option is not yet really useful because even the additional
7353 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7356 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7357 OpenSSL-based applications) load shared libraries and bind to
7358 them in a portable way.
7359 [Geoff Thorpe, with contributions from Richard Levitte]
7361 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7363 *) Make sure _lrotl and _lrotr are only used with MSVC.
7365 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7366 (the default implementation of RAND_status).
7368 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7369 to '-clrext' (= clear extensions), as intended and documented.
7370 [Bodo Moeller; inconsistency pointed out by Michael Attili
7373 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7374 was larger than the MD block size.
7375 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7377 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7378 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7379 using the passed key: if the passed key was a private key the result
7380 of X509_print(), for example, would be to print out all the private key
7384 *) des_quad_cksum() byte order bug fix.
7385 [Ulf Möller, using the problem description in krb4-0.9.7, where
7386 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7388 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7390 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7392 *) For easily testing in shell scripts whether some command
7393 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7394 returns with exit code 0 iff no command of the given name is available.
7395 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7396 the output goes to stdout and nothing is printed to stderr.
7397 Additional arguments are always ignored.
7399 Since for each cipher there is a command of the same name,
7400 the 'no-cipher' compilation switches can be tested this way.
7402 ('openssl no-XXX' is not able to detect pseudo-commands such
7403 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7406 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7409 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7410 is set; it will be thrown away anyway because each handshake creates
7412 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7413 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7414 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7415 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7418 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7419 'Q' and 'R' lose their special meanings (quit/renegotiate).
7420 This is part of what -quiet does; unlike -quiet, -ign_eof
7421 does not suppress any output.
7424 *) Add compatibility options to the purpose and trust code. The
7425 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7426 accepts a certificate or CA, this was the previous behaviour,
7427 with all the associated security issues.
7429 X509_TRUST_COMPAT is the old trust behaviour: only and
7430 automatically trust self signed roots in certificate store. A
7431 new trust setting X509_TRUST_DEFAULT is used to specify that
7432 a purpose has no associated trust setting and it should instead
7433 use the value in the default purpose.
7436 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7437 and fix a memory leak.
7440 *) In util/mkerr.pl (which implements 'make errors'), preserve
7441 reason strings from the previous version of the .c file, as
7442 the default to have only downcase letters (and digits) in
7443 automatically generated reasons codes is not always appropriate.
7446 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7447 using strerror. Previously, ERR_reason_error_string() returned
7448 library names as reason strings for SYSerr; but SYSerr is a special
7449 case where small numbers are errno values, not library numbers.
7452 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7453 converts DSA parameters into DH parameters. (When creating parameters,
7454 DSA_generate_parameters is used.)
7457 *) Include 'length' (recommended exponent length) in C code generated
7458 by 'openssl dhparam -C'.
7461 *) The second argument to set_label in perlasm was already being used
7462 so couldn't be used as a "file scope" flag. Moved to third argument
7466 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7467 instead of RAND_bytes for encryption IVs and salts.
7470 *) Include RAND_status() into RAND_METHOD instead of implementing
7471 it only for md_rand.c Otherwise replacing the PRNG by calling
7472 RAND_set_rand_method would be impossible.
7475 *) Don't let DSA_generate_key() enter an infinite loop if the random
7476 number generation fails.
7479 *) New 'rand' application for creating pseudo-random output.
7482 *) Added configuration support for Linux/IA64
7483 [Rolf Haberrecker <rolf@suse.de>]
7485 *) Assembler module support for Mingw32.
7488 *) Shared library support for HPUX (in shlib/).
7489 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7491 *) Shared library support for Solaris gcc.
7492 [Lutz Behnke <behnke@trustcenter.de>]
7494 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7496 *) PKCS7_encrypt() was adding text MIME headers twice because they
7497 were added manually and by SMIME_crlf_copy().
7500 *) In bntest.c don't call BN_rand with zero bits argument.
7501 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7503 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7504 case was implemented. This caused BN_div_recp() to fail occasionally.
7507 *) Add an optional second argument to the set_label() in the perl
7508 assembly language builder. If this argument exists and is set
7509 to 1 it signals that the assembler should use a symbol whose
7510 scope is the entire file, not just the current function. This
7511 is needed with MASM which uses the format label:: for this scope.
7512 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7514 *) Change the ASN1 types so they are typedefs by default. Before
7515 almost all types were #define'd to ASN1_STRING which was causing
7516 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7520 *) Change names of new functions to the new get1/get0 naming
7521 convention: After 'get1', the caller owns a reference count
7522 and has to call ..._free; 'get0' returns a pointer to some
7523 data structure without incrementing reference counters.
7524 (Some of the existing 'get' functions increment a reference
7525 counter, some don't.)
7526 Similarly, 'set1' and 'add1' functions increase reference
7527 counters or duplicate objects.
7530 *) Allow for the possibility of temp RSA key generation failure:
7531 the code used to assume it always worked and crashed on failure.
7534 *) Fix potential buffer overrun problem in BIO_printf().
7535 [Ulf Möller, using public domain code by Patrick Powell; problem
7536 pointed out by David Sacerdote <das33@cornell.edu>]
7538 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7539 RAND_egd() and RAND_status(). In the command line application,
7540 the EGD socket can be specified like a seed file using RANDFILE
7544 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7545 Some CAs (e.g. Verisign) distribute certificates in this form.
7548 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7549 list to exclude them. This means that no special compilation option
7550 is needed to use anonymous DH: it just needs to be included in the
7554 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7555 EVP_MD_type. The old functionality is available in a new macro called
7556 EVP_MD_md(). Change code that uses it and update docs.
7559 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7560 where the 'void *' argument is replaced by a function pointer argument.
7561 Previously 'void *' was abused to point to functions, which works on
7562 many platforms, but is not correct. As these functions are usually
7563 called by macros defined in OpenSSL header files, most source code
7564 should work without changes.
7567 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7568 sections with information on -D... compiler switches used for
7569 compiling the library so that applications can see them. To enable
7570 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7571 must be defined. E.g.,
7572 #define OPENSSL_ALGORITHM_DEFINES
7573 #include <openssl/opensslconf.h>
7574 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7575 [Richard Levitte, Ulf and Bodo Möller]
7577 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7581 *) Change the 'other' type in certificate aux info to a STACK_OF
7582 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7583 the required ASN1 format: arbitrary types determined by an OID.
7586 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7587 argument to 'req'. This is not because the function is newer or
7588 better than others it just uses the work 'NEW' in the certificate
7589 request header lines. Some software needs this.
7592 *) Reorganise password command line arguments: now passwords can be
7593 obtained from various sources. Delete the PEM_cb function and make
7594 it the default behaviour: i.e. if the callback is NULL and the
7595 usrdata argument is not NULL interpret it as a null terminated pass
7596 phrase. If usrdata and the callback are NULL then the pass phrase
7597 is prompted for as usual.
7600 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7601 the support is automatically enabled. The resulting binaries will
7602 autodetect the card and use it if present.
7603 [Ben Laurie and Compaq Inc.]
7605 *) Work around for Netscape hang bug. This sends certificate request
7606 and server done in one record. Since this is perfectly legal in the
7607 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7608 the bugs/SSLv3 entry for more info.
7611 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7614 *) Add -rand argument to smime and pkcs12 applications and read/write
7618 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7621 *) Add command line password options to the remaining applications.
7624 *) Bug fix for BN_div_recp() for numerators with an even number of
7628 *) More tests in bntest.c, and changed test_bn output.
7631 *) ./config recognizes MacOS X now.
7634 *) Bug fix for BN_div() when the first words of num and divsor are
7635 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7638 *) Add support for various broken PKCS#8 formats, and command line
7639 options to produce them.
7642 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7643 get temporary BIGNUMs from a BN_CTX.
7646 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7650 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7651 include a #define from the old name to the new. The original intent
7652 was that statically linked binaries could for example just call
7653 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7654 link with digests. This never worked becayse SSLeay_add_all_digests()
7655 and SSLeay_add_all_ciphers() were in the same source file so calling
7656 one would link with the other. They are now in separate source files.
7659 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7662 *) Use a less unusual form of the Miller-Rabin primality test (it used
7663 a binary algorithm for exponentiation integrated into the Miller-Rabin
7664 loop, our standard modexp algorithms are faster).
7667 *) Support for the EBCDIC character set completed.
7668 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7670 *) Source code cleanups: use const where appropriate, eliminate casts,
7671 use void * instead of char * in lhash.
7674 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7675 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7676 this the server could overwrite ephemeral keys that the client
7680 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7681 using 50 iterations of the Rabin-Miller test.
7683 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7684 iterations of the Rabin-Miller test as required by the appendix
7685 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7686 As BN_is_prime_fasttest includes trial division, DSA parameter
7687 generation becomes much faster.
7689 This implies a change for the callback functions in DSA_is_prime
7690 and DSA_generate_parameters: The callback function is called once
7691 for each positive witness in the Rabin-Miller test, not just
7692 occasionally in the inner loop; and the parameters to the
7693 callback function now provide an iteration count for the outer
7694 loop rather than for the current invocation of the inner loop.
7695 DSA_generate_parameters additionally can call the callback
7696 function with an 'iteration count' of -1, meaning that a
7697 candidate has passed the trial division test (when q is generated
7698 from an application-provided seed, trial division is skipped).
7701 *) New function BN_is_prime_fasttest that optionally does trial
7702 division before starting the Rabin-Miller test and has
7703 an additional BN_CTX * argument (whereas BN_is_prime always
7704 has to allocate at least one BN_CTX).
7705 'callback(1, -1, cb_arg)' is called when a number has passed the
7706 trial division stage.
7709 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7713 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7716 *) New function BN_pseudo_rand().
7719 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7720 bignum version of BN_from_montgomery() with the working code from
7721 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7725 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7726 made it impossible to use the same SSL_SESSION data structure in
7727 SSL2 clients in multiple threads.
7730 *) The return value of RAND_load_file() no longer counts bytes obtained
7731 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7732 to seed the PRNG (previously an explicit byte count was required).
