5 Changes between 1.0.1e and 1.0.2 [xx XXX xxxx]
7 *) Add EVP support for key wrapping algorithms, to avoid problems with
8 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
9 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
10 algorithms and include tests cases.
13 *) Add functions to allocate and set the fields of an ECDSA_METHOD
15 [Douglas E. Engert, Steve Henson]
17 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
18 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
19 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
20 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
21 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
22 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
23 [Rob Stradling, Adam Langley]
25 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the
26 difference in days and seconds between two tm or ASN1_TIME structures.
29 *) Add -rev test option to s_server to just reverse order of characters
30 received by client and send back to server. Also prints an abbreviated
31 summary of the connection parameters.
34 *) New option -brief for s_client and s_server to print out a brief summary
35 of connection parameters.
38 *) Add callbacks for arbitrary TLS extensions.
39 [Trevor Perrin <trevp@trevp.net> and Ben Laurie]
41 *) New option -crl_download in several openssl utilities to download CRLs
42 from CRLDP extension in certificates.
45 *) New options -CRL and -CRLform for s_client and s_server for CRLs.
48 *) New function X509_CRL_diff to generate a delta CRL from the difference
49 of two full CRLs. Add support to "crl" utility.
52 *) New functions to set lookup_crls function and to retrieve
53 X509_STORE from X509_STORE_CTX.
56 *) Print out deprecated issuer and subject unique ID fields in
60 *) Extend OCSP I/O functions so they can be used for simple general purpose
61 HTTP as well as OCSP. New wrapper function which can be used to download
62 CRLs using the OCSP API.
65 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs.
68 *) SSL_CONF* functions. These provide a common framework for application
69 configuration using configuration files or command lines.
72 *) SSL/TLS tracing code. This parses out SSL/TLS records using the
73 message callback and prints the results. Needs compile time option
74 "enable-ssl-trace". New options to s_client and s_server to enable
78 *) New ctrl and macro to retrieve supported points extensions.
79 Print out extension in s_server and s_client.
82 *) New functions to retrieve certificate signature and signature
86 *) Add functions to retrieve and manipulate the raw cipherlist sent by a
90 *) New Suite B modes for TLS code. These use and enforce the requirements
91 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
92 only use Suite B curves. The Suite B modes can be set by using the
93 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
96 *) New chain verification flags for Suite B levels of security. Check
97 algorithms are acceptable when flags are set in X509_verify_cert.
100 *) Make tls1_check_chain return a set of flags indicating checks passed
101 by a certificate chain. Add additional tests to handle client
102 certificates: checks for matching certificate type and issuer name
106 *) If an attempt is made to use a signature algorithm not in the peer
107 preference list abort the handshake. If client has no suitable
108 signature algorithms in response to a certificate request do not
112 *) If server EC tmp key is not in client preference list abort handshake.
115 *) Add support for certificate stores in CERT structure. This makes it
116 possible to have different stores per SSL structure or one store in
117 the parent SSL_CTX. Include distint stores for certificate chain
118 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
119 to build and store a certificate chain in CERT structure: returing
120 an error if the chain cannot be built: this will allow applications
121 to test if a chain is correctly configured.
123 Note: if the CERT based stores are not set then the parent SSL_CTX
124 store is used to retain compatibility with existing behaviour.
128 *) New function ssl_set_client_disabled to set a ciphersuite disabled
129 mask based on the current session, check mask when sending client
130 hello and checking the requested ciphersuite.
133 *) New ctrls to retrieve and set certificate types in a certificate
134 request message. Print out received values in s_client. If certificate
135 types is not set with custom values set sensible values based on
136 supported signature algorithms.
139 *) Support for distinct client and server supported signature algorithms.
142 *) Add certificate callback. If set this is called whenever a certificate
143 is required by client or server. An application can decide which
144 certificate chain to present based on arbitrary criteria: for example
145 supported signature algorithms. Add very simple example to s_server.
146 This fixes many of the problems and restrictions of the existing client
147 certificate callback: for example you can now clear an existing
148 certificate and specify the whole chain.
151 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
152 the certificate can be used for (if anything). Set valid_flags field
153 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
154 to have similar checks in it.
156 Add new "cert_flags" field to CERT structure and include a "strict mode".
157 This enforces some TLS certificate requirements (such as only permitting
158 certificate signature algorithms contained in the supported algorithms
159 extension) which some implementations ignore: this option should be used
160 with caution as it could cause interoperability issues.
163 *) Update and tidy signature algorithm extension processing. Work out
164 shared signature algorithms based on preferences and peer algorithms
165 and print them out in s_client and s_server. Abort handshake if no
166 shared signature algorithms.
169 *) Add new functions to allow customised supported signature algorithms
170 for SSL and SSL_CTX structures. Add options to s_client and s_server
174 *) New function SSL_certs_clear() to delete all references to certificates
175 from an SSL structure. Before this once a certificate had been added
176 it couldn't be removed.
179 *) Integrate hostname, email address and IP address checking with certificate
180 verification. New verify options supporting checking in opensl utility.
183 *) Fixes and wildcard matching support to hostname and email checking
184 functions. Add manual page.
185 [Florian Weimer (Red Hat Product Security Team)]
187 *) New functions to check a hostname email or IP address against a
188 certificate. Add options x509 utility to print results of checks against
192 *) Fix OCSP checking.
193 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
195 *) Initial experimental support for explicitly trusted non-root CAs.
196 OpenSSL still tries to build a complete chain to a root but if an
197 intermediate CA has a trust setting included that is used. The first
198 setting is used: whether to trust (e.g., -addtrust option to the x509
202 *) Add -trusted_first option which attempts to find certificates in the
203 trusted store even if an untrusted chain is also supplied.
206 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
207 platform support for Linux and Android.
210 *) Support for linux-x32, ILP32 environment in x86_64 framework.
213 *) RFC 5878 (TLS Authorization Extensions) support.
214 [Emilia Kasper, Adam Langley, Ben Laurie (Google)]
216 *) Experimental multi-implementation support for FIPS capable OpenSSL.
217 When in FIPS mode the approved implementations are used as normal,
218 when not in FIPS mode the internal unapproved versions are used instead.
219 This means that the FIPS capable OpenSSL isn't forced to use the
220 (often lower perfomance) FIPS implementations outside FIPS mode.
223 *) Transparently support X9.42 DH parameters when calling
224 PEM_read_bio_DHparameters. This means existing applications can handle
225 the new parameter format automatically.
228 *) Initial experimental support for X9.42 DH parameter format: mainly
229 to support use of 'q' parameter for RFC5114 parameters.
232 *) Add DH parameters from RFC5114 including test data to dhtest.
235 *) Support for automatic EC temporary key parameter selection. If enabled
236 the most preferred EC parameters are automatically used instead of
237 hardcoded fixed parameters. Now a server just has to call:
238 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
239 support ECDH and use the most appropriate parameters.
242 *) Enhance and tidy EC curve and point format TLS extension code. Use
243 static structures instead of allocation if default values are used.
244 New ctrls to set curves we wish to support and to retrieve shared curves.
245 Print out shared curves in s_server. New options to s_server and s_client
246 to set list of supported curves.
249 *) New ctrls to retrieve supported signature algorithms and
250 supported curve values as an array of NIDs. Extend openssl utility
251 to print out received values.
254 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
255 between NIDs and the more common NIST names such as "P-256". Enhance
256 ecparam utility and ECC method to recognise the NIST names for curves.
259 *) Enhance SSL/TLS certificate chain handling to support different
260 chains for each certificate instead of one chain in the parent SSL_CTX.
263 *) Support for fixed DH ciphersuite client authentication: where both
264 server and client use DH certificates with common parameters.
267 *) Support for fixed DH ciphersuites: those requiring DH server
271 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
273 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
274 supporting platforms or when small records were transferred.
275 [Andy Polyakov, Steve Henson]
277 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
279 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
281 This addresses the flaw in CBC record processing discovered by
282 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
283 at: http://www.isg.rhul.ac.uk/tls/
285 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
286 Security Group at Royal Holloway, University of London
287 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
288 Emilia Käsper for the initial patch.
290 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
292 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
293 ciphersuites which can be exploited in a denial of service attack.
294 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
295 and detecting this bug and to Wolfgang Ettlinger
296 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
300 *) Return an error when checking OCSP signatures when key is NULL.
301 This fixes a DoS attack. (CVE-2013-0166)
304 *) Make openssl verify return errors.
305 [Chris Palmer <palmer@google.com> and Ben Laurie]
307 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
308 the right response is stapled. Also change SSL_get_certificate()
309 so it returns the certificate actually sent.
310 See http://rt.openssl.org/Ticket/Display.html?id=2836.
311 [Rob Stradling <rob.stradling@comodo.com>]
313 *) Fix possible deadlock when decoding public keys.
316 *) Don't use TLS 1.0 record version number in initial client hello
320 Changes between 1.0.1b and 1.0.1c [10 May 2012]
322 *) Sanity check record length before skipping explicit IV in TLS
323 1.2, 1.1 and DTLS to fix DoS attack.
325 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
326 fuzzing as a service testing platform.
330 *) Initialise tkeylen properly when encrypting CMS messages.
331 Thanks to Solar Designer of Openwall for reporting this issue.
334 *) In FIPS mode don't try to use composite ciphers as they are not
338 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
340 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
341 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
342 mean any application compiled against OpenSSL 1.0.0 headers setting
343 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
344 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
345 0x10000000L Any application which was previously compiled against
346 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
347 will need to be recompiled as a result. Letting be results in
348 inability to disable specifically TLS 1.1 and in client context,
349 in unlike event, limit maximum offered version to TLS 1.0 [see below].
352 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
353 disable just protocol X, but all protocols above X *if* there are
354 protocols *below* X still enabled. In more practical terms it means
355 that if application wants to disable TLS1.0 in favor of TLS1.1 and
356 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
357 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
361 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
363 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
364 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
365 in CRYPTO_realloc_clean.
367 Thanks to Tavis Ormandy, Google Security Team, for discovering this
368 issue and to Adam Langley <agl@chromium.org> for fixing it.
370 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
372 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
375 *) Workarounds for some broken servers that "hang" if a client hello
376 record length exceeds 255 bytes.
378 1. Do not use record version number > TLS 1.0 in initial client
379 hello: some (but not all) hanging servers will now work.
380 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
381 the number of ciphers sent in the client hello. This should be
382 set to an even number, such as 50, for example by passing:
383 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
384 Most broken servers should now work.
385 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
386 TLS 1.2 client support entirely.
389 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
392 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
394 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
395 STRING form instead of a DigestInfo.
398 *) The format used for MDC2 RSA signatures is inconsistent between EVP
399 and the RSA_sign/RSA_verify functions. This was made more apparent when
400 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
401 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
402 the correct format in RSA_verify so both forms transparently work.
405 *) Some servers which support TLS 1.0 can choke if we initially indicate
406 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
407 encrypted premaster secret. As a workaround use the maximum pemitted
408 client version in client hello, this should keep such servers happy
409 and still work with previous versions of OpenSSL.
412 *) Add support for TLS/DTLS heartbeats.
413 [Robin Seggelmann <seggelmann@fh-muenster.de>]
415 *) Add support for SCTP.
416 [Robin Seggelmann <seggelmann@fh-muenster.de>]
418 *) Improved PRNG seeding for VOS.
419 [Paul Green <Paul.Green@stratus.com>]
421 *) Extensive assembler packs updates, most notably:
423 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
424 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
425 - x86_64: bit-sliced AES implementation;
426 - ARM: NEON support, contemporary platforms optimizations;
427 - s390x: z196 support;
428 - *: GHASH and GF(2^m) multiplication implementations;
432 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
433 (removal of unnecessary code)
434 [Peter Sylvester <peter.sylvester@edelweb.fr>]
436 *) Add TLS key material exporter from RFC 5705.
439 *) Add DTLS-SRTP negotiation from RFC 5764.
442 *) Add Next Protocol Negotiation,
443 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
444 disabled with a no-npn flag to config or Configure. Code donated
446 [Adam Langley <agl@google.com> and Ben Laurie]
448 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
449 NIST-P256, NIST-P521, with constant-time single point multiplication on
450 typical inputs. Compiler support for the nonstandard type __uint128_t is
451 required to use this (present in gcc 4.4 and later, for 64-bit builds).
452 Code made available under Apache License version 2.0.
454 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
455 line to include this in your build of OpenSSL, and run "make depend" (or
456 "make update"). This enables the following EC_METHODs:
458 EC_GFp_nistp224_method()
459 EC_GFp_nistp256_method()
460 EC_GFp_nistp521_method()
462 EC_GROUP_new_by_curve_name() will automatically use these (while
463 EC_GROUP_new_curve_GFp() currently prefers the more flexible
465 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
467 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
468 all platforms. Move ssize_t definition from e_os.h to the public
469 header file e_os2.h as it now appears in public header file cms.h
472 *) New -sigopt option to the ca, req and x509 utilities. Additional
473 signature parameters can be passed using this option and in
477 *) Add RSA PSS signing function. This will generate and set the
478 appropriate AlgorithmIdentifiers for PSS based on those in the
479 corresponding EVP_MD_CTX structure. No application support yet.
482 *) Support for companion algorithm specific ASN1 signing routines.
483 New function ASN1_item_sign_ctx() signs a pre-initialised
484 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
485 the appropriate parameters.
488 *) Add new algorithm specific ASN1 verification initialisation function
489 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
490 handling will be the same no matter what EVP_PKEY_METHOD is used.
491 Add a PSS handler to support verification of PSS signatures: checked
492 against a number of sample certificates.
495 *) Add signature printing for PSS. Add PSS OIDs.
496 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
498 *) Add algorithm specific signature printing. An individual ASN1 method
499 can now print out signatures instead of the standard hex dump.
501 More complex signatures (e.g. PSS) can print out more meaningful
502 information. Include DSA version that prints out the signature
506 *) Password based recipient info support for CMS library: implementing
510 *) Split password based encryption into PBES2 and PBKDF2 functions. This
511 neatly separates the code into cipher and PBE sections and is required
512 for some algorithms that split PBES2 into separate pieces (such as
516 *) Session-handling fixes:
517 - Fix handling of connections that are resuming with a session ID,
518 but also support Session Tickets.
519 - Fix a bug that suppressed issuing of a new ticket if the client
520 presented a ticket with an expired session.
521 - Try to set the ticket lifetime hint to something reasonable.
522 - Make tickets shorter by excluding irrelevant information.
523 - On the client side, don't ignore renewed tickets.
524 [Adam Langley, Bodo Moeller (Google)]
526 *) Fix PSK session representation.
529 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
531 This work was sponsored by Intel.
534 *) Add GCM support to TLS library. Some custom code is needed to split
535 the IV between the fixed (from PRF) and explicit (from TLS record)
536 portions. This adds all GCM ciphersuites supported by RFC5288 and
537 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
538 add a special AESGCM string for GCM only.
541 *) Expand range of ctrls for AES GCM. Permit setting invocation
542 field on decrypt and retrieval of invocation field only on encrypt.
545 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
546 As required by RFC5289 these ciphersuites cannot be used if for
547 versions of TLS earlier than 1.2.
550 *) For FIPS capable OpenSSL interpret a NULL default public key method
551 as unset and return the appopriate default but do *not* set the default.
552 This means we can return the appopriate method in applications that
553 swicth between FIPS and non-FIPS modes.
556 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
557 ENGINE is used then we cannot handle that in the FIPS module so we
558 keep original code iff non-FIPS operations are allowed.
561 *) Add -attime option to openssl utilities.
562 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
564 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
567 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
568 FIPS EC methods unconditionally for now.
571 *) New build option no-ec2m to disable characteristic 2 code.
574 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
575 all cases can be covered as some introduce binary incompatibilities.
578 *) Redirect RSA operations to FIPS module including keygen,
579 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
582 *) Add similar low level API blocking to ciphers.
585 *) Low level digest APIs are not approved in FIPS mode: any attempt
586 to use these will cause a fatal error. Applications that *really* want
587 to use them can use the private_* version instead.
590 *) Redirect cipher operations to FIPS module for FIPS builds.
593 *) Redirect digest operations to FIPS module for FIPS builds.
596 *) Update build system to add "fips" flag which will link in fipscanister.o
597 for static and shared library builds embedding a signature if needed.
600 *) Output TLS supported curves in preference order instead of numerical
601 order. This is currently hardcoded for the highest order curves first.
602 This should be configurable so applications can judge speed vs strength.
605 *) Add TLS v1.2 server support for client authentication.
608 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
612 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
613 FIPS modules versions.
616 *) Add TLS v1.2 client side support for client authentication. Keep cache
617 of handshake records longer as we don't know the hash algorithm to use
618 until after the certificate request message is received.
621 *) Initial TLS v1.2 client support. Add a default signature algorithms
622 extension including all the algorithms we support. Parse new signature
623 format in client key exchange. Relax some ECC signing restrictions for
624 TLS v1.2 as indicated in RFC5246.
627 *) Add server support for TLS v1.2 signature algorithms extension. Switch
628 to new signature format when needed using client digest preference.
629 All server ciphersuites should now work correctly in TLS v1.2. No client
630 support yet and no support for client certificates.
633 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
634 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
635 ciphersuites. At present only RSA key exchange ciphersuites work with
636 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
637 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
638 and version checking.
641 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
642 with this defined it will not be affected by any changes to ssl internal
643 structures. Add several utility functions to allow openssl application
644 to work with OPENSSL_NO_SSL_INTERN defined.
648 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
650 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
653 *) Permit abbreviated handshakes when renegotiating using the function
654 SSL_renegotiate_abbreviated().
655 [Robin Seggelmann <seggelmann@fh-muenster.de>]
657 *) Add call to ENGINE_register_all_complete() to
658 ENGINE_load_builtin_engines(), so some implementations get used
659 automatically instead of needing explicit application support.
662 *) Add support for TLS key exporter as described in RFC5705.
663 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
665 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
666 a few changes are required:
668 Add SSL_OP_NO_TLSv1_1 flag.
670 Update version checking logic to handle version 1.1.
671 Add explicit IV handling (ported from DTLS code).
672 Add command line options to s_client/s_server.
675 Changes between 1.0.0j and 1.0.0k [5 Feb 2013]
677 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
679 This addresses the flaw in CBC record processing discovered by
680 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
681 at: http://www.isg.rhul.ac.uk/tls/
683 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
684 Security Group at Royal Holloway, University of London
685 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
686 Emilia Käsper for the initial patch.
688 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
690 *) Return an error when checking OCSP signatures when key is NULL.
691 This fixes a DoS attack. (CVE-2013-0166)
694 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
695 the right response is stapled. Also change SSL_get_certificate()
696 so it returns the certificate actually sent.
697 See http://rt.openssl.org/Ticket/Display.html?id=2836.
699 [Rob Stradling <rob.stradling@comodo.com>]
701 *) Fix possible deadlock when decoding public keys.
704 Changes between 1.0.0i and 1.0.0j [10 May 2012]
706 [NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after
709 *) Sanity check record length before skipping explicit IV in DTLS
712 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
713 fuzzing as a service testing platform.
717 *) Initialise tkeylen properly when encrypting CMS messages.
718 Thanks to Solar Designer of Openwall for reporting this issue.
721 Changes between 1.0.0h and 1.0.0i [19 Apr 2012]
723 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
724 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
725 in CRYPTO_realloc_clean.
727 Thanks to Tavis Ormandy, Google Security Team, for discovering this
728 issue and to Adam Langley <agl@chromium.org> for fixing it.
730 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
732 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
734 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
735 in CMS and PKCS7 code. When RSA decryption fails use a random key for
736 content decryption and always return the same error. Note: this attack
737 needs on average 2^20 messages so it only affects automated senders. The
738 old behaviour can be reenabled in the CMS code by setting the
739 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
740 an MMA defence is not necessary.
741 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
742 this issue. (CVE-2012-0884)
745 *) Fix CVE-2011-4619: make sure we really are receiving a
746 client hello before rejecting multiple SGC restarts. Thanks to
747 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
750 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
752 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
753 Thanks to Antonio Martin, Enterprise Secure Access Research and
754 Development, Cisco Systems, Inc. for discovering this bug and
755 preparing a fix. (CVE-2012-0050)
758 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
760 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
761 of the Vaudenay padding oracle attack on CBC mode encryption
762 which enables an efficient plaintext recovery attack against
763 the OpenSSL implementation of DTLS. Their attack exploits timing
764 differences arising during decryption processing. A research
765 paper describing this attack can be found at:
766 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
767 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
768 Security Group at Royal Holloway, University of London
769 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
770 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
771 for preparing the fix. (CVE-2011-4108)
772 [Robin Seggelmann, Michael Tuexen]
774 *) Clear bytes used for block padding of SSL 3.0 records.
776 [Adam Langley (Google)]
778 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
779 Kadianakis <desnacked@gmail.com> for discovering this issue and
780 Adam Langley for preparing the fix. (CVE-2011-4619)
781 [Adam Langley (Google)]
783 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
784 [Andrey Kulikov <amdeich@gmail.com>]
786 *) Prevent malformed RFC3779 data triggering an assertion failure.
787 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
788 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
789 [Rob Austein <sra@hactrn.net>]
791 *) Improved PRNG seeding for VOS.
792 [Paul Green <Paul.Green@stratus.com>]
794 *) Fix ssl_ciph.c set-up race.
795 [Adam Langley (Google)]
797 *) Fix spurious failures in ecdsatest.c.
798 [Emilia Käsper (Google)]
800 *) Fix the BIO_f_buffer() implementation (which was mixing different
801 interpretations of the '..._len' fields).
802 [Adam Langley (Google)]
804 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
805 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
806 threads won't reuse the same blinding coefficients.
808 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
809 lock to call BN_BLINDING_invert_ex, and avoids one use of
810 BN_BLINDING_update for each BN_BLINDING structure (previously,
811 the last update always remained unused).
812 [Emilia Käsper (Google)]
814 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
815 [Bob Buckholz (Google)]
817 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
819 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
820 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
821 [Kaspar Brand <ossl@velox.ch>]
823 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
824 for multi-threaded use of ECDH. (CVE-2011-3210)
825 [Adam Langley (Google)]
827 *) Fix x509_name_ex_d2i memory leak on bad inputs.
830 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
831 signature public key algorithm by using OID xref utilities instead.
832 Before this you could only use some ECC ciphersuites with SHA1 only.
835 *) Add protection against ECDSA timing attacks as mentioned in the paper
836 by Billy Bob Brumley and Nicola Tuveri, see:
838 http://eprint.iacr.org/2011/232.pdf
840 [Billy Bob Brumley and Nicola Tuveri]
842 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
844 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
845 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
847 *) Fix bug in string printing code: if *any* escaping is enabled we must
848 escape the escape character (backslash) or the resulting string is
852 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
854 *) Disable code workaround for ancient and obsolete Netscape browsers
855 and servers: an attacker can use it in a ciphersuite downgrade attack.
856 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
859 *) Fixed J-PAKE implementation error, originally discovered by
860 Sebastien Martini, further info and confirmation from Stefan
861 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
864 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
866 *) Fix extension code to avoid race conditions which can result in a buffer
867 overrun vulnerability: resumed sessions must not be modified as they can
868 be shared by multiple threads. CVE-2010-3864
871 *) Fix WIN32 build system to correctly link an ENGINE directory into
875 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
877 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
879 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
881 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
883 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
884 context. The operation can be customised via the ctrl mechanism in
885 case ENGINEs want to include additional functionality.
888 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
891 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
892 output hashes compatible with older versions of OpenSSL.
893 [Willy Weisz <weisz@vcpc.univie.ac.at>]
895 *) Fix compression algorithm handling: if resuming a session use the
896 compression algorithm of the resumed session instead of determining
897 it from client hello again. Don't allow server to change algorithm.
900 *) Add load_crls() function to apps tidying load_certs() too. Add option
901 to verify utility to allow additional CRLs to be included.
904 *) Update OCSP request code to permit adding custom headers to the request:
905 some responders need this.
908 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
910 [Julia Lawall <julia@diku.dk>]
912 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
913 needlessly dereferenced structures, used obsolete functions and
914 didn't handle all updated verify codes correctly.
917 *) Disable MD2 in the default configuration.
920 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
921 indicate the initial BIO being pushed or popped. This makes it possible
922 to determine whether the BIO is the one explicitly called or as a result
923 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
924 it handles reference counts correctly and doesn't zero out the I/O bio
925 when it is not being explicitly popped. WARNING: applications which
926 included workarounds for the old buggy behaviour will need to be modified
927 or they could free up already freed BIOs.
930 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
931 renaming to all platforms (within the 0.9.8 branch, this was
932 done conditionally on Netware platforms to avoid a name clash).
933 [Guenter <lists@gknw.net>]
935 *) Add ECDHE and PSK support to DTLS.
936 [Michael Tuexen <tuexen@fh-muenster.de>]
938 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
942 *) Add "missing" function EVP_MD_flags() (without this the only way to
943 retrieve a digest flags is by accessing the structure directly. Update
944 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
945 or cipher is registered as in the "from" argument. Print out all
946 registered digests in the dgst usage message instead of manually
947 attempting to work them out.
950 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
951 this allows the use of compression and extensions. Change default cipher
952 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
953 by default unless an application cipher string requests it.
956 *) Alter match criteria in PKCS12_parse(). It used to try to use local
957 key ids to find matching certificates and keys but some PKCS#12 files
958 don't follow the (somewhat unwritten) rules and this strategy fails.
959 Now just gather all certificates together and the first private key
960 then look for the first certificate that matches the key.
963 *) Support use of registered digest and cipher names for dgst and cipher
964 commands instead of having to add each one as a special case. So now
971 openssl dgst -sha256 foo
973 and this works for ENGINE based algorithms too.
977 *) Update Gost ENGINE to support parameter files.
978 [Victor B. Wagner <vitus@cryptocom.ru>]
980 *) Support GeneralizedTime in ca utility.
981 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
983 *) Enhance the hash format used for certificate directory links. The new
984 form uses the canonical encoding (meaning equivalent names will work
985 even if they aren't identical) and uses SHA1 instead of MD5. This form
986 is incompatible with the older format and as a result c_rehash should
987 be used to rebuild symbolic links.
990 *) Make PKCS#8 the default write format for private keys, replacing the
991 traditional format. This form is standardised, more secure and doesn't
992 include an implicit MD5 dependency.
995 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
996 committed to OpenSSL should pass this lot as a minimum.
999 *) Add session ticket override functionality for use by EAP-FAST.
1000 [Jouni Malinen <j@w1.fi>]
1002 *) Modify HMAC functions to return a value. Since these can be implemented
1003 in an ENGINE errors can occur.
1006 *) Type-checked OBJ_bsearch_ex.
1009 *) Type-checked OBJ_bsearch. Also some constification necessitated
1010 by type-checking. Still to come: TXT_DB, bsearch(?),
1011 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
1015 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
1016 seconds to a tm structure directly, instead of going through OS
1017 specific date routines. This avoids any issues with OS routines such
1018 as the year 2038 bug. New *_adj() functions for ASN1 time structures
1019 and X509_time_adj_ex() to cover the extended range. The existing
1020 X509_time_adj() is still usable and will no longer have any date issues.
1023 *) Delta CRL support. New use deltas option which will attempt to locate
1024 and search any appropriate delta CRLs available.
1026 This work was sponsored by Google.
1029 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
1030 code and add additional score elements. Validate alternate CRL paths
1031 as part of the CRL checking and indicate a new error "CRL path validation
1032 error" in this case. Applications wanting additional details can use
1033 the verify callback and check the new "parent" field. If this is not
1034 NULL CRL path validation is taking place. Existing applications wont
1035 see this because it requires extended CRL support which is off by
1038 This work was sponsored by Google.
1041 *) Support for freshest CRL extension.
1043 This work was sponsored by Google.
1046 *) Initial indirect CRL support. Currently only supported in the CRLs
1047 passed directly and not via lookup. Process certificate issuer
1048 CRL entry extension and lookup CRL entries by bother issuer name
1049 and serial number. Check and process CRL issuer entry in IDP extension.
1051 This work was sponsored by Google.
1054 *) Add support for distinct certificate and CRL paths. The CRL issuer
1055 certificate is validated separately in this case. Only enabled if
1056 an extended CRL support flag is set: this flag will enable additional
1057 CRL functionality in future.
1059 This work was sponsored by Google.
1062 *) Add support for policy mappings extension.
1064 This work was sponsored by Google.
1067 *) Fixes to pathlength constraint, self issued certificate handling,
1068 policy processing to align with RFC3280 and PKITS tests.
1070 This work was sponsored by Google.
1073 *) Support for name constraints certificate extension. DN, email, DNS
1074 and URI types are currently supported.
1076 This work was sponsored by Google.
1079 *) To cater for systems that provide a pointer-based thread ID rather
1080 than numeric, deprecate the current numeric thread ID mechanism and
1081 replace it with a structure and associated callback type. This
1082 mechanism allows a numeric "hash" to be extracted from a thread ID in
1083 either case, and on platforms where pointers are larger than 'long',
1084 mixing is done to help ensure the numeric 'hash' is usable even if it
1085 can't be guaranteed unique. The default mechanism is to use "&errno"
1086 as a pointer-based thread ID to distinguish between threads.
1088 Applications that want to provide their own thread IDs should now use
1089 CRYPTO_THREADID_set_callback() to register a callback that will call
1090 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1092 Note that ERR_remove_state() is now deprecated, because it is tied
1093 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1094 to free the current thread's error state should be replaced by
1095 ERR_remove_thread_state(NULL).
1097 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1098 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1099 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1100 application was previously providing a numeric thread callback that
1101 was inappropriate for distinguishing threads, then uniqueness might
1102 have been obtained with &errno that happened immediately in the
1103 intermediate development versions of OpenSSL; this is no longer the
1104 case, the numeric thread callback will now override the automatic use
1106 [Geoff Thorpe, with help from Bodo Moeller]
1108 *) Initial support for different CRL issuing certificates. This covers a
1109 simple case where the self issued certificates in the chain exist and
1110 the real CRL issuer is higher in the existing chain.
1112 This work was sponsored by Google.
1115 *) Removed effectively defunct crypto/store from the build.
1118 *) Revamp of STACK to provide stronger type-checking. Still to come:
1119 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1120 ASN1_STRING, CONF_VALUE.
1123 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1124 RAM on SSL connections. This option can save about 34k per idle SSL.
1127 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1128 STACK, TXT_DB, bsearch, qsort.
1131 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1132 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1133 support for data, signedData, compressedData, digestedData and
1134 encryptedData, envelopedData types included. Scripts to check against
1135 RFC4134 examples draft and interop and consistency checks of many
1136 content types and variants.
1139 *) Add options to enc utility to support use of zlib compression BIO.
1142 *) Extend mk1mf to support importing of options and assembly language
1143 files from Configure script, currently only included in VC-WIN32.
1144 The assembly language rules can now optionally generate the source
1145 files from the associated perl scripts.
1148 *) Implement remaining functionality needed to support GOST ciphersuites.
1149 Interop testing has been performed using CryptoPro implementations.
1150 [Victor B. Wagner <vitus@cryptocom.ru>]
1152 *) s390x assembler pack.
1155 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1159 *) Implement Opaque PRF Input TLS extension as specified in
1160 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1161 official specification yet and no extension type assignment by
1162 IANA exists, this extension (for now) will have to be explicitly
1163 enabled when building OpenSSL by providing the extension number
1164 to use. For example, specify an option
1166 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1168 to the "config" or "Configure" script to enable the extension,
1169 assuming extension number 0x9527 (which is a completely arbitrary
1170 and unofficial assignment based on the MD5 hash of the Internet
1171 Draft). Note that by doing so, you potentially lose
1172 interoperability with other TLS implementations since these might
1173 be using the same extension number for other purposes.
1175 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1176 opaque PRF input value to use in the handshake. This will create
1177 an interal copy of the length-'len' string at 'src', and will
1178 return non-zero for success.
1180 To get more control and flexibility, provide a callback function
1183 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1184 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1188 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1191 Callback function 'cb' will be called in handshakes, and is
1192 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1193 Argument 'arg' is for application purposes (the value as given to
1194 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1195 be provided to the callback function). The callback function
1196 has to return non-zero to report success: usually 1 to use opaque
1197 PRF input just if possible, or 2 to enforce use of the opaque PRF
1198 input. In the latter case, the library will abort the handshake
1199 if opaque PRF input is not successfully negotiated.
1201 Arguments 'peerinput' and 'len' given to the callback function
1202 will always be NULL and 0 in the case of a client. A server will
1203 see the client's opaque PRF input through these variables if
1204 available (NULL and 0 otherwise). Note that if the server
1205 provides an opaque PRF input, the length must be the same as the
1206 length of the client's opaque PRF input.
1208 Note that the callback function will only be called when creating
1209 a new session (session resumption can resume whatever was
1210 previously negotiated), and will not be called in SSL 2.0
1211 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1212 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1213 for applications that need to enforce opaque PRF input.
1217 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1220 [Victor B. Wagner <vitus@cryptocom.ru>]
1222 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1223 RFC4507bis. The encrypted ticket format is an encrypted encoded
1224 SSL_SESSION structure, that way new session features are automatically
1227 If a client application caches session in an SSL_SESSION structure
1228 support is transparent because tickets are now stored in the encoded
1231 The SSL_CTX structure automatically generates keys for ticket
1232 protection in servers so again support should be possible
1233 with no application modification.
1235 If a client or server wishes to disable RFC4507 support then the option
1236 SSL_OP_NO_TICKET can be set.
1238 Add a TLS extension debugging callback to allow the contents of any client
1239 or server extensions to be examined.
1241 This work was sponsored by Google.
1244 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1245 OpenSSL should now compile cleanly on gcc 4.2
1246 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1248 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1249 support including streaming MAC support: this is required for GOST
1250 ciphersuite support.
1251 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1253 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1254 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1255 to output in BER and PEM format.
1258 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1259 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1260 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1261 ENGINE support for HMAC keys which are unextractable. New -mac and
1262 -macopt options to dgst utility.
1265 *) New option -sigopt to dgst utility. Update dgst to use
1266 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1267 alternative signing paramaters such as X9.31 or PSS in the dgst
1271 *) Change ssl_cipher_apply_rule(), the internal function that does
1272 the work each time a ciphersuite string requests enabling
1273 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1274 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1275 the order of disabled ciphersuites such that those ciphersuites
1276 that most recently went from enabled to disabled not only stay
1277 in order with respect to each other, but also have higher priority
1278 than other disabled ciphersuites the next time ciphersuites are
1281 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1282 the same ciphersuites as with "HIGH" alone, but in a specific
1283 order where the PSK ciphersuites come first (since they are the
1284 most recently disabled ciphersuites when "HIGH" is parsed).
1286 Also, change ssl_create_cipher_list() (using this new
1287 funcionality) such that between otherwise identical
1288 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1292 *) Change ssl_create_cipher_list() so that it automatically
1293 arranges the ciphersuites in reasonable order before starting
1294 to process the rule string. Thus, the definition for "DEFAULT"
1295 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1296 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1297 This makes it much easier to arrive at a reasonable default order
1298 in applications for which anonymous ciphers are OK (meaning
1299 that you can't actually use DEFAULT).
1300 [Bodo Moeller; suggested by Victor Duchovni]
1302 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1303 processing) into multiple integers instead of setting
1304 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1305 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1306 (These masks as well as the individual bit definitions are hidden
1307 away into the non-exported interface ssl/ssl_locl.h, so this
1308 change to the definition of the SSL_CIPHER structure shouldn't
1309 affect applications.) This give us more bits for each of these
1310 categories, so there is no longer a need to coagulate AES128 and
1311 AES256 into a single algorithm bit, and to coagulate Camellia128
1312 and Camellia256 into a single algorithm bit, which has led to all
1315 Thus, among other things, the kludge introduced in 0.9.7m and
1316 0.9.8e for masking out AES256 independently of AES128 or masking
1317 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1319 With the change, we also introduce new ciphersuite aliases that
1320 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1324 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1325 Use the leftmost N bytes of the signature input if the input is
1326 larger than the prime q (with N being the size in bytes of q).
1329 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1330 it yet and it is largely untested.
1333 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1336 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1337 some compilers (gcc 4.2 and later) reject their use. Safestack is
1338 reimplemented. Update ASN1 to avoid use of legacy functions.
1341 *) Win32/64 targets are linked with Winsock2.
1344 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1345 to external functions. This can be used to increase CRL handling
1346 efficiency especially when CRLs are very large by (for example) storing
1347 the CRL revoked certificates in a database.
1350 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1351 new CRLs added to a directory can be used. New command line option
1352 -verify_return_error to s_client and s_server. This causes real errors
1353 to be returned by the verify callback instead of carrying on no matter
1354 what. This reflects the way a "real world" verify callback would behave.
1357 *) GOST engine, supporting several GOST algorithms and public key formats.
1358 Kindly donated by Cryptocom.
1361 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1362 partitioned by DP are handled but no indirect CRL or reason partitioning
1363 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1364 selected via a scoring technique which handles IDP and AKID in CRLs.
1367 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1368 will ultimately be used for all verify operations: this will remove the
1369 X509_STORE dependency on certificate verification and allow alternative
1370 lookup methods. X509_STORE based implementations of these two callbacks.
1373 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1374 Modify get_crl() to find a valid (unexpired) CRL if possible.
1377 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1378 this would be called X509_CRL_cmp() but that name is already used by
1379 a function that just compares CRL issuer names. Cache several CRL
1380 extensions in X509_CRL structure and cache CRLDP in X509.
1383 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1384 this maps equivalent X509_NAME structures into a consistent structure.
1385 Name comparison can then be performed rapidly using memcmp().
1388 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1392 *) Allow digests to supply their own micalg string for S/MIME type using
1393 the ctrl EVP_MD_CTRL_MICALG.
1396 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1397 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1398 ctrl. It can then customise the structure before and/or after signing
1402 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1403 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1404 to free up any added signature OIDs.
1407 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1408 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1409 digest and cipher tables. New options added to openssl utility:
1410 list-message-digest-algorithms and list-cipher-algorithms.
1413 *) Change the array representation of binary polynomials: the list
1414 of degrees of non-zero coefficients is now terminated with -1.
1415 Previously it was terminated with 0, which was also part of the
1416 value; thus, the array representation was not applicable to
1417 polynomials where t^0 has coefficient zero. This change makes
1418 the array representation useful in a more general context.
1421 *) Various modifications and fixes to SSL/TLS cipher string
1422 handling. For ECC, the code now distinguishes between fixed ECDH
1423 with RSA certificates on the one hand and with ECDSA certificates
1424 on the other hand, since these are separate ciphersuites. The
1425 unused code for Fortezza ciphersuites has been removed.
1427 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1428 (not "ECDHE"). For consistency with the code for DH
1429 certificates, use of ECDH certificates is now considered ECDH
1430 authentication, not RSA or ECDSA authentication (the latter is
1431 merely the CA's signing algorithm and not actively used in the
1434 The temporary ciphersuite alias "ECCdraft" is no longer
1435 available, and ECC ciphersuites are no longer excluded from "ALL"
1436 and "DEFAULT". The following aliases now exist for RFC 4492
1437 ciphersuites, most of these by analogy with the DH case:
1439 kECDHr - ECDH cert, signed with RSA
1440 kECDHe - ECDH cert, signed with ECDSA
1441 kECDH - ECDH cert (signed with either RSA or ECDSA)
1442 kEECDH - ephemeral ECDH
1443 ECDH - ECDH cert or ephemeral ECDH
1449 AECDH - anonymous ECDH
1450 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1454 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1455 Use correct micalg parameters depending on digest(s) in signed message.
1458 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1459 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1462 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1463 an engine to register a method. Add ENGINE lookups for methods and
1464 functional reference processing.
1467 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1468 EVP_{Sign,Verify}* which allow an application to customise the signature
1472 *) New -resign option to smime utility. This adds one or more signers
1473 to an existing PKCS#7 signedData structure. Also -md option to use an
1474 alternative message digest algorithm for signing.
1477 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1478 create PKCS7 structures containing multiple signers. Update smime
1479 application to support multiple signers.
1482 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1486 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1487 Reorganize PBE internals to lookup from a static table using NIDs,
1488 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1489 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1490 PRF which will be automatically used with PBES2.
1493 *) Replace the algorithm specific calls to generate keys in "req" with the
1497 *) Update PKCS#7 enveloped data routines to use new API. This is now
1498 supported by any public key method supporting the encrypt operation. A
1499 ctrl is added to allow the public key algorithm to examine or modify
1500 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1504 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1505 a default digest type to use. In most cases this will be SHA1 but some
1506 algorithms (such as GOST) need to specify an alternative digest. The
1507 return value indicates how strong the prefernce is 1 means optional and
1508 2 is mandatory (that is it is the only supported type). Modify
1509 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1510 use the default md. Update openssl utilities to use the default digest
1511 type for signing if it is not explicitly indicated.
1514 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1515 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1516 signing method from the key type. This effectively removes the link
1517 between digests and public key types.
1520 *) Add an OID cross reference table and utility functions. Its purpose is to
1521 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1522 rsaEncryption. This will allow some of the algorithm specific hackery
1523 needed to use the correct OID to be removed.
1526 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1527 structures for PKCS7_sign(). They are now set up by the relevant public
1531 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1534 *) Add support for key derivation (agreement) in the API, DH method and
1538 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1539 public and private key formats. As a side effect these add additional
1540 command line functionality not previously available: DSA signatures can be
1541 generated and verified using pkeyutl and DH key support and generation in
1546 [Oliver Tappe <zooey@hirschkaefer.de>]
1548 *) New make target "install_html_docs" installs HTML renditions of the
1550 [Oliver Tappe <zooey@hirschkaefer.de>]
1552 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1553 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1554 support key and parameter generation and add initial key generation
1555 functionality for RSA.
1558 *) Add functions for main EVP_PKEY_method operations. The undocumented
1559 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1560 EVP_PKEY_{encrypt,decrypt}_old.
1563 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1564 key API, doesn't do much yet.
1567 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1568 public key algorithms. New option to openssl utility:
1569 "list-public-key-algorithms" to print out info.
1572 *) Implement the Supported Elliptic Curves Extension for
1573 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1576 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1577 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1580 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1581 utilities such as rsa, dsa, dsaparam etc except they process any key
1585 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1586 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1587 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1591 *) Initial support for pluggable public key ASN1.
1592 De-spaghettify the public key ASN1 handling. Move public and private
1593 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1594 algorithm specific handling to a single module within the relevant
1595 algorithm directory. Add functions to allow (near) opaque processing
1596 of public and private key structures.
1599 *) Implement the Supported Point Formats Extension for
1600 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1603 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1604 for the psk identity [hint] and the psk callback functions to the
1605 SSL_SESSION, SSL and SSL_CTX structure.
1608 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1612 SSL_CTX_use_psk_identity_hint
1613 SSL_get_psk_identity_hint
1614 SSL_get_psk_identity
1615 SSL_use_psk_identity_hint
1617 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1619 *) Add RFC 3161 compliant time stamp request creation, response generation
1620 and response verification functionality.
1621 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1623 *) Add initial support for TLS extensions, specifically for the server_name
1624 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1625 have new members for a host name. The SSL data structure has an
1626 additional member SSL_CTX *initial_ctx so that new sessions can be
1627 stored in that context to allow for session resumption, even after the
1628 SSL has been switched to a new SSL_CTX in reaction to a client's
1629 server_name extension.
1631 New functions (subject to change):
1633 SSL_get_servername()
1634 SSL_get_servername_type()
1637 New CTRL codes and macros (subject to change):
1639 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1640 - SSL_CTX_set_tlsext_servername_callback()
1641 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1642 - SSL_CTX_set_tlsext_servername_arg()
1643 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1645 openssl s_client has a new '-servername ...' option.
1647 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1648 '-key2 ...', '-servername_fatal' (subject to change). This allows
1649 testing the HostName extension for a specific single host name ('-cert'
1650 and '-key' remain fallbacks for handshakes without HostName
1651 negotiation). If the unrecogninzed_name alert has to be sent, this by
1652 default is a warning; it becomes fatal with the '-servername_fatal'
1655 [Peter Sylvester, Remy Allais, Christophe Renou]
1657 *) Whirlpool hash implementation is added.
1660 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1661 bn(64,32). Because of instruction set limitations it doesn't have
1662 any negative impact on performance. This was done mostly in order
1663 to make it possible to share assembler modules, such as bn_mul_mont
1664 implementations, between 32- and 64-bit builds without hassle.
1667 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1668 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1672 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1673 dedicated Montgomery multiplication procedure, is introduced.
1674 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1675 "64-bit" performance on certain 32-bit targets.
1678 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1679 in SSL structures. New SSL ctrl to set maximum send fragment size.
1680 Save memory by seeting the I/O buffer sizes dynamically instead of
1681 using the maximum available value.
1684 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1685 in addition to the text details.
1688 *) Very, very preliminary EXPERIMENTAL support for printing of general
1689 ASN1 structures. This currently produces rather ugly output and doesn't
1690 handle several customised structures at all.
1693 *) Integrated support for PVK file format and some related formats such
1694 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1695 these in the 'rsa' and 'dsa' utilities.
1698 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1701 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1702 place for the (very old) "NETSCAPE" format certificates which are now
1703 handled using new ASN1 code equivalents.
1706 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1707 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1708 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1711 *) Modify CRL distribution points extension code to print out previously
1712 unsupported fields. Enhance extension setting code to allow setting of
1716 *) Add print and set support for Issuing Distribution Point CRL extension.
1719 *) Change 'Configure' script to enable Camellia by default.
1722 Changes between 0.9.8x and 0.9.8y [5 Feb 2013]
1724 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
1726 This addresses the flaw in CBC record processing discovered by
1727 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
1728 at: http://www.isg.rhul.ac.uk/tls/
1730 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1731 Security Group at Royal Holloway, University of London
1732 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
1733 Emilia Käsper for the initial patch.
1735 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
1737 *) Return an error when checking OCSP signatures when key is NULL.
1738 This fixes a DoS attack. (CVE-2013-0166)
1741 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
1742 the right response is stapled. Also change SSL_get_certificate()
1743 so it returns the certificate actually sent.
1744 See http://rt.openssl.org/Ticket/Display.html?id=2836.
1745 (This is a backport)
1746 [Rob Stradling <rob.stradling@comodo.com>]
1748 *) Fix possible deadlock when decoding public keys.
1751 Changes between 0.9.8w and 0.9.8x [10 May 2012]
1753 *) Sanity check record length before skipping explicit IV in DTLS
1756 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
1757 fuzzing as a service testing platform.
1761 *) Initialise tkeylen properly when encrypting CMS messages.
1762 Thanks to Solar Designer of Openwall for reporting this issue.
1765 Changes between 0.9.8v and 0.9.8w [23 Apr 2012]
1767 *) The fix for CVE-2012-2110 did not take into account that the
1768 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an
1769 int in OpenSSL 0.9.8, making it still vulnerable. Fix by
1770 rejecting negative len parameter. (CVE-2012-2131)
1771 [Tomas Hoger <thoger@redhat.com>]
1773 Changes between 0.9.8u and 0.9.8v [19 Apr 2012]
1775 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
1776 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
1777 in CRYPTO_realloc_clean.
1779 Thanks to Tavis Ormandy, Google Security Team, for discovering this
1780 issue and to Adam Langley <agl@chromium.org> for fixing it.
1782 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
1784 Changes between 0.9.8t and 0.9.8u [12 Mar 2012]
1786 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
1787 in CMS and PKCS7 code. When RSA decryption fails use a random key for
1788 content decryption and always return the same error. Note: this attack
1789 needs on average 2^20 messages so it only affects automated senders. The
1790 old behaviour can be reenabled in the CMS code by setting the
1791 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
1792 an MMA defence is not necessary.
1793 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
1794 this issue. (CVE-2012-0884)
1797 *) Fix CVE-2011-4619: make sure we really are receiving a
1798 client hello before rejecting multiple SGC restarts. Thanks to
1799 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
1802 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1804 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1805 Thanks to Antonio Martin, Enterprise Secure Access Research and
1806 Development, Cisco Systems, Inc. for discovering this bug and
1807 preparing a fix. (CVE-2012-0050)
1810 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1812 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1813 of the Vaudenay padding oracle attack on CBC mode encryption
1814 which enables an efficient plaintext recovery attack against
1815 the OpenSSL implementation of DTLS. Their attack exploits timing
1816 differences arising during decryption processing. A research
1817 paper describing this attack can be found at:
1818 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1819 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1820 Security Group at Royal Holloway, University of London
1821 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1822 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1823 for preparing the fix. (CVE-2011-4108)
1824 [Robin Seggelmann, Michael Tuexen]
1826 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1827 [Ben Laurie, Kasper <ekasper@google.com>]
1829 *) Clear bytes used for block padding of SSL 3.0 records.
1831 [Adam Langley (Google)]
1833 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1834 Kadianakis <desnacked@gmail.com> for discovering this issue and
1835 Adam Langley for preparing the fix. (CVE-2011-4619)
1836 [Adam Langley (Google)]
1838 *) Prevent malformed RFC3779 data triggering an assertion failure.
1839 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1840 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1841 [Rob Austein <sra@hactrn.net>]
1843 *) Fix ssl_ciph.c set-up race.
1844 [Adam Langley (Google)]
1846 *) Fix spurious failures in ecdsatest.c.
1847 [Emilia Käsper (Google)]
1849 *) Fix the BIO_f_buffer() implementation (which was mixing different
1850 interpretations of the '..._len' fields).
1851 [Adam Langley (Google)]
1853 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1854 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1855 threads won't reuse the same blinding coefficients.
1857 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1858 lock to call BN_BLINDING_invert_ex, and avoids one use of
1859 BN_BLINDING_update for each BN_BLINDING structure (previously,
1860 the last update always remained unused).
1861 [Emilia Käsper (Google)]
1863 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1864 for multi-threaded use of ECDH.
1865 [Adam Langley (Google)]
1867 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1870 *) Add protection against ECDSA timing attacks as mentioned in the paper
1871 by Billy Bob Brumley and Nicola Tuveri, see:
1873 http://eprint.iacr.org/2011/232.pdf
1875 [Billy Bob Brumley and Nicola Tuveri]
1877 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1879 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1880 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1882 *) Fix bug in string printing code: if *any* escaping is enabled we must
1883 escape the escape character (backslash) or the resulting string is
1887 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1889 *) Disable code workaround for ancient and obsolete Netscape browsers
1890 and servers: an attacker can use it in a ciphersuite downgrade attack.
1891 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1894 *) Fixed J-PAKE implementation error, originally discovered by
1895 Sebastien Martini, further info and confirmation from Stefan
1896 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1899 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1901 *) Fix extension code to avoid race conditions which can result in a buffer
1902 overrun vulnerability: resumed sessions must not be modified as they can
1903 be shared by multiple threads. CVE-2010-3864
1906 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1909 *) Don't reencode certificate when calculating signature: cache and use
1910 the original encoding instead. This makes signature verification of
1911 some broken encodings work correctly.
1914 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1915 is also one of the inputs.
1916 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1918 *) Don't repeatedly append PBE algorithms to table if they already exist.
1919 Sort table on each new add. This effectively makes the table read only
1920 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1924 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1926 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1929 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1930 access or freeing data twice (CVE-2010-0742)
1931 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1933 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1934 common in certificates and some applications which only call
1935 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1939 Reduce copying into .apps and .test in makevms.com
1940 Don't try to use blank CA certificate in CA.com
1941 Allow use of C files from original directories in maketests.com
1942 [Steven M. Schweda" <sms@antinode.info>]
1944 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1946 *) When rejecting SSL/TLS records due to an incorrect version number, never
1947 update s->server with a new major version number. As of
1948 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1949 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1950 the previous behavior could result in a read attempt at NULL when
1951 receiving specific incorrect SSL/TLS records once record payload
1952 protection is active. (CVE-2010-0740)
1953 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1955 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1956 could be crashed if the relevant tables were not present (e.g. chrooted).
1957 [Tomas Hoger <thoger@redhat.com>]
1959 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1961 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1962 [Martin Olsson, Neel Mehta]
1964 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1965 accommodate for stack sorting, always a write lock!).
1968 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1969 excessive delays in the RAND_poll(): over a minute. As a workaround
1970 include a time check in the inner Heap32Next loop too.
1973 *) The code that handled flushing of data in SSL/TLS originally used the
1974 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1975 the problem outlined in PR#1949. The fix suggested there however can
1976 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1977 of Apache). So instead simplify the code to flush unconditionally.
1978 This should be fine since flushing with no data to flush is a no op.
1981 *) Handle TLS versions 2.0 and later properly and correctly use the
1982 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1983 off ancient servers have a habit of sticking around for a while...
1986 *) Modify compression code so it frees up structures without using the
1987 ex_data callbacks. This works around a problem where some applications
1988 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1989 restarting) then use compression (e.g. SSL with compression) later.
1990 This results in significant per-connection memory leaks and
1991 has caused some security issues including CVE-2008-1678 and
1995 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1996 change when encrypting or decrypting.
1999 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
2000 connect and renegotiate with servers which do not support RI.
2001 Until RI is more widely deployed this option is enabled by default.
2004 *) Add "missing" ssl ctrls to clear options and mode.
2007 *) If client attempts to renegotiate and doesn't support RI respond with
2008 a no_renegotiation alert as required by RFC5746. Some renegotiating
2009 TLS clients will continue a connection gracefully when they receive
2010 the alert. Unfortunately OpenSSL mishandled this alert and would hang
2011 waiting for a server hello which it will never receive. Now we treat a
2012 received no_renegotiation alert as a fatal error. This is because
2013 applications requesting a renegotiation might well expect it to succeed
2014 and would have no code in place to handle the server denying it so the
2015 only safe thing to do is to terminate the connection.
2018 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
2019 peer supports secure renegotiation and 0 otherwise. Print out peer
2020 renegotiation support in s_client/s_server.
2023 *) Replace the highly broken and deprecated SPKAC certification method with
2024 the updated NID creation version. This should correctly handle UTF8.
2027 *) Implement RFC5746. Re-enable renegotiation but require the extension
2028 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
2029 turns out to be a bad idea. It has been replaced by
2030 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
2031 SSL_CTX_set_options(). This is really not recommended unless you
2032 know what you are doing.
2033 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2035 *) Fixes to stateless session resumption handling. Use initial_ctx when
2036 issuing and attempting to decrypt tickets in case it has changed during
2037 servername handling. Use a non-zero length session ID when attempting
2038 stateless session resumption: this makes it possible to determine if
2039 a resumption has occurred immediately after receiving server hello
2040 (several places in OpenSSL subtly assume this) instead of later in
2044 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
2045 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
2046 fixes for a few places where the return code is not checked
2048 [Julia Lawall <julia@diku.dk>]
2050 *) Add --strict-warnings option to Configure script to include devteam
2051 warnings in other configurations.
2054 *) Add support for --libdir option and LIBDIR variable in makefiles. This
2055 makes it possible to install openssl libraries in locations which
2056 have names other than "lib", for example "/usr/lib64" which some
2058 [Steve Henson, based on patch from Jeremy Utley]
2060 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
2061 X690 8.9.12 and can produce some misleading textual output of OIDs.
2062 [Steve Henson, reported by Dan Kaminsky]
2064 *) Delete MD2 from algorithm tables. This follows the recommendation in
2065 several standards that it is not used in new applications due to
2066 several cryptographic weaknesses. For binary compatibility reasons
2067 the MD2 API is still compiled in by default.
2070 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
2074 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
2075 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
2077 [Guenter <lists@gknw.net>]
2079 *) Fix the server certificate chain building code to use X509_verify_cert(),
2080 it used to have an ad-hoc builder which was unable to cope with anything
2081 other than a simple chain.
2082 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
2084 *) Don't check self signed certificate signatures in X509_verify_cert()
2085 by default (a flag can override this): it just wastes time without
2086 adding any security. As a useful side effect self signed root CAs
2087 with non-FIPS digests are now usable in FIPS mode.
2090 *) In dtls1_process_out_of_seq_message() the check if the current message
2091 is already buffered was missing. For every new message was memory
2092 allocated, allowing an attacker to perform an denial of service attack
2093 with sending out of seq handshake messages until there is no memory
2094 left. Additionally every future messege was buffered, even if the
2095 sequence number made no sense and would be part of another handshake.
2096 So only messages with sequence numbers less than 10 in advance will be
2097 buffered. (CVE-2009-1378)
2098 [Robin Seggelmann, discovered by Daniel Mentz]
2100 *) Records are buffered if they arrive with a future epoch to be
2101 processed after finishing the corresponding handshake. There is
2102 currently no limitation to this buffer allowing an attacker to perform
2103 a DOS attack with sending records with future epochs until there is no
2104 memory left. This patch adds the pqueue_size() function to detemine
2105 the size of a buffer and limits the record buffer to 100 entries.
2107 [Robin Seggelmann, discovered by Daniel Mentz]
2109 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
2110 parent structure is freed. (CVE-2009-1379)
2113 *) Handle non-blocking I/O properly in SSL_shutdown() call.
2114 [Darryl Miles <darryl-mailinglists@netbauds.net>]
2117 [Ilya O. <vrghost@gmail.com>]
2119 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
2121 *) Disable renegotiation completely - this fixes a severe security
2122 problem (CVE-2009-3555) at the cost of breaking all
2123 renegotiation. Renegotiation can be re-enabled by setting
2124 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
2125 run-time. This is really not recommended unless you know what
2129 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
2131 *) Don't set val to NULL when freeing up structures, it is freed up by
2132 underlying code. If sizeof(void *) > sizeof(long) this can result in
2133 zeroing past the valid field. (CVE-2009-0789)
2134 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
2136 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
2137 checked correctly. This would allow some invalid signed attributes to
2138 appear to verify correctly. (CVE-2009-0591)
2139 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2141 *) Reject UniversalString and BMPString types with invalid lengths. This
2142 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
2143 a legal length. (CVE-2009-0590)
2146 *) Set S/MIME signing as the default purpose rather than setting it
2147 unconditionally. This allows applications to override it at the store
2151 *) Permit restricted recursion of ASN1 strings. This is needed in practice
2152 to handle some structures.
2155 *) Improve efficiency of mem_gets: don't search whole buffer each time
2157 [Jeremy Shapiro <jnshapir@us.ibm.com>]
2159 *) New -hex option for openssl rand.
2162 *) Print out UTF8String and NumericString when parsing ASN1.
2165 *) Support NumericString type for name components.
2168 *) Allow CC in the environment to override the automatically chosen
2169 compiler. Note that nothing is done to ensure flags work with the
2173 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2175 *) Properly check EVP_VerifyFinal() and similar return values
2177 [Ben Laurie, Bodo Moeller, Google Security Team]
2179 *) Enable TLS extensions by default.
2182 *) Allow the CHIL engine to be loaded, whether the application is
2183 multithreaded or not. (This does not release the developer from the
2184 obligation to set up the dynamic locking callbacks.)
2185 [Sander Temme <sander@temme.net>]
2187 *) Use correct exit code if there is an error in dgst command.
2188 [Steve Henson; problem pointed out by Roland Dirlewanger]
2190 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2191 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2194 *) Add experimental JPAKE support, including demo authentication in
2195 s_client and s_server.
2198 *) Set the comparison function in v3_addr_canonize().
2199 [Rob Austein <sra@hactrn.net>]
2201 *) Add support for XMPP STARTTLS in s_client.
2202 [Philip Paeps <philip@freebsd.org>]
2204 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2205 to ensure that even with this option, only ciphersuites in the
2206 server's preference list will be accepted. (Note that the option
2207 applies only when resuming a session, so the earlier behavior was
2208 just about the algorithm choice for symmetric cryptography.)
2211 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2213 *) Fix NULL pointer dereference if a DTLS server received
2214 ChangeCipherSpec as first record (CVE-2009-1386).
2217 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
2218 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2221 *) The fix in 0.9.8c that supposedly got rid of unsafe
2222 double-checked locking was incomplete for RSA blinding,
2223 addressing just one layer of what turns out to have been
2224 doubly unsafe triple-checked locking.
2226 So now fix this for real by retiring the MONT_HELPER macro
2227 in crypto/rsa/rsa_eay.c.
2229 [Bodo Moeller; problem pointed out by Marius Schilder]
2231 *) Various precautionary measures:
2233 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2235 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2236 (NB: This would require knowledge of the secret session ticket key
2237 to exploit, in which case you'd be SOL either way.)
2239 - Change bn_nist.c so that it will properly handle input BIGNUMs
2240 outside the expected range.
2242 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2245 [Neel Mehta, Bodo Moeller]
2247 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2248 the load fails. Useful for distros.
2249 [Ben Laurie and the FreeBSD team]
2251 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2254 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2257 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2259 This work was sponsored by Logica.
2262 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2263 keystores. Support for SSL/TLS client authentication too.
2264 Not compiled unless enable-capieng specified to Configure.
2266 This work was sponsored by Logica.
2269 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2270 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2271 attribute creation routines such as certifcate requests and PKCS#12
2275 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2277 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2278 handshake which could lead to a cilent crash as found using the
2279 Codenomicon TLS test suite (CVE-2008-1672)
2280 [Steve Henson, Mark Cox]
2282 *) Fix double free in TLS server name extensions which could lead to
2283 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2286 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2288 Clear the error queue to ensure that error entries left from
2289 older function calls do not interfere with the correct operation.
2290 [Lutz Jaenicke, Erik de Castro Lopo]
2292 *) Remove root CA certificates of commercial CAs:
2294 The OpenSSL project does not recommend any specific CA and does not
2295 have any policy with respect to including or excluding any CA.
2296 Therefore it does not make any sense to ship an arbitrary selection
2297 of root CA certificates with the OpenSSL software.
2300 *) RSA OAEP patches to fix two separate invalid memory reads.
2301 The first one involves inputs when 'lzero' is greater than
2302 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2303 before the beginning of from). The second one involves inputs where
2304 the 'db' section contains nothing but zeroes (there is a one-byte
2305 invalid read after the end of 'db').
2306 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2308 *) Partial backport from 0.9.9-dev:
2310 Introduce bn_mul_mont (dedicated Montgomery multiplication
2311 procedure) as a candidate for BIGNUM assembler implementation.
2312 While 0.9.9-dev uses assembler for various architectures, only
2313 x86_64 is available by default here in the 0.9.8 branch, and
2314 32-bit x86 is available through a compile-time setting.
2316 To try the 32-bit x86 assembler implementation, use Configure
2317 option "enable-montasm" (which exists only for this backport).
2319 As "enable-montasm" for 32-bit x86 disclaims code stability
2320 anyway, in this constellation we activate additional code
2321 backported from 0.9.9-dev for further performance improvements,
2322 namely BN_from_montgomery_word. (To enable this otherwise,
2323 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2325 [Andy Polyakov (backport partially by Bodo Moeller)]
2327 *) Add TLS session ticket callback. This allows an application to set
2328 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2329 values. This is useful for key rollover for example where several key
2330 sets may exist with different names.
2333 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2334 This was broken until now in 0.9.8 releases, such that the only way
2335 a registered ENGINE could be used (assuming it initialises
2336 successfully on the host) was to explicitly set it as the default
2337 for the relevant algorithms. This is in contradiction with 0.9.7
2338 behaviour and the documentation. With this fix, when an ENGINE is
2339 registered into a given algorithm's table of implementations, the
2340 'uptodate' flag is reset so that auto-discovery will be used next
2341 time a new context for that algorithm attempts to select an
2343 [Ian Lister (tweaked by Geoff Thorpe)]
2345 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2346 implemention in the following ways:
2348 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2351 Lack of BER streaming support means one pass streaming processing is
2352 only supported if data is detached: setting the streaming flag is
2353 ignored for embedded content.
2355 CMS support is disabled by default and must be explicitly enabled
2356 with the enable-cms configuration option.
2359 *) Update the GMP engine glue to do direct copies between BIGNUM and
2360 mpz_t when openssl and GMP use the same limb size. Otherwise the
2361 existing "conversion via a text string export" trick is still used.
2362 [Paul Sheer <paulsheer@gmail.com>]
2364 *) Zlib compression BIO. This is a filter BIO which compressed and
2365 uncompresses any data passed through it.
2368 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2369 RFC3394 compatible AES key wrapping.
2372 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2373 sets string data without copying. X509_ALGOR_set0() and
2374 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2375 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2376 from an X509_ATTRIBUTE structure optionally checking it occurs only
2377 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2381 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2382 to get the expected BN_FLG_CONSTTIME behavior.
2383 [Bodo Moeller (Google)]
2387 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2388 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2389 - added some more tests to do_tests.pl
2390 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2391 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2392 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2393 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2394 - various changes to netware.pl to enable gcc-cross builds on Win32
2396 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2397 - various changes to fix missing prototype warnings
2398 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2399 - added AES, WHIRLPOOL and CPUID assembler code to build files
2400 - added missing AES assembler make rules to mk1mf.pl
2401 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2402 [Guenter Knauf <eflash@gmx.net>]
2404 *) Implement certificate status request TLS extension defined in RFC3546.
2405 A client can set the appropriate parameters and receive the encoded
2406 OCSP response via a callback. A server can query the supplied parameters
2407 and set the encoded OCSP response in the callback. Add simplified examples
2408 to s_client and s_server.
2411 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2413 *) Fix various bugs:
2414 + Binary incompatibility of ssl_ctx_st structure
2415 + DTLS interoperation with non-compliant servers
2416 + Don't call get_session_cb() without proposed session
2417 + Fix ia64 assembler code
2418 [Andy Polyakov, Steve Henson]
2420 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2422 *) DTLS Handshake overhaul. There were longstanding issues with
2423 OpenSSL DTLS implementation, which were making it impossible for
2424 RFC 4347 compliant client to communicate with OpenSSL server.
2425 Unfortunately just fixing these incompatibilities would "cut off"
2426 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2427 server keeps tolerating non RFC compliant syntax. The opposite is
2428 not true, 0.9.8f client can not communicate with earlier server.
2429 This update even addresses CVE-2007-4995.
2432 *) Changes to avoid need for function casts in OpenSSL: some compilers
2433 (gcc 4.2 and later) reject their use.
2434 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2437 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2438 RFC4507bis. The encrypted ticket format is an encrypted encoded
2439 SSL_SESSION structure, that way new session features are automatically
2442 If a client application caches session in an SSL_SESSION structure
2443 support is transparent because tickets are now stored in the encoded
2446 The SSL_CTX structure automatically generates keys for ticket
2447 protection in servers so again support should be possible
2448 with no application modification.
2450 If a client or server wishes to disable RFC4507 support then the option
2451 SSL_OP_NO_TICKET can be set.
2453 Add a TLS extension debugging callback to allow the contents of any client
2454 or server extensions to be examined.
2456 This work was sponsored by Google.
2459 *) Add initial support for TLS extensions, specifically for the server_name
2460 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2461 have new members for a host name. The SSL data structure has an
2462 additional member SSL_CTX *initial_ctx so that new sessions can be
2463 stored in that context to allow for session resumption, even after the
2464 SSL has been switched to a new SSL_CTX in reaction to a client's
2465 server_name extension.
2467 New functions (subject to change):
2469 SSL_get_servername()
2470 SSL_get_servername_type()
2473 New CTRL codes and macros (subject to change):
2475 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2476 - SSL_CTX_set_tlsext_servername_callback()
2477 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2478 - SSL_CTX_set_tlsext_servername_arg()
2479 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2481 openssl s_client has a new '-servername ...' option.
2483 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2484 '-key2 ...', '-servername_fatal' (subject to change). This allows
2485 testing the HostName extension for a specific single host name ('-cert'
2486 and '-key' remain fallbacks for handshakes without HostName
2487 negotiation). If the unrecogninzed_name alert has to be sent, this by
2488 default is a warning; it becomes fatal with the '-servername_fatal'
2491 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2493 *) Add AES and SSE2 assembly language support to VC++ build.
2496 *) Mitigate attack on final subtraction in Montgomery reduction.
2499 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2500 (which previously caused an internal error).
2503 *) Squeeze another 10% out of IGE mode when in != out.
2506 *) AES IGE mode speedup.
2507 [Dean Gaudet (Google)]
2509 *) Add the Korean symmetric 128-bit cipher SEED (see
2510 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2511 add SEED ciphersuites from RFC 4162:
2513 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2514 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2515 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2516 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2518 To minimize changes between patchlevels in the OpenSSL 0.9.8
2519 series, SEED remains excluded from compilation unless OpenSSL
2520 is configured with 'enable-seed'.
2521 [KISA, Bodo Moeller]
2523 *) Mitigate branch prediction attacks, which can be practical if a
2524 single processor is shared, allowing a spy process to extract
2525 information. For detailed background information, see
2526 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2527 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2528 and Necessary Software Countermeasures"). The core of the change
2529 are new versions BN_div_no_branch() and
2530 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2531 respectively, which are slower, but avoid the security-relevant
2532 conditional branches. These are automatically called by BN_div()
2533 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2534 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2535 remove a conditional branch.
2537 BN_FLG_CONSTTIME is the new name for the previous
2538 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2539 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2540 in the exponent causes BN_mod_exp_mont() to use the alternative
2541 implementation in BN_mod_exp_mont_consttime().) The old name
2542 remains as a deprecated alias.
2544 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2545 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2546 constant-time implementations for more than just exponentiation.
2547 Here too the old name is kept as a deprecated alias.
2549 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2550 the BN_BLINDING structure gets an independent copy of the
2551 modulus. This means that the previous "BIGNUM *m" argument to
2552 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2553 essentially becomes "const BIGNUM *m", although we can't actually
2554 change this in the header file before 0.9.9. It allows
2555 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2556 enable BN_FLG_CONSTTIME.
2558 [Matthew D Wood (Intel Corp)]
2560 *) In the SSL/TLS server implementation, be strict about session ID
2561 context matching (which matters if an application uses a single
2562 external cache for different purposes). Previously,
2563 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2564 set. This did ensure strict client verification, but meant that,
2565 with applications using a single external cache for quite
2566 different requirements, clients could circumvent ciphersuite
2567 restrictions for a given session ID context by starting a session
2568 in a different context.
2571 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2572 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2573 authentication-only ciphersuites.
2576 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2577 not complete and could lead to a possible single byte overflow
2578 (CVE-2007-5135) [Ben Laurie]
2580 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2582 *) Since AES128 and AES256 (and similarly Camellia128 and
2583 Camellia256) share a single mask bit in the logic of
2584 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2585 kludge to work properly if AES128 is available and AES256 isn't
2586 (or if Camellia128 is available and Camellia256 isn't).
2589 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2590 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2591 When a point or a seed is encoded in a BIT STRING, we need to
2592 prevent the removal of trailing zero bits to get the proper DER
2593 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2594 of a NamedBitList, for which trailing 0 bits need to be removed.)
2597 *) Have SSL/TLS server implementation tolerate "mismatched" record
2598 protocol version while receiving ClientHello even if the
2599 ClientHello is fragmented. (The server can't insist on the
2600 particular protocol version it has chosen before the ServerHello
2601 message has informed the client about his choice.)
2604 *) Add RFC 3779 support.
2605 [Rob Austein for ARIN, Ben Laurie]
2607 *) Load error codes if they are not already present instead of using a
2608 static variable. This allows them to be cleanly unloaded and reloaded.
2609 Improve header file function name parsing.
2612 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2613 or CAPABILITY handshake as required by RFCs.
2616 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2618 *) Introduce limits to prevent malicious keys being able to
2619 cause a denial of service. (CVE-2006-2940)
2620 [Steve Henson, Bodo Moeller]
2622 *) Fix ASN.1 parsing of certain invalid structures that can result
2623 in a denial of service. (CVE-2006-2937) [Steve Henson]
2625 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2626 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2628 *) Fix SSL client code which could crash if connecting to a
2629 malicious SSLv2 server. (CVE-2006-4343)
2630 [Tavis Ormandy and Will Drewry, Google Security Team]
2632 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2633 match only those. Before that, "AES256-SHA" would be interpreted
2634 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2635 the same strength classification in 0.9.7h) as we currently only
2636 have a single AES bit in the ciphersuite description bitmap.
2637 That change, however, also applied to ciphersuite strings such as
2638 "RC4-MD5" that intentionally matched multiple ciphersuites --
2639 namely, SSL 2.0 ciphersuites in addition to the more common ones
2640 from SSL 3.0/TLS 1.0.
2642 So we change the selection algorithm again: Naming an explicit
2643 ciphersuite selects this one ciphersuite, and any other similar
2644 ciphersuite (same bitmap) from *other* protocol versions.
2645 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2646 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2648 Since SSL 2.0 does not have any ciphersuites for which the
2649 128/256 bit distinction would be relevant, this works for now.
2650 The proper fix will be to use different bits for AES128 and
2651 AES256, which would have avoided the problems from the beginning;
2652 however, bits are scarce, so we can only do this in a new release
2653 (not just a patchlevel) when we can change the SSL_CIPHER
2654 definition to split the single 'unsigned long mask' bitmap into
2655 multiple values to extend the available space.
2659 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2661 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2662 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2664 *) Add AES IGE and biIGE modes.
2667 *) Change the Unix randomness entropy gathering to use poll() when
2668 possible instead of select(), since the latter has some
2669 undesirable limitations.
2670 [Darryl Miles via Richard Levitte and Bodo Moeller]
2672 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2673 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2674 cannot be implicitly activated as part of, e.g., the "AES" alias.
2675 However, please upgrade to OpenSSL 0.9.9[-dev] for
2676 non-experimental use of the ECC ciphersuites to get TLS extension
2677 support, which is required for curve and point format negotiation
2678 to avoid potential handshake problems.
2681 *) Disable rogue ciphersuites:
2683 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2684 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2685 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2687 The latter two were purportedly from
2688 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2691 Also deactivate the remaining ciphersuites from
2692 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2693 unofficial, and the ID has long expired.
2696 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2697 dual-core machines) and other potential thread-safety issues.
2700 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2701 versions), which is now available for royalty-free use
2702 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2703 Also, add Camellia TLS ciphersuites from RFC 4132.
2705 To minimize changes between patchlevels in the OpenSSL 0.9.8
2706 series, Camellia remains excluded from compilation unless OpenSSL
2707 is configured with 'enable-camellia'.