7733 [Ulf Möller, Bodo Möller]
7735 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7736 used (char *) instead of (void *) and had casts all over the place.
7739 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7742 *) Retain source code compatibility for BN_prime_checks macro:
7743 BN_is_prime(..., BN_prime_checks, ...) now uses
7744 BN_prime_checks_for_size to determine the appropriate number of
7745 Rabin-Miller iterations.
7748 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7749 DH_CHECK_P_NOT_SAFE_PRIME.
7750 (Check if this is true? OpenPGP calls them "strong".)
7753 *) Merge the functionality of "dh" and "gendh" programs into a new program
7754 "dhparam". The old programs are retained for now but will handle DH keys
7755 (instead of parameters) in future.
7758 *) Make the ciphers, s_server and s_client programs check the return values
7759 when a new cipher list is set.
7762 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7763 ciphers. Before when the 56bit ciphers were enabled the sorting was
7766 The syntax for the cipher sorting has been extended to support sorting by
7767 cipher-strength (using the strength_bits hard coded in the tables).
7768 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7770 Fix a bug in the cipher-command parser: when supplying a cipher command
7771 string with an "undefined" symbol (neither command nor alphanumeric
7772 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7773 an error is flagged.
7775 Due to the strength-sorting extension, the code of the
7776 ssl_create_cipher_list() function was completely rearranged. I hope that
7777 the readability was also increased :-)
7778 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7780 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7781 for the first serial number and places 2 in the serial number file. This
7782 avoids problems when the root CA is created with serial number zero and
7783 the first user certificate has the same issuer name and serial number
7787 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7788 the new code. Add documentation for this stuff.
7791 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7792 X509_*() to X509at_*() on the grounds that they don't handle X509
7793 structures and behave in an analagous way to the X509v3 functions:
7794 they shouldn't be called directly but wrapper functions should be used
7797 So we also now have some wrapper functions that call the X509at functions
7798 when passed certificate requests. (TO DO: similar things can be done with
7799 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7800 things. Some of these need some d2i or i2d and print functionality
7801 because they handle more complex structures.)
7804 *) Add missing #ifndefs that caused missing symbols when building libssl
7805 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7806 NO_RSA in ssl/s2*.c.
7807 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7809 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7810 has a return value which indicates the quality of the random data
7811 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7812 error queue. New function RAND_pseudo_bytes() generates output that is
7813 guaranteed to be unique but not unpredictable. RAND_add is like
7814 RAND_seed, but takes an extra argument for an entropy estimate
7815 (RAND_seed always assumes full entropy).
7818 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7819 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7820 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7821 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7822 false-positive rate of at most 2^-80 for random input.
7825 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7828 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7829 in the 0.9.5 release), this returns the chain
7830 from an X509_CTX structure with a dup of the stack and all
7831 the X509 reference counts upped: so the stack will exist
7832 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7835 Also make SSL_SESSION_print() print out the verify return
7839 *) Add manpage for the pkcs12 command. Also change the default
7840 behaviour so MAC iteration counts are used unless the new
7841 -nomaciter option is used. This improves file security and
7842 only older versions of MSIE (4.0 for example) need it.
7845 *) Honor the no-xxx Configure options when creating .DEF files.
7848 *) Add PKCS#10 attributes to field table: challengePassword,
7849 unstructuredName and unstructuredAddress. These are taken from
7850 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7851 international characters are used.
7853 More changes to X509_ATTRIBUTE code: allow the setting of types
7854 based on strings. Remove the 'loc' parameter when adding
7855 attributes because these will be a SET OF encoding which is sorted
7859 *) Initial changes to the 'req' utility to allow request generation
7860 automation. This will allow an application to just generate a template
7861 file containing all the field values and have req construct the
7864 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7865 used all over the place including certificate requests and PKCS#7
7866 structures. They are currently handled manually where necessary with
7867 some primitive wrappers for PKCS#7. The new functions behave in a
7868 manner analogous to the X509 extension functions: they allow
7869 attributes to be looked up by NID and added.
7871 Later something similar to the X509V3 code would be desirable to
7872 automatically handle the encoding, decoding and printing of the
7873 more complex types. The string types like challengePassword can
7874 be handled by the string table functions.
7876 Also modified the multi byte string table handling. Now there is
7877 a 'global mask' which masks out certain types. The table itself
7878 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7879 is useful when for example there is only one permissible type
7880 (as in countryName) and using the mask might result in no valid
7884 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7885 SSL_get_peer_finished to allow applications to obtain the latest
7886 Finished messages sent to the peer or expected from the peer,
7887 respectively. (SSL_get_peer_finished is usually the Finished message
7888 actually received from the peer, otherwise the protocol will be aborted.)
7890 As the Finished message are message digests of the complete handshake
7891 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7892 be used for external authentication procedures when the authentication
7893 provided by SSL/TLS is not desired or is not enough.
7896 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7897 the host supports BWX extension and if Compaq C is present on the
7898 $PATH. Just exploiting of the BWX extension results in 20-30%
7899 performance kick for some algorithms, e.g. DES and RC4 to mention
7900 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7904 *) Add support for MS "fast SGC". This is arguably a violation of the
7905 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7906 weak crypto and after checking the certificate is SGC a second one
7907 with strong crypto. MS SGC stops the first handshake after receiving
7908 the server certificate message and sends a second client hello. Since
7909 a server will typically do all the time consuming operations before
7910 expecting any further messages from the client (server key exchange
7911 is the most expensive) there is little difference between the two.
7913 To get OpenSSL to support MS SGC we have to permit a second client
7914 hello message after we have sent server done. In addition we have to
7915 reset the MAC if we do get this second client hello.
7918 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7919 if a DER encoded private key is RSA or DSA traditional format. Changed
7920 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7921 format DER encoded private key. Newer code should use PKCS#8 format which
7922 has the key type encoded in the ASN1 structure. Added DER private key
7923 support to pkcs8 application.
7926 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7927 ciphersuites has been selected (as required by the SSL 3/TLS 1
7928 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7929 is set, we interpret this as a request to violate the specification
7930 (the worst that can happen is a handshake failure, and 'correct'
7931 behaviour would result in a handshake failure anyway).
7934 *) In SSL_CTX_add_session, take into account that there might be multiple
7935 SSL_SESSION structures with the same session ID (e.g. when two threads
7936 concurrently obtain them from an external cache).
7937 The internal cache can handle only one SSL_SESSION with a given ID,
7938 so if there's a conflict, we now throw out the old one to achieve
7942 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7943 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7944 some routines that use cipher OIDs: some ciphers do not have OIDs
7945 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7949 *) Simplify the trust setting structure and code. Now we just have
7950 two sequences of OIDs for trusted and rejected settings. These will
7951 typically have values the same as the extended key usage extension
7952 and any application specific purposes.
7954 The trust checking code now has a default behaviour: it will just
7955 check for an object with the same NID as the passed id. Functions can
7956 be provided to override either the default behaviour or the behaviour
7957 for a given id. SSL client, server and email already have functions
7958 in place for compatibility: they check the NID and also return "trusted"
7959 if the certificate is self signed.
7962 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7963 traditional format into an EVP_PKEY structure.
7966 *) Add a password callback function PEM_cb() which either prompts for
7967 a password if usr_data is NULL or otherwise assumes it is a null
7968 terminated password. Allow passwords to be passed on command line
7969 environment or config files in a few more utilities.
7972 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7973 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7974 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7975 Update documentation.
7978 *) Support for ASN1 "NULL" type. This could be handled before by using
7979 ASN1_TYPE but there wasn't any function that would try to read a NULL
7980 and produce an error if it couldn't. For compatibility we also have
7981 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7982 don't allocate anything because they don't need to.
7985 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7987 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7989 *) Rebuild of the memory allocation routines used by OpenSSL code and
7990 possibly others as well. The purpose is to make an interface that
7991 provide hooks so anyone can build a separate set of allocation and
7992 deallocation routines to be used by OpenSSL, for example memory
7993 pool implementations, or something else, which was previously hard
7994 since Malloc(), Realloc() and Free() were defined as macros having
7995 the values malloc, realloc and free, respectively (except for Win32
7996 compilations). The same is provided for memory debugging code.
7997 OpenSSL already comes with functionality to find memory leaks, but
7998 this gives people a chance to debug other memory problems.
8000 With these changes, a new set of functions and macros have appeared:
8002 CRYPTO_set_mem_debug_functions() [F]
8003 CRYPTO_get_mem_debug_functions() [F]
8004 CRYPTO_dbg_set_options() [F]
8005 CRYPTO_dbg_get_options() [F]
8006 CRYPTO_malloc_debug_init() [M]
8008 The memory debug functions are NULL by default, unless the library
8009 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8010 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8011 gives the standard debugging functions that come with OpenSSL) or
8012 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8013 provided by the library user) must be used. When the standard
8014 debugging functions are used, CRYPTO_dbg_set_options can be used to
8015 request additional information:
8016 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8017 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8019 Also, things like CRYPTO_set_mem_functions will always give the
8020 expected result (the new set of functions is used for allocation
8021 and deallocation) at all times, regardless of platform and compiler
8024 To finish it up, some functions that were never use in any other
8025 way than through macros have a new API and new semantic:
8028 CRYPTO_dbg_realloc()
8031 All macros of value have retained their old syntax.
8032 [Richard Levitte and Bodo Moeller]
8034 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8035 ordering of SMIMECapabilities wasn't in "strength order" and there
8036 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8040 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8041 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8042 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8044 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8045 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8046 functionality to handle multipart/signed properly) and a utility
8047 called 'smime' to call all this stuff. This is based on code I
8048 originally wrote for Celo who have kindly allowed it to be
8049 included in OpenSSL.