2710 *) Disable the padding bug check when compression is in use. The padding
2711 bug check assumes the first packet is of even length, this is not
2712 necessarily true if compresssion is enabled and can result in false
2713 positives causing handshake failure. The actual bug test is ancient
2714 code so it is hoped that implementations will either have fixed it by
2715 now or any which still have the bug do not support compression.
2718 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2720 *) When applying a cipher rule check to see if string match is an explicit
2721 cipher suite and only match that one cipher suite if it is.
2724 *) Link in manifests for VC++ if needed.
2725 [Austin Ziegler <halostatue@gmail.com>]
2727 *) Update support for ECC-based TLS ciphersuites according to
2728 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2729 TLS extensions, which are supported starting with the 0.9.9
2730 branch, not in the OpenSSL 0.9.8 branch).
2733 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2734 opaque EVP_CIPHER_CTX handling.
2737 *) Fixes and enhancements to zlib compression code. We now only use
2738 "zlib1.dll" and use the default __cdecl calling convention on Win32
2739 to conform with the standards mentioned here:
2740 http://www.zlib.net/DLL_FAQ.txt
2741 Static zlib linking now works on Windows and the new --with-zlib-include
2742 --with-zlib-lib options to Configure can be used to supply the location
2743 of the headers and library. Gracefully handle case where zlib library
2747 *) Several fixes and enhancements to the OID generation code. The old code
2748 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2749 handle numbers larger than ULONG_MAX, truncated printing and had a
2750 non standard OBJ_obj2txt() behaviour.
2753 *) Add support for building of engines under engine/ as shared libraries
2754 under VC++ build system.
2757 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2758 Hopefully, we will not see any false combination of paths any more.
2761 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2763 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2764 (part of SSL_OP_ALL). This option used to disable the
2765 countermeasure against man-in-the-middle protocol-version
2766 rollback in the SSL 2.0 server implementation, which is a bad
2767 idea. (CVE-2005-2969)
2769 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2770 for Information Security, National Institute of Advanced Industrial
2771 Science and Technology [AIST], Japan)]
2773 *) Add two function to clear and return the verify parameter flags.
2776 *) Keep cipherlists sorted in the source instead of sorting them at
2777 runtime, thus removing the need for a lock.
2780 *) Avoid some small subgroup attacks in Diffie-Hellman.
2781 [Nick Mathewson and Ben Laurie]
2783 *) Add functions for well-known primes.
2786 *) Extended Windows CE support.
2787 [Satoshi Nakamura and Andy Polyakov]
2789 *) Initialize SSL_METHOD structures at compile time instead of during
2790 runtime, thus removing the need for a lock.
2793 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2794 attempting to decrypt each encrypted key in turn. Add support to
2798 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2800 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2803 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2806 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2807 key into the same file any more.
2810 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2813 *) Add -utf8 command line and config file option to 'ca'.
2814 [Stefan <stf@udoma.org]
2816 *) Removed the macro des_crypt(), as it seems to conflict with some
2817 libraries. Use DES_crypt().
2820 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2821 involves renaming the source and generated shared-libs for
2822 both. The engines will accept the corrected or legacy ids
2823 ('ncipher' and '4758_cca' respectively) when binding. NB,
2824 this only applies when building 'shared'.
2825 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2827 *) Add attribute functions to EVP_PKEY structure. Modify
2828 PKCS12_create() to recognize a CSP name attribute and
2829 use it. Make -CSP option work again in pkcs12 utility.
2832 *) Add new functionality to the bn blinding code:
2833 - automatic re-creation of the BN_BLINDING parameters after
2834 a fixed number of uses (currently 32)
2835 - add new function for parameter creation
2836 - introduce flags to control the update behaviour of the
2837 BN_BLINDING parameters
2838 - hide BN_BLINDING structure
2839 Add a second BN_BLINDING slot to the RSA structure to improve
2840 performance when a single RSA object is shared among several
2844 *) Add support for DTLS.
2845 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2847 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2848 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2851 *) Remove buggy and incompletet DH cert support from
2852 ssl/ssl_rsa.c and ssl/s3_both.c
2855 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2856 the apps/openssl applications.
2859 *) Compile clean with "-Wall -Wmissing-prototypes
2860 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2861 DEBUG_SAFESTACK must also be set.
2864 *) Change ./Configure so that certain algorithms can be disabled by default.
2865 The new counterpiece to "no-xxx" is "enable-xxx".
2867 The patented RC5 and MDC2 algorithms will now be disabled unless
2868 "enable-rc5" and "enable-mdc2", respectively, are specified.
2870 (IDEA remains enabled despite being patented. This is because IDEA
2871 is frequently required for interoperability, and there is no license
2872 fee for non-commercial use. As before, "no-idea" can be used to
2873 avoid this algorithm.)
2877 *) Add processing of proxy certificates (see RFC 3820). This work was
2878 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2879 EGEE (Enabling Grids for E-science in Europe).
2882 *) RC4 performance overhaul on modern architectures/implementations, such
2883 as Intel P4, IA-64 and AMD64.
2886 *) New utility extract-section.pl. This can be used specify an alternative
2887 section number in a pod file instead of having to treat each file as
2888 a separate case in Makefile. This can be done by adding two lines to the
2891 =for comment openssl_section:XXX
2893 The blank line is mandatory.
2897 *) New arguments -certform, -keyform and -pass for s_client and s_server
2898 to allow alternative format key and certificate files and passphrase
2902 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2903 update associated structures and add various utility functions.
2905 Add new policy related verify parameters, include policy checking in
2906 standard verify code. Enhance 'smime' application with extra parameters
2907 to support policy checking and print out.
2910 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2911 Nehemiah processors. These extensions support AES encryption in hardware
2912 as well as RNG (though RNG support is currently disabled).
2913 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2915 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2918 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2919 [Andy Polyakov and a number of other people]
2921 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2922 implementation contributed by IBM.
2923 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2925 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2926 exponent rather than 'unsigned long'. There is a corresponding change to
2927 the new 'rsa_keygen' element of the RSA_METHOD structure.
2928 [Jelte Jansen, Geoff Thorpe]
2930 *) Functionality for creating the initial serial number file is now
2931 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2933 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2934 number file to 1, which is bound to cause problems. To avoid
2935 the problems while respecting compatibility between different 0.9.7
2936 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2937 CA.pl for serial number initialization. With the new release 0.9.8,
2938 we can fix the problem directly in the 'ca' utility.)
2941 *) Reduced header interdepencies by declaring more opaque objects in
2942 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2943 give fewer recursive includes, which could break lazy source code - so
2944 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2945 developers should define this symbol when building and using openssl to
2946 ensure they track the recommended behaviour, interfaces, [etc], but
2947 backwards-compatible behaviour prevails when this isn't defined.
2950 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2953 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2954 This will generate a random key of the appropriate length based on the
2955 cipher context. The EVP_CIPHER can provide its own random key generation
2956 routine to support keys of a specific form. This is used in the des and
2957 3des routines to generate a key of the correct parity. Update S/MIME
2958 code to use new functions and hence generate correct parity DES keys.
2959 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2960 valid (weak or incorrect parity).
2963 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2964 as looking them up. This is useful when the verified structure may contain
2965 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2966 present unless the new PKCS7_NO_CRL flag is asserted.
2969 *) Extend ASN1 oid configuration module. It now additionally accepts the
2972 shortName = some long name, 1.2.3.4
2975 *) Reimplemented the BN_CTX implementation. There is now no more static
2976 limitation on the number of variables it can handle nor the depth of the
2977 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2978 information can now expand as required, and rather than having a single
2979 static array of bignums, BN_CTX now uses a linked-list of such arrays
2980 allowing it to expand on demand whilst maintaining the usefulness of
2981 BN_CTX's "bundling".
2984 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2985 to allow all RSA operations to function using a single BN_CTX.
2988 *) Preliminary support for certificate policy evaluation and checking. This
2989 is initially intended to pass the tests outlined in "Conformance Testing
2990 of Relying Party Client Certificate Path Processing Logic" v1.07.
2993 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2994 remained unused and not that useful. A variety of other little bignum
2995 tweaks and fixes have also been made continuing on from the audit (see
2999 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
3000 associated ASN1, EVP and SSL functions and old ASN1 macros.
3003 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
3004 and this should never fail. So the return value from the use of
3005 BN_set_word() (which can fail due to needless expansion) is now deprecated;
3006 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
3009 *) BN_CTX_get() should return zero-valued bignums, providing the same
3010 initialised value as BN_new().
3011 [Geoff Thorpe, suggested by Ulf Möller]
3013 *) Support for inhibitAnyPolicy certificate extension.
3016 *) An audit of the BIGNUM code is underway, for which debugging code is
3017 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
3018 is considered valid when processing BIGNUMs, and causes execution to
3019 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
3020 further steps are taken to deliberately pollute unused data in BIGNUM
3021 structures to try and expose faulty code further on. For now, openssl will
3022 (in its default mode of operation) continue to tolerate the inconsistent
3023 forms that it has tolerated in the past, but authors and packagers should
3024 consider trying openssl and their own applications when compiled with
3025 these debugging symbols defined. It will help highlight potential bugs in
3026 their own code, and will improve the test coverage for OpenSSL itself. At
3027 some point, these tighter rules will become openssl's default to improve
3028 maintainability, though the assert()s and other overheads will remain only
3029 in debugging configurations. See bn.h for more details.
3030 [Geoff Thorpe, Nils Larsch, Ulf Möller]
3032 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
3033 that can only be obtained through BN_CTX_new() (which implicitly
3034 initialises it). The presence of this function only made it possible
3035 to overwrite an existing structure (and cause memory leaks).
3038 *) Because of the callback-based approach for implementing LHASH as a
3039 template type, lh_insert() adds opaque objects to hash-tables and
3040 lh_doall() or lh_doall_arg() are typically used with a destructor callback
3041 to clean up those corresponding objects before destroying the hash table
3042 (and losing the object pointers). So some over-zealous constifications in
3043 LHASH have been relaxed so that lh_insert() does not take (nor store) the
3044 objects as "const" and the lh_doall[_arg] callback wrappers are not
3045 prototyped to have "const" restrictions on the object pointers they are
3046 given (and so aren't required to cast them away any more).
3049 *) The tmdiff.h API was so ugly and minimal that our own timing utility
3050 (speed) prefers to use its own implementation. The two implementations
3051 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
3052 its object type properly exposed (MS_TM) instead of casting to/from "char
3053 *". This may still change yet if someone realises MS_TM and "ms_time_***"
3054 aren't necessarily the greatest nomenclatures - but this is what was used
3055 internally to the implementation so I've used that for now.
3058 *) Ensure that deprecated functions do not get compiled when
3059 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
3060 the self-tests were still using deprecated key-generation functions so
3061 these have been updated also.
3064 *) Reorganise PKCS#7 code to separate the digest location functionality
3065 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
3066 New function PKCS7_set_digest() to set the digest type for PKCS#7
3067 digestedData type. Add additional code to correctly generate the
3068 digestedData type and add support for this type in PKCS7 initialization
3072 *) New function PKCS7_set0_type_other() this initializes a PKCS7
3073 structure of type "other".
3076 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
3077 sure the loop does correctly stop and breaking ("division by zero")
3078 modulus operations are not performed. The (pre-generated) prime
3079 table crypto/bn/bn_prime.h was already correct, but it could not be
3080 re-generated on some platforms because of the "division by zero"
3081 situation in the script.
3082 [Ralf S. Engelschall]
3084 *) Update support for ECC-based TLS ciphersuites according to
3085 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
3086 SHA-1 now is only used for "small" curves (where the
3087 representation of a field element takes up to 24 bytes); for
3088 larger curves, the field element resulting from ECDH is directly
3089 used as premaster secret.
3090 [Douglas Stebila (Sun Microsystems Laboratories)]
3092 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
3093 curve secp160r1 to the tests.
3094 [Douglas Stebila (Sun Microsystems Laboratories)]
3096 *) Add the possibility to load symbols globally with DSO.
3097 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
3099 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
3100 control of the error stack.
3103 *) Add support for STORE in ENGINE.
3106 *) Add the STORE type. The intention is to provide a common interface
3107 to certificate and key stores, be they simple file-based stores, or
3108 HSM-type store, or LDAP stores, or...
3109 NOTE: The code is currently UNTESTED and isn't really used anywhere.
3112 *) Add a generic structure called OPENSSL_ITEM. This can be used to
3113 pass a list of arguments to any function as well as provide a way
3114 for a function to pass data back to the caller.
3117 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
3118 works like BUF_strdup() but can be used to duplicate a portion of
3119 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
3123 *) Add the function sk_find_ex() which works like sk_find(), but will
3124 return an index to an element even if an exact match couldn't be
3125 found. The index is guaranteed to point at the element where the
3126 searched-for key would be inserted to preserve sorting order.
3129 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
3130 takes an extra flags argument for optional functionality. Currently,
3131 the following flags are defined:
3133 OBJ_BSEARCH_VALUE_ON_NOMATCH
3134 This one gets OBJ_bsearch_ex() to return a pointer to the first
3135 element where the comparing function returns a negative or zero
3138 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
3139 This one gets OBJ_bsearch_ex() to return a pointer to the first
3140 element where the comparing function returns zero. This is useful
3141 if there are more than one element where the comparing function
3145 *) Make it possible to create self-signed certificates with 'openssl ca'
3146 in such a way that the self-signed certificate becomes part of the
3147 CA database and uses the same mechanisms for serial number generation
3148 as all other certificate signing. The new flag '-selfsign' enables
3149 this functionality. Adapt CA.sh and CA.pl.in.
3152 *) Add functionality to check the public key of a certificate request
3153 against a given private. This is useful to check that a certificate
3154 request can be signed by that key (self-signing).
3157 *) Make it possible to have multiple active certificates with the same
3158 subject in the CA index file. This is done only if the keyword
3159 'unique_subject' is set to 'no' in the main CA section (default
3160 if 'CA_default') of the configuration file. The value is saved
3161 with the database itself in a separate index attribute file,
3162 named like the index file with '.attr' appended to the name.
3165 *) Generate muti valued AVAs using '+' notation in config files for
3169 *) Support for nameConstraints certificate extension.
3172 *) Support for policyConstraints certificate extension.
3175 *) Support for policyMappings certificate extension.
3178 *) Make sure the default DSA_METHOD implementation only uses its
3179 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3180 and change its own handlers to be NULL so as to remove unnecessary
3181 indirection. This lets alternative implementations fallback to the
3182 default implementation more easily.
3185 *) Support for directoryName in GeneralName related extensions
3189 *) Make it possible to link applications using Makefile.shared.
3190 Make that possible even when linking against static libraries!
3193 *) Support for single pass processing for S/MIME signing. This now
3194 means that S/MIME signing can be done from a pipe, in addition
3195 cleartext signing (multipart/signed type) is effectively streaming
3196 and the signed data does not need to be all held in memory.
3198 This is done with a new flag PKCS7_STREAM. When this flag is set
3199 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3200 is done after the data is output (and digests calculated) in
3201 SMIME_write_PKCS7().
3204 *) Add full support for -rpath/-R, both in shared libraries and
3205 applications, at least on the platforms where it's known how
3209 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3210 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3211 will now compute a table of multiples of the generator that
3212 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3213 faster (notably in the case of a single point multiplication,
3214 scalar * generator).
3215 [Nils Larsch, Bodo Moeller]
3217 *) IPv6 support for certificate extensions. The various extensions
3218 which use the IP:a.b.c.d can now take IPv6 addresses using the
3219 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3223 *) Added an ENGINE that implements RSA by performing private key
3224 exponentiations with the GMP library. The conversions to and from
3225 GMP's mpz_t format aren't optimised nor are any montgomery forms
3226 cached, and on x86 it appears OpenSSL's own performance has caught up.
3227 However there are likely to be other architectures where GMP could
3228 provide a boost. This ENGINE is not built in by default, but it can be
3229 specified at Configure time and should be accompanied by the necessary
3230 linker additions, eg;
3231 ./config -DOPENSSL_USE_GMP -lgmp
3234 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3235 testing availability of engines with "-t" - the old behaviour is
3236 produced by increasing the feature's verbosity with "-tt".
3239 *) ECDSA routines: under certain error conditions uninitialized BN objects
3240 could be freed. Solution: make sure initialization is performed early
3241 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3245 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3246 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3247 software implementations. For DSA and DH, parameter generation can
3248 also be overriden by providing the appropriate method callbacks.
3251 *) Change the "progress" mechanism used in key-generation and
3252 primality testing to functions that take a new BN_GENCB pointer in
3253 place of callback/argument pairs. The new API functions have "_ex"
3254 postfixes and the older functions are reimplemented as wrappers for
3255 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3256 declarations of the old functions to help (graceful) attempts to
3257 migrate to the new functions. Also, the new key-generation API
3258 functions operate on a caller-supplied key-structure and return
3259 success/failure rather than returning a key or NULL - this is to
3260 help make "keygen" another member function of RSA_METHOD etc.
3262 Example for using the new callback interface:
3264 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3268 BN_GENCB_set(&my_cb, my_callback, my_arg);
3270 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3271 /* For the meaning of a, b in calls to my_callback(), see the
3272 * documentation of the function that calls the callback.
3273 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3274 * my_callback should return 1 if it wants BN_is_prime_ex()
3275 * to continue, or 0 to stop.
3280 *) Change the ZLIB compression method to be stateful, and make it
3281 available to TLS with the number defined in
3282 draft-ietf-tls-compression-04.txt.
3285 *) Add the ASN.1 structures and functions for CertificatePair, which
3286 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3288 CertificatePair ::= SEQUENCE {
3289 forward [0] Certificate OPTIONAL,
3290 reverse [1] Certificate OPTIONAL,
3291 -- at least one of the pair shall be present -- }
3293 Also implement the PEM functions to read and write certificate
3294 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3296 This needed to be defined, mostly for the sake of the LDAP
3297 attribute crossCertificatePair, but may prove useful elsewhere as
3301 *) Make it possible to inhibit symlinking of shared libraries in
3302 Makefile.shared, for Cygwin's sake.
3305 *) Extend the BIGNUM API by creating a function
3306 void BN_set_negative(BIGNUM *a, int neg);
3307 and a macro that behave like
3308 int BN_is_negative(const BIGNUM *a);
3310 to avoid the need to access 'a->neg' directly in applications.
3313 *) Implement fast modular reduction for pseudo-Mersenne primes
3314 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3315 EC_GROUP_new_curve_GFp() will now automatically use this
3317 [Nils Larsch <nla@trustcenter.de>]
3319 *) Add new lock type (CRYPTO_LOCK_BN).
3322 *) Change the ENGINE framework to automatically load engines
3323 dynamically from specific directories unless they could be
3324 found to already be built in or loaded. Move all the
3325 current engines except for the cryptodev one to a new
3327 The engines in engines/ are built as shared libraries if
3328 the "shared" options was given to ./Configure or ./config.
3329 Otherwise, they are inserted in libcrypto.a.
3330 /usr/local/ssl/engines is the default directory for dynamic
3331 engines, but that can be overriden at configure time through
3332 the usual use of --prefix and/or --openssldir, and at run
3333 time with the environment variable OPENSSL_ENGINES.
3334 [Geoff Thorpe and Richard Levitte]
3336 *) Add Makefile.shared, a helper makefile to build shared
3337 libraries. Addapt Makefile.org.
3340 *) Add version info to Win32 DLLs.
3341 [Peter 'Luna' Runestig" <peter@runestig.com>]
3343 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3344 can be added using this API to created arbitrary PKCS#12
3345 files while avoiding the low level API.
3347 New options to PKCS12_create(), key or cert can be NULL and
3348 will then be omitted from the output file. The encryption
3349 algorithm NIDs can be set to -1 for no encryption, the mac
3350 iteration count can be set to 0 to omit the mac.
3352 Enhance pkcs12 utility by making the -nokeys and -nocerts
3353 options work when creating a PKCS#12 file. New option -nomac
3354 to omit the mac, NONE can be set for an encryption algorithm.
3355 New code is modified to use the enhanced PKCS12_create()
3356 instead of the low level API.
3359 *) Extend ASN1 encoder to support indefinite length constructed
3360 encoding. This can output sequences tags and octet strings in
3361 this form. Modify pk7_asn1.c to support indefinite length
3362 encoding. This is experimental and needs additional code to
3363 be useful, such as an ASN1 bio and some enhanced streaming
3366 Extend template encode functionality so that tagging is passed
3367 down to the template encoder.
3370 *) Let 'openssl req' fail if an argument to '-newkey' is not
3371 recognized instead of using RSA as a default.
3374 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3375 As these are not official, they are not included in "ALL";
3376 the "ECCdraft" ciphersuite group alias can be used to select them.
3377 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3379 *) Add ECDH engine support.
3380 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3382 *) Add ECDH in new directory crypto/ecdh/.
3383 [Douglas Stebila (Sun Microsystems Laboratories)]
3385 *) Let BN_rand_range() abort with an error after 100 iterations
3386 without success (which indicates a broken PRNG).
3389 *) Change BN_mod_sqrt() so that it verifies that the input value
3390 is really the square of the return value. (Previously,
3391 BN_mod_sqrt would show GIGO behaviour.)
3394 *) Add named elliptic curves over binary fields from X9.62, SECG,
3395 and WAP/WTLS; add OIDs that were still missing.
3397 [Sheueling Chang Shantz and Douglas Stebila
3398 (Sun Microsystems Laboratories)]
3400 *) Extend the EC library for elliptic curves over binary fields
3401 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3404 EC_GF2m_simple_method
3408 EC_GROUP_new_curve_GF2m
3409 EC_GROUP_set_curve_GF2m
3410 EC_GROUP_get_curve_GF2m
3411 EC_POINT_set_affine_coordinates_GF2m
3412 EC_POINT_get_affine_coordinates_GF2m
3413 EC_POINT_set_compressed_coordinates_GF2m
3415 Point compression for binary fields is disabled by default for
3416 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3419 As binary polynomials are represented as BIGNUMs, various members
3420 of the EC_GROUP and EC_POINT data structures can be shared
3421 between the implementations for prime fields and binary fields;
3422 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3423 are essentially identical to their ..._GFp counterparts.
3424 (For simplicity, the '..._GFp' prefix has been dropped from
3425 various internal method names.)
3427 An internal 'field_div' method (similar to 'field_mul' and
3428 'field_sqr') has been added; this is used only for binary fields.
3430 [Sheueling Chang Shantz and Douglas Stebila
3431 (Sun Microsystems Laboratories)]
3433 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3434 through methods ('mul', 'precompute_mult').
3436 The generic implementations (now internally called 'ec_wNAF_mul'
3437 and 'ec_wNAF_precomputed_mult') remain the default if these
3438 methods are undefined.
3440 [Sheueling Chang Shantz and Douglas Stebila
3441 (Sun Microsystems Laboratories)]
3443 *) New function EC_GROUP_get_degree, which is defined through
3444 EC_METHOD. For curves over prime fields, this returns the bit
3445 length of the modulus.
3447 [Sheueling Chang Shantz and Douglas Stebila
3448 (Sun Microsystems Laboratories)]
3450 *) New functions EC_GROUP_dup, EC_POINT_dup.
3451 (These simply call ..._new and ..._copy).
3453 [Sheueling Chang Shantz and Douglas Stebila
3454 (Sun Microsystems Laboratories)]
3456 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3457 Polynomials are represented as BIGNUMs (where the sign bit is not
3458 used) in the following functions [macros]:
3461 BN_GF2m_sub [= BN_GF2m_add]
3462 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3463 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3464 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3466 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3467 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3468 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3469 BN_GF2m_cmp [= BN_ucmp]
3471 (Note that only the 'mod' functions are actually for fields GF(2^m).
3472 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3474 For some functions, an the irreducible polynomial defining a
3475 field can be given as an 'unsigned int[]' with strictly
3476 decreasing elements giving the indices of those bits that are set;
3477 i.e., p[] represents the polynomial
3478 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3480 p[0] > p[1] > ... > p[k] = 0.
3481 This applies to the following functions:
3486 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3487 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3489 BN_GF2m_mod_sqrt_arr
3490 BN_GF2m_mod_solve_quad_arr
3494 Conversion can be performed by the following functions:
3499 bntest.c has additional tests for binary polynomial arithmetic.
3501 Two implementations for BN_GF2m_mod_div() are available.
3502 The default algorithm simply uses BN_GF2m_mod_inv() and
3503 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3504 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3505 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3507 [Sheueling Chang Shantz and Douglas Stebila
3508 (Sun Microsystems Laboratories)]
3510 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3511 functionality is disabled at compile-time.
3512 [Douglas Stebila <douglas.stebila@sun.com>]
3514 *) Change default behaviour of 'openssl asn1parse' so that more
3515 information is visible when viewing, e.g., a certificate:
3517 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3518 mode the content of non-printable OCTET STRINGs is output in a
3519 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3520 avoid the appearance of a printable string.
3521 [Nils Larsch <nla@trustcenter.de>]
3523 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3525 EC_GROUP_set_asn1_flag()
3526 EC_GROUP_get_asn1_flag()
3527 EC_GROUP_set_point_conversion_form()
3528 EC_GROUP_get_point_conversion_form()
3529 These control ASN1 encoding details:
3530 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3531 has been set to OPENSSL_EC_NAMED_CURVE.
3532 - Points are encoded in uncompressed form by default; options for
3533 asn1_for are as for point2oct, namely
3534 POINT_CONVERSION_COMPRESSED
3535 POINT_CONVERSION_UNCOMPRESSED
3536 POINT_CONVERSION_HYBRID
3538 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3541 EC_GROUP_get0_seed()
3542 EC_GROUP_get_seed_len()
3543 This is used only for ASN1 purposes (so far).
3544 [Nils Larsch <nla@trustcenter.de>]
3546 *) Add 'field_type' member to EC_METHOD, which holds the NID
3547 of the appropriate field type OID. The new function
3548 EC_METHOD_get_field_type() returns this value.
3549 [Nils Larsch <nla@trustcenter.de>]
3554 EC_POINT_point2hex()
3555 EC_POINT_hex2point()
3556 providing useful interfaces to EC_POINT_point2oct() and
3557 EC_POINT_oct2point().
3558 [Nils Larsch <nla@trustcenter.de>]
3560 *) Change internals of the EC library so that the functions
3561 EC_GROUP_set_generator()
3562 EC_GROUP_get_generator()
3563 EC_GROUP_get_order()
3564 EC_GROUP_get_cofactor()
3565 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3566 to methods, which would lead to unnecessary code duplication when
3567 adding different types of curves.
3568 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3570 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3571 arithmetic, and such that modified wNAFs are generated
3572 (which avoid length expansion in many cases).
3575 *) Add a function EC_GROUP_check_discriminant() (defined via
3576 EC_METHOD) that verifies that the curve discriminant is non-zero.
3578 Add a function EC_GROUP_check() that makes some sanity tests
3579 on a EC_GROUP, its generator and order. This includes
3580 EC_GROUP_check_discriminant().
3581 [Nils Larsch <nla@trustcenter.de>]
3583 *) Add ECDSA in new directory crypto/ecdsa/.
3585 Add applications 'openssl ecparam' and 'openssl ecdsa'
3586 (these are based on 'openssl dsaparam' and 'openssl dsa').
3588 ECDSA support is also included in various other files across the
3589 library. Most notably,
3590 - 'openssl req' now has a '-newkey ecdsa:file' option;
3591 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3592 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3593 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3594 them suitable for ECDSA where domain parameters must be
3595 extracted before the specific public key;
3596 - ECDSA engine support has been added.
3597 [Nils Larsch <nla@trustcenter.de>]
3599 *) Include some named elliptic curves, and add OIDs from X9.62,
3600 SECG, and WAP/WTLS. Each curve can be obtained from the new
3602 EC_GROUP_new_by_curve_name(),
3603 and the list of available named curves can be obtained with
3604 EC_get_builtin_curves().
3605 Also add a 'curve_name' member to EC_GROUP objects, which can be
3607 EC_GROUP_set_curve_name()
3608 EC_GROUP_get_curve_name()
3609 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3611 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3612 was actually never needed) and in BN_mul(). The removal in BN_mul()
3613 required a small change in bn_mul_part_recursive() and the addition
3614 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3615 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3616 bn_sub_words() and bn_add_words() except they take arrays with
3620 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3622 *) Cleanse PEM buffers before freeing them since they may contain
3624 [Benjamin Bennett <ben@psc.edu>]
3626 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3627 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3628 authentication-only ciphersuites.
3631 *) Since AES128 and AES256 share a single mask bit in the logic of
3632 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3633 kludge to work properly if AES128 is available and AES256 isn't.
3636 *) Expand security boundary to match 1.1.1 module.
3639 *) Remove redundant features: hash file source, editing of test vectors
3640 modify fipsld to use external fips_premain.c signature.
3643 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3644 run algorithm test programs.
3647 *) Make algorithm test programs more tolerant of whitespace.
3650 *) Have SSL/TLS server implementation tolerate "mismatched" record
3651 protocol version while receiving ClientHello even if the
3652 ClientHello is fragmented. (The server can't insist on the
3653 particular protocol version it has chosen before the ServerHello
3654 message has informed the client about his choice.)
3657 *) Load error codes if they are not already present instead of using a
3658 static variable. This allows them to be cleanly unloaded and reloaded.
3661 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3663 *) Introduce limits to prevent malicious keys being able to
3664 cause a denial of service. (CVE-2006-2940)
3665 [Steve Henson, Bodo Moeller]
3667 *) Fix ASN.1 parsing of certain invalid structures that can result
3668 in a denial of service. (CVE-2006-2937) [Steve Henson]
3670 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3671 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3673 *) Fix SSL client code which could crash if connecting to a
3674 malicious SSLv2 server. (CVE-2006-4343)
3675 [Tavis Ormandy and Will Drewry, Google Security Team]
3677 *) Change ciphersuite string processing so that an explicit
3678 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3679 will no longer include "AES128-SHA"), and any other similar
3680 ciphersuite (same bitmap) from *other* protocol versions (so that
3681 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3682 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3683 changes from 0.9.8b and 0.9.8d.
3686 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3688 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3689 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3691 *) Change the Unix randomness entropy gathering to use poll() when
3692 possible instead of select(), since the latter has some
3693 undesirable limitations.
3694 [Darryl Miles via Richard Levitte and Bodo Moeller]
3696 *) Disable rogue ciphersuites:
3698 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3699 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3700 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3702 The latter two were purportedly from
3703 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3706 Also deactive the remaining ciphersuites from
3707 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3708 unofficial, and the ID has long expired.
3711 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3712 dual-core machines) and other potential thread-safety issues.
3715 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3717 *) Adapt fipsld and the build system to link against the validated FIPS
3718 module in FIPS mode.
3721 *) Fixes for VC++ 2005 build under Windows.
3724 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3725 from a Windows bash shell such as MSYS. It is autodetected from the
3726 "config" script when run from a VC++ environment. Modify standard VC++
3727 build to use fipscanister.o from the GNU make build.
3730 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3732 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3733 The value now differs depending on if you build for FIPS or not.
3734 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3735 safely run with a non-FIPSed libcrypto, as it may crash because of
3736 the difference induced by this change.
3739 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3741 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3742 (part of SSL_OP_ALL). This option used to disable the
3743 countermeasure against man-in-the-middle protocol-version
3744 rollback in the SSL 2.0 server implementation, which is a bad
3745 idea. (CVE-2005-2969)
3747 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3748 for Information Security, National Institute of Advanced Industrial
3749 Science and Technology [AIST], Japan)]
3751 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3752 mainly for FIPS compliance and not fully integrated at this stage.
3755 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3756 the exponentiation using a fixed-length exponent. (Otherwise,
3757 the information leaked through timing could expose the secret key
3758 after many signatures; cf. Bleichenbacher's attack on DSA with
3762 *) Make a new fixed-window mod_exp implementation the default for
3763 RSA, DSA, and DH private-key operations so that the sequence of
3764 squares and multiplies and the memory access pattern are
3765 independent of the particular secret key. This will mitigate
3766 cache-timing and potential related attacks.
3768 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3769 and this is automatically used by BN_mod_exp_mont() if the new flag
3770 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3771 will use this BN flag for private exponents unless the flag
3772 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3773 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3775 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3777 *) Change the client implementation for SSLv23_method() and
3778 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3779 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3780 (Previously, the SSL 2.0 backwards compatible Client Hello
3781 message format would be used even with SSL_OP_NO_SSLv2.)
3784 *) Add support for smime-type MIME parameter in S/MIME messages which some
3788 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3789 a threadsafe manner. Modify rsa code to use new function and add calls
3790 to dsa and dh code (which had race conditions before).
3793 *) Include the fixed error library code in the C error file definitions
3794 instead of fixing them up at runtime. This keeps the error code
3795 structures constant.
3798 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3800 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3803 *) Fixes for newer kerberos headers. NB: the casts are needed because
3804 the 'length' field is signed on one version and unsigned on another
3805 with no (?) obvious way to tell the difference, without these VC++
3806 complains. Also the "definition" of FAR (blank) is no longer included
3807 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3808 some needed definitions.
3811 *) Undo Cygwin change.
3814 *) Added support for proxy certificates according to RFC 3820.
3815 Because they may be a security thread to unaware applications,
3816 they must be explicitely allowed in run-time. See
3817 docs/HOWTO/proxy_certificates.txt for further information.
3820 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3822 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3823 server and client random values. Previously
3824 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3825 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3827 This change has negligible security impact because:
3829 1. Server and client random values still have 24 bytes of pseudo random
3832 2. Server and client random values are sent in the clear in the initial
3835 3. The master secret is derived using the premaster secret (48 bytes in
3836 size for static RSA ciphersuites) as well as client server and random
3839 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3842 [Stephen Henson, reported by UK NISCC]
3844 *) Use Windows randomness collection on Cygwin.
3847 *) Fix hang in EGD/PRNGD query when communication socket is closed
3848 prematurely by EGD/PRNGD.
3849 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3851 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3854 *) Back-port of selected performance improvements from development
3855 branch, as well as improved support for PowerPC platforms.
3858 *) Add lots of checks for memory allocation failure, error codes to indicate
3859 failure and freeing up memory if a failure occurs.
3860 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3862 *) Add new -passin argument to dgst.
3865 *) Perform some character comparisons of different types in X509_NAME_cmp:
3866 this is needed for some certificates that reencode DNs into UTF8Strings
3867 (in violation of RFC3280) and can't or wont issue name rollover
3871 *) Make an explicit check during certificate validation to see that
3872 the CA setting in each certificate on the chain is correct. As a
3873 side effect always do the following basic checks on extensions,
3874 not just when there's an associated purpose to the check:
3876 - if there is an unhandled critical extension (unless the user
3877 has chosen to ignore this fault)
3878 - if the path length has been exceeded (if one is set at all)
3879 - that certain extensions fit the associated purpose (if one has
3883 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3885 *) Avoid a race condition when CRLs are checked in a multi threaded
3886 environment. This would happen due to the reordering of the revoked
3887 entries during signature checking and serial number lookup. Now the
3888 encoding is cached and the serial number sort performed under a lock.
3889 Add new STACK function sk_is_sorted().
3892 *) Add Delta CRL to the extension code.
3895 *) Various fixes to s3_pkt.c so alerts are sent properly.
3896 [David Holmes <d.holmes@f5.com>]
3898 *) Reduce the chances of duplicate issuer name and serial numbers (in
3899 violation of RFC3280) using the OpenSSL certificate creation utilities.
3900 This is done by creating a random 64 bit value for the initial serial
3901 number when a serial number file is created or when a self signed
3902 certificate is created using 'openssl req -x509'. The initial serial
3903 number file is created using 'openssl x509 -next_serial' in CA.pl
3904 rather than being initialized to 1.
3907 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3909 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3910 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3911 [Joe Orton, Steve Henson]
3913 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3915 [Joe Orton, Steve Henson]
3917 *) Make it possible to have multiple active certificates with the same
3918 subject in the CA index file. This is done only if the keyword
3919 'unique_subject' is set to 'no' in the main CA section (default
3920 if 'CA_default') of the configuration file. The value is saved
3921 with the database itself in a separate index attribute file,
3922 named like the index file with '.attr' appended to the name.
3925 *) X509 verify fixes. Disable broken certificate workarounds when
3926 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3927 keyUsage extension present. Don't accept CRLs with unhandled critical
3928 extensions: since verify currently doesn't process CRL extensions this
3929 rejects a CRL with *any* critical extensions. Add new verify error codes
3933 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3934 A clarification of RFC2560 will require the use of OCTET STRINGs and
3935 some implementations cannot handle the current raw format. Since OpenSSL
3936 copies and compares OCSP nonces as opaque blobs without any attempt at
3937 parsing them this should not create any compatibility issues.
3940 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3941 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3942 this HMAC (and other) operations are several times slower than OpenSSL
3946 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3947 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3949 *) Use the correct content when signing type "other".
3952 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3954 *) Fix various bugs revealed by running the NISCC test suite:
3956 Stop out of bounds reads in the ASN1 code when presented with
3957 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3959 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3961 If verify callback ignores invalid public key errors don't try to check
3962 certificate signature with the NULL public key.
3966 *) New -ignore_err option in ocsp application to stop the server
3967 exiting on the first error in a request.
3970 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3971 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3975 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3976 extra data after the compression methods not only for TLS 1.0
3977 but also for SSL 3.0 (as required by the specification).
3978 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3980 *) Change X509_certificate_type() to mark the key as exported/exportable
3981 when it's 512 *bits* long, not 512 bytes.
3984 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3985 blocks during encryption.
3988 *) Various fixes to base64 BIO and non blocking I/O. On write
3989 flushes were not handled properly if the BIO retried. On read
3990 data was not being buffered properly and had various logic bugs.
3991 This also affects blocking I/O when the data being decoded is a
3995 *) Various S/MIME bugfixes and compatibility changes:
3996 output correct application/pkcs7 MIME type if
3997 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3998 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3999 of files as .eml work). Correctly handle very long lines in MIME
4003 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
4005 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4006 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4007 a protocol version number mismatch like a decryption error
4008 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4011 *) Turn on RSA blinding by default in the default implementation
4012 to avoid a timing attack. Applications that don't want it can call
4013 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4014 They would be ill-advised to do so in most cases.
4015 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4017 *) Change RSA blinding code so that it works when the PRNG is not
4018 seeded (in this case, the secret RSA exponent is abused as
4019 an unpredictable seed -- if it is not unpredictable, there
4020 is no point in blinding anyway). Make RSA blinding thread-safe
4021 by remembering the creator's thread ID in rsa->blinding and
4022 having all other threads use local one-time blinding factors
4023 (this requires more computation than sharing rsa->blinding, but
4024 avoids excessive locking; and if an RSA object is not shared
4025 between threads, blinding will still be very fast).
4028 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
4029 ENGINE as defaults for all supported algorithms irrespective of
4030 the 'flags' parameter. 'flags' is now honoured, so applications
4031 should make sure they are passing it correctly.
4034 *) Target "mingw" now allows native Windows code to be generated in
4035 the Cygwin environment as well as with the MinGW compiler.
4038 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
4040 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4041 via timing by performing a MAC computation even if incorrrect
4042 block cipher padding has been found. This is a countermeasure
4043 against active attacks where the attacker has to distinguish
4044 between bad padding and a MAC verification error. (CVE-2003-0078)
4046 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4047 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4048 Martin Vuagnoux (EPFL, Ilion)]
4050 *) Make the no-err option work as intended. The intention with no-err
4051 is not to have the whole error stack handling routines removed from
4052 libcrypto, it's only intended to remove all the function name and
4053 reason texts, thereby removing some of the footprint that may not
4054 be interesting if those errors aren't displayed anyway.
4056 NOTE: it's still possible for any application or module to have it's
4057 own set of error texts inserted. The routines are there, just not
4058 used by default when no-err is given.
4061 *) Add support for FreeBSD on IA64.
4062 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
4064 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
4065 Kerberos function mit_des_cbc_cksum(). Before this change,
4066 the value returned by DES_cbc_cksum() was like the one from
4067 mit_des_cbc_cksum(), except the bytes were swapped.
4068 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
4070 *) Allow an application to disable the automatic SSL chain building.
4071 Before this a rather primitive chain build was always performed in
4072 ssl3_output_cert_chain(): an application had no way to send the
4073 correct chain if the automatic operation produced an incorrect result.
4075 Now the chain builder is disabled if either:
4077 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
4079 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
4081 The reasoning behind this is that an application would not want the
4082 auto chain building to take place if extra chain certificates are
4083 present and it might also want a means of sending no additional
4084 certificates (for example the chain has two certificates and the
4088 *) Add the possibility to build without the ENGINE framework.
4089 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4091 *) Under Win32 gmtime() can return NULL: check return value in
4092 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
4095 *) DSA routines: under certain error conditions uninitialized BN objects
4096 could be freed. Solution: make sure initialization is performed early
4097 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
4098 Nils Larsch <nla@trustcenter.de> via PR#459)
4101 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
4102 checked on reconnect on the client side, therefore session resumption
4103 could still fail with a "ssl session id is different" error. This
4104 behaviour is masked when SSL_OP_ALL is used due to
4105 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
4106 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4107 followup to PR #377.
4110 *) IA-32 assembler support enhancements: unified ELF targets, support
4111 for SCO/Caldera platforms, fix for Cygwin shared build.
4114 *) Add support for FreeBSD on sparc64. As a consequence, support for
4115 FreeBSD on non-x86 processors is separate from x86 processors on
4116 the config script, much like the NetBSD support.
4117 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
4119 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
4121 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
4124 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
4125 code (06) was taken as the first octet of the session ID and the last
4126 octet was ignored consequently. As a result SSLv2 client side session
4127 caching could not have worked due to the session ID mismatch between
4129 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4133 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
4134 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
4138 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
4139 seems that in spite of existing for more than a year, many application
4140 author have done nothing to provide the necessary callbacks, which
4141 means that this particular engine will not work properly anywhere.
4142 This is a very unfortunate situation which forces us, in the name
4143 of usability, to give the hw_ncipher.c a static lock, which is part
4145 NOTE: This is for the 0.9.7 series ONLY. This hack will never
4146 appear in 0.9.8 or later. We EXPECT application authors to have
4147 dealt properly with this when 0.9.8 is released (unless we actually
4148 make such changes in the libcrypto locking code that changes will
4149 have to be made anyway).
4152 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
4153 octets have been read, EOF or an error occurs. Without this change
4154 some truncated ASN1 structures will not produce an error.
4157 *) Disable Heimdal support, since it hasn't been fully implemented.
4158 Still give the possibility to force the use of Heimdal, but with
4159 warnings and a request that patches get sent to openssl-dev.
4162 *) Add the VC-CE target, introduce the WINCE sysname, and add
4163 INSTALL.WCE and appropriate conditionals to make it build.
4164 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4166 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
4167 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4168 edit numbers of the version.
4169 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4171 *) Introduce safe string copy and catenation functions
4172 (BUF_strlcpy() and BUF_strlcat()).
4173 [Ben Laurie (CHATS) and Richard Levitte]
4175 *) Avoid using fixed-size buffers for one-line DNs.
4176 [Ben Laurie (CHATS)]
4178 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4179 resizing buffers containing secrets, and use where appropriate.
4180 [Ben Laurie (CHATS)]
4182 *) Avoid using fixed size buffers for configuration file location.
4183 [Ben Laurie (CHATS)]
4185 *) Avoid filename truncation for various CA files.
4186 [Ben Laurie (CHATS)]
4188 *) Use sizeof in preference to magic numbers.
4189 [Ben Laurie (CHATS)]
4191 *) Avoid filename truncation in cert requests.
4192 [Ben Laurie (CHATS)]
4194 *) Add assertions to check for (supposedly impossible) buffer
4196 [Ben Laurie (CHATS)]
4198 *) Don't cache truncated DNS entries in the local cache (this could
4199 potentially lead to a spoofing attack).
4200 [Ben Laurie (CHATS)]
4202 *) Fix various buffers to be large enough for hex/decimal
4203 representations in a platform independent manner.
4204 [Ben Laurie (CHATS)]
4206 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4207 resizing buffers containing secrets, and use where appropriate.
4208 [Ben Laurie (CHATS)]
4210 *) Add BIO_indent() to avoid much slightly worrying code to do
4212 [Ben Laurie (CHATS)]
4214 *) Convert sprintf()/BIO_puts() to BIO_printf().
4215 [Ben Laurie (CHATS)]
4217 *) buffer_gets() could terminate with the buffer only half
4219 [Ben Laurie (CHATS)]
4221 *) Add assertions to prevent user-supplied crypto functions from
4222 overflowing internal buffers by having large block sizes, etc.
4223 [Ben Laurie (CHATS)]
4225 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4227 [Ben Laurie (CHATS)]
4229 *) Eliminate unused copy of key in RC4.
4230 [Ben Laurie (CHATS)]
4232 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4233 [Ben Laurie (CHATS)]
4235 *) Fix off-by-one error in EGD path.
4236 [Ben Laurie (CHATS)]
4238 *) If RANDFILE path is too long, ignore instead of truncating.
4239 [Ben Laurie (CHATS)]
4241 *) Eliminate unused and incorrectly sized X.509 structure
4243 [Ben Laurie (CHATS)]
4245 *) Eliminate unused and dangerous function knumber().
4246 [Ben Laurie (CHATS)]
4248 *) Eliminate unused and dangerous structure, KSSL_ERR.
4249 [Ben Laurie (CHATS)]
4251 *) Protect against overlong session ID context length in an encoded
4252 session object. Since these are local, this does not appear to be
4254 [Ben Laurie (CHATS)]
4256 *) Change from security patch (see 0.9.6e below) that did not affect
4257 the 0.9.6 release series:
4259 Remote buffer overflow in SSL3 protocol - an attacker could
4260 supply an oversized master key in Kerberos-enabled versions.
4262 [Ben Laurie (CHATS)]
4264 *) Change the SSL kerb5 codes to match RFC 2712.
4267 *) Make -nameopt work fully for req and add -reqopt switch.
4268 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4270 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4271 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4273 *) Make sure tests can be performed even if the corresponding algorithms
4274 have been removed entirely. This was also the last step to make
4275 OpenSSL compilable with DJGPP under all reasonable conditions.
4276 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4278 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4279 to allow version independent disabling of normally unselected ciphers,
4280 which may be activated as a side-effect of selecting a single cipher.
4282 (E.g., cipher list string "RSA" enables ciphersuites that are left
4283 out of "ALL" because they do not provide symmetric encryption.
4284 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4285 [Lutz Jaenicke, Bodo Moeller]
4287 *) Add appropriate support for separate platform-dependent build
4288 directories. The recommended way to make a platform-dependent
4289 build directory is the following (tested on Linux), maybe with
4292 # Place yourself outside of the OpenSSL source tree. In
4293 # this example, the environment variable OPENSSL_SOURCE
4294 # is assumed to contain the absolute OpenSSL source directory.
4295 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4296 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4297 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4298 mkdir -p `dirname $F`
4299 ln -s $OPENSSL_SOURCE/$F $F
4302 To be absolutely sure not to disturb the source tree, a "make clean"
4303 is a good thing. If it isn't successfull, don't worry about it,
4304 it probably means the source directory is very clean.
4307 *) Make sure any ENGINE control commands make local copies of string
4308 pointers passed to them whenever necessary. Otherwise it is possible
4309 the caller may have overwritten (or deallocated) the original string
4310 data when a later ENGINE operation tries to use the stored values.
4311 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4313 *) Improve diagnostics in file reading and command-line digests.
4314 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4316 *) Add AES modes CFB and OFB to the object database. Correct an
4317 error in AES-CFB decryption.
4320 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4321 allows existing EVP_CIPHER_CTX structures to be reused after
4322 calling EVP_*Final(). This behaviour is used by encryption
4323 BIOs and some applications. This has the side effect that
4324 applications must explicitly clean up cipher contexts with
4325 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4328 *) Check the values of dna and dnb in bn_mul_recursive before calling
4329 bn_mul_comba (a non zero value means the a or b arrays do not contain
4330 n2 elements) and fallback to bn_mul_normal if either is not zero.
4333 *) Fix escaping of non-ASCII characters when using the -subj option
4334 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4337 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4338 form for "surname", serialNumber has no short form.
4339 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4340 therefore remove "mail" short name for "internet 7".
4341 The OID for unique identifiers in X509 certificates is
4342 x500UniqueIdentifier, not uniqueIdentifier.
4343 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4346 *) Add an "init" command to the ENGINE config module and auto initialize
4347 ENGINEs. Without any "init" command the ENGINE will be initialized
4348 after all ctrl commands have been executed on it. If init=1 the
4349 ENGINE is initailized at that point (ctrls before that point are run
4350 on the uninitialized ENGINE and after on the initialized one). If
4351 init=0 then the ENGINE will not be iniatialized at all.
4354 *) Fix the 'app_verify_callback' interface so that the user-defined
4355 argument is actually passed to the callback: In the
4356 SSL_CTX_set_cert_verify_callback() prototype, the callback
4357 declaration has been changed from
4360 int (*cb)(X509_STORE_CTX *,void *);
4361 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4362 i=s->ctx->app_verify_callback(&ctx)
4363 has been changed into
4364 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4366 To update applications using SSL_CTX_set_cert_verify_callback(),
4367 a dummy argument can be added to their callback functions.
4368 [D. K. Smetters <smetters@parc.xerox.com>]
4370 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4371 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4373 *) Add and OPENSSL_LOAD_CONF define which will cause
4374 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4375 This allows older applications to transparently support certain
4376 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4377 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4378 load the config file and OPENSSL_add_all_algorithms_conf() which will
4379 always load it have also been added.
4382 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4383 Adjust NIDs and EVP layer.
4384 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4386 *) Config modules support in openssl utility.
4388 Most commands now load modules from the config file,
4389 though in a few (such as version) this isn't done
4390 because it couldn't be used for anything.
4392 In the case of ca and req the config file used is
4393 the same as the utility itself: that is the -config
4394 command line option can be used to specify an
4398 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4399 use "openssl_conf" if filename is NULL use default openssl config file.
4402 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4403 config section name. Add a new flag to tolerate a missing config file
4404 and move code to CONF_modules_load_file().
4407 *) Support for crypto accelerator cards from Accelerated Encryption
4408 Processing, www.aep.ie. (Use engine 'aep')
4409 The support was copied from 0.9.6c [engine] and adapted/corrected
4410 to work with the new engine framework.
4411 [AEP Inc. and Richard Levitte]
4413 *) Support for SureWare crypto accelerator cards from Baltimore
4414 Technologies. (Use engine 'sureware')
4415 The support was copied from 0.9.6c [engine] and adapted
4416 to work with the new engine framework.
4419 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4420 make the newer ENGINE framework commands for the CHIL engine work.
4421 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4423 *) Make it possible to produce shared libraries on ReliantUNIX.
4424 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4426 *) Add the configuration target debug-linux-ppro.
4427 Make 'openssl rsa' use the general key loading routines
4428 implemented in apps.c, and make those routines able to
4429 handle the key format FORMAT_NETSCAPE and the variant
4431 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4433 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4434 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4436 *) Add -keyform to rsautl, and document -engine.
4437 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4439 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4440 BIO_R_NO_SUCH_FILE error code rather than the generic
4441 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4444 *) Add new functions
4446 ERR_peek_last_error_line
4447 ERR_peek_last_error_line_data.
4448 These are similar to
4451 ERR_peek_error_line_data,
4452 but report on the latest error recorded rather than the first one
4453 still in the error queue.
4454 [Ben Laurie, Bodo Moeller]
4456 *) default_algorithms option in ENGINE config module. This allows things
4458 default_algorithms = ALL
4459 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4462 *) Prelminary ENGINE config module.
4465 *) New experimental application configuration code.
4468 *) Change the AES code to follow the same name structure as all other
4469 symmetric ciphers, and behave the same way. Move everything to
4470 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4471 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4473 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4474 [Ben Laurie and Theo de Raadt]
4476 *) Add option to output public keys in req command.
4477 [Massimiliano Pala madwolf@openca.org]
4479 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4480 (up to about 10% better than before for P-192 and P-224).
4483 *) New functions/macros
4485 SSL_CTX_set_msg_callback(ctx, cb)
4486 SSL_CTX_set_msg_callback_arg(ctx, arg)
4487 SSL_set_msg_callback(ssl, cb)
4488 SSL_set_msg_callback_arg(ssl, arg)
4490 to request calling a callback function
4492 void cb(int write_p, int version, int content_type,
4493 const void *buf, size_t len, SSL *ssl, void *arg)
4495 whenever a protocol message has been completely received
4496 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4497 protocol version according to which the SSL library interprets
4498 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4499 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4500 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4501 specification (change_cipher_spec(20), alert(21), handshake(22)).
4502 'buf' and 'len' point to the actual message, 'ssl' to the
4503 SSL object, and 'arg' is the application-defined value set by
4504 SSL[_CTX]_set_msg_callback_arg().
4506 'openssl s_client' and 'openssl s_server' have new '-msg' options
4507 to enable a callback that displays all protocol messages.
4510 *) Change the shared library support so shared libraries are built as
4511 soon as the corresponding static library is finished, and thereby get
4512 openssl and the test programs linked against the shared library.
4513 This still only happens when the keyword "shard" has been given to
4514 the configuration scripts.
4516 NOTE: shared library support is still an experimental thing, and
4517 backward binary compatibility is still not guaranteed.
4518 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4520 *) Add support for Subject Information Access extension.
4521 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4523 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4524 additional bytes when new memory had to be allocated, not just
4525 when reusing an existing buffer.
4528 *) New command line and configuration option 'utf8' for the req command.
4529 This allows field values to be specified as UTF8 strings.
4532 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4533 runs for the former and machine-readable output for the latter.
4536 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4537 of the e-mail address in the DN (i.e., it will go into a certificate
4538 extension only). The new configuration file option 'email_in_dn = no'
4539 has the same effect.
4540 [Massimiliano Pala madwolf@openca.org]
4542 *) Change all functions with names starting with des_ to be starting
4543 with DES_ instead. Add wrappers that are compatible with libdes,
4544 but are named _ossl_old_des_*. Finally, add macros that map the
4545 des_* symbols to the corresponding _ossl_old_des_* if libdes
4546 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4547 desired, the des_* symbols will be mapped to DES_*, with one
4550 Since we provide two compatibility mappings, the user needs to
4551 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4552 compatibility is desired. The default (i.e., when that macro
4553 isn't defined) is OpenSSL 0.9.6c compatibility.
4555 There are also macros that enable and disable the support of old
4556 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4557 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4558 are defined, the default will apply: to support the old des routines.
4560 In either case, one must include openssl/des.h to get the correct
4561 definitions. Do not try to just include openssl/des_old.h, that
4564 NOTE: This is a major break of an old API into a new one. Software
4565 authors are encouraged to switch to the DES_ style functions. Some
4566 time in the future, des_old.h and the libdes compatibility functions
4567 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4568 default), and then completely removed.
4571 *) Test for certificates which contain unsupported critical extensions.
4572 If such a certificate is found during a verify operation it is
4573 rejected by default: this behaviour can be overridden by either
4574 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4575 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4576 X509_supported_extension() has also been added which returns 1 if a
4577 particular extension is supported.
4580 *) Modify the behaviour of EVP cipher functions in similar way to digests
4581 to retain compatibility with existing code.
4584 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4585 compatibility with existing code. In particular the 'ctx' parameter does
4586 not have to be to be initialized before the call to EVP_DigestInit() and
4587 it is tidied up after a call to EVP_DigestFinal(). New function
4588 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4589 EVP_MD_CTX_copy() changed to not require the destination to be
4590 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4591 requires the destination to be valid.
4593 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4594 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4597 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4598 so that complete 'Handshake' protocol structures are kept in memory
4599 instead of overwriting 'msg_type' and 'length' with 'body' data.
4602 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4603 [Massimo Santin via Richard Levitte]
4605 *) Major restructuring to the underlying ENGINE code. This includes
4606 reduction of linker bloat, separation of pure "ENGINE" manipulation
4607 (initialisation, etc) from functionality dealing with implementations
4608 of specific crypto iterfaces. This change also introduces integrated
4609 support for symmetric ciphers and digest implementations - so ENGINEs
4610 can now accelerate these by providing EVP_CIPHER and EVP_MD
4611 implementations of their own. This is detailed in crypto/engine/README
4612 as it couldn't be adequately described here. However, there are a few
4613 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4614 were changed in the original introduction of ENGINE code have now
4615 reverted back - the hooking from this code to ENGINE is now a good
4616 deal more passive and at run-time, operations deal directly with
4617 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4618 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4619 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4620 they were not being used by the framework as there is no concept of a
4621 BIGNUM_METHOD and they could not be generalised to the new
4622 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4623 ENGINE_cpy() has been removed as it cannot be consistently defined in
4627 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4630 *) Change mkdef.pl to sort symbols that get the same entry number,
4631 and make sure the automatically generated functions ERR_load_*
4632 become part of libeay.num as well.
4635 *) New function SSL_renegotiate_pending(). This returns true once
4636 renegotiation has been requested (either SSL_renegotiate() call
4637 or HelloRequest/ClientHello receveived from the peer) and becomes
4638 false once a handshake has been completed.
4639 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4640 sends a HelloRequest, but does not ensure that a handshake takes
4641 place. SSL_renegotiate_pending() is useful for checking if the
4642 client has followed the request.)
4645 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4646 By default, clients may request session resumption even during
4647 renegotiation (if session ID contexts permit); with this option,
4648 session resumption is possible only in the first handshake.
4650 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4651 more bits available for options that should not be part of
4652 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4655 *) Add some demos for certificate and certificate request creation.
4658 *) Make maximum certificate chain size accepted from the peer application
4659 settable (SSL*_get/set_max_cert_list()), as proposed by
4660 "Douglas E. Engert" <deengert@anl.gov>.
4663 *) Add support for shared libraries for Unixware-7
4664 (Boyd Lynn Gerber <gerberb@zenez.com>).
4667 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4668 be done prior to destruction. Use this to unload error strings from
4669 ENGINEs that load their own error strings. NB: This adds two new API
4670 functions to "get" and "set" this destroy handler in an ENGINE.
4673 *) Alter all existing ENGINE implementations (except "openssl" and
4674 "openbsd") to dynamically instantiate their own error strings. This
4675 makes them more flexible to be built both as statically-linked ENGINEs
4676 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4677 Also, add stub code to each that makes building them as self-contained
4678 shared-libraries easier (see README.ENGINE).
4681 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4682 implementations into applications that are completely implemented in
4683 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4684 commands that can be used to configure what shared-library to load and
4685 to control aspects of the way it is handled. Also, made an update to
4686 the README.ENGINE file that brings its information up-to-date and
4687 provides some information and instructions on the "dynamic" ENGINE
4688 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4691 *) Make it possible to unload ranges of ERR strings with a new
4692 "ERR_unload_strings" function.
4695 *) Add a copy() function to EVP_MD.
4698 *) Make EVP_MD routines take a context pointer instead of just the
4699 md_data void pointer.
4702 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4703 that the digest can only process a single chunk of data
4704 (typically because it is provided by a piece of
4705 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4706 is only going to provide a single chunk of data, and hence the
4707 framework needn't accumulate the data for oneshot drivers.
4710 *) As with "ERR", make it possible to replace the underlying "ex_data"
4711 functions. This change also alters the storage and management of global
4712 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4713 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4714 index counters. The API functions that use this state have been changed
4715 to take a "class_index" rather than pointers to the class's local STACK
4716 and counter, and there is now an API function to dynamically create new
4717 classes. This centralisation allows us to (a) plug a lot of the
4718 thread-safety problems that existed, and (b) makes it possible to clean
4719 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4720 such data would previously have always leaked in application code and
4721 workarounds were in place to make the memory debugging turn a blind eye
4722 to it. Application code that doesn't use this new function will still
4723 leak as before, but their memory debugging output will announce it now
4724 rather than letting it slide.
4726 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4727 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4728 has a return value to indicate success or failure.
4731 *) Make it possible to replace the underlying "ERR" functions such that the
4732 global state (2 LHASH tables and 2 locks) is only used by the "default"
4733 implementation. This change also adds two functions to "get" and "set"
4734 the implementation prior to it being automatically set the first time
4735 any other ERR function takes place. Ie. an application can call "get",
4736 pass the return value to a module it has just loaded, and that module
4737 can call its own "set" function using that value. This means the
4738 module's "ERR" operations will use (and modify) the error state in the
4739 application and not in its own statically linked copy of OpenSSL code.
4742 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4743 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4744 the operation, and provides a more encapsulated way for external code
4745 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4746 to use these functions rather than manually incrementing the counts.
4748 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4751 *) Add EVP test program.
4754 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4757 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4758 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4759 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4760 These allow a CRL to be built without having to access X509_CRL fields
4761 directly. Modify 'ca' application to use new functions.
4764 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4765 bug workarounds. Rollback attack detection is a security feature.
4766 The problem will only arise on OpenSSL servers when TLSv1 is not
4767 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4768 Software authors not wanting to support TLSv1 will have special reasons
4769 for their choice and can explicitly enable this option.
4770 [Bodo Moeller, Lutz Jaenicke]
4772 *) Rationalise EVP so it can be extended: don't include a union of
4773 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4774 (similar to those existing for EVP_CIPHER_CTX).
4779 EVP_MD_CTX_init(&md); /* new function call */
4780 EVP_DigestInit(&md, EVP_sha1());
4781 EVP_DigestUpdate(&md, in, len);
4782 EVP_DigestFinal(&md, out, NULL);
4783 EVP_MD_CTX_cleanup(&md); /* new function call */
4787 *) Make DES key schedule conform to the usual scheme, as well as
4788 correcting its structure. This means that calls to DES functions
4789 now have to pass a pointer to a des_key_schedule instead of a
4790 plain des_key_schedule (which was actually always a pointer
4793 des_key_schedule ks;
4795 des_set_key_checked(..., &ks);
4796 des_ncbc_encrypt(..., &ks, ...);
4798 (Note that a later change renames 'des_...' into 'DES_...'.)
4801 *) Initial reduction of linker bloat: the use of some functions, such as
4802 PEM causes large amounts of unused functions to be linked in due to
4803 poor organisation. For example pem_all.c contains every PEM function
4804 which has a knock on effect of linking in large amounts of (unused)
4805 ASN1 code. Grouping together similar functions and splitting unrelated
4806 functions prevents this.
4809 *) Cleanup of EVP macros.
4812 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4813 correct _ecb suffix.
4816 *) Add initial OCSP responder support to ocsp application. The
4817 revocation information is handled using the text based index
4818 use by the ca application. The responder can either handle
4819 requests generated internally, supplied in files (for example
4820 via a CGI script) or using an internal minimal server.
4823 *) Add configuration choices to get zlib compression for TLS.
4826 *) Changes to Kerberos SSL for RFC 2712 compliance:
4827 1. Implemented real KerberosWrapper, instead of just using
4828 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4829 2. Implemented optional authenticator field of KerberosWrapper.
4831 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4832 and authenticator structs; see crypto/krb5/.
4834 Generalized Kerberos calls to support multiple Kerberos libraries.
4835 [Vern Staats <staatsvr@asc.hpc.mil>,
4836 Jeffrey Altman <jaltman@columbia.edu>
4837 via Richard Levitte]
4839 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4840 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4841 values for each of the key sizes rather than having just
4842 parameters (and 'speed' generating keys each time).
4845 *) Speed up EVP routines.
4848 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4849 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4850 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4851 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4853 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4854 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4855 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4858 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4860 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4863 *) Added the OS2-EMX target.
4864 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4866 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4867 to support NCONF routines in extension code. New function CONF_set_nconf()
4868 to allow functions which take an NCONF to also handle the old LHASH
4869 structure: this means that the old CONF compatible routines can be
4870 retained (in particular wrt extensions) without having to duplicate the
4871 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4874 *) Enhance the general user interface with mechanisms for inner control
4875 and with possibilities to have yes/no kind of prompts.
4878 *) Change all calls to low level digest routines in the library and
4879 applications to use EVP. Add missing calls to HMAC_cleanup() and
4880 don't assume HMAC_CTX can be copied using memcpy().
4881 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4883 *) Add the possibility to control engines through control names but with
4884 arbitrary arguments instead of just a string.
4885 Change the key loaders to take a UI_METHOD instead of a callback
4886 function pointer. NOTE: this breaks binary compatibility with earlier
4887 versions of OpenSSL [engine].
4888 Adapt the nCipher code for these new conditions and add a card insertion
4892 *) Enhance the general user interface with mechanisms to better support
4893 dialog box interfaces, application-defined prompts, the possibility
4894 to use defaults (for example default passwords from somewhere else)
4895 and interrupts/cancellations.
4898 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4899 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4902 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4903 tidy up some unnecessarily weird code in 'sk_new()').
4904 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4906 *) Change the key loading routines for ENGINEs to use the same kind
4907 callback (pem_password_cb) as all other routines that need this
4911 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4912 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4913 than this minimum value is recommended.
4916 *) New random seeder for OpenVMS, using the system process statistics
4917 that are easily reachable.
4920 *) Windows apparently can't transparently handle global
4921 variables defined in DLLs. Initialisations such as:
4923 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4925 wont compile. This is used by the any applications that need to
4926 declare their own ASN1 modules. This was fixed by adding the option
4927 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4928 needed for static libraries under Win32.
4931 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4932 setting of purpose and trust fields. New X509_STORE trust and
4933 purpose functions and tidy up setting in other SSL functions.
4936 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4937 structure. These are inherited by X509_STORE_CTX when it is
4938 initialised. This allows various defaults to be set in the
4939 X509_STORE structure (such as flags for CRL checking and custom
4940 purpose or trust settings) for functions which only use X509_STORE_CTX
4941 internally such as S/MIME.
4943 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4944 trust settings if they are not set in X509_STORE. This allows X509_STORE
4945 purposes and trust (in S/MIME for example) to override any set by default.
4947 Add command line options for CRL checking to smime, s_client and s_server
4951 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4952 are set then the CRL is looked up in the X509_STORE structure and
4953 its validity and signature checked, then if the certificate is found
4954 in the CRL the verify fails with a revoked error.
4956 Various new CRL related callbacks added to X509_STORE_CTX structure.
4958 Command line options added to 'verify' application to support this.
4960 This needs some additional work, such as being able to handle multiple
4961 CRLs with different times, extension based lookup (rather than just
4962 by subject name) and ultimately more complete V2 CRL extension
4966 *) Add a general user interface API (crypto/ui/). This is designed
4967 to replace things like des_read_password and friends (backward
4968 compatibility functions using this new API are provided).
4969 The purpose is to remove prompting functions from the DES code
4970 section as well as provide for prompting through dialog boxes in
4971 a window system and the like.
4974 *) Add "ex_data" support to ENGINE so implementations can add state at a
4975 per-structure level rather than having to store it globally.
4978 *) Make it possible for ENGINE structures to be copied when retrieved by
4979 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4980 This causes the "original" ENGINE structure to act like a template,
4981 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4982 operational state can be localised to each ENGINE structure, despite the
4983 fact they all share the same "methods". New ENGINE structures returned in
4984 this case have no functional references and the return value is the single
4985 structural reference. This matches the single structural reference returned
4986 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4990 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4991 needs to match any other type at all we need to manually clear the
4995 *) Changes to the "openssl engine" utility to include;
4996 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4997 about an ENGINE's available control commands.
4998 - executing control commands from command line arguments using the
4999 '-pre' and '-post' switches. '-post' is only used if '-t' is
5000 specified and the ENGINE is successfully initialised. The syntax for
5001 the individual commands are colon-separated, for example;
5002 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
5005 *) New dynamic control command support for ENGINEs. ENGINEs can now
5006 declare their own commands (numbers), names (strings), descriptions,
5007 and input types for run-time discovery by calling applications. A
5008 subset of these commands are implicitly classed as "executable"
5009 depending on their input type, and only these can be invoked through
5010 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
5011 can be based on user input, config files, etc). The distinction is
5012 that "executable" commands cannot return anything other than a boolean
5013 result and can only support numeric or string input, whereas some
5014 discoverable commands may only be for direct use through
5015 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
5016 pointers, or other custom uses. The "executable" commands are to
5017 support parameterisations of ENGINE behaviour that can be
5018 unambiguously defined by ENGINEs and used consistently across any
5019 OpenSSL-based application. Commands have been added to all the
5020 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
5021 control over shared-library paths without source code alterations.
5024 *) Changed all ENGINE implementations to dynamically allocate their
5025 ENGINEs rather than declaring them statically. Apart from this being
5026 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
5027 this also allows the implementations to compile without using the
5028 internal engine_int.h header.
5031 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5032 'const' value. Any code that should be able to modify a RAND_METHOD
5033 should already have non-const pointers to it (ie. they should only
5034 modify their own ones).
5037 *) Made a variety of little tweaks to the ENGINE code.
5038 - "atalla" and "ubsec" string definitions were moved from header files
5039 to C code. "nuron" string definitions were placed in variables
5040 rather than hard-coded - allowing parameterisation of these values
5041 later on via ctrl() commands.
5042 - Removed unused "#if 0"'d code.
5043 - Fixed engine list iteration code so it uses ENGINE_free() to release
5044 structural references.
5045 - Constified the RAND_METHOD element of ENGINE structures.
5046 - Constified various get/set functions as appropriate and added
5047 missing functions (including a catch-all ENGINE_cpy that duplicates
5048 all ENGINE values onto a new ENGINE except reference counts/state).
5049 - Removed NULL parameter checks in get/set functions. Setting a method
5050 or function to NULL is a way of cancelling out a previously set
5051 value. Passing a NULL ENGINE parameter is just plain stupid anyway
5052 and doesn't justify the extra error symbols and code.
5053 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
5054 flags from engine_int.h to engine.h.
5055 - Changed prototypes for ENGINE handler functions (init(), finish(),
5056 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
5059 *) Implement binary inversion algorithm for BN_mod_inverse in addition
5060 to the algorithm using long division. The binary algorithm can be
5061 used only if the modulus is odd. On 32-bit systems, it is faster
5062 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
5063 roughly 5-15% for 256-bit moduli), so we use it only for moduli
5064 up to 450 bits. In 64-bit environments, the binary algorithm
5065 appears to be advantageous for much longer moduli; here we use it
5066 for moduli up to 2048 bits.
5069 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
5070 could not support the combine flag in choice fields.
5073 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
5074 extensions from a certificate request to the certificate.
5077 *) Allow multiple 'certopt' and 'nameopt' options to be separated
5078 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
5079 file: this allows the display of the certificate about to be
5080 signed to be customised, to allow certain fields to be included
5081 or excluded and extension details. The old system didn't display
5082 multicharacter strings properly, omitted fields not in the policy
5083 and couldn't display additional details such as extensions.
5086 *) Function EC_POINTs_mul for multiple scalar multiplication
5087 of an arbitrary number of elliptic curve points
5088 \sum scalars[i]*points[i],
5089 optionally including the generator defined for the EC_GROUP:
5090 scalar*generator + \sum scalars[i]*points[i].
5092 EC_POINT_mul is a simple wrapper function for the typical case
5093 that the point list has just one item (besides the optional
5097 *) First EC_METHODs for curves over GF(p):
5099 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
5100 operations and provides various method functions that can also
5101 operate with faster implementations of modular arithmetic.
5103 EC_GFp_mont_method() reuses most functions that are part of
5104 EC_GFp_simple_method, but uses Montgomery arithmetic.
5106 [Bodo Moeller; point addition and point doubling
5107 implementation directly derived from source code provided by
5108 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
5110 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
5111 crypto/ec/ec_lib.c):
5113 Curves are EC_GROUP objects (with an optional group generator)
5114 based on EC_METHODs that are built into the library.
5116 Points are EC_POINT objects based on EC_GROUP objects.
5118 Most of the framework would be able to handle curves over arbitrary
5119 finite fields, but as there are no obvious types for fields other
5120 than GF(p), some functions are limited to that for now.
5123 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
5124 that the file contains a complete HTTP response.
5127 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
5128 change the def and num file printf format specifier from "%-40sXXX"
5129 to "%-39s XXX". The latter will always guarantee a space after the
5130 field while the former will cause them to run together if the field
5131 is 40 of more characters long.
5134 *) Constify the cipher and digest 'method' functions and structures
5135 and modify related functions to take constant EVP_MD and EVP_CIPHER
5139 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
5140 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
5143 *) Modify EVP_Digest*() routines so they now return values. Although the
5144 internal software routines can never fail additional hardware versions
5148 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
5150 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
5151 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
5154 ERR_R_NESTED_ASN1_ERROR
5156 ERR_R_MISSING_ASN1_EOS
5157 were 4 .. 9, conflicting with
5158 ERR_LIB_RSA (= ERR_R_RSA_LIB)
5160 ERR_LIB_PEM (= ERR_R_PEM_LIB).
5161 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
5163 Add new error code 'ERR_R_INTERNAL_ERROR'.
5166 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
5170 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
5171 sets the subject name for a new request or supersedes the
5172 subject name in a given request. Formats that can be parsed are
5173 'CN=Some Name, OU=myOU, C=IT'
5175 'CN=Some Name/OU=myOU/C=IT'.
5177 Add options '-batch' and '-verbose' to 'openssl req'.
5178 [Massimiliano Pala <madwolf@hackmasters.net>]
5180 *) Introduce the possibility to access global variables through
5181 functions on platform were that's the best way to handle exporting
5182 global variables in shared libraries. To enable this functionality,
5183 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
5184 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
5185 is normally done by Configure or something similar).
5187 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
5188 in the source file (foo.c) like this:
5190 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
5191 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
5193 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
5194 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
5196 OPENSSL_DECLARE_GLOBAL(int,foo);
5197 #define foo OPENSSL_GLOBAL_REF(foo)
5198 OPENSSL_DECLARE_GLOBAL(double,bar);
5199 #define bar OPENSSL_GLOBAL_REF(bar)
5201 The #defines are very important, and therefore so is including the
5202 header file everywhere where the defined globals are used.
5204 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
5205 of ASN.1 items, but that structure is a bit different.