8052 *) Add variants des_set_key_checked and des_set_key_unchecked of
8053 des_set_key (aka des_key_sched). Global variable des_check_key
8054 decides which of these is called by des_set_key; this way
8055 des_check_key behaves as it always did, but applications and
8056 the library itself, which was buggy for des_check_key == 1,
8057 have a cleaner way to pick the version they need.
8060 *) New function PKCS12_newpass() which changes the password of a
8064 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8065 dynamic mix. In both cases the ids can be used as an index into the
8066 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8067 functions so they accept a list of the field values and the
8068 application doesn't need to directly manipulate the X509_TRUST
8072 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8076 *) Modify the way the V3 extension code looks up extensions. This now
8077 works in a similar way to the object code: we have some "standard"
8078 extensions in a static table which is searched with OBJ_bsearch()
8079 and the application can add dynamic ones if needed. The file
8080 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8081 updated whenever a new extension is added to the core code and kept
8082 in ext_nid order. There is a simple program 'tabtest.c' which checks
8083 this. New extensions are not added too often so this file can readily
8084 be maintained manually.
8086 There are two big advantages in doing things this way. The extensions
8087 can be looked up immediately and no longer need to be "added" using
8088 X509V3_add_standard_extensions(): this function now does nothing.
8089 [Side note: I get *lots* of email saying the extension code doesn't
8090 work because people forget to call this function]
8091 Also no dynamic allocation is done unless new extensions are added:
8092 so if we don't add custom extensions there is no need to call
8093 X509V3_EXT_cleanup().
8096 *) Modify enc utility's salting as follows: make salting the default. Add a
8097 magic header, so unsalted files fail gracefully instead of just decrypting
8098 to garbage. This is because not salting is a big security hole, so people
8099 should be discouraged from doing it.
8102 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8103 digest to be passed on the command line but it only used this
8104 parameter when signing a certificate. Modified so all relevant
8105 operations are affected by the digest parameter including the
8106 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8107 DSA key was used because it didn't fix the digest.
8110 *) Initial certificate chain verify code. Currently tests the untrusted
8111 certificates for consistency with the verify purpose (which is set
8112 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8114 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8115 this is because it will reject chains with invalid extensions whereas
8116 every previous version of OpenSSL and SSLeay made no checks at all.
8118 Trust code: checks the root CA for the relevant trust settings. Trust
8119 settings have an initial value consistent with the verify purpose: e.g.
8120 if the verify purpose is for SSL client use it expects the CA to be
8121 trusted for SSL client use. However the default value can be changed to
8122 permit custom trust settings: one example of this would be to only trust
8123 certificates from a specific "secure" set of CAs.
8125 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8126 which should be used for version portability: especially since the
8127 verify structure is likely to change more often now.
8129 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8130 to set them. If not set then assume SSL clients will verify SSL servers
8133 Two new options to the verify program: -untrusted allows a set of
8134 untrusted certificates to be passed in and -purpose which sets the
8135 intended purpose of the certificate. If a purpose is set then the
8136 new chain verify code is used to check extension consistency.
8139 *) Support for the authority information access extension.
8142 *) Modify RSA and DSA PEM read routines to transparently handle
8143 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8144 public keys in a format compatible with certificate
8145 SubjectPublicKeyInfo structures. Unfortunately there were already
8146 functions called *_PublicKey_* which used various odd formats so
8147 these are retained for compatibility: however the DSA variants were
8148 never in a public release so they have been deleted. Changed dsa/rsa
8149 utilities to handle the new format: note no releases ever handled public
8150 keys so we should be OK.
8152 The primary motivation for this change is to avoid the same fiasco
8153 that dogs private keys: there are several incompatible private key
8154 formats some of which are standard and some OpenSSL specific and
8155 require various evil hacks to allow partial transparent handling and
8156 even then it doesn't work with DER formats. Given the option anything
8157 other than PKCS#8 should be dumped: but the other formats have to
8158 stay in the name of compatibility.
8160 With public keys and the benefit of hindsight one standard format
8161 is used which works with EVP_PKEY, RSA or DSA structures: though
8162 it clearly returns an error if you try to read the wrong kind of key.
8164 Added a -pubkey option to the 'x509' utility to output the public key.
8165 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8166 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8167 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8168 that do the same as the EVP_PKEY_assign_*() except they up the
8169 reference count of the added key (they don't "swallow" the
8173 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8174 CRLs would fail if the file contained no certificates or no CRLs:
8175 added a new function to read in both types and return the number
8176 read: this means that if none are read it will be an error. The
8177 DER versions of the certificate and CRL reader would always fail
8178 because it isn't possible to mix certificates and CRLs in DER format
8179 without choking one or the other routine. Changed this to just read
8180 a certificate: this is the best we can do. Also modified the code
8181 in apps/verify.c to take notice of return codes: it was previously
8182 attempting to read in certificates from NULL pointers and ignoring
8183 any errors: this is one reason why the cert and CRL reader seemed
8184 to work. It doesn't check return codes from the default certificate
8185 routines: these may well fail if the certificates aren't installed.
8188 *) Code to support otherName option in GeneralName.
8191 *) First update to verify code. Change the verify utility
8192 so it warns if it is passed a self signed certificate:
8193 for consistency with the normal behaviour. X509_verify
8194 has been modified to it will now verify a self signed
8195 certificate if *exactly* the same certificate appears
8196 in the store: it was previously impossible to trust a
8197 single self signed certificate. This means that:
8198 openssl verify ss.pem
8199 now gives a warning about a self signed certificate but
8200 openssl verify -CAfile ss.pem ss.pem
8204 *) For servers, store verify_result in SSL_SESSION data structure
8205 (and add it to external session representation).
8206 This is needed when client certificate verifications fails,
8207 but an application-provided verification callback (set by
8208 SSL_CTX_set_cert_verify_callback) allows accepting the session
8209 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8210 but returns 1): When the session is reused, we have to set
8211 ssl->verify_result to the appropriate error code to avoid
8213 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8215 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8216 case in PKCS7_dataInit() where the signed PKCS7 structure
8217 didn't contain any existing data because it was being created.
8218 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8220 *) Add a salt to the key derivation routines in enc.c. This
8221 forms the first 8 bytes of the encrypted file. Also add a
8222 -S option to allow a salt to be input on the command line.
8225 *) New function X509_cmp(). Oddly enough there wasn't a function
8226 to compare two certificates. We do this by working out the SHA1
8227 hash and comparing that. X509_cmp() will be needed by the trust
8231 *) SSL_get1_session() is like SSL_get_session(), but increments
8232 the reference count in the SSL_SESSION returned.
8233 [Geoff Thorpe <geoff@eu.c2.net>]
8235 *) Fix for 'req': it was adding a null to request attributes.
8236 Also change the X509_LOOKUP and X509_INFO code to handle
8237 certificate auxiliary information.
8240 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8244 *) Add the possibility to add extra information to the memory leak
8245 detecting output, to form tracebacks, showing from where each
8246 allocation was originated: CRYPTO_push_info("constant string") adds
8247 the string plus current file name and line number to a per-thread
8248 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8249 is like calling CYRPTO_pop_info() until the stack is empty.
8250 Also updated memory leak detection code to be multi-thread-safe.
8253 *) Add options -text and -noout to pkcs7 utility and delete the
8254 encryption options which never did anything. Update docs.
8257 *) Add options to some of the utilities to allow the pass phrase
8258 to be included on either the command line (not recommended on
8259 OSes like Unix) or read from the environment. Update the
8260 manpages and fix a few bugs.
8263 *) Add a few manpages for some of the openssl commands.
8266 *) Fix the -revoke option in ca. It was freeing up memory twice,
8267 leaking and not finding already revoked certificates.
8270 *) Extensive changes to support certificate auxiliary information.
8271 This involves the use of X509_CERT_AUX structure and X509_AUX
8272 functions. An X509_AUX function such as PEM_read_X509_AUX()
8273 can still read in a certificate file in the usual way but it
8274 will also read in any additional "auxiliary information". By
8275 doing things this way a fair degree of compatibility can be
8276 retained: existing certificates can have this information added
8277 using the new 'x509' options.
8279 Current auxiliary information includes an "alias" and some trust
8280 settings. The trust settings will ultimately be used in enhanced
8281 certificate chain verification routines: currently a certificate
8282 can only be trusted if it is self signed and then it is trusted
8286 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8287 The problem was that one of the replacement routines had not been working
8288 since SSLeay releases. For now the offending routine has been replaced
8289 with non-optimised assembler. Even so, this now gives around 95%
8290 performance improvement for 1024 bit RSA signs.
8293 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8294 handling. Most clients have the effective key size in bits equal to
8295 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8296 A few however don't do this and instead use the size of the decrypted key
8297 to determine the RC2 key length and the AlgorithmIdentifier to determine
8298 the effective key length. In this case the effective key length can still
8299 be 40 bits but the key length can be 168 bits for example. This is fixed
8300 by manually forcing an RC2 key into the EVP_PKEY structure because the
8301 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8302 the key length and effective key length are equal.
8305 *) Add a bunch of functions that should simplify the creation of
8306 X509_NAME structures. Now you should be able to do:
8307 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8308 and have it automatically work out the correct field type and fill in
8309 the structures. The more adventurous can try:
8310 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8311 and it will (hopefully) work out the correct multibyte encoding.
8314 *) Change the 'req' utility to use the new field handling and multibyte
8315 copy routines. Before the DN field creation was handled in an ad hoc
8316 way in req, ca, and x509 which was rather broken and didn't support
8317 BMPStrings or UTF8Strings. Since some software doesn't implement
8318 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8319 using the dirstring_type option. See the new comment in the default
8320 openssl.cnf for more info.
8323 *) Make crypto/rand/md_rand.c more robust:
8324 - Assure unique random numbers after fork().
8325 - Make sure that concurrent threads access the global counter and
8326 md serializably so that we never lose entropy in them
8327 or use exactly the same state in multiple threads.