5207 The largest change is in util/mkdef.pl which has been enhanced with
5208 better and easier to understand logic to choose which symbols should
5209 go into the Windows .def files as well as a number of fixes and code
5210 cleanup (among others, algorithm keywords are now sorted
5211 lexicographically to avoid constant rewrites).
5214 *) In BN_div() keep a copy of the sign of 'num' before writing the
5215 result to 'rm' because if rm==num the value will be overwritten
5216 and produce the wrong result if 'num' is negative: this caused
5217 problems with BN_mod() and BN_nnmod().
5220 *) Function OCSP_request_verify(). This checks the signature on an
5221 OCSP request and verifies the signer certificate. The signer
5222 certificate is just checked for a generic purpose and OCSP request
5226 *) Add OCSP_check_validity() function to check the validity of OCSP
5227 responses. OCSP responses are prepared in real time and may only
5228 be a few seconds old. Simply checking that the current time lies
5229 between thisUpdate and nextUpdate max reject otherwise valid responses
5230 caused by either OCSP responder or client clock inaccuracy. Instead
5231 we allow thisUpdate and nextUpdate to fall within a certain period of
5232 the current time. The age of the response can also optionally be
5233 checked. Two new options -validity_period and -status_age added to
5237 *) If signature or public key algorithm is unrecognized print out its
5238 OID rather that just UNKNOWN.
5241 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5242 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5243 ID to be generated from the issuer certificate alone which can then be
5244 passed to OCSP_id_issuer_cmp().
5247 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5248 ASN1 modules to export functions returning ASN1_ITEM pointers
5249 instead of the ASN1_ITEM structures themselves. This adds several
5250 new macros which allow the underlying ASN1 function/structure to
5251 be accessed transparently. As a result code should not use ASN1_ITEM
5252 references directly (such as &X509_it) but instead use the relevant
5253 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5254 use of the new ASN1 code on platforms where exporting structures
5255 is problematical (for example in shared libraries) but exporting
5256 functions returning pointers to structures is not.
5259 *) Add support for overriding the generation of SSL/TLS session IDs.
5260 These callbacks can be registered either in an SSL_CTX or per SSL.
5261 The purpose of this is to allow applications to control, if they wish,
5262 the arbitrary values chosen for use as session IDs, particularly as it
5263 can be useful for session caching in multiple-server environments. A
5264 command-line switch for testing this (and any client code that wishes
5265 to use such a feature) has been added to "s_server".
5266 [Geoff Thorpe, Lutz Jaenicke]
5268 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5269 of the form '#if defined(...) || defined(...) || ...' and
5270 '#if !defined(...) && !defined(...) && ...'. This also avoids
5271 the growing number of special cases it was previously handling.
5274 *) Make all configuration macros available for application by making
5275 sure they are available in opensslconf.h, by giving them names starting
5276 with "OPENSSL_" to avoid conflicts with other packages and by making
5277 sure e_os2.h will cover all platform-specific cases together with
5279 Additionally, it is now possible to define configuration/platform-
5280 specific names (called "system identities"). In the C code, these
5281 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5282 macro with the name beginning with "OPENSSL_SYS_", which is determined
5283 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5287 *) New option -set_serial to 'req' and 'x509' this allows the serial
5288 number to use to be specified on the command line. Previously self
5289 signed certificates were hard coded with serial number 0 and the
5290 CA options of 'x509' had to use a serial number in a file which was
5294 *) New options to 'ca' utility to support V2 CRL entry extensions.
5295 Currently CRL reason, invalidity date and hold instruction are
5296 supported. Add new CRL extensions to V3 code and some new objects.
5299 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5300 disable standard block padding (aka PKCS#5 padding) in the EVP
5301 API, which was previously mandatory. This means that the data is
5302 not padded in any way and so the total length much be a multiple
5303 of the block size, otherwise an error occurs.
5306 *) Initial (incomplete) OCSP SSL support.
5309 *) New function OCSP_parse_url(). This splits up a URL into its host,
5310 port and path components: primarily to parse OCSP URLs. New -url
5311 option to ocsp utility.
5314 *) New nonce behavior. The return value of OCSP_check_nonce() now
5315 reflects the various checks performed. Applications can decide
5316 whether to tolerate certain situations such as an absent nonce
5317 in a response when one was present in a request: the ocsp application
5318 just prints out a warning. New function OCSP_add1_basic_nonce()
5319 this is to allow responders to include a nonce in a response even if
5320 the request is nonce-less.
5323 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5324 skipped when using openssl x509 multiple times on a single input file,
5325 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5328 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5329 set string type: to handle setting ASN1_TIME structures. Fix ca
5330 utility to correctly initialize revocation date of CRLs.
5333 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5334 the clients preferred ciphersuites and rather use its own preferences.
5335 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5336 Internet Explorer by ensuring unchanged hash method during stepup.
5337 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5340 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5341 to aes and add a new 'exist' option to print out symbols that don't
5345 *) Additional options to ocsp utility to allow flags to be set and
5346 additional certificates supplied.
5349 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5350 OCSP client a number of certificate to only verify the response
5354 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5355 handle the new API. Currently only ECB, CBC modes supported. Add new
5358 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5359 Encryption Standard (AES) Ciphersuites for Transport Layer
5360 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5361 not enabled by default and were not part of the "ALL" ciphersuite
5362 alias because they were not yet official; they could be
5363 explicitly requested by specifying the "AESdraft" ciphersuite
5364 group alias. In the final release of OpenSSL 0.9.7, the group
5365 alias is called "AES" and is part of "ALL".)
5366 [Ben Laurie, Steve Henson, Bodo Moeller]
5368 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5369 request to response.
5372 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5373 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5374 extract information from a certificate request. OCSP_response_create()
5375 creates a response and optionally adds a basic response structure.
5376 OCSP_basic_add1_status() adds a complete single response to a basic
5377 response and returns the OCSP_SINGLERESP structure just added (to allow
5378 extensions to be included for example). OCSP_basic_add1_cert() adds a
5379 certificate to a basic response and OCSP_basic_sign() signs a basic
5380 response with various flags. New helper functions ASN1_TIME_check()
5381 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5382 (converts ASN1_TIME to GeneralizedTime).
5385 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5386 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5387 structure from a certificate. X509_pubkey_digest() digests the public_key
5388 contents: this is used in various key identifiers.
5391 *) Make sk_sort() tolerate a NULL argument.
5392 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5394 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5395 passed by the function are trusted implicitly. If any of them signed the
5396 response then it is assumed to be valid and is not verified.
5399 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5400 to data. This was previously part of the PKCS7 ASN1 code. This
5401 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5402 [Steve Henson, reported by Kenneth R. Robinette
5403 <support@securenetterm.com>]
5405 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5406 routines: without these tracing memory leaks is very painful.
5407 Fix leaks in PKCS12 and PKCS7 routines.
5410 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5411 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5412 effectively meant GeneralizedTime would never be used. Now it
5413 is initialised to -1 but X509_time_adj() now has to check the value
5414 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5415 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5416 [Steve Henson, reported by Kenneth R. Robinette
5417 <support@securenetterm.com>]
5419 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5420 result in a zero length in the ASN1_INTEGER structure which was
5421 not consistent with the structure when d2i_ASN1_INTEGER() was used
5422 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5423 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5424 where it did not print out a minus for negative ASN1_INTEGER.
5427 *) Add summary printout to ocsp utility. The various functions which
5428 convert status values to strings have been renamed to:
5429 OCSP_response_status_str(), OCSP_cert_status_str() and
5430 OCSP_crl_reason_str() and are no longer static. New options
5431 to verify nonce values and to disable verification. OCSP response
5432 printout format cleaned up.
5435 *) Add additional OCSP certificate checks. These are those specified
5436 in RFC2560. This consists of two separate checks: the CA of the
5437 certificate being checked must either be the OCSP signer certificate
5438 or the issuer of the OCSP signer certificate. In the latter case the
5439 OCSP signer certificate must contain the OCSP signing extended key
5440 usage. This check is performed by attempting to match the OCSP
5441 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5442 in the OCSP_CERTID structures of the response.
5445 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5446 and related routines. This uses the standard OpenSSL certificate
5447 verify routines to perform initial checks (just CA validity) and
5448 to obtain the certificate chain. Then additional checks will be
5449 performed on the chain. Currently the root CA is checked to see
5450 if it is explicitly trusted for OCSP signing. This is used to set
5451 a root CA as a global signing root: that is any certificate that
5452 chains to that CA is an acceptable OCSP signing certificate.
5455 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5456 extensions from a separate configuration file.
5457 As when reading extensions from the main configuration file,
5458 the '-extensions ...' option may be used for specifying the
5460 [Massimiliano Pala <madwolf@comune.modena.it>]
5462 *) New OCSP utility. Allows OCSP requests to be generated or
5463 read. The request can be sent to a responder and the output
5464 parsed, outputed or printed in text form. Not complete yet:
5465 still needs to check the OCSP response validity.
5468 *) New subcommands for 'openssl ca':
5469 'openssl ca -status <serial>' prints the status of the cert with
5470 the given serial number (according to the index file).
5471 'openssl ca -updatedb' updates the expiry status of certificates
5473 [Massimiliano Pala <madwolf@comune.modena.it>]
5475 *) New '-newreq-nodes' command option to CA.pl. This is like
5476 '-newreq', but calls 'openssl req' with the '-nodes' option
5477 so that the resulting key is not encrypted.
5478 [Damien Miller <djm@mindrot.org>]
5480 *) New configuration for the GNU Hurd.
5481 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5483 *) Initial code to implement OCSP basic response verify. This
5484 is currently incomplete. Currently just finds the signer's
5485 certificate and verifies the signature on the response.
5488 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5489 value of OPENSSLDIR. This is available via the new '-d' option
5490 to 'openssl version', and is also included in 'openssl version -a'.
5493 *) Allowing defining memory allocation callbacks that will be given
5494 file name and line number information in additional arguments
5495 (a const char* and an int). The basic functionality remains, as
5496 well as the original possibility to just replace malloc(),
5497 realloc() and free() by functions that do not know about these
5498 additional arguments. To register and find out the current
5499 settings for extended allocation functions, the following
5500 functions are provided:
5502 CRYPTO_set_mem_ex_functions
5503 CRYPTO_set_locked_mem_ex_functions
5504 CRYPTO_get_mem_ex_functions
5505 CRYPTO_get_locked_mem_ex_functions
5507 These work the same way as CRYPTO_set_mem_functions and friends.
5508 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5509 extended allocation function is enabled.
5510 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5511 a conventional allocation function is enabled.
5512 [Richard Levitte, Bodo Moeller]
5514 *) Finish off removing the remaining LHASH function pointer casts.
5515 There should no longer be any prototype-casting required when using
5516 the LHASH abstraction, and any casts that remain are "bugs". See
5517 the callback types and macros at the head of lhash.h for details
5518 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5521 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5522 If /dev/[u]random devices are not available or do not return enough
5523 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5525 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5526 /etc/entropy will be queried once each in this sequence, quering stops
5527 when enough entropy was collected without querying more sockets.
5530 *) Change the Unix RAND_poll() variant to be able to poll several
5531 random devices, as specified by DEVRANDOM, until a sufficient amount
5532 of data has been collected. We spend at most 10 ms on each file
5533 (select timeout) and read in non-blocking mode. DEVRANDOM now
5534 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5535 (previously it was just the string "/dev/urandom"), so on typical
5536 platforms the 10 ms delay will never occur.
5537 Also separate out the Unix variant to its own file, rand_unix.c.
5538 For VMS, there's a currently-empty rand_vms.c.
5541 *) Move OCSP client related routines to ocsp_cl.c. These
5542 provide utility functions which an application needing
5543 to issue a request to an OCSP responder and analyse the
5544 response will typically need: as opposed to those which an
5545 OCSP responder itself would need which will be added later.
5547 OCSP_request_sign() signs an OCSP request with an API similar
5548 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5549 response. OCSP_response_get1_basic() extracts basic response
5550 from response. OCSP_resp_find_status(): finds and extracts status
5551 information from an OCSP_CERTID structure (which will be created
5552 when the request structure is built). These are built from lower
5553 level functions which work on OCSP_SINGLERESP structures but
5554 wont normally be used unless the application wishes to examine
5555 extensions in the OCSP response for example.
5557 Replace nonce routines with a pair of functions.
5558 OCSP_request_add1_nonce() adds a nonce value and optionally
5559 generates a random value. OCSP_check_nonce() checks the
5560 validity of the nonce in an OCSP response.
5563 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5564 This doesn't copy the supplied OCSP_CERTID and avoids the
5565 need to free up the newly created id. Change return type
5566 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5567 This can then be used to add extensions to the request.
5568 Deleted OCSP_request_new(), since most of its functionality
5569 is now in OCSP_REQUEST_new() (and the case insensitive name
5570 clash) apart from the ability to set the request name which
5571 will be added elsewhere.
5574 *) Update OCSP API. Remove obsolete extensions argument from
5575 various functions. Extensions are now handled using the new
5576 OCSP extension code. New simple OCSP HTTP function which
5577 can be used to send requests and parse the response.
5580 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5581 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5582 uses the special reorder version of SET OF to sort the attributes
5583 and reorder them to match the encoded order. This resolves a long
5584 standing problem: a verify on a PKCS7 structure just after signing
5585 it used to fail because the attribute order did not match the
5586 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5587 it uses the received order. This is necessary to tolerate some broken
5588 software that does not order SET OF. This is handled by encoding
5589 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5590 to produce the required SET OF.
5593 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5594 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5595 files to get correct declarations of the ASN.1 item variables.
5598 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5599 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5600 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5601 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5602 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5603 ASN1_ITEM and no wrapper functions.
5606 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5607 replace the old function pointer based I/O routines. Change most of
5608 the *_d2i_bio() and *_d2i_fp() functions to use these.
5611 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5612 lines, recognice more "algorithms" that can be deselected, and make
5613 it complain about algorithm deselection that isn't recognised.
5616 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5617 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5618 to use new functions. Add NO_ASN1_OLD which can be set to remove
5619 some old style ASN1 functions: this can be used to determine if old
5620 code will still work when these eventually go away.
5623 *) New extension functions for OCSP structures, these follow the
5624 same conventions as certificates and CRLs.
5627 *) New function X509V3_add1_i2d(). This automatically encodes and
5628 adds an extension. Its behaviour can be customised with various
5629 flags to append, replace or delete. Various wrappers added for
5630 certifcates and CRLs.
5633 *) Fix to avoid calling the underlying ASN1 print routine when
5634 an extension cannot be parsed. Correct a typo in the
5635 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5638 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5639 entries for variables.
5642 *) Add functionality to apps/openssl.c for detecting locking
5643 problems: As the program is single-threaded, all we have
5644 to do is register a locking callback using an array for
5645 storing which locks are currently held by the program.
5648 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5649 SSL_get_ex_data_X509_STORE_idx(), which is used in
5650 ssl_verify_cert_chain() and thus can be called at any time
5651 during TLS/SSL handshakes so that thread-safety is essential.
5652 Unfortunately, the ex_data design is not at all suited
5653 for multi-threaded use, so it probably should be abolished.
5656 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5657 [Broadcom, tweaked and integrated by Geoff Thorpe]
5659 *) Move common extension printing code to new function
5660 X509V3_print_extensions(). Reorganise OCSP print routines and
5661 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5664 *) New function X509_signature_print() to remove duplication in some
5668 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5669 set (this was treated exactly the same as SET OF previously). This
5670 is used to reorder the STACK representing the structure to match the
5671 encoding. This will be used to get round a problem where a PKCS7
5672 structure which was signed could not be verified because the STACK
5673 order did not reflect the encoded order.
5676 *) Reimplement the OCSP ASN1 module using the new code.
5679 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5680 for its ASN1 operations. The old style function pointers still exist
5681 for now but they will eventually go away.
5684 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5685 completely replaces the old ASN1 functionality with a table driven
5686 encoder and decoder which interprets an ASN1_ITEM structure describing
5687 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5688 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5689 has also been converted to the new form.
5692 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5693 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5694 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5695 for negative moduli.
5698 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5699 of not touching the result's sign bit.
5702 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5706 *) Changed the LHASH code to use prototypes for callbacks, and created
5707 macros to declare and implement thin (optionally static) functions
5708 that provide type-safety and avoid function pointer casting for the
5709 type-specific callbacks.
5712 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5714 [Veers Staats <staatsvr@asc.hpc.mil>,
5715 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5717 *) Reformat the FAQ so the different questions and answers can be divided
5718 in sections depending on the subject.
5721 *) Have the zlib compression code load ZLIB.DLL dynamically under
5725 *) New function BN_mod_sqrt for computing square roots modulo a prime
5726 (using the probabilistic Tonelli-Shanks algorithm unless
5727 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5728 be handled deterministically).
5729 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5731 *) Make BN_mod_inverse faster by explicitly handling small quotients
5732 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5733 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5736 *) New function BN_kronecker.
5739 *) Fix BN_gcd so that it works on negative inputs; the result is
5740 positive unless both parameters are zero.
5741 Previously something reasonably close to an infinite loop was
5742 possible because numbers could be growing instead of shrinking
5743 in the implementation of Euclid's algorithm.
5746 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5747 sign of the number in question.
5749 Fix BN_is_word(a,w) to work correctly for w == 0.
5751 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5752 because its test if the absolute value of 'a' equals 'w'.
5753 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5754 it exists mostly for use in the implementations of BN_is_zero(),
5755 BN_is_one(), and BN_is_word().
5758 *) New function BN_swap.
5761 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5762 the exponentiation functions are more likely to produce reasonable
5763 results on negative inputs.
5766 *) Change BN_mod_mul so that the result is always non-negative.
5767 Previously, it could be negative if one of the factors was negative;
5768 I don't think anyone really wanted that behaviour.
5771 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5772 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5773 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5774 and add new functions:
5783 BN_mod_lshift1_quick
5787 These functions always generate non-negative results.
5789 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5790 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5792 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5793 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5794 be reduced modulo m.
5795 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5798 The following entry accidentily appeared in the CHANGES file
5799 distributed with OpenSSL 0.9.7. The modifications described in
5800 it do *not* apply to OpenSSL 0.9.7.
5802 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5803 was actually never needed) and in BN_mul(). The removal in BN_mul()
5804 required a small change in bn_mul_part_recursive() and the addition
5805 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5806 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5807 bn_sub_words() and bn_add_words() except they take arrays with
5812 *) In 'openssl passwd', verify passwords read from the terminal
5813 unless the '-salt' option is used (which usually means that
5814 verification would just waste user's time since the resulting
5815 hash is going to be compared with some given password hash)
5816 or the new '-noverify' option is used.
5818 This is an incompatible change, but it does not affect
5819 non-interactive use of 'openssl passwd' (passwords on the command
5820 line, '-stdin' option, '-in ...' option) and thus should not
5824 *) Remove all references to RSAref, since there's no more need for it.
5827 *) Make DSO load along a path given through an environment variable
5828 (SHLIB_PATH) with shl_load().
5831 *) Constify the ENGINE code as a result of BIGNUM constification.
5832 Also constify the RSA code and most things related to it. In a
5833 few places, most notable in the depth of the ASN.1 code, ugly
5834 casts back to non-const were required (to be solved at a later
5838 *) Make it so the openssl application has all engines loaded by default.
5841 *) Constify the BIGNUM routines a little more.
5844 *) Add the following functions:
5846 ENGINE_load_cswift()
5848 ENGINE_load_atalla()
5850 ENGINE_load_builtin_engines()
5852 That way, an application can itself choose if external engines that
5853 are built-in in OpenSSL shall ever be used or not. The benefit is
5854 that applications won't have to be linked with libdl or other dso
5855 libraries unless it's really needed.
5857 Changed 'openssl engine' to load all engines on demand.
5858 Changed the engine header files to avoid the duplication of some
5859 declarations (they differed!).
5862 *) 'openssl engine' can now list capabilities.
5865 *) Better error reporting in 'openssl engine'.
5868 *) Never call load_dh_param(NULL) in s_server.
5871 *) Add engine application. It can currently list engines by name and
5872 identity, and test if they are actually available.
5875 *) Improve RPM specification file by forcing symbolic linking and making
5876 sure the installed documentation is also owned by root.root.
5877 [Damien Miller <djm@mindrot.org>]
5879 *) Give the OpenSSL applications more possibilities to make use of
5880 keys (public as well as private) handled by engines.
5883 *) Add OCSP code that comes from CertCo.
5886 *) Add VMS support for the Rijndael code.
5889 *) Added untested support for Nuron crypto accelerator.
5892 *) Add support for external cryptographic devices. This code was
5893 previously distributed separately as the "engine" branch.
5894 [Geoff Thorpe, Richard Levitte]
5896 *) Rework the filename-translation in the DSO code. It is now possible to
5897 have far greater control over how a "name" is turned into a filename
5898 depending on the operating environment and any oddities about the
5899 different shared library filenames on each system.
5902 *) Support threads on FreeBSD-elf in Configure.
5905 *) Fix for SHA1 assembly problem with MASM: it produces
5906 warnings about corrupt line number information when assembling
5907 with debugging information. This is caused by the overlapping
5909 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5912 NCONF_get_number() has no error checking at all. As a replacement,
5913 NCONF_get_number_e() is defined (_e for "error checking") and is
5914 promoted strongly. The old NCONF_get_number is kept around for
5915 binary backward compatibility.
5916 Make it possible for methods to load from something other than a BIO,
5917 by providing a function pointer that is given a name instead of a BIO.
5918 For example, this could be used to load configuration data from an
5922 *) Fix for non blocking accept BIOs. Added new I/O special reason
5923 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5924 with non blocking I/O was not possible because no retry code was
5925 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5929 *) Added the beginnings of Rijndael support.
5932 *) Fix for bug in DirectoryString mask setting. Add support for
5933 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5934 to allow certificate printing to more controllable, additional
5935 'certopt' option to 'x509' to allow new printing options to be
5939 *) Clean old EAY MD5 hack from e_os.h.
5942 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5944 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5945 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5946 [Joe Orton, Steve Henson]
5948 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5950 *) Fix additional bug revealed by the NISCC test suite:
5952 Stop bug triggering large recursion when presented with
5953 certain ASN.1 tags (CVE-2003-0851)
5956 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5958 *) Fix various bugs revealed by running the NISCC test suite:
5960 Stop out of bounds reads in the ASN1 code when presented with
5961 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5963 If verify callback ignores invalid public key errors don't try to check
5964 certificate signature with the NULL public key.
5968 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5969 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5973 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5974 extra data after the compression methods not only for TLS 1.0
5975 but also for SSL 3.0 (as required by the specification).
5976 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5978 *) Change X509_certificate_type() to mark the key as exported/exportable
5979 when it's 512 *bits* long, not 512 bytes.
5982 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5984 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5985 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5986 a protocol version number mismatch like a decryption error
5987 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5990 *) Turn on RSA blinding by default in the default implementation
5991 to avoid a timing attack. Applications that don't want it can call
5992 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5993 They would be ill-advised to do so in most cases.
5994 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5996 *) Change RSA blinding code so that it works when the PRNG is not
5997 seeded (in this case, the secret RSA exponent is abused as
5998 an unpredictable seed -- if it is not unpredictable, there
5999 is no point in blinding anyway). Make RSA blinding thread-safe
6000 by remembering the creator's thread ID in rsa->blinding and
6001 having all other threads use local one-time blinding factors
6002 (this requires more computation than sharing rsa->blinding, but
6003 avoids excessive locking; and if an RSA object is not shared
6004 between threads, blinding will still be very fast).
6007 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
6009 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
6010 via timing by performing a MAC computation even if incorrrect
6011 block cipher padding has been found. This is a countermeasure
6012 against active attacks where the attacker has to distinguish
6013 between bad padding and a MAC verification error. (CVE-2003-0078)
6015 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
6016 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
6017 Martin Vuagnoux (EPFL, Ilion)]
6019 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
6021 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
6022 memory from it's contents. This is done with a counter that will
6023 place alternating values in each byte. This can be used to solve
6024 two issues: 1) the removal of calls to memset() by highly optimizing
6025 compilers, and 2) cleansing with other values than 0, since those can
6026 be read through on certain media, for example a swap space on disk.
6029 *) Bugfix: client side session caching did not work with external caching,
6030 because the session->cipher setting was not restored when reloading
6031 from the external cache. This problem was masked, when
6032 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
6033 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
6036 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
6037 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
6038 [Zeev Lieber <zeev-l@yahoo.com>]
6040 *) Undo an undocumented change introduced in 0.9.6e which caused
6041 repeated calls to OpenSSL_add_all_ciphers() and
6042 OpenSSL_add_all_digests() to be ignored, even after calling
6046 *) Change the default configuration reader to deal with last line not
6047 being properly terminated.
6050 *) Change X509_NAME_cmp() so it applies the special rules on handling
6051 DN values that are of type PrintableString, as well as RDNs of type
6052 emailAddress where the value has the type ia5String.
6053 [stefank@valicert.com via Richard Levitte]
6055 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
6056 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
6057 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
6058 the bitwise-OR of the two for use by the majority of applications
6059 wanting this behaviour, and update the docs. The documented
6060 behaviour and actual behaviour were inconsistent and had been
6061 changing anyway, so this is more a bug-fix than a behavioural
6063 [Geoff Thorpe, diagnosed by Nadav Har'El]
6065 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
6066 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
6069 *) Fix initialization code race conditions in
6070 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
6071 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
6072 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
6073 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
6074 ssl2_get_cipher_by_char(),
6075 ssl3_get_cipher_by_char().
6076 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
6078 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
6079 the cached sessions are flushed, as the remove_cb() might use ex_data
6080 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
6081 (see [openssl.org #212]).
6082 [Geoff Thorpe, Lutz Jaenicke]
6084 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
6085 length, instead of the encoding length to d2i_ASN1_OBJECT.
6088 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
6090 *) [In 0.9.6g-engine release:]
6091 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
6092 [Lynn Gazis <lgazis@rainbow.com>]
6094 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
6096 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
6097 and get fix the header length calculation.
6098 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
6099 Alon Kantor <alonk@checkpoint.com> (and others),
6102 *) Use proper error handling instead of 'assertions' in buffer
6103 overflow checks added in 0.9.6e. This prevents DoS (the
6104 assertions could call abort()).
6105 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
6107 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
6109 *) Add various sanity checks to asn1_get_length() to reject
6110 the ASN1 length bytes if they exceed sizeof(long), will appear
6111 negative or the content length exceeds the length of the
6113 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6115 *) Fix cipher selection routines: ciphers without encryption had no flags
6116 for the cipher strength set and where therefore not handled correctly
6117 by the selection routines (PR #130).
6120 *) Fix EVP_dsa_sha macro.
6124 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
6125 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
6126 that was added in OpenSSL 0.9.6d.
6128 As the countermeasure turned out to be incompatible with some
6129 broken SSL implementations, the new option is part of SSL_OP_ALL.
6130 SSL_OP_ALL is usually employed when compatibility with weird SSL
6131 implementations is desired (e.g. '-bugs' option to 's_client' and
6132 's_server'), so the new option is automatically set in many
6136 *) Changes in security patch:
6138 Changes marked "(CHATS)" were sponsored by the Defense Advanced
6139 Research Projects Agency (DARPA) and Air Force Research Laboratory,
6140 Air Force Materiel Command, USAF, under agreement number
6143 *) Add various sanity checks to asn1_get_length() to reject
6144 the ASN1 length bytes if they exceed sizeof(long), will appear
6145 negative or the content length exceeds the length of the
6146 supplied buffer. (CVE-2002-0659)
6147 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6149 *) Assertions for various potential buffer overflows, not known to
6151 [Ben Laurie (CHATS)]
6153 *) Various temporary buffers to hold ASCII versions of integers were
6154 too small for 64 bit platforms. (CVE-2002-0655)
6155 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
6157 *) Remote buffer overflow in SSL3 protocol - an attacker could
6158 supply an oversized session ID to a client. (CVE-2002-0656)
6159 [Ben Laurie (CHATS)]
6161 *) Remote buffer overflow in SSL2 protocol - an attacker could
6162 supply an oversized client master key. (CVE-2002-0656)
6163 [Ben Laurie (CHATS)]
6165 Changes between 0.9.6c and 0.9.6d [9 May 2002]
6167 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
6168 encoded as NULL) with id-dsa-with-sha1.
6169 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
6171 *) Check various X509_...() return values in apps/req.c.
6172 [Nils Larsch <nla@trustcenter.de>]
6174 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
6175 an end-of-file condition would erronously be flagged, when the CRLF
6176 was just at the end of a processed block. The bug was discovered when
6177 processing data through a buffering memory BIO handing the data to a
6178 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
6179 <ptsekov@syntrex.com> and Nedelcho Stanev.
6182 *) Implement a countermeasure against a vulnerability recently found
6183 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
6184 before application data chunks to avoid the use of known IVs
6185 with data potentially chosen by the attacker.
6188 *) Fix length checks in ssl3_get_client_hello().
6191 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
6192 to prevent ssl3_read_internal() from incorrectly assuming that
6193 ssl3_read_bytes() found application data while handshake
6194 processing was enabled when in fact s->s3->in_read_app_data was
6195 merely automatically cleared during the initial handshake.
6196 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
6198 *) Fix object definitions for Private and Enterprise: they were not
6199 recognized in their shortname (=lowercase) representation. Extend
6200 obj_dat.pl to issue an error when using undefined keywords instead
6201 of silently ignoring the problem (Svenning Sorensen
6202 <sss@sss.dnsalias.net>).
6205 *) Fix DH_generate_parameters() so that it works for 'non-standard'
6206 generators, i.e. generators other than 2 and 5. (Previously, the
6207 code did not properly initialise the 'add' and 'rem' values to
6208 BN_generate_prime().)
6210 In the new general case, we do not insist that 'generator' is
6211 actually a primitive root: This requirement is rather pointless;
6212 a generator of the order-q subgroup is just as good, if not
6216 *) Map new X509 verification errors to alerts. Discovered and submitted by
6217 Tom Wu <tom@arcot.com>.
6220 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
6221 returning non-zero before the data has been completely received
6222 when using non-blocking I/O.
6223 [Bodo Moeller; problem pointed out by John Hughes]
6225 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
6226 [Ben Laurie, Lutz Jaenicke]
6228 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
6229 Yoram Zahavi <YoramZ@gilian.com>).
6232 *) Add information about CygWin 1.3 and on, and preserve proper
6233 configuration for the versions before that.
6234 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6236 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6237 check whether we deal with a copy of a session and do not delete from
6238 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6239 <izhar@checkpoint.com>.
6242 *) Do not store session data into the internal session cache, if it
6243 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6244 flag is set). Proposed by Aslam <aslam@funk.com>.
6247 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6251 *) [In 0.9.6d-engine release:]
6252 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6253 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6255 *) Add the configuration target linux-s390x.
6256 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6258 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6259 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6260 variable as an indication that a ClientHello message has been
6261 received. As the flag value will be lost between multiple
6262 invocations of ssl3_accept when using non-blocking I/O, the
6263 function may not be aware that a handshake has actually taken
6264 place, thus preventing a new session from being added to the
6267 To avoid this problem, we now set s->new_session to 2 instead of
6268 using a local variable.
6269 [Lutz Jaenicke, Bodo Moeller]
6271 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6272 if the SSL_R_LENGTH_MISMATCH error is detected.
6273 [Geoff Thorpe, Bodo Moeller]
6275 *) New 'shared_ldflag' column in Configure platform table.
6278 *) Fix EVP_CIPHER_mode macro.
6279 ["Dan S. Camper" <dan@bti.net>]
6281 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6282 type, we must throw them away by setting rr->length to 0.
6283 [D P Chang <dpc@qualys.com>]
6285 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6287 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6288 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6289 worked incorrectly for those cases where range = 10..._2 and
6290 3*range is two bits longer than range.)
6293 *) Only add signing time to PKCS7 structures if it is not already
6297 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6298 OBJ_ld_ce should be OBJ_id_ce.
6299 Also some ip-pda OIDs in crypto/objects/objects.txt were
6300 incorrect (cf. RFC 3039).
6301 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6303 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6304 returns early because it has nothing to do.
6305 [Andy Schneider <andy.schneider@bjss.co.uk>]
6307 *) [In 0.9.6c-engine release:]
6308 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6309 [Andy Schneider <andy.schneider@bjss.co.uk>]
6311 *) [In 0.9.6c-engine release:]
6312 Add support for Cryptographic Appliance's keyserver technology.
6313 (Use engine 'keyclient')
6314 [Cryptographic Appliances and Geoff Thorpe]
6316 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6317 is called via tools/c89.sh because arguments have to be
6318 rearranged (all '-L' options must appear before the first object
6320 [Richard Shapiro <rshapiro@abinitio.com>]
6322 *) [In 0.9.6c-engine release:]
6323 Add support for Broadcom crypto accelerator cards, backported
6325 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6327 *) [In 0.9.6c-engine release:]
6328 Add support for SureWare crypto accelerator cards from
6329 Baltimore Technologies. (Use engine 'sureware')
6330 [Baltimore Technologies and Mark Cox]
6332 *) [In 0.9.6c-engine release:]
6333 Add support for crypto accelerator cards from Accelerated
6334 Encryption Processing, www.aep.ie. (Use engine 'aep')
6335 [AEP Inc. and Mark Cox]
6337 *) Add a configuration entry for gcc on UnixWare.
6338 [Gary Benson <gbenson@redhat.com>]
6340 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6341 messages are stored in a single piece (fixed-length part and
6342 variable-length part combined) and fix various bugs found on the way.
6345 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6346 instead. BIO_gethostbyname() does not know what timeouts are
6347 appropriate, so entries would stay in cache even when they have
6349 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6351 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6352 faced with a pathologically small ClientHello fragment that does
6353 not contain client_version: Instead of aborting with an error,
6354 simply choose the highest available protocol version (i.e.,
6355 TLS 1.0 unless it is disabled). In practice, ClientHello
6356 messages are never sent like this, but this change gives us
6357 strictly correct behaviour at least for TLS.
6360 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6361 never resets s->method to s->ctx->method when called from within
6362 one of the SSL handshake functions.
6363 [Bodo Moeller; problem pointed out by Niko Baric]
6365 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6366 (sent using the client's version number) if client_version is
6367 smaller than the protocol version in use. Also change
6368 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6369 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6370 the client will at least see that alert.
6373 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6377 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6378 client receives HelloRequest while in a handshake.
6379 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6381 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6382 should end in 'break', not 'goto end' which circuments various
6383 cleanups done in state SSL_ST_OK. But session related stuff
6384 must be disabled for SSL_ST_OK in the case that we just sent a
6387 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6388 before just sending a HelloRequest.
6389 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6391 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6392 reveal whether illegal block cipher padding was found or a MAC
6393 verification error occured. (Neither SSLerr() codes nor alerts
6394 are directly visible to potential attackers, but the information
6395 may leak via logfiles.)
6397 Similar changes are not required for the SSL 2.0 implementation
6398 because the number of padding bytes is sent in clear for SSL 2.0,
6399 and the extra bytes are just ignored. However ssl/s2_pkt.c
6400 failed to verify that the purported number of padding bytes is in
6404 *) Add OpenUNIX-8 support including shared libraries
6405 (Boyd Lynn Gerber <gerberb@zenez.com>).
6408 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6409 'wristwatch attack' using huge encoding parameters (cf.
6410 James H. Manger's CRYPTO 2001 paper). Note that the
6411 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6412 encoding parameters and hence was not vulnerable.
6415 *) BN_sqr() bug fix.
6416 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6418 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6419 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6420 followed by modular reduction.
6421 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6423 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6424 equivalent based on BN_pseudo_rand() instead of BN_rand().
6427 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6428 This function was broken, as the check for a new client hello message
6429 to handle SGC did not allow these large messages.
6430 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6433 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6436 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6437 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6440 *) Rework the configuration and shared library support for Tru64 Unix.
6441 The configuration part makes use of modern compiler features and
6442 still retains old compiler behavior for those that run older versions
6443 of the OS. The shared library support part includes a variant that
6444 uses the RPATH feature, and is available through the special
6445 configuration target "alpha-cc-rpath", which will never be selected
6447 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6449 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6450 with the same message size as in ssl3_get_certificate_request().
6451 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6452 messages might inadvertently be reject as too long.
6453 [Petr Lampa <lampa@fee.vutbr.cz>]
6455 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6458 *) Modified SSL library such that the verify_callback that has been set
6459 specificly for an SSL object with SSL_set_verify() is actually being
6460 used. Before the change, a verify_callback set with this function was
6461 ignored and the verify_callback() set in the SSL_CTX at the time of
6462 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6463 to allow the necessary settings.
6466 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6467 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6468 done automatically (in contradiction to the requirements of the C
6469 standard). This made problems when used from OpenSSH.
6472 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6473 dh->length and always used
6475 BN_rand_range(priv_key, dh->p).
6477 BN_rand_range() is not necessary for Diffie-Hellman, and this
6478 specific range makes Diffie-Hellman unnecessarily inefficient if
6479 dh->length (recommended exponent length) is much smaller than the
6480 length of dh->p. We could use BN_rand_range() if the order of
6481 the subgroup was stored in the DH structure, but we only have
6486 BN_rand(priv_key, l, ...)
6488 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6494 RSA_eay_public_encrypt
6495 RSA_eay_private_decrypt
6496 RSA_eay_private_encrypt (signing)
6497 RSA_eay_public_decrypt (signature verification)
6499 (default implementations for RSA_public_encrypt,
6500 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6501 always reject numbers >= n.
6504 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6505 to synchronize access to 'locking_thread'. This is necessary on
6506 systems where access to 'locking_thread' (an 'unsigned long'
6507 variable) is not atomic.
6510 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6511 *before* setting the 'crypto_lock_rand' flag. The previous code had
6512 a race condition if 0 is a valid thread ID.
6513 [Travis Vitek <vitek@roguewave.com>]
6515 *) Add support for shared libraries under Irix.
6516 [Albert Chin-A-Young <china@thewrittenword.com>]
6518 *) Add configuration option to build on Linux on both big-endian and
6520 [Ralf Baechle <ralf@uni-koblenz.de>]
6522 *) Add the possibility to create shared libraries on HP-UX.
6525 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6527 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6528 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6529 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6530 PRNG state recovery was possible based on the output of
6531 one PRNG request appropriately sized to gain knowledge on
6532 'md' followed by enough consecutive 1-byte PRNG requests
6533 to traverse all of 'state'.
6535 1. When updating 'md_local' (the current thread's copy of 'md')
6536 during PRNG output generation, hash all of the previous
6537 'md_local' value, not just the half used for PRNG output.
6539 2. Make the number of bytes from 'state' included into the hash
6540 independent from the number of PRNG bytes requested.
6542 The first measure alone would be sufficient to avoid
6543 Markku-Juhani's attack. (Actually it had never occurred
6544 to me that the half of 'md_local' used for chaining was the
6545 half from which PRNG output bytes were taken -- I had always
6546 assumed that the secret half would be used.) The second
6547 measure makes sure that additional data from 'state' is never
6548 mixed into 'md_local' in small portions; this heuristically
6549 further strengthens the PRNG.
6552 *) Fix crypto/bn/asm/mips3.s.
6555 *) When only the key is given to "enc", the IV is undefined. Print out
6556 an error message in this case.
6559 *) Handle special case when X509_NAME is empty in X509 printing routines.
6562 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6563 positive and less than q.
6566 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6567 used: it isn't thread safe and the add_lock_callback should handle
6569 [Paul Rose <Paul.Rose@bridge.com>]
6571 *) Verify that incoming data obeys the block size in
6572 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6576 [Ulf Möller, Bodo Möller]
6578 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6579 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6580 when fixing the server behaviour for backwards-compatible 'client
6581 hello' messages. (Note that the attack is impractical against
6582 SSL 3.0 and TLS 1.0 anyway because length and version checking
6583 means that the probability of guessing a valid ciphertext is
6584 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6587 Before 0.9.5, the countermeasure (hide the error by generating a
6588 random 'decryption result') did not work properly because
6589 ERR_clear_error() was missing, meaning that SSL_get_error() would
6590 detect the supposedly ignored error.
6592 Both problems are now fixed.
6595 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6596 (previously it was 1024).
6599 *) Fix for compatibility mode trust settings: ignore trust settings
6600 unless some valid trust or reject settings are present.
6603 *) Fix for blowfish EVP: its a variable length cipher.
6606 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6607 parameters in DSA public key structures and return an error in the
6608 DSA routines if parameters are absent.
6611 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6612 in the current directory if neither $RANDFILE nor $HOME was set.
6613 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6614 caused some confusion to Windows users who haven't defined $HOME.
6615 Thus RAND_file_name() is changed again: e_os.h can define a
6616 DEFAULT_HOME, which will be used if $HOME is not set.
6617 For Windows, we use "C:"; on other platforms, we still require
6618 environment variables.
6620 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6621 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6622 having multiple threads call RAND_poll() concurrently.
6625 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6626 combination of a flag and a thread ID variable.
6627 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6628 flag), *other* threads can enter ssleay_add_bytes without obeying
6629 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6630 that they do not hold after the first thread unsets add_do_not_lock).
6633 *) Change bctest again: '-x' expressions are not available in all
6637 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6639 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6640 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6642 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6643 the default extension for executables, if any. Also, make the perl
6644 scripts that use symlink() to test if it really exists and use "cp"
6645 if it doesn't. All this made OpenSSL compilable and installable in
6649 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6650 If SEQUENCE is length is indefinite just set c->slen to the total
6651 amount of data available.
6652 [Steve Henson, reported by shige@FreeBSD.org]
6653 [This change does not apply to 0.9.7.]
6655 *) Change bctest to avoid here-documents inside command substitution
6656 (workaround for FreeBSD /bin/sh bug).
6657 For compatibility with Ultrix, avoid shell functions (introduced
6658 in the bctest version that searches along $PATH).
6661 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6662 with des_encrypt() defined on some operating systems, like Solaris
6666 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6667 On the Importance of Eliminating Errors in Cryptographic
6668 Computations, J. Cryptology 14 (2001) 2, 101-119,
6669 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6672 *) MIPS assembler BIGNUM division bug fix.
6675 *) Disabled incorrect Alpha assembler code.
6678 *) Fix PKCS#7 decode routines so they correctly update the length
6679 after reading an EOC for the EXPLICIT tag.
6681 [This change does not apply to 0.9.7.]
6683 *) Fix bug in PKCS#12 key generation routines. This was triggered
6684 if a 3DES key was generated with a 0 initial byte. Include
6685 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6686 (but broken) behaviour.
6689 *) Enhance bctest to search for a working bc along $PATH and print
6691 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6693 *) Fix memory leaks in err.c: free err_data string if necessary;
6694 don't write to the wrong index in ERR_set_error_data.
6697 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6701 *) Replace rdtsc with _emit statements for VC++ version 5.
6702 [Jeremy Cooper <jeremy@baymoo.org>]
6704 *) Make it possible to reuse SSLv2 sessions.
6707 *) In copy_email() check for >= 0 as a return value for
6708 X509_NAME_get_index_by_NID() since 0 is a valid index.
6709 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6711 *) Avoid coredump with unsupported or invalid public keys by checking if
6712 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6713 PKCS7_verify() fails with non detached data.
6716 *) Don't use getenv in library functions when run as setuid/setgid.
6717 New function OPENSSL_issetugid().
6720 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6721 due to incorrect handling of multi-threading:
6723 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6725 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6727 3. Count how many times MemCheck_off() has been called so that
6728 nested use can be treated correctly. This also avoids
6729 inband-signalling in the previous code (which relied on the
6730 assumption that thread ID 0 is impossible).
6733 *) Add "-rand" option also to s_client and s_server.
6736 *) Fix CPU detection on Irix 6.x.
6737 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6738 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6740 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6743 [This change does not apply to 0.9.7.]
6745 *) Use the cached encoding of an X509_NAME structure rather than
6746 copying it. This is apparently the reason for the libsafe "errors"
6747 but the code is actually correct.
6750 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6751 Bleichenbacher's DSA attack.
6752 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6753 to be set and top=0 forces the highest bit to be set; top=-1 is new
6754 and leaves the highest bit random.
6755 [Ulf Moeller, Bodo Moeller]
6757 *) In the NCONF_...-based implementations for CONF_... queries
6758 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6759 a temporary CONF structure with the data component set to NULL
6760 (which gives segmentation faults in lh_retrieve).
6761 Instead, use NULL for the CONF pointer in CONF_get_string and
6762 CONF_get_number (which may use environment variables) and directly
6763 return NULL from CONF_get_section.
6766 *) Fix potential buffer overrun for EBCDIC.
6769 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6770 keyUsage if basicConstraints absent for a CA.
6773 *) Make SMIME_write_PKCS7() write mail header values with a format that
6774 is more generally accepted (no spaces before the semicolon), since
6775 some programs can't parse those values properly otherwise. Also make
6776 sure BIO's that break lines after each write do not create invalid
6780 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6781 macros previously used would not encode an empty SEQUENCE OF
6782 and break the signature.
6784 [This change does not apply to 0.9.7.]
6786 *) Zero the premaster secret after deriving the master secret in
6790 *) Add some EVP_add_digest_alias registrations (as found in
6791 OpenSSL_add_all_digests()) to SSL_library_init()
6792 aka OpenSSL_add_ssl_algorithms(). This provides improved
6793 compatibility with peers using X.509 certificates
6794 with unconventional AlgorithmIdentifier OIDs.
6797 *) Fix for Irix with NO_ASM.
6798 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6800 *) ./config script fixes.
6801 [Ulf Moeller, Richard Levitte]
6803 *) Fix 'openssl passwd -1'.
6806 *) Change PKCS12_key_gen_asc() so it can cope with non null
6807 terminated strings whose length is passed in the passlen
6808 parameter, for example from PEM callbacks. This was done
6809 by adding an extra length parameter to asc2uni().
6810 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6812 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6813 call failed, free the DSA structure.
6816 *) Fix to uni2asc() to cope with zero length Unicode strings.
6817 These are present in some PKCS#12 files.
6820 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6821 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6822 when writing a 32767 byte record.
6823 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6825 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6826 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6828 (RSA objects have a reference count access to which is protected
6829 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6830 so they are meant to be shared between threads.)
6831 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6832 "Reddie, Steven" <Steven.Reddie@ca.com>]
6834 *) Fix a deadlock in CRYPTO_mem_leaks().
6837 *) Use better test patterns in bntest.
6840 *) rand_win.c fix for Borland C.
6843 *) BN_rshift bugfix for n == 0.
6846 *) Add a 'bctest' script that checks for some known 'bc' bugs
6847 so that 'make test' does not abort just because 'bc' is broken.
6850 *) Store verify_result within SSL_SESSION also for client side to
6851 avoid potential security hole. (Re-used sessions on the client side
6852 always resulted in verify_result==X509_V_OK, not using the original
6853 result of the server certificate verification.)
6856 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6857 SSL3_RT_APPLICATION_DATA, return 0.
6858 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6862 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6863 releases, have been re-implemented by renaming the previous
6864 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6865 and ssl3_read_internal, respectively, and adding 'peek' parameters
6866 to them. The new ssl[23]_{read,peek} functions are calls to
6867 ssl[23]_read_internal with the 'peek' flag set appropriately.
6868 A 'peek' parameter has also been added to ssl3_read_bytes, which
6869 does the actual work for ssl3_read_internal.
6872 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6873 the method-specific "init()" handler. Also clean up ex_data after
6874 calling the method-specific "finish()" handler. Previously, this was
6875 happening the other way round.
6878 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6879 The previous value, 12, was not always sufficient for BN_mod_exp().
6882 *) Make sure that shared libraries get the internal name engine with
6883 the full version number and not just 0. This should mark the
6884 shared libraries as not backward compatible. Of course, this should
6885 be changed again when we can guarantee backward binary compatibility.
6888 *) Fix typo in get_cert_by_subject() in by_dir.c
6889 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6891 *) Rework the system to generate shared libraries:
6893 - Make note of the expected extension for the shared libraries and
6894 if there is a need for symbolic links from for example libcrypto.so.0
6895 to libcrypto.so.0.9.7. There is extended info in Configure for
6898 - Make as few rebuilds of the shared libraries as possible.
6900 - Still avoid linking the OpenSSL programs with the shared libraries.
6902 - When installing, install the shared libraries separately from the
6906 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6908 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6909 and not in SSL_clear because the latter is also used by the
6910 accept/connect functions; previously, the settings made by
6911 SSL_set_read_ahead would be lost during the handshake.
6912 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6914 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6915 Previously, it would create entries for disableed algorithms no
6919 *) Added several new manual pages for SSL_* function.
6922 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6924 *) In ssl23_get_client_hello, generate an error message when faced
6925 with an initial SSL 3.0/TLS record that is too small to contain the
6926 first two bytes of the ClientHello message, i.e. client_version.
6927 (Note that this is a pathologic case that probably has never happened
6928 in real life.) The previous approach was to use the version number
6929 from the record header as a substitute; but our protocol choice
6930 should not depend on that one because it is not authenticated
6931 by the Finished messages.
6934 *) More robust randomness gathering functions for Windows.
6935 [Jeffrey Altman <jaltman@columbia.edu>]
6937 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6938 not set then we don't setup the error code for issuer check errors
6939 to avoid possibly overwriting other errors which the callback does
6940 handle. If an application does set the flag then we assume it knows
6941 what it is doing and can handle the new informational codes
6945 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6946 a general "ANY" type, as such it should be able to decode anything
6947 including tagged types. However it didn't check the class so it would
6948 wrongly interpret tagged types in the same way as their universal
6949 counterpart and unknown types were just rejected. Changed so that the
6950 tagged and unknown types are handled in the same way as a SEQUENCE:
6951 that is the encoding is stored intact. There is also a new type
6952 "V_ASN1_OTHER" which is used when the class is not universal, in this
6953 case we have no idea what the actual type is so we just lump them all
6957 *) On VMS, stdout may very well lead to a file that is written to
6958 in a record-oriented fashion. That means that every write() will
6959 write a separate record, which will be read separately by the
6960 programs trying to read from it. This can be very confusing.
6962 The solution is to put a BIO filter in the way that will buffer
6963 text until a linefeed is reached, and then write everything a
6964 line at a time, so every record written will be an actual line,
6965 not chunks of lines and not (usually doesn't happen, but I've
6966 seen it once) several lines in one record. BIO_f_linebuffer() is
6969 Currently, it's a VMS-only method, because that's where it has
6970 been tested well enough.
6973 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6974 it can return incorrect results.
6975 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6976 but it was in 0.9.6-beta[12].)
6979 *) Disable the check for content being present when verifying detached
6980 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6981 include zero length content when signing messages.
6984 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6985 BIO_ctrl (for BIO pairs).
6988 *) Add DSO method for VMS.
6991 *) Bug fix: Montgomery multiplication could produce results with the
6995 *) Add RPM specification openssl.spec and modify it to build three
6996 packages. The default package contains applications, application
6997 documentation and run-time libraries. The devel package contains
6998 include files, static libraries and function documentation. The
6999 doc package contains the contents of the doc directory. The original
7000 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
7003 *) Add a large number of documentation files for many SSL routines.
7004 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7006 *) Add a configuration entry for Sony News 4.
7007 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
7009 *) Don't set the two most significant bits to one when generating a
7010 random number < q in the DSA library.
7013 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
7014 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
7015 the underlying transport is blocking) if a handshake took place.
7016 (The default behaviour is needed by applications such as s_client
7017 and s_server that use select() to determine when to use SSL_read;
7018 but for applications that know in advance when to expect data, it
7019 just makes things more complicated.)
7022 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
7026 *) Add a few more EBCDIC conditionals that make `req' and `x509'
7027 work better on such systems.
7028 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7030 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
7031 Update PKCS12_parse() so it copies the friendlyName and the
7032 keyid to the certificates aux info.
7035 *) Fix bug in PKCS7_verify() which caused an infinite loop
7036 if there was more than one signature.
7037 [Sven Uszpelkat <su@celocom.de>]
7039 *) Major change in util/mkdef.pl to include extra information
7040 about each symbol, as well as presentig variables as well
7041 as functions. This change means that there's n more need
7042 to rebuild the .num files when some algorithms are excluded.
7045 *) Allow the verify time to be set by an application,
7046 rather than always using the current time.
7049 *) Phase 2 verify code reorganisation. The certificate
7050 verify code now looks up an issuer certificate by a
7051 number of criteria: subject name, authority key id
7052 and key usage. It also verifies self signed certificates
7053 by the same criteria. The main comparison function is
7054 X509_check_issued() which performs these checks.
7056 Lot of changes were necessary in order to support this
7057 without completely rewriting the lookup code.
7059 Authority and subject key identifier are now cached.
7061 The LHASH 'certs' is X509_STORE has now been replaced
7062 by a STACK_OF(X509_OBJECT). This is mainly because an
7063 LHASH can't store or retrieve multiple objects with
7064 the same hash value.
7066 As a result various functions (which were all internal
7067 use only) have changed to handle the new X509_STORE
7068 structure. This will break anything that messed round
7069 with X509_STORE internally.
7071 The functions X509_STORE_add_cert() now checks for an
7072 exact match, rather than just subject name.
7074 The X509_STORE API doesn't directly support the retrieval
7075 of multiple certificates matching a given criteria, however
7076 this can be worked round by performing a lookup first
7077 (which will fill the cache with candidate certificates)
7078 and then examining the cache for matches. This is probably
7079 the best we can do without throwing out X509_LOOKUP
7080 entirely (maybe later...).
7082 The X509_VERIFY_CTX structure has been enhanced considerably.
7084 All certificate lookup operations now go via a get_issuer()
7085 callback. Although this currently uses an X509_STORE it
7086 can be replaced by custom lookups. This is a simple way
7087 to bypass the X509_STORE hackery necessary to make this
7088 work and makes it possible to use more efficient techniques
7089 in future. A very simple version which uses a simple
7090 STACK for its trusted certificate store is also provided
7091 using X509_STORE_CTX_trusted_stack().
7093 The verify_cb() and verify() callbacks now have equivalents
7094 in the X509_STORE_CTX structure.
7096 X509_STORE_CTX also has a 'flags' field which can be used
7097 to customise the verify behaviour.
7100 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
7101 excludes S/MIME capabilities.
7104 *) When a certificate request is read in keep a copy of the
7105 original encoding of the signed data and use it when outputing
7106 again. Signatures then use the original encoding rather than
7107 a decoded, encoded version which may cause problems if the
7108 request is improperly encoded.
7111 *) For consistency with other BIO_puts implementations, call
7112 buffer_write(b, ...) directly in buffer_puts instead of calling
7115 In BIO_puts, increment b->num_write as in BIO_write.
7116 [Peter.Sylvester@EdelWeb.fr]
7118 *) Fix BN_mul_word for the case where the word is 0. (We have to use
7119 BN_zero, we may not return a BIGNUM with an array consisting of
7123 *) Avoid calling abort() from within the library when problems are
7124 detected, except if preprocessor symbols have been defined
7125 (such as REF_CHECK, BN_DEBUG etc.).
7128 *) New openssl application 'rsautl'. This utility can be
7129 used for low level RSA operations. DER public key
7130 BIO/fp routines also added.
7133 *) New Configure entry and patches for compiling on QNX 4.
7134 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
7136 *) A demo state-machine implementation was sponsored by
7137 Nuron (http://www.nuron.com/) and is now available in
7138 demos/state_machine.
7141 *) New options added to the 'dgst' utility for signature
7142 generation and verification.
7145 *) Unrecognized PKCS#7 content types are now handled via a
7146 catch all ASN1_TYPE structure. This allows unsupported
7147 types to be stored as a "blob" and an application can
7148 encode and decode it manually.
7151 *) Fix various signed/unsigned issues to make a_strex.c
7153 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
7155 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
7156 length if passed a buffer. ASN1_INTEGER_to_BN failed
7157 if passed a NULL BN and its argument was negative.
7158 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
7160 *) Modification to PKCS#7 encoding routines to output definite
7161 length encoding. Since currently the whole structures are in
7162 memory there's not real point in using indefinite length
7163 constructed encoding. However if OpenSSL is compiled with
7164 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
7167 *) Added BIO_vprintf() and BIO_vsnprintf().
7170 *) Added more prefixes to parse for in the the strings written
7171 through a logging bio, to cover all the levels that are available
7172 through syslog. The prefixes are now:
7174 PANIC, EMERG, EMR => LOG_EMERG
7175 ALERT, ALR => LOG_ALERT
7176 CRIT, CRI => LOG_CRIT
7177 ERROR, ERR => LOG_ERR
7178 WARNING, WARN, WAR => LOG_WARNING
7179 NOTICE, NOTE, NOT => LOG_NOTICE
7180 INFO, INF => LOG_INFO
7181 DEBUG, DBG => LOG_DEBUG
7183 and as before, if none of those prefixes are present at the
7184 beginning of the string, LOG_ERR is chosen.
7186 On Win32, the LOG_* levels are mapped according to this:
7188 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
7189 LOG_WARNING => EVENTLOG_WARNING_TYPE
7190 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
7194 *) Made it possible to reconfigure with just the configuration
7195 argument "reconf" or "reconfigure". The command line arguments
7196 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
7197 and are retrieved from there when reconfiguring.
7201 [Assar Westerlund <assar@sics.se>, Richard Levitte]
7203 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
7206 *) The obj_dat.pl script was messing up the sorting of object
7207 names. The reason was that it compared the quoted version
7208 of strings as a result "OCSP" > "OCSP Signing" because
7209 " > SPACE. Changed script to store unquoted versions of
7210 names and add quotes on output. It was also omitting some
7211 names from the lookup table if they were given a default
7212 value (that is if SN is missing it is given the same
7213 value as LN and vice versa), these are now added on the
7214 grounds that if an object has a name we should be able to
7215 look it up. Finally added warning output when duplicate
7216 short or long names are found.
7219 *) Changes needed for Tandem NSK.
7220 [Scott Uroff <scott@xypro.com>]
7222 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
7223 RSA_padding_check_SSLv23(), special padding was never detected
7224 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
7225 version rollback attacks was not effective.
7227 In s23_clnt.c, don't use special rollback-attack detection padding
7228 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
7229 client; similarly, in s23_srvr.c, don't do the rollback check if
7230 SSL 2.0 is the only protocol enabled in the server.
7233 *) Make it possible to get hexdumps of unprintable data with 'openssl
7234 asn1parse'. By implication, the functions ASN1_parse_dump() and
7235 BIO_dump_indent() are added.
7238 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7239 these print out strings and name structures based on various
7240 flags including RFC2253 support and proper handling of
7241 multibyte characters. Added options to the 'x509' utility
7242 to allow the various flags to be set.
7245 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7246 Also change the functions X509_cmp_current_time() and
7247 X509_gmtime_adj() work with an ASN1_TIME structure,
7248 this will enable certificates using GeneralizedTime in validity
7249 dates to be checked.
7252 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7253 negative public key encodings) on by default,
7254 NO_NEG_PUBKEY_BUG can be set to disable it.
7257 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7258 content octets. An i2c_ASN1_OBJECT is unnecessary because
7259 the encoding can be trivially obtained from the structure.
7262 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7263 not read locks (CRYPTO_r_[un]lock).
7266 *) A first attempt at creating official support for shared
7267 libraries through configuration. I've kept it so the
7268 default is static libraries only, and the OpenSSL programs
7269 are always statically linked for now, but there are
7270 preparations for dynamic linking in place.
7271 This has been tested on Linux and Tru64.
7274 *) Randomness polling function for Win9x, as described in:
7275 Peter Gutmann, Software Generation of Practically Strong
7279 *) Fix so PRNG is seeded in req if using an already existing
7283 *) New options to smime application. -inform and -outform
7284 allow alternative formats for the S/MIME message including
7285 PEM and DER. The -content option allows the content to be
7286 specified separately. This should allow things like Netscape
7287 form signing output easier to verify.
7290 *) Fix the ASN1 encoding of tags using the 'long form'.
7293 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7294 STRING types. These convert content octets to and from the
7295 underlying type. The actual tag and length octets are
7296 already assumed to have been read in and checked. These
7297 are needed because all other string types have virtually
7298 identical handling apart from the tag. By having versions
7299 of the ASN1 functions that just operate on content octets
7300 IMPLICIT tagging can be handled properly. It also allows
7301 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7302 and ASN1_INTEGER are identical apart from the tag.
7305 *) Change the handling of OID objects as follows:
7307 - New object identifiers are inserted in objects.txt, following
7308 the syntax given in objects.README.
7309 - objects.pl is used to process obj_mac.num and create a new
7311 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7314 This is currently kind of a hack, and the perl code in objects.pl
7315 isn't very elegant, but it works as I intended. The simplest way
7316 to check that it worked correctly is to look in obj_dat.h and
7317 check the array nid_objs and make sure the objects haven't moved
7318 around (this is important!). Additions are OK, as well as
7319 consistent name changes.
7322 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7325 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7326 The given file adds to whatever has already been seeded into the
7327 random pool through the RANDFILE configuration file option or
7328 environment variable, or the default random state file.
7331 *) mkstack.pl now sorts each macro group into lexical order.
7332 Previously the output order depended on the order the files
7333 appeared in the directory, resulting in needless rewriting
7337 *) Patches to make OpenSSL compile under Win32 again. Mostly
7338 work arounds for the VC++ problem that it treats func() as
7339 func(void). Also stripped out the parts of mkdef.pl that
7340 added extra typesafe functions: these no longer exist.
7343 *) Reorganisation of the stack code. The macros are now all
7344 collected in safestack.h . Each macro is defined in terms of
7345 a "stack macro" of the form SKM_<name>(type, a, b). The
7346 DEBUG_SAFESTACK is now handled in terms of function casts,
7347 this has the advantage of retaining type safety without the
7348 use of additional functions. If DEBUG_SAFESTACK is not defined
7349 then the non typesafe macros are used instead. Also modified the
7350 mkstack.pl script to handle the new form. Needs testing to see
7351 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7352 the default if no major problems. Similar behaviour for ASN1_SET_OF
7353 and PKCS12_STACK_OF.
7356 *) When some versions of IIS use the 'NET' form of private key the
7357 key derivation algorithm is different. Normally MD5(password) is
7358 used as a 128 bit RC4 key. In the modified case
7359 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7360 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7361 as the old Netscape_RSA functions except they have an additional
7362 'sgckey' parameter which uses the modified algorithm. Also added
7363 an -sgckey command line option to the rsa utility. Thanks to
7364 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7365 algorithm to openssl-dev.
7368 *) The evp_local.h macros were using 'c.##kname' which resulted in
7369 invalid expansion on some systems (SCO 5.0.5 for example).
7370 Corrected to 'c.kname'.
7371 [Phillip Porch <root@theporch.com>]
7373 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7374 a STACK of email addresses from a certificate or request, these look
7375 in the subject name and the subject alternative name extensions and
7376 omit any duplicate addresses.
7379 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7380 This makes DSA verification about 2 % faster.
7383 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7384 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7385 plus overhead for 1024 bit moduli).
7386 This makes exponentiations about 0.5 % faster for 1024 bit
7387 exponents (as measured by "openssl speed rsa2048").
7390 *) Rename memory handling macros to avoid conflicts with other
7392 Malloc => OPENSSL_malloc
7393 Malloc_locked => OPENSSL_malloc_locked
7394 Realloc => OPENSSL_realloc
7395 Free => OPENSSL_free
7398 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7399 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7402 *) CygWin32 support.
7403 [John Jarvie <jjarvie@newsguy.com>]
7405 *) The type-safe stack code has been rejigged. It is now only compiled
7406 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7407 by default all type-specific stack functions are "#define"d back to
7408 standard stack functions. This results in more streamlined output
7409 but retains the type-safety checking possibilities of the original
7413 *) The STACK code has been cleaned up, and certain type declarations
7414 that didn't make a lot of sense have been brought in line. This has
7415 also involved a cleanup of sorts in safestack.h to more correctly
7416 map type-safe stack functions onto their plain stack counterparts.
7417 This work has also resulted in a variety of "const"ifications of
7418 lots of the code, especially "_cmp" operations which should normally
7419 be prototyped with "const" parameters anyway.
7422 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7423 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7424 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7425 where all of 'md' is used each time the PRNG is used, but 'state'
7426 is used only indexed by a cyclic counter. As entropy may not be
7427 well distributed from the beginning, 'md' is important as a
7428 chaining variable. However, the output function chains only half
7429 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7430 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7431 in all of 'state' being rewritten, with the new values depending
7432 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7435 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7436 the handshake is continued after ssl_verify_cert_chain();
7437 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7438 can lead to 'unexplainable' connection aborts later.
7439 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7441 *) Major EVP API cipher revision.
7442 Add hooks for extra EVP features. This allows various cipher
7443 parameters to be set in the EVP interface. Support added for variable
7444 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7445 setting of RC2 and RC5 parameters.
7447 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7450 Remove lots of duplicated code from the EVP library. For example *every*
7451 cipher init() function handles the 'iv' in the same way according to the
7452 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7453 for CFB and OFB modes they zero ctx->num.
7455 New functionality allows removal of S/MIME code RC2 hack.
7457 Most of the routines have the same form and so can be declared in terms
7460 By shifting this to the top level EVP_CipherInit() it can be removed from
7461 all individual ciphers. If the cipher wants to handle IVs or keys
7462 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7465 Change lots of functions like EVP_EncryptUpdate() to now return a
7466 value: although software versions of the algorithms cannot fail
7467 any installed hardware versions can.
7470 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7471 this option is set, tolerate broken clients that send the negotiated
7472 protocol version number instead of the requested protocol version
7476 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7477 i.e. non-zero for export ciphersuites, zero otherwise.
7478 Previous versions had this flag inverted, inconsistent with
7479 rsa_tmp_cb (..._TMP_RSA_CB).
7480 [Bodo Moeller; problem reported by Amit Chopra]
7482 *) Add missing DSA library text string. Work around for some IIS
7483 key files with invalid SEQUENCE encoding.
7486 *) Add a document (doc/standards.txt) that list all kinds of standards
7487 and so on that are implemented in OpenSSL.
7490 *) Enhance c_rehash script. Old version would mishandle certificates
7491 with the same subject name hash and wouldn't handle CRLs at all.
7492 Added -fingerprint option to crl utility, to support new c_rehash
7496 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7499 *) Fix for SSL server purpose checking. Server checking was
7500 rejecting certificates which had extended key usage present
7501 but no ssl client purpose.
7502 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7504 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7505 is a little unclear about how a blank password is handled.
7506 Since the password in encoded as a BMPString with terminating
7507 double NULL a zero length password would end up as just the
7508 double NULL. However no password at all is different and is
7509 handled differently in the PKCS#12 key generation code. NS
7510 treats a blank password as zero length. MSIE treats it as no
7511 password on export: but it will try both on import. We now do
7512 the same: PKCS12_parse() tries zero length and no password if
7513 the password is set to "" or NULL (NULL is now a valid password:
7514 it wasn't before) as does the pkcs12 application.
7517 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7518 perror when PEM_read_bio_X509_REQ fails, the error message must
7519 be obtained from the error queue.
7522 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7523 it in ERR_remove_state if appropriate, and change ERR_get_state
7524 accordingly to avoid race conditions (this is necessary because
7525 thread_hash is no longer constant once set).
7528 *) Bugfix for linux-elf makefile.one.
7531 *) RSA_get_default_method() will now cause a default
7532 RSA_METHOD to be chosen if one doesn't exist already.
7533 Previously this was only set during a call to RSA_new()
7534 or RSA_new_method(NULL) meaning it was possible for
7535 RSA_get_default_method() to return NULL.
7538 *) Added native name translation to the existing DSO code
7539 that will convert (if the flag to do so is set) filenames
7540 that are sufficiently small and have no path information
7541 into a canonical native form. Eg. "blah" converted to
7542 "libblah.so" or "blah.dll" etc.
7545 *) New function ERR_error_string_n(e, buf, len) which is like
7546 ERR_error_string(e, buf), but writes at most 'len' bytes
7547 including the 0 terminator. For ERR_error_string_n, 'buf'
7549 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7551 *) CONF library reworked to become more general. A new CONF
7552 configuration file reader "class" is implemented as well as a
7553 new functions (NCONF_*, for "New CONF") to handle it. The now
7554 old CONF_* functions are still there, but are reimplemented to
7555 work in terms of the new functions. Also, a set of functions
7556 to handle the internal storage of the configuration data is
7557 provided to make it easier to write new configuration file
7558 reader "classes" (I can definitely see something reading a
7559 configuration file in XML format, for example), called _CONF_*,
7560 or "the configuration storage API"...
7562 The new configuration file reading functions are:
7564 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7565 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7567 NCONF_default, NCONF_WIN32
7569 NCONF_dump_fp, NCONF_dump_bio
7571 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7572 NCONF_new creates a new CONF object. This works in the same way
7573 as other interfaces in OpenSSL, like the BIO interface.
7574 NCONF_dump_* dump the internal storage of the configuration file,
7575 which is useful for debugging. All other functions take the same
7576 arguments as the old CONF_* functions wth the exception of the
7577 first that must be a `CONF *' instead of a `LHASH *'.
7579 To make it easer to use the new classes with the old CONF_* functions,
7580 the function CONF_set_default_method is provided.
7583 *) Add '-tls1' option to 'openssl ciphers', which was already
7584 mentioned in the documentation but had not been implemented.
7585 (This option is not yet really useful because even the additional
7586 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7589 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7590 OpenSSL-based applications) load shared libraries and bind to
7591 them in a portable way.
7592 [Geoff Thorpe, with contributions from Richard Levitte]
7594 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7596 *) Make sure _lrotl and _lrotr are only used with MSVC.
7598 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7599 (the default implementation of RAND_status).
7601 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7602 to '-clrext' (= clear extensions), as intended and documented.
7603 [Bodo Moeller; inconsistency pointed out by Michael Attili
7606 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7607 was larger than the MD block size.
7608 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7610 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7611 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7612 using the passed key: if the passed key was a private key the result
7613 of X509_print(), for example, would be to print out all the private key
7617 *) des_quad_cksum() byte order bug fix.
7618 [Ulf Möller, using the problem description in krb4-0.9.7, where
7619 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7621 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7623 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7625 *) For easily testing in shell scripts whether some command
7626 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7627 returns with exit code 0 iff no command of the given name is available.
7628 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7629 the output goes to stdout and nothing is printed to stderr.
7630 Additional arguments are always ignored.
7632 Since for each cipher there is a command of the same name,
7633 the 'no-cipher' compilation switches can be tested this way.
7635 ('openssl no-XXX' is not able to detect pseudo-commands such
7636 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7639 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7642 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7643 is set; it will be thrown away anyway because each handshake creates
7645 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7646 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7647 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7648 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7651 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7652 'Q' and 'R' lose their special meanings (quit/renegotiate).
7653 This is part of what -quiet does; unlike -quiet, -ign_eof
7654 does not suppress any output.
7657 *) Add compatibility options to the purpose and trust code. The
7658 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7659 accepts a certificate or CA, this was the previous behaviour,
7660 with all the associated security issues.
7662 X509_TRUST_COMPAT is the old trust behaviour: only and
7663 automatically trust self signed roots in certificate store. A
7664 new trust setting X509_TRUST_DEFAULT is used to specify that
7665 a purpose has no associated trust setting and it should instead
7666 use the value in the default purpose.
7669 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7670 and fix a memory leak.
7673 *) In util/mkerr.pl (which implements 'make errors'), preserve
7674 reason strings from the previous version of the .c file, as
7675 the default to have only downcase letters (and digits) in
7676 automatically generated reasons codes is not always appropriate.
7679 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7680 using strerror. Previously, ERR_reason_error_string() returned
7681 library names as reason strings for SYSerr; but SYSerr is a special
7682 case where small numbers are errno values, not library numbers.
7685 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7686 converts DSA parameters into DH parameters. (When creating parameters,
7687 DSA_generate_parameters is used.)
7690 *) Include 'length' (recommended exponent length) in C code generated
7691 by 'openssl dhparam -C'.
7694 *) The second argument to set_label in perlasm was already being used
7695 so couldn't be used as a "file scope" flag. Moved to third argument
7699 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7700 instead of RAND_bytes for encryption IVs and salts.
7703 *) Include RAND_status() into RAND_METHOD instead of implementing
7704 it only for md_rand.c Otherwise replacing the PRNG by calling
7705 RAND_set_rand_method would be impossible.
7708 *) Don't let DSA_generate_key() enter an infinite loop if the random
7709 number generation fails.
7712 *) New 'rand' application for creating pseudo-random output.
7715 *) Added configuration support for Linux/IA64
7716 [Rolf Haberrecker <rolf@suse.de>]
7718 *) Assembler module support for Mingw32.
7721 *) Shared library support for HPUX (in shlib/).
7722 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7724 *) Shared library support for Solaris gcc.
7725 [Lutz Behnke <behnke@trustcenter.de>]
7727 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7729 *) PKCS7_encrypt() was adding text MIME headers twice because they
7730 were added manually and by SMIME_crlf_copy().
7733 *) In bntest.c don't call BN_rand with zero bits argument.
7734 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7736 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7737 case was implemented. This caused BN_div_recp() to fail occasionally.
7740 *) Add an optional second argument to the set_label() in the perl
7741 assembly language builder. If this argument exists and is set
7742 to 1 it signals that the assembler should use a symbol whose
7743 scope is the entire file, not just the current function. This
7744 is needed with MASM which uses the format label:: for this scope.
7745 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7747 *) Change the ASN1 types so they are typedefs by default. Before
7748 almost all types were #define'd to ASN1_STRING which was causing
7749 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7753 *) Change names of new functions to the new get1/get0 naming
7754 convention: After 'get1', the caller owns a reference count
7755 and has to call ..._free; 'get0' returns a pointer to some
7756 data structure without incrementing reference counters.
7757 (Some of the existing 'get' functions increment a reference
7758 counter, some don't.)
7759 Similarly, 'set1' and 'add1' functions increase reference
7760 counters or duplicate objects.
7763 *) Allow for the possibility of temp RSA key generation failure:
7764 the code used to assume it always worked and crashed on failure.
7767 *) Fix potential buffer overrun problem in BIO_printf().