8328 Access to the large state is not always serializable because
8329 the additional locking could be a performance killer, and
8330 md should be large enough anyway.
8333 *) New file apps/app_rand.c with commonly needed functionality
8334 for handling the random seed file.
8336 Use the random seed file in some applications that previously did not:
8338 dsaparam -genkey (which also ignored its '-rand' option),
8341 x509 (when signing).
8342 Except on systems with /dev/urandom, it is crucial to have a random
8343 seed file at least for key creation, DSA signing, and for DH exchanges;
8344 for RSA signatures we could do without one.
8346 gendh and gendsa (unlike genrsa) used to read only the first byte
8347 of each file listed in the '-rand' option. The function as previously
8348 found in genrsa is now in app_rand.c and is used by all programs
8349 that support '-rand'.
8352 *) In RAND_write_file, use mode 0600 for creating files;
8353 don't just chmod when it may be too late.
8356 *) Report an error from X509_STORE_load_locations
8357 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8360 *) New function ASN1_mbstring_copy() this copies a string in either
8361 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8362 into an ASN1_STRING type. A mask of permissible types is passed
8363 and it chooses the "minimal" type to use or an error if not type
8367 *) Add function equivalents to the various macros in asn1.h. The old
8368 macros are retained with an M_ prefix. Code inside the library can
8369 use the M_ macros. External code (including the openssl utility)
8370 should *NOT* in order to be "shared library friendly".
8373 *) Add various functions that can check a certificate's extensions
8374 to see if it usable for various purposes such as SSL client,
8375 server or S/MIME and CAs of these types. This is currently
8376 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8377 verification. Also added a -purpose flag to x509 utility to
8378 print out all the purposes.
8381 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8385 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8386 for, obtain and decode and extension and obtain its critical flag.
8387 This allows all the necessary extension code to be handled in a
8388 single function call.
8391 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8392 platforms. See crypto/rc4/rc4_enc.c for further details.
8395 *) New -noout option to asn1parse. This causes no output to be produced
8396 its main use is when combined with -strparse and -out to extract data
8397 from a file (which may not be in ASN.1 format).
8400 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8401 when producing the local key id.
8402 [Richard Levitte <levitte@stacken.kth.se>]
8404 *) New option -dhparam in s_server. This allows a DH parameter file to be
8405 stated explicitly. If it is not stated then it tries the first server
8406 certificate file. The previous behaviour hard coded the filename
8410 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8411 a public key to be input or output. For example:
8412 openssl rsa -in key.pem -pubout -out pubkey.pem
8413 Also added necessary DSA public key functions to handle this.
8416 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8417 in the message. This was handled by allowing
8418 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8419 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8421 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8422 to the end of the strings whereas this didn't. This would cause problems
8423 if strings read with d2i_ASN1_bytes() were later modified.
8424 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8426 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8427 data and it contains EOF it will end up returning an error. This is
8428 caused by input 46 bytes long. The cause is due to the way base64
8429 BIOs find the start of base64 encoded data. They do this by trying a
8430 trial decode on each line until they find one that works. When they
8431 do a flag is set and it starts again knowing it can pass all the
8432 data directly through the decoder. Unfortunately it doesn't reset
8433 the context it uses. This means that if EOF is reached an attempt
8434 is made to pass two EOFs through the context and this causes the
8435 resulting error. This can also cause other problems as well. As is
8436 usual with these problems it takes *ages* to find and the fix is
8437 trivial: move one line.
8438 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8440 *) Ugly workaround to get s_client and s_server working under Windows. The
8441 old code wouldn't work because it needed to select() on sockets and the
8442 tty (for keypresses and to see if data could be written). Win32 only
8443 supports select() on sockets so we select() with a 1s timeout on the
8444 sockets and then see if any characters are waiting to be read, if none
8445 are present then we retry, we also assume we can always write data to
8446 the tty. This isn't nice because the code then blocks until we've
8447 received a complete line of data and it is effectively polling the
8448 keyboard at 1s intervals: however it's quite a bit better than not
8449 working at all :-) A dedicated Windows application might handle this
8450 with an event loop for example.
8453 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8454 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8455 will be called when RSA_sign() and RSA_verify() are used. This is useful
8456 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8457 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8458 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8459 This necessitated the support of an extra signature type NID_md5_sha1
8460 for SSL signatures and modifications to the SSL library to use it instead
8461 of calling RSA_public_decrypt() and RSA_private_encrypt().
8464 *) Add new -verify -CAfile and -CApath options to the crl program, these
8465 will lookup a CRL issuers certificate and verify the signature in a
8466 similar way to the verify program. Tidy up the crl program so it
8467 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8468 less strict. It will now permit CRL extensions even if it is not
8469 a V2 CRL: this will allow it to tolerate some broken CRLs.
8472 *) Initialize all non-automatic variables each time one of the openssl
8473 sub-programs is started (this is necessary as they may be started
8474 multiple times from the "OpenSSL>" prompt).
8475 [Lennart Bang, Bodo Moeller]
8477 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8478 removing all other RSA functionality (this is what NO_RSA does). This
8479 is so (for example) those in the US can disable those operations covered
8480 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8484 *) Non-copying interface to BIO pairs.
8485 (still largely untested)
8488 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8489 ASCII string. This was handled independently in various places before.
8492 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8493 UTF8 strings a character at a time.
8496 *) Use client_version from client hello to select the protocol
8497 (s23_srvr.c) and for RSA client key exchange verification
8498 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8501 *) Add various utility functions to handle SPKACs, these were previously
8502 handled by poking round in the structure internals. Added new function
8503 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8504 print, verify and generate SPKACs. Based on an original idea from
8505 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8508 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8511 *) Allow the config file extension section to be overwritten on the
8512 command line. Based on an original idea from Massimiliano Pala
8513 <madwolf@comune.modena.it>. The new option is called -extensions
8514 and can be applied to ca, req and x509. Also -reqexts to override
8515 the request extensions in req and -crlexts to override the crl extensions
8519 *) Add new feature to the SPKAC handling in ca. Now you can include
8520 the same field multiple times by preceding it by "XXXX." for example:
8523 this is the same syntax as used in the req config file.
8526 *) Allow certificate extensions to be added to certificate requests. These
8527 are specified in a 'req_extensions' option of the req section of the
8528 config file. They can be printed out with the -text option to req but
8529 are otherwise ignored at present.
8532 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8533 data read consists of only the final block it would not decrypted because
8534 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8535 A misplaced 'break' also meant the decrypted final block might not be
8536 copied until the next read.
8539 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8540 a few extra parameters to the DH structure: these will be useful if
8541 for example we want the value of 'q' or implement X9.42 DH.
8544 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8545 provides hooks that allow the default DSA functions or functions on a
8546 "per key" basis to be replaced. This allows hardware acceleration and
8547 hardware key storage to be handled without major modification to the
8548 library. Also added low level modexp hooks and CRYPTO_EX structure and
8549 associated functions.
8552 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8553 as "read only": it can't be written to and the buffer it points to will
8554 not be freed. Reading from a read only BIO is much more efficient than
8555 a normal memory BIO. This was added because there are several times when
8556 an area of memory needs to be read from a BIO. The previous method was
8557 to create a memory BIO and write the data to it, this results in two
8558 copies of the data and an O(n^2) reading algorithm. There is a new
8559 function BIO_new_mem_buf() which creates a read only memory BIO from
8560 an area of memory. Also modified the PKCS#7 routines to use read only
8564 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8565 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8566 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8567 but a retry condition occured while trying to read the rest.
8570 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8571 NID_pkcs7_encrypted by default: this was wrong since this should almost
8572 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8573 the encrypted data type: this is a more sensible place to put it and it
8574 allows the PKCS#12 code to be tidied up that duplicated this
8578 *) Changed obj_dat.pl script so it takes its input and output files on
8579 the command line. This should avoid shell escape redirection problems
8583 *) Initial support for certificate extension requests, these are included
8584 in things like Xenroll certificate requests. Included functions to allow
8585 extensions to be obtained and added.
8588 *) -crlf option to s_client and s_server for sending newlines as
8589 CRLF (as required by many protocols).
8592 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8594 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8595 [Ralf S. Engelschall]
8597 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8598 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8600 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8604 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8605 DH parameters/keys (q is lost during that conversion, but the resulting
8606 DH parameters contain its length).
8608 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8609 much faster than DH_generate_parameters (which creates parameters
8610 where p = 2*q + 1), and also the smaller q makes DH computations
8611 much more efficient (160-bit exponentiation instead of 1024-bit
8612 exponentiation); so this provides a convenient way to support DHE
8613 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8614 utter importance to use
8615 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8617 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8618 when such DH parameters are used, because otherwise small subgroup
8619 attacks may become possible!
8622 *) Avoid memory leak in i2d_DHparams.
8625 *) Allow the -k option to be used more than once in the enc program:
8626 this allows the same encrypted message to be read by multiple recipients.
8629 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8630 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8631 it will always use the numerical form of the OID, even if it has a short
8635 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8636 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8637 otherwise bn_mod_exp was called. In the case of hardware keys for example
8638 no private key components need be present and it might store extra data
8639 in the RSA structure, which cannot be accessed from bn_mod_exp.
8640 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8641 private key operations.
8644 *) Added support for SPARC Linux.
8647 *) pem_password_cb function type incompatibly changed from
8648 typedef int pem_password_cb(char *buf, int size, int rwflag);
8650 ....(char *buf, int size, int rwflag, void *userdata);
8651 so that applications can pass data to their callbacks:
8652 The PEM[_ASN1]_{read,write}... functions and macros now take an
8653 additional void * argument, which is just handed through whenever
8654 the password callback is called.
8655 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8657 New function SSL_CTX_set_default_passwd_cb_userdata.