7768 [Ulf Möller, using public domain code by Patrick Powell; problem
7769 pointed out by David Sacerdote <das33@cornell.edu>]
7771 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7772 RAND_egd() and RAND_status(). In the command line application,
7773 the EGD socket can be specified like a seed file using RANDFILE
7777 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7778 Some CAs (e.g. Verisign) distribute certificates in this form.
7781 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7782 list to exclude them. This means that no special compilation option
7783 is needed to use anonymous DH: it just needs to be included in the
7787 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7788 EVP_MD_type. The old functionality is available in a new macro called
7789 EVP_MD_md(). Change code that uses it and update docs.
7792 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7793 where the 'void *' argument is replaced by a function pointer argument.
7794 Previously 'void *' was abused to point to functions, which works on
7795 many platforms, but is not correct. As these functions are usually
7796 called by macros defined in OpenSSL header files, most source code
7797 should work without changes.
7800 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7801 sections with information on -D... compiler switches used for
7802 compiling the library so that applications can see them. To enable
7803 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7804 must be defined. E.g.,
7805 #define OPENSSL_ALGORITHM_DEFINES
7806 #include <openssl/opensslconf.h>
7807 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7808 [Richard Levitte, Ulf and Bodo Möller]
7810 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7814 *) Change the 'other' type in certificate aux info to a STACK_OF
7815 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7816 the required ASN1 format: arbitrary types determined by an OID.
7819 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7820 argument to 'req'. This is not because the function is newer or
7821 better than others it just uses the work 'NEW' in the certificate
7822 request header lines. Some software needs this.
7825 *) Reorganise password command line arguments: now passwords can be
7826 obtained from various sources. Delete the PEM_cb function and make
7827 it the default behaviour: i.e. if the callback is NULL and the
7828 usrdata argument is not NULL interpret it as a null terminated pass
7829 phrase. If usrdata and the callback are NULL then the pass phrase
7830 is prompted for as usual.
7833 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7834 the support is automatically enabled. The resulting binaries will
7835 autodetect the card and use it if present.
7836 [Ben Laurie and Compaq Inc.]
7838 *) Work around for Netscape hang bug. This sends certificate request
7839 and server done in one record. Since this is perfectly legal in the
7840 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7841 the bugs/SSLv3 entry for more info.
7844 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7847 *) Add -rand argument to smime and pkcs12 applications and read/write
7851 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7854 *) Add command line password options to the remaining applications.
7857 *) Bug fix for BN_div_recp() for numerators with an even number of
7861 *) More tests in bntest.c, and changed test_bn output.
7864 *) ./config recognizes MacOS X now.
7867 *) Bug fix for BN_div() when the first words of num and divsor are
7868 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7871 *) Add support for various broken PKCS#8 formats, and command line
7872 options to produce them.
7875 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7876 get temporary BIGNUMs from a BN_CTX.
7879 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7883 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7884 include a #define from the old name to the new. The original intent
7885 was that statically linked binaries could for example just call
7886 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7887 link with digests. This never worked becayse SSLeay_add_all_digests()
7888 and SSLeay_add_all_ciphers() were in the same source file so calling
7889 one would link with the other. They are now in separate source files.
7892 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7895 *) Use a less unusual form of the Miller-Rabin primality test (it used
7896 a binary algorithm for exponentiation integrated into the Miller-Rabin
7897 loop, our standard modexp algorithms are faster).
7900 *) Support for the EBCDIC character set completed.
7901 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7903 *) Source code cleanups: use const where appropriate, eliminate casts,
7904 use void * instead of char * in lhash.
7907 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7908 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7909 this the server could overwrite ephemeral keys that the client
7913 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7914 using 50 iterations of the Rabin-Miller test.
7916 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7917 iterations of the Rabin-Miller test as required by the appendix
7918 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7919 As BN_is_prime_fasttest includes trial division, DSA parameter
7920 generation becomes much faster.
7922 This implies a change for the callback functions in DSA_is_prime
7923 and DSA_generate_parameters: The callback function is called once
7924 for each positive witness in the Rabin-Miller test, not just
7925 occasionally in the inner loop; and the parameters to the
7926 callback function now provide an iteration count for the outer
7927 loop rather than for the current invocation of the inner loop.
7928 DSA_generate_parameters additionally can call the callback
7929 function with an 'iteration count' of -1, meaning that a
7930 candidate has passed the trial division test (when q is generated
7931 from an application-provided seed, trial division is skipped).
7934 *) New function BN_is_prime_fasttest that optionally does trial
7935 division before starting the Rabin-Miller test and has
7936 an additional BN_CTX * argument (whereas BN_is_prime always
7937 has to allocate at least one BN_CTX).
7938 'callback(1, -1, cb_arg)' is called when a number has passed the
7939 trial division stage.
7942 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7946 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7949 *) New function BN_pseudo_rand().
7952 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7953 bignum version of BN_from_montgomery() with the working code from
7954 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7958 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7959 made it impossible to use the same SSL_SESSION data structure in
7960 SSL2 clients in multiple threads.
7963 *) The return value of RAND_load_file() no longer counts bytes obtained
7964 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7965 to seed the PRNG (previously an explicit byte count was required).
7966 [Ulf Möller, Bodo Möller]
7968 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7969 used (char *) instead of (void *) and had casts all over the place.
7972 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7975 *) Retain source code compatibility for BN_prime_checks macro:
7976 BN_is_prime(..., BN_prime_checks, ...) now uses
7977 BN_prime_checks_for_size to determine the appropriate number of
7978 Rabin-Miller iterations.
7981 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7982 DH_CHECK_P_NOT_SAFE_PRIME.
7983 (Check if this is true? OpenPGP calls them "strong".)
7986 *) Merge the functionality of "dh" and "gendh" programs into a new program
7987 "dhparam". The old programs are retained for now but will handle DH keys
7988 (instead of parameters) in future.
7991 *) Make the ciphers, s_server and s_client programs check the return values
7992 when a new cipher list is set.
7995 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7996 ciphers. Before when the 56bit ciphers were enabled the sorting was
7999 The syntax for the cipher sorting has been extended to support sorting by
8000 cipher-strength (using the strength_bits hard coded in the tables).
8001 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
8003 Fix a bug in the cipher-command parser: when supplying a cipher command
8004 string with an "undefined" symbol (neither command nor alphanumeric
8005 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
8006 an error is flagged.
8008 Due to the strength-sorting extension, the code of the
8009 ssl_create_cipher_list() function was completely rearranged. I hope that
8010 the readability was also increased :-)
8011 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8013 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
8014 for the first serial number and places 2 in the serial number file. This
8015 avoids problems when the root CA is created with serial number zero and
8016 the first user certificate has the same issuer name and serial number
8020 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
8021 the new code. Add documentation for this stuff.
8024 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
8025 X509_*() to X509at_*() on the grounds that they don't handle X509
8026 structures and behave in an analagous way to the X509v3 functions:
8027 they shouldn't be called directly but wrapper functions should be used
8030 So we also now have some wrapper functions that call the X509at functions
8031 when passed certificate requests. (TO DO: similar things can be done with
8032 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
8033 things. Some of these need some d2i or i2d and print functionality
8034 because they handle more complex structures.)
8037 *) Add missing #ifndefs that caused missing symbols when building libssl
8038 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
8039 NO_RSA in ssl/s2*.c.
8040 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8042 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8043 has a return value which indicates the quality of the random data
8044 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
8045 error queue. New function RAND_pseudo_bytes() generates output that is
8046 guaranteed to be unique but not unpredictable. RAND_add is like
8047 RAND_seed, but takes an extra argument for an entropy estimate
8048 (RAND_seed always assumes full entropy).
8051 *) Do more iterations of Rabin-Miller probable prime test (specifically,
8052 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8053 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8054 in crypto/bn/bn_prime.c for the complete table). This guarantees a
8055 false-positive rate of at most 2^-80 for random input.
8058 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8061 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
8062 in the 0.9.5 release), this returns the chain
8063 from an X509_CTX structure with a dup of the stack and all
8064 the X509 reference counts upped: so the stack will exist
8065 after X509_CTX_cleanup() has been called. Modify pkcs12.c
8068 Also make SSL_SESSION_print() print out the verify return
8072 *) Add manpage for the pkcs12 command. Also change the default
8073 behaviour so MAC iteration counts are used unless the new
8074 -nomaciter option is used. This improves file security and
8075 only older versions of MSIE (4.0 for example) need it.
8078 *) Honor the no-xxx Configure options when creating .DEF files.
8081 *) Add PKCS#10 attributes to field table: challengePassword,
8082 unstructuredName and unstructuredAddress. These are taken from
8083 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
8084 international characters are used.
8086 More changes to X509_ATTRIBUTE code: allow the setting of types
8087 based on strings. Remove the 'loc' parameter when adding
8088 attributes because these will be a SET OF encoding which is sorted
8092 *) Initial changes to the 'req' utility to allow request generation
8093 automation. This will allow an application to just generate a template
8094 file containing all the field values and have req construct the
8097 Initial support for X509_ATTRIBUTE handling. Stacks of these are
8098 used all over the place including certificate requests and PKCS#7
8099 structures. They are currently handled manually where necessary with
8100 some primitive wrappers for PKCS#7. The new functions behave in a
8101 manner analogous to the X509 extension functions: they allow
8102 attributes to be looked up by NID and added.
8104 Later something similar to the X509V3 code would be desirable to
8105 automatically handle the encoding, decoding and printing of the
8106 more complex types. The string types like challengePassword can
8107 be handled by the string table functions.
8109 Also modified the multi byte string table handling. Now there is
8110 a 'global mask' which masks out certain types. The table itself
8111 can use the flag STABLE_NO_MASK to ignore the mask setting: this
8112 is useful when for example there is only one permissible type
8113 (as in countryName) and using the mask might result in no valid
8117 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
8118 SSL_get_peer_finished to allow applications to obtain the latest
8119 Finished messages sent to the peer or expected from the peer,
8120 respectively. (SSL_get_peer_finished is usually the Finished message
8121 actually received from the peer, otherwise the protocol will be aborted.)
8123 As the Finished message are message digests of the complete handshake
8124 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
8125 be used for external authentication procedures when the authentication
8126 provided by SSL/TLS is not desired or is not enough.
8129 *) Enhanced support for Alpha Linux is added. Now ./config checks if
8130 the host supports BWX extension and if Compaq C is present on the
8131 $PATH. Just exploiting of the BWX extension results in 20-30%
8132 performance kick for some algorithms, e.g. DES and RC4 to mention
8133 a couple. Compaq C in turn generates ~20% faster code for MD5 and
8137 *) Add support for MS "fast SGC". This is arguably a violation of the
8138 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
8139 weak crypto and after checking the certificate is SGC a second one
8140 with strong crypto. MS SGC stops the first handshake after receiving
8141 the server certificate message and sends a second client hello. Since
8142 a server will typically do all the time consuming operations before
8143 expecting any further messages from the client (server key exchange
8144 is the most expensive) there is little difference between the two.
8146 To get OpenSSL to support MS SGC we have to permit a second client
8147 hello message after we have sent server done. In addition we have to
8148 reset the MAC if we do get this second client hello.
8151 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
8152 if a DER encoded private key is RSA or DSA traditional format. Changed
8153 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
8154 format DER encoded private key. Newer code should use PKCS#8 format which
8155 has the key type encoded in the ASN1 structure. Added DER private key
8156 support to pkcs8 application.
8159 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
8160 ciphersuites has been selected (as required by the SSL 3/TLS 1
8161 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
8162 is set, we interpret this as a request to violate the specification
8163 (the worst that can happen is a handshake failure, and 'correct'
8164 behaviour would result in a handshake failure anyway).
8167 *) In SSL_CTX_add_session, take into account that there might be multiple
8168 SSL_SESSION structures with the same session ID (e.g. when two threads
8169 concurrently obtain them from an external cache).
8170 The internal cache can handle only one SSL_SESSION with a given ID,
8171 so if there's a conflict, we now throw out the old one to achieve
8175 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
8176 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
8177 some routines that use cipher OIDs: some ciphers do not have OIDs
8178 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
8182 *) Simplify the trust setting structure and code. Now we just have
8183 two sequences of OIDs for trusted and rejected settings. These will
8184 typically have values the same as the extended key usage extension
8185 and any application specific purposes.
8187 The trust checking code now has a default behaviour: it will just
8188 check for an object with the same NID as the passed id. Functions can
8189 be provided to override either the default behaviour or the behaviour
8190 for a given id. SSL client, server and email already have functions
8191 in place for compatibility: they check the NID and also return "trusted"
8192 if the certificate is self signed.
8195 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
8196 traditional format into an EVP_PKEY structure.
8199 *) Add a password callback function PEM_cb() which either prompts for
8200 a password if usr_data is NULL or otherwise assumes it is a null
8201 terminated password. Allow passwords to be passed on command line
8202 environment or config files in a few more utilities.
8205 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
8206 keys. Add some short names for PKCS#8 PBE algorithms and allow them
8207 to be specified on the command line for the pkcs8 and pkcs12 utilities.
8208 Update documentation.
8211 *) Support for ASN1 "NULL" type. This could be handled before by using
8212 ASN1_TYPE but there wasn't any function that would try to read a NULL
8213 and produce an error if it couldn't. For compatibility we also have
8214 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
8215 don't allocate anything because they don't need to.
8218 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
8220 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
8222 *) Rebuild of the memory allocation routines used by OpenSSL code and
8223 possibly others as well. The purpose is to make an interface that
8224 provide hooks so anyone can build a separate set of allocation and
8225 deallocation routines to be used by OpenSSL, for example memory
8226 pool implementations, or something else, which was previously hard
8227 since Malloc(), Realloc() and Free() were defined as macros having
8228 the values malloc, realloc and free, respectively (except for Win32
8229 compilations). The same is provided for memory debugging code.
8230 OpenSSL already comes with functionality to find memory leaks, but
8231 this gives people a chance to debug other memory problems.
8233 With these changes, a new set of functions and macros have appeared:
8235 CRYPTO_set_mem_debug_functions() [F]
8236 CRYPTO_get_mem_debug_functions() [F]
8237 CRYPTO_dbg_set_options() [F]
8238 CRYPTO_dbg_get_options() [F]
8239 CRYPTO_malloc_debug_init() [M]
8241 The memory debug functions are NULL by default, unless the library
8242 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8243 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8244 gives the standard debugging functions that come with OpenSSL) or
8245 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8246 provided by the library user) must be used. When the standard
8247 debugging functions are used, CRYPTO_dbg_set_options can be used to
8248 request additional information:
8249 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8250 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8252 Also, things like CRYPTO_set_mem_functions will always give the
8253 expected result (the new set of functions is used for allocation
8254 and deallocation) at all times, regardless of platform and compiler
8257 To finish it up, some functions that were never use in any other
8258 way than through macros have a new API and new semantic:
8261 CRYPTO_dbg_realloc()
8264 All macros of value have retained their old syntax.
8265 [Richard Levitte and Bodo Moeller]
8267 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8268 ordering of SMIMECapabilities wasn't in "strength order" and there
8269 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8273 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8274 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8275 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8277 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8278 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8279 functionality to handle multipart/signed properly) and a utility
8280 called 'smime' to call all this stuff. This is based on code I
8281 originally wrote for Celo who have kindly allowed it to be
8282 included in OpenSSL.
8285 *) Add variants des_set_key_checked and des_set_key_unchecked of
8286 des_set_key (aka des_key_sched). Global variable des_check_key
8287 decides which of these is called by des_set_key; this way
8288 des_check_key behaves as it always did, but applications and
8289 the library itself, which was buggy for des_check_key == 1,
8290 have a cleaner way to pick the version they need.
8293 *) New function PKCS12_newpass() which changes the password of a
8297 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8298 dynamic mix. In both cases the ids can be used as an index into the
8299 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8300 functions so they accept a list of the field values and the
8301 application doesn't need to directly manipulate the X509_TRUST
8305 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8309 *) Modify the way the V3 extension code looks up extensions. This now
8310 works in a similar way to the object code: we have some "standard"
8311 extensions in a static table which is searched with OBJ_bsearch()
8312 and the application can add dynamic ones if needed. The file
8313 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8314 updated whenever a new extension is added to the core code and kept
8315 in ext_nid order. There is a simple program 'tabtest.c' which checks
8316 this. New extensions are not added too often so this file can readily
8317 be maintained manually.
8319 There are two big advantages in doing things this way. The extensions
8320 can be looked up immediately and no longer need to be "added" using
8321 X509V3_add_standard_extensions(): this function now does nothing.
8322 [Side note: I get *lots* of email saying the extension code doesn't
8323 work because people forget to call this function]
8324 Also no dynamic allocation is done unless new extensions are added:
8325 so if we don't add custom extensions there is no need to call
8326 X509V3_EXT_cleanup().
8329 *) Modify enc utility's salting as follows: make salting the default. Add a
8330 magic header, so unsalted files fail gracefully instead of just decrypting
8331 to garbage. This is because not salting is a big security hole, so people
8332 should be discouraged from doing it.
8335 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8336 digest to be passed on the command line but it only used this
8337 parameter when signing a certificate. Modified so all relevant
8338 operations are affected by the digest parameter including the
8339 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8340 DSA key was used because it didn't fix the digest.
8343 *) Initial certificate chain verify code. Currently tests the untrusted
8344 certificates for consistency with the verify purpose (which is set
8345 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8347 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8348 this is because it will reject chains with invalid extensions whereas
8349 every previous version of OpenSSL and SSLeay made no checks at all.
8351 Trust code: checks the root CA for the relevant trust settings. Trust
8352 settings have an initial value consistent with the verify purpose: e.g.
8353 if the verify purpose is for SSL client use it expects the CA to be
8354 trusted for SSL client use. However the default value can be changed to
8355 permit custom trust settings: one example of this would be to only trust
8356 certificates from a specific "secure" set of CAs.
8358 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8359 which should be used for version portability: especially since the
8360 verify structure is likely to change more often now.
8362 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8363 to set them. If not set then assume SSL clients will verify SSL servers
8366 Two new options to the verify program: -untrusted allows a set of
8367 untrusted certificates to be passed in and -purpose which sets the
8368 intended purpose of the certificate. If a purpose is set then the
8369 new chain verify code is used to check extension consistency.
8372 *) Support for the authority information access extension.
8375 *) Modify RSA and DSA PEM read routines to transparently handle
8376 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8377 public keys in a format compatible with certificate
8378 SubjectPublicKeyInfo structures. Unfortunately there were already
8379 functions called *_PublicKey_* which used various odd formats so
8380 these are retained for compatibility: however the DSA variants were
8381 never in a public release so they have been deleted. Changed dsa/rsa
8382 utilities to handle the new format: note no releases ever handled public
8383 keys so we should be OK.
8385 The primary motivation for this change is to avoid the same fiasco
8386 that dogs private keys: there are several incompatible private key
8387 formats some of which are standard and some OpenSSL specific and
8388 require various evil hacks to allow partial transparent handling and
8389 even then it doesn't work with DER formats. Given the option anything
8390 other than PKCS#8 should be dumped: but the other formats have to
8391 stay in the name of compatibility.
8393 With public keys and the benefit of hindsight one standard format
8394 is used which works with EVP_PKEY, RSA or DSA structures: though
8395 it clearly returns an error if you try to read the wrong kind of key.
8397 Added a -pubkey option to the 'x509' utility to output the public key.
8398 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8399 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8400 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8401 that do the same as the EVP_PKEY_assign_*() except they up the
8402 reference count of the added key (they don't "swallow" the
8406 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8407 CRLs would fail if the file contained no certificates or no CRLs:
8408 added a new function to read in both types and return the number
8409 read: this means that if none are read it will be an error. The
8410 DER versions of the certificate and CRL reader would always fail
8411 because it isn't possible to mix certificates and CRLs in DER format
8412 without choking one or the other routine. Changed this to just read
8413 a certificate: this is the best we can do. Also modified the code
8414 in apps/verify.c to take notice of return codes: it was previously
8415 attempting to read in certificates from NULL pointers and ignoring
8416 any errors: this is one reason why the cert and CRL reader seemed
8417 to work. It doesn't check return codes from the default certificate
8418 routines: these may well fail if the certificates aren't installed.
8421 *) Code to support otherName option in GeneralName.
8424 *) First update to verify code. Change the verify utility
8425 so it warns if it is passed a self signed certificate:
8426 for consistency with the normal behaviour. X509_verify
8427 has been modified to it will now verify a self signed
8428 certificate if *exactly* the same certificate appears
8429 in the store: it was previously impossible to trust a
8430 single self signed certificate. This means that:
8431 openssl verify ss.pem
8432 now gives a warning about a self signed certificate but
8433 openssl verify -CAfile ss.pem ss.pem
8437 *) For servers, store verify_result in SSL_SESSION data structure
8438 (and add it to external session representation).
8439 This is needed when client certificate verifications fails,
8440 but an application-provided verification callback (set by
8441 SSL_CTX_set_cert_verify_callback) allows accepting the session
8442 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8443 but returns 1): When the session is reused, we have to set
8444 ssl->verify_result to the appropriate error code to avoid
8446 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8448 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8449 case in PKCS7_dataInit() where the signed PKCS7 structure
8450 didn't contain any existing data because it was being created.
8451 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8453 *) Add a salt to the key derivation routines in enc.c. This
8454 forms the first 8 bytes of the encrypted file. Also add a
8455 -S option to allow a salt to be input on the command line.
8458 *) New function X509_cmp(). Oddly enough there wasn't a function
8459 to compare two certificates. We do this by working out the SHA1
8460 hash and comparing that. X509_cmp() will be needed by the trust
8464 *) SSL_get1_session() is like SSL_get_session(), but increments
8465 the reference count in the SSL_SESSION returned.
8466 [Geoff Thorpe <geoff@eu.c2.net>]
8468 *) Fix for 'req': it was adding a null to request attributes.
8469 Also change the X509_LOOKUP and X509_INFO code to handle
8470 certificate auxiliary information.
8473 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8477 *) Add the possibility to add extra information to the memory leak
8478 detecting output, to form tracebacks, showing from where each
8479 allocation was originated: CRYPTO_push_info("constant string") adds
8480 the string plus current file name and line number to a per-thread
8481 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8482 is like calling CYRPTO_pop_info() until the stack is empty.
8483 Also updated memory leak detection code to be multi-thread-safe.
8486 *) Add options -text and -noout to pkcs7 utility and delete the
8487 encryption options which never did anything. Update docs.
8490 *) Add options to some of the utilities to allow the pass phrase
8491 to be included on either the command line (not recommended on
8492 OSes like Unix) or read from the environment. Update the
8493 manpages and fix a few bugs.
8496 *) Add a few manpages for some of the openssl commands.
8499 *) Fix the -revoke option in ca. It was freeing up memory twice,
8500 leaking and not finding already revoked certificates.
8503 *) Extensive changes to support certificate auxiliary information.
8504 This involves the use of X509_CERT_AUX structure and X509_AUX
8505 functions. An X509_AUX function such as PEM_read_X509_AUX()
8506 can still read in a certificate file in the usual way but it
8507 will also read in any additional "auxiliary information". By
8508 doing things this way a fair degree of compatibility can be
8509 retained: existing certificates can have this information added
8510 using the new 'x509' options.
8512 Current auxiliary information includes an "alias" and some trust
8513 settings. The trust settings will ultimately be used in enhanced
8514 certificate chain verification routines: currently a certificate
8515 can only be trusted if it is self signed and then it is trusted
8519 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8520 The problem was that one of the replacement routines had not been working
8521 since SSLeay releases. For now the offending routine has been replaced
8522 with non-optimised assembler. Even so, this now gives around 95%
8523 performance improvement for 1024 bit RSA signs.
8526 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8527 handling. Most clients have the effective key size in bits equal to
8528 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8529 A few however don't do this and instead use the size of the decrypted key
8530 to determine the RC2 key length and the AlgorithmIdentifier to determine
8531 the effective key length. In this case the effective key length can still
8532 be 40 bits but the key length can be 168 bits for example. This is fixed
8533 by manually forcing an RC2 key into the EVP_PKEY structure because the
8534 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8535 the key length and effective key length are equal.
8538 *) Add a bunch of functions that should simplify the creation of
8539 X509_NAME structures. Now you should be able to do:
8540 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8541 and have it automatically work out the correct field type and fill in
8542 the structures. The more adventurous can try:
8543 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8544 and it will (hopefully) work out the correct multibyte encoding.
8547 *) Change the 'req' utility to use the new field handling and multibyte
8548 copy routines. Before the DN field creation was handled in an ad hoc
8549 way in req, ca, and x509 which was rather broken and didn't support
8550 BMPStrings or UTF8Strings. Since some software doesn't implement
8551 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8552 using the dirstring_type option. See the new comment in the default
8553 openssl.cnf for more info.
8556 *) Make crypto/rand/md_rand.c more robust:
8557 - Assure unique random numbers after fork().
8558 - Make sure that concurrent threads access the global counter and
8559 md serializably so that we never lose entropy in them
8560 or use exactly the same state in multiple threads.
8561 Access to the large state is not always serializable because
8562 the additional locking could be a performance killer, and
8563 md should be large enough anyway.
8566 *) New file apps/app_rand.c with commonly needed functionality
8567 for handling the random seed file.
8569 Use the random seed file in some applications that previously did not:
8571 dsaparam -genkey (which also ignored its '-rand' option),
8574 x509 (when signing).
8575 Except on systems with /dev/urandom, it is crucial to have a random
8576 seed file at least for key creation, DSA signing, and for DH exchanges;
8577 for RSA signatures we could do without one.
8579 gendh and gendsa (unlike genrsa) used to read only the first byte
8580 of each file listed in the '-rand' option. The function as previously
8581 found in genrsa is now in app_rand.c and is used by all programs
8582 that support '-rand'.
8585 *) In RAND_write_file, use mode 0600 for creating files;
8586 don't just chmod when it may be too late.
8589 *) Report an error from X509_STORE_load_locations
8590 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8593 *) New function ASN1_mbstring_copy() this copies a string in either
8594 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8595 into an ASN1_STRING type. A mask of permissible types is passed
8596 and it chooses the "minimal" type to use or an error if not type
8600 *) Add function equivalents to the various macros in asn1.h. The old
8601 macros are retained with an M_ prefix. Code inside the library can
8602 use the M_ macros. External code (including the openssl utility)
8603 should *NOT* in order to be "shared library friendly".
8606 *) Add various functions that can check a certificate's extensions
8607 to see if it usable for various purposes such as SSL client,
8608 server or S/MIME and CAs of these types. This is currently
8609 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8610 verification. Also added a -purpose flag to x509 utility to
8611 print out all the purposes.
8614 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8618 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8619 for, obtain and decode and extension and obtain its critical flag.
8620 This allows all the necessary extension code to be handled in a
8621 single function call.
8624 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8625 platforms. See crypto/rc4/rc4_enc.c for further details.
8628 *) New -noout option to asn1parse. This causes no output to be produced
8629 its main use is when combined with -strparse and -out to extract data
8630 from a file (which may not be in ASN.1 format).
8633 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8634 when producing the local key id.
8635 [Richard Levitte <levitte@stacken.kth.se>]
8637 *) New option -dhparam in s_server. This allows a DH parameter file to be
8638 stated explicitly. If it is not stated then it tries the first server
8639 certificate file. The previous behaviour hard coded the filename
8643 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8644 a public key to be input or output. For example:
8645 openssl rsa -in key.pem -pubout -out pubkey.pem
8646 Also added necessary DSA public key functions to handle this.
8649 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8650 in the message. This was handled by allowing
8651 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8652 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8654 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8655 to the end of the strings whereas this didn't. This would cause problems
8656 if strings read with d2i_ASN1_bytes() were later modified.
8657 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8659 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8660 data and it contains EOF it will end up returning an error. This is
8661 caused by input 46 bytes long. The cause is due to the way base64
8662 BIOs find the start of base64 encoded data. They do this by trying a
8663 trial decode on each line until they find one that works. When they
8664 do a flag is set and it starts again knowing it can pass all the
8665 data directly through the decoder. Unfortunately it doesn't reset
8666 the context it uses. This means that if EOF is reached an attempt
8667 is made to pass two EOFs through the context and this causes the
8668 resulting error. This can also cause other problems as well. As is
8669 usual with these problems it takes *ages* to find and the fix is
8670 trivial: move one line.
8671 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8673 *) Ugly workaround to get s_client and s_server working under Windows. The
8674 old code wouldn't work because it needed to select() on sockets and the
8675 tty (for keypresses and to see if data could be written). Win32 only
8676 supports select() on sockets so we select() with a 1s timeout on the
8677 sockets and then see if any characters are waiting to be read, if none
8678 are present then we retry, we also assume we can always write data to
8679 the tty. This isn't nice because the code then blocks until we've
8680 received a complete line of data and it is effectively polling the
8681 keyboard at 1s intervals: however it's quite a bit better than not
8682 working at all :-) A dedicated Windows application might handle this
8683 with an event loop for example.
8686 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8687 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8688 will be called when RSA_sign() and RSA_verify() are used. This is useful
8689 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8690 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8691 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8692 This necessitated the support of an extra signature type NID_md5_sha1
8693 for SSL signatures and modifications to the SSL library to use it instead
8694 of calling RSA_public_decrypt() and RSA_private_encrypt().
8697 *) Add new -verify -CAfile and -CApath options to the crl program, these
8698 will lookup a CRL issuers certificate and verify the signature in a
8699 similar way to the verify program. Tidy up the crl program so it
8700 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8701 less strict. It will now permit CRL extensions even if it is not
8702 a V2 CRL: this will allow it to tolerate some broken CRLs.
8705 *) Initialize all non-automatic variables each time one of the openssl
8706 sub-programs is started (this is necessary as they may be started
8707 multiple times from the "OpenSSL>" prompt).
8708 [Lennart Bang, Bodo Moeller]
8710 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8711 removing all other RSA functionality (this is what NO_RSA does). This
8712 is so (for example) those in the US can disable those operations covered
8713 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8717 *) Non-copying interface to BIO pairs.
8718 (still largely untested)
8721 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8722 ASCII string. This was handled independently in various places before.
8725 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8726 UTF8 strings a character at a time.
8729 *) Use client_version from client hello to select the protocol
8730 (s23_srvr.c) and for RSA client key exchange verification
8731 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8734 *) Add various utility functions to handle SPKACs, these were previously
8735 handled by poking round in the structure internals. Added new function
8736 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8737 print, verify and generate SPKACs. Based on an original idea from
8738 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8741 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8744 *) Allow the config file extension section to be overwritten on the
8745 command line. Based on an original idea from Massimiliano Pala
8746 <madwolf@comune.modena.it>. The new option is called -extensions
8747 and can be applied to ca, req and x509. Also -reqexts to override
8748 the request extensions in req and -crlexts to override the crl extensions
8752 *) Add new feature to the SPKAC handling in ca. Now you can include
8753 the same field multiple times by preceding it by "XXXX." for example:
8756 this is the same syntax as used in the req config file.
8759 *) Allow certificate extensions to be added to certificate requests. These
8760 are specified in a 'req_extensions' option of the req section of the
8761 config file. They can be printed out with the -text option to req but
8762 are otherwise ignored at present.
8765 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8766 data read consists of only the final block it would not decrypted because
8767 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8768 A misplaced 'break' also meant the decrypted final block might not be
8769 copied until the next read.
8772 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8773 a few extra parameters to the DH structure: these will be useful if
8774 for example we want the value of 'q' or implement X9.42 DH.
8777 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8778 provides hooks that allow the default DSA functions or functions on a
8779 "per key" basis to be replaced. This allows hardware acceleration and
8780 hardware key storage to be handled without major modification to the
8781 library. Also added low level modexp hooks and CRYPTO_EX structure and
8782 associated functions.
8785 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8786 as "read only": it can't be written to and the buffer it points to will
8787 not be freed. Reading from a read only BIO is much more efficient than
8788 a normal memory BIO. This was added because there are several times when
8789 an area of memory needs to be read from a BIO. The previous method was
8790 to create a memory BIO and write the data to it, this results in two
8791 copies of the data and an O(n^2) reading algorithm. There is a new
8792 function BIO_new_mem_buf() which creates a read only memory BIO from
8793 an area of memory. Also modified the PKCS#7 routines to use read only
8797 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8798 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8799 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8800 but a retry condition occured while trying to read the rest.
8803 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8804 NID_pkcs7_encrypted by default: this was wrong since this should almost
8805 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8806 the encrypted data type: this is a more sensible place to put it and it
8807 allows the PKCS#12 code to be tidied up that duplicated this
8811 *) Changed obj_dat.pl script so it takes its input and output files on
8812 the command line. This should avoid shell escape redirection problems
8816 *) Initial support for certificate extension requests, these are included
8817 in things like Xenroll certificate requests. Included functions to allow
8818 extensions to be obtained and added.
8821 *) -crlf option to s_client and s_server for sending newlines as
8822 CRLF (as required by many protocols).
8825 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8827 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8828 [Ralf S. Engelschall]
8830 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8831 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8833 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8837 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8838 DH parameters/keys (q is lost during that conversion, but the resulting
8839 DH parameters contain its length).
8841 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8842 much faster than DH_generate_parameters (which creates parameters
8843 where p = 2*q + 1), and also the smaller q makes DH computations
8844 much more efficient (160-bit exponentiation instead of 1024-bit
8845 exponentiation); so this provides a convenient way to support DHE
8846 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8847 utter importance to use
8848 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8850 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8851 when such DH parameters are used, because otherwise small subgroup
8852 attacks may become possible!
8855 *) Avoid memory leak in i2d_DHparams.
8858 *) Allow the -k option to be used more than once in the enc program:
8859 this allows the same encrypted message to be read by multiple recipients.
8862 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8863 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8864 it will always use the numerical form of the OID, even if it has a short
8868 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8869 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8870 otherwise bn_mod_exp was called. In the case of hardware keys for example
8871 no private key components need be present and it might store extra data
8872 in the RSA structure, which cannot be accessed from bn_mod_exp.
8873 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8874 private key operations.
8877 *) Added support for SPARC Linux.
8880 *) pem_password_cb function type incompatibly changed from
8881 typedef int pem_password_cb(char *buf, int size, int rwflag);
8883 ....(char *buf, int size, int rwflag, void *userdata);
8884 so that applications can pass data to their callbacks:
8885 The PEM[_ASN1]_{read,write}... functions and macros now take an
8886 additional void * argument, which is just handed through whenever
8887 the password callback is called.
8888 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8890 New function SSL_CTX_set_default_passwd_cb_userdata.
8892 Compatibility note: As many C implementations push function arguments
8893 onto the stack in reverse order, the new library version is likely to
8894 interoperate with programs that have been compiled with the old
8895 pem_password_cb definition (PEM_whatever takes some data that
8896 happens to be on the stack as its last argument, and the callback
8897 just ignores this garbage); but there is no guarantee whatsoever that
8900 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8901 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8902 problems not only on Windows, but also on some Unix platforms.
8903 To avoid problematic command lines, these definitions are now in an
8904 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8905 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8908 *) MIPS III/IV assembler module is reimplemented.
8911 *) More DES library cleanups: remove references to srand/rand and
8912 delete an unused file.
8915 *) Add support for the the free Netwide assembler (NASM) under Win32,
8916 since not many people have MASM (ml) and it can be hard to obtain.
8917 This is currently experimental but it seems to work OK and pass all
8918 the tests. Check out INSTALL.W32 for info.
8921 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8922 without temporary keys kept an extra copy of the server key,
8923 and connections with temporary keys did not free everything in case
8927 *) New function RSA_check_key and new openssl rsa option -check
8928 for verifying the consistency of RSA keys.
8929 [Ulf Moeller, Bodo Moeller]
8931 *) Various changes to make Win32 compile work:
8932 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8933 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8934 comparison" warnings.
8935 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8938 *) Add a debugging option to PKCS#5 v2 key generation function: when
8939 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8940 derived keys are printed to stderr.
8943 *) Copy the flags in ASN1_STRING_dup().
8944 [Roman E. Pavlov <pre@mo.msk.ru>]
8946 *) The x509 application mishandled signing requests containing DSA
8947 keys when the signing key was also DSA and the parameters didn't match.
8949 It was supposed to omit the parameters when they matched the signing key:
8950 the verifying software was then supposed to automatically use the CA's
8951 parameters if they were absent from the end user certificate.
8953 Omitting parameters is no longer recommended. The test was also
8954 the wrong way round! This was probably due to unusual behaviour in
8955 EVP_cmp_parameters() which returns 1 if the parameters match.
8956 This meant that parameters were omitted when they *didn't* match and
8957 the certificate was useless. Certificates signed with 'ca' didn't have
8959 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8961 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8962 The interface is as follows:
8963 Applications can use
8964 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8965 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8966 "off" is now the default.
8967 The library internally uses
8968 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8969 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8970 to disable memory-checking temporarily.
8972 Some inconsistent states that previously were possible (and were
8973 even the default) are now avoided.
8975 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8976 with each memory chunk allocated; this is occasionally more helpful
8977 than just having a counter.
8979 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8981 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8985 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8986 which largely parallels "options", but is for changing API behaviour,
8987 whereas "options" are about protocol behaviour.
8988 Initial "mode" flags are:
8990 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8991 a single record has been written.
8992 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8993 retries use the same buffer location.
8994 (But all of the contents must be
8998 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
9001 *) Fix problems with no-hmac etc.
9002 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
9004 *) New functions RSA_get_default_method(), RSA_set_method() and
9005 RSA_get_method(). These allows replacement of RSA_METHODs without having
9006 to mess around with the internals of an RSA structure.
9009 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
9010 Also really enable memory leak checks in openssl.c and in some
9012 [Chad C. Mulligan, Bodo Moeller]
9014 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
9015 up the length of negative integers. This has now been simplified to just
9016 store the length when it is first determined and use it later, rather
9017 than trying to keep track of where data is copied and updating it to
9019 [Steve Henson, reported by Brien Wheeler
9020 <bwheeler@authentica-security.com>]
9022 *) Add a new function PKCS7_signatureVerify. This allows the verification
9023 of a PKCS#7 signature but with the signing certificate passed to the
9024 function itself. This contrasts with PKCS7_dataVerify which assumes the
9025 certificate is present in the PKCS#7 structure. This isn't always the
9026 case: certificates can be omitted from a PKCS#7 structure and be
9027 distributed by "out of band" means (such as a certificate database).
9030 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
9031 function prototypes in pem.h, also change util/mkdef.pl to add the
9032 necessary function names.
9035 *) mk1mf.pl (used by Windows builds) did not properly read the
9036 options set by Configure in the top level Makefile, and Configure
9037 was not even able to write more than one option correctly.
9038 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9041 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
9042 file to be loaded from a BIO or FILE pointer. The BIO version will
9043 for example allow memory BIOs to contain config info.
9046 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
9047 Whoever hopes to achieve shared-library compatibility across versions
9048 must use this, not the compile-time macro.
9049 (Exercise 0.9.4: Which is the minimum library version required by
9051 Note: All this applies only to multi-threaded programs, others don't
9055 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
9056 through a BIO pair triggered the default case, i.e.
9057 SSLerr(...,SSL_R_UNKNOWN_STATE).
9060 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
9061 can use the SSL library even if none of the specific BIOs is
9065 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
9066 for the encoded length.
9067 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
9069 *) Add initial documentation of the X509V3 functions.
9072 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
9073 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
9074 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
9075 secure PKCS#8 private key format with a high iteration count.
9078 *) Fix determination of Perl interpreter: A perl or perl5
9079 _directory_ in $PATH was also accepted as the interpreter.
9080 [Ralf S. Engelschall]
9082 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
9083 wrong with it but it was very old and did things like calling
9084 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
9088 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
9089 to use the new extension code.
9092 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
9093 with macros. This should make it easier to change their form, add extra
9094 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
9098 *) Add to configuration table a new entry that can specify an alternative
9099 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
9100 according to Mark Crispin <MRC@Panda.COM>.
9104 *) DES CBC did not update the IV. Weird.
9107 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
9108 Changing the behaviour of the former might break existing programs --
9109 where IV updating is needed, des_ncbc_encrypt can be used.
9112 *) When bntest is run from "make test" it drives bc to check its
9113 calculations, as well as internally checking them. If an internal check
9114 fails, it needs to cause bc to give a non-zero result or make test carries
9115 on without noticing the failure. Fixed.
9118 *) DES library cleanups.
9121 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
9122 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
9123 ciphers. NOTE: although the key derivation function has been verified
9124 against some published test vectors it has not been extensively tested
9125 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
9129 *) Instead of "mkdir -p", which is not fully portable, use new
9130 Perl script "util/mkdir-p.pl".
9133 *) Rewrite the way password based encryption (PBE) is handled. It used to
9134 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
9135 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
9136 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
9137 the 'parameter' field of the AlgorithmIdentifier is passed to the
9138 underlying key generation function so it must do its own ASN1 parsing.
9139 This has also changed the EVP_PBE_CipherInit() function which now has a
9140 'parameter' argument instead of literal salt and iteration count values
9141 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
9144 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
9145 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
9146 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
9147 KEY" because this clashed with PKCS#8 unencrypted string. Since this
9148 value was just used as a "magic string" and not used directly its
9149 value doesn't matter.
9152 *) Introduce some semblance of const correctness to BN. Shame C doesn't
9156 *) "linux-sparc64" configuration (ultrapenguin).
9157 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
9158 "linux-sparc" configuration.
9159 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
9161 *) config now generates no-xxx options for missing ciphers.
9164 *) Support the EBCDIC character set (work in progress).
9165 File ebcdic.c not yet included because it has a different license.
9166 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9168 *) Support BS2000/OSD-POSIX.
9169 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9171 *) Make callbacks for key generation use void * instead of char *.
9174 *) Make S/MIME samples compile (not yet tested).
9177 *) Additional typesafe stacks.
9180 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
9184 Changes between 0.9.3 and 0.9.3a [29 May 1999]
9186 *) New configuration variant "sco5-gcc".
9188 *) Updated some demos.
9189 [Sean O Riordain, Wade Scholine]
9191 *) Add missing BIO_free at exit of pkcs12 application.
9194 *) Fix memory leak in conf.c.
9197 *) Updates for Win32 to assembler version of MD5.
9200 *) Set #! path to perl in apps/der_chop to where we found it
9201 instead of using a fixed path.
9204 *) SHA library changes for irix64-mips4-cc.
9207 *) Improvements for VMS support.
9211 Changes between 0.9.2b and 0.9.3 [24 May 1999]
9213 *) Bignum library bug fix. IRIX 6 passes "make test" now!
9214 This also avoids the problems with SC4.2 and unpatched SC5.
9215 [Andy Polyakov <appro@fy.chalmers.se>]
9217 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
9218 These are required because of the typesafe stack would otherwise break
9219 existing code. If old code used a structure member which used to be STACK
9220 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
9221 sk_num or sk_value it would produce an error because the num, data members
9222 are not present in STACK_OF. Now it just produces a warning. sk_set
9223 replaces the old method of assigning a value to sk_value
9224 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
9225 that does this will no longer work (and should use sk_set instead) but
9226 this could be regarded as a "questionable" behaviour anyway.
9229 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
9230 correctly handle encrypted S/MIME data.
9233 *) Change type of various DES function arguments from des_cblock
9234 (which means, in function argument declarations, pointer to char)
9235 to des_cblock * (meaning pointer to array with 8 char elements),
9236 which allows the compiler to do more typechecking; it was like
9237 that back in SSLeay, but with lots of ugly casts.
9239 Introduce new type const_des_cblock.
9242 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9243 problems: find RecipientInfo structure that matches recipient certificate
9244 and initialise the ASN1 structures properly based on passed cipher.
9247 *) Belatedly make the BN tests actually check the results.
9250 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9251 to and from BNs: it was completely broken. New compilation option
9252 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9253 key elements as negative integers.
9256 *) Reorganize and speed up MD5.
9257 [Andy Polyakov <appro@fy.chalmers.se>]
9260 [Richard Levitte <richard@levitte.org>]
9262 *) New option -out to asn1parse to allow the parsed structure to be
9263 output to a file. This is most useful when combined with the -strparse
9264 option to examine the output of things like OCTET STRINGS.
9267 *) Make SSL library a little more fool-proof by not requiring any longer
9268 that SSL_set_{accept,connect}_state be called before
9269 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9270 in many applications because usually everything *appeared* to work as
9271 intended anyway -- now it really works as intended).
9274 *) Move openssl.cnf out of lib/.
9277 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9278 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9279 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9280 [Ralf S. Engelschall]
9282 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9283 handle PKCS#7 enveloped data properly.
9284 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9286 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9287 copying pointers. The cert_st handling is changed by this in
9288 various ways (and thus what used to be known as ctx->default_cert
9289 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9290 any longer when s->cert does not give us what we need).
9291 ssl_cert_instantiate becomes obsolete by this change.
9292 As soon as we've got the new code right (possibly it already is?),
9293 we have solved a couple of bugs of the earlier code where s->cert
9294 was used as if it could not have been shared with other SSL structures.
9296 Note that using the SSL API in certain dirty ways now will result
9297 in different behaviour than observed with earlier library versions:
9298 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9299 does not influence s as it used to.
9301 In order to clean up things more thoroughly, inside SSL_SESSION
9302 we don't use CERT any longer, but a new structure SESS_CERT
9303 that holds per-session data (if available); currently, this is
9304 the peer's certificate chain and, for clients, the server's certificate
9305 and temporary key. CERT holds only those values that can have
9306 meaningful defaults in an SSL_CTX.
9309 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9310 from the internal representation. Various PKCS#7 fixes: remove some
9311 evil casts and set the enc_dig_alg field properly based on the signing
9315 *) Allow PKCS#12 password to be set from the command line or the
9316 environment. Let 'ca' get its config file name from the environment
9317 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9321 *) Allow certificate policies extension to use an IA5STRING for the
9322 organization field. This is contrary to the PKIX definition but
9323 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9327 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9328 without disallowing inline assembler and the like for non-pedantic builds.
9331 *) Support Borland C++ builder.
9332 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9337 *) SHA-1 cleanups and performance enhancements.
9338 [Andy Polyakov <appro@fy.chalmers.se>]
9340 *) Sparc v8plus assembler for the bignum library.
9341 [Andy Polyakov <appro@fy.chalmers.se>]
9343 *) Accept any -xxx and +xxx compiler options in Configure.
9346 *) Update HPUX configuration.
9349 *) Add missing sk_<type>_unshift() function to safestack.h
9350 [Ralf S. Engelschall]
9352 *) New function SSL_CTX_use_certificate_chain_file that sets the
9353 "extra_cert"s in addition to the certificate. (This makes sense
9354 only for "PEM" format files, as chains as a whole are not
9358 *) Support verify_depth from the SSL API.
9359 x509_vfy.c had what can be considered an off-by-one-error:
9360 Its depth (which was not part of the external interface)
9361 was actually counting the number of certificates in a chain;
9362 now it really counts the depth.
9365 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9366 instead of X509err, which often resulted in confusing error
9367 messages since the error codes are not globally unique
9368 (e.g. an alleged error in ssl3_accept when a certificate
9369 didn't match the private key).
9371 *) New function SSL_CTX_set_session_id_context that allows to set a default
9372 value (so that you don't need SSL_set_session_id_context for each
9373 connection using the SSL_CTX).
9376 *) OAEP decoding bug fix.
9379 *) Support INSTALL_PREFIX for package builders, as proposed by
9383 *) New Configure options "threads" and "no-threads". For systems
9384 where the proper compiler options are known (currently Solaris
9385 and Linux), "threads" is the default.
9388 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9391 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9392 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9393 such as /usr/local/bin.
9396 *) "make linux-shared" to build shared libraries.
9397 [Niels Poppe <niels@netbox.org>]
9399 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9402 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9403 extension adding in x509 utility.
9406 *) Remove NOPROTO sections and error code comments.
9409 *) Partial rewrite of the DEF file generator to now parse the ANSI
9413 *) New Configure options --prefix=DIR and --openssldir=DIR.
9416 *) Complete rewrite of the error code script(s). It is all now handled
9417 by one script at the top level which handles error code gathering,
9418 header rewriting and C source file generation. It should be much better
9419 than the old method: it now uses a modified version of Ulf's parser to
9420 read the ANSI prototypes in all header files (thus the old K&R definitions
9421 aren't needed for error creation any more) and do a better job of
9422 translating function codes into names. The old 'ASN1 error code imbedded
9423 in a comment' is no longer necessary and it doesn't use .err files which
9424 have now been deleted. Also the error code call doesn't have to appear all
9425 on one line (which resulted in some large lines...).
9428 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9431 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9432 0 (which usually indicates a closed connection), but continue reading.
9435 *) Fix some race conditions.
9438 *) Add support for CRL distribution points extension. Add Certificate
9439 Policies and CRL distribution points documentation.
9442 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9445 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9446 8 of keying material. Merlin has also confirmed interop with this fix
9447 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9448 [Merlin Hughes <merlin@baltimore.ie>]
9450 *) Fix lots of warnings.
9451 [Richard Levitte <levitte@stacken.kth.se>]
9453 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9454 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9455 [Richard Levitte <levitte@stacken.kth.se>]
9457 *) Fix problems with sizeof(long) == 8.
9458 [Andy Polyakov <appro@fy.chalmers.se>]
9460 *) Change functions to ANSI C.
9463 *) Fix typos in error codes.
9464 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9466 *) Remove defunct assembler files from Configure.
9469 *) SPARC v8 assembler BIGNUM implementation.
9470 [Andy Polyakov <appro@fy.chalmers.se>]
9472 *) Support for Certificate Policies extension: both print and set.
9473 Various additions to support the r2i method this uses.
9476 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9477 return a const string when you are expecting an allocated buffer.
9480 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9481 types DirectoryString and DisplayText.
9484 *) Add code to allow r2i extensions to access the configuration database,
9485 add an LHASH database driver and add several ctx helper functions.
9488 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9489 fail when they extended the size of a BIGNUM.
9492 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9493 support typesafe stack.
9496 *) Fix typo in SSL_[gs]et_options().
9497 [Nils Frostberg <nils@medcom.se>]
9499 *) Delete various functions and files that belonged to the (now obsolete)
9500 old X509V3 handling code.
9503 *) New Configure option "rsaref".
9506 *) Don't auto-generate pem.h.
9509 *) Introduce type-safe ASN.1 SETs.
9512 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9513 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9515 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9516 that links with OpenSSL (well at least cause lots of warnings), but fear
9517 not: the conversion is trivial, and it eliminates loads of evil casts. A
9518 few STACKed things have been converted already. Feel free to convert more.
9519 In the fullness of time, I'll do away with the STACK type altogether.
9522 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9523 specified in <certfile> by updating the entry in the index.txt file.
9524 This way one no longer has to edit the index.txt file manually for
9525 revoking a certificate. The -revoke option does the gory details now.
9526 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9528 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9529 `-text' option at all and this way the `-noout -text' combination was
9530 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9531 [Ralf S. Engelschall]
9533 *) Make sure a corresponding plain text error message exists for the
9534 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9535 verify callback function determined that a certificate was revoked.
9536 [Ralf S. Engelschall]
9538 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9539 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9540 all available cipers including rc5, which was forgotten until now.
9541 In order to let the testing shell script know which algorithms
9542 are available, a new (up to now undocumented) command
9543 "openssl list-cipher-commands" is used.
9546 *) Bugfix: s_client occasionally would sleep in select() when
9547 it should have checked SSL_pending() first.
9550 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9551 the raw DSA values prior to ASN.1 encoding.
9554 *) Tweaks to Configure
9555 [Niels Poppe <niels@netbox.org>]
9557 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9561 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9564 *) New config option to avoid instructions that are illegal on the 80386.
9565 The default code is faster, but requires at least a 486.
9568 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9569 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9570 same as SSL2_VERSION anyway.
9573 *) New "-showcerts" option for s_client.
9576 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9577 application. Various cleanups and fixes.
9580 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9581 modify error routines to work internally. Add error codes and PBE init
9582 to library startup routines.
9585 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9586 packing functions to asn1 and evp. Changed function names and error
9587 codes along the way.
9590 *) PKCS12 integration: and so it begins... First of several patches to
9591 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9592 objects to objects.h
9595 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9596 and display support for Thawte strong extranet extension.
9599 *) Add LinuxPPC support.
9600 [Jeff Dubrule <igor@pobox.org>]
9602 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9603 bn_div_words in alpha.s.
9604 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9606 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9607 OAEP isn't supported when OpenSSL is built with RSAref.
9608 [Ulf Moeller <ulf@fitug.de>]
9610 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9611 so they no longer are missing under -DNOPROTO.
9612 [Soren S. Jorvang <soren@t.dk>]
9615 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9617 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9618 doesn't work when the session is reused. Coming soon!
9621 *) Fix a security hole, that allows sessions to be reused in the wrong
9622 context thus bypassing client cert protection! All software that uses
9623 client certs and session caches in multiple contexts NEEDS PATCHING to
9624 allow session reuse! A fuller solution is in the works.
9625 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9627 *) Some more source tree cleanups (removed obsolete files
9628 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9629 permission on "config" script to be executable) and a fix for the INSTALL
9631 [Ulf Moeller <ulf@fitug.de>]
9633 *) Remove some legacy and erroneous uses of malloc, free instead of
9635 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9637 *) Make rsa_oaep_test return non-zero on error.
9638 [Ulf Moeller <ulf@fitug.de>]
9640 *) Add support for native Solaris shared libraries. Configure
9641 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9642 if someone would make that last step automatic.
9643 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9645 *) ctx_size was not built with the right compiler during "make links". Fixed.
9648 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9649 except NULL ciphers". This means the default cipher list will no longer
9650 enable NULL ciphers. They need to be specifically enabled e.g. with
9651 the string "DEFAULT:eNULL".
9654 *) Fix to RSA private encryption routines: if p < q then it would
9655 occasionally produce an invalid result. This will only happen with
9656 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9659 *) Be less restrictive and allow also `perl util/perlpath.pl
9660 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9661 because this way one can also use an interpreter named `perl5' (which is
9662 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9663 installed as `perl').
9664 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9666 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9667 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9669 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9670 advapi32.lib to Win32 build and change the pem test comparision
9671 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9672 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9673 and crypto/des/ede_cbcm_enc.c.
9676 *) DES quad checksum was broken on big-endian architectures. Fixed.
9679 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9680 Win32 test batch file so it (might) work again. The Win32 test batch file
9681 is horrible: I feel ill....
9684 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9685 in e_os.h. Audit of header files to check ANSI and non ANSI
9686 sections: 10 functions were absent from non ANSI section and not exported
9687 from Windows DLLs. Fixed up libeay.num for new functions.
9690 *) Make `openssl version' output lines consistent.
9691 [Ralf S. Engelschall]
9693 *) Fix Win32 symbol export lists for BIO functions: Added
9694 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9695 to ms/libeay{16,32}.def.
9696 [Ralf S. Engelschall]
9698 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9699 fine under Unix and passes some trivial tests I've now added. But the
9700 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9701 added to make sure no one expects that this stuff really works in the
9702 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9703 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9705 [Ralf S. Engelschall]
9707 *) Fix the generation of two part addresses in perl.
9708 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9710 *) Add config entry for Linux on MIPS.
9711 [John Tobey <jtobey@channel1.com>]
9713 *) Make links whenever Configure is run, unless we are on Windoze.
9716 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9717 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9721 *) Add a useful kludge to allow package maintainers to specify compiler and
9722 other platforms details on the command line without having to patch the
9723 Configure script everytime: One now can use ``perl Configure
9724 <id>:<details>'', i.e. platform ids are allowed to have details appended
9725 to them (seperated by colons). This is treated as there would be a static
9726 pre-configured entry in Configure's %table under key <id> with value
9727 <details> and ``perl Configure <id>'' is called. So, when you want to
9728 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9729 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9730 now, which overrides the FreeBSD-elf entry on-the-fly.
9731 [Ralf S. Engelschall]
9733 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9736 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9737 on the `perl Configure ...' command line. This way one can compile
9738 OpenSSL libraries with Position Independent Code (PIC) which is needed
9739 for linking it into DSOs.
9740 [Ralf S. Engelschall]
9742 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9746 *) Cleaned up the LICENSE document: The official contact for any license
9747 questions now is the OpenSSL core team under openssl-core@openssl.org.
9748 And add a paragraph about the dual-license situation to make sure people
9749 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9750 to the OpenSSL toolkit.
9751 [Ralf S. Engelschall]
9753 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9754 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9755 Additonally cleaned up the `make links' target: Remove unnecessary
9756 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9757 to speed processing and no longer clutter the display with confusing
9758 stuff. Instead only the actually done links are displayed.
9759 [Ralf S. Engelschall]
9761 *) Permit null encryption ciphersuites, used for authentication only. It used
9762 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9763 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9767 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9768 signed attributes when verifying signatures (this would break them),
9769 the detached data encoding was wrong and public keys obtained using
9770 X509_get_pubkey() weren't freed.
9773 *) Add text documentation for the BUFFER functions. Also added a work around
9774 to a Win95 console bug. This was triggered by the password read stuff: the
9775 last character typed gets carried over to the next fread(). If you were
9776 generating a new cert request using 'req' for example then the last
9777 character of the passphrase would be CR which would then enter the first
9781 *) Added the new `Includes OpenSSL Cryptography Software' button as
9782 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9783 button and can be used by applications based on OpenSSL to show the
9784 relationship to the OpenSSL project.
9785 [Ralf S. Engelschall]
9787 *) Remove confusing variables in function signatures in files
9788 ssl/ssl_lib.c and ssl/ssl.h.
9789 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9791 *) Don't install bss_file.c under PREFIX/include/
9792 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9794 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9795 functions that return function pointers and has support for NT specific
9796 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9797 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9798 unsigned to signed types: this was killing the Win32 compile.
9801 *) Add new certificate file to stack functions,
9802 SSL_add_dir_cert_subjects_to_stack() and
9803 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9804 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9805 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9806 This means that Apache-SSL and similar packages don't have to mess around
9807 to add as many CAs as they want to the preferred list.
9810 *) Experiment with doxygen documentation. Currently only partially applied to
9812 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9813 openssl.doxy as the configuration file.
9816 *) Get rid of remaining C++-style comments which strict C compilers hate.
9817 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9819 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9820 compiled in by default: it has problems with large keys.
9823 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9824 DH private keys and/or callback functions which directly correspond to
9825 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9826 is needed for applications which have to configure certificates on a
9827 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9829 For the RSA certificate situation is makes no difference, but
9830 for the DSA certificate situation this fixes the "no shared cipher"
9831 problem where the OpenSSL cipher selection procedure failed because the
9832 temporary keys were not overtaken from the context and the API provided
9833 no way to reconfigure them.
9834 The new functions now let applications reconfigure the stuff and they
9835 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9836 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9837 non-public-API function ssl_cert_instantiate() is used as a helper
9838 function and also to reduce code redundancy inside ssl_rsa.c.
9839 [Ralf S. Engelschall]
9841 *) Move s_server -dcert and -dkey options out of the undocumented feature
9842 area because they are useful for the DSA situation and should be
9843 recognized by the users.
9844 [Ralf S. Engelschall]
9846 *) Fix the cipher decision scheme for export ciphers: the export bits are
9847 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9848 SSL_EXP_MASK. So, the original variable has to be used instead of the
9849 already masked variable.
9850 [Richard Levitte <levitte@stacken.kth.se>]
9852 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9853 [Richard Levitte <levitte@stacken.kth.se>]
9855 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9856 from `int' to `unsigned int' because it's a length and initialized by
9857 EVP_DigestFinal() which expects an `unsigned int *'.
9858 [Richard Levitte <levitte@stacken.kth.se>]
9860 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9861 script. Instead use the usual Shell->Perl transition trick.
9862 [Ralf S. Engelschall]
9864 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9865 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9866 -noout -modulus' as it's already the case for `openssl rsa -noout
9867 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9868 currently the public key is printed (a decision which was already done by
9869 `openssl dsa -modulus' in the past) which serves a similar purpose.
9870 Additionally the NO_RSA no longer completely removes the whole -modulus
9871 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9873 [Ralf S. Engelschall]
9875 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9876 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9877 [Arne Ansper <arne@ats.cyber.ee>]
9879 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9880 to be added. Now both 'req' and 'ca' can use new objects defined in the
9884 *) Add cool BIO that does syslog (or event log on NT).
9885 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9887 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9888 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9889 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9890 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9893 *) Add preliminary config info for new extension code.
9896 *) Make RSA_NO_PADDING really use no padding.
9897 [Ulf Moeller <ulf@fitug.de>]
9899 *) Generate errors when private/public key check is done.
9902 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9903 for some CRL extensions and new objects added.
9906 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9907 key usage extension and fuller support for authority key id.
9910 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9911 padding method for RSA, which is recommended for new applications in PKCS
9912 #1 v2.0 (RFC 2437, October 1998).
9913 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9914 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9915 against Bleichbacher's attack on RSA.
9916 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9919 *) Updates to the new SSL compression code
9920 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9922 *) Fix so that the version number in the master secret, when passed
9923 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9924 (because the server will not accept higher), that the version number
9925 is 0x03,0x01, not 0x03,0x00
9926 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9928 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9929 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9930 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9933 *) Support for RAW extensions where an arbitrary extension can be
9934 created by including its DER encoding. See apps/openssl.cnf for
9938 *) Make sure latest Perl versions don't interpret some generated C array
9939 code as Perl array code in the crypto/err/err_genc.pl script.
9940 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9942 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9943 not many people have the assembler. Various Win32 compilation fixes and
9944 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9948 *) Modify configure script 'Configure' to automatically create crypto/date.h
9949 file under Win32 and also build pem.h from pem.org. New script
9950 util/mkfiles.pl to create the MINFO file on environments that can't do a
9951 'make files': perl util/mkfiles.pl >MINFO should work.
9954 *) Major rework of DES function declarations, in the pursuit of correctness
9955 and purity. As a result, many evil casts evaporated, and some weirdness,
9956 too. You may find this causes warnings in your code. Zapping your evil
9957 casts will probably fix them. Mostly.
9960 *) Fix for a typo in asn1.h. Bug fix to object creation script
9961 obj_dat.pl. It considered a zero in an object definition to mean
9962 "end of object": none of the objects in objects.h have any zeros
9963 so it wasn't spotted.
9964 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9966 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9967 Masking (CBCM). In the absence of test vectors, the best I have been able
9968 to do is check that the decrypt undoes the encrypt, so far. Send me test
9969 vectors if you have them.
9972 *) Correct calculation of key length for export ciphers (too much space was
9973 allocated for null ciphers). This has not been tested!
9976 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9977 message is now correct (it understands "crypto" and "ssl" on its
9978 command line). There is also now an "update" option. This will update
9979 the util/ssleay.num and util/libeay.num files with any new functions.
9981 perl util/mkdef.pl crypto ssl update
9982 it will update them.
9985 *) Overhauled the Perl interface (perl/*):
9986 - ported BN stuff to OpenSSL's different BN library
9987 - made the perl/ source tree CVS-aware
9988 - renamed the package from SSLeay to OpenSSL (the files still contain
9989 their history because I've copied them in the repository)
9990 - removed obsolete files (the test scripts will be replaced
9991 by better Test::Harness variants in the future)
9992 [Ralf S. Engelschall]
9994 *) First cut for a very conservative source tree cleanup:
9995 1. merge various obsolete readme texts into doc/ssleay.txt
9996 where we collect the old documents and readme texts.
9997 2. remove the first part of files where I'm already sure that we no
9998 longer need them because of three reasons: either they are just temporary
9999 files which were left by Eric or they are preserved original files where
10000 I've verified that the diff is also available in the CVS via "cvs diff
10001 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
10002 the crypto/md/ stuff).
10003 [Ralf S. Engelschall]
10005 *) More extension code. Incomplete support for subject and issuer alt
10006 name, issuer and authority key id. Change the i2v function parameters
10007 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
10008 what that's for :-) Fix to ASN1 macro which messed up
10009 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
10012 *) Preliminary support for ENUMERATED type. This is largely copied from the
10016 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
10017 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10019 *) Make sure `make rehash' target really finds the `openssl' program.
10020 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10022 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
10023 like to hear about it if this slows down other processors.
10026 *) Add CygWin32 platform information to Configure script.
10027 [Alan Batie <batie@aahz.jf.intel.com>]
10029 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
10030 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10032 *) New program nseq to manipulate netscape certificate sequences
10035 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
10039 *) Fixes to BN code. Previously the default was to define BN_RECURSION
10040 but the BN code had some problems that would cause failures when
10041 doing certificate verification and some other functions.
10042 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10044 *) Add ASN1 and PEM code to support netscape certificate sequences.
10047 *) Add ASN1 and PEM code to support netscape certificate sequences.
10050 *) Add several PKIX and private extended key usage OIDs.
10053 *) Modify the 'ca' program to handle the new extension code. Modify
10054 openssl.cnf for new extension format, add comments.
10057 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
10058 and add a sample to openssl.cnf so req -x509 now adds appropriate
10062 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
10063 error code, add initial support to X509_print() and x509 application.
10066 *) Takes a deep breath and start addding X509 V3 extension support code. Add
10067 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
10068 stuff is currently isolated and isn't even compiled yet.
10071 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
10072 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
10073 Removed the versions check from X509 routines when loading extensions:
10074 this allows certain broken certificates that don't set the version
10075 properly to be processed.
10078 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
10079 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
10080 can still be regenerated with "make depend".
10083 *) Spelling mistake in C version of CAST-128.
10084 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
10086 *) Changes to the error generation code. The perl script err-code.pl
10087 now reads in the old error codes and retains the old numbers, only
10088 adding new ones if necessary. It also only changes the .err files if new
10089 codes are added. The makefiles have been modified to only insert errors
10090 when needed (to avoid needlessly modifying header files). This is done
10091 by only inserting errors if the .err file is newer than the auto generated
10092 C file. To rebuild all the error codes from scratch (the old behaviour)
10093 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
10094 or delete all the .err files.
10097 *) CAST-128 was incorrectly implemented for short keys. The C version has
10098 been fixed, but is untested. The assembler versions are also fixed, but
10099 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
10100 to regenerate it if needed.
10101 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
10102 Hagino <itojun@kame.net>]
10104 *) File was opened incorrectly in randfile.c.
10105 [Ulf Möller <ulf@fitug.de>]
10107 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
10108 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
10109 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
10110 al: it's just almost always a UTCTime. Note this patch adds new error
10111 codes so do a "make errors" if there are problems.
10114 *) Correct Linux 1 recognition in config.
10115 [Ulf Möller <ulf@fitug.de>]
10117 *) Remove pointless MD5 hash when using DSA keys in ca.
10118 [Anonymous <nobody@replay.com>]
10120 *) Generate an error if given an empty string as a cert directory. Also
10121 generate an error if handed NULL (previously returned 0 to indicate an
10122 error, but didn't set one).
10123 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
10125 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
10128 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
10129 parameters. This was causing a warning which killed off the Win32 compile.
10132 *) Remove C++ style comments from crypto/bn/bn_local.h.
10133 [Neil Costigan <neil.costigan@celocom.com>]
10135 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
10136 based on a text string, looking up short and long names and finally
10137 "dot" format. The "dot" format stuff didn't work. Added new function
10138 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
10139 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
10140 OID is not part of the table.
10143 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
10144 X509_LOOKUP_by_alias().
10147 *) Sort openssl functions by name.
10150 *) Get the gendsa program working (hopefully) and add it to app list. Remove
10151 encryption from sample DSA keys (in case anyone is interested the password
10155 *) Make _all_ *_free functions accept a NULL pointer.
10156 [Frans Heymans <fheymans@isaserver.be>]
10158 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
10160 [Anonymous <nobody@replay.com>]
10162 *) s_server should send the CAfile as acceptable CAs, not its own cert.
10163 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10165 *) Don't blow it for numeric -newkey arguments to apps/req.
10166 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10168 *) Temp key "for export" tests were wrong in s3_srvr.c.
10169 [Anonymous <nobody@replay.com>]
10171 *) Add prototype for temp key callback functions
10172 SSL_CTX_set_tmp_{rsa,dh}_callback().
10175 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
10176 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
10179 *) X509_name_add_entry() freed the wrong thing after an error.
10180 [Arne Ansper <arne@ats.cyber.ee>]
10182 *) rsa_eay.c would attempt to free a NULL context.
10183 [Arne Ansper <arne@ats.cyber.ee>]
10185 *) BIO_s_socket() had a broken should_retry() on Windoze.
10186 [Arne Ansper <arne@ats.cyber.ee>]
10188 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
10189 [Arne Ansper <arne@ats.cyber.ee>]
10191 *) Make sure the already existing X509_STORE->depth variable is initialized
10192 in X509_STORE_new(), but document the fact that this variable is still
10193 unused in the certificate verification process.
10194 [Ralf S. Engelschall]
10196 *) Fix the various library and apps files to free up pkeys obtained from
10197 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
10200 *) Fix reference counting in X509_PUBKEY_get(). This makes
10201 demos/maurice/example2.c work, amongst others, probably.
10202 [Steve Henson and Ben Laurie]
10204 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
10205 `openssl' and second, the shortcut symlinks for the `openssl <command>'
10206 are no longer created. This way we have a single and consistent command
10207 line interface `openssl <command>', similar to `cvs <command>'.
10208 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
10210 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
10211 BIT STRING wrapper always have zero unused bits.
10214 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
10217 *) Make the top-level INSTALL documentation easier to understand.
10220 *) Makefiles updated to exit if an error occurs in a sub-directory
10221 make (including if user presses ^C) [Paul Sutton]
10223 *) Make Montgomery context stuff explicit in RSA data structure.
10226 *) Fix build order of pem and err to allow for generated pem.h.
10229 *) Fix renumbering bug in X509_NAME_delete_entry().
10232 *) Enhanced the err-ins.pl script so it makes the error library number
10233 global and can add a library name. This is needed for external ASN1 and
10234 other error libraries.
10237 *) Fixed sk_insert which never worked properly.
10240 *) Fix ASN1 macros so they can handle indefinite length construted
10241 EXPLICIT tags. Some non standard certificates use these: they can now
10245 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10246 into a single doc/ssleay.txt bundle. This way the information is still
10247 preserved but no longer messes up this directory. Now it's new room for
10248 the new set of documenation files.
10249 [Ralf S. Engelschall]
10251 *) SETs were incorrectly DER encoded. This was a major pain, because they
10252 shared code with SEQUENCEs, which aren't coded the same. This means that
10253 almost everything to do with SETs or SEQUENCEs has either changed name or
10254 number of arguments.
10255 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10257 *) Fix test data to work with the above.
10260 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10261 was already fixed by Eric for 0.9.1 it seems.
10262 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10264 *) Autodetect FreeBSD3.
10267 *) Fix various bugs in Configure. This affects the following platforms:
10271 unixware-2.0-pentium
10275 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10276 before they are needed.
10279 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10283 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10285 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10286 changed SSLeay to OpenSSL in version strings.
10287 [Ralf S. Engelschall]
10289 *) Some fixups to the top-level documents.
10292 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10293 because the symlink to include/ was missing.
10294 [Ralf S. Engelschall]
10296 *) Incorporated the popular no-RSA/DSA-only patches
10297 which allow to compile a RSA-free SSLeay.
10298 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10300 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10301 when "ssleay" is still not found.
10302 [Ralf S. Engelschall]
10304 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10305 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10307 *) Updated the README file.
10308 [Ralf S. Engelschall]
10310 *) Added various .cvsignore files in the CVS repository subdirs
10311 to make a "cvs update" really silent.
10312 [Ralf S. Engelschall]
10314 *) Recompiled the error-definition header files and added
10315 missing symbols to the Win32 linker tables.
10316 [Ralf S. Engelschall]
10318 *) Cleaned up the top-level documents;
10319 o new files: CHANGES and LICENSE
10320 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10321 o merged COPYRIGHT into LICENSE
10322 o removed obsolete TODO file
10323 o renamed MICROSOFT to INSTALL.W32
10324 [Ralf S. Engelschall]
10326 *) Removed dummy files from the 0.9.1b source tree:
10327 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10328 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10329 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10330 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10331 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10332 [Ralf S. Engelschall]
10334 *) Added various platform portability fixes.
10337 *) The Genesis of the OpenSSL rpject:
10338 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10339 Young and Tim J. Hudson created while they were working for C2Net until
10341 [The OpenSSL Project]
10344 Changes between 0.9.0b and 0.9.1b [not released]
10346 *) Updated a few CA certificates under certs/
10349 *) Changed some BIGNUM api stuff.
10352 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10353 DGUX x86, Linux Alpha, etc.
10356 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10357 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10361 *) Add -strparse option to asn1pars program which parses nested
10363 [Dr Stephen Henson <shenson@bigfoot.com>]
10365 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10368 *) DSA fix for "ca" program.
10371 *) Added "-genkey" option to "dsaparam" program.
10374 *) Added RIPE MD160 (rmd160) message digest.
10377 *) Added -a (all) option to "ssleay version" command.
10380 *) Added PLATFORM define which is the id given to Configure.
10383 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10386 *) Extended the ASN.1 parser routines.
10389 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10392 *) Added a BN_CTX to the BN library.
10395 *) Fixed the weak key values in DES library
10398 *) Changed API in EVP library for cipher aliases.
10401 *) Added support for RC2/64bit cipher.
10404 *) Converted the lhash library to the crypto/mem.c functions.
10407 *) Added more recognized ASN.1 object ids.
10410 *) Added more RSA padding checks for SSL/TLS.
10413 *) Added BIO proxy/filter functionality.
10416 *) Added extra_certs to SSL_CTX which can be used
10417 send extra CA certificates to the client in the CA cert chain sending
10418 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10421 *) Now Fortezza is denied in the authentication phase because
10422 this is key exchange mechanism is not supported by SSLeay at all.
10425 *) Additional PKCS1 checks.
10428 *) Support the string "TLSv1" for all TLS v1 ciphers.
10431 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10432 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10435 *) Fixed a few memory leaks.
10438 *) Fixed various code and comment typos.
10441 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10442 bytes sent in the client random.
10443 [Edward Bishop <ebishop@spyglass.com>]