8659 Compatibility note: As many C implementations push function arguments
8660 onto the stack in reverse order, the new library version is likely to
8661 interoperate with programs that have been compiled with the old
8662 pem_password_cb definition (PEM_whatever takes some data that
8663 happens to be on the stack as its last argument, and the callback
8664 just ignores this garbage); but there is no guarantee whatsoever that
8667 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8668 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8669 problems not only on Windows, but also on some Unix platforms.
8670 To avoid problematic command lines, these definitions are now in an
8671 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8672 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8675 *) MIPS III/IV assembler module is reimplemented.
8678 *) More DES library cleanups: remove references to srand/rand and
8679 delete an unused file.
8682 *) Add support for the the free Netwide assembler (NASM) under Win32,
8683 since not many people have MASM (ml) and it can be hard to obtain.
8684 This is currently experimental but it seems to work OK and pass all
8685 the tests. Check out INSTALL.W32 for info.
8688 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8689 without temporary keys kept an extra copy of the server key,
8690 and connections with temporary keys did not free everything in case
8694 *) New function RSA_check_key and new openssl rsa option -check
8695 for verifying the consistency of RSA keys.
8696 [Ulf Moeller, Bodo Moeller]
8698 *) Various changes to make Win32 compile work:
8699 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8700 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8701 comparison" warnings.
8702 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8705 *) Add a debugging option to PKCS#5 v2 key generation function: when
8706 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8707 derived keys are printed to stderr.
8710 *) Copy the flags in ASN1_STRING_dup().
8711 [Roman E. Pavlov <pre@mo.msk.ru>]
8713 *) The x509 application mishandled signing requests containing DSA
8714 keys when the signing key was also DSA and the parameters didn't match.
8716 It was supposed to omit the parameters when they matched the signing key:
8717 the verifying software was then supposed to automatically use the CA's
8718 parameters if they were absent from the end user certificate.
8720 Omitting parameters is no longer recommended. The test was also
8721 the wrong way round! This was probably due to unusual behaviour in
8722 EVP_cmp_parameters() which returns 1 if the parameters match.
8723 This meant that parameters were omitted when they *didn't* match and
8724 the certificate was useless. Certificates signed with 'ca' didn't have
8726 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8728 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8729 The interface is as follows:
8730 Applications can use
8731 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8732 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8733 "off" is now the default.
8734 The library internally uses
8735 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8736 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8737 to disable memory-checking temporarily.
8739 Some inconsistent states that previously were possible (and were
8740 even the default) are now avoided.
8742 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8743 with each memory chunk allocated; this is occasionally more helpful
8744 than just having a counter.
8746 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8748 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8752 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8753 which largely parallels "options", but is for changing API behaviour,
8754 whereas "options" are about protocol behaviour.
8755 Initial "mode" flags are:
8757 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8758 a single record has been written.
8759 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8760 retries use the same buffer location.
8761 (But all of the contents must be
8765 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8768 *) Fix problems with no-hmac etc.
8769 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8771 *) New functions RSA_get_default_method(), RSA_set_method() and
8772 RSA_get_method(). These allows replacement of RSA_METHODs without having
8773 to mess around with the internals of an RSA structure.
8776 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8777 Also really enable memory leak checks in openssl.c and in some
8779 [Chad C. Mulligan, Bodo Moeller]
8781 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8782 up the length of negative integers. This has now been simplified to just
8783 store the length when it is first determined and use it later, rather
8784 than trying to keep track of where data is copied and updating it to
8786 [Steve Henson, reported by Brien Wheeler
8787 <bwheeler@authentica-security.com>]
8789 *) Add a new function PKCS7_signatureVerify. This allows the verification
8790 of a PKCS#7 signature but with the signing certificate passed to the
8791 function itself. This contrasts with PKCS7_dataVerify which assumes the
8792 certificate is present in the PKCS#7 structure. This isn't always the
8793 case: certificates can be omitted from a PKCS#7 structure and be
8794 distributed by "out of band" means (such as a certificate database).
8797 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8798 function prototypes in pem.h, also change util/mkdef.pl to add the
8799 necessary function names.
8802 *) mk1mf.pl (used by Windows builds) did not properly read the
8803 options set by Configure in the top level Makefile, and Configure
8804 was not even able to write more than one option correctly.
8805 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8808 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8809 file to be loaded from a BIO or FILE pointer. The BIO version will
8810 for example allow memory BIOs to contain config info.
8813 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8814 Whoever hopes to achieve shared-library compatibility across versions
8815 must use this, not the compile-time macro.
8816 (Exercise 0.9.4: Which is the minimum library version required by
8818 Note: All this applies only to multi-threaded programs, others don't
8822 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8823 through a BIO pair triggered the default case, i.e.
8824 SSLerr(...,SSL_R_UNKNOWN_STATE).
8827 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8828 can use the SSL library even if none of the specific BIOs is
8832 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8833 for the encoded length.
8834 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8836 *) Add initial documentation of the X509V3 functions.
8839 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8840 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8841 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8842 secure PKCS#8 private key format with a high iteration count.
8845 *) Fix determination of Perl interpreter: A perl or perl5
8846 _directory_ in $PATH was also accepted as the interpreter.
8847 [Ralf S. Engelschall]
8849 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8850 wrong with it but it was very old and did things like calling
8851 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8855 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8856 to use the new extension code.
8859 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8860 with macros. This should make it easier to change their form, add extra
8861 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8865 *) Add to configuration table a new entry that can specify an alternative
8866 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8867 according to Mark Crispin <MRC@Panda.COM>.
8871 *) DES CBC did not update the IV. Weird.
8874 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8875 Changing the behaviour of the former might break existing programs --
8876 where IV updating is needed, des_ncbc_encrypt can be used.
8879 *) When bntest is run from "make test" it drives bc to check its
8880 calculations, as well as internally checking them. If an internal check
8881 fails, it needs to cause bc to give a non-zero result or make test carries
8882 on without noticing the failure. Fixed.
8885 *) DES library cleanups.
8888 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8889 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8890 ciphers. NOTE: although the key derivation function has been verified
8891 against some published test vectors it has not been extensively tested
8892 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8896 *) Instead of "mkdir -p", which is not fully portable, use new
8897 Perl script "util/mkdir-p.pl".
8900 *) Rewrite the way password based encryption (PBE) is handled. It used to
8901 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8902 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8903 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8904 the 'parameter' field of the AlgorithmIdentifier is passed to the
8905 underlying key generation function so it must do its own ASN1 parsing.
8906 This has also changed the EVP_PBE_CipherInit() function which now has a
8907 'parameter' argument instead of literal salt and iteration count values
8908 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8911 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8912 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8913 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8914 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8915 value was just used as a "magic string" and not used directly its
8916 value doesn't matter.
8919 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8923 *) "linux-sparc64" configuration (ultrapenguin).
8924 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8925 "linux-sparc" configuration.
8926 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8928 *) config now generates no-xxx options for missing ciphers.
8931 *) Support the EBCDIC character set (work in progress).
8932 File ebcdic.c not yet included because it has a different license.
8933 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8935 *) Support BS2000/OSD-POSIX.
8936 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8938 *) Make callbacks for key generation use void * instead of char *.
8941 *) Make S/MIME samples compile (not yet tested).
8944 *) Additional typesafe stacks.
8947 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8951 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8953 *) New configuration variant "sco5-gcc".
8955 *) Updated some demos.
8956 [Sean O Riordain, Wade Scholine]
8958 *) Add missing BIO_free at exit of pkcs12 application.
8961 *) Fix memory leak in conf.c.
8964 *) Updates for Win32 to assembler version of MD5.
8967 *) Set #! path to perl in apps/der_chop to where we found it
8968 instead of using a fixed path.
8971 *) SHA library changes for irix64-mips4-cc.
8974 *) Improvements for VMS support.
8978 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8980 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8981 This also avoids the problems with SC4.2 and unpatched SC5.
8982 [Andy Polyakov <appro@fy.chalmers.se>]
8984 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8985 These are required because of the typesafe stack would otherwise break
8986 existing code. If old code used a structure member which used to be STACK
8987 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8988 sk_num or sk_value it would produce an error because the num, data members
8989 are not present in STACK_OF. Now it just produces a warning. sk_set
8990 replaces the old method of assigning a value to sk_value
8991 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8992 that does this will no longer work (and should use sk_set instead) but
8993 this could be regarded as a "questionable" behaviour anyway.
8996 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8997 correctly handle encrypted S/MIME data.
9000 *) Change type of various DES function arguments from des_cblock
9001 (which means, in function argument declarations, pointer to char)
9002 to des_cblock * (meaning pointer to array with 8 char elements),
9003 which allows the compiler to do more typechecking; it was like
9004 that back in SSLeay, but with lots of ugly casts.
9006 Introduce new type const_des_cblock.
9009 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9010 problems: find RecipientInfo structure that matches recipient certificate
9011 and initialise the ASN1 structures properly based on passed cipher.
9014 *) Belatedly make the BN tests actually check the results.
9017 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9018 to and from BNs: it was completely broken. New compilation option
9019 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9020 key elements as negative integers.
9023 *) Reorganize and speed up MD5.
9024 [Andy Polyakov <appro@fy.chalmers.se>]
9027 [Richard Levitte <richard@levitte.org>]
9029 *) New option -out to asn1parse to allow the parsed structure to be
9030 output to a file. This is most useful when combined with the -strparse
9031 option to examine the output of things like OCTET STRINGS.
9034 *) Make SSL library a little more fool-proof by not requiring any longer
9035 that SSL_set_{accept,connect}_state be called before
9036 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9037 in many applications because usually everything *appeared* to work as
9038 intended anyway -- now it really works as intended).
9041 *) Move openssl.cnf out of lib/.
9044 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9045 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9046 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9047 [Ralf S. Engelschall]
9049 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9050 handle PKCS#7 enveloped data properly.
9051 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9053 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9054 copying pointers. The cert_st handling is changed by this in
9055 various ways (and thus what used to be known as ctx->default_cert
9056 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9057 any longer when s->cert does not give us what we need).
9058 ssl_cert_instantiate becomes obsolete by this change.
9059 As soon as we've got the new code right (possibly it already is?),
9060 we have solved a couple of bugs of the earlier code where s->cert
9061 was used as if it could not have been shared with other SSL structures.
9063 Note that using the SSL API in certain dirty ways now will result
9064 in different behaviour than observed with earlier library versions:
9065 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9066 does not influence s as it used to.
9068 In order to clean up things more thoroughly, inside SSL_SESSION
9069 we don't use CERT any longer, but a new structure SESS_CERT
9070 that holds per-session data (if available); currently, this is
9071 the peer's certificate chain and, for clients, the server's certificate
9072 and temporary key. CERT holds only those values that can have
9073 meaningful defaults in an SSL_CTX.
9076 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9077 from the internal representation. Various PKCS#7 fixes: remove some
9078 evil casts and set the enc_dig_alg field properly based on the signing
9082 *) Allow PKCS#12 password to be set from the command line or the
9083 environment. Let 'ca' get its config file name from the environment
9084 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9088 *) Allow certificate policies extension to use an IA5STRING for the
9089 organization field. This is contrary to the PKIX definition but
9090 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9094 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9095 without disallowing inline assembler and the like for non-pedantic builds.
9098 *) Support Borland C++ builder.
9099 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9104 *) SHA-1 cleanups and performance enhancements.
9105 [Andy Polyakov <appro@fy.chalmers.se>]
9107 *) Sparc v8plus assembler for the bignum library.
9108 [Andy Polyakov <appro@fy.chalmers.se>]
9110 *) Accept any -xxx and +xxx compiler options in Configure.
9113 *) Update HPUX configuration.
9116 *) Add missing sk_<type>_unshift() function to safestack.h
9117 [Ralf S. Engelschall]
9119 *) New function SSL_CTX_use_certificate_chain_file that sets the
9120 "extra_cert"s in addition to the certificate. (This makes sense
9121 only for "PEM" format files, as chains as a whole are not
9125 *) Support verify_depth from the SSL API.
9126 x509_vfy.c had what can be considered an off-by-one-error:
9127 Its depth (which was not part of the external interface)
9128 was actually counting the number of certificates in a chain;
9129 now it really counts the depth.
9132 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9133 instead of X509err, which often resulted in confusing error
9134 messages since the error codes are not globally unique
9135 (e.g. an alleged error in ssl3_accept when a certificate
9136 didn't match the private key).
9138 *) New function SSL_CTX_set_session_id_context that allows to set a default
9139 value (so that you don't need SSL_set_session_id_context for each
9140 connection using the SSL_CTX).
9143 *) OAEP decoding bug fix.
9146 *) Support INSTALL_PREFIX for package builders, as proposed by
9150 *) New Configure options "threads" and "no-threads". For systems
9151 where the proper compiler options are known (currently Solaris
9152 and Linux), "threads" is the default.
9155 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9158 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9159 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9160 such as /usr/local/bin.
9163 *) "make linux-shared" to build shared libraries.
9164 [Niels Poppe <niels@netbox.org>]
9166 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9169 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9170 extension adding in x509 utility.
9173 *) Remove NOPROTO sections and error code comments.
9176 *) Partial rewrite of the DEF file generator to now parse the ANSI
9180 *) New Configure options --prefix=DIR and --openssldir=DIR.
9183 *) Complete rewrite of the error code script(s). It is all now handled
9184 by one script at the top level which handles error code gathering,
9185 header rewriting and C source file generation. It should be much better
9186 than the old method: it now uses a modified version of Ulf's parser to
9187 read the ANSI prototypes in all header files (thus the old K&R definitions
9188 aren't needed for error creation any more) and do a better job of
9189 translating function codes into names. The old 'ASN1 error code imbedded
9190 in a comment' is no longer necessary and it doesn't use .err files which
9191 have now been deleted. Also the error code call doesn't have to appear all
9192 on one line (which resulted in some large lines...).
9195 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9198 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9199 0 (which usually indicates a closed connection), but continue reading.
9202 *) Fix some race conditions.
9205 *) Add support for CRL distribution points extension. Add Certificate
9206 Policies and CRL distribution points documentation.
9209 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9212 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9213 8 of keying material. Merlin has also confirmed interop with this fix
9214 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9215 [Merlin Hughes <merlin@baltimore.ie>]
9217 *) Fix lots of warnings.
9218 [Richard Levitte <levitte@stacken.kth.se>]
9220 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9221 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9222 [Richard Levitte <levitte@stacken.kth.se>]
9224 *) Fix problems with sizeof(long) == 8.
9225 [Andy Polyakov <appro@fy.chalmers.se>]
9227 *) Change functions to ANSI C.
9230 *) Fix typos in error codes.
9231 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9233 *) Remove defunct assembler files from Configure.
9236 *) SPARC v8 assembler BIGNUM implementation.
9237 [Andy Polyakov <appro@fy.chalmers.se>]
9239 *) Support for Certificate Policies extension: both print and set.
9240 Various additions to support the r2i method this uses.
9243 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9244 return a const string when you are expecting an allocated buffer.
9247 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9248 types DirectoryString and DisplayText.
9251 *) Add code to allow r2i extensions to access the configuration database,
9252 add an LHASH database driver and add several ctx helper functions.
9255 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9256 fail when they extended the size of a BIGNUM.
9259 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9260 support typesafe stack.
9263 *) Fix typo in SSL_[gs]et_options().
9264 [Nils Frostberg <nils@medcom.se>]
9266 *) Delete various functions and files that belonged to the (now obsolete)
9267 old X509V3 handling code.
9270 *) New Configure option "rsaref".
9273 *) Don't auto-generate pem.h.
9276 *) Introduce type-safe ASN.1 SETs.
9279 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9280 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9282 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9283 that links with OpenSSL (well at least cause lots of warnings), but fear
9284 not: the conversion is trivial, and it eliminates loads of evil casts. A
9285 few STACKed things have been converted already. Feel free to convert more.
9286 In the fullness of time, I'll do away with the STACK type altogether.
9289 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9290 specified in <certfile> by updating the entry in the index.txt file.
9291 This way one no longer has to edit the index.txt file manually for
9292 revoking a certificate. The -revoke option does the gory details now.
9293 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9295 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9296 `-text' option at all and this way the `-noout -text' combination was
9297 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9298 [Ralf S. Engelschall]
9300 *) Make sure a corresponding plain text error message exists for the
9301 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9302 verify callback function determined that a certificate was revoked.
9303 [Ralf S. Engelschall]
9305 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9306 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9307 all available cipers including rc5, which was forgotten until now.
9308 In order to let the testing shell script know which algorithms
9309 are available, a new (up to now undocumented) command
9310 "openssl list-cipher-commands" is used.
9313 *) Bugfix: s_client occasionally would sleep in select() when
9314 it should have checked SSL_pending() first.
9317 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9318 the raw DSA values prior to ASN.1 encoding.
9321 *) Tweaks to Configure
9322 [Niels Poppe <niels@netbox.org>]
9324 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9328 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9331 *) New config option to avoid instructions that are illegal on the 80386.
9332 The default code is faster, but requires at least a 486.
9335 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9336 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9337 same as SSL2_VERSION anyway.
9340 *) New "-showcerts" option for s_client.
9343 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9344 application. Various cleanups and fixes.
9347 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9348 modify error routines to work internally. Add error codes and PBE init
9349 to library startup routines.
9352 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9353 packing functions to asn1 and evp. Changed function names and error
9354 codes along the way.
9357 *) PKCS12 integration: and so it begins... First of several patches to
9358 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9359 objects to objects.h
9362 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9363 and display support for Thawte strong extranet extension.
9366 *) Add LinuxPPC support.
9367 [Jeff Dubrule <igor@pobox.org>]
9369 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9370 bn_div_words in alpha.s.
9371 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9373 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9374 OAEP isn't supported when OpenSSL is built with RSAref.
9375 [Ulf Moeller <ulf@fitug.de>]
9377 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9378 so they no longer are missing under -DNOPROTO.
9379 [Soren S. Jorvang <soren@t.dk>]
9382 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9384 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9385 doesn't work when the session is reused. Coming soon!
9388 *) Fix a security hole, that allows sessions to be reused in the wrong
9389 context thus bypassing client cert protection! All software that uses
9390 client certs and session caches in multiple contexts NEEDS PATCHING to
9391 allow session reuse! A fuller solution is in the works.
9392 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9394 *) Some more source tree cleanups (removed obsolete files
9395 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9396 permission on "config" script to be executable) and a fix for the INSTALL
9398 [Ulf Moeller <ulf@fitug.de>]
9400 *) Remove some legacy and erroneous uses of malloc, free instead of
9402 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9404 *) Make rsa_oaep_test return non-zero on error.
9405 [Ulf Moeller <ulf@fitug.de>]
9407 *) Add support for native Solaris shared libraries. Configure
9408 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9409 if someone would make that last step automatic.
9410 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9412 *) ctx_size was not built with the right compiler during "make links". Fixed.
9415 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9416 except NULL ciphers". This means the default cipher list will no longer
9417 enable NULL ciphers. They need to be specifically enabled e.g. with
9418 the string "DEFAULT:eNULL".
9421 *) Fix to RSA private encryption routines: if p < q then it would
9422 occasionally produce an invalid result. This will only happen with
9423 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9426 *) Be less restrictive and allow also `perl util/perlpath.pl
9427 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9428 because this way one can also use an interpreter named `perl5' (which is
9429 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9430 installed as `perl').
9431 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9433 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9434 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9436 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9437 advapi32.lib to Win32 build and change the pem test comparision
9438 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9439 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9440 and crypto/des/ede_cbcm_enc.c.
9443 *) DES quad checksum was broken on big-endian architectures. Fixed.
9446 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9447 Win32 test batch file so it (might) work again. The Win32 test batch file
9448 is horrible: I feel ill....
9451 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9452 in e_os.h. Audit of header files to check ANSI and non ANSI
9453 sections: 10 functions were absent from non ANSI section and not exported
9454 from Windows DLLs. Fixed up libeay.num for new functions.
9457 *) Make `openssl version' output lines consistent.
9458 [Ralf S. Engelschall]
9460 *) Fix Win32 symbol export lists for BIO functions: Added
9461 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9462 to ms/libeay{16,32}.def.
9463 [Ralf S. Engelschall]
9465 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9466 fine under Unix and passes some trivial tests I've now added. But the
9467 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9468 added to make sure no one expects that this stuff really works in the
9469 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9470 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9472 [Ralf S. Engelschall]
9474 *) Fix the generation of two part addresses in perl.
9475 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9477 *) Add config entry for Linux on MIPS.
9478 [John Tobey <jtobey@channel1.com>]
9480 *) Make links whenever Configure is run, unless we are on Windoze.
9483 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9484 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9488 *) Add a useful kludge to allow package maintainers to specify compiler and
9489 other platforms details on the command line without having to patch the
9490 Configure script everytime: One now can use ``perl Configure
9491 <id>:<details>'', i.e. platform ids are allowed to have details appended
9492 to them (seperated by colons). This is treated as there would be a static
9493 pre-configured entry in Configure's %table under key <id> with value
9494 <details> and ``perl Configure <id>'' is called. So, when you want to
9495 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9496 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9497 now, which overrides the FreeBSD-elf entry on-the-fly.
9498 [Ralf S. Engelschall]
9500 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9503 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9504 on the `perl Configure ...' command line. This way one can compile
9505 OpenSSL libraries with Position Independent Code (PIC) which is needed
9506 for linking it into DSOs.
9507 [Ralf S. Engelschall]
9509 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9513 *) Cleaned up the LICENSE document: The official contact for any license
9514 questions now is the OpenSSL core team under openssl-core@openssl.org.
9515 And add a paragraph about the dual-license situation to make sure people
9516 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9517 to the OpenSSL toolkit.
9518 [Ralf S. Engelschall]
9520 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9521 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9522 Additonally cleaned up the `make links' target: Remove unnecessary
9523 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9524 to speed processing and no longer clutter the display with confusing
9525 stuff. Instead only the actually done links are displayed.
9526 [Ralf S. Engelschall]
9528 *) Permit null encryption ciphersuites, used for authentication only. It used
9529 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9530 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9534 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9535 signed attributes when verifying signatures (this would break them),
9536 the detached data encoding was wrong and public keys obtained using
9537 X509_get_pubkey() weren't freed.
9540 *) Add text documentation for the BUFFER functions. Also added a work around
9541 to a Win95 console bug. This was triggered by the password read stuff: the
9542 last character typed gets carried over to the next fread(). If you were
9543 generating a new cert request using 'req' for example then the last
9544 character of the passphrase would be CR which would then enter the first
9548 *) Added the new `Includes OpenSSL Cryptography Software' button as
9549 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9550 button and can be used by applications based on OpenSSL to show the
9551 relationship to the OpenSSL project.
9552 [Ralf S. Engelschall]
9554 *) Remove confusing variables in function signatures in files
9555 ssl/ssl_lib.c and ssl/ssl.h.
9556 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9558 *) Don't install bss_file.c under PREFIX/include/
9559 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9561 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9562 functions that return function pointers and has support for NT specific
9563 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9564 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9565 unsigned to signed types: this was killing the Win32 compile.
9568 *) Add new certificate file to stack functions,
9569 SSL_add_dir_cert_subjects_to_stack() and
9570 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9571 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9572 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9573 This means that Apache-SSL and similar packages don't have to mess around
9574 to add as many CAs as they want to the preferred list.
9577 *) Experiment with doxygen documentation. Currently only partially applied to
9579 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9580 openssl.doxy as the configuration file.
9583 *) Get rid of remaining C++-style comments which strict C compilers hate.
9584 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9586 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9587 compiled in by default: it has problems with large keys.
9590 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9591 DH private keys and/or callback functions which directly correspond to
9592 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9593 is needed for applications which have to configure certificates on a
9594 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9596 For the RSA certificate situation is makes no difference, but
9597 for the DSA certificate situation this fixes the "no shared cipher"
9598 problem where the OpenSSL cipher selection procedure failed because the
9599 temporary keys were not overtaken from the context and the API provided
9600 no way to reconfigure them.
9601 The new functions now let applications reconfigure the stuff and they
9602 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9603 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9604 non-public-API function ssl_cert_instantiate() is used as a helper
9605 function and also to reduce code redundancy inside ssl_rsa.c.
9606 [Ralf S. Engelschall]
9608 *) Move s_server -dcert and -dkey options out of the undocumented feature
9609 area because they are useful for the DSA situation and should be
9610 recognized by the users.
9611 [Ralf S. Engelschall]
9613 *) Fix the cipher decision scheme for export ciphers: the export bits are
9614 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9615 SSL_EXP_MASK. So, the original variable has to be used instead of the
9616 already masked variable.
9617 [Richard Levitte <levitte@stacken.kth.se>]
9619 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9620 [Richard Levitte <levitte@stacken.kth.se>]
9622 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9623 from `int' to `unsigned int' because it's a length and initialized by
9624 EVP_DigestFinal() which expects an `unsigned int *'.
9625 [Richard Levitte <levitte@stacken.kth.se>]
9627 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9628 script. Instead use the usual Shell->Perl transition trick.
9629 [Ralf S. Engelschall]
9631 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9632 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9633 -noout -modulus' as it's already the case for `openssl rsa -noout
9634 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9635 currently the public key is printed (a decision which was already done by
9636 `openssl dsa -modulus' in the past) which serves a similar purpose.
9637 Additionally the NO_RSA no longer completely removes the whole -modulus
9638 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9640 [Ralf S. Engelschall]
9642 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9643 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9644 [Arne Ansper <arne@ats.cyber.ee>]
9646 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9647 to be added. Now both 'req' and 'ca' can use new objects defined in the
9651 *) Add cool BIO that does syslog (or event log on NT).
9652 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9654 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9655 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9656 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9657 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9660 *) Add preliminary config info for new extension code.
9663 *) Make RSA_NO_PADDING really use no padding.
9664 [Ulf Moeller <ulf@fitug.de>]
9666 *) Generate errors when private/public key check is done.
9669 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9670 for some CRL extensions and new objects added.
9673 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9674 key usage extension and fuller support for authority key id.
9677 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9678 padding method for RSA, which is recommended for new applications in PKCS
9679 #1 v2.0 (RFC 2437, October 1998).
9680 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9681 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9682 against Bleichbacher's attack on RSA.
9683 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9686 *) Updates to the new SSL compression code
9687 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9689 *) Fix so that the version number in the master secret, when passed
9690 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9691 (because the server will not accept higher), that the version number
9692 is 0x03,0x01, not 0x03,0x00
9693 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9695 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9696 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9697 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9700 *) Support for RAW extensions where an arbitrary extension can be
9701 created by including its DER encoding. See apps/openssl.cnf for
9705 *) Make sure latest Perl versions don't interpret some generated C array
9706 code as Perl array code in the crypto/err/err_genc.pl script.
9707 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9709 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9710 not many people have the assembler. Various Win32 compilation fixes and
9711 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9715 *) Modify configure script 'Configure' to automatically create crypto/date.h
9716 file under Win32 and also build pem.h from pem.org. New script
9717 util/mkfiles.pl to create the MINFO file on environments that can't do a
9718 'make files': perl util/mkfiles.pl >MINFO should work.
9721 *) Major rework of DES function declarations, in the pursuit of correctness
9722 and purity. As a result, many evil casts evaporated, and some weirdness,
9723 too. You may find this causes warnings in your code. Zapping your evil
9724 casts will probably fix them. Mostly.
9727 *) Fix for a typo in asn1.h. Bug fix to object creation script
9728 obj_dat.pl. It considered a zero in an object definition to mean
9729 "end of object": none of the objects in objects.h have any zeros
9730 so it wasn't spotted.
9731 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9733 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9734 Masking (CBCM). In the absence of test vectors, the best I have been able
9735 to do is check that the decrypt undoes the encrypt, so far. Send me test
9736 vectors if you have them.
9739 *) Correct calculation of key length for export ciphers (too much space was
9740 allocated for null ciphers). This has not been tested!
9743 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9744 message is now correct (it understands "crypto" and "ssl" on its
9745 command line). There is also now an "update" option. This will update
9746 the util/ssleay.num and util/libeay.num files with any new functions.
9748 perl util/mkdef.pl crypto ssl update
9749 it will update them.
9752 *) Overhauled the Perl interface (perl/*):
9753 - ported BN stuff to OpenSSL's different BN library
9754 - made the perl/ source tree CVS-aware
9755 - renamed the package from SSLeay to OpenSSL (the files still contain
9756 their history because I've copied them in the repository)
9757 - removed obsolete files (the test scripts will be replaced
9758 by better Test::Harness variants in the future)
9759 [Ralf S. Engelschall]
9761 *) First cut for a very conservative source tree cleanup:
9762 1. merge various obsolete readme texts into doc/ssleay.txt
9763 where we collect the old documents and readme texts.
9764 2. remove the first part of files where I'm already sure that we no
9765 longer need them because of three reasons: either they are just temporary
9766 files which were left by Eric or they are preserved original files where
9767 I've verified that the diff is also available in the CVS via "cvs diff
9768 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9769 the crypto/md/ stuff).
9770 [Ralf S. Engelschall]
9772 *) More extension code. Incomplete support for subject and issuer alt
9773 name, issuer and authority key id. Change the i2v function parameters
9774 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9775 what that's for :-) Fix to ASN1 macro which messed up
9776 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9779 *) Preliminary support for ENUMERATED type. This is largely copied from the
9783 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9784 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9786 *) Make sure `make rehash' target really finds the `openssl' program.
9787 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9789 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9790 like to hear about it if this slows down other processors.
9793 *) Add CygWin32 platform information to Configure script.
9794 [Alan Batie <batie@aahz.jf.intel.com>]
9796 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9797 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9799 *) New program nseq to manipulate netscape certificate sequences
9802 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9806 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9807 but the BN code had some problems that would cause failures when
9808 doing certificate verification and some other functions.
9809 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9811 *) Add ASN1 and PEM code to support netscape certificate sequences.
9814 *) Add ASN1 and PEM code to support netscape certificate sequences.
9817 *) Add several PKIX and private extended key usage OIDs.
9820 *) Modify the 'ca' program to handle the new extension code. Modify
9821 openssl.cnf for new extension format, add comments.
9824 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9825 and add a sample to openssl.cnf so req -x509 now adds appropriate
9829 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9830 error code, add initial support to X509_print() and x509 application.
9833 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9834 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9835 stuff is currently isolated and isn't even compiled yet.
9838 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9839 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9840 Removed the versions check from X509 routines when loading extensions:
9841 this allows certain broken certificates that don't set the version
9842 properly to be processed.
9845 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9846 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9847 can still be regenerated with "make depend".
9850 *) Spelling mistake in C version of CAST-128.
9851 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9853 *) Changes to the error generation code. The perl script err-code.pl
9854 now reads in the old error codes and retains the old numbers, only
9855 adding new ones if necessary. It also only changes the .err files if new
9856 codes are added. The makefiles have been modified to only insert errors
9857 when needed (to avoid needlessly modifying header files). This is done
9858 by only inserting errors if the .err file is newer than the auto generated
9859 C file. To rebuild all the error codes from scratch (the old behaviour)
9860 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9861 or delete all the .err files.
9864 *) CAST-128 was incorrectly implemented for short keys. The C version has
9865 been fixed, but is untested. The assembler versions are also fixed, but
9866 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9867 to regenerate it if needed.
9868 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9869 Hagino <itojun@kame.net>]
9871 *) File was opened incorrectly in randfile.c.
9872 [Ulf Möller <ulf@fitug.de>]
9874 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9875 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9876 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9877 al: it's just almost always a UTCTime. Note this patch adds new error
9878 codes so do a "make errors" if there are problems.
9881 *) Correct Linux 1 recognition in config.
9882 [Ulf Möller <ulf@fitug.de>]
9884 *) Remove pointless MD5 hash when using DSA keys in ca.
9885 [Anonymous <nobody@replay.com>]
9887 *) Generate an error if given an empty string as a cert directory. Also
9888 generate an error if handed NULL (previously returned 0 to indicate an
9889 error, but didn't set one).
9890 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9892 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9895 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9896 parameters. This was causing a warning which killed off the Win32 compile.
9899 *) Remove C++ style comments from crypto/bn/bn_local.h.
9900 [Neil Costigan <neil.costigan@celocom.com>]
9902 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9903 based on a text string, looking up short and long names and finally
9904 "dot" format. The "dot" format stuff didn't work. Added new function
9905 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9906 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9907 OID is not part of the table.
9910 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9911 X509_LOOKUP_by_alias().
9914 *) Sort openssl functions by name.
9917 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9918 encryption from sample DSA keys (in case anyone is interested the password
9922 *) Make _all_ *_free functions accept a NULL pointer.
9923 [Frans Heymans <fheymans@isaserver.be>]
9925 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9927 [Anonymous <nobody@replay.com>]
9929 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9930 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9932 *) Don't blow it for numeric -newkey arguments to apps/req.
9933 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9935 *) Temp key "for export" tests were wrong in s3_srvr.c.
9936 [Anonymous <nobody@replay.com>]
9938 *) Add prototype for temp key callback functions
9939 SSL_CTX_set_tmp_{rsa,dh}_callback().
9942 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9943 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9946 *) X509_name_add_entry() freed the wrong thing after an error.
9947 [Arne Ansper <arne@ats.cyber.ee>]
9949 *) rsa_eay.c would attempt to free a NULL context.
9950 [Arne Ansper <arne@ats.cyber.ee>]
9952 *) BIO_s_socket() had a broken should_retry() on Windoze.
9953 [Arne Ansper <arne@ats.cyber.ee>]
9955 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9956 [Arne Ansper <arne@ats.cyber.ee>]
9958 *) Make sure the already existing X509_STORE->depth variable is initialized
9959 in X509_STORE_new(), but document the fact that this variable is still
9960 unused in the certificate verification process.
9961 [Ralf S. Engelschall]
9963 *) Fix the various library and apps files to free up pkeys obtained from
9964 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9967 *) Fix reference counting in X509_PUBKEY_get(). This makes
9968 demos/maurice/example2.c work, amongst others, probably.
9969 [Steve Henson and Ben Laurie]
9971 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9972 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9973 are no longer created. This way we have a single and consistent command
9974 line interface `openssl <command>', similar to `cvs <command>'.
9975 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9977 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9978 BIT STRING wrapper always have zero unused bits.
9981 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9984 *) Make the top-level INSTALL documentation easier to understand.
9987 *) Makefiles updated to exit if an error occurs in a sub-directory
9988 make (including if user presses ^C) [Paul Sutton]
9990 *) Make Montgomery context stuff explicit in RSA data structure.
9993 *) Fix build order of pem and err to allow for generated pem.h.
9996 *) Fix renumbering bug in X509_NAME_delete_entry().
9999 *) Enhanced the err-ins.pl script so it makes the error library number
10000 global and can add a library name. This is needed for external ASN1 and
10001 other error libraries.
10004 *) Fixed sk_insert which never worked properly.
10007 *) Fix ASN1 macros so they can handle indefinite length construted
10008 EXPLICIT tags. Some non standard certificates use these: they can now
10012 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10013 into a single doc/ssleay.txt bundle. This way the information is still
10014 preserved but no longer messes up this directory. Now it's new room for
10015 the new set of documenation files.
10016 [Ralf S. Engelschall]
10018 *) SETs were incorrectly DER encoded. This was a major pain, because they
10019 shared code with SEQUENCEs, which aren't coded the same. This means that
10020 almost everything to do with SETs or SEQUENCEs has either changed name or
10021 number of arguments.
10022 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10024 *) Fix test data to work with the above.
10027 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10028 was already fixed by Eric for 0.9.1 it seems.
10029 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10031 *) Autodetect FreeBSD3.
10034 *) Fix various bugs in Configure. This affects the following platforms:
10038 unixware-2.0-pentium
10042 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10043 before they are needed.
10046 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10050 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10052 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10053 changed SSLeay to OpenSSL in version strings.
10054 [Ralf S. Engelschall]
10056 *) Some fixups to the top-level documents.
10059 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10060 because the symlink to include/ was missing.
10061 [Ralf S. Engelschall]
10063 *) Incorporated the popular no-RSA/DSA-only patches
10064 which allow to compile a RSA-free SSLeay.
10065 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10067 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10068 when "ssleay" is still not found.
10069 [Ralf S. Engelschall]
10071 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10072 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10074 *) Updated the README file.
10075 [Ralf S. Engelschall]
10077 *) Added various .cvsignore files in the CVS repository subdirs
10078 to make a "cvs update" really silent.
10079 [Ralf S. Engelschall]
10081 *) Recompiled the error-definition header files and added
10082 missing symbols to the Win32 linker tables.
10083 [Ralf S. Engelschall]
10085 *) Cleaned up the top-level documents;
10086 o new files: CHANGES and LICENSE
10087 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10088 o merged COPYRIGHT into LICENSE
10089 o removed obsolete TODO file
10090 o renamed MICROSOFT to INSTALL.W32
10091 [Ralf S. Engelschall]
10093 *) Removed dummy files from the 0.9.1b source tree:
10094 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10095 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10096 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10097 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10098 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10099 [Ralf S. Engelschall]
10101 *) Added various platform portability fixes.
10104 *) The Genesis of the OpenSSL rpject:
10105 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10106 Young and Tim J. Hudson created while they were working for C2Net until
10108 [The OpenSSL Project]
10111 Changes between 0.9.0b and 0.9.1b [not released]
10113 *) Updated a few CA certificates under certs/
10116 *) Changed some BIGNUM api stuff.
10119 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10120 DGUX x86, Linux Alpha, etc.
10123 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10124 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10128 *) Add -strparse option to asn1pars program which parses nested
10130 [Dr Stephen Henson <shenson@bigfoot.com>]
10132 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10135 *) DSA fix for "ca" program.
10138 *) Added "-genkey" option to "dsaparam" program.
10141 *) Added RIPE MD160 (rmd160) message digest.
10144 *) Added -a (all) option to "ssleay version" command.
10147 *) Added PLATFORM define which is the id given to Configure.
10150 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10153 *) Extended the ASN.1 parser routines.
10156 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10159 *) Added a BN_CTX to the BN library.
10162 *) Fixed the weak key values in DES library
10165 *) Changed API in EVP library for cipher aliases.
10168 *) Added support for RC2/64bit cipher.
10171 *) Converted the lhash library to the crypto/mem.c functions.
10174 *) Added more recognized ASN.1 object ids.
10177 *) Added more RSA padding checks for SSL/TLS.
10180 *) Added BIO proxy/filter functionality.
10183 *) Added extra_certs to SSL_CTX which can be used
10184 send extra CA certificates to the client in the CA cert chain sending
10185 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10188 *) Now Fortezza is denied in the authentication phase because
10189 this is key exchange mechanism is not supported by SSLeay at all.
10192 *) Additional PKCS1 checks.
10195 *) Support the string "TLSv1" for all TLS v1 ciphers.
10198 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10199 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10202 *) Fixed a few memory leaks.
10205 *) Fixed various code and comment typos.
10208 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10209 bytes sent in the client random.
10210 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